Adjusting method for focus of optical image

This invention is related to an adjusting method for focus of optical image generated from a point source light penetrating an optical lens module, including: calculating a tilt vector T(X,Y), a diagonal value and an average value M in response to said four focus values of four corners of said optic...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	CHIN, HOUING, CHANG, CHIHIEN
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY PHOTOGRAPHY PHYSICS
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Beschreibung
Zusammenfassung:	This invention is related to an adjusting method for focus of optical image generated from a point source light penetrating an optical lens module, including: calculating a tilt vector T(X,Y), a diagonal value and an average value M in response to said four focus values of four corners of said optical image; thereby adjusting the tilt direction and degree of said optical lens module, analysising on the source of tolerance of said optical lens module, and calculating the uniformity of focus of said optical image.