BE763925R - PHOTOFLASH - Google Patents
PHOTOFLASHInfo
- Publication number
- BE763925R BE763925R BE763925A BE763925A BE763925R BE 763925 R BE763925 R BE 763925R BE 763925 A BE763925 A BE 763925A BE 763925 A BE763925 A BE 763925A BE 763925 R BE763925 R BE 763925R
- Authority
- BE
- Belgium
- Prior art keywords
- photoflash
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/16—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly in accordance with both the intensity of the flash source and the distance of the flash source from the object, e.g. in accordance with the "guide number" of the flash bulb and the focusing of the camera
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/30—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp
- H05B41/32—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp for single flash operation
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2215/00—Special procedures for taking photographs; Apparatus therefor
- G03B2215/05—Combinations of cameras with electronic flash units
- G03B2215/0514—Separate unit
- G03B2215/0517—Housing
- G03B2215/0525—Reflector
- G03B2215/0528—Reflector movable reflector, e.g. change of illumination angle or illumination direction
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MY7500244A MY7500244A (en) | 1970-09-23 | 1975-12-30 | Electronic photoflash |
MY7500243A MY7500243A (en) | 1970-08-24 | 1975-12-30 | Electronic photoflash |
MY7500247A MY7500247A (en) | 1971-03-08 | 1975-12-30 | Electric switch |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE54471 | 1968-02-13 | ||
BE100618 | 1971-03-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE763925R true BE763925R (en) | 1971-08-02 |
Family
ID=25647388
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE763925A BE763925R (en) | 1968-02-13 | 1971-03-08 | PHOTOFLASH |
Country Status (1)
Country | Link |
---|---|
BE (1) | BE763925R (en) |
-
1971
- 1971-03-08 BE BE763925A patent/BE763925R/en active
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