WIDE-ANGLE OPTICAL DEVICE

1. Optical wide-angle device that can be connected to optical apparatus (5) and is suitable for receiving and projecting circular images, having an annular lens (1) of which the outer surface (2) is light-permeable and has an opening (3) which tapers in the direction towards the objective (14) of th...

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Bibliographische Detailangaben
1. Verfasser:	KALOCSAI,ISTVAN,HU
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAPHY PHYSICS
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Beschreibung
Zusammenfassung:	1. Optical wide-angle device that can be connected to optical apparatus (5) and is suitable for receiving and projecting circular images, having an annular lens (1) of which the outer surface (2) is light-permeable and has an opening (3) which tapers in the direction towards the objective (14) of the optical apparatus and of which the surface (7) is constructed as a reflecting surface for the rays coming from the outer surface (2) of the annular lens, and having a plate (15) which covers the annular lens towards the outside, the optical axis of the annular lens corresponding to the optical axis of the objective, characterized in that on the outer side of the cover plate (15) there is arranged a viewfunder prism (17) and on the inside of the cover plate there is arranged a correction lens (23) coaxially with the annular lens (1).