"DEVELOPMENTS AT CARL ZEISS AND SCHOTT - UND GENOSSEN, JENA"

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP82-00457R013400090010-7
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 2
• Document Creation Date: December 20, 2016
• Document Release Date: March 7, 2006
• Sequence Number: 10
• Publication Date: August 27, 1952
• Content Type: REPORT

Approved. For Release 2006/04/20 : CIA-RDP82-00457RO13400090010-7
CLASS I,F.I CATI ON
. CENTRAL INTELLIGENCE AGENCY
SECRET/CONTROL ~Y~ a~
- U.S. t:~O tICLLS O'JY11..1
SECURITY INFORMATION
INFORMATION REPORT REPORT NO.
CD NO.
COUNTRY East Germany
SUBJECT Developments at Carl Zeiss and
Schott and Genosaen, Jena
DATE OF
25X1INFO.
yr in? unirtD STATES, WITHIN THE MEANING OF TITLE 18, SECTIONS 793
AND 794, OF THE U.S. CODE, AS AMENDED. ITS TRANSMISSION OR REVE-
LATION OF ITS CONTENTS TO OR RECEIPT BY AN UNAUTHORIZED PERSON-IS
PROHIBITED 8Y LAW. THE REPRODUCTION OF THIS FORM IS PROHIBITED.
STATE
DATE DISTR.
NO: OF PAGES
NO, OF ENCLS,
(LISTED BELOW)
SUPPLEMENT TO
25X1
e7,. August. 1952
THIS IS UNEVALUATED INFORMATION
1. Rebuilding of the SuedWerk at Zeiss
The .rebuilding of the large assembly hall has essed to such an extent
that, it is anticipated that
the p range n ers and periscopes can begin by 15 May.
1952. Several long spindle lathes.(Lang-Spindel-Drehbaenke), about 10 or
12 meters long, for the turning of periscope housings, have already been
installed.
Periscope production by Zeiss
No periscopes have been assembled in Zeiss since the end of the war. Only
in the last two years have periscope heads (including objectives and upper
prism sets) been manufactured by Zeiss and sent to.the USSR, for final
assemblage. It is now generally said in Zeiss that the periscopes produced
in this manner have been found to be below standard as a result of inaccuraciesf
and the Russians have therefore been pressing ..for the assembly hall at Zeiss
to be rebuilt as soon as possible to enable the-periscopes to be fully -
assembled there. The periscope housings are., to be rough cast by the VEB
Stahl- and Walzwerk In Groeditz or Hennigsdorf and sent to Zeiss for turning
and assemblage.
~. . ~, ... vc.wk)vu, a lsuig oase prea.ictor
for the use of long range heavy coastal batteries. The set included a range
finder of a 3, 4 or 6 meter base and functioned similarly to an
AA- predictor
in that the guns were automatically controlled from the predictor by a follow-
the-pointer system (Folgezeiger-System). This equipment is now being redeveloped
by Zeiss and production is expected to commence later this year: The total
crew for operating the predictor, range finder and all accessories,(excluding
the gun crew) amounts to 27 men,
CLASSIFICATION SECRET/CONTROL- U.S. OFFICIALS ONLY
NSRO
F81
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Approved For Release 2006/04/20 : CIA-RDP82-00457RO13400090010-7
 Approved For Release 2006/04/20 : CIA-RDP82-00457RO13400090010-7
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SV //CONT1ROL - U. S. OF Y3X IALS 0NLX'
Searchlights (zeisj
In addition to the searchlights of 90 mm decimeter (sic) already being
produced.,,, production of searchlights of 150 ma decimeter (sic) has now been
started.
urgehcyy
C:l,.ax view creens: Schott
a: These screens are made from two kinds of glass:
in a meeting of'the main planning committee (Planungahauptleitung) of Zeiss,
the head of the comml.ttee.(ilanungshauptleiter), Schreiber,, said that the
orders now placed with Zeiss on behalf of the Seepolizei were of the utmost
OrAerp for See ,izei (Zeiss)
1) the large rectangular screens centrally bored, is made of Jenaer
T plax glees, which is particularly resistant to great changes Of
temperature. The first orders were, however,,: completed from mirror
glass left over from another order;
the central rotating disc is made from special optical glass K 13
or SK 5 both of which are glasses of considerable- "intensity' and
capable of withstanding a great deal of strain.
When negotiations took place in the fall of 1951 with repreeeirtatives
of Askania Teltow, regarding the order for these screens,1 it was said
that the principal difficulty lay in making the large central boring to
accommodate -the rotating disc. As the Askania representatives said
that the discs would have to: rotate at the unusually high speed of
2,200 to 2),500 r..p.ma, this boring would have. to be accurate at least
ter a tenth of a millimeter. Also..; the hole in the rotating disc for
the driving spindle woult have to be exactly central and accurate to at
least a tenth of "a millimeter. The order was given to Zeiss only because
.they were capable of carrying out such accurate work.
25X1
25X1
S ' f COVMOL - U. S. c ICIALS ONLY
Approved For Release 2006/04/20 : CIA-RDP82-00457RO13400090010-7