JPS55133008A - Thin type shaukasten - Google Patents

Thin type shaukasten

Info

Publication number
JPS55133008A
JPS55133008A JP4017179A JP4017179A JPS55133008A JP S55133008 A JPS55133008 A JP S55133008A JP 4017179 A JP4017179 A JP 4017179A JP 4017179 A JP4017179 A JP 4017179A JP S55133008 A JPS55133008 A JP S55133008A
Authority
JP
Japan
Prior art keywords
tubes
shaukasten
distances
reflecting plate
angle
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
JP4017179A
Other languages
Japanese (ja)
Inventor
Hisao Morohashi
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.)
ONO GIJUTSU KENKYUSHO KK
Original Assignee
ONO GIJUTSU KENKYUSHO KK
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 ONO GIJUTSU KENKYUSHO KK filed Critical ONO GIJUTSU KENKYUSHO KK
Priority to JP4017179A priority Critical patent/JPS55133008A/en
Priority to US06/095,303 priority patent/US4267489A/en
Publication of JPS55133008A publication Critical patent/JPS55133008A/en
Pending legal-status Critical Current

Links

Landscapes

  • Apparatus For Radiation Diagnosis (AREA)

Abstract

PURPOSE: To obtain the Shaukasten free from any flicker on the read surface with the simple constitution by combining the specular reflecting plate of the specific angle, an uneven removing member for reflection patterns, a diffusion member, etc.
CONSTITUTION: A specular reflecting plate 5 of Al material or the like is bent from the portions opposing to general-purpose fluorescent tubes 4... for and the angles θ, θ' thereof are selected at 21°, γ, γ' at 18°, etc. and the angle assuming the direction at a right angle to the axis of the tubes 4° at 120W180°. Further an unevenness removing member 3 and diffusion plate 2 of acrylic material are provided at the distances L1, L2 satisfying distances 2L1≥L2 from the tubes 4.... The angular dots of white-color ink of which the minimum light transmittance by reflection patterns becomes 40% or more and opening rate a2/b2 is 50W100% are coated to such a distribution at which the opening rates becomes opposite according to the large and small of the luminous fluxes of the tubes 4.
COPYRIGHT: (C)1980,JPO&Japio
JP4017179A 1978-12-01 1979-04-03 Thin type shaukasten Pending JPS55133008A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP4017179A JPS55133008A (en) 1979-04-03 1979-04-03 Thin type shaukasten
US06/095,303 US4267489A (en) 1978-12-01 1979-11-19 Thin schaukasten

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4017179A JPS55133008A (en) 1979-04-03 1979-04-03 Thin type shaukasten

Publications (1)

Publication Number Publication Date
JPS55133008A true JPS55133008A (en) 1980-10-16

Family

ID=12573311

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4017179A Pending JPS55133008A (en) 1978-12-01 1979-04-03 Thin type shaukasten

Country Status (1)

Country Link
JP (1) JPS55133008A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6044076U (en) * 1983-08-31 1985-03-28 シャープ株式会社 Light box for display device
JPS60220310A (en) * 1984-04-16 1985-11-05 Orion Denki Shokai:Kk Observing device of radiographic film
JPS61133502A (en) * 1984-12-03 1986-06-20 三菱電機株式会社 Surface light source unit
JPS6255807U (en) * 1985-09-27 1987-04-07
US4803399A (en) * 1985-08-14 1989-02-07 Hitachi, Ltd. Fluorescent lamp arrangement for uniformly illuminating a display panel
JPS6455508U (en) * 1987-09-29 1989-04-06
JPH01103110U (en) * 1987-12-28 1989-07-12
JPH0237604A (en) * 1988-07-26 1990-02-07 Ono Gijutsu Kenkyusho:Kk Thin type light box
JPH0311201U (en) * 1989-06-16 1991-02-04
US5038259A (en) * 1987-07-09 1991-08-06 Dai-Ichi Seiko Co., Ltd. Illumination device

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6044076U (en) * 1983-08-31 1985-03-28 シャープ株式会社 Light box for display device
JPH0125965Y2 (en) * 1983-08-31 1989-08-03
JPS60220310A (en) * 1984-04-16 1985-11-05 Orion Denki Shokai:Kk Observing device of radiographic film
JPS61133502A (en) * 1984-12-03 1986-06-20 三菱電機株式会社 Surface light source unit
US4803399A (en) * 1985-08-14 1989-02-07 Hitachi, Ltd. Fluorescent lamp arrangement for uniformly illuminating a display panel
JPS6255807U (en) * 1985-09-27 1987-04-07
US5038259A (en) * 1987-07-09 1991-08-06 Dai-Ichi Seiko Co., Ltd. Illumination device
US5105345A (en) * 1987-07-09 1992-04-14 Dai-Ichi Seiko Co., Ltd. Illumination device
US5101331A (en) * 1987-07-09 1992-03-31 Dai-Ichi Seiko Co., Ltd. Illumination device
JPS6455508U (en) * 1987-09-29 1989-04-06
JPH01103110U (en) * 1987-12-28 1989-07-12
JPH054163Y2 (en) * 1987-12-28 1993-02-02
JPH0237604A (en) * 1988-07-26 1990-02-07 Ono Gijutsu Kenkyusho:Kk Thin type light box
JPH0311201U (en) * 1989-06-16 1991-02-04

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