OPTICAL SYSTEM FORMING BEAM ( VARIANTS ) AND OPTICAL SENSOR

optics. SUBSTANCE: given optical system incorporates light source, plane-parallel plates placed in relative symmetric position with reference to plane perpendicular to optical axis of light source, photodetector detecting light reflected from optical recording medium and cylindrical lens. Cylindrica...

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Bibliographische Detailangaben
Hauptverfasser:	KIM TAE-KIJUNG, SEONG P'ONG-JONG, LI CHUL-VU
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS DEVICES USING STIMULATED EMISSION ELECTRICITY INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS
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Beschreibung
Zusammenfassung:	optics. SUBSTANCE: given optical system incorporates light source, plane-parallel plates placed in relative symmetric position with reference to plane perpendicular to optical axis of light source, photodetector detecting light reflected from optical recording medium and cylindrical lens. Cylindrical lens is located between light source and plane-parallel plates. First plane-parallel plate on which light beam falls from cylindrical lens lets this beam pass through and reflects light beam reflected from optical recording medium towards photodetector. EFFECT: enhanced efficiency of usage of light beam and minimal aberration of wave front. 28 cl, 8 dwg