AUTOMATIC FOCUSING SYSTEM STAFF STUDY

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04770A000700030007-6
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 4
• Document Creation Date: December 28, 2016
• Document Release Date: October 8, 2004
• Sequence Number: 7
• Publication Date: February 20, 1967
• Content Type: MF

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16 February 1967
AUTOMATIC FOCUSING _ SYSTEM - STAFF STUDY
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To demonstrate the feasibility of automatically maintaining focus
uring the process of scanning film with rear projection systems.
?resent viewing devices (both direct and indirect) at NPIC have no
vision for automatic focus control. Varying environmental and opera-
_onal conditions often caused the viewed images to become defocussed...
_nears that the remedy for this situation is within the capabil'tj
contemporary technology.
L.. Current Procedures: The viewing of imagery by direct and in-
rect optical means has been complicated by the random defocusing of
_=,e caused by varying environmental conditions and by the trans-
of the imagery itself. This places an unnecessary burden upon
photo interpreter--constant, tedious, manual readjustment of the
r:~asing mechanism during the scanning process.
b. Origin of the Concept: The feasibility of developing an auto-
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