Contrast enhancement filter for color CRT display devices
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C03C-003/04
C03C-003/10
H01J-029/86
출원번호
US-0420664
(1982-09-21)
우선권정보
JP-0147797 (1981-09-21)
발명자
/ 주소
Yamashita Toshiharu (Tokyo JPX)
출원인 / 주소
Hoya Corporation (Tokyo JPX 03)
인용정보
피인용 횟수 :
52인용 특허 :
5
초록▼
A glass filter for contrast enhancement in a color CRT display devices comprises 100 parts by weight of a base glass comprising, in % by weight 3 to 70% SiO2, 0 to 40% B2O3, 0 to 23% Al2O3, 0 to 23% R2O (R2O being at least one selected from the group consisting of Li2O, Na2O and K2O), 2 to 35% RO (R
A glass filter for contrast enhancement in a color CRT display devices comprises 100 parts by weight of a base glass comprising, in % by weight 3 to 70% SiO2, 0 to 40% B2O3, 0 to 23% Al2O3, 0 to 23% R2O (R2O being at least one selected from the group consisting of Li2O, Na2O and K2O), 2 to 35% RO (RO being at least one selected from the group consisting of MgO, CaO, SrO, BaO, ZnO and PbO), 0 to 10% TiO2, 0 to 10% ZrO2, 0 to 35% La2O3 and 5 to 40% Nd2O3, at least two coloring components selected form the group consisting of 6 parts by weight or less CeO2, 1.0 parts by weight or less CuO, 3.5 parts by weight or less MnO2, 0.15 parts by weight or less CoO, 3.0 parts by weight or less Fe2O3, 1.5 parts by weight or less NiO and 5.0 parts by weight or less Pr6O11, and at least one coloring component selected form the group consisting of CeO, CuO, MnO2 and CoO.
대표청구항▼
A glass filter for contrast enhancement in color CRT display devices consisting essentially of 100 parts by weight of a base glass consisting essentially of, in % by weight 3 to 70% SiO2, 0 to 40% B2O3, 0 to 23% Al2O3 0 to 23% R2O (R2O being at least one component selected from the group consisting
A glass filter for contrast enhancement in color CRT display devices consisting essentially of 100 parts by weight of a base glass consisting essentially of, in % by weight 3 to 70% SiO2, 0 to 40% B2O3, 0 to 23% Al2O3 0 to 23% R2O (R2O being at least one component selected from the group consisting of Li2O, Na2O and K2O), 2 to 35% RO (RO being at least one component selected from the group consisting of MgO, CaO, SrO, BaO, ZnO and PbO), 0 to 10% TiO2, 0 to 10% ZrO2, 0 to 35% La2O3 and 5 to 40% Nd2O3, 0.01 to 1.0 parts by weight of CuO, and at least one coloring component selected from the group consisting of 6 parts by weight or less CeO2, 3.5 parts by weight or less MnO2, 0.15 parts by weight or less CoO, 3.0 parts by weight or less Fe2O3, 1.5 parts by weight or less NiO and 5.0 parts by weight or less Pr6O11.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (5)
Kobayashi Hiroo (Kyoto JPX), Cathode ray tube for a light source.
Kunert,Christian; Naumann,Karin; Ott,Franz; Becker,Ottmar, Alkaline-earth aluminosilicate glass, containing CA and BA, suitable for use in lamp bulbs, and a lamp bulb containing same.
Parsapour, Farzad; Gunturi, Bhanumurthy Venkatrama Subrahmanya; Colbert, Steven Anthony; Collins, Brian Thomas, Cathode ray tube having an internal neutral density filter.
Namiki, Fumihiro; Irie, Katsuya, Gas-discharge display apparatus having optical filter selectively absorbing light of a wavelength equal to that of the light emission of the discharge gas.
Kurachi Junji,JPX ; Koyama Akihiro,JPX ; Kishimoto Shoichi,JPX ; Yamamoto Nobuyuki,JPX, Glass composition and substrate for information recording media comprising the same.
Filmer Bartholomeus,NLX ; Van Der Steen Gerardus H.A.M.,NLX, Glass composition suitable for use in a fluorescent lamp, lamp envelope manufactured from said glass composition and flu.
Horiuchi Tetsuro (Gardena CA) Goldman Arnold E. (Canoga Park CA) Raghavan Durai N. (Plano TX), Lathanide series oxide modified alkaline-resistant glass.
Hirota Shin-Ichiro,JPX ; Oogami Yu,JPX ; Hashimoto Kazuaki,JPX, Method of producing a glass optical element capable of suppressing occurrence of a damage of a mold and improving a quality of the glass optical element.
Donofrio Robert L. ; van der Voort Andre A.,NLX, Monochrome CRT having curved display window with reduced transmission and projection color TV incorporating same.
Ross Ludwig (Klein-Winternheim DEX) Geiler Volkmar (Mainz-Finthen DEX), Optical glass with refractive index 1.60, an abbe number 58, with high chemical stability and resistance to phase separa.
Hildenbrand, Volker Dirk; Glaeser, Harald; Ronda, Cornelis Reinder; Mutter, Claudia, UV-reflecting layer, lamp with such a layer, and method of providing such a layer on a lamp glass.
Crane Richard H. ; De Angelis Laura O. ; Haynes William L. ; Stewart Ronald L., Ultraviolet absorbing and yellow light filtering glasses for lamp envelopes.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.