IP Library › Granted Patent US 4,245,892
Granted Patent Utility
US 4,245,892 · App. 06/953,347

Optical system having an optical surface containing aspherical terms with real number powers

Inventor: Naoki Izumiya
Patented Case View Patent ↗
Granted: Jan 20, 1981 Filed: Oct 23, 1978
Inventor
Naoki Izumiya
Assignee (at issue)
Konishiroku Photo Industry Co., Ltd.

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Quick Facts
Patent No.
US 4,245,892
App. No.
06/953,347
Filed
1978-10-23
Granted
1981-01-20
Kind
A