INFRARED COATING STUDIES.

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Abstract:

In line with the contract objective of coating studies in the far infrared, the work was concerned with transmission filters for the 20 micron to 50 micron region. In particular, three types of transmission filters employing LiF films are discussed. Bandpass and low frequency pass filters were designed for the long wavelength side of the LiF rst. band. Within the rst. band, where the ratio kn is high, induced transmission filters were designed, using LiF rst. layers to simulate metal films. Computed transmittance curves for these three types are given. It develops that LiF is not a particularly good material to use in the design of these transmission filters.

Author(s):
Maier, R. L.
Author Organization(s):
BAUSCH AND LOMB INC ROCHESTER N Y RESEARCH AND DEVELOPMENT DIV
Descriptive Note:
Quarterly rept. no. 2, 16 Sep-15 Dec 66,
Supplementary Note:
See also AD-641 032.
Pagination:
0016

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
DA-44-009-AMC-1707(E)
 Subject Terms
Joint Capability Areas:
JCA_6.1_Information Transport; JCA_6_Net Centric
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*INFRARED FILTERS, *OPTICAL COATINGS, *INFRARED OPTICAL MATERIALS, OPTICAL COATINGS, FILMS, LITHIUM FLUORIDES, WAVE PROPAGATION, BANDPASS FILTERS, OPTICAL PROPERTIES, REFLECTIVITY
Field(s)/Group(s):
Optics
Keyword(s):
RESTSTRAHLEN
Report Date:
1966 Dec 15