Published September 14, 1982 | Version v1
Patent Metadata-only

Compound lens

Creators

Description

The disclosure relates to at least one calcium fluoride optical element used in combination with at least two ordinary crown glass lens elements to greatly reduce secondary spectrum in optical systems

Availability note (English)

U.S. Commissioner of Patents, Washington, D.C. 20231, USA, $.50.

Additional details

Publishing Information

Imprint Pagination
v p.
IPC:
Int. Cl. G02B 1/02.
IPC
Int. Cl. G02B 1/02.
Patent number
US patent document 4,349,249/A/

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
14769581
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
CALCIUM FLUORIDES; GLASS; LENSES; MATERIALS; OPTICAL SYSTEMS; REFRACTION
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; CALCIUM COMPOUNDS; FLUORIDES; FLUORINE COMPOUNDS; HALIDES; HALOGEN COMPOUNDS

Optional Information

Notes
PAT-APPL-151995.