Objective lens for endoscope

Details Objective lens for endoscope Objective lens for endoscope

1994-10-31

1996-06-25

Epps, Georgia Y.

Optical: systems and elements

Lens

Microscope objective

359740, 359784, 359788, G02B 2102, G02B 308, G02B 912

Patent

active

055305911

ABSTRACT:
An objective lens for an endoscope includes a first lens group having one negative lens, a second positive lens group having at least one positive lens, and a third positive lens group having a cemented lens consisting of one positive lens and a negative lens adhered thereto. The objective lens satisfies the requirements defined by the following relationships:

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