METHOD AND DEVICE FOR LENS TILT ADJUSTMENT

Japanese Patent JP3392904

B2

PURPOSE: To smoothly adjust the tilt of a lens mounted on a movable supporting member.
CONSTITUTION: A laser beam is projected from an objective lens 150 and an optical interference fringe is generated by means of the reflected light of the laser beam by a hemispherical lens 202. The magnitude of the strain of the interference fringe is changed by the relative tilt of the objective lens 150 and a cover glass A. Next, a claw 401 for tilt adjustment is brought into contact with the upper surface of the objective lens 150. By energizing the solenoid coil 163 of a supporting member 151, the supporting member 151 is raised and the objective lens 150 is abutted on the claw 401 for tilt adjustment. The claw 401 for tilt adjustment is separated from the objective lens 150 and the strain of the interference fringe is observed. When the objective lens 150 is further tilted, the claw 401 for tilt adjustment is inclined. The claw 401 for tilt adjustment is brought into contact with the upper surface of the objective lens 150, the supporting member 151 is again raised and the objective lens 150 is abutted on the claw 401 for tilt adjustment. Thereafter, the similar procedure is repeated.

JP2001318287	LENS-HOLDING DEVICE AND IMAGE READER EQUIPPED WITH THE SAME
JP2005134524	SILICON BENCH, MANUFACTURING METHOD THEREFOR, AND OPTICAL COMMUNICATION COMPONENT
JP2596891	[Name of invention] Rotation operation ring mechanism of lens barrel

Hiroshi Nishikawa
Hisashi Konno
Masahiro Ohno
Katsuki Hayashi

JP8563793A

March 31, 2003

March 19, 1993

Click for automatic bibliography generation  

Pentax Corporation

G02B7/02; G02B7/00; G11B7/08; G11B7/095; G11B7/22; (IPC1-7): G11B7/22; G02B7/00; G02B7/02; G11B7/08

JP6446241A
JP62147339A
JP6248018U
JP638710U
JP63132910U

Takashi Matsuura

Previous Patent: INJECTION MOLDED PIECE HAVING HOLLOW RIB STRUCTURE

Next Patent: BAY-WINDOW STRUCTURE