JPH0160303U - - Google Patents

Info

Publication number
JPH0160303U
JPH0160303U JP1987152808U JP15280887U JPH0160303U JP H0160303 U JPH0160303 U JP H0160303U JP 1987152808 U JP1987152808 U JP 1987152808U JP 15280887 U JP15280887 U JP 15280887U JP H0160303 U JPH0160303 U JP H0160303U
Authority
JP
Japan
Prior art keywords
light source
reflecting plate
light
lighting device
light absorbing
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.)
Granted
Application number
JP1987152808U
Other languages
Japanese (ja)
Other versions
JPH0530254Y2 (en
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 JP1987152808U priority Critical patent/JPH0530254Y2/ja
Priority to US07/216,429 priority patent/US5038259A/en
Priority to KR1019880008437A priority patent/KR970008278B1/en
Priority to DE3853024T priority patent/DE3853024T2/en
Priority to EP88110897A priority patent/EP0298492B1/en
Priority to CA000571588A priority patent/CA1333710C/en
Publication of JPH0160303U publication Critical patent/JPH0160303U/ja
Priority to US07/706,306 priority patent/US5144539A/en
Priority to US07/737,488 priority patent/US5101330A/en
Priority to US07/737,979 priority patent/US5105345A/en
Priority to US07/738,128 priority patent/US5101331A/en
Application granted granted Critical
Publication of JPH0530254Y2 publication Critical patent/JPH0530254Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

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

第１図は本考案の一実施例の断面図、第２図は
同実施例で用いる遮光模様並びに反射率の低い部
材を示した斜視図、第３図は同実施例の拡散板上
の輝度分布を示すグラフ、第４図は光吸収部材の
他のパターンを示す図、第５図は従来の照明装置
の断面図、第６図は従来の遮光模様を設けた螢光
管の斜視図、第７図は従来の遮光板の他の例を示
す平面図、第８図、第９図はいずれも従来の照明
装置の拡散板上での輝度分布を示すグラフである
。 １……反射板、２……螢光管、３……拡散板、
４，５……光吸収部材。 Fig. 1 is a cross-sectional view of an embodiment of the present invention, Fig. 2 is a perspective view showing a light-shielding pattern and members with low reflectance used in the embodiment, and Fig. 3 is the luminance on the diffuser plate of the embodiment. A graph showing the distribution, FIG. 4 is a diagram showing other patterns of light absorbing members, FIG. 5 is a cross-sectional view of a conventional lighting device, and FIG. 6 is a perspective view of a fluorescent tube provided with a conventional light-shielding pattern. FIG. 7 is a plan view showing another example of a conventional light shielding plate, and FIGS. 8 and 9 are graphs showing luminance distribution on a diffuser plate of a conventional lighting device. 1... Reflector plate, 2... Fluorescent tube, 3... Diffusion plate,
4, 5... Light absorption member.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 反射板の上部に直線状の光源を配置しこの直線
状の光源に対して反射板と反対側に拡散板を配置
した照明装置において、前記光源管上面と光源管
直下の前記反射板上に光量調整用の光吸収部材を
配設したもので、前記光吸収部材の少なくとも一
方を一定幅の帯状の光吸収並列パターンで形成し
たことを特徴とする照明装置。 In a lighting device in which a linear light source is arranged above a reflecting plate and a diffuser plate is arranged on the opposite side of the reflecting plate with respect to the linear light source, the amount of light is distributed on the upper surface of the light source tube and on the reflecting plate directly below the light source tube. 1. A lighting device comprising a light absorbing member for adjustment, wherein at least one of the light absorbing members is formed into a strip-shaped light absorbing parallel pattern with a constant width.
JP1987152808U 1987-07-09 1987-10-07 Expired - Lifetime JPH0530254Y2 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP1987152808U JPH0530254Y2 (en) 1987-10-07 1987-10-07
US07/216,429 US5038259A (en) 1987-07-09 1988-07-07 Illumination device
KR1019880008437A KR970008278B1 (en) 1987-07-09 1988-07-07 An illumination device
DE3853024T DE3853024T2 (en) 1987-07-09 1988-07-07 Lighting device.
EP88110897A EP0298492B1 (en) 1987-07-09 1988-07-07 An illumination device
CA000571588A CA1333710C (en) 1987-07-09 1988-07-08 Illuminated device
US07/706,306 US5144539A (en) 1987-07-09 1991-05-28 Illumination device
US07/737,488 US5101330A (en) 1987-07-09 1991-07-30 Illumination device
US07/737,979 US5105345A (en) 1987-07-09 1991-07-30 Illumination device
US07/738,128 US5101331A (en) 1987-07-09 1991-07-30 Illumination device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987152808U JPH0530254Y2 (en) 1987-10-07 1987-10-07

Publications (2)

Publication Number Publication Date
JPH0160303U true JPH0160303U (en) 1989-04-17
JPH0530254Y2 JPH0530254Y2 (en) 1993-08-03

Family

ID=31428071

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987152808U Expired - Lifetime JPH0530254Y2 (en) 1987-07-09 1987-10-07

Country Status (1)

Country Link
JP (1) JPH0530254Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0279206U (en) * 1988-11-30 1990-06-19

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6010208U (en) * 1983-06-30 1985-01-24 松下電工株式会社 Indicator light
JPS6190106U (en) * 1984-11-20 1986-06-12
JPS61133502A (en) * 1984-12-03 1986-06-20 三菱電機株式会社 Surface light source unit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4050266A (en) * 1975-11-21 1977-09-27 Lord Corporation Drive coupling

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6010208U (en) * 1983-06-30 1985-01-24 松下電工株式会社 Indicator light
JPS6190106U (en) * 1984-11-20 1986-06-12
JPS61133502A (en) * 1984-12-03 1986-06-20 三菱電機株式会社 Surface light source unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0279206U (en) * 1988-11-30 1990-06-19

Also Published As

Publication number Publication date
JPH0530254Y2 (en) 1993-08-03

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