ES234117A1 - Improvements in electronic equipment used in photographic work (Machine-translation by Google Translate, not legally binding)
- Google Patents
Improvements in electronic equipment used in photographic work (Machine-translation by Google Translate, not legally binding)
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Light Sources And Details Of Projection-Printing Devices
(AREA)
Optical Elements Other Than Lenses
(AREA)
Abstract
Improvements in the electronic equipment used in photographic work, characterized essentially by combining an external part equipped with an internal reflector surface of parabolic type, with a second piece located inside the first and whose internal reflecting surface is of an equally parabolic type, arranging both coaxial parts with the first of them inverted in relation to the second, with the particularity that in the focus of the second reflective surface an electronic lamp of instantaneous light is mounted and in the bottom of the first surface, in axial position, it is it has a normal lighting medium, such as a metallic filament light bulb, so that the two aforementioned lamps are placed face to face, in opposition in the same way that the reflecting surfaces are respectively mounted face to face and in opposition to the second one. The inside of the first one. (Machine-translation by Google Translate, not legally binding)
ES234117A1957-03-081957-03-08Improvements in electronic equipment used in photographic work (Machine-translation by Google Translate, not legally binding)
ExpiredES234117A1
(en)
Procedure for the manufacture of headlights projectors of luminous asymmetric beam applied to automobiles (Machine-translation by Google Translate, not legally binding)