1 September 1996 Equipment for real time MTF testing of copier and fax lenses
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Proceedings Volume 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology; 27781P (1996) https://doi.org/10.1117/12.2298943
Event: 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 1996, Taejon, Korea, Republic of
Abstract
This paper describes the fabrication and performance of a testing system for copier and fax lenses in mass production. With the crossed line objects and 2-dim CCD arrays, we could measure the radial and tangential MTF in on-axis and off-axis at the same time. The MTF characteristics of copier and fax lenses measured by this equipment show different results according to the direction of the charge coupled shift register, shutter speed and the amplifier gain of CCDs. This equipment is calibrated by using standard lenses.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hyun Mo Cho, Hyun Mo Cho, } "Equipment for real time MTF testing of copier and fax lenses", Proc. SPIE 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 27781P (1 September 1996); doi: 10.1117/12.2298943; https://doi.org/10.1117/12.2298943
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