JPS54111278A - Forming method for fluorescent face of color picture tube - Google Patents

Forming method for fluorescent face of color picture tube

Info

Publication number
JPS54111278A
JPS54111278A JP1896778A JP1896778A JPS54111278A JP S54111278 A JPS54111278 A JP S54111278A JP 1896778 A JP1896778 A JP 1896778A JP 1896778 A JP1896778 A JP 1896778A JP S54111278 A JPS54111278 A JP S54111278A
Authority
JP
Japan
Prior art keywords
axis
light
shielding plate
color
light shielding
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.)
Pending
Application number
JP1896778A
Other languages
Japanese (ja)
Inventor
Kazuaki Hirabayashi
Atsushi Kihara
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electronics Corp
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 Matsushita Electronics Corp filed Critical Matsushita Electronics Corp
Priority to JP1896778A priority Critical patent/JPS54111278A/en
Publication of JPS54111278A publication Critical patent/JPS54111278A/en
Pending legal-status Critical Current

Links

Landscapes

  • Microscoopes, Condenser (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)

Abstract

PURPOSE: To improve the quality of a white color and make a service life long by using a light shielding plate in the fluorescent face of a color picture tube to perform the light exposure of pseudo-dots of a photo-sensitive resin film in all the surface with a uniform illumination intensity.
CONSTITUTION: Light shielding plate 8 is a metallic plate body where the edge shape has the curvature of curve C corresponding to approximately middle of the transmissivity curve of correcting filter 5, and is arranged between light source 1 and correcting lens 7 after all the surface of photosensitive resin film 6 is light- exposed until 92% of the maximum light exposure time. Then, symmetrical axis n of light shielding plate 8 is made agree with the light source G axis for violet color and is moved gradually from the g side of the G axis to the direction of the g' side in a prescribed time. After the light exposure of a green color, the light exposure of red and blue colors is performed similarly by making symmetrical axis n of light shielding plate 8 agree with the R axis and the B axis respectively. As a result, uniform pseudo-dots can be obtained to improve the quality of a white color, and make a service life long without oxidizing correcting filter 5 to change transmissivity.
COPYRIGHT: (C)1979,JPO&Japio
JP1896778A 1978-02-20 1978-02-20 Forming method for fluorescent face of color picture tube Pending JPS54111278A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1896778A JPS54111278A (en) 1978-02-20 1978-02-20 Forming method for fluorescent face of color picture tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1896778A JPS54111278A (en) 1978-02-20 1978-02-20 Forming method for fluorescent face of color picture tube

Publications (1)

Publication Number Publication Date
JPS54111278A true JPS54111278A (en) 1979-08-31

Family

ID=11986417

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1896778A Pending JPS54111278A (en) 1978-02-20 1978-02-20 Forming method for fluorescent face of color picture tube

Country Status (1)

Country Link
JP (1) JPS54111278A (en)

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