Decentered optical system

Details Decentered optical system Decentered optical system

1997-10-29

1999-11-16

Nguyen, Thong

Optical: systems and elements

Image stabilization

By movable refractive structure

359554, 359649, G02B 2764

Patent

active

059868066

ABSTRACT:
A decentered optical system has a first lens unit having positive refractive power and a second lens unit having positive refractive power arranged in the order in which they are listed from a screen to a liquid crystal display device. Each of the first and second lens units includes a lens surface which is tilted and decentered with respect to the surface of the foregoing liquid crystal display device. The decentered optical system permits reduction in the sizes of the lenses used while maintaining good optical performance at the same time.

REFERENCES:
patent: 3051043 (1962-08-01), Miller
patent: 4573769 (1986-03-01), Clarke
patent: 5475534 (1995-12-01), Okajima et al.
patent: 5550679 (1996-08-01), Sugawara
patent: 5552938 (1996-09-01), Sugawara
patent: 5600490 (1997-02-01), Sugawara et al.
patent: 5648871 (1997-07-01), Okuyama et al.

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