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Description  |
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BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a video still camera which is constructed
so that a photographed pictorial image is recorded in a built-in recording
medium.
2. Description of the Related Art
Conventionally, there is a digital camera which is constructed so that a
pictorial image photographed through a lens unit is recorded in a built-in
memory or a loading memory card used as a recording medium. Moreover,
there is such a digital camera which is provided with a liquid crystal
image display unit for displaying the photographed pictorial image.
In the digital still camera including the aforesaid image display unit, a
pictorial image of an object captured by the lens unit is displayed on the
image display unit. Hence, photographing is carried out while looking the
pictorial image.
Moreover, the digital still camera is provided with a strobe which is
convenient for photographing in poor light or in back light. The strobe is
fixed onto a camera body together with the lens unit.
As described above, the digital camera which is constructed so that the
photographed image is digitally recorded in the built-in memory, etc, is
relatively large in size, and also, a housing for fitting the lens unit
and the strobe unit is integrated with a camera body. For this reason, in
the case where photographing is carried out in a low angle position or a
high angle position, an angle of user's hand holding the camera body is
awkard and therefore, it has been inconvenient for the user.
In particular, in the digital camera including the liquid crystal image
display unit, the image display unit comprises a liquid crystal display,
and is fitted to a back side of the camera body. The liquid crystal
display has a vertical screen, so that during photographing, the user must
look the vertical screen in a state of being apart from his eyes. Thus, in
the case where the photographing is carried out in a low angle position or
a high angle position, an angle of user's hand holding the camera body
must be changed largely, or the user must change his hands holding the
camera body in position; therefore, there has arisen a disadvantage that a
feel is lost, or operability such as a shutter operation or the like is
lost.
SUMMARY OF THE INVENTION
In view of such aspects, it is an object of the present invention to
provide a video still camera which is capable of carrying out
photographing without changing an angle of user's hand holding the camera
body or changing user's hand position, and which is the most suitable for
strobe flash photographing.
To achieve the above object, the present invention provides a video still
camera having a construction in which a photographing unit including a
lens unit and a strobe unit is attached to a camera body so that it is
rotatable in an up-and-down direction.
With the above construction, in the case where photographing is carried out
in a low angle position and in a high angle position, the photographing
unit is rotatable in the up-and-down direction with respect to the camera
body. Whereby strobe flash photographing can be readily carried out in the
up-and-down direction and in front and rear directions without changing an
angle of user's hand holding the camera body or changing user's hand
position.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view showing a front side of a video still camera
according to an embodiment of the present invention;
FIG. 2 is a perspective view showing a rear side of the video still camera
shown in FIG. 1 attached with a dry battery adapter;
FIG. 3 is a plan view of the video still camera shown in FIG. 1;
FIG. 4 is a right side view of the video still camera shown in FIG. 1;
FIG. 5 is a perspective view showing a lower surface side of the video
still camera shown in FIG. 1 in a state that the dry battery adapter is
removed therefrom;
FIG. 6 is an exploded perspective view of a camera body of the video still
camera shown in FIG. 1;
FIG. 7 is an exploded perspective view of a photographing unit of the video
still camera shown in FIG. 1;
FIG. 8 is an expanded longitudinal sectional view of an image display unit
of the video still camera shown in FIG. 1;
FIG. 9 is an expanded transverse sectional view of the image display unit
of the video still camera shown in FIG. 1; and
FIG. 10 is a perspective view showing a state of opening a lid of an
example of the dry battery adapter which is applied to the video still
camera of the present invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT
An embodiment of a video still camera according to the present invention
will be described below with reference to the accompanying drawings.
FIG. 1 is a perspective view showing a front side of a video still camera
of the present embodiment; FIG. 2 is a perspective view showing a rear
side of the video still camera; FIG. 3 is a plan view of the video still
camera; FIG. 4 is a side view of the video still camera; and FIG. 5 is a
perspective view showing a lower face side of the video still camera. In
FIG. 1 to FIG. 5, a reference numeral 1 denotes a camera body, and 2
denotes a photographing unit. The camera body 1 has a built-in
recording/reproducing unit including a flash memory as a recording medium,
and is provided with an image display unit 3 at the substantially center
portion on the back side thereof. Also, the photographing unit 2 is
provided with a lens unit 4 and a strobe unit 5 which are arranged in a
transverse direction with a predetermined separation. Further, the
photographing unit 2 is attached to an upper portion of the camera body 1
so as to be rotatable in an up-and-down direction.
The video still camera of the present embodiment will be described below in
detail with reference to exploded perspective views of the camera body 1
and the photographing unit 2 shown in FIG. 6 and FIG. 7, and to
longitudinal and transverse sectional views of the image display unit 3
shown in FIG. 8 and FIG. 9.
As shown in FIG. 6, the camera body 1 is constructed in a manner that its
outermost housing 11 is formed by integrating a front panel 12 with a rear
panel 13. The front panel 12 and the rear panel 13 are formed into a box
shape having upper portions 12b and 13b individually corresponding to
front and rear half portions of the upper peripheral portion of the
outermost housing 11 relative to a front surface portion 12a and a rear
surface portion 13a, bottom surface portions 12c and 13c, and right and
left side surface portions 12d, 12e and 13d, 13e. The upper portions 12b
and 13b of the front and rear panels 12 and 13 are formed with recess
surface portions 12b.sub.1 and 13b.sub.1 closer to the right side surface
portions 12e and 13e, respectively. In this manner, the upper portion of
the outermost housing 11 is formed with a recess portion 11a. Also, the
rear portion 13a of the rear panel 13 is formed with a window 14 for a
screen of the image display unit 3 at the substantially center portion
thereof. The screen of the display unit 3 will be described later.
The outermost housing 11 has a built-in recording/reproducing unit 6
including a flash memory used as a recording medium and the built-in image
display unit 3.
The recording/reproducing unit 6 comprises a unit assembly substrate 61, a
core substrate 62 equipped with a flash memory used as a recording medium
and supported on the front side of the unit assembling substrate 61 via a
multi-connector 63, and a video substrate 64 equipped with a video circuit
and supported on the rear side of the substrate 61. Further, the
recording/reproducing unit 6 is provided with an infrared ray data
transmitter-receiver 65. The transmitter-receiver 65 is attached to the
unit assembling substrate 61 via a terminal substrate 66. Also, the video
substrate 64 is equipped with an operating dial 67 (hereinafter, referred
to as a "menu jog dial") of a rotary encoder with a switch for operating a
camera menu connected to the video circuit. A power terminal plate 70 is
equipped with a video output terminal 68 and a DC power input terminal 69
which are attached via the terminal plate 70 to the video substrate 64.
When the recording/reproducing unit 6 thus constructed is attached to the
inside of the front panel 12 a part of the menu jog dial 67 projects
through an elongated aperture or a slit 15 formed through the right side
surface portion 13e of the rear panel 13. Also, the video output terminal
68 and the power input terminal 69 are situated so as to face the insides
of through-holes 16 and 17 formed below the slit 15. The infrared data
transmitter-receiver 65 is located. so as to correspond to a transparent
window 18 formed on the left-hand side of the front portion 12a of the
front panel 12 from its inside.
The image display unit 3 comprises a liquid crystal display 31, a planar
tube 32 used as a back light and a prism sheet 33 for increasing a
quantity of light. As shown in FIG. 8 and FIG. 9, the liquid crystal
display 31 is housed in a frame 34 and then is fitted into a holder 35,
and the prism sheet 33 is arranged at its inside. When a fitting plate 36
attached with the planar tube 32 is fitted into the holder 35, the planar
tube 32 is located at the inside of the prism sheet 33. A flexible
distributing board 37 used as a lead wire for the planar tube 32 is led
out to the outer side of the fitting plate 36, and is connected to the
aforesaid power terminal plate 70.
In the image display unit 3, the liquid crystal display 31 and the planar
tube 32 are integrally assembled with the prism sheet 33 interposed
therebetween. At that time, the liquid crystal display 31 and the planar
tube 32 are in a sealed state, so that dust can be prevented from coming
in the space therebetween. Thus, the liquid crystal display 31 is securely
illuminated by means of the planar tube 32, so that a pictorial image can
be clearly displayed thereon.
The image display unit 3 constructed as described above is attached to the
inside of the rear surface panel 13 of the outermost housing 11, such that
as shown in FIG. 2, a screen 3a which is the surface side of the liquid
crystal display 31 is exposed through the window 14 of the rear portion
13a.
Within the rear surface panel 13, an operating button group 7 is attached
to a button fitting plate 8 at the right-hand side of the image display
part shown in FIG. 3. The operating button group 7 is connected to a video
substrate 64 by means of a flexible distributing board 9 so as to control
the video circuit.
The operating button group 7 comprises a flash button 71 to be operated
upon carrying out strobe photographing, a return button 72 to be operated,
upon interrupting a menu operation, a self-timer button 73 to be operated
upon carrying out a self-timer photographing, a rotation button 74
operated when rotating a display screen, that is, when rotating the screen
for each angle of 90.degree., a screen display button 75 to be operated
upon switching the display screen in the order of coarse display, detail
display, no display, and a review button 76 to be operated after
photographing for reproducing a photographed pictorial image. The
respective buttons 71 to 76 have a pressing portions projecting from
button window holes 19 which are situated on the side of the window 14 and
formed through the rear surface portion 13a of the rear surface panel 13.
Next, as shown in FIG. 7, the photographing unit 2 has an outermost housing
21 which is formed by integrating a front side cabinet 22 with a rear side
cabinet 23. The width of the outermost housing 21 is made to be
substantially the same width as the aforesaid recess portion 11a of the
outermost housing 11 of the camera body 1. The front side cabinet 22 has a
peripheral surface portion 22b which is formed over the entire peripheral
edge of a front surface portion 22a with a relatively low height. Also,
the rear side cabinet 23 has a main portion 23a which is formed into a U
shape of substantially falling sideways over portions from the rear
surface side to the up-and-down face sides thereof. The main portion 23a
has side surface portions 23b and 23c which are subjected to a rise-up
shaping at its opposite side edges.
A holder member 24 is fixedly fitted into the outermost housing 21 formed
by integrating the front side cabinet 22 and the rear side cabinet 23, and
then, the lens unit 4 and the strobe unit 5 are attached to the holder 24,
thus forming the photographing unit 2.
The holder member 24 comprises a retaining plate portion 25 fitted into the
front cabinet 22 of the outermost housing 21 and leg plate portions 26 and
27 which project backward from opposite sides of the retaining plate
portion 25 and are respectively fitted into both side portions of the rear
side cabinet 23. The retaining plate portion 25 has a lens window 28
correspondent to the lens unit 4, and a strobe window 29 correspondent to
the strobe unit 5 which are formed with a predetermined interval in the
transverse direction. The strobe window 29 is divided into a flash window
29a and a light receiving window 29b. Also, on the outside surfaces of the
leg plate portions 26 and 27 there are respectively formed bearing bosses
26a and 27a which project outward with their axial lines being aligned
with each other.
The holder member 24 is attached with the lens unit 4 and the strobe unit 5
which are arranged between the leg plate portions 26 and 27 of the
retaining plate portion 25 with a predetermined separating distance in the
transverse direction. The lens unit 4 is constructed in a manner that a
solid state imaging device (hereinafter, referred simply to as a CCD) and
a lens mechanism 41 capable of achieving pan-focus and macro photographing
are coupled with each other and attached to a lens holder 42. A CCD
circuit board 43 is fixed on the rear side of the lens holder 42, and a
flexible distributing board 44 is led out therefrom which is connected to
the aforesaid core substrate 62 side of the recording/reproducing unit 6.
Also, a flexible distributing board 45 to be connected to the core
substrate 62 is led out from the lens mechanism 41 side.
The lens unit 4 is attached to the inside surface of the retaining plate
portion 25 of the holder 24 so as to correspond to the lens window 28. The
front surface side of the lens window 28 is attached with a lens
protective transparent plate 46 via a frame 47. The lens protective
transparent plate 46 faces a lens window 22a.sub.1 of the front side
cabinet 22 together with the frame 47. Also, the main portion 23a of the
rear side cabinet 23 of the outermost housing 21 is provided with a macro
photographing switching lever 48 for the lens unit 4 at its upper face on
the left-hand side. Further, the main portion 23a is formed with a finger
settlement portion 49 on the peripheral face on the right-hand side
thereof.
The strobe unit 5 is constructed in a manner that a reflection plate 52
holding a strobe flash lamp 51 such as a xenon tube or the like is fixedly
fitted to the inside of a strobe holder 53, the strobe holder 53 is
attached to a strobe substrate 54 and then the strobe flash lamp 51 is
connected to a power supply circuit. The strobe substrate 54 is mounted
with a light receiving element 55 for adjusting a strobe flash intensity
by detecting an ambient height. The light receiving element 55 is inserted
into and held by a holding cylinder 56 attached to the side portion of the
strobe holder 53. A flexible distributing board 57 and a lead wire 58 are
led out from the strobe substrate 54, and are respectively connected to
the video substrate 64 of the record/reproducing unit 6 and the power
terminal plate 70.
The strobe unit 5 is attached to the inner surface side of the retaining
plate portion 25 of the holder 24 such a manner, that the strobe flash
lamp 51 corresponds to the flash window 29a of the strobe window 29, and
the light receiving element 55 corresponds to the light receiving window
29b. Protective transparent plates 59a and 59b are fitted into the flash
window 29a and the light receiving window 29b, respectively. The
protective transparent plates 59a and 59b face strobe windows 22a.sub.2
and 22a.sub.3, respectively.
The photographing unit 2 is attached to the outermost housing 11 of the
camera body 1 in such a manner that the bearing bosses 26a and 27a of both
the leg plate portions 26 and 27 of the holder 24 are respectively
inserted into insertion holes 11a.sub.1 and 11a.sub.2 formed so as to ride
on the front and rear surface panels 12 and 13 on the inside of the recess
portion 11a. Thus, the photographing unit 2 is rotatably supported by
bearing members provided on the upper opposite sides of the outermost
housing 11. The flexible distributing boards 44 and 45 on the lens unit 4
side are inserted from the left-hand side insertion hole 11a.sub.1 into
the outermost housing 11 and then connected to the core substrate 62. On
the other hand, the flexible distributing boards 57 and 58 on the strobe
unit 5 side are inserted from the right-hand side insertion hole 11a.sub.2
into the outermost housing 11 and then connected to the video substrate 64
and power terminal plate 70 side, respectively.
As shown in FIG. 7, a support member 82 rotatably arranged around a shaft
member 81, which is coupled to the bearing boss 26a, is fixed to the
inside of the outermost hosing 11 by a screw or the like. Also, the
bearing boss 27a is coupled to a lock mechanism including a lock lever 83
(see FIG. 6) rotatably supported on the right side surface of the
outermost housing 11.
In the upper left side of the outermost housing 11 of the camera body 1, a
shutter switch 84 attached to a fitting member 85 is located adjacent to
the support member 82. A shutter button 86 for operating the shutter
switch 84 is located on the upper left-side surface of the outermost
housing 11. The left-hand side surface of the outermost housing 11 of the
camera body 1 is attached with a power/function dial 87 which is connected
to the video substrate 64 of the recording/reproducing unit 6 by means of
a flexible distributing board 89. If the power/function dial 87 rotated,
it is possible to select a power on-off operation, a reproducing
operation, and auto/manual photographing switching operation.
The camera body 1 is provided with a battery case 91 at the lower portion
of the outermost housing 11 thereof, as shown in FIG. 1 and FIG. 6. To one
end portion of the battery case 91 there is attached a battery terminal
plate 92 to which a lead wire 93 is connected. To the outer end portion of
the battery case 91 there is attached a battery lid 94 which will cover an
opening at the lower portion on the left side surface of the outermost
housing 11. A battery housed in the battery case 91 as a power source is a
rechargeable battery for example, a rechargeable type lithium ion battery
95 is applicable.
As shown in FIG. 5, on the bottom surface side of the battery case 91 there
are provided a tripod screw hole 96, a screen brightness adjusting dial
97, a reset button 98 and a hook portion 99 for a dry battery adapter
which will be described later.
A dry battery is applicable as a power source for the video still camera
constructed as described above. In order to apply the dry battery, a dry
battery adapter 101 as shown in FIG. 10 is used.
The dry battery adapter 101 comprises a box-like body 102 housing therein
four size-AA dry batteries 100, and a lid 103 used as a battery connecting
terminal plate. A lead wire 105 with a plug 104 to be connected to the
camera body 1 side is led out from the body 102. On the upper surface of
the box-like body 102, a hooked pawl 106 which is engaged with the hook
portion 99 of the camera body 1 side is projected and also, a fastening
screw 107, which is screwed into the tripod screw hole 96, is rotatably
attached.
The dry battery adapter 101 is fixed onto the lower surface side of the
camera body 1, that is, the lower surface of the battery case 91, in a
manner of engaging the hooked pawl 106 with the hook portion 99 and
screwing the fastening screw 107 into the tripod screw hole 96. When the
plug 104 of the lead wire 105 is inserted into the DC power input terminal
69 of the camera body 1 side through the through hole 17, the size AA dry
batteries 100 becomes a power source of the camera body 1.
In the video still camera constructed as described above, when the power
supply is turned on by rotating the function dial 87 to the auto
photographing setting, the image of an object captured by the lens unit 4
of the photographing unit 2 is displayed on the screen 3a of the image
display unit 3. Then, in this state, when the shutter 84 is pushed through
the shutter button 86, the object is photographed. The photographed still
image is displayed on the screen 3a of the image display unit 3 and also
recorded in the recording/reproducing unit 6.
When the function dial 87 is set to the manual photographing setting, the
brightness, the shutter speed, the picture quality and the like are
adjusted by a user on the menu screen before photographing. Also, in the
case where macro photographing is carried out, the macro photographing
switching lever 48 is operated to switch the lens unit 4 to the macro
photographing side. Moreover, in the case where strobe photographing is
carried out, the flash button 71 is pushed, and thereafter, when the
shutter 84 is pushed as described above, flash photographing is carried
out.
With use of various menus, photographings corresponding to these menus can
be carried out and recorded.
When the function dial 87 is set to a reproduction after photographing and
recording, the photographed still image is reproduced, and then, is
displayed on the screen 3a of the image display unit 3.
The photographed and recorded still image can be transmitted to a video
still camera, a personal computer, etc. equiped with an infrared data
transmitter/receiver through the infrared data transmitter/receiver 65,
and then, is subjected to dubbing. Also, the aforesaid still image can be
transmitted to a digital printer, and then, can be printed.
As described above, according to the video still camera of the present
example in which the photographed still image is displayed on the screen
3a of the image display unit 3, and is recorded and reproduced in the
recording/reproducing unit 6, the photographing unit 2 is rotatable in the
up-and-down direction relative to the camera body 1. Therefore, when the
lock lever 83 is operated to release the lock of the photographing unit 2
relative to the camera body 1, the photographing unit 2 is rotated and
changed to a desired angle, and is located again, thus photographing being
carried out at the position where its photographing angle is changed.
Moreover, if the photographing unit 2 is rotatable by 180.degree. with
respect to the camera body 1, photographing can be carried out in a state
that the user faces the screen 3a of the image display unit 3. Namely, the
user can look at his image while photographing himself.
The aforesaid photographing at various angle positions can be carried out
without changing an angle of the camera body 1, so that there is no need
of changing the angle of user's hand holding the camera body 1 and also no
need of viewing angle for looking the screen 3a of the image display unit
3.
Even when photographing at the changed angle position, the strobe unit 5 is
rotated integrally with the lens unit 4, and the photographing angle is
freely changed, so that the strobe photographing can be carried out in the
same manner as photographing at a usual angle.
The photographing unit 2 rotatable with respect to the camera body 1 is
rotatably supported on the both sides of the camera body 1. Thus, the
photographing unit 2 is always stably rotated, and can be securely locked
at a desired angle position. Accordingly, photographing at various angle
positions, that is, at a low angle position or a high angle position can
be carried out without blur, and also, photographing can be securely
carried out in the same manner as a camera having a construction in which
the photographing unit is integrated with the camera body.
The flexible distributing boards 44 and 45 on the lens unit 4, and the
flexible distributing board 57 and lead wire 58 on the strobe unit 5,
which electrically connect the lens unit 4 and the strobe unit 5 of the
photographing unit 2 rotatable together relative to the camera body 1 to
the recording/reproducing unit 6 of the 1 camera body 1 are introduced
through different side portions of the outermost housing 11 of the camera
body 1, that is, through the left side portion and the right side portion
thereof. Therefore, the distributing boards of both the lens unit and the
strobe unit have no risk of electrically interacting with each other.
Therefore, mechanical noise caused in flashing of the strobe unit 5 will
not badly influenced an image signal of the lens unit 4, and hence a more
clear still image can be recorded and reproduced.
The liquid crystal display 31 of the image display unit 3 and the planar
tube 32 used as the back light are integrated with each other in a sealing
structure, so that dust or the like can be prevented from coming therein.
Thus, a more clear still image can be always displayed on the screen 3a of
the image display unit 3.
One embodiment of the present invention has been described. The present
invention is not limited to the above embodiment, and various
modifications can be made within a scope of the present invention.
For example, the camera body 1 and the photographing unit 2 are not
restricted to a shape shown in the figures. There may be a structure in
which the photographing unit 2 having the lens unit 4 and the strobe unit
5 arranged in the transverse direction with a predetermined interval is
supported on opposite sides of the camera body 1.
The recording/reproducing unit 6 is not restricted to the construction
shown in the figures. A memory card may be used as the recording medium.
Also, the image display unit 3 may be constructed such that it can be
detachable relative to the camera body 1.
The present invention is applicable to various digital still cameras.
As described above, according to the video still camera of the present
invention, the lens unit and the strobe unit are arranged in the identical
box body, and are attached to the camera body such that they are rotatable
in the up-and-down direction. Therefore, there is no need of changing an
angle of user's hand holding the camera body and also no need of changing
the hand position, and strobe flash photographing can be carried out at
any angle in the up-and-down direction or front-and-rear direction.
Moreover, a low-angle and a high-angle photograph can be securely made
under a dark light or a back light.
Having described a preferred embodiment of the present invention with
reference to the accompanying drawings, it is to be understood that the
present invention is not limited to the above-mentioned embodiment and
that various changes and modifications can be effected therein by one
skilled in the art without departing from the spirit or scope of the
present invention as defined in the appended claims.
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