Techniques for optically compressing light intensity ranges
Abstract
A pin hole camera assembly for use in viewing an object having a relatively large light intensity range, for example a crucible containing molten uranium in an atomic vapor laser isotope separator (AVLIS) system is disclosed herein. The assembly includes means for optically compressing the light intensity range appearing at its input sufficient to make it receivable and decipherable by a standard video camera. A number of different means for compressing the intensity range are disclosed. These include the use of photogray glass, the use of a pair of interference filters, and the utilization of a new liquid crystal notch filter in combination with an interference filter. 18 figs.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 7076983
- Patent Number(s):
- 4815828
- Application Number:
- PPN: US 6-863912
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 16 May 1986
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 07 ISOTOPES AND RADIATION SOURCES; 47 OTHER INSTRUMENTATION; CAMERAS; DESIGN; LASER ISOTOPE SEPARATION; MONITORING; COMPRESSION; LIQUID METALS; OPTICAL FILTERS; URANIUM; VISIBLE RADIATION; ACTINIDES; ELECTROMAGNETIC RADIATION; ELEMENTS; FILTERS; FLUIDS; ISOTOPE SEPARATION; LIQUIDS; METALS; RADIATIONS; SEPARATION PROCESSES; 070100* - Physical Isotope Separation; 440600 - Optical Instrumentation- (1990-)
Citation Formats
Rushford, M C. Techniques for optically compressing light intensity ranges. United States: N. p., 1989.
Web.
Rushford, M C. Techniques for optically compressing light intensity ranges. United States.
Rushford, M C. Tue .
"Techniques for optically compressing light intensity ranges". United States.
@article{osti_7076983,
title = {Techniques for optically compressing light intensity ranges},
author = {Rushford, M C},
abstractNote = {A pin hole camera assembly for use in viewing an object having a relatively large light intensity range, for example a crucible containing molten uranium in an atomic vapor laser isotope separator (AVLIS) system is disclosed herein. The assembly includes means for optically compressing the light intensity range appearing at its input sufficient to make it receivable and decipherable by a standard video camera. A number of different means for compressing the intensity range are disclosed. These include the use of photogray glass, the use of a pair of interference filters, and the utilization of a new liquid crystal notch filter in combination with an interference filter. 18 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {3}
}
Search for the full text at the U.S. Patent and Trademark Office
Note: You will be redirected to the USPTO site, which may require a pop-up blocker to be deactivated to view the patent. If so, you will need to manually turn off your browser's pop-up blocker, typically found within the browser settings. (See DOE Patents FAQs for more information.)
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.