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 |
|