JPH0485219U - - Google Patents
Info
- Publication number
- JPH0485219U JPH0485219U JP12679890U JP12679890U JPH0485219U JP H0485219 U JPH0485219 U JP H0485219U JP 12679890 U JP12679890 U JP 12679890U JP 12679890 U JP12679890 U JP 12679890U JP H0485219 U JPH0485219 U JP H0485219U
- Authority
- JP
- Japan
- Prior art keywords
- light
- guide plate
- light guide
- illumination device
- back side
- 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
Landscapes
- Details Of Measuring Devices (AREA)
Description
第１図は本考案の一実施例を示す導光板部分の
正面図、第２図は第１図の集光面部分の拡大断面
図、第３図は文字板の正面図、第４図は従来の計
器の照明装置の導光板部分の正面図、第５図は従
来の導光板部分の側面図である。
１……文字板、２……導光板、３，４……入光
面、６，８……傾斜反射面、９……湾曲反射面、
１０……反射用スリツト、１１……速度表示目盛
り、１６……集光面。
Fig. 1 is a front view of the light guide plate showing an embodiment of the present invention, Fig. 2 is an enlarged sectional view of the condensing surface of Fig. 1, Fig. 3 is a front view of the dial, and Fig. 4 is FIG. 5 is a front view of a light guide plate portion of a conventional instrument illumination device, and FIG. 5 is a side view of the conventional light guide plate portion. 1... Dial plate, 2... Light guide plate, 3, 4... Light entrance surface, 6, 8... Inclined reflective surface, 9... Curved reflective surface,
10... Reflection slit, 11... Speed display scale, 16... Light condensing surface.
Claims (1)
の裏面に透明な材料からなる導光板を配設し、こ
の導光板の裏面側に光源からの光を拡散して上記
文字板の表示目盛り部分に照射する入光面を形成
してなる計器の照明装置において、 上記導光板の上記入光面が形成されていない部
分に、上記導光板の内部に入光される光を上記表
示目盛り部分に集光させる集光面を形成したこと
を特徴とする計器の照明装置。[Scope of Claim for Utility Model Registration] A light guide plate made of a transparent material is provided on the back side of a dial on which a predetermined display scale is formed, and light from a light source is diffused onto the back side of this light guide plate. In the instrument illumination device, light enters the interior of the light guide plate into a portion of the light guide plate where the light incident surface is not formed. An illumination device for an instrument, characterized in that a light condensing surface is formed to condense light on the display scale portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12679890U JPH0485219U (en) | 1990-11-30 | 1990-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12679890U JPH0485219U (en) | 1990-11-30 | 1990-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0485219U true JPH0485219U (en) | 1992-07-24 |
Family
ID=31874336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12679890U Pending JPH0485219U (en) | 1990-11-30 | 1990-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0485219U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016061737A (en) * | 2014-09-19 | 2016-04-25 | カシオ計算機株式会社 | Ring illumination device and clock |
-
1990
- 1990-11-30 JP JP12679890U patent/JPH0485219U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016061737A (en) * | 2014-09-19 | 2016-04-25 | カシオ計算機株式会社 | Ring illumination device and clock |