OPTICAL DEVICE

PURPOSE:To enable positioning with high accuracy by providing an electrical driving means for applying driving force to an optical element, a stopper for positioning the optical element in a prescribed position and an elastic member for pressing the optical element to a stopper. CONSTITUTION:A pulse...

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Bibliographic Details
Main Authors TAKAHASHI KAZUO, KUROKI YOUICHI
Format Patent
LanguageEnglish
Published 17.09.1985
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Abstract PURPOSE:To enable positioning with high accuracy by providing an electrical driving means for applying driving force to an optical element, a stopper for positioning the optical element in a prescribed position and an elastic member for pressing the optical element to a stopper. CONSTITUTION:A pulse motor 14 is driven to rotate a gear 11 in an arrow (b) direction in the case of moving a mirror 7 from the 1st position 7a for observation to the 2nd position 7b for exposing. The mirror 7 is rotated in the arrow (b) direction as well by the energizing force of a spring 12 according to said rotation. The mirror 7 stops by contacting with a stopper 10. The mirror 7 cannot rotate any more in this stage but the gear rotates further in the arrow (b) direction because a spring 12 is interposed between said gear and the mirror 7. A photoswitch 15 detects the contact of the mirror 7 with a stopper 10 and stops the motor 14 and thereafter the motor 14 is rotated by as much as the prescribed number of pulses so that the mirror 7 is pressed stably to the stopper 10 in the 2nd position by the spring 12.
AbstractList PURPOSE:To enable positioning with high accuracy by providing an electrical driving means for applying driving force to an optical element, a stopper for positioning the optical element in a prescribed position and an elastic member for pressing the optical element to a stopper. CONSTITUTION:A pulse motor 14 is driven to rotate a gear 11 in an arrow (b) direction in the case of moving a mirror 7 from the 1st position 7a for observation to the 2nd position 7b for exposing. The mirror 7 is rotated in the arrow (b) direction as well by the energizing force of a spring 12 according to said rotation. The mirror 7 stops by contacting with a stopper 10. The mirror 7 cannot rotate any more in this stage but the gear rotates further in the arrow (b) direction because a spring 12 is interposed between said gear and the mirror 7. A photoswitch 15 detects the contact of the mirror 7 with a stopper 10 and stops the motor 14 and thereafter the motor 14 is rotated by as much as the prescribed number of pulses so that the mirror 7 is pressed stably to the stopper 10 in the 2nd position by the spring 12.
Author KUROKI YOUICHI
TAKAHASHI KAZUO
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Snippet PURPOSE:To enable positioning with high accuracy by providing an electrical driving means for applying driving force to an optical element, a stopper for...
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SubjectTerms APPARATUS SPECIALLY ADAPTED THEREFOR
BASIC ELECTRIC ELEMENTS
CINEMATOGRAPHY
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
ELECTROGRAPHY
HOLOGRAPHY
MATERIALS THEREFOR
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
ORIGINALS THEREFOR
PHOTOGRAPHY
PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES
PHYSICS
SEMICONDUCTOR DEVICES
Title OPTICAL DEVICE
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