(Sanitized)
Document Type:
Collection:
Document Number (FOIA) /ESDN (CREST):
CIA-RDP78B04747A002700020042-5
Release Decision:
RIPPUB
Original Classification:
K
Document Page Count:
16
Document Creation Date:
December 28, 2016
Document Release Date:
June 26, 2002
Sequence Number:
42
Case Number:
Content Type:
MEMO
File:
Attachment | Size |
---|---|
CIA-RDP78B04747A002700020042-5.pdf | 885.19 KB |
Body:
Approved For Release 2002/07/12 : CIA-RDP78BO4747AO02700020042-5
Declass Review by NIMA / DoD
Approved For Release 2002/07/12 : CIA-RDP78BO4747AO02700020042-5
Approved For Release 2002/07/12 : CIA-RDP78BO4747AO02700020042-5
i.s.m9.u (3til izati-or, of -e,p"'Ca_!^ kgeaprtsar
,. _ a .~~ war
Most UnefU1 light sources, tile s r~ R~.. lei I$l.~h z y lae a rar. xased in a. ram al,-
nd i s ccrar-c iriata s. i.s x- . o will not),: i.die ":)tar rs.y; to fo a c:oIIJ".Mete:-I
ILIA t ai.Porm or near uniform &rat ~ai.t*r, 4't+roy r- presented in a:s nddin8 order
, 1 4 , rte a_ -I- r-- -- _'
a...i F
and MOq
=.:s..~ 1 _.. _ . t a.. * s. a'Ei ci' a" 2`a."'1.~?:e4 t t3
t.Pin and r ~, ... _ . ~,. F a flW wn ; xa t: s s e,a
the 1a.,. aa P < s p ( W;a k -::. s pa:2dization r ani . In,
t ifor-uity of illumination arc j,r ves t 1 u .i i at= on much of the ;nr gy
in still 1on't., to !:iUer" that rro. ucc the a ir_ vulty abs rbu the peak ri`t:eak ? ' ate'
The fourth tho : uses "D L. 1
Ye' hOr7~i:~S d'(: " "t" r. s,:mim e to radYsw 'e: ibs. Lo c b"3w'
l I Cast lager .~'. &33 ? 11(r - -1 - -111 t~WIP L 5, tIJ iZ f LOCI.
o
X i ; is l' col liter ntc r boil
Of 11mt uniform a ebean-of Y rho
Yj 12 a{r ;) for. _ r an q k radial d .s a wc for one ray..,,
r'V : 0 .R o {#1'.nar +' it e u i r.va :
C : t. 1 A ..
'? ,, r d r
'phi.fl yields ;" $q(x'l) what* tz c.ea:t;;:.'& ka.,r;,,H'l.'.e we v
1 In a Pinzuad of $ ui- yr$ a e; 1z all the ,;yP ,iI path MGM, p. 't } y are K 4,
12 will also A an eqa7_ Phase r , i. ; i.e., - WAIL , N r
--
difference between two .;.1 . ._ "z ,.x
k .) r t` CU
is the ratio of the 4 -.r C _ + "a ; , da . -1--- __-- - -
~Y. WS~S Ye ~V'f5. .7.EiG15~.~w. x~ j( j y~i f ~s t dtry~. y Kg,9{ '? ~ k-L I"r~`;I~b .~a6 -. ~i~:e
4 .. /t4 4:.# ce air,
Approved For Release 2002/07/12: CIA-RDP78BO4747AO02700020042-5
tit (I)
A A MV FP e 2002/07/12: CIA-RDP78B7A002700020042-5
Page r.
Branch - Research
Gao trio ~"k3:,:c t 8 4 ? yicId the for the radial posit-, Nr
a an entering and rgin ,;', mow, r ? 'n G. Theae tppr a ticvr`
ol. _1 1. my be cmbind to giv+o
-din e
xi' - cone
~7 iS?
1 i 1 4h xg ii# id n hi'k the i''..f ,'!:. iziitrJ IS.
iAaera i. and 0 aie- the con-ven angle a of in.cid.~.rc 3 cI.F . G 'i 1 C L r$ fad} F.(% ro ??7 "L" :i
fiist2eran . c
at: differpnt 1~ha%~ad by
Ct7~ & d1~, tG E. 1 a .:a.! iS+.1!lf'rkSfs#.,
:1r .'S l"#bge1 tIl!L i '.f:LIV b f.s} x'b r f.
TeIAqcopj&,x t-
Approved Farr F2 le Sep ~4} 1Ofil :CIARDP]&ffl.4z74 4?70009PQ4g7S
STAT
AppruveiJ F
se 2002/07/12 : CIA-RDP78B04002700020042-5
Research
`-t,,s ca~tia:6~
V. `1.?'tP11 a +? .f, a k.4t`.f
d . 'j gg
rcr ti mAy;: ri1a .rJ:'" i i rt t>
STAT
A, 12 8 P" t
Approved For Release 2002/07/12 : CIA-RDP78BO4747AO02700020042-5
Approved For Release 2002/07/12 CIA-RDP70BO4747AO02700020042-5
r(Normalized Radial-Distarice Across Beam)
ie 1. Normalized Laser Intensity Model #112 with Hemispherical Reflectors;
RF Current = 78 ma; Intensity sured at the Plane Reflector)
Approved For Release 200 /07/12 : CIA-RDP78B04747A002700020042-5
Approved For Release 2002/07/12 CIA-RDP78B04747A002700020042-5
optical path p(rl)
Lens Surfaces
;z2 (r)
r) R2
Figure 2. Redistribution of Light Intensity in a Collimated Beam
Approved For Release 2002/07/12 : CIA-RDP78BO4747AO02700020042-5
STAT
vase 2002/07/12 : CIA-RDP78B04747A002700020042-5.
Page 10 of 15
20
1
40
60
P- (Energy Utilized)
80
Figure 3, Laser Energy Utilized in a Collimated Beam for a Given Ratio of Intensities
Approved For Release 2002/07/12 : CIA-RDP78BO4747AO02700020042-5
Approved or Rel
100%
STAT
Approved For ~elease- 2002/07/12 : CIA-RDP78B04747A00270002.0042-5
Method 2
(Unmodified Beam)
R (Normalized Radii)
Figure 4., Ratio of Intensities as a Function of Beam Radii
Approved For Release 2002/07/12 : CIA-RDP78BO4747AO02700020042-5
Page 11 of 15
:',~Ik-~DP78B047 10027000~OQ i 12 of 15
Curve
n
Method 2
(Unmodified
Beam)
P
a
100%
(0)%
b
95
5
c
80
20
d
so
50
Method 3
(Apodized
Beam)
P
37%
(39)
45
61
Figure S. Unmodified and Apodized 'Beam
Approved For Release 2002/07/1
Approved For Release 2002/07/12 CIA-RDP78BO4747AO02700020042-5
STAT
1=1.6.4 inches
Figure 6. Optics Redistributing and Recollimating :P- !-. 980 .of the .Incident Laser .Energy
Approved For Ro
Branch Research
(For: R1 = R2 = 2'; X (o) = 8' 1 n = 1.5 and.s 1.25)
Approved For Release 2002/07/12: CIA-RDP78B04747A0027~W20_042-5
Resultant
Intensity
Approved lease 2002/07/12-:-CIA-RDP78B04747A0027000.20042-5
.5
sr
Page 14 of 15
Figure 7.. Normalized Aspheric'. Surfaces Utilizing P =..63% of the Incident Energy
Approved For Release 2002/07/12 : CIA-RDP78BO4747AO02700020042-5
Approved For Release 2002/07/12 : CIA-RDP78B04747A002700O20042-5
D(sr) (Radial Displacement of a Ray)
Page 15 of 15
First Surface
S1(sr)
I 1 1
1.4 1.6 1.8
Figure $. Normalized Aspheric Surfaces Utilizing P = 98% of the Incident Energy
Approved For Release 2002/07/12 : CIA-RDP78B04747A002700020042-5