JPS55133008A - Thin type shaukasten - Google Patents
Thin type shaukastenInfo
- 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
Links
- 238000009792 diffusion process Methods 0.000 abstract 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 abstract 1
- 230000004907 flux Effects 0.000 abstract 1
- 238000002834 transmittance Methods 0.000 abstract 1
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
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)
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 |
-
1979
- 1979-04-03 JP JP4017179A patent/JPS55133008A/en active Pending
Cited By (14)
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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