PROJECTION LENS

PURPOSE:To realize a high focus by constituting the title lens of four groups containing a meniscus lens whose both faces are both convex faces against a screen, a biconvex positive lens, a lens which has a biconvex center part and weak positive refracting power, and a negative lens having a concave...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	INAOKA SHIGERU, MURANAKA MASAYUKI, JITSUKATA HIROSHI, FUKUDA KYOHEI, MORI SHIGERU, YOSHIZAKI ISAO, YOSHIKAWA HIROKI, HIRATA KOJI
Format:	Patent
Sprache:	eng
Schlagworte:	OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS
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