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Proceedings Paper

Equipment for real time MTF testing of copier and fax lenses
Author(s): Hyun Mo Cho
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Paper 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.

Paper Details

Date Published: 1 September 1996
PDF: 2 pages
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
Show Author Affiliations
Hyun Mo Cho, Korea Research Institute of Standards and Science (Korea, Republic of)


Published in SPIE Proceedings Vol. 2778:
17th Congress of the International Commission for Optics: Optics for Science and New Technology
Joon-Sung Chang; Jai-Hyung Lee; ChangHee Nam, Editor(s)

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