GB191113A - Apparatus for demonstrating or testing the transmission of light by ophthalmic glass and the like - Google Patents

Apparatus for demonstrating or testing the transmission of light by ophthalmic glass and the like

Info

Publication number
GB191113A
GB191113A GB2363221A GB2363221A GB191113A GB 191113 A GB191113 A GB 191113A GB 2363221 A GB2363221 A GB 2363221A GB 2363221 A GB2363221 A GB 2363221A GB 191113 A GB191113 A GB 191113A
Authority
GB
United Kingdom
Prior art keywords
demonstrating
testing
transmission
light
ophthalmic glass
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
GB2363221A
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.)
CHARLES STUART PYSER
MAYFAIR OPTICAL Co Ltd
Original Assignee
CHARLES STUART PYSER
MAYFAIR OPTICAL Co 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 CHARLES STUART PYSER, MAYFAIR OPTICAL Co Ltd filed Critical CHARLES STUART PYSER
Priority to GB2363221A priority Critical patent/GB191113A/en
Publication of GB191113A publication Critical patent/GB191113A/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
GB2363221A 1921-09-05 1921-09-05 Apparatus for demonstrating or testing the transmission of light by ophthalmic glass and the like Expired GB191113A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2363221A GB191113A (en) 1921-09-05 1921-09-05 Apparatus for demonstrating or testing the transmission of light by ophthalmic glass and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2363221A GB191113A (en) 1921-09-05 1921-09-05 Apparatus for demonstrating or testing the transmission of light by ophthalmic glass and the like

Publications (1)

Publication Number Publication Date
GB191113A true GB191113A (en) 1923-01-05

Family

ID=10198787

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2363221A Expired GB191113A (en) 1921-09-05 1921-09-05 Apparatus for demonstrating or testing the transmission of light by ophthalmic glass and the like

Country Status (1)

Country Link
GB (1) GB191113A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2558672A1 (en) * 1984-01-23 1985-07-26 Schott Glaswerke METHOD FOR INCREASING THE CONTRAST WHEN TAKING A VIEW OF A TRANSPARENT OBJECT USING A TELEVISION CAMERA

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2558672A1 (en) * 1984-01-23 1985-07-26 Schott Glaswerke METHOD FOR INCREASING THE CONTRAST WHEN TAKING A VIEW OF A TRANSPARENT OBJECT USING A TELEVISION CAMERA
GB2154389A (en) * 1984-01-23 1985-09-04 Zeiss Stiftung Method of increasing the contrast when monitoring a transparent object using a television camera

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