JPH0157721U - - Google Patents

Description

[Brief explanation of drawings]

Fig. 1 shows an example of screen division, Fig. 2a shows the photoelectric output distribution, Fig. 2b shows the film surface illuminance distribution, Fig. 3 is a block diagram of a conventional multi-photometer, and Fig. 4 shows the photoelectric output distribution. A block diagram of the multi-photometering device according to the present invention. Fig. 5 shows the need for correction based on the aperture diameter, Fig. 6 shows the need for correction based on the shooting aperture diameter, and Fig. 7 shows the need for correction based on the aperture diameter. A diagram showing the need for correction due to differences in optical systems, Figure 8 is a diagram showing how to summarize correction values, Figure 9 is another block diagram of the multi-photometering device according to the present invention, and Figure 10 is according to the present invention. 11 is a diagram showing a correction value curve, and FIG. 12 is a diagram showing an example of an optical receiving system. Explanation of symbols of main parts, correction value calculation circuit...8
, correction calculation circuit...7.

Amendment October 7, 1983 The scope of claims for utility model registration is amended as follows.

[Claims for Utility Model Registration] 1. A method for dividing a photographic screen into a central region and a plurality of peripheral regions located around the central region, performing photometry, and obtaining photometric outputs for each of the central region and the plurality of peripheral regions. and a second means for obtaining exposure information output for exposure control or exposure display based on each photometric output regarding the central area and the plurality of peripheral areas output by the first means. In the photometry device, a correction information output means for generating representative correction information output regarding a plurality of peripheral areas located at approximately symmetrical positions within a photographic screen based on information from a photographic lens attached to the camera; In order to correspond to the film surface illuminance after aperture control,
a correction means for correcting photometric outputs regarding the plurality of peripheral areas located at substantially symmetrical positions using the representative correction information output; and the second means corrects photometric outputs regarding the central area and the correction means. A multi-photometering device characterized in that an exposure information output is obtained based on a plurality of photometering outputs related to the peripheral area that have been corrected accordingly. 2. The multi-photometry system according to claim 1, wherein the correction information output means introduces information regarding the maximum aperture value of the photographic lens as information from the photographic lens attached to the camera. Device. 3. A utility model registration request characterized in that the correction information output means introduces information regarding the number of stops from the maximum aperture value to the photographic aperture value of the photographic lens as information from the photographic lens attached to the camera. A multi-photometering device according to scope 1. 4. The multi-photometering device according to claim 1, wherein the correction information output means introduces information regarding the focal length of the photographic lens attached to the camera as information from the photographic lens attached to the camera. . 5. The multi-photometry system according to claim 1, wherein the correction information output means introduces information regarding the exit pupil distance of the photographic lens as information from the photographic lens attached to the camera. Device.

Claims (1)

[Claims for Utility Model Registration] 1. A first means for obtaining a plurality of divided photometry outputs corresponding to the brightness of each of the divided screens formed by dividing the screen into a plurality of parts, and an exposure method based on the plurality of divided photometry outputs. and a second means for obtaining exposure information output for use in control or exposure display, wherein the split screen is located at approximately symmetrical positions within the screen based on information from a photographic lens attached to the camera. a correction information output means that outputs a representative correction information output; and a correction information output means that outputs divided photometry outputs corresponding to the divided screens located at substantially symmetrical positions to the representative correction information output in a manner corresponding to the film surface illuminance distribution. and a correction means for correcting the exposure information output based on the plurality of divided photometry outputs corrected by the correction means so as to correspond to the film surface illuminance distribution. A multi-photometering device featuring: 2. Utility model registration claim 1, characterized in that the correction information output by the correction information output means is information regarding the maximum aperture value of the photographic lens as information from the photographic lens attached to the camera. The multi-photometering device described. 3. A utility model characterized in that the correction information output by the correction information output means is information about the number of aperture steps from the maximum aperture value to the photographic aperture value of the photographic lens, as information from the photographic lens attached to the camera. A multi-photometering device according to claim 1. 4. A utility model according to claim 1, wherein the correction information output of the correction information output means is information regarding the focal length of the photographic lens as information from the photographic lens attached to the camera. Multi-photometering device. 5. Utility model registration claim 1, characterized in that the correction information output of the correction information output means is information regarding the exit pupil distance of the photographic lens as information from the photographic lens attached to the camera. Multi-photometering device.