Light receiving optical system, and spectrophotometer...

Details Light receiving optical system, and spectrophotometer... Light receiving optical system, and spectrophotometer...

2008-07-09

2011-11-22

Chapel, Derek S (Department: 2872)

Optical: systems and elements

Compound lens system

Variable magnification

C356S233000, C250S339070

Reexamination Certificate

active

08064133

ABSTRACT:
A light receiving optical system includes: a relay optical system for converging light to be measured which has been converged on an image plane of an objective optical system. The light receiving optical system has a relay optical system with a relay lens operable to be selectively switched between first and a second conjugate positions, and a first and a second light flux limiting aperture members selectively switched between the first and the second conjugate positions. The relay optical system selectively forms, on the image plane of the objective optical system, an enlarged image and a reduced image of a view angle defining aperture in the case where the relay lens is selectively switched between the first and the second conjugate positions to define an incident light flux through the view angle defining aperture by a first and a second light flux limiting apertures, respectively.

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patent: 2001-264166 (2001-09-01), None
Figs. 7 and 8 of present application filed Jul. 9, 2008 entitled “Light Receiving Optical System, and Spectrophotometer Incorporated With the Same.”
Office Action Dated Jun. 14, 2011 for Japanese Application No. 2007-183555.

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