Lens for reading an original, method and apparatus for...

Details Lens for reading an original, method and apparatus for... Lens for reading an original, method and apparatus for...

2005-06-21

2005-06-21

Schwartz, Jordan M. (Department: 2873)

Optical: systems and elements

Lens

Multiple component lenses

C359S773000, C359S774000, C359S776000, C359S715000, C359S740000

Reexamination Certificate

active

06909559

ABSTRACT:
A lens for reading an original, comprises five lenses as a whole including two positive and two negative lenses, an aspherical surface provided on at least one surface of the five lenses, a construction of four lens groups for five lenses which include a cemented lens constructed by cementing one of the positive lenses and one of the negative lenses, an aperture stop disposed between a second and third lens groups, and the cemented lens disposed adjacent to the aperture stop.

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