GB794690A - Interferometer - Google Patents

Interferometer

Info

Publication number
GB794690A
GB794690A GB2499656A GB2499656A GB794690A GB 794690 A GB794690 A GB 794690A GB 2499656 A GB2499656 A GB 2499656A GB 2499656 A GB2499656 A GB 2499656A GB 794690 A GB794690 A GB 794690A
Authority
GB
United Kingdom
Prior art keywords
reflector
interferometer
inclinable
zeiss
aug
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
GB2499656A
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.)
Carl Zeiss AG
Original Assignee
Carl Zeiss AG
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 Carl Zeiss AG filed Critical Carl Zeiss AG
Priority to GB2499656A priority Critical patent/GB794690A/en
Publication of GB794690A publication Critical patent/GB794690A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00—Measuring instruments characterised by the use of optical techniques
    • G01B9/02—Interferometers

Abstract

794,690. Interferometer. ZEISS - STIFTUNG, C., [trading as ZEISS, C. [Firm of]]. Aug. 15, 1956 [Aug. 27, 1955], No. 24996/56. Classes 97(1) and 97(2) In an interferometer as claimed in Specification 784.042 means are provided to produce two interference fringe images each occupying one half of the field whereby the inclination of the inclinable reflecting surface may be more accurately determined. As shown an incident light beam 5 is divided' by semi-reflecting surface 6 into beam 6<SP>1</SP>, 6<SP>11</SP> reflected in opposite directions around substantiially the same path by mirrors 7, 8 and the inclinable reflector 4 to be reinclined by the surface 3, two oppositely directed wedges 10, 11 being provided to vary the path lengths over two halves of the beam so that when the reflector 4 is tilted for example to the position 4<SP>1</SP> the interference fringe seen in one half of the beam 9 differ from those in the other half. Alternatively the surface of the reflector 4 may be formed as two oppositely directed wedges.
GB2499656A 1956-08-15 1956-08-15 Interferometer Expired GB794690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2499656A GB794690A (en) 1956-08-15 1956-08-15 Interferometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2499656A GB794690A (en) 1956-08-15 1956-08-15 Interferometer

Publications (1)

Publication Number Publication Date
GB794690A true GB794690A (en) 1958-05-07

Family

ID=6710572

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2499656A Expired GB794690A (en) 1956-08-15 1956-08-15 Interferometer

Country Status (1)

Country Link
GB (1) GB794690A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1186240B (en) * 1959-10-07 1965-01-28 Gen Precision Inc Optical interferometer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1186240B (en) * 1959-10-07 1965-01-28 Gen Precision Inc Optical interferometer

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