LETTER (Sanitized)

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04770A000100020006-4
• Release Decision: RIPPUB
• Original Classification: C
• Document Page Count: 4
• Document Creation Date: December 28, 2016
• Document Release Date: April 24, 2012
• Sequence Number: 6
• Publication Date: October 2, 1964
• Content Type: LETTER

Declassified in Part - Sanitized Copy Approved for Release 2012/04/24: CIA-RDP78BO477OA000100020006-4
October 2, 1964.
Arlington, Virginia 22209
Roaslyn Station
Gentlemen:
Bausch & Lomb is pleased to submit for your evaluation a Cost and
Technical Proposal for the design and manufacture of one (1) or
two (2) pair of Low Power Wide Field Objectives for use with the
Bausch & Lomb High Power Stereoviewer. Copies of our Technical
Proposal are enclosed, as are copies of an outline drawing of
the proposed objective,
A fixed .)rice contract is anticipated. Our Cost Analysis is
included as Attachment A.
Delivery of the end item is estimated at within 12 weeks after-
authorization to proceed.
If you have any questions concerning this proposal, please contact
the writer directly.
GJJ: by o ogramme r c contracts Section
Declassified in Part - Sanitized Copy Approved for Release 2012/04/24: CIA-RDP78BO477OA000100020006-4
 Declassified in Part - Sanitized Copy Approved for Release 2012/04/24: CIA-RDP78BO477OA000100020006-4
Declassified in Part - Sanitized Copy Approved for Release 2012/04/24: CIA-RDP78BO477OA000100020006-4
 Declassified in Part - Sanitized Copy Approved for Release 2012/04/24: CIA-RDP78BO477OA000100020006-4
B&L 8334
TECHNICAL DESCRIPTION
and
DESIGN OBJECTIVES
for
PROTOTYPES
of a
BAUSCH & LOMB
WIDE FIELD OBJECTIVE
This lens is a low magnification, wide field microscope
objective. It is approximately parfocal with the higher
magnification objectives used with the Bausch & Lomb Dyna-
Zoom Laboratory Microscope. This objective may be used
with the four position nosepiece without interfering with
the other objectives.
The real field of a microscope is equal to the field of
the eyepiece divided by the magnification of the objective.
The only way to get a significant increase in field is to
lower the magnification of the objective. Lower magnifica-
tion necessarily means increased working distance and below
magnifications of approximately 3.5X the objectives cease
to be parfocal.
The objective lens covered by this description has a prism
cluster in the lower conjugate that folds up the optical
path enabling the lens to have a shoulder-to-object distance
the same as that of the other lenses used on the DynaZoom
Microscope. This prism cluster does not invert or revert
the image.
The nominal magnification of this lens , is 1.3X. The field
depends on the eyepiece. With the Bausch & Lomb lOX Wide
Field Eyepiece, Catalog Number 31-05-60, the real field is
approximately 14.Omm.
No resolution requirement. is specified for the prototype
lot since the primary objective is a wider field for initial
location of areas of interest. Specifications for follow-on
quantities will be determined after evaluation of the
prototype.
BAUSCH & LOMB INCORPORATED
Rochester, N.Y. 14602
September , 1964
Declassified in Part - Sanitized Copy Approved for Release 2012/04/24: CIA-RDP78BO477OA000100020006-4