GB634776A - Improvements in and relating to non-reflecting optical bodies - Google Patents

Improvements in and relating to non-reflecting optical bodies

Info

Publication number
GB634776A
GB634776A GB34124/45A GB3412445A GB634776A GB 634776 A GB634776 A GB 634776A GB 34124/45 A GB34124/45 A GB 34124/45A GB 3412445 A GB3412445 A GB 3412445A GB 634776 A GB634776 A GB 634776A
Authority
GB
United Kingdom
Prior art keywords
coatings
light
reflection
wavelengths
dec
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
GB34124/45A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB634776A publication Critical patent/GB634776A/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 Optical Elements (AREA)
  • Optical Filters (AREA)

Abstract

634,776. Reflection reducing coatings. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 17, 1945, No. 34124. Convention date, Dec. 22, 1944. Drawings to Specification. [Class 97 (i)] An optical element, such as a lens made of glass, quartz or transparent synthetic resin, is provided on the outer surface thereof with reflection reducing coatings of different thicknesses to suppress reflection of light of unlike wavelengths. The coatings may consist of magnesium or calcium fluoride or a fatty acid compound as described in Specification 518,119, and the thicknesses of the two coatings on a lens are preferably chosen to suppress reflection of light of wavelengths 5000 A and 6000 A respectively. Curves indicating the percentage variation in the intensity of the stray light with change in wavelength are given.
GB34124/45A 1944-12-22 1945-12-17 Improvements in and relating to non-reflecting optical bodies Expired GB634776A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US634776XA 1944-12-22 1944-12-22

Publications (1)

Publication Number Publication Date
GB634776A true GB634776A (en) 1950-03-29

Family

ID=22049467

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34124/45A Expired GB634776A (en) 1944-12-22 1945-12-17 Improvements in and relating to non-reflecting optical bodies

Country Status (1)

Country Link
GB (1) GB634776A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3751133A (en) * 1970-05-13 1973-08-07 Minolta Camera Kk Color separation optical system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3751133A (en) * 1970-05-13 1973-08-07 Minolta Camera Kk Color separation optical system

Similar Documents

Publication Publication Date Title
JPS55101922A (en) Light splitter
GB634776A (en) Improvements in and relating to non-reflecting optical bodies
JPS522441A (en) Method of adjusting optical parts
CH249082A (en) Process for the production of round glass bodies with increased light refraction for lighting purposes.
AU121224B2 (en) Improvements in or relating tothe treatments the surface of glass to reduce the proportion of incident light reflected thereby
CA418776A (en) Light diffusing lens
AU1448344A (en) Improvements in or relating tothe treatments the surface of glass to reduce the proportion of incident light reflected thereby
ES167431A3 (en) A PROCEDURE FOR THE MANUFACTURE OF TRANSPARENT BODIES FOR LIGHT REFRACTION
FR1545056A (en) Frame for optical lenses, mirrors, protractor discs and other bodies of revolution, as well as bodies of revolution fitted with this frame
AU1588044A (en) Improvements in or connected with the manufactw'-e of transparent optical members
CA412833A (en) Light reflecting ornament
GB557515A (en) Improvements in and relating to composite light transmitting devices and method of manufacturing the same
FR950075A (en) Improvements in coating optical surfaces
AU123418B2 (en) Improvements in or relating to optical eyepieces
AU124423B2 (en) Improvements in or relating to optical eyepieces
GB1111399A (en) Improvements in or relating to lenses and other optical components and to optical instruments incorporating the same
CA421510A (en) Optical glass
FI17329A (en) Optical lenses and the like are also used for the production of light
AU123244B2 (en) Improvements in or relating to optical objectives
AU123133B2 (en) Improvements in or relating to optical objectives
AU123159B2 (en) Improvements in or relating to optical objectives
AU1627044A (en) Improvements in or relating to optical eyepieces
FR56848E (en) Improvements in optical instruments, such as glasses, binoculars, etc.
CA1028043A (en) Alignment of optical fibres to light emitting diodes
GB369096A (en) Improved reflector with mirrored back for artificial light sources