GB558098A - Improvements in or relating to reflection-reducing layers on glass - Google Patents

Improvements in or relating to reflection-reducing layers on glass

Info

Publication number
GB558098A
GB558098A GB3453/42A GB345342A GB558098A GB 558098 A GB558098 A GB 558098A GB 3453/42 A GB3453/42 A GB 3453/42A GB 345342 A GB345342 A GB 345342A GB 558098 A GB558098 A GB 558098A
Authority
GB
United Kingdom
Prior art keywords
glass
reflection
march
atmospheric temperature
quarter
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
GB3453/42A
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Publication of GB558098A publication Critical patent/GB558098A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • G02B1/11—Anti-reflection coatings
    • G02B1/111—Anti-reflection coatings using layers comprising organic materials

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

558,098. Reflection-reducing coatings. RADIO CORPORATION OF AMERICA. March 16, 1942, Nos. 3453 and 3454. Convention dates, March 1, 1941, and Aug. 13, 1941. [Class 97 (i)] Reflection-reducing layers are formed on glass by treating the surface with the vapour of hydrofluoric acid of low concentration ; the surface residue comprises solid and stable fluorides of some of the metallic constituents of the glass. may have a refractive index approaching the square root of that of the glass &c., and may have an optical thickness approximately one quarter of a particular light wave length, or approximating an odd number of such quarter wave lengths. The treatment may be effected at substantially atmospheric temperature and pressure, and is applied to a glass sheet 13, by acid solution 12 in a container 10 surrounded by water which is circulated through a tray 17 and has a temperature four to ten degrees below atmospheric temperature. The film is stated to be hard and insoluble in various specified acids &c. Specifications 518,119. 537,591, [Group XXIII], 538,272 and 17519/39, (as open to inspection under Sect. 91), are referred to.
GB3453/42A 1941-03-01 1942-03-16 Improvements in or relating to reflection-reducing layers on glass Expired GB558098A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US558098XA 1941-03-01 1941-03-01

Publications (1)

Publication Number Publication Date
GB558098A true GB558098A (en) 1943-12-21

Family

ID=22000291

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3453/42A Expired GB558098A (en) 1941-03-01 1942-03-16 Improvements in or relating to reflection-reducing layers on glass

Country Status (1)

Country Link
GB (1) GB558098A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1026802C2 (en) * 2003-08-13 2008-12-16 Sumitomo Chemical Co Anti-glare optical film and method for producing it.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1026802C2 (en) * 2003-08-13 2008-12-16 Sumitomo Chemical Co Anti-glare optical film and method for producing it.

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