Optical: systems and elements – Single channel simultaneously to or from plural channels – By partial reflection at beam splitting or combining surface
Reexamination Certificate
2007-04-10
2007-04-10
Spector, David N. (Department: 2873)
Optical: systems and elements
Single channel simultaneously to or from plural channels
By partial reflection at beam splitting or combining surface
C359S829000
Reexamination Certificate
active
11081927
ABSTRACT:
A checking and focusing device for an telescope eyepiece includes an eyepiece barrel formed of an inner tube and an outer tube. The outer tube has at one end a clamping portion formed with multiple resilient segments in a radial shape. A locking ring is threaded onto the clamping portion so that rotating the locking ring can gradually constrict the resilient segments to clamp the eyepiece tightly without biasing its axis. A production process for the chucking and focusing device for an telescope eyepiece includes two steps. One step is to machine multiple lengthwise grooves in an inner surface of a metal tube, the thickness of the grooves being the same as the depth of the resilient segments. The tube is then machined until the grooves are exposed, forming a single elastic strip between every two grooves, forming the clamping portion of the tube.
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patent: 7032932 (2006-04-01), Guest
Bacon & Thomas PLLC
Spector David N.
Sun Long Optics Co., Ltd.
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