Illumination – Work-table lighting system
Patent
1981-08-18
1983-05-17
Gluck, Irwin
Illumination
Work-table lighting system
362 5, 362804, G03B 1505, F21V 3300, F21V 1312
Patent
active
043843158
ABSTRACT:
The present invention relates to a photographic flash device used with a common still camera in order to photograph a patient's operation under a shadowless lamp. Specifically, the present invention is characterized in that the flash from a stroboscopic unit positioned with the still camera indirectly actuates a flash device housed in the shadowless lamp, thereby causing substantially simultaneous action of a light-emitter of the flash device. For this purpose, the present invention includes a light receiver, like a photo cell, which functions as a synchronous light-emission switch; a focusing reflector which focuses the flash from the stroboscopic unit positioned with the camera and which is located outside the lamp housing and which illuminates and activates the light receiver; a light shielder which prevents the primary reflection beam from the illuminated field of the shadowless lamp from falling onto the light receiver; a charger connected to a power source and the light receiver; and a light-emitter, like a stroboscopic lamp, which is connected to the charger and which emits light in the same direction as that of the shadowless lamp.
REFERENCES:
patent: 2911518 (1959-11-01), Anderson
patent: 3786244 (1974-01-01), Hutter
patent: 4159511 (1976-06-01), Dejonc
patent: 4288844 (1981-09-01), Fisher et al.
Gluck Irwin
Yamada Iryo Shomei Kabushiki Kaisha
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