KR960039096A - Projection Cathode Ray Tube - Google Patents

Projection Cathode Ray Tube Download PDF

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Publication number
KR960039096A
KR960039096A KR1019950008971A KR19950008971A KR960039096A KR 960039096 A KR960039096 A KR 960039096A KR 1019950008971 A KR1019950008971 A KR 1019950008971A KR 19950008971 A KR19950008971 A KR 19950008971A KR 960039096 A KR960039096 A KR 960039096A
Authority
KR
South Korea
Prior art keywords
center
fluorescent film
ray tube
cathode ray
projection
Prior art date
Application number
KR1019950008971A
Other languages
Korean (ko)
Other versions
KR0142700B1 (en
Inventor
배효대
Original Assignee
구자홍
엘지전자 주식회사
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 구자홍, 엘지전자 주식회사 filed Critical 구자홍
Priority to KR1019950008971A priority Critical patent/KR0142700B1/en
Publication of KR960039096A publication Critical patent/KR960039096A/en
Application granted granted Critical
Publication of KR0142700B1 publication Critical patent/KR0142700B1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
    • H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen

Landscapes

  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)
  • Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)

Abstract

본 발명은 판넬의 내부면에 투사광의 발생 위치별로 곡률이 다른 복수개의 단이진동심원 모양의 불연속면이 형성되므로써, 투사광의 집광에 의한 주변부의 휘도를 증대시킬 수 있고, 전자빔의 편향 중심에서 형광막까지의 도달거리가 센터부와 엣지부가 거의 동일하여 주변부 포커스 특성을 향상시킬 수 있으며, 주변부 포커스 특성을 향상시키기 위한 수단인 포커스 마그네트나 다이나믹 포커스 방식을 사용하지 않아도 되므로 인해 제품의 제작단가를 절감시킬 수 있는 것이다.According to the present invention, since a plurality of end concentric circular discontinuous surfaces having different curvatures are formed on the inner surface of the panel for each position where projection light is generated, the luminance of the peripheral portion due to condensing of the projection light can be increased, and the deflection center of the electron beam to the fluorescent film can be increased. Since the reach of the center is almost the same as the center part and the edge part, it is possible to improve the peripheral focus characteristic, and it is possible to reduce the manufacturing cost of the product because it is not necessary to use the focus magnet or the dynamic focus method, which is a means for improving the peripheral focus characteristic. It is.

이를 위해, 본 발명은 판넬(1)에 전자빔의 편향중심에서 형광막(2)까지의 도달거리가 형광막(2)의 센터와 엣지부분이 동일하도록 하기 위해 투사광의 발생위치별로 곡률이 다른 복수개의 단이진 동심원 모양의 불연속면(3)이 형성된 투사형 음극선관이다.To this end, the present invention provides a plurality of different curvatures of the projection light beams so that the distance from the deflection center of the electron beam to the fluorescent film 2 in the panel 1 is equal to the center and the edge of the fluorescent film 2. Projection-type cathode ray tube formed with two end concentric discontinuous surfaces 3.

Description

투사형 음극선관Projection Cathode Ray Tube

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명을 나타낸 종단면도, 제3도는 본 발명의 판넬내부면을 나타낸 정면도, 제4도는 (가) 및 (나)는 본 발명에 따른 판넬의 다른 실시예를 나타낸 종단면도.Figure 2 is a longitudinal cross-sectional view showing the present invention, Figure 3 is a front view showing the inner surface of the panel of the present invention, Figure 4 (a) and (b) is a longitudinal cross-sectional view showing another embodiment of the panel according to the present invention.

Claims (2)

판넬의 전자빔의 편향중심에서 형광막까지의 도달거리가 형광막의 센터와 엣지부분이 동일하도록 하기 우해 투사광의 발생위치로 곡률이 다른 복수개의 단이진동심원 모양의 불연속면이 형성된 것을 특징으로 하는 투사형 음극선관.Projection type cathode ray tube characterized in that a plurality of single-sided concentric circular discontinuities with different curvatures are formed at the position where projection light is generated so that the distance from the deflection center of the electron beam of the panel to the fluorescent film is equal to the center of the fluorescent film. . 제1항에 있어서, 상기 판넬의 내부면 또는 외부면에 곡률이 다른 복수개의 단이진동심원 모양의 불연속렌즈가 부착된 투사형 음극선관.The projection cathode ray tube according to claim 1, wherein a plurality of end concentric circular discontinuous lenses having different curvatures are attached to an inner surface or an outer surface of the panel. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950008971A 1995-04-17 1995-04-17 Projection-type cathode ray tube KR0142700B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019950008971A KR0142700B1 (en) 1995-04-17 1995-04-17 Projection-type cathode ray tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019950008971A KR0142700B1 (en) 1995-04-17 1995-04-17 Projection-type cathode ray tube

Publications (2)

Publication Number Publication Date
KR960039096A true KR960039096A (en) 1996-11-21
KR0142700B1 KR0142700B1 (en) 1998-07-15

Family

ID=19412316

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019950008971A KR0142700B1 (en) 1995-04-17 1995-04-17 Projection-type cathode ray tube

Country Status (1)

Country Link
KR (1) KR0142700B1 (en)

Also Published As

Publication number Publication date
KR0142700B1 (en) 1998-07-15

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