Browse Prior Art Database

Lens Drive Wear Mechanism

IP.com Disclosure Number: IPCOM000086200D
Original Publication Date: 1976-Aug-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 2 page(s) / 38K

Publishing Venue

IBM

Related People

Hardman, JL: AUTHOR [+3]

Abstract

In an optical scan mechanism, a lens oscillates through scan and reset movements, indicated by arrow 10. The accuracy of scan can be disturbed if the mechanism wears so as to introduce backlash in the drive mechanism. Lens 11 is cam driven, through a mechanical linkage, by an electric motor.

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Lens Drive Wear Mechanism

In an optical scan mechanism, a lens oscillates through scan and reset movements, indicated by arrow 10. The accuracy of scan can be disturbed if the mechanism wears so as to introduce backlash in the drive mechanism. Lens 11 is cam driven, through a mechanical linkage, by an electric motor.

To assist in snalysis of wear, the drive motor, not shown, is manually moved in the direction of its normal travel, to a reference position. With the motor in this position, the position of lens 11 and its movable carriage 12 is observed. If no wear exists, carriage scribe line 13 coincides with stationary scribe line 14.

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