Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer
Patent
1997-06-17
1999-08-17
Kim, Robert H.
Optics: measuring and testing
By dispersed light spectroscopy
Utilizing a spectrometer
356360, G01B 902
Patent
active
059401818
ABSTRACT:
A method of measuring a lens comprises an aligning step of relatively aligning a plurality of specified annular zones on a surface of the lens with predetermined positions, and a determining step of determining an aspherical axis of the target surface aligned in the aligning step.
REFERENCES:
patent: 5004346 (1991-04-01), Kiihel
patent: 5625454 (1997-04-01), Huang et al.
Makita Fujio
Matsushita Yasushi
Nakanishi Hirofumi
Tsubono Issei
Canon Kabushiki Kaisha
Kim Robert H.
Nguyen Tu T.
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