Optical head and optical etching apparatus

The invention discloses an optical head and a photoetching device. The minitype optical head can provide secondary wavelength focal lightspots and super great depth of field. The minitype optical headcomprises a transparent base material, a lighttight film and at least one secondary wavelength annul...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHENG CONGDA, LI SHIGUANG, YE CHAOXIONG, CHEN ZHIHAO, ZHANG YOUJIA, ZHANG JINKAI, LIN DINGZHENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED THEREFOR CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER MATERIALS THEREFOR ORIGINALS THEREFOR PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHYSICS
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