GB1154500A - Spectral Filter - Google Patents

Spectral Filter

Info

Publication number
GB1154500A
GB1154500A GB5634467A GB5634467A GB1154500A GB 1154500 A GB1154500 A GB 1154500A GB 5634467 A GB5634467 A GB 5634467A GB 5634467 A GB5634467 A GB 5634467A GB 1154500 A GB1154500 A GB 1154500A
Authority
GB
United Kingdom
Prior art keywords
filter
glass
green
red
screen
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
GB5634467A
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.)
CHICAGO DIAL CO
Original Assignee
CHICAGO DIAL CO
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 CHICAGO DIAL CO filed Critical CHICAGO DIAL CO
Publication of GB1154500A publication Critical patent/GB1154500A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C4/00—Compositions for glass with special properties
    • C03C4/08—Compositions for glass with special properties for glass selectively absorbing radiation of specified wave lengths
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/095—Glass compositions containing silica with 40% to 90% silica, by weight containing rare earths
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G02B5/226—Glass filters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Glass Compositions (AREA)
  • Luminescent Compositions (AREA)

Abstract

1,154,500. Coloured glass composition. CHICAGO DIAL CO. 12 Dec., 1967 [12 Dec., 1966; 23 Oct., 1967], No. 56344/67. Heading ClM. [Also in Division H1] A cathode-ray tube having a fluorescent screen supporting on the inner surface a mixture of blue, green, and red colour-emitting phosphors is combined with an optical filter for viewing the screen, the filter comprising neutral glass modified by inclusion of 3-5% weight of a Nd compound, calculated as the oxide in a sheet of glass 1/ 8 inch thick. The filter has substantially higher relative green and red transmission and selective yellow absorption than a neutral-density glass filter, and the light from the screen therefore exhibits enhanced intensity in the green, red and blue, and overall enhanced contrast and brightness. An exemplified filter - glass composition is composed, in weight per cent, of: 5i0 2 , 65-75; Na 2 O, 12-19; CaO, 6-13; MgO, 1-4; A1 2 0 3 , 0À2-4; Nd 2 O 3 , 3-5. If the thickness of the sheet differs from # inch, the proportion of Nd 2 O 3 is varied so that the amount per unit area is constant. The filter may be formed by incorporation of the Nd in the face-plate of the tube.
GB5634467A 1966-12-12 1967-12-12 Spectral Filter Expired GB1154500A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US60118466A 1966-12-12 1966-12-12
US67784867A 1967-10-23 1967-10-23

Publications (1)

Publication Number Publication Date
GB1154500A true GB1154500A (en) 1969-06-11

Family

ID=27083809

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5634467A Expired GB1154500A (en) 1966-12-12 1967-12-12 Spectral Filter

Country Status (5)

Country Link
BE (1) BE707862A (en)
DE (1) DE1596775A1 (en)
FR (1) FR1561177A (en)
GB (1) GB1154500A (en)
NL (1) NL6716864A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3135910A1 (en) * 1980-09-10 1982-05-27 Nippon Electric Glass Co., Ltd., Otsu, Shiga GLASS FOR COLOR CATHODE RAY TUBES
GB2250133A (en) * 1990-09-27 1992-05-27 Mitsubishi Electric Corp Color cathode ray tube.
WO2009083867A1 (en) * 2007-12-20 2009-07-09 Philips Intellectual Property & Standards Gmbh Color filter for a light emitting device
US8770749B2 (en) 2010-04-15 2014-07-08 Oakley, Inc. Eyewear with chroma enhancement
US9134547B2 (en) 2011-10-20 2015-09-15 Oakley, Inc. Eyewear with chroma enhancement
US9575335B1 (en) 2014-01-10 2017-02-21 Oakley, Inc. Eyewear with chroma enhancement for specific activities
US9905022B1 (en) 2015-01-16 2018-02-27 Oakley, Inc. Electronic display for demonstrating eyewear functionality
US10073282B2 (en) 2014-11-13 2018-09-11 Oakley, Inc. Eyewear with variable optical characteristics
US10871661B2 (en) 2014-05-23 2020-12-22 Oakley, Inc. Eyewear and lenses with multiple molded lens components
US11112622B2 (en) 2018-02-01 2021-09-07 Luxottica S.R.L. Eyewear and lenses with multiple molded lens components
US11579470B2 (en) 2012-05-10 2023-02-14 Oakley, Inc. Lens with anti-fog element
US12124116B2 (en) 2017-10-20 2024-10-22 Luxottica S.R.L. Eyewear with variable transmission lens

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS559309A (en) * 1978-07-03 1980-01-23 Tokyo Shibaura Electric Co Light illuminating bulb
JPS5814374B2 (en) * 1979-03-20 1983-03-18 株式会社保谷硝子 Green contrast filter for CRT display device
CN117854656B (en) * 2024-03-07 2024-05-10 四川大学 Method for optimizing photon glass saturation by quantitatively adding broad-spectrum absorber

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3135910A1 (en) * 1980-09-10 1982-05-27 Nippon Electric Glass Co., Ltd., Otsu, Shiga GLASS FOR COLOR CATHODE RAY TUBES
US4390637A (en) * 1980-09-10 1983-06-28 Nippon Electric Glass Company, Limited X-Ray absorbing glass for a color cathode ray tube having a controlled chromaticity value and a selective light absorption
GB2250133A (en) * 1990-09-27 1992-05-27 Mitsubishi Electric Corp Color cathode ray tube.
US5315209A (en) * 1990-09-27 1994-05-24 Mitsubishi Denki Kabushiki Kaisha Color cathode ray tube with selective light absorption film
GB2250133B (en) * 1990-09-27 1995-05-03 Mitsubishi Electric Corp Color cathode ray tube with selective light absorption film
WO2009083867A1 (en) * 2007-12-20 2009-07-09 Philips Intellectual Property & Standards Gmbh Color filter for a light emitting device
US10502980B2 (en) 2010-04-15 2019-12-10 Oakley, Inc. Eyewear with chroma enhancement
US10976574B2 (en) 2010-04-15 2021-04-13 Oakley, Inc. Eyewear with chroma enhancement
US9383594B2 (en) 2010-04-15 2016-07-05 Oakley, Inc. Eyewear with chroma enhancement
US11474382B2 (en) 2010-04-15 2022-10-18 Oakley, Inc. Eyewear with chroma enhancement
US8770749B2 (en) 2010-04-15 2014-07-08 Oakley, Inc. Eyewear with chroma enhancement
US10345623B2 (en) 2010-04-15 2019-07-09 Oakley, Inc. Eyewear with chroma enhancement
US10401652B2 (en) 2010-04-15 2019-09-03 Oakley, Inc. Eyewear with chroma enhancement
US11397337B2 (en) 2010-04-15 2022-07-26 Oakley, Inc. Eyewear with chroma enhancement
US9134547B2 (en) 2011-10-20 2015-09-15 Oakley, Inc. Eyewear with chroma enhancement
US11579470B2 (en) 2012-05-10 2023-02-14 Oakley, Inc. Lens with anti-fog element
US11762221B2 (en) 2014-01-10 2023-09-19 Oakley, Inc. Eyewear with chroma enhancement
US9910297B1 (en) 2014-01-10 2018-03-06 Oakley, Inc. Eyewear with chroma enhancement
US11099408B2 (en) 2014-01-10 2021-08-24 Oakley, Inc. Eyewear with chroma enhancement
US9575335B1 (en) 2014-01-10 2017-02-21 Oakley, Inc. Eyewear with chroma enhancement for specific activities
US10871661B2 (en) 2014-05-23 2020-12-22 Oakley, Inc. Eyewear and lenses with multiple molded lens components
US10073282B2 (en) 2014-11-13 2018-09-11 Oakley, Inc. Eyewear with variable optical characteristics
US11048103B2 (en) 2014-11-13 2021-06-29 Oakley, Inc. Eyewear with variable optical characteristics
US12085788B2 (en) 2014-11-13 2024-09-10 Oakley, Inc. Eyewear with variable optical characteristics
US9905022B1 (en) 2015-01-16 2018-02-27 Oakley, Inc. Electronic display for demonstrating eyewear functionality
US12124116B2 (en) 2017-10-20 2024-10-22 Luxottica S.R.L. Eyewear with variable transmission lens
US11112622B2 (en) 2018-02-01 2021-09-07 Luxottica S.R.L. Eyewear and lenses with multiple molded lens components

Also Published As

Publication number Publication date
FR1561177A (en) 1969-03-28
BE707862A (en) 1968-04-16
DE1596775A1 (en) 1971-03-18
NL6716864A (en) 1968-06-13

Similar Documents

Publication Publication Date Title
US4376829A (en) Glass for use in monochromatic colored light emitting cathode ray tubes
GB1154500A (en) Spectral Filter
US4288250A (en) Glass filter for contrast enhancement in CRT displays
GB869453A (en) Glass composition
JPS5358491A (en) Fluorescent substance
US3382393A (en) Color television tube with faceplate panel of high transmittance in the red color
JPS52107770A (en) Color picture tube
GB1133760A (en) Improvements in or relating to glass
GB426797A (en) Improvements in and relating to fluorescent screens
GB445978A (en) Improvements in or relating to cathode ray tubes for television and like purposes
JPS5641669A (en) Fluorescent lamp
JPS56114273A (en) Fluorescent lamp
JPS5790851A (en) Cathode ray tube
JPS643946A (en) Cathode-ray tube device for green luminescence projection
ES369010A1 (en) Nio and coo containing glass for television display cathode-ray tubes
JPS57115749A (en) Color picture tube
JPS57126050A (en) Panel glass for color cathode-ray tube
KR910013418A (en) Colored cathode ray tube
JPS6340350B2 (en)
JPS57185656A (en) Standard-color cathode-ray tube
GB932187A (en) Improvements in and relating to colour television
KR880000449B1 (en) Glass composition
ES349927A1 (en) Europium activated lithium indium silicate
SU755762A1 (en) Glass
JPS57136743A (en) Color cathode-ray tube