序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
61 Photocell arrangement for moving picture camera US57211156 1956-03-16 US2918854A 1959-12-29 GEORG MALEK
62 Adjusting device for light measuring and controlling apparatus and the like US55970856 1956-01-17 US2902968A 1959-09-08 OTTO BARTHRUFF; ERWIN PFAFFENBERGER
63 Exposure control US42935854 1954-05-12 US2879702A 1959-03-31 HANS GOSSEN; WOLF KROGER; WALTER ILLING
64 Photographic exposure-time measuring device US41534154 1954-03-10 US2861505A 1958-11-25 ALFRED WINKLER; WILLY KADEN
65 Optical system with automatic photometering and diaphragm adjusting means US16514050 1950-05-31 US2612091A 1952-09-30 JOHANN WEISS KARL
66 Computing device for photographic cameras US59570245 1945-05-25 US2418370A 1947-04-01 ALFRED SIMMON
67 Exposure control device US43101442 1942-02-16 US2358083A 1944-09-12 JOSEPH MIHALYI
68 Exposure control mechanism for cameras US47791243 1943-03-04 US2341393A 1944-02-08 ALFRED SIMMON
69 Combined camera and exposure meter US36979640 1940-12-12 US2256208A 1941-09-16 LUDWIG LEITZ; HEIURICH BROSCHKE
70 Photographic camera US33593740 1940-05-18 US2241020A 1941-05-06 HUBERT NERWIN
71 Apparatus for automatically determining the exposure in photographic apparatus US51183231 1931-01-28 US2000037A 1935-05-07 ODON RISZDORFER
72 Method and apparatus for detecting camera sensor intensity saturation US10921692 2004-08-19 US20050030413A1 2005-02-10 Michael Gough
A method for detecting intensity saturation of a light sensor includes monitoring an electrical signal from a light sensor for detecting an intensity saturation condition of at least one pixel of the light sensor, converting the electrical signal to a digital signal, imposing a reserved bit combination on the digital signal indicating the intensity saturation condition of the pixel, and transmitting a control signal in response to the digital signal to compensate for the intensity saturation condition of the pixel. Alternatively stated, the method includes monitoring pixel data from an output of a light sensor to determine a number of pixels at saturation and a number of pixels near saturation, comparing the number of pixels at saturation to a predetermined first threshold number, comparing the number of pixels near saturation to a predetermined second threshold number, reprogramming the light sensor to adapt to more brightness if the number of pixels at saturation is above the first threshold number, and reprogramming the light sensor to adapt to less brightness if the number of pixels near saturation is below the second threshold number. An apparatus for detecting intensity saturation of a light sensor includes a saturation detector for detecting and measuring an intensity saturation condition of at least one pixel of a light sensor, the intensity saturation condition of the pixel being at saturation upon receiving light with an intensity above a predetermined level, the saturation detector emitting a digital signal with a reserved bit combination indicating the intensity saturation condition of the pixel, and a processor receiving and processing the digital signal from the saturation detector and transmitting a control signal in response to the digital signal to compensate for the intensity saturation condition of the pixel.
73 US85001177 1977-11-09 US4181419B1 1986-04-08
74 Interchangeable lens for SLR-cameras having TTL light metering US850011 1977-11-09 US4181419A 1980-01-01 Werner Schlapp; Willi Wiessner
In an interchangeable lens assembly for single lens reflex cameras the f-stop preselection ring is provided with a first transmission element for transmitting the preselected f-stop value into the light metering instrument of the camera housing, and with a second transmission element for controlling a device in the camera housing which indicates the preselected f-stop value. Said first and second transmission elements are parts of one common setting member which is in such a manner fixedly mounted on the preselection ring that -- when the preselection ring is in its base position -- said first transmission element assumes the same position in all interchangeable lenses while said second transmission element assumes positions that vary according to the maximum opening of the lens.
75 Structure of exposure measuring device using two galvanometers US3700337D 1970-06-12 US3700337A 1972-10-24 FUJII TATSUO; TOMOMITSU TOSHIO
An electrical photo-exposure meter comprising at least one variable resistor operatively associated with an exposure factor whereby an accurate exposure free of any error resulting from a variation in the source voltage can always be obtained without checking the source voltage.
76 Warning device for exposure meter US3613536D 1969-07-18 US3613536A 1971-10-19 TAGUCHI TATSUYA; WATANABE YOSHIAKI
A warning device for an exposure meter for avoiding an erroneous photographic exposure. A restricting pin is provided at a limit point of the range of movement of the meter pointer so that the coincidence of the followup pointer with the meter pointer is avoided at the limit of said range.
77 Device for determining and setting the proper exposure for a camera US3548727D 1969-06-09 US3548727A 1970-12-22 MAITANI YOSHIHISA
78 Photographic camera US3543660D 1967-08-24 US3543660A 1970-12-01 WAASKE HEINZ
79 Photographic camera US34520364 1964-02-17 US3283681A 1966-11-08 FRANZ SINGER; PAUL FAHLENBERG
80 Cameras with coupled light meters US75642658 1958-08-21 US3102460A 1963-09-03 FRITZ RUMPELEIN
QQ群二维码
意见反馈