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Description  |
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BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention involves a camera system wherein the camera body may be
remotely controlled, and more particularly, in which the direction of the
optical axis of the photo-taking lens of the camera may be altered via
remote control operation.
2. Description of the Prior Art
It is convenient if, when a camera operator takes a photograph at a
distance from the camera body, the photo-taking lens' optical axis may be
remotely controlled such that it faces the operator (subject) in the
desired position.
Laid-open of patent applications Sho 60-139998, Sho 60-138522 and Sho
60-139076 show a system wherein the optical axis of the photo-taking lens
may be moved to face a set direction in relation in the remote control
device via operation of a pan head drive motor, when a pan head attached
to the camera has received a signal transmitted from a remote control
device.
However, because the conventional art does not calculate the angle between
the remote control device and the optical axis of the photo-taking lens,
the remote control device must transmit a continuous signal in order to
move the optical axis of the photo-taking lens to the desired angle,
through operation of the pan head drive motor. In addition, the
aforementioned conventional art describes another embodiment in which the
need for transmission of a steady signal is eliminated by enabling the
remote control device to transmit information on the rotation angle of the
photo-taking lens' optical axis. However, this creates the problem that,
since the angle between the remote control device and the lens' optical
axis is not calculated, the operator does not know what angle-related
information should be transmitted in order to align the lens' optical axis
with the operator, where the operator is not directly in line with the
optical axis.
Moreover, the conventional art did not provide any means to inform the
operator of the remote control device whether he or she was within the
lens' angle of view.
SUMMARY OF THE INVENTION
An object of this invention is to provide a remote-controllable camera
system wherein the optical axis of the photo-taking lens may be moved,
such that a remote control device and the optical axis of the photo-taking
lens are placed in a set position without the need for transmission of a
steady signal from said remote control device.
Another object of this invention is to provide a remote-controllable camera
system where an operator holding said remote control device can know
whether said operator is inside the angle of view.
In order to achieve the first object given above, the remote-controllable
camera system of this invention comprises the following:
a remote control device for sending a predetermined signal;
means, provided in a camera body, for receiving the predetermined signal
sent from said remote control device;
means, provided in the camera body, for calculating an angle between said
remote control device and an optical axis of a photo-taking lens mounted
on the camera body on the basis of the receiving result of said receiving
means; and
means for moving the optical axis of the photo-taking lens to a point where
the angle between said remote control device and the optical axis is a
predetermined value on the basis of the calculation result of said
calculating means, said moving means being detachable from the camera
body.
Further, in order to achieve the second object above, the
remote-controllable camera system of the present invention comprises the
following:
a remote control device for sending a predetermined signal;
means for receiving the predetermined signal sent from said remote control
device;
means for calculating an angle between said remote control device and an
optical axis of a photo-taking lens mounted on a camera body on the basis
of the receiving result of said receiving means;
means for inputting data on a field of view of the photo-taking lens; means
for judging means whether or not said remote control device is in the
field of view on the basis of the calculation result of said calculation
means; and means for displaying the judging result of said judging means.
BRIEF DESCRIPTION OF THE DRAWING
FIGS. 1A, 1B, and 1C illustrate the external structure of the camera body
of the first embodiment of the present invention;
FIGS. 2A, 2B, and 2C illustrate the remote controller;
FIGS. 3A, 3B, and 3C show the mechanism of the vertical rotation drive
unit;
FIGS. 4A through 4E illustrate the moving mechanism of the vertical
rotation drive unit;
FIGS. 5A, 5B, and 5C illustrate the vertical rotation drive unit;
FIGS. 6A and 6B show the encoder of vertical rotation drive unit;
FIGS. 7A, 7B, and 7C illustrate the moving mechanism of the horizontal
rotation drive unit;
FIG. 8 shows the encoder of horizontal rotation drive unit;
FIG. 9 mainly illustrates the horizontal rotation drive unit;
FIGS. 10A and 10B is a diagram showing the rotation of the camera body;
FIG. 11 is a block circuit diagram showing the camera system of the first
embodiment;
FIG. 12 is a diagram showing the signals generated by the encoder;
FIGS. 13A, 13B, and 13C is a diagram showing the signal transmission and
the angle data;
FIG. 14 is a flowchart showing main routine;
FIG. 15 is a flowchart showing sub-routine for resetting the drive unit;
FIGS. 16A and 16B is a flowchart showing sub-routine for zooming operation;
FIGS. 17A and 17B is a flowchart showing sub-routine for measuring
light/distance and for exposing;
FIG. 18 is a list showing the relationship between the distance to the
object and the focus position;
FIG. 19 is a flowchart showing sub-routine for remote control mode;
FIG. 20 is a diagram for explaining the zoom encoder;
FIG. 21 is a diagram showing details of calculation for the auto program
zoom;
FIGS. 22A, 22B, and 22C illustrate the external structure of the camera
body of the second embodiment of the present invention;
FIG. 23 is a block circuit diagram showing the camera system of the second
embodiment;
FIG. 24 is a flowchart showing sub-routine for remote control mode of the
embodiment;
FIGS. 25A-25E illustrate the external structure of the camera body of the
third embodiment of the present invention;
FIG. 26 is a block circuit diagram showing the camera system of the third
embodiment; and
FIG. 27 is a flowchart showing sub-routine for remote control mode of the
third embodiment.
DESCRIPTION OF THE PREFERRED EMBODIMENT
An embodiment of this invention is explained below with diagrams.
FIG. 1 illustrates the external structure of the camera body CA, where (A)
is a plane view, (B) a front view and (C) a left side view. In these
diagrams, the switch 1 is the main switch which, when set in the ON
position, sets the camera ready for operation and when set in the OFF
position, prevents the camera from being operated.
The button 2 is a release button. When it is pressed partly down to the
first stage, the camera measures light and distance to the subject, and
when it is pressed further to the second stage, the camera adjusts the
exposure.
The windows 3 are autofocus windows. One of them, 3a, emits an infrared
beam to measure the distance to the subject, and the other window, 3b,
receives its reflection.
The unit 4 is a finder unit.
The window 5 is a photometric window.
The window 6 is a remote control window to receive the infrared beam from
the remote controller. The remote controller is explained later.
The unit 7 is a lens unit.
The lever 8 is a zoom lever. When this zoom lever is slid to the right,
zooming operation is executed towards the longest focal length, and when
it is slid to the left, zooming operation towards the shortest focal
length is executed.
The button 9 is a mode-select button. Each time this button is pressed, the
mode changes alternately from normal mode to remote control mode and vice
versa.
The unit 10 is a vertical rotation drive unit. This unit shifts the optical
axis of a photo-taking lens vertically when the camera is in the remote
control mode.
The unit 11 is a horizontal rotation drive unit. This unit moves the
optical axis of the photo-taking lens horizontally when the camera is in
the remote control mode.
The indicator 12 is an LED (light-emitting diode) indicator. This indicates
whether the remote control operator is within the angle of view of the
photo-taking lens when the camera is in the remote control mode.
FIG. 2 illustrates the remote controller 13, where (A) is a plane view, (B)
a front view and (C) a right side view. The remote controller 13 has an
operation button 14 on top and an infrared-emitting LED 15 partially
exposed on its front. Control signals sent to the camera for
remote-control operation are sent by infrared beam.
FIG. 3 shows the mechanism of the vertical rotation drive unit 10,
integrated in the camera body CA, and that of the detachable horizontal
rotation drive unit 11, which can be mounted to the vertical drive unit
10. FIG. 3(A) is a front sectional view, and (B) a plane view. FIG. 3(C)
is a sectional view of FIG. 3(A). In FIG. 3, the camera body CA is
supported by a movable vertical stand unit 10A. The lower frame of the
camera body CA is a movable member 17.
The vertical rotation drive unit 10 is equipped with a vertical rotation
driving motor M3 and reduction gears GV connected to the motor and an
encoder ENV. The encoder generates signals as illustrated in FIG. 12. All
of these components are fixed to the vertical stand unit 10A. The
reduction gears GV are connected to the moving gear GS of the moving
member 17. Through the rotation of the motor M3, the camera body CA
rotates in relation to the vertical stand unit 10A, which moves the
optical axis of the photo-taking lens 7 in a vertical fashion.
FIG. 4 plainly illustrates the moving mechanism. FIG. 4(a) is a plane view
of the movable member 17, 4(b) a front view, and 4(c) a right side view.
FIG. 4(d) shows a right side view of the vertical stand unit 10A and 4(e)
a right side view of the movable member 17 and the vertical stand unit 10A
in combination.
The movable member 17 has long holes 33 on its right and left flaps 31 and
32. The pins 34 on the vertical stand unit 10A go through these long holes
33. When the pins are placed in these holes, a plate 35 is attached to the
ends of the pins to prevent 10A and 17 from becoming separated. The bottom
parts of the movable member 17 and the vertical stand unit 10A are both
bow-shaped. In response to this, the long holes 33 are also bow-shaped.
When the movable member 17 moves in relation to the vertical stand unit
10A, its movement draws a bow-shaped curve. A center position of the
bow-shaped curve corresponds to approximately the center of gravity of the
camera body CA. Driving force for moving the movable member 17 is so weak
because the center of gravity of the camera does not move during the
moving period of the movable member 17.
FIG. 5 mainly illustrates the vertical rotation drive unit 10. FIG. 5(A) is
a plane view, (B) a side sectional view and (C) a front view. Here, the
driving gear GS is also bow-shaped and located under the right wall panel
17b of the movable member 17. 36 in FIG. 5(B) illustrates the pitch circle
of the driving gear GS.
FIG. 6 shows the encoder ENV, which detects vertical location. FIG. 6(A) is
a side sectional view and (B) a plane view. The encoder plate 37 is
attached to the left wall of the vertical stand unit 10A. The armatures 38
are attached to the inner side of the left wall plate 17a of the movable
member 17. There are four armatures 38a, 38b, 38c and 38d corresponding to
various patterns formed on the encoder plate 37. Specifically, 38b is for
grounding and 38a, 38c and 38d generate SUP, SVREF and SVPUL, respectively
as indicated in FIG. 12.
Returning to FIG. 3, the detachable horizontal rotation drive unit 11 is
attached to the camera body CA, which has an integrated vertical rotation
drive unit in the form described above. The horizontal rotation drive unit
11 has a convex-shaped unit 101 which fits into a concave-shaped unit 100
constructed in the aforementioned vertical rotation drive unit 10. This
structure reduces the thickness of the camera in vertical direction. The
rotating member 102 of the horizontal rotation drive unit 11 contains
connecting pins CODH and mount detection pin PDH. When the horizontal
rotation drive unit 11 is attached to the camera body CA, the connecting
pins CODH become connected to connectors COC at the bottom of the camera
body CA, and the pin PDH works on the mount detection switch SDR (See FIG.
11) and sets it in ON position.
The horizontal rotation drive unit 11 has a motor M4, reduction gears GH
connected to the motor, and an encoder ENH, which generates signals as
illustrated in FIG. 12.
The horizontal stand unit 11A comprises a horizontal stand unit 11A1 and
another horizontal stand unit 11A2. They are fastened at the sides and
separated at the center. On the horizontal stand unit 11A1 is placed the
motor M4, and the reduction gears GH are attached to the horizontal stand
unit 11A2. The rotating member 102 rotates horizontally in relation to the
horizontal stand unit 11A by operating the motor M4.
As illustrated in FIG. 7, there is a cylindrical member 22 protruding
downward at the middle of the rotating member 102. This cylindrical member
22 consists of a first cylindrical member 20 and a second cylindrical
member 21, which continues from the cylindrical member 20 but is slightly
smaller in diameter than it. There is a rotation gear GR at the outer
bottom circumference of the cylindrical member 20. This gear engages with
the aforementioned reduction gears GH. At the bottom surface of the
cylindrical member 21 there are screw holes 23. On the other hand, there
is another cylindrical member 24 protruding upward from the horizontal
stand unit 11A1. This cylindrical member 24 fits in with the
aforementioned cylindrical member 21.
The disc 26 with pierced-through holes 27 is inserted into the cylindrical
member 24 from the bottom of the horizontal stand unit 11A1, until it
comes in contact with the stepped-in 25. At this point, by applying screws
28 into the screw holes 23 of the cylindrical member 21 through the
pierced holes 27, the rotatable cylindrical member 21 is connected and
fixed to the cylindrical member 24. This means that the rotating member
102 has been fixed in a rotatable fashion to the horizontal stand unit
11A1. Therefore, when the horizontal rotation drive unit 11 is connected
to the vertical rotation drive unit 10 or the camera body CA, so that the
concave-shaped 100 and convex-shaped 101 are engaged, the camera body CA
supported by the rotating member 102 becomes rotatable in relation to the
horizontal stand unit 11A.
The encoder plate 29 of the encoder ENH is attached to the rotating member
102 as illustrated in FIG. 9. The armatures 30 are fixed to the horizontal
stand unit 11A2. The relation between the encoder plate 29 and the
armatures 30 is shown in FIG. 8. Various encoder patterns corresponding to
armatures 30a, 30b, 30c and 30d are formed on the encoder plate 29. The
armature 30b is for grounding. The armatures 30c, 30a and 30d generate
signals SLR, SHREF and SHPUL, respectively, as illustrated in FIG. 12.
A conceptual plan wherein the camera body CA is rotated in a horizontal
fashion, and one wherein the camera body CA is rotated in a vertical
fashion, based on the above-described structure by the remote controller
13, are shown in FIGS. 10(a) and 10(b), respectively. In these Figures,
the solid line camera body CA moves in the manner indicated by the dotted
line CA1 and the alternately dotted and dashed line CA2.
The block circuit diagram for the camera system contained in this
embodiment is illustrated in FIG. 11, as explained below. In this figure,
the micro-computer .mu.C controls operations including measurement of
light, distance and film advancing in accordance with the status of the
switches, as described below.
First, an explanation of each switch is given. SO is the main switch. When
this switch is ON, the camera is ready for operation, and when it is OFF,
the camera cannot operate.
S1 is a light and distance-measuring switch. This switch turns ON when the
release button 2 in FIG. 1 is pressed to the first stage.
S2 is a release switch. This switch turns ON when the release button is
pressed further to the second stage.
SMOD is a mode switch. This switches ON and OFF each time the mode-select
button 9 in FIG. 1 is pressed.
SZI is a zoom-in switch. This switch turns ON when the zoom lever 8 in FIG.
1 is slid to the right.
SZO is a zoom-out switch. This switch turns ON when the above zoom lever 8
is shifted to the left.
SDR is a mount detection switch. This switch turns ON when the horizontal
rotation drive unit 11 has been mounted to the camera body CA.
SVREF is a vertical reference switch. This turns ON when the camera body CA
is in a horizontal relationship to the ground.
SUD is an up/down detection switch. This turns ON when the camera body CA
is facing downward and turns OFF when it is facing upward.
SVPUL is a switch which alternately turns ON and OFF each time the camera
body CA moves 1 degree upward or downward. These switches SVREF, SUD and
SVPUL are located on the above-mentioned encoder ENV.
SHREF is a horizontal reference switch. It turns ON when the camera body CA
is at the initial position. In this embodiment, the initial position
refers to the central position, where there is no horizontal discrepancy
between the camera body CA and the horizontal stand unit 11A.
SLR is a right/left detection switch, which turns ON when the camera body
CA is facing right, and turns OFF when it is facing left.
SHPUL is a switch which alternately turns ON and OFF each time the camera
body CA moves 1 degree in a right-hand or left-hand direction.
These switches SHREF, SLR and SHPUL are located on the above-mentioned
encoder ENH and their status is detected by the micro-computer .mu.C
through the connecting pins CODH and connectors COC.
The signals generated by the above switches SVREF, SUD, SVPUL, SHREF, SLR
and SHPUL are shown in FIG. 12.
The zoom encoders ZENC0 to ZENC4 for the lens are explained later.
The AF/AE is a light/distance measuring block. It performs measurement of
light and distance by signals from the micro-computer .mu.C, and returns
the results to the micro-computer .mu.C.
The shutter block (SB) operates the lens autofocusing operations and
controls shutter exposure according to signals from the micro-computer
.mu.C.
Motor driver MDR1 is a driver to operate the zoom motor M1. It drives the
motor forward or backward, or executes braking or stopping operations, in
accordance with the output status (combination of "high" and "low") of MC1
and MC2 of the micro-computer .mu.C.
Motor driver MDR2 is a driver for the film advancing/rewinding motor M2 and
has the same controlling capacity as the motor driver MDR1, according to
the output status of MC3 and MC4 of the micro-computer .mu.C.
Motor driver MDR3 is a driver to operate the vertical rotation driving
motor M3, with the same controlling capacity as the motor driver MDR1,
according to the output status of MC5 and MC6 of the micro-computer .mu.C.
Motor driver MDR4 is a driver to operate the horizontal rotation driving
motor M4, with the same controlling capacity as the motor driver MDR1,
according to the output status of MC7 and MC8 of the micro-computer
LED 1 is the LED indicator 12 in FIG. 1, and is lit or extinguished by the
terminal LD1 of the micro-computer .mu.C.
When the position sensor device PSD receives remote control signals, the
detection circuit DCT calculates the relative angle between the optical
axis of lens 7 and the remote controller 13 at that time, and transmits
data regarding the angle to the micro-computer .mu.C.
LED 2 is an infrared LED to send remote control signals by infrared beam to
the camera, and is shown as 15 in FIG. 2. When the remote control switch
SREM is turned ON via the remote control button 14 (FIG. 2), LED 2 becomes
illuminated and sends signals to the camera body CA.
The communication between the detection circuit DCT and the micro-computer
.mu.C is explained in FIG. 13(a). The detection circuit DCT and the
micro-computer .mu.C are connected by four lines, SREQ, SCK, CS and SIN.
When the detection circuit DCT receives signals from the position sensor
device PSD activated by remote control signals, it changes the signal
level of the line SREQ to "low", and requests communication from the
micro-computer .mu.C. The micro-computer .mu.C, detecting the low level of
the line SREQ, changes the level of the line CS to "low". When it is
confirmed that the level of the line SREQ thereby changed to "high", an
8-bit clock is transmitted for serial communication. In a synchronized
fashion, the detection circuit DCT sends data on the camera angle
(right/left) to the micro-computer .mu.C. Following this process, the
micro-computer .mu.C transmits the 8-bit clock again. In response to this
transmission, the detection circuit DCT sends the data on the up/down
angle to the micro-computer .mu.C. Then the micro-computer .mu.C returns
the level of CS to "high". Through the above sequence, data on angles are
communicated.
Next, the above-mentioned 8-bit data is explained with FIGS. 13(b) and (c).
In case of data on the right/left angle (FIG. 13(b)), the 6 bits from b0
to b5 contain the information on the angle between the optical axis of the
lens and the remote controller. The minimum unit is 1 degree. b6 is not
used, and b7 provides information on whether the remote controller 13 is
located to the right or the left in relation to the optical axis. For
example, when the remote controller 13 is located at a 45-degree angle to
the right facing the camera, the data on the right/left angle will read
0*101101 (*="Disregard"). The same principle holds true regarding data on
the up/down angle (FIG. 13(c)).
Next, the operation of this embodiment is explained below in the flow chats
contained in FIGS. 14 to 19.
FIG. 14 is a flow chart of the main routine. When a battery is placed in
the camera body CA, reset of the drive unit is performed in Step #1. Reset
of the drive unit means to return the vertical rotation drive unit 10 and
the horizontal rotation drive unit 11 to the initial position. In other
words, this is an operation to return the camera body CA to the position
where there is no discrepancy between the camera body CA and the
horizontal stand unit 11A (hereinafter referred as "center position") as
well as between the camera body CA and the vertical stand unit 10A
(hereinafter referred to as "horizontal position").
Then the process advances to Step #2, where it is determined whether the
main switch SO is ON. If it is ON, the process advances to Step #3. If it
is OFF, the operation in Step #2 is repeated until switch SO is turned ON.
In Step #3, whether the light/distance-measuring switch S1 is ON or OFF is
determined. If it is ON, the process advances to the S1-ON routine in Step
#15. This routine is explained later. If the switch S1 is OFF, the process
advances to Step #4, and it is determined whether the mode switch SMOD is
ON or OFF. If it is OFF, the process advances to Step #8. If it is ON, the
process advances to Step #5 and it is determined whether the camera is in
remote control mode or normal mode.
If it is in normal mode, the process advances to Step #6 and the camera is
set in remote control mode. If it is in remote control mode, the process
advances to Step #7 and the camera is set in normal mode, and then the
process advances to Step #8. Namely, each time the mode switch SMOD is
turned ON, the mode setting alternately changes from normal to remote
control, and vice versa.
In Step #8, it is determined whether the zoom-in switch SZI is ON or OFF.
If it is ON, the process advances to the SZI-ON routine of Step #16. If it
is OFF, the process advances to Step #9.
In Step #9, it is determined whether the zoom-out switch SZO is ON or OFF.
If it is ON, the process advances to the SZO-ON routine of Step #17. If it
is OFF, the process advances to Step #10 and it is determined whether or
not the camera is in remote control mode.
If it is not in remote control mode, i.e., if it is in normal mode, the
process returns to Step #2 and the above operation is repeated. If it is
in remote control mode, the status of line SREQ is transmitted, and if it
is "high", the process goes back to Step #2. If the status of line SREQ is
"low", namely, if the position sensor device PSD has received the remote
control signals, the process advances to the remote control routine of
Step #18.
Next, FIG. 15 is a flow chart of steps to return the drive unit to the
initial position (a sub-routine of Step #1 in FIG. 14). First, in Step
#21, in accordance with the ON/OFF status of the vertical reference switch
SVREF, it is determined whether the camera body CA is in the horizontal
position. If it is not, the process advances to Step #23. There, in
accordance with the ON/OFF status of the up/down detection switch SUD, it
is determined whether the camera is facing upward or downward. The
direction of rotation of the motor M3 is controlled by this determination,
and the motor rotates forward or backward accordingly (Steps #24, #25).
Then Step #21 and the subsequent steps described above are repeated. After
that, when the camera body CA is in horizontal position and the vertical
reference switch SVREF is ON, the process advances from Step #21 to Step
#22, and stops the motor M3. In Step #31, if the horizontal rotation drive
unit 11 is not mounted, the process goes back to the main routine. If it
is mounted, the process advances to Step #26 and resets the horizontal
rotation drive unit 11 to the initial position. This operation is
performed in the same manner as in the case of the above-mentioned
vertical rotation drive unit 10. Namely, in Step #26, depending on the
ON/OFF status of the horizontal reference switch SHREF, it is determined
whether or not the camera body CA is in the center position. If it is not
in the center position, the process goes on to Step #28, and it is
determined in accordance with the ON/OFF status of the right/left
detection switch SLR whether the camera body CA is facing right or left.
The direction of rotation of the motor M4 is thus determined and the motor
rotates forward or backward accordingly (Step #29 or #30). Then, the
process returns to Step #26 and the operation is repeated. After that,
when the camera body CA returns to the center position and the horizontal
reference switch SHREF is ON, the process advances from Step #26 to Step
#27, stops the motor M4 and returns to the main routine.
FIGS. 16(a) and (b) are flow charts of the SZI-ON routine and SZO-ON
routine which drive the zoom lens. These processes are begun by
manipulating the zoom lever 8, which turns on the zoom-in switch SZI or
the zoom-out switch SZO. FIG. 16(a) is a flow chart for when the zoom-in
switch SZI is ON. First, in Step #81, it is determined whether or not the
zoom-in switch SZI is still ON. If it is ON, it is determined in Step #82
whether or not the zoom lens is at the longest focal length. If it is not,
the process advances to Step #83 and the zoom motor M2 is rotated forward
to move the lens towards the longest focal length. Then the process
returns to Step #81 and the above operation is repeated.
When the zoom-in switch SZI becomes set to OFF in Step #81, or when it is
determined that the lens is at the longest focal length in Step #82, the
process advances to Step #84, stops the zoom motor M2, and returns to the
main routine in FIG. 14.
FIG. 16(b) is a flow chart for when the zoom-out switch SZIO is ON. The
operation is the same as in the case of a zoom-in.
FIG. 17 is a flow chart for light and distance measurement and shutter
release. When it is determined that the switch S1 is ON in the main
routine, measurement of light and distance is executed in Step #51 by the
aforementioned AF/AE block. Then in Step #52, it is determined whether or
not the release switch S2 is ON. If it is OFF, the process advances to
Step #53 and it is determined whether or not the light/distance measuring
switch S1 is ON. If it is ON, the process advances to Step #54. If it is
OFF, it returns to the main routine.
In Step #54, it is determined whether or not the main switch SO is ON. If
it is ON, the process returns to Step #52 and the above process is
repeated. If it is OFF, the process returns to the main routine.
When the release switch S2 is determined to be ON in Step #52, the process
goes on to Step #55. The S2-ON sub-routine is called. In the S2-ON
sub-routine described in FIG. 17(B), the following procedures are
executed: lens operation for autofocusing (#56), exposure release sequence
(#57), lens reset (#58) and film advancing (#59). And the process goes
back to Step #1 of the main routine.
In the above-described light and distance measurement, the data on distance
is expressed in a prescribed zone number. The relationship between the
distance to the subject and focus position is shown in FIG. 18. In this
embodiment, an appropriate focus position corresponding to the distance
measurement carried out by the AF/AE block is determined, and the lens is
moved in accordance with this focus position determination.
FIG. 19 is a flow chart for operation in remote control mode. In remote
control mode, when the detection circuit DCT receives infrared si | | |
