Telecentric imaging optical system

Details Telecentric imaging optical system Telecentric imaging optical system

1993-01-21

1995-05-09

Look, Edward K.

Optical: systems and elements

Lens

Telecentric system

359690, G02B 1514

Patent

active

054145619

ABSTRACT:
A telecentric imaging optical system has first and third lens systems each having a positive power, and a second lens system having a negative power. In the imaging optical system, the second lens system is disposed between the first and the third lens systems. The imaging optical system satisfies the following inequalities:

REFERENCES:
patent: 4637690 (1987-01-01), Miyamae et al.
patent: 4867545 (1989-09-01), Wakimoto et al.
patent: 4913540 (1990-04-01), Minefuji
patent: 5026145 (1991-06-01), Marvi et al.
Patent Abstracts of Japan, vol. 7, No. 260, JP 58-142310, Aug. 24, 1983.

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