JP2899006B2 - camera - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera capable of eliminating an adverse effect due to disturbance optical noise.

[Related Art] Conventionally, for example, a remote control device emits infrared pulse light having specific information, and a main device that receives the light has a
It is configured to operate according to the light information.

[Problems to be Solved by the Invention] However, in recent cameras, especially floppy cameras, photoelectric conversion elements such as a colorimetric sensor, a photometric sensor, a distance measuring sensor, a dimming sensor, an image sensor, and a remote control light-receiving sensor are often used. Therefore, there is a disadvantage that these elements malfunction or are erroneously measured due to disturbance light.

When remote control light, AF light of another camera, strobe light, remote control light, etc. are received by each sensor while each sensor is measuring these subject conditions, distance measurement, photometry, and color measurement are erroneously measured. There is a drawback, and when the above-mentioned light is received by the image sensor during shooting, there is a drawback that the shot image is spoiled even if the distance measurement, the light measurement, and the color measurement are correctly performed. .

[Means for Solving the Problem] A camera according to the present invention includes a detecting unit for detecting light from a light-emitting remote controller, and at least one of photometry and colorimetry when the detecting unit does not detect light from the remote controller. And control means for controlling not to execute the measurement operation when the light from the remote controller is detected by the detection means.

(Operation) As a result, it is possible to obtain a measurement value that avoids disturbance due to light that is harmful to photometry and color measurement such as light from a remote controller, and it is possible to perform shooting without failure.

Embodiment FIG. 1 shows a configuration example of the present invention.

1 is a remote control device (remote control), 2 is a camera body, 3
Denotes a remote control light receiving unit, 4 denotes a photographing lens, 5 denotes an image sensor, 6
Is a signal processing circuit, 7 is a recording circuit, 8 is a magnetic recording head,
9 is a video floppy as a recording medium, 10 is a motor for rotating the floppy 9, 11 is a distance measuring device that measures the distance to the subject by using, for example, infrared rays, 12 is a photometric device that measures the brightness of the subject, and 13 is the subject. A colorimeter that measures the color temperature of light, 14 is a light control device that performs flash light control during flash photography, 15 is a flash, 16 is an overall controller that controls the entire camera body, and 17 is a remote control that is closed. And a display device 18 for performing various displays using a light emitting diode, a liquid crystal or the like.

Next, FIG. 2 shows a flowchart of the present invention. First, in S1, the remote control wait state switch 17 is closed to check whether the main body is in the remote control wait state.If the remote control wait state is in progress, proceed to S3, otherwise proceed to S2, in S2, The normal photographing process in the case where the remote controller is not in the waiting state is performed, and the process returns to S1. Next, if a remote control signal is received in S3, the process proceeds to S5, otherwise, the process proceeds to S4, and photometry and colorimetry are performed in S4.
Return to S3. Next, if the light receiving signal is a photographing instruction signal in S5, the process proceeds to S7, and if it is another instruction signal, the process proceeds to S6. In S6, a process according to the instruction signal is performed, and the process returns to S3. Next, in S7, the photographing signal is received, the light emitting diode of the display device blinks to notify the photographer that the photographing mode has been set, and the process proceeds to S8 as N = n (n is a natural number). If a remote control signal is received in S8, the process proceeds to S9, and if not, the process proceeds to S11. Next, in S9, after waiting for X _ms (set to about nx _ms = 2 _s ), N = N−1
And proceed to S10. If N = 0 in S10, the process proceeds to S16, and if N ≠ 0, the process returns to S8. If no remote control signal is received in S8, distance measurement is performed in S11 and the process proceeds to S12. In S12, photometry and colorimetry are performed.
Proceed to S13. Then, after waiting for X _ms in S13, N = N
Perform -1 and proceed to S14. If N = 0 in S14, the process proceeds to S19, and if N ≠ 0, the process proceeds to S15. Then, in S15, if a remote control signal is received, the process returns to S13, and if not, the process returns to S12.

Next, in S16, if photometry and colorimetry have been performed in S4, the flow proceeds to S17, and if not, the flow proceeds to S18. Next, S1
In step 7, the aperture value is determined from the photometry result in step S4. If the aperture can be narrowed down to the point where the entire field is in focus, the process proceeds to step S19; otherwise, the process proceeds to step S18. Next, in step S19, if a strobe is required from the latest photometry result, the process proceeds to step S21, and if not, the process proceeds to step S20. Then, in S20, normal photographing without using a flash is performed, the light emitting diode is turned off, and END is set. In step S21, flash photography is performed, the light emitting diode is turned off, and the state becomes END. In step S18, the light emitting diode is turned on to notify the photographer that photographing is impossible. In the present embodiment, if the remote control light is received immediately during the distance measurement, the light measurement, and the color measurement, the measurement is regarded as a failure and is not performed. Also, in the case of the attached remote controller, it is possible to determine whether or not it has been affected even in the case immediately after.

In the present embodiment, an example of an electronic still camera has been described, but it is needless to say that the present invention can be applied to a silver halide camera.

[Other Embodiments] As a second embodiment, a remote control light from another during measurement,
Similarly, when AF sensor, strobe light, etc. are detected by each sensor, distance measurement, photometry, colorimetry are redone, use the measured value when there is no effect, or notify the photographer that measurement is not possible And the like. In that case, the remote control light receiving unit 3 can detect remote control light and AF light of several frequencies, and other strobe light may be detected by a dedicated detector, or may be detected by the photometric device 12 or the light control device. 14 may be detected.

As a third embodiment, if the light that interferes with the measurement is signal light from the attached remote controller or light from another remote controller or AF, and the emission timing can be predicted, the light may be transmitted even in the middle of the signal. Photometry and colorimetry may be performed synchronously immediately after it is turned off and turned off, and the measurement may be prohibited immediately before it is turned on and turned on.

 By doing so, no time is wasted.

[Effects of the Invention] As described above, the camera according to the present invention includes a detecting unit that detects light from a light-emitting type remote controller, and a light meter and a colorimeter when the detecting unit does not detect light from the remote controller. Control means for controlling to execute at least one measurement operation, and controlling not to execute the measurement operation when the light from the remote control is detected by the detection means. As described above, it is possible to obtain a measurement value in which disturbance due to light harmful to photometry and color measurement is avoided, and it is possible to perform shooting without failure.

[Brief description of the drawings]

 FIG. 1 is a configuration diagram of an embodiment of the present invention. FIG. 2 is a flowchart of an embodiment of the present invention.

Continuation of the front page (51) Int.Cl. ⁶ identification symbol FI H04N 5/235 H04N 9/04 B 9/04 G03B 3/00 A (58) Field surveyed (Int.Cl. ⁶ , DB name) H04N 5 / 232 H04N 5/235 H04N 9/04 G03B 17/56 G03B 7/08 G03B 13/36

Claims (4)

(57) [Claims] 1. A detecting means for detecting light from a light-emitting type remote control, and controlling so as to execute at least one of light measuring and color measuring when the detecting means does not detect light from the remote control. And a control means for controlling not to execute the measurement operation when the light from the remote controller is detected by the detection means. 2. The camera according to claim 1, wherein said control means controls so as not to execute a distance measuring operation when light from said remote controller is detected by said detection means. 3. The camera according to claim 1, wherein when the light from the remote controller is detected by the detection means, the measurement information immediately before the detection is used. 4. The camera according to claim 1, wherein said control means controls not to execute said measurement operation even when said detection means detects disturbance light other than light from said remote controller.