WIDE-ANGLE LENS WITH LONG BACK FOCUS

PURPOSE:To obtain a long back focus and to make excellent compensation for respective aberrations by composing the wide-angle lens of a 1st lens group consisting of one negative lens and a 2nd lens group consisting four lenses in combination and making the lens groups meet specific requirement. CONS...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	ISHII ATSUJIROU
Format:	Patent
Sprache:	eng
Schlagworte:	OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS
Online-Zugang:	Volltext bestellen
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