Wide field of view automotive rear vision optical system

Details Wide field of view automotive rear vision optical system Wide field of view automotive rear vision optical system

1992-03-09

1993-06-22

Arnold, Bruce Y.

Optical: systems and elements

Compound lens system

Telescope

359850, 359859, 359861, G02B 508, G02B 510, G02B 2300

Patent

active

052219909

ABSTRACT:
The present optical system (20) provides an all-reflective vehicle rear vision optical system. A planar mirror (22), acting like a conventional vehicle rearview mirror, would be positioned to receive a beam. The beam would be provided by an image erecting assembly (30) which, in turn, would reflect the beam into a three-mirror anastigmat telescope (24, 26 and 28) to provide rearward image beam to the first planar mirror and in turn, to the exit pupil (25). The optical system provides a 2X magnification at a wide field of view which substantially eliminates blind spots.

REFERENCES:
patent: 3645607 (1972-02-01), Whitney
patent: 3909117 (1975-09-01), Takahashi et al.
patent: 4114989 (1978-09-01), Badgley
patent: 4265510 (1981-05-01), Cook
patent: 4893915 (1990-01-01), Taguma
patent: 4964706 (1990-10-01), Cook
patent: 5009494 (1991-04-01), Iossi et al.

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