FIELD: electro-optic devices. SUBSTANCE: device has radiation system, which is formed by two radiation sources; condenser unit made in form of ball-shaped optically transparent unit formed by two hemispheres of condensers which form beam-splitting element; system for image transmission in form of cylindrical optically transparent unit adjoining condenser unit and made in form of two semi-cylinders. One base of the unit has curvilinear surface and forms an objective. Device also has photoindication unit which has photodetector and electron processing circuit. Radiation system forms a beam which has equal-signal zone, which is received by photoindication unit. The unit generates difference signal when equal-signal zone is shifted from center of the photodetector. EFFECT: improved precision. 1 dwg
Title | Year | Author | Number |
---|---|---|---|
DEVICE FOR GENERATION AND TRACING OPTICAL BEAM | 1991 |
|
RU2017181C1 |
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OPTOELECTRONIC DEVICE FOR POLISHED SURFACE CONTOUR MEASURING WITHOUT CONTACT | 0 |
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ARRANGEMENT FOR CONTACTLESS MEASUREMENT OF POLISHED SURFACE PROFILE | 0 |
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SU1677528A1 |
Authors
Dates
1994-09-15—Published
1991-07-08—Filed