JPH0451708U - - Google Patents

Info

Publication number
JPH0451708U
JPH0451708U JP9324190U JP9324190U JPH0451708U JP H0451708 U JPH0451708 U JP H0451708U JP 9324190 U JP9324190 U JP 9324190U JP 9324190 U JP9324190 U JP 9324190U JP H0451708 U JPH0451708 U JP H0451708U
Authority
JP
Japan
Prior art keywords
light guide
guide panel
light
lighting device
lamp
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
JP9324190U
Other languages
Japanese (ja)
Other versions
JP2570558Y2 (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 JP1990093241U priority Critical patent/JP2570558Y2/en
Publication of JPH0451708U publication Critical patent/JPH0451708U/ja
Application granted granted Critical
Publication of JP2570558Y2 publication Critical patent/JP2570558Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Tables And Desks Characterized By Structural Shape (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Description

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

第１図はこの考案の一実施例による机上照明装
置の灯具の構成を示す断面図、第２図はその机上
照明装置の斜視図、第３図は灯具の取付高さを変
化させたときの光源直下中心線上位置と照度との
関係を示す照度特性図、第４図は導光パネルの最
長奥行き寸法を変化させたときの光源直下中心線
上位置と照度との関係を示す照度特性図、第５図
ａは机上面の照度測定点を示す説明図、第５図ｂ
はその測定例を示す照度分布図、第６図、第７図
はこの考案の他の実施例を示す斜視図、第８図は
従来の机上照明装置の構成を示す断面図、第９図
は従来の机上照明装置の斜視図、第１０図は従来
の机上照明装置の使用例を示す説明図、第１１図
は従来の机上照明装置による照度分布図である。 図において、１は灯具、２はランプ、３は反射
板、７は導光板、８は導光パネル、１０は端面で
ある。なお、各図中同一符号は同一または相当部
分を示す。 Fig. 1 is a sectional view showing the configuration of a lamp of a desk lighting device according to an embodiment of the invention, Fig. 2 is a perspective view of the desk lighting device, and Fig. 3 shows the structure of the lamp when the mounting height of the lamp is changed. Figure 4 is an illuminance characteristic diagram showing the relationship between the position on the center line directly below the light source and illuminance. Figure 5a is an explanatory diagram showing illuminance measurement points on the desk surface, Figure 5b
6 and 7 are perspective views showing other embodiments of this invention, FIG. 8 is a sectional view showing the configuration of a conventional desk lighting device, and FIG. 9 is an illuminance distribution diagram showing a measurement example. FIG. 10 is a perspective view of a conventional desk lighting device, FIG. 10 is an explanatory diagram showing an example of use of the conventional desk lighting device, and FIG. 11 is an illuminance distribution diagram by the conventional desk lighting device. In the figure, 1 is a lamp, 2 is a lamp, 3 is a reflector, 7 is a light guide plate, 8 is a light guide panel, and 10 is an end face. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 奥行寸法の異なる複数の導光板を積層させて成
る導光パネルと、この導光パネルに入射する光を
発するランプと、上記導光パネルに導光された光
を反射させる反射板とから構成された灯具を備え
、上記導光パネルの最長奥行き寸法を１００mm以
上とし、かつ机上面から上記灯具までの高さを２
５０mm以上４００mm以下としたことを特徴とする
机上照明装置。 It is composed of a light guide panel made by laminating a plurality of light guide plates with different depth dimensions, a lamp that emits light incident on the light guide panel, and a reflector that reflects the light guided by the light guide panel. The light guide panel shall have a maximum depth of 100 mm or more, and the height from the desk surface to the light shall be 2.
A desk lighting device characterized by having a length of 50 mm or more and 400 mm or less.
JP1990093241U 1990-09-05 1990-09-05 Desk lighting equipment Expired - Fee Related JP2570558Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990093241U JP2570558Y2 (en) 1990-09-05 1990-09-05 Desk lighting equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990093241U JP2570558Y2 (en) 1990-09-05 1990-09-05 Desk lighting equipment

Publications (2)

Publication Number Publication Date
JPH0451708U true JPH0451708U (en) 1992-04-30
JP2570558Y2 JP2570558Y2 (en) 1998-05-06

Family

ID=31830290

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990093241U Expired - Fee Related JP2570558Y2 (en) 1990-09-05 1990-09-05 Desk lighting equipment

Country Status (1)

Country Link
JP (1) JP2570558Y2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010125927A1 (en) * 2009-04-30 2010-11-04 興和株式会社 Led illumination device
JP2011233308A (en) * 2010-04-26 2011-11-17 Twinbird Corp Lighting system
JP2013218946A (en) * 2012-04-11 2013-10-24 Kowa Co Lighting device
WO2014132894A1 (en) * 2013-03-01 2014-09-04 シャープ株式会社 Lighting apparatus
EP2573455A3 (en) * 2011-09-22 2014-12-31 Flos S.P.A. Lamp with asymmetric luminous intensity

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6326804U (en) * 1986-08-01 1988-02-22
JPS6359654U (en) * 1986-10-03 1988-04-20
JPS6422172U (en) * 1987-07-27 1989-02-03

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6326804U (en) * 1986-08-01 1988-02-22
JPS6359654U (en) * 1986-10-03 1988-04-20
JPS6422172U (en) * 1987-07-27 1989-02-03

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010125927A1 (en) * 2009-04-30 2010-11-04 興和株式会社 Led illumination device
JP2010262742A (en) * 2009-04-30 2010-11-18 Kowa Co Led illumination device
JP2011233308A (en) * 2010-04-26 2011-11-17 Twinbird Corp Lighting system
EP2573455A3 (en) * 2011-09-22 2014-12-31 Flos S.P.A. Lamp with asymmetric luminous intensity
JP2013218946A (en) * 2012-04-11 2013-10-24 Kowa Co Lighting device
WO2014132894A1 (en) * 2013-03-01 2014-09-04 シャープ株式会社 Lighting apparatus

Also Published As

Publication number Publication date
JP2570558Y2 (en) 1998-05-06

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees