Optical: systems and elements – Compound lens system – Telescope
Reexamination Certificate
2007-10-02
2007-10-02
Lavarias, Arnel (Department: 2872)
Optical: systems and elements
Compound lens system
Telescope
C359S407000, C359S411000, C359S412000
Reexamination Certificate
active
11052041
ABSTRACT:
Binoculars which include a pair of observation optical systems each having an objective optical system, an erecting optical system and an eyepiece optical system. The binoculars include a focusing mechanism that is used to move a part of the observation optical system for focusing, and a convergence value compensating mechanism that compensates for a convergence value by displacing displaceable optical elements which are at least parts of the objective optical systems, respectively, in association with actuation of the focusing mechanism. In this structure, a distance between optical axes of the eyepiece optical systems is adjustable in line with a width between eyes of a user. A maximum value of a distance between optical axes of the displaceable optical elements is smaller than a minimum value of the distance between the optical axes of the eyepiece optical systems.
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English Language Abstract of JP 5-107444.
U.S. Appl. No. 11/052,042 to Nemoto et al., filed Feb. 8, 2005.
U.S. Appl. No. 11/052,051 to Nemoto et al., filed Feb. 8, 2005.
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Hirunuma Ken
Nemoto Satoru
Greenblum & Bernstein P.L.C.
Lavarias Arnel
PENTAX Corporation
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