JPH03263020A - Automatic focusing camera provided with remote control function - Google Patents

Abstract

PURPOSE:To move the position of a remote control transmitter-receiver with reference to a camera main body in a wide range by changing the posture of the camera so that the position of an object with reference to a photographing frame may be arranged according to data for remote control. CONSTITUTION:A light receiving sensor which receives plural signal light beams for range-finding and signal light beams for remote control is provided, and the signal light beams for remote control and the signal light beams for range- finding received by the light receiving sensor are detected and integrated by detection and integration means DT1 - DT6. Then, framing is performed by a framing signal output means 11 which changes the posture of the camera so that the position of the object with reference to the photographing frame may be arranged according to the data for remote control obtained from the signal light beam for remote control. Thus, the automatic focusing camera provided with the remote control function that the position of the remote control transmitter-receiver moves with reference to the camera main body in the considerably wide range is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an autofocus camera with a remote control function, and particularly relates to an autofocus camera with a remote control function that can remotely control the position of a subject relative to a photographing frame.

[Prior art and problems to be solved by the invention] A conventional autofocus camera with a remote control function is disclosed in Utility Application No. 1-88909.
No. (filed on July 28, 1991) Autofocus camera with remote control function As shown in Autofocus camera with remote control function, the autofocus camera with remote control function is equipped with an AP beam for autofocus and a remote control beam sent from a remote control transmitter to the camera body. Signal processing for the remote control beam system has a wide acceptance angle and no restrictions on signal processing time, while signal processing for the AF beam system has a reception angle as narrow as possible and allows multiple remote control beams to correspond to the position of the subject. When projected with a total of 500 m s ~ 8
Since the signal processing time is about 00 m s, the signal processing time cannot be ignored in relation to the shutter chance.Especially, the signal method of the AF remote control beam in the AF beam system There are detection methods, and both have advantages and disadvantages in terms of advantages against external noise and design conditions of the signal processing circuit, and in this respect, different design conditions are required from remote control beams.

As mentioned above, the conventional autofocus camera with remote control function is
Although there are some hints about the signal processing of the F beam and the remote control beam, there is no disclosure of technology for appropriately implementing the new function given to the remote control beam for remotely controlling the position of the subject relative to the shooting frame. There is a drawback.

[Object of the Invention] The present invention has been made in view of the above-mentioned difficulties, and includes a light receiving sensor that receives a plurality of ranging signal lights and a remote control signal light, and a light receiving sensor that receives a plurality of distance measurement signal lights and a remote control signal light and a remote control signal light received by the light receiving sensor. The distance signal light is detected and integrated, and the position of the subject relative to the photographing frame is determined by the remote controller data obtained from the remote control signal light, and the camera attitude is changed using the framing signal output means. The purpose of the present invention is to provide an autofocus camera with a remote control function whose position can be moved over a fairly wide range.

Another object of the present invention is to provide an autofocus camera with a remote control function that is resistant to disturbance noise and ensures reliable photographing operation by being equipped with a light receiving sensor that receives a plurality of distance measuring modulated lights and a remote control modulated light.

Also, when a framing signal is output from the framing signal means, whether the output framing signal is in the center or
It is an object of the present invention to provide an autofocus camera with a remote control function that allows normal operation to be confirmed from the position of a remote control handset by providing a display means for displaying left and right divisions.

[Means for Solving 3M] The autofocus camera with a remote control function according to the present invention includes a ranging signal light projecting means for projecting a plurality of ranging signal lights to a central subject and surrounding subjects; a light-receiving sensor that receives the distance-measuring signal light reflected by at least some of the objects, and sends the same distance-measuring signal light as the distance-measuring signal light to the light-receiving sensor as remote control signal light. a remote control transmitter for detecting and integrating the remote control signal light and the distance measurement signal light received by the light receiving sensor and outputting remote control data and distance measurement data; It is comprised of a framing signal output means for changing the camera attitude to position the subject based on the remote control data, and a focus signal means for outputting a focus signal based on the distance measurement data.

Further, the autofocus camera with a remote control function according to the present invention includes a distance measuring modulated light projecting means for projecting different distance measuring modulated light to a central subject and surrounding subjects, and at least some of the subjects. a light-receiving sensor that receives the specific distance-measuring modulated light reflected by the light-receiving sensor, and selects a distance-measuring modulated light that is the same as one of the specific distance-measuring modulated lights and sends it to the light-receiving sensor as remote control modulated light. a remote control transmitter, a detection and integration means for detecting and integrating the remote control modulated light and the ranging modulated light received by the light receiving sensor and outputting remote control data and ranging data;
It is comprised of a framing signal output means for changing the camera attitude to position the subject relative to the photographing frame according to the remote control data, and a focusing signal output signal for outputting a focusing signal according to the distance measurement data.

Further, it comprises a framing signal display means for displaying the framing signal outputted from the framing output means.

[Embodiment] Hereinafter, an embodiment of an autofocus camera with a remote control function according to the present invention will be described in detail with reference to the drawings.

In the figure, 14 is a remote control transmitter. The remote control transmitter 14 is composed of a framing beam sending circuit M15 and right, center, and left framing switches SR, SC, and SL, each of which has one end connected to a reference potential point.
When R, SC, and SL are operated, a right peripheral framing beam Ff1, a center framing beam Ff2, and a left peripheral framing beam Ff3 are projected from the framing beam sending lens 15a of the framing beam sending circuit M15 to the light receiving lens LNS2, which will be described later.

The modulated light projecting means for photometry is a light emitting diode drive circuit #1. It is composed of a multiplex modulation circuit 2, and a light emitting diode drive circuit 1.
The multiplex modulated beam FM multiplexed and modulated by the multiplex modulation circuit 2 controlled by the synchronous control circuit 3 is simultaneously transmitted from the light emitting diodes D1, D2, and D3 provided in the light emitting diode device LED to the right peripheral multiplexed modulated beam f1, the center A multiplexed modulated beam f2 and a left peripheral multiplexed modulated beam f3 are projected onto the subject via the projection lens LNS1. Center, left, and right multiplexed modulated beams f2, f3, f, reflected by the object and incident on the light receiving element PSD via the light receiving lens LNS2,
is connected to the active filter AFn (n=1.2.3 is the right channel C
I,, n=3.4.5 is the terminal T of the left channel CH2)
,... are input. The active filter AFn sends out the light reception signal input to the terminal T, via the resistor R1 and the capacitor C3, to the (=) input side of the operational amplifier Q, whose (+) input side is connected to the reference potential point. The output side of the active filter AFn is connected to the other end of a resistor R3 whose one end is connected to the (-) input side, and the other end of the resistor R2 whose one end is connected to the reference potential point is connected to the connection point between the resistor R1 and the capacitor C3. The other end of the capacitor C2 is connected to the other end of the capacitor C2, one end of which is connected to the other end of the resistor R3.

Connection position, capacitance and resistance R of capacitors C2 and C3
Active filter AF depending on the resistance values of 1, R2, and R3.
n has the function of a bandpass filter.

The output side of the active filter AFn is a detection and integration circuit DT.
n (n is 1 to 6 and corresponds to the subscript of AFn) is connected to the (+) input side of the operational amplifier Q2, and the output side of the operational amplifier Q2 is connected through one end of the resistor R4 forming an integrating circuit. One end of the capacitor C4 is connected to the reference potential point, and the other end of the capacitor C4 is connected to the terminal T2.

The output side of operational amplifier Q2 is connected to the (-) input side, and operational amplifier Q2 has a voltage follower function and terminals T3 and
. . . Under the control of the synchronous control circuit 3, synchronous detection is performed.

Detection, integration circuit DT, and DT4, DT2 and DT5, DT
The outputs of 3 and DT6 are sent from the arithmetic circuit 4.5.6 to the CPU as center, right, and left distance data FC2, Fe2, and FCl.
Sent to 16. CPU16 is manually operated center and left,
The right distance data FC2, Fe2, and FCl are calculated, and a focusing signal corresponding to the center, left, and right distance data FC2, Fe2, and FCl is sent to the focusing signal generation circuit 7. The focusing signal generation circuit 7 generates a lens drive circuit 7a using a manually generated focusing signal.
The lens 8a of the lens barrel 8 is driven through the lens 8a.

In addition, the above-mentioned right peripheral framing beam Ff, center framing beam Ff2, left peripheral framing beam F
When f3 is received by the light receiving lens LNS2, the right framing data F is sent from the arithmetic circuit 4.5.6 to the CPU 16.
F1, transmits center framing data FF2 or left framing data FF3. The CPU 16 controls the remote control control circuit 10 according to the manually inputted right framing data FF1, center framing data FF, or left framing data FFa. The remote control control circuit 10 controls the release circuit 12 according to the conditions set by the remote control remote setting circuit 9, and also controls the camera housing rotation signal generation circuit 11 to output a framing signal according to the control of the CPU 16.

The camera housing rotation signal generation circuit 11 outputs the determined framing signal, and when the camera housing rotates, the camera housing rotation signal generation circuit 11 outputs the determined framing signal to the fort diode 1 via the framing display circuit 13.
3a blinks, and the classification of the framing signal is displayed by the blinking period.

[Operation of the invention] In the automatic focusing camera with remote control function configured as above, the AF beam projected from the projection lens LNS is a right peripheral multiplexed modulated beam f, a center multiplexed modulated beam f2, and a left peripheral multiplexed modulated beam f3. When the distance measurement signal light is not, the remote control transmitter 1
The modulation methods of the right peripheral framing beam Ff1, the center framing beam Ff2, and the left peripheral framing beam Ff projected from 4 to the light receiving lens LNS2 are also fl and f2.
, f3, it is possible to use remote control signal light that does not have positional identifiability different from that of f3.

When the AF beam projected from the projection lens LNS is a right peripheral multiplexed modulated beam f1, a center multiplexed modulated beam f2, and a left peripheral multiplexed modulated beam f3, the remote control transmitter 1
The right peripheral framing beam Ff, the center framing beam Ff2, and the left peripheral framing beam Ff3 output from the framing beam transmitting lens 15a of the framing beam transmitting circuit 15 of No. 4 are multiplexed modulated beams for ranging ft,
The same modulated light for remote control as f2 and f3 is used.

When the subject of the set image frame is on the right side, pressing the right framing switch SR of the remote control transmitter 14 will project the right peripheral framing beam Ff1 from the framing beam sending lens 15& of the framing beam sending circuit 15 to the light receiving lens LNS2. From arithmetic circuit 4 to CPU 16
The right framing data FF is sent to the right framing data FF. CPU16
receives the right framing data FF, and controls the remote control control circuit 10 in accordance with the right framing data FF. Since the remote control setting circuit 10 knows that the image frame of the subject preset by the remote control mode setting circuit 9 is on the right side, the framing signal output from the camera housing signal generation circuit g611 will be "no change". . The framing display circuit 13 blinks at a relatively long period to notify that the subject is on the right side of the image frame. When the left framing switch SL of the remote control transmitter 14 is subsequently operated, the left peripheral framing beam Ff3 is sent to the light receiving lens LNS2.
The second shutter sequence is executed. In this case, the left framing signal FF3 is sent to the arithmetic circuit 6 or CPU 16, so that the camera housing is rotated to the right with respect to the imaging surface so that the left subject is placed on the right side of the preset subject image frame. A framing signal instructing "Turn to the right" is output from the camera housing signal generation circuit Ws11. The framing display circuit 13 blinks the light emitting diode 13a at the fastest cycle to indicate that the rotation angle of the camera housing is at its maximum.

[Effects of the Invention] The autofocus camera with a remote control function according to the present invention includes a distance measuring signal light projecting means for projecting a plurality of distance measuring signal lights to a central subject and surrounding subjects; a light-receiving sensor that receives the distance-measuring signal light reflected by an object of at least -115, and a remote-control transmitter that sends the same distance-measuring signal light as the distance-measuring signal light to the light-receiving sensor as a remote control signal light. a detection and integration means for detecting and integrating the remote control signal light and the distance measurement signal light received by the light receiving sensor and outputting remote control data and distance measurement data; It is composed of a framing signal output means for changing the camera posture according to the remote control data, and a focusing signal means for outputting a focusing signal according to the distance measurement data, so that the remote control handset is not connected to the camera body. It has the effect of allowing you to move your position over a fairly wide range.

Further, a distance measuring modulated light projecting means for projecting different distance measuring modulated light to a central subject and surrounding subjects; and a distance measuring modulated light reflecting from at least some of the subjects. a remote control transmitter that selects the same distance measuring modulated light as one of the different distance measuring modulated lights and sends it to the light receiving sensor as remote control modulated light; detection and integration means for detecting and integrating the modulated light for the remote control and the modulated light for distance measurement and outputting remote control data and distance measurement data; Since it is composed of a framing signal output means for changing the camera posture as desired, and a focus signal output signal for outputting a focus signal based on the distance measurement data, it is resistant to disturbance noise and has the effect of ensuring reliable shooting operation. There is.

Furthermore, when a framing signal display means for displaying the framing signal output from the framing output means is provided, there is an effect that the rotation direction of the camera body can be confirmed from the position of the remote control handset.

[Brief explanation of drawings]

The figure is a block diagram of an autofocus camera with remote control function according to the present invention. (Light projecting means for photometry) 2... Multiplexing modulation circuit (Modulation light projecting means for photometry) 11... Camera housing signal generation circuit (Framing signal output means) 13... ...Framing display circuit (display means) 1
4...Remote control transmitter DTn...Detection, integration circuit (synchronous detection means) or higher

Claims (1)

[Scope of Claims] 1. Distance measurement signal light projecting means for projecting a plurality of distance measurement signal lights to a central subject and surrounding subjects; a light-receiving sensor that receives the distance-measuring signal light; a remote-control transmitter that sends the same distance-measuring signal light as the distance-measuring signal light to the light-receiving sensor as a remote-control signal light; a detection and integration means for detecting and integrating the remote control signal light and the distance measurement signal light and outputting remote control data and distance measurement data; An autofocus camera with a remote control function, comprising: a framing signal output means for changing the camera attitude; and a focus signal means for outputting a focus signal based on the distance measurement data. 2. A distance measuring modulated light projecting means for projecting different distance measuring modulated light to a central subject and surrounding subjects; and a distance measuring modulated light reflected by at least some of the subjects. a light-receiving sensor that receives the light, a remote control transmitter that selects the same distance-measuring modulated light as one of the different distance-measuring modulated lights and sends it to the light-receiving sensor as a remote-control modulated light; a detection and integration means for detecting and integrating the remote control modulated light and the different distance measurement modulated light and outputting remote control data and distance measurement data; An autofocus camera with a remote control function, comprising: a framing signal output means for changing the camera attitude; and a focus signal output signal for outputting a focus signal based on the distance measurement data. 3. The autofocus camera with a remote control function according to claim 2, further comprising a framing signal display means for displaying the framing signal output from the framing output means.