Source: https://patents.google.com/patent/US4639113
Timestamp: 2018-02-23 03:23:50
Document Index: 299699545

Matched Legal Cases: ['art 4', 'arts 5', 'arts 9', 'arts 14', 'art 16', 'art 20', 'art 20', 'art 20', 'arts 14', 'art 20']

US4639113A - Camera display device - Google Patents
Camera display device
US4639113A
US4639113A US06782104 US78210485A US4639113A US 4639113 A US4639113 A US 4639113A US 06782104 US06782104 US 06782104 US 78210485 A US78210485 A US 78210485A US 4639113 A US4639113 A US 4639113A
US06782104
FIG. 6 shows a display state in the M mode. The display part 4 displays letter M, and a shutter speed "125" manually preset by a shutter speed selector (not shown) is displayed in the display parts 5 to 7. In the M mode, the display parts 9 to 13 are always selectively turned on to indicate an underexposure or overexposure. Of the display parts 14 to 26, parts between a part (the part 16 in FIG. 6) representing a deviation from the optimal exposure and the part 20 representing the optimal exposure are turned on (this display is referred to as a bar display). The overexposure and underexposure are indicated with respect to the display part 20 as the center of the bar. FIG. 6 shows a display state wherein the current exposure is given as the 4/3-step overexposure with respect to the optimal exposure. In this case, the user turns the exposure correction dial or the shutter-speed selector to obtain the optimal exposure so that only the display part 20 is turned on while checking the ON states of the display parts 14 to 26. When the optimal exposure is achieved, as shown in FIG. 7, only the display part 20 is turned on, so that an exposure deviation given by the corrected aperture value or shutter speed falls within ±1/6 step of the true optimal exposure.
1. A camera operative in a first mode as an automatic control mode for automatically controlling at least one of an aperture and a shutter so as to obtain an optimal exposure, and in a second mode for manually controlling an aperture value and a shutter speed to be controlled, and having a member operated in the first mode to deviate an exposure to be controlled from the optimal exposure, including:
(a) detecting means for detecting a deviation of the exposure from the optimal exposure and an exposure deviation direction thereof upon operation of said member in the first mode and generating a first detection signal; and
(b) display means having a plurality of display parts for displaying the deviation and the exposure deviation direction in response to the first detection signal;
(c) said detecting means being adapted to generate a second detection signal representing a deviation of an exposure and an exposure deviation direction thereof obtained as a combination of a manually preset aperture value and shutter speed in the second mode; and
(d) said plurality of display parts being adapted to display the deviation and the exposure deviation direction in response to the second detection signal.
2. A camera according to claim 1, wherein said plurality of display parts comprises one main display part for representing that the deviations represented by the first and second detection signals are zero, and a plurality of auxiliary display parts for displaying the deviaitons and the exposure deviation direcitons represented by the first and second detection signals.
US06782104 1984-10-04 1985-09-30 Camera display device Expired - Lifetime US4639113A (en)
JP20878784A JPS6186741A (en) 1984-10-04 1984-10-04 Display device of camera
JP59-208787 1984-10-04
US4639113A true US4639113A (en) 1987-01-27
ID=16562100
US06782104 Expired - Lifetime US4639113A (en) 1984-10-04 1985-09-30 Camera display device
US (1) US4639113A (en)
JP (1) JPS6186741A (en)
US4731630A (en) * 1985-06-17 1988-03-15 Nippon Kogaku K. K. Display device
FR2659151A1 (en) * 1990-03-02 1991-09-06 Asahi Optical Co Ltd A display device in a camera viewfinder.
JPH0812373B2 (en) * 1988-04-08 1996-02-07 株式会社ニコン Display device with a camera
US4264165A (en) * 1977-12-27 1981-04-28 Societe Aaton Film exposing equipment utilizing a succession of diodes for a luminous display device
JPS5786825A (en) * 1980-11-19 1982-05-31 Minolta Camera Co Ltd Exposure display device in finder of camera
JPS6186741A (en) 1986-05-02 application
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:OHKUBO, YUJI;REEL/FRAME:004464/0365
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:OHKUBO, YUJI;REEL/FRAME:004464/0365