JPS64207U - - Google Patents

Info

Publication number
JPS64207U
JPS64207U JP9465987U JP9465987U JPS64207U JP S64207 U JPS64207 U JP S64207U JP 9465987 U JP9465987 U JP 9465987U JP 9465987 U JP9465987 U JP 9465987U JP S64207 U JPS64207 U JP S64207U
Authority
JP
Japan
Prior art keywords
discharge lamp
opening
light
diffusing plate
light diffusing
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
JP9465987U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP9465987U priority Critical patent/JPS64207U/ja
Publication of JPS64207U publication Critical patent/JPS64207U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の第１の実施例を示す管軸方向
と直交する方向の断面図、第２図は本考案の第２
の実施例を示す管軸方向と直交する方向の断面図
および特性図、第３図および第４図は従来の構造
を示すもので、第３図は全体の斜視図、第４図は
第３図中―線に沿つて照度分布特性とともに
示す断面図である。 １……ケーシング、２……冷陰極けい光ランプ
（管形放電灯）、３……ソケツト、４……電極、
１０……光拡散板、１１……外面、１２……最大
厚肉部。 FIG. 1 is a cross-sectional view in a direction perpendicular to the tube axis direction showing the first embodiment of the present invention, and FIG. 2 is a cross-sectional view of the second embodiment of the present invention.
3 and 4 show the conventional structure, where FIG. 3 is a perspective view of the entire structure, and FIG. FIG. 3 is a cross-sectional view taken along the line in the figure along with illuminance distribution characteristics. 1... Casing, 2... Cold cathode fluorescent lamp (tubular discharge lamp), 3... Socket, 4... Electrode,
10...Light diffusing plate, 11...Outer surface, 12...Maximum thick part.

Claims (1)

【実用新案登録請求の範囲】 一側が開口したケーシング内にこの開口部に対
して略平行に管形放電灯を収容し、この放電灯か
ら放射された光を上記開口部に設けた光拡散板を
透過させて光拡散板の前方を照射する照明装置に
おいて、 上記光拡散板はその外面側の肉厚を放電灯に近
い箇所を厚肉に形成するとともに、上記放電灯の
管軸方向と直交する方向に沿つて放電灯から遠ざ
かるに応じて肉厚を漸次薄くしたことを特徴とす
る照明装置。[Claims for Utility Model Registration] A light diffusion plate is provided in which a tube-shaped discharge lamp is housed in a casing with an opening on one side, approximately parallel to the opening, and the light emitted from the discharge lamp is provided in the opening. In an illumination device that illuminates the front of a light diffusing plate by transmitting light, the light diffusing plate has a thicker wall near the discharge lamp on its outer surface side, and is perpendicular to the tube axis direction of the discharge lamp. A lighting device characterized in that the wall thickness is gradually thinned as the distance from the discharge lamp increases in the direction of the discharge lamp.
JP9465987U 1987-06-22 1987-06-22 Pending JPS64207U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9465987U JPS64207U (en) 1987-06-22 1987-06-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9465987U JPS64207U (en) 1987-06-22 1987-06-22

Publications (1)

Publication Number Publication Date
JPS64207U true JPS64207U (en) 1989-01-05

Family

ID=30958339

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9465987U Pending JPS64207U (en) 1987-06-22 1987-06-22

Country Status (1)

Country Link
JP (1) JPS64207U (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4216581Y1 (en) * 1965-12-07 1967-09-25
JPS4831987B1 (en) * 1969-03-01 1973-10-03
JPS5713478A (en) * 1980-06-26 1982-01-23 Epson Corp Back light structure for display unit
JPS6026711B2 (en) * 1976-04-26 1985-06-25 ミドランド・ロス コ−ポレイシヨン belt type printing machine
JPS60236401A (en) * 1984-05-09 1985-11-25 クロイ電機株式会社 Panel type lighting apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4216581Y1 (en) * 1965-12-07 1967-09-25
JPS4831987B1 (en) * 1969-03-01 1973-10-03
JPS6026711B2 (en) * 1976-04-26 1985-06-25 ミドランド・ロス コ−ポレイシヨン belt type printing machine
JPS5713478A (en) * 1980-06-26 1982-01-23 Epson Corp Back light structure for display unit
JPS60236401A (en) * 1984-05-09 1985-11-25 クロイ電機株式会社 Panel type lighting apparatus

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