GB1171294A - Light-Transmitting Screens - Google Patents

Light-Transmitting Screens

Info

Publication number
GB1171294A
GB1171294A GB4866565A GB4866565A GB1171294A GB 1171294 A GB1171294 A GB 1171294A GB 4866565 A GB4866565 A GB 4866565A GB 4866565 A GB4866565 A GB 4866565A GB 1171294 A GB1171294 A GB 1171294A
Authority
GB
United Kingdom
Prior art keywords
light
filter
blind
screen
nov
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
GB4866565A
Inventor
Karel Frans De Troeyer
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.)
Agfa Gevaert NV
Original Assignee
Agfa Gevaert NV
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 Agfa Gevaert NV filed Critical Agfa Gevaert NV
Priority to GB4866565A priority Critical patent/GB1171294A/en
Priority to NL6615996A priority patent/NL6615996A/xx
Priority to BE689708D priority patent/BE689708A/xx
Publication of GB1171294A publication Critical patent/GB1171294A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G02B5/23—Photochromic filters
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G02C7/102—Photochromic filters
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C2202/00—Generic optical aspects applicable to one or more of the subgroups of G02C7/00
    • G02C2202/16—Laminated or compound lenses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • General Health & Medical Sciences (AREA)
  • Liquid Crystal (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)

Abstract

1,171,294. Laminates. GEVAERT-AGFA N.V. 15 Nov., 1966 [16 Nov., 1965], No. 48665/65. Heading B5N. [Also in Divisions C4 and G2] A light transmitting screen comprises a photochromic filter and a blind which provides light paths with opaque, non-light-reflecting boundaries which prevent light rays at incident angles above a certain limit reaching the filter. A sunglass lens comprises a filter 13 of glass impregnated with silver halide crystals and a blind consisting of a plurality of adjacent small passages 15 of circular, square or polygonal cross-section having radiation absorbent walls. Other filters, e.g. a polarizing layer, may be incorporated in the lens. The photochromic filter may be of liquid, organic or inorganic material, rigid or resilient and may comprise a coating on a glass or plastics substrate. Other forms of blind include a venetian blind structure or a sandwich of transparent sheets each having a pattern printed on one side. The screen may be used for windscreens, windows and protection against nuclear flash; light passing through the screen falls on the eye, or on recording material such as photo-electric or photo-resistive cells.
GB4866565A 1965-11-16 1965-11-16 Light-Transmitting Screens Expired GB1171294A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB4866565A GB1171294A (en) 1965-11-16 1965-11-16 Light-Transmitting Screens
NL6615996A NL6615996A (en) 1965-11-16 1966-11-14
BE689708D BE689708A (en) 1965-11-16 1966-11-16

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4866565A GB1171294A (en) 1965-11-16 1965-11-16 Light-Transmitting Screens

Publications (1)

Publication Number Publication Date
GB1171294A true GB1171294A (en) 1969-11-19

Family

ID=10449466

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4866565A Expired GB1171294A (en) 1965-11-16 1965-11-16 Light-Transmitting Screens

Country Status (3)

Country Link
BE (1) BE689708A (en)
GB (1) GB1171294A (en)
NL (1) NL6615996A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007031892A1 (en) * 2005-09-15 2007-03-22 Koninklijke Philips Electronics N.V. Optical filter
WO2014012036A1 (en) * 2012-07-13 2014-01-16 Adlens Beacon, Inc. Fluid lenses, lens blanks, and methods of manufacturing the same
WO2015136088A1 (en) * 2014-03-14 2015-09-17 Essilor International (Compagnie Generale D'optique) An optical see-trough head-mounted device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007031892A1 (en) * 2005-09-15 2007-03-22 Koninklijke Philips Electronics N.V. Optical filter
WO2014012036A1 (en) * 2012-07-13 2014-01-16 Adlens Beacon, Inc. Fluid lenses, lens blanks, and methods of manufacturing the same
CN104620141A (en) * 2012-07-13 2015-05-13 阿德伦丝必康公司 Fluid lenses, lens blanks, and methods of manufacturing the same
US9535264B2 (en) 2012-07-13 2017-01-03 Adlens Beacon, Inc. Fluid lenses, lens blanks, and methods of manufacturing the same
CN104620141B (en) * 2012-07-13 2017-04-05 阿德伦丝必康公司 Fluid lens, lens blank and its manufacture method
WO2015136088A1 (en) * 2014-03-14 2015-09-17 Essilor International (Compagnie Generale D'optique) An optical see-trough head-mounted device

Also Published As

Publication number Publication date
BE689708A (en) 1967-05-16
NL6615996A (en) 1967-01-25

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