Macrolens system for emission microscopy

Details Macrolens system for emission microscopy Macrolens system for emission microscopy

1994-12-30

1996-03-19

Nguyen, Thong Q.

Optical: systems and elements

Lens

Multiple component lenses

359362, 359368, 359643, 359656, G02B 904, G02B 2100, G02B 2102

Patent

active

055007708

ABSTRACT:
A multiple lens element macrolens system operative as a single lens has a high light transmission value and a wide field of view of an object to be viewed. The macrolens system provides a long object working distance and an extended back focal distance to an image plane. An object group of lens elements is spaced by a substantial axial gap from an image group of lens elements. The gap and the working and back focal distances facilitate inclusion of various auxiliary components into an optical instrument which incorporates the macrolens system.

REFERENCES:
patent: 4680635 (1987-07-01), Khurana
patent: 4755874 (1988-07-01), Esrig

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