INVESTIGATION OF POLARIZING PANELS TO COVER CEILING LIGHT FIXTURES.

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04770A000600070001-9
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 2
• Document Creation Date: December 28, 2016
• Document Release Date: July 2, 2004
• Sequence Number: 1
• Publication Date: October 7, 1965
• Content Type: LETTER

FROM:
DATE
7 October 1965
r NPIC/P&DS
SUBJECT: Inrre;tigatiori.of Polaxizirg Pan. :s to Corer Cei1 g Light Fixtures.
T ch ;; a J at c, polarized light panel mounted over conventional fluorescent
? .g ,l fit- es i n tie Library of Congress nnex . They c 4..n the offices and
working (n v in. ti-.e corridors) on the r floor. T'xn:i.s is the floor
over + ground floor. I t: '2,---d to several pe who worked in the offices
:.,.bout c., nc=rw lights. (They a ed to have rather old-fashioned overhead lights
not comp:aruble to the fluorescent, fixtures we now have Lai ~ The
opinion: seemed to vary from indifference to enthusiasm f*. the new lights.
The poiar.iaed light fixtures seem to cast a somewhat more diffused, softer
11.71ty but to tell the truth the difference between the library's overhead
fluorescent liI:ts rid ours seems rather mrlxl to nee.
attached is the literature from the manufacturer.
Declass Review by NGA.
Approved For Release 2OT 4 742V' W-4WP78goa77fAnnnFnmmnnn1-a
FORM
5.?61 1831
lease 2004/07/29: CIA-RDP78BO
 Approved Fo~elease 2004/07/29: CIA-RDP78BO47 000600070001-9
R~c~;~_ oc3/~a
SUPPORT/SERVICE~~ R 1
(The following info is required when r qm s are _ _; v ... ._
NPIC DIV/DETACH PROCESSING RQMT
SUPPORT REQUESTED OF
(The following info is required when rants are levied i'or _nternal Support)
DIV/STAFF DATE OF RQ T 18 August 1965 CONTROL NO.
SUPPORT REQUESTED OF P&DO PROJ Or J
PRIORITY DATE REQUIRED 15 October 1965
The ~xrcr_. remaested is in Support of a depa-r~me-nta-l. ^ Photo interpretation proj.;
.
ter.-p?:ono 41 nzer -p etation project. It will result in, ^Hard copy report;
_ _ rort o n,^_o
(. ); '~'
~.iasi c service only,
I- J.tiari o Polorized Lighting
wC PPC= RVI REQUESTED: Support
/ fro NPIC will probably consist of:
:-c _ Reproduction; E] Mensuration; ^ Graphics; ^ ADP; ^ Editing;
(c:_plain below) -- (Include statement as to estimated amount of work required
pc co:ponent(s); i.e., number of contact prints, enlargements, boards, etc.)
This project covers an investigation of polorized lighting for PI spaces.
It will result in recommendations to IAD & PAG and is in direct reply to a
requirement of IAD.
3. URGENCY JUSTIFICATION: (If immediate support is required a statement of jusL~ification
must be made on this form, )
CONFIDENTIAL
Approved For Release 2004/07/29 : CIA-RDP78B04770A0006000700 9 714 -41
, LT