GB1352832A - Method of and apparatus for testing optical components or optical systems - Google Patents

Method of and apparatus for testing optical components or optical systems

Info

Publication number
GB1352832A
GB1352832A GB1352832DA GB1352832A GB 1352832 A GB1352832 A GB 1352832A GB 1352832D A GB1352832D A GB 1352832DA GB 1352832 A GB1352832 A GB 1352832A
Authority
GB
United Kingdom
Prior art keywords
produced
pattern
test pattern
scanning operation
signal
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
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.)
SIRA INSTITUTE
Original Assignee
SIRA INSTITUTE
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 SIRA INSTITUTE filed Critical SIRA INSTITUTE
Publication of GB1352832A publication Critical patent/GB1352832A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)

Abstract

1352832 Testing optical components photoelectrically SIRA INSTITUTE 20 July 1971 [2 Aug 1970] 32229/70 Heading G1A An optical system (or component) 11 is tested by transmitting a test pattern of electromagnetic radiation produced at 10 by a first scanning operation through the system, subjecting the test pattern to a further scanning operation before or after - e.g. at 16 - the pattern is transmitted by the system, deriving from the double-scanned pattern an electrical signal 23, and deriving from this signal the Modulation Transfer Function (MTF) of the system. The test pattern may be produced by a scanning operation such as the movement of a radial grating along a narrow slit, and the test pattern generator 10 may be of the form shown in Fig. 1 of Specification 970369. The second scan is produced by reciprocating an inclined mirror 16 or glass plate, or by oscillating laterally a lens. The analyzing device 19, which has a slit at its input, includes a plurality of photo-electric sensors and produces the signal 23, having components at the two scanning frequencies, representing the MTF of the system. The spatial frequency of the pattern produced by the initial scan at 10 may be varied incrementally or continuously.
GB1352832D 1970-08-02 1970-07-02 Method of and apparatus for testing optical components or optical systems Expired GB1352832A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3222970 1970-08-02

Publications (1)

Publication Number Publication Date
GB1352832A true GB1352832A (en) 1974-05-15

Family

ID=10335318

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1352832D Expired GB1352832A (en) 1970-08-02 1970-07-02 Method of and apparatus for testing optical components or optical systems

Country Status (2)

Country Link
DE (1) DE2138629A1 (en)
GB (1) GB1352832A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133540A (en) * 1982-12-24 1984-07-25 Plessey Co Plc Optical fibre apparatus
US4586816A (en) * 1982-12-24 1986-05-06 Plessey Overseas Limited Optical fibre spot size determination apparatus
WO2019106636A1 (en) * 2017-12-03 2019-06-06 Lumus Ltd. Optical device testing method and apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133540A (en) * 1982-12-24 1984-07-25 Plessey Co Plc Optical fibre apparatus
US4586816A (en) * 1982-12-24 1986-05-06 Plessey Overseas Limited Optical fibre spot size determination apparatus
WO2019106636A1 (en) * 2017-12-03 2019-06-06 Lumus Ltd. Optical device testing method and apparatus

Also Published As

Publication number Publication date
DE2138629A1 (en) 1972-02-17

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees