Optical Device

An advantageous optical apparatus with relatively large field viewing of an image to the rear of an observer is disclosed. The apparatus has two mirrors having cylindrical symmetry where the mirrors are positioned so that a plane of symmetry for each mirror is substantially coincident. The mirrors a...

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Bibliographische Detailangaben
1. Verfasser:	SCHUTZ RONALD JOSEPH
Format:	Patent
Sprache:	eng
Schlagworte:	OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHYSICS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	An advantageous optical apparatus with relatively large field viewing of an image to the rear of an observer is disclosed. The apparatus has two mirrors having cylindrical symmetry where the mirrors are positioned so that a plane of symmetry for each mirror is substantially coincident. The mirrors are further configured so that the apparatus has an astigmatism less than 0.0035, and a ratio between the far field and the near field magnification of less than 0.9. The apparatus is fabricated, in one embodiment, by using force to conform a thin polymer mirror onto an appropriate surface configuration on a monolithic block.