Published on CIA FOIA (foia.cia.gov) (https://www.cia.gov/readingroom)


IMAGE INTENSIFIER SCREEN

Document Type: 
CREST [1]
Collection: 
NGA Records (Formerly NIMA) [2]
Document Number (FOIA) /ESDN (CREST): 
CIA-RDP78B04770A002200060015-7
Release Decision: 
RIPPUB
Original Classification: 
S
Document Page Count: 
2
Document Creation Date: 
December 28, 2016
Document Release Date: 
March 24, 2005
Sequence Number: 
15
Case Number: 
Publication Date: 
January 5, 1965
Content Type: 
FORM
File: 
AttachmentSize
PDF icon CIA-RDP78B04770A002200060015-7.pdf [3]108.11 KB
Body: 
X1 R & D CATALOG, FORM DATE January 1965 1. PROJECT TITLE/CODE NAME 2. SHORT PROJECT DESCRIPTION This project is to develop J p a Image Intensifier Screen rear-projection screen which will, itself, intensify the brightness of an image projected upon it. 3. CONTRACTOR NAME 4. LOCATION OF CONTRACTOR Na NA 5. CLASS OF CONTRACTOR 6. TYPE OF CONTRACT NA NA 7. FUNDS S. REQUISITION NO. 9. BUDGET PROJECT NO. FY 19 65 NA NP-V-5 FY 19 $ 10. EFFECTIVE CONTRACT DATE (Begin - end) It. SECURITY CLASS. Title & Work Unclas s. FY 19 $ April 1965 -. March 1966 Sponsor Assoc. - Conf. 12. RESPONSIBLE DIRECTORATE/OFFICE/PROJECT OFFICER TELEPHONE EXTENSION DDI/iIPIC/P&DS Declass Review by NGA 13. REQUIREMENT/AUTHORITY Exploitation of reconnaissance films 14. TYPE OF WORK TO BE DONE Applied Research 15. CATEGORIES OF EFFORT MAJOR CATEGORY SUB-CATEGORIES Viewers and other inter retatio p equipment 16. END ITEM OR SERVICES FROM THIS CONTRACT/IMPROVEMENT OVER CURRENT SYSTEM. EQUIPMENT. ETC. One 12" x 12" prototype panel and associated circuitry. Monthly progress reports and the final technical report. 17. SUPPORTING OR RELATED CONTRACTS (Agency & Other)/COORDINATION The Naval Training Devices Center is supporting a contract wit to develop an image intensifier screen; however, this screen, when developed., will not satisfy our requirements which are much more rigid. Other intensifier screens have been developed for DOD and industr ; however, the are low resolution screens for portraying non-image tyDe a 18. DESCRIPTION OF INTELLIGENCE REQUIREMENT AND DETAILED TECHNICAL DESCRIPTION OF PROJECT (Continue on addi- tional page if required) Rear-projection viewers have come into standard usefor scanning and interpreting photo transparencies. Most of these materials are high- resolution and require great enlargement before the human visual system can assess the total information content. This enlargement, in turn, requires greater projection lamp power in order to attain the necessary image brightness over the entire viewing screen. Increased lamp power is accompanied by greatly increased heat incident on the film so that it is distorted or damaged. There are in existence various techniques for cooling at the film plane, e. g. . . dichroic 19. APPROVED BY AND DATE OFFICE DEPUTY DIRECTOR DDCI Approved Fo r Release 2005/05/02 : CIA-RDP78B0 770A002200060015-7 FOR 1- 64 2338 SECRET Approved Fo lease 2005/05/c C A--RDP78B0477 002200060015-7 (When Filled In) 19 7 t/2 r I I& Approved Fo lease 2005/05/02: CIA-RDP78BO4740002200060015-7 0 R & D CATALOG FORM (Continued) 18. mirrors, fans, liquid gates, etc.. In spite of these techniques, stationary or slowly moving film is still subject to heat damage at high magnification. It has been postulated that this problem might be solved by intensifying the image at the viewing screen. Such a screen would require minimal power in the projection illumination, but would produce a bright image for the viewer. The primary objective is. that,under nominal highlight illumination of approximately 10 foot candles, the image-intensifier screen should provide the viewer with an image of adequate gain and brightness while still exhibiting satisfactory performance in many other aspects, such as, resolution, tone range, linearity, color temperature, viewing angle, response time, size, life and cost. A secondary objective is to provide a means for controlling modulation of image contrast, such as tone-reversal and compression 0 expansion. Approved For Release 2005/05/02 :, CIA-RDP78BO477OA002200060015-7

Source URL: https://www.cia.gov/readingroom/document/cia-rdp78b04770a002200060015-7

Links
[1] https://www.cia.gov/readingroom/document-type/crest
[2] https://www.cia.gov/readingroom/collection/nga-records-formerly-nima
[3] https://www.cia.gov/readingroom/docs/CIA-RDP78B04770A002200060015-7.pdf