Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1975-11-26
1977-06-07
Adams, Russell E.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340324R, 354 53, 354 60L, 356226, G03B 1720
Patent
active
040287122
ABSTRACT:
A display system for a camera of the type having shutter preselection and diaphragm preselection automatic exposure control modes which are selectively operative by a switch is provided with a single array of decimal digit display elements for displaying the numerical values of the preselected shutter speed or diaphragm aperture and of the computed result representing the effective aperture or exposure time respectively at a time in combination with control means cooperative with the mode select switch for controlling relative display arrangement of the numerical values and/or display color change, thereby it being made possible for the photographer looking the display to insure that the camera operates in the intentionally selected exposure control mode.
REFERENCES:
patent: 3755806 (1973-08-01), Bunting
patent: 3909137 (1975-09-01), Kisanuki
patent: 3971048 (1976-07-01), Ito et al.
Ito Fumio
Ito Tadashi
Kawamura Masaharu
Murakami Hiroyashu
Sakurada Nobuaki
Adams Russell E.
Kanon Kabushiki Kaisha
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