Title:
FOCUS ADJUSTING MECHANISM OF MONITORING CAMERA DEVICE
Document Type and Number:
Japanese Patent JP3440740
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To eliminate stress only in one direction to a focus adjusting part, and prevent wreck of a camera focus adjusting part and dislocation of the optical axis with a monitoring camera by providing a fitting-installing part fitted to and installed in a projecting part fixed to the camera focus adjusting part, and transmitting rotation of a rotary shaft to an annular ring-shaped gear through a worm gear.
SOLUTION: When a lug 11 installed on a rotary shaft 9 is rotated, a worm gear 12 to rotate by frictional force generated between one side surface 12a of the worm gear and a contact part 13 by energizing force of a coil spring 14, transmits torque to a gear 8. When the gear 8 rotates, a focus adjusting bar which is supported by a bar support part and is installed on a clamp 6 rotates. Therefore, the clamp 6 installed on a periphery of a focus ring 5 rotates the focus ring 5, and since a lens mount longitudinally moves thereby, a focus of a camera 2 is adjusted.
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Inventors:
Koji Haraguchi
Application Number:
JP5283797A
Publication Date:
August 25, 2003
Filing Date:
March 07, 1997
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
G03B15/00; G02B7/02; G02B7/04; G02B7/08; G02B7/09; (IPC1-7): G02B7/04; G02B7/02; G03B15/00
Domestic Patent References:
| JP469638A | ||||
| JP643354A | ||||
| JP7168265A | ||||
| JP980605A | ||||
| JP980606A | ||||
| JP7152093A | ||||
| JP4948437U | ||||
| JP53140446U | ||||
| JP529035U | ||||
| JP739267U | ||||
| JP5937459U |
Attorney, Agent or Firm:
Kaneo Miyata (1 person outside)