Exposure display device for a single lens reflex camera

Details Exposure display device for a single lens reflex camera Exposure display device for a single lens reflex camera

1975-09-12

1977-09-27

Adams, Russell E.

354 39, 354 53, 354 57, 354 60L, 354 61, G03B 1700, G03B 1720

Patent

active

040515036

ABSTRACT:
An exposure display device for a single lens reflex camera including light display elements for displaying either shutter speed or diaphragm value is disclosed. Nominal values representing either shutter speed or diaphragm value are marked on a glass plate disposed in the vicinity of the focusing plate of the camera's viewfinder. A first display section, comprising a first set of light display elements aligned with (and, if desired, located inbetween) the nominal values, creates a first exposure component (e.g. diaphragm value or shutter speed) display whose value is related to predetermined exposure conditions, such as object brightness, film sensitivity and the other exposure component (e.g. shutter speed or diaphragm value). A second display section, comprising a second set of light display elements, also aligned with the nominal values, creates a second display of the exposure component chosen to be displayed. The second display represents the actual position of the camera element controlling the displayed exposure component.

REFERENCES:
patent: 2948259 (1960-08-01), Frost et al.
patent: 3289025 (1966-11-01), Bullinger
patent: 3700337 (1972-10-01), Fujii et al.
patent: 3727527 (1973-04-01), Borowski et al.
patent: 3812503 (1974-05-01), Engelsmann et al.
patent: 3818495 (1974-06-01), Sagara et al.
patent: 3820132 (1974-06-01), Lindner
patent: 3835465 (1974-09-01), Tannas, Jr. et al.
patent: 3868704 (1975-02-01), Yamoda et al.
patent: 3895875 (1975-07-01), Kitaura et al.

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