Optical system with wavelength selecting device

Details Optical system with wavelength selecting device Optical system with wavelength selecting device

2005-03-22

2005-03-22

Schwartz, Jordan M. (Department: 2873)

Optical: systems and elements

Lens

Microscope objective

C359S361000, C359S589000

Reexamination Certificate

active

06870687

ABSTRACT:
The object is to provide an optical system with a wavelength selecting device. According to one aspect of the present invention, an optical system with a wavelength selecting device includes, in order from an object along an optical axis, an objective optical system composed of optical elements having refractive power and an aperture stop, a no-power optical group composed of optical elements having no refractive power, and an imaging device. The no-power optical group includes the wavelength selecting device for making short wavelength light be selectively substantially non-transparent. The wavelength selecting device preferably satisfies the predetermined conditional expressions.

REFERENCES:
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patent: 5710663 (1998-01-01), Kawasaki
patent: 6362923 (2002-03-01), Lange et al.
patent: 20020063955 (2002-05-01), Nishida et al.
patent: 20030165018 (2003-09-01), Mihara
patent: 06-337350 (1994-12-01), None
patent: 10-010423 (1998-01-01), None

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