RECORD OF INVENTION FOR ADVANCED RHOMBOID ATTACHMENT

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04770A000400010004-4
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 4
• Document Creation Date: December 28, 2016
• Document Release Date: June 23, 2006
• Sequence Number: 4
• Publication Date: September 21, 1967
• Content Type: MF

Approved For Release 2006/06L23 b~ff P78BO477OA000400010004=4
A
NPIC/TDS/D-1031-67
21 Septe ber 1$?
NDUM FOR: Assistant. for Technical Deevelopsp.:ent, NPIC
Chieef,.,.Development Staff, TD
Chief, Exploitation Systems Branch, S
SIfl3JECT : Record of Invention for Advanced Phomhoii d Att sent
1 In 1965 the Development Staff, through two members of its technical
staff, aund the undersigned conceived the optical attachment 25X1
which is described in the subject Record of Invention. The conception was
subsequently reduced to practice by the 25X1
2. Although has filed a declaration of their intention not 25x1
file for a-pat , IT. the Contracting Officer's opinion 25X1
that the Government should make claim to its patent rights there y 25x1
preventing others from caking such a claim.
3. The attachment describes the invention giving the appropriate data
requested. As is pointed out in the attachment and the undersigned 25x1
for the concept and characteristics of the invention; however,
implemented the physical configuration (under the direction of 25X1
Therefore, it is the undersign's opinion that those at 25x1
onible for this implementation should be considered as joint 25X1
inventors with and it would be mandatory that they be joined 25x1
in any Government action a ore the Patent Office.
Exploitation System Branch, DS
Distribution:
Orig $ I Addressee
1 - NPIC/TD/DS
1.2 -- NPIC/T'D/DS/ESB
NPIC/TDS/DS
(21 Sept b7)
~. f> SR3Jf'. t
C E T E t eer fYam 2 lomafic
1 h9{dClllg BiiG
 Approved For Release 2006/06/23: CIA-RDP78B04770A000400010004-4
Approved For Release 2006/06/23: CIA-RDP78B04770A000400010004-4
 Approved For Release 2006/061 eP78B04770A0004000 10004-4
Attachment to I
NpIC/T[i-s,/D-1031-( 7
21 September 1967
10. Brief Dcscrintion of Invention
This invention. consists of a syste* of optical.:+ iements combined
to create an instrument which converts a steereomaicroscope into a micro-
stereoscope. A stereomicroscope is an instrument typically with two
convergent optical paths, whereby the operator can view a three-dimen-
sional object in a steivsc ic mode. iecause~the -two optical paths
converge to permit viewing a single object. the instrument cannot be
employed to view stereoscopic photogrWhy, (two two-dimensional images
recorded from a slightly different viewing angle). To convert "thw
stereomicroscope into a microstereoseofpe, the convergent optical paths
must be redirected to permit each one to separately view one of the
stereoscopic images.
Simple devices to perforw this task have been in existence for a
period of years, however, the subject invention substantially improves
the basic concept by (1) increasing the total resolving power of the
instrument, (2) providing greater objective separation and (3) incur-..
porating independent optical image rotation in each optical path.
P 1
SEC
 Approved For Release 2006/06/23': CIA-RDP78B04770A000400010004-4
SECRET
The inventi ' is _im'le ted' as shown schematically in Figure 1.
The basic stereonicrose e. is, a ntlined ins red showing the two optical
paths potentially convergcat point Y. The Rhomboid attachment, shown
in green observes two inde 1 dent objects at, poii is Xl and X2 . An
optical element (objective !ores) A prevagniPies'the image two times
and transmits it through an image rotation elent B. This element
creates a rotation of the image when the element itself is rotated
about its optical axis. The optic", path is then reflected by optical'. '
surfaces C, P. E .and P into the ob jeetive system of the stereomicro-
scope which presents the image to be .Viewed with eyepieces H. The
rhomboid arm can be rotated about an axis through the points 0 and F,
thereby, allowing the operator to position the objective,A over differ-
ent object points without altering the eyepiece position.
The rhomboid attachment isiieresaes the erforaance characteristics of
existing stereomicroscopes to tyre extent that they-, can be uti tined in the
future. Success of the concept and implementation is indicated from the
initial operation cu tent 'of over two hundred tits at a total ex-
penditure of over
re responsible for initiating and monitoring
development contracts with private iadustr , The basic design para-
meters were established by and the physical
i lementation was tformed under their direction by thel
Task Order 2. For this reason those responsible atl should
be joined in any action before the Patent Office.
15. The in a assign. -rights tot he . overniaent as stated in CIA Regula-
tion and Executive fo r 10096 amended by Executive Order
10930. If then Patens Board find the contribution and interest of the
Government is insufficient to justify assignment of the rights, the
inventors desire to retain the entire: rights title and interest. If
the Government elects to prosecute this invention: it is requested that
the inventors be permitted to retain co srcial rights.