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Claims  |
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What is claimed is:
1. An optical switch array comprising:
a shutter array comprising M.times.N shutters capable of being individually
opened and closed, said shutter array being arranged in a matrix form of M
rows.times.N columns, where M is an integer of 2 or more and N is an
integer of 2 or more, said shutter array having first and second sides;
first light-emitting means disposed at a first side or said shutter array,
said first light-emitting means comprising M light sources for
respectively illuminating each row of said shutter array;
second light-emitting means disposed at the first side of said shutter
array, said second light-emitting means comprising N light sources for
respectively illuminating each column of said shutter array;
first light receiving means disposed at a second side of said shutter
array, said first light receiving means comprising M photodetectors each
of which receives a light emitted from said second light-emitting means
and transmitted through a respective row of said shutter array; and
second light receiving means disposed at the second side of said shutter
array, said second light receiving means comprising N photodetectors each
of which receives a light emitted from said first light-emitting means and
transmitted through a respective column of said shutter array.
2. An optical switch array according to claim 1, wherein each light source
of said first light-emitting means corresponds to a plurality of shutters
constituting each respective row of said shutter array, and each light
source of said second light-emitting means corresponds to a plurality of
shutter constituting each respective column of said shutter array.
3. An optical switch array according to claim 1, wherein each photodetector
of said first light receiving means corresponds to a plurality of shutters
constituting each respective row of said shutter array, and each
photodetector of said second light receiving means corresponds to a
plurality of shutters constituting each respective column of said shutter
array.
4. An optical switch array according to claim 1 further comprising:
first anamorphic optical system for guiding a light emitted from said first
light-emitting means to said shutter array;
second anamorphic optical system for guiding a light emitted from said
second light-emitting means to said shutter array; and
a beam splitter for synthesizing the light emitted from said first
light-emitting means and the light emitted from said second light-emitting
means.
5. An optical switch array according to claim 4, wherein said first and
second anamorphic optical systems comprise a spherical lens and a
cylindrical lens, respectively.
6. An optical switch array according to claim 4, wherein said first
light-emitting means emits light, a polarized state of which is different
from that of light emitted from said second light-emitting means, and said
beam splitter comprises a polarizing beam splitter.
7. An optical switch array according to claim 4, wherein said first
light-emitting means emits light, a wavelength of which is different from
that of light emitted from said second light-emitting means, and said beam
splitter comprises a spectral beam splitter.
8. An optical switch array according to claim 1, further comprising:
a beam splitter for splitting a light passed through said shutter array;
first anamorphic optical system for guiding a light emitted from said first
light-emitting means and passed through said shutter array to said second
light receiving means; and
second anamorphic optical system for guiding a light emitted from said
second light-emitting means and passed through said shutter array to said
first light receiving means.
9. An optical switch array according to claim 8, wherein said first and
second anamorphic optical systems comprise a spherical lens and a
cylindrical lens, respectively.
10. An optical switch array according to claim 8, wherein said first
light-emitting means emits light, a polarized state of which is different
from that of light emitted from said second light-emitting means, and said
beam splitter comprises a polarizing beam splitter.
11. An optical switch array according to claim 8, wherein said first
light-emitting means emits light, a wavelength of which is different from
that of light emitted from said second light-emitting means, and said beam
splitter comprises a spectral beam splitter.
12. An optical signal transmitting system comprising:
a first terminal group comprising M terminals capable of receiving and
transmitting signals, where M is an integer of 2 or more;
a second terminal group comprising N terminals capable of receiving and
transmitting signals, wherein N is an integer of 2 or more;
a shutter array comprising M.times.N shutters capable of being individually
opened and closed, arranged in a matrix of M rows.times.N columns, said
shutter array having first and second sides;
first light-emitting means disposed at a first side of said shutter array,
said first light-emitting means comprising M light sources which are
driven according to signals inputted from said M terminals of said first
terminal group, said M light sources respectively illuminating each row of
said shutter array;
second light-emitting means disposed at the first side of said shutter
array, said second light-emitting means comprising N light sources which
are driven according to signals inputted from said N terminals of said
second terminal group, said N light sources respectively illuminating each
column of said shutter array;
first light receiving means disposed at a second side of said shutter
array, said first light receiving means comprising M photodetectors each
of which receives a light emitted from said second light-emitting means
and passed through a respective row of said shutter array, said M
photodetectors respectively outputting signals to said M terminals of said
first terminal group; and
second light receiving means disposed at the second side of said shutter
array, said second light receiving means comprising N photodetectors each
of which receives a light emitted from said first light-emitting means and
passed through a respective column of said shutter array, said N
photodetectors respectively outputting signals to said N terminals of said
second terminal groups.
13. A system according to claim 12, wherein each light source of said first
light-emitting means corresponds to a plurality of shutters constituting
each respective row of said shutter array, and each light source of said
second light-emitting means corresponds to a plurality of shutters
constituting each respective each respective column of said shutter array.
14. A system according to claim 12, wherein each photodetector of said
first light receiving means corresponds to a plurality of shutters
constituting each row of said shutter array, and each photodetector of
said second light receiving means corresponds to a plurality of shutters
constituting each respective column of said shutter array.
15. A system according to claim 12, further comprising:
a first anamorphic optical system for guiding a light emitted from said
first light-emitting means to said shutter array;
a second anamorphic optical system for guiding a light emitted from said
second light-emitting means to said shutter array; and
a beam splitter for synthesizing the light emitted from said first
light-emitting means and the light emitted from said second light-emitting
means.
16. A system according to claim 15, wherein said first and second
anamorphic optical system comprise a spherical lens and a cylindrical
lens, respectively.
17. A system according to claim 15, wherein said first light-emitting means
emits light, a polarized state of which is different from that of light
emitted from said second light-emitting means, and said beam splitter
comprises a polarizing beam splitter.
18. A system according to claim 15, wherein said first light-emitting means
emits light, a wavelength of which is different from that of light emitted
from said second light-emitting means, and said beam splitter comprises a
spectral beam splitter.
19. A system according to claim 12, further comprising;
a beam splitter for splitting a light passed through said shutter array;
first anamorphic optical system for guiding a light emitted from said first
light-emitting means and passed through said shutter array to said second
light receiving means; and
second anamorphic optical system for guiding a light emitted from said
second light-emitting means and passed through said shutter array to said
first light receiving means.
20. A system according to claim 19, wherein said first and second
anamorphic optical systems comprise a spherical lens and a cylindrical
leans, respectively.
21. A system according to claim 19, wherein said first light-emitting means
emits light, a polarized state of which is different from that of light
emitted from said second light-emitting means, and said beam splitter
comprises a polarizing beam splitter.
22. A system according to claim 19, wherein said first light-emitting means
emits light, a wavelength of which is different from that of light emitted
from said second light-emitting means, and said beam splitter comprises a
spectral beam splitter.
23. An optical switch array comprising:
a shutter array comprising M.times.N shutters capable of being individually
opened and closed, arranged in a matrix form of M rows.times.N columns,
where M is an integer of 2 or more and N is an integer of 2 or more, said
shutter array having first and second sides;
first light-emitting means disposed at a first side or said shutter array,
said first light-emitting means comprising M light sources each of which
illuminates a half region of a respective column of said shutter array;
second light-emitting means disposed at a second side of said shutter
array, said second light-emitting means comprising N light sources each of
which illuminates a half region of a respective row of said shutter array;
first light receiving means disposed at the first side of said shutter
array, said first light which receives a light emitted from said second
light-emitting means and transmitted through the other half region of each
respective row of said shutter array; and
second light receiving means disposed at the second side of said shutter
array, said second light receiving means comprising N photodetectors each
of which receives a light emitted from said first light-emitting means and
transmitted through the other half region of each respective column of
said shutter array.
24. An optical switch array according to claim 23, wherein the opening or
closing of said shutters is conducted such that a plurality of shutters
are opened or closed as one unit, and said optical switch array further
comprises a mask on which a predetermined pattern of light transmitting or
reflecting regions is repeatedly formed every said unit.
25. An optical switch array according to claim 23 further comprising:
a first anamorphic optical system for guiding a light emitted from said
first light-emitting means to said shutter array and also for guiding a
light emitted from said second light-emitting means and transmitted
through said shutter array to said first light receiving means; and
a second anamorphic optical system for guiding a light emitted from said
second light-emitting means to said shutter array and also for guiding a
light emitted from said first light-emitting means and transmitted through
said shutter array to said second light receiving means.
26. An optical switch array according to claim 25, wherein said first and
second anamorphic optical systems comprise a spherical lens and a
cylindrical lens, respectively.
27. An optical switch array according to claim 23, wherein said first
light-emitting means and said first light receiving means are disposed
close in contact with each other at the first side of said shutter array
and have the same size as said shutter array, and said second
light-emitting means and said second light receiving means are provided
tightly in contact with each other at the second side of said shutter
array and have the same size as said shutter array.
28. An optical signal transmitting system comprising:
a first terminal group comprising M terminals capable of receiving and
transmitting signals, where m is an integer of 2 or more;
a second terminal group comprising N terminals capable of receiving and
transmitting signals, wherein N is an integer of 2 or more;
a shutter array comprising M.times.N shutters capable of being individually
opened and closed, arranged in a matrix of M rows.times.N columns, said
shutter array having first and second sides;
first light-emitting means disposed at a first side of said shutter array,
said first light-emitting means comprising M light sources each of which
illuminates a half region of each respective row of said shutter array,
said M light sources being driven according to signals inputted from said
M terminals of said first terminal group;
second light-emitting means disposed at a second side of said shutter
array, said second light-emitting means comprising N light sources each of
which illuminates a half region of a respective row of said shutter array,
said N light sources being driven according to signals inputted from said
N terminals of said second terminal group;
first light receiving means disposed at the first side of said shutter
array, said first light receiving means comprising M photodetectors each
which receives a light emitted from said second light-emitting means and
transmitted through the other half region of each respective row of said
shutter array, said M photodetectors respectively outputting signals to
said M terminals of said first terminal group; and
second light receiving means disposed at the second side of said shutter
array, said second light receiving means comprising N photodetectors each
of which receives a light emitted from said first light-emitting means and
transmitted through the other half region of each respective column of
said shutter array, said N photodetectors respectively outputting signals
to said N terminals of said second terminal group.
29. A system according to claim 28, wherein the opening or closing of said
shutters is conducted such that a plurality of shutters are opened or
closed as one unit, and said optical switch array further comprises a mask
on which a predetermined pattern of light transmitting or reflecting
regions is repeatedly formed every said unit.
30. A system according to claim 28, further comprising:
a first anamorphic optical system for guiding a light emitted from said
first light-emitting means to said shutter array and also for guiding a
light emitted from said second light-emitting means and transmitted
through said shutter array to said first light receiving means; and
a second anamorphic optical system for guiding a light emitted from said
second light-emitting means to said shutter array and also for guiding a
light emitted from said first light-emitting means and transmitted through
said shutter array to said second light receiving means.
31. A system according to claim 30, wherein said first and second
anamorphic optical systems comprise a spherical lens and a cylindrical
lens, respectively.
32. A system according to claim 31, wherein said first and second
anamorphic optical systems comprise a spherical lens and a cylindrical
lens, respectively.
33. A system according to claim 28, wherein said first light-emitting means
and said first light receiving means are disposed in close contact with
each other at the first side of said shutter array and have the same size
as said shutter array, and second light-emitting means and said second
light receiving means are provided tightly in contact with each other and
have the same size as said shutter array.
34. An optical switch array comprising:
a shutter array comprising M.times.N shutters capable of being individually
opened and closed, arranged in a matrix of M rows.times.N columns, where M
is an integer of 2 or more and N is an integer of 2 or more, said shutter
array having first and second sides;
a first light-emitting means disposed at a first side of said shutter
array, said first light-emitting means comprising M light sources each of
which illuminates a respective row of said shutter array;
second light-emitting means disposed at a second side of said shutter
array, said second light-emitting means comprising N light sources each of
which illuminates a respective column of said shutter array;
first light receiving means disposed at the first side of said shutter
array, and first light receiving means comprising M photodetectors each of
which receives a light emitted from said second light-emitting means and
transmitted through each respective row of said shutter array, said M
photodetectors and said M light sources of said first light-emitting means
being arranged parallel to each other at a position optically shifted with
respect to said shutter array; and
second light receiving means disposed at the second side of said shutter
array, said second light receiving means comprising N photodetectors each
of which receives a light emitted from said first light-emitting means and
transmitted through each respective column of said shutter array, said N
photodetectors and said N light sources of said second light-emitting
means being arranged parallel to each other at a position optically
shifted with respect to said shutter array.
35. An optical switch array according to claim 34, wherein the opening or
closing of said shutters is conducted such that a plurality of shutters
are opened or closed as one unit, and said optical switch array further
comprises a mask on which a predetermined pattern of light transmitting or
reflecting regions is repeatedly formed every said unit.
36. An optical switch array according to claim 34 further comprising:
a first anamorphic optical system for guiding a light emitted from said
first light-emitting means to said shutter array and also for guiding a
light emitted from said second light-emitting means and transmitted
through said shutter array to said first light receiving means; and
a second anamorphic optical system for guiding a light emitted from said
second light-emitting means to said shutter array and also for guiding a
light emitted from said first light-emitting means and transmitted through
said shutter array to said second light receiving means.
37. An optical switch array according to claim 36, wherein said first and
second anamorphic optical systems comprise a spherical lens and a
cylindrical lens, respectively.
38. An optical signal transmitting system comprising:
a first terminal group comprising M terminals capable of receiving and
transmitting signals, where M is an integer of 2 or more;
a second terminal group comprising N terminals capable of receiving and
transmitting signals, wherein N is an integer of 2 or more;
a shutter array comprising M.times.N shutters capable of being individually
opened and closed, arranged in a matrix form of M rows.times.N columns,
said shutter array having first and second sides;
first light-emitting means disposed at a first side of said shutter array,
said first light-emitting means comprising M light sources each of which
illuminates a respective row of said shutter array, said M light sources
being driven according to signals inputted from said M terminals group;
second light-emitting means disposed at a second side of said shutter
array, said second light-emitting means comprising N light sources each of
which illuminates a respective column of said shutter array, said N light
sources being driven according to signals inputted from said N terminals
of said second terminal group;
first light receiving means disposed at the first side of said shutter
array, and first light receiving means comprising M photodetectors each of
which receives a light emitted from said second light-emitting means and
transmitted through each respective row of said shutter array, said M
photodetectors and said M light sources of said first light-emitting means
being arranged parallel to each other at a position optically shifted with
respect to said shutter array, said M photodetectors respectively
outputting signals to said M terminals of said first terminal group; and
second light receiving means disposed at the second side of said shutter
array, said second light receiving means comprising N photodetectors each
of which receives a light emitted from said first light-emitting means and
transmitted through each respective column of said shutter array, said N
photodetectors and said N light sources of said second light-emitting
means being arranged parallel to each other at a position optically
shifted with respect to said shutter array, said N photodetectors
respectively outputting signals to said N of terminals of said second
terminal group.
39. A system according to claim 38, wherein the opening or closing of said
shutters is conducted such that a plurality of shutters are opened or
closed as one unit, and said optical switch array further comprises a mask
on which a predetermined pattern of light transmitting or reflecting
regions is repeatedly formed every said unit.
40. A system according to claim 38, further comprising:
a first anamorphic optical system for guiding a light emitted from said
first light-emitting means to said shutter array and also for guiding a
light emitted from said second light-emitting means and transmitted
through said shutter array to said first light receiving means; and
a second anamorphic optical system for guiding a light emitted from said
second light-emitting means to said shutter array and also for guiding a
light emitted from said first light-emitting means and transmitted through
said shutter array to said second light receiving means.
41. An optical switch array for connecting a first group of M terminals,
wherein M is an integer of not less than 1, capable of transmitting and
receiving signals to and from a second group of N terminals, wherein N is
an integer of not less than 1, comprising:
first light-emitting means arranged in a first direction and consisting of
M light sources driven in response to the signals input from said first
group of terminals;
second light-emitting means arranged in the first direction and consisting
of N light sources driven in response to signals input from said second
group of terminals;
first light-receiving means arranged in a second direction perpendicular to
the first direction and consisting of M photodetectors for outputting the
signals to said first group of terminals, said first light-receiving means
receiving a beam emitted from said second light-emitting means;
second light-receiving means arranged in the second direction and
consisting of N photodetectors for outputting the signals to said second
group of terminals, said second light-receiving means receiving a beam
emitted from said first light-emitting means;
a shutter array arranged in optical paths extending from said first and
second light-emitting means to said first and second light-emitting means,
said shutter array comprising M.times.N openable shutters arranged in a
matrix form;
first optical means for guiding beams from said first and second
light-emitting means to said shutter array;
a first anamorphic optical system for keeping said first light-emitting
means and said shutter array in a conjugate relationship in the first
direction and for locating said first light-emitting means at a front
focal position of said first anamorphic optical system in the second
direction;
a second anamorphic optical system for keeping said second light-emitting
means and said shutter array in a conjugate relationship in the second
direction and for locating said second light-emitting means at a front
focal position of said second anamorphic optical system in the first
direction; and
a first beam splitter for synthesizing the beam emitted from said first
light-emitting means with the beam emitted from said second light-emitting
means and guiding a synthesized beam to said shutter array,
wherein said first and second light-emitting means emit beams polarized in
different directions, and said first beams splitter comprises a polarizing
beam splitter.
42. An optical switch array for connecting a first group of M terminals,
wherein M is an integer of not less than 1, capable of transmitting and
receiving signals to and from a second group of N terminals, wherein N is
an integer of not less than 1, comprising:
first light-emitting means arranged in a first direction and consisting of
M light sources driven in response to the signals input from said first
group of terminals;
second light-emitting means arranged in the first direction and consisting
of N light sources driven in response to signals input from said second
group of terminals;
first light-receiving means arranged in a second direction perpendicular to
the first direction and consisting of M photodetectors for outputting the
signals to said first group of terminals, said first light-receiving means
receiving a beam emitted from said second light-emitting means;
second light-receiving means arranged in the second direction and
consisting of N photodetectors for outputting the signals to said second
group of terminals, said second light-receiving means receiving a beam
emitted from said first light-emitting means;
a shutter array arranged in optical paths extending from said first and
second light-emitting means to said first and second light-emitting means,
said shutter array comprising M.times.N openable shutters arranged in a
matrix form;
first optical means for guiding beams from said first and second
light-emitting means to said shutter array;
a first anamorphic optical system for keeping said first light-emitting
means and said shutter array in a conjugate relationship in the first
direction and for locating said first light-emitting means at a front
focal position of said first anamorphic optical system in the second
direction;
a second anamorphic optical system for keeping said second light-emitting
means and said shutter array in a conjugate relationship in the second
direction and for locating said second light-emitting means at a front
focal position of said second anamorphic optical system in the first
direction; and
a first beam splitter for synthesizing the beam emitted from said first
light-emitting means with the beam emitted from said second light-emitting
means and guiding a synthesized beam to said shutter array,
wherein said first and second light-emitting means emit beams having
different wavelengths, and said first beam splitter comprises a spectral
beam splitter.
43. An optical switch array for connecting a first group of M terminals,
wherein M is an integer of not less than 1, capable of transmitting and
receiving signals to and from a second group of N terminals, wherein N is
an integer of not less than 1, comprising:
first light-emitting means arranged in a first direction and consisting of
M light sources driven in response to the signals input from said first
group of terminals;
second light-emitting means arranged in the first direction and consisting
of N light sources driven in response to signals input from said second
group of terminals;
first light-receiving means arranged in a second direction perpendicular to
the first direction and consisting of M photodetectors for outputting the
signals to said first group of terminals, said first light-receiving means
receiving a beam emitted from said second light-emitting means;
second light-receiving means arranged in the second direction and
consisting of N photodetectors for outputting the signals to said second
group of terminals, said second light-receiving means receiving a beam
emitted from said first light-emitting means;
a shutter array arranged in optical paths extending from said first and
second light-emitting means to said first and second light-emitting means,
said shutter array comprising M.times.N openable shutters arranged in a
matrix form;
optical means for guiding beams from said shutter array to said first and
second light-receiving means;
a first anamorphic optical system for keeping said second light-receiving
means and said shutter array in a conjugate relationship in the second
direction and for locating said second light-emitting means at a rear
focal position of said first anamorphic optical system in the first
direction;
a second anamorphic optical system for keeping said first light-emitting
means and said shutter array in a conjugate relationship in the first
direction and for locating said first light-emitting means at a rear focal
position of said second anamorphic optical system in the second direction;
and
a beam splitter for splitting the beam having passed through said shutter
array and guiding split beams to said first and second light-receiving
means,
wherein said first and second light-emitting means emit beams polarized in
different directions, and said beam splitter comprises a polarizing beam
splitter.
44. An optical switch array for connecting a first group of M terminals,
wherein M is an integer of not less than 1, capable of transmitting and
receiving signals to and from a second group of N terminals, wherein N is
an integer of not less than 1, comprising:
first light-emitting means arranged in a first direction and consisting of
M light sources driven in response to the signals input from said first
group of terminals;
second light-emitting means arranged in the first direction and consisting
of N light sources driven in response to signals input from said second
group of terminals;
first light-receiving means arranged in a second direction perpendicular to
the first direction and consisting of M photodetectors for outputting the
signals to said first group of terminals, said first light-receiving means
receiving a beam emitted from said second light-emitting means;
second light-receiving means arranged in the second direction and
consisting of N photodetectors for outputting the signals to said second
group of terminals, said second light-receiving means receiving a beam
emitted from said first light-emitting means;
a shutter array arranged in optical paths extending from said first and
second light-emitting means to said first and second light-emitting means,
said shutter array comprising M.times.N openable shutters arranged in a
matrix form;
optical means for guiding beams from said shutter array to said first and
second light-receiving means;
a first anamorphic optical system for keeping said second light-receiving
means and said shutter array in a conjugate relationship in the second
direction and for locating said second light-emitting means at a rear
focal position of said first anamorphic optical system in the first
direction;
a second anamorphic optical system for keeping said first light-emitting
means and said shutter array in a conjugate relationship in the first
direction and for locating said first light-emitting means at a rear focal
position of said second anamorphic optical system in the second direction;
and
a beam splitter for splitting the beam having passed through said shutter
array and guiding split beams to said first and second light-receiving
means,
wherein said first and second light-emitting means emit beams polarized in
different directions, and said beam splitter comprises a spectral beam
splitter.
45. An optical signal transmission system comprising:
a first group consisting of M terminals, wherein M is an integer of not
less than 1, capable of transmitting and receiving signals;
a second group consisting of N terminals, wherein N is an integer of not
less than 1, capable of transmitting and receiving signals;
first light-emitting means arranged in a first direction and consisting of
M light sources driven in response to the signals input from the first
group of terminals;
second light-emitting means arranged in the first direction and consisting
of N light sources driven in response to the signals input from the
terminals of second group;
first light-receiving means arranged in a second direction perpendicular to
the first direction and consisting of m photodetectors for outputting the
signals to said first group of terminals, said first light-receiving means
receiving a beam emitted from said second light-emitting means;
second light-receiving means arranged in the second direction and
consisting of N photodetectors for outputting the signals to said second
group of terminals, said second light-receiving means receiving a beam
emitted from said first light-emitting means;
a shutter array arranged in optical paths extending from said first and
second light-emitting means to said first and second light-emitting means,
said shutter array comprising M.times.N openable shutters arranged in a
matrix form;
first optical means for guiding beams from said first and second
light-emitting means to said shutter array;
a first anamorphic optical system for keeping said first light-emitting
means and said shutter array in a conjugate relationship in the first
direction and for locating said first light-emitting means at a front
focal position of said first anamorphic optical system in the second
direction;
a second anamorphic optical system for keeping said second light-emitting
means and said shutter array in a conjugate relationship in the second
direction and for locating said second light-emitting means at a front
focal position of said second anamorphic optical system in the first
direction; and a first beam splitter for synthesizing the beam emitted
from said first light-emitting means with the beam emitted from said
second light-emitting means and guiding a synthesized beam to said shutter
array,
wherein said first and second light-emitting means emit beams polarized in
different directions, and said first beams splitter comprises a polarizing
beam splitter.
46. An optical signal transmission system comprising:
a first group consisting of M terminals, wherein M is an integer of not
less than 1, capable of transmitting and receiving signals;
a second group consisting of N terminals, wherein N is an integer of not
less than 1, capable of transmitting and receiving signals;
first light-emitting means arranged in a first direction and consisting of
M light sources driven in response to the signals input from the first
group of terminals;
second light-emitting means arranged in the first direction and consisting
of N light sources driven in response to the signals input from the
terminals of second group;
first light-receiving means arranged in a second direction perpendicular to
the first direction and consisting of m photodetectors for outputting the
signals to said first group of terminals, said first light-receiving means
receiving a beam emitted from said second light-emitting means;
second light-receiving means arranged in the second direction and
consisting of N photodetectors for outputting the signals to said second
group of terminals, said second light-receiving means receiving a beam
emitted from said first light-emitting means;
a shutter array arranged in optical paths extending from said first and
second light-emitting means to said first and second light-emitting means,
said shutter array comprising M.times.N openable shutters arranged in a
matrix form;
first optical means for guiding beams from said first and second
light-emitting means to said shutter array;
a first anamorphic optical system for keeping said first light-emitting
means and said shutter array in a conjugate relationship in the first
direction and for locating said first light-emitting means at a front
focal position of said first anamorphic optical system in the second
direction;
a second anamorphic optical system for keeping said second light-emitting
means and said shutter array in a conjugate relationship in the second
direction and for locating said second light-emitting means at a front
focal position of said second anamorphic optical system in the first
direction; and a first beam splitter for synthesizing the beam emitted
from said first light-emitting means with the beam emitted from said
second light-emitting means and guiding a synthesized beam to said shutter
array,
wherein said first and second light-emitting means emit beams polarized in
different wavelengths, and said first beams splitter comprises a spectral
beam splitter.
47. An optical signal transmission system comprising:
a first group consisting of M terminals, wherein M is an integer of not
less than 1, capable of transmitting and receiving signals;
a second group consisting of N terminals, wherein N is an integer of not
less than 1, capable of transmitting and receiving signals;
first light-emitting means arranged in a first direction and consisting of
M light sources driven in response to the signals input from the first
group of terminals;
second light-emitting means arranged in the first direction and consisting
of N light sources driven in response to the signals input from the
terminals of second group;
first light-receiving means arranged in a second direction perpendicular to
the first direction and consisting of m photodetectors for outputting the
signals to said first group of terminals, said first light-receiving means
receiving a beam emitted from said second light-emitting means;
second light-receiving means arranged in the second direction and
consisting of N photodetectors for outputting the signals to said second
group of terminals, said second light-receiving means receiving a beam
emitted from said first light-emitting means;
a shutter array arranged in optical paths extending from said first and
second light-emitting means to said first and second light-emitting means,
said shutter array comprising M.times.N openable shutters arranged in a
matrix form;
optical means for guiding beams from said shutter array to said first and
second light-receiving means;
a first anamorphic optical system for keeping said second light-receiving
means and said shutter array in a conjugate relationship in the second
direction and for locating said second light-emitting means at a rear
focal position of said first anamorphic optical system in the first
direction;
a second anamorphic optical system for keeping said first light-emitting
means and said shutter array in a conjugate relationship in the first
direction and for locating said first light-emitting means at a rear focal
position of said second anamorphic optical system in the second direction;
and
a beam splitter for splitting the beam having passed through said shutter
array and guiding split beams to said first and second light-receiving
means,
wherein said first and second light-emitting means emit beams polarized in
different directions, and said beam splitter comprises a polarized beam
splitter.
48. An optical signal transmission system comprising:
a first group consisting of M terminals, wherein M is an integer of not
less than 1, capable of transmitting and receiving signals;
a second group consisting of N terminals, wherein N is an integer of not
less than 1, capable of transmitting and receiving signals;
first light-emitting means arranged in a first direction and consisting of
M light sources driven in response to the signals input from the first
group of terminals;
second light-emitting means arranged in the first direction and consisting
of N light sources driven in response to the signals input from the
terminals of second group;
first light-receiving means arranged in a second direction perpendicular to
the first direction and consisting of m photodetectors for outputting the
signals to said first group of terminals, said first light-receiving means
receiving a beam emitted from said second light-emitting means;
second light-receiving means arranged in the second direction and
consisting of N photodetectors for outputting the signals to said second
group of terminals, said second light-receiving means receiving a beam
emitted from said first light-emitting means;
a shutter array arranged in optical paths extending from said first and
second light-emitting means to said first and secon | | |
