GB455777A - Improvements in galilean field glasses - Google Patents

Improvements in galilean field glasses

Info

Publication number
GB455777A
GB455777A GB17678/36A GB1767836A GB455777A GB 455777 A GB455777 A GB 455777A GB 17678/36 A GB17678/36 A GB 17678/36A GB 1767836 A GB1767836 A GB 1767836A GB 455777 A GB455777 A GB 455777A
Authority
GB
United Kingdom
Prior art keywords
galilean
objective
field glasses
telescope
rathenow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB17678/36A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EMIL BUSCH A G OPTISCHE IND
Original Assignee
EMIL BUSCH A G OPTISCHE IND
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EMIL BUSCH A G OPTISCHE IND filed Critical EMIL BUSCH A G OPTISCHE IND
Publication of GB455777A publication Critical patent/GB455777A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices

Abstract

455,777. Telescope objectives. BUSCH AKT.-GES. OPTISCHE INDUSTRIE, E., 5, Berliner Strasse, Rathenow, Germany. June 25, 1936, No. 17678. Convention date, July 6, 1935. Drawings to Specification. [Class 97 (i)] In a Galilean telescope the objective consists of two cemented lenses of which the indices of refraction n1 and n2 and the AbbÚ values V1 and V2 conform to the relationship Such an objective is corrected for spherical aberration and astigmatism over a large aperture. Data are given.
GB17678/36A 1935-07-06 1936-06-25 Improvements in galilean field glasses Expired GB455777A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE455777X 1935-07-06

Publications (1)

Publication Number Publication Date
GB455777A true GB455777A (en) 1936-10-27

Family

ID=6539083

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17678/36A Expired GB455777A (en) 1935-07-06 1936-06-25 Improvements in galilean field glasses

Country Status (2)

Country Link
FR (1) FR810013A (en)
GB (1) GB455777A (en)

Also Published As

Publication number Publication date
FR810013A (en) 1937-03-13

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