Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Daigo Aiba0
Shigeru Yoshida0
Date of Patent
December 2, 2008
0Patent Application Number
117988870
Date Filed
May 17, 2007
0Patent Primary Examiner
Patent abstract
A monitoring lens apparatus is provided and includes a fixed cylinder, a first lens frame provided at an inner portion of the fixed cylinder and movable in an optical axis direction, a second lens frame provided at the inner portion of the fixed cylinder and movable in the optical axis direction, a first ring provided rotatably to the fixed cylinder and provided with a cam groove for driving the first lens frame, a second ring provided rotatably to the fixed cylinder on an object side of the first ring and provided with a cam groove for driving the second lens frame, and an extended portion provided integrally with the first ring and extended to the object side to cover an outer periphery of the second ring.
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