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특허 상세정보

Neodymium glass for tungsten-halogen lamp envelopes and filters

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C03C-003/095    H01J-061/30   
미국특허분류(USC) 501/064; 501/066; 501/067; 501/070; 313/025; 313/636
출원번호 US-0594475 (2000-06-15)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Anca C. Gheorghiu
인용정보 피인용 횟수 : 18  인용 특허 : 18
초록

A glass for tungsten halogen lamp glass envelopes, glass filter lenses, and glass filters consisting essentially in terms of weight percent on the oxide basis, of about 50-62% SiO2, 10-17% Al2O3, 0-6% B2O3, 3.6-10% CaO, 0-7.5% MgO, 0.1-0.3% SrO, 2.4-18% BaO, 0-1% ZnO, 1-8% Nd2O3. The glass exhibits the following physical properties: strain point between about 665.degree. C. to about 750.degree. C., coefficient of thermal expansion to the set point of between about 49-59.times.10-7/.degree. C., liquidus temperature below 1320.degree. C., viscosity at liqu...

대표
청구항

1. Glass compositions suitable as an envelope for a tungsten halogen lamp, consisting essentially in terms of weight percent on the oxide basis, of about 50-62% SiO2, 10-17% Al2O3, 0-6% B2O3, 3.6-10% CaO, 0-7.5% MgO, 0.1-0.3% SrO, 2.4-18% BaO, 0-1% ZnO, 1-8% Nd2O3, and exhibiting a strain point between about 665.degree. C. to about 750.degree. C., a coefficient of thermal expansion from 25.degree. C. to the set point, 5.degree. C. above the glass strain point, between about 49-59.times.10-7/.degree. C., a liquidus temperature below about 1320.degree. C.,...

이 특허에 인용된 특허 (18)

  1. Kobayashi Hiroo (Kyoto JPX). Cathode ray tube for a light source. USP1984064454446.
  2. Karpen Daniel N. (3 Harbor Hill Dr. Huntington NY 11743). Color corrected motor vehicle headlight. USP1996085548491.
  3. Yamashita Toshiharu (Tokyo JPX). Contrast enhancement filter for color CRT display devices. USP1985064521524.
  4. Dumbaugh ; Jr. William H. (Painted Post NY). Envelopes for tungsten-halogen lamps. USP1983074394453.
  5. Dumbaugh ; Jr. William H. (Painted Post NY) Genisson Roger R. (Samoreau FR) Lestrat Michel R. (Avon FR). Glass envelope for tungsten-bromine lamp. USP1976083978362.
  6. Danielson Paul S. (Corning NY). Glass envelopes for tungsten-halogen lamps. USP1981114302250.
  7. Yamashita Toshiharu (Hachioji JPX). Glass filter for contrast enhancement in CRT displays. USP1981094288250.
  8. Naumann Karin,DEX ; Ott Franz,DEX ; Becker Otmar,DEX. Glass for lamb bulbs capable of withstanding high temperatures. USP2000056069100.
  9. Danielson Paul S. (Big Flats NY) Dumbaugh ; Jr. William H. (Painted Post NY) Hagy Henry E. (Painted Post NY). Glass for sealing to molybdenum metal. USP1981034255198.
  10. Elmer Thomas H. (Corning NY). Glass for tungsten-halogen lamps. USP1986084605632.
  11. Daiku Nobutaka (Otsu JPX). Glass for use in monochromatic colored light emitting cathode ray tubes. USP1983034376829.
  12. Marlor Richard C.. Lead and arsenic free borosilicate glass and lamp containing same. USP2000096118216.
  13. Marlor Richard C.. Lead and arsenic free borosilicate glass and lamp containing same. USP2001096284686.
  14. Dolan Robert B. ; Plumb John L. ; Wyner Elliot F.. Mercury and lead free high pressure sodium lamp. USP2001076268696.
  15. Danielson Paul S. (Corning NY). Molybdenum sealing glasses. USP1987094693987.
  16. Hirano Tomiyoshi (Yokohama JPX) Shinada Hidehiro (Yokohama JPX) Sawada Michiyuki (Yokosuka JPX). Reflective lamp. USP1982024315186.
  17. Hayden Yuiko (Duryea PA) Krashkevich David (Duryea PA). Strengthenable, high neodymium-containing glasses. USP1991125077240.
  18. Daiku Nobutaka (Otsu JPX). X-Ray absorbing glass for a color cathode ray tube having a controlled chromaticity value and a selective light absorpti. USP1983064390637.

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  18. Daniel Nathan Karpen. Neodymium oxide doped motor vehicle windshield and safety glazing material. USP2002096450652.