Objective lens system for microscope

Details Objective lens system for microscope Objective lens system for microscope

2007-01-02

2007-01-02

Sugarman, Scott J. (Department: 2873)

Optical: systems and elements

Lens

Microscope objective

C359S656000, C359S661000

Reexamination Certificate

active

11206089

ABSTRACT:
An objective lens system for microscope which comprises first and second lens units or first through fourth lens units, and in which the second or third lens unit has a function to correct chromatic aberration within a range from a visible region to a near infrared region and aberrations are favorably corrected within the range from the visible region to the near infrared region.

REFERENCES:
patent: 5191473 (1993-03-01), Kashima et al.
Patent Abstracts of Japan, JP 62-049313 A; Mar. 4, 1987, Olympus Optical Co Ltd.
Patent Abstracts of Japan, JP 04-026813 A; Jan. 30, 1992, Mitsutoyo Corp.
Patent Abstracts of Japan, JP 06-175034 A; Jun. 24, 1994; Olympus Optical Co Ltd.
Patent Abstracts of Japan, JP 11-174338 A; Jul. 2, 1999; Nikon Engineering: KK Nikon Corp.
Patent Abstracts of Japan, JP 2003-167199 A; Jun. 13, 2003; Mitsutoyo Corp.
Patent Abstracts of Japan, JP 05-119263 A; May 18, 1993; Olympus Optical Co Ltd.
Patent Abstracts of Japan, JP 04-159506 A; Jun. 2, 1992; Olympus Optical Co Ltd.

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