CA647464A - Optical compensator and tilt detector - Google Patents

Optical compensator and tilt detector

Info

Publication number
CA647464A
CA647464A CA647464A CA647464DA CA647464A CA 647464 A CA647464 A CA 647464A CA 647464 A CA647464 A CA 647464A CA 647464D A CA647464D A CA 647464DA CA 647464 A CA647464 A CA 647464A
Authority
CA
Canada
Prior art keywords
optical compensator
tilt detector
tilt
detector
compensator
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
CA647464A
Inventor
A. Armstrong John
W. Berry Douglas
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.)
Hilger and Watts Ltd
Original Assignee
Hilger and Watts Ltd
Publication date
Application granted granted Critical
Publication of CA647464A publication Critical patent/CA647464A/en
Expired legal-status Critical Current

Links

CA647464A Optical compensator and tilt detector Expired CA647464A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA647464T

Publications (1)

Publication Number Publication Date
CA647464A true CA647464A (en) 1962-08-28

Family

ID=35936113

Family Applications (1)

Application Number Title Priority Date Filing Date
CA647464A Expired CA647464A (en) Optical compensator and tilt detector

Country Status (1)

Country Link
CA (1) CA647464A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6002473A (en) * 1997-12-24 1999-12-14 Dove-Tec, Inc. Optical level and square

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6002473A (en) * 1997-12-24 1999-12-14 Dove-Tec, Inc. Optical level and square

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