GB1530488A - Apparatus for testing zoom lenses - Google Patents

Apparatus for testing zoom lenses

Info

Publication number
GB1530488A
GB1530488A GB1904476A GB1904476A GB1530488A GB 1530488 A GB1530488 A GB 1530488A GB 1904476 A GB1904476 A GB 1904476A GB 1904476 A GB1904476 A GB 1904476A GB 1530488 A GB1530488 A GB 1530488A
Authority
GB
United Kingdom
Prior art keywords
testing
zoom lenses
lens
zoom lens
passed
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
GB1904476A
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.)
VINTEN Ltd
Original Assignee
VINTEN Ltd
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 VINTEN Ltd filed Critical VINTEN Ltd
Priority to GB1904476A priority Critical patent/GB1530488A/en
Publication of GB1530488A publication Critical patent/GB1530488A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/02—Testing optical properties
    • G01M11/0292—Testing optical properties of objectives by measuring the optical modulation transfer function

Abstract

1530488 Testing zoom lens W VINTEN Ltd 29 April 1977 [8 May 1976] 19044/76 Heading G2J In testing T.M.F. of a zoom lens, the test pattern is passed through the lens and then passed back through the lens before inspection. By this means the problems associated with varying effective focal lengths are solved.
GB1904476A 1977-04-29 1977-04-29 Apparatus for testing zoom lenses Expired GB1530488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1904476A GB1530488A (en) 1977-04-29 1977-04-29 Apparatus for testing zoom lenses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1904476A GB1530488A (en) 1977-04-29 1977-04-29 Apparatus for testing zoom lenses

Publications (1)

Publication Number Publication Date
GB1530488A true GB1530488A (en) 1978-11-01

Family

ID=10122822

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1904476A Expired GB1530488A (en) 1977-04-29 1977-04-29 Apparatus for testing zoom lenses

Country Status (1)

Country Link
GB (1) GB1530488A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3007514A1 (en) * 1980-02-28 1981-09-10 Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar Testing optical image forming system - using plane mirror to form auto-collimator producing image free of aberration
EP0692707A1 (en) * 1994-07-12 1996-01-17 AEROSPATIALE Société Nationale Industrielle Method for caracterising an optical instrument by autocollimation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3007514A1 (en) * 1980-02-28 1981-09-10 Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar Testing optical image forming system - using plane mirror to form auto-collimator producing image free of aberration
EP0692707A1 (en) * 1994-07-12 1996-01-17 AEROSPATIALE Société Nationale Industrielle Method for caracterising an optical instrument by autocollimation
FR2722571A1 (en) * 1994-07-12 1996-01-19 Aerospatiale Societe Nationa METHOD FOR CHARACTERIZING AN OPTICAL INSTRUMENT BY SELF-COLLIMATION AND AN INSTRUMENT FOR IMPLEMENTING IT

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee