JPH01155219U - - Google Patents
Info
- Publication number
- JPH01155219U JPH01155219U JP5030688U JP5030688U JPH01155219U JP H01155219 U JPH01155219 U JP H01155219U JP 5030688 U JP5030688 U JP 5030688U JP 5030688 U JP5030688 U JP 5030688U JP H01155219 U JPH01155219 U JP H01155219U
- Authority
- JP
- Japan
- Prior art keywords
- keyboard
- illumination
- switch
- light
- 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.)
- Pending
Links
- 238000005286 illumination Methods 0.000 claims description 14
- 238000010586 diagram Methods 0.000 description 5
- 239000013256 coordination polymer Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Switch Cases, Indication, And Locking (AREA)
Description
第１図はキーボードの基本的な構造図である。
第２図は本考案の一実施例を示す透過照明方式の
キーボードの照明光量制御回路図、第３図は本考
案の他の実施例を示す透過照明方式のキーボード
の照明光量制御回路図、第４図は本考案の他の実
施例を示す透過照明方式のキーボードの照明光量
制御回路図、第５図は本考案の他の実施例を示す
透過方式のキーボードの照明光量制限回路図であ
る。
１…キーボード、２…照明用ランプ、３…ＣＰ
Ｕ、４，５，７，８…抵抗、６…スイツチ、１１
ａ，１１ｂ，１１ｃ…キーボードスイツチ部、１
２…透過形キーボード台部、１３…透過形キーボ
ード押下部。
FIG. 1 is a basic structural diagram of a keyboard.
FIG. 2 is a circuit diagram for controlling the amount of illumination light for a keyboard using transmitted illumination, showing an embodiment of the present invention; FIG. 3 is a circuit diagram for controlling the amount of illumination light for a keyboard using transmitted illumination, showing another embodiment of the present invention; FIG. 4 is a circuit diagram for controlling the amount of illumination light for a transmissive keyboard according to another embodiment of the present invention, and FIG. 5 is a circuit diagram for limiting the amount of illumination light for a keyboard according to the transmissive method according to another embodiment of the present invention. 1... Keyboard, 2... Lighting lamp, 3... CP
U, 4, 5, 7, 8...Resistance, 6...Switch, 11
a, 11b, 11c...Keyboard switch section, 1
2... Transparent keyboard base part, 13... Transparent keyboard pressing part.
Claims (1)
過照明方式のキーボードを配設した電子機器にお
いて、前記キーボードの光量を変化させる制御手
段がＣＰＵ制御であり、前記照明用ランプの接地
抵抗と、前記キーボードの押下時は前記照明用ラ
ンプの接地側からＣＰＵのスイツチ機能をＯＮし
て接地し、前記接地抵抗と並列接続にして電流を
増加させ、前記照明用ランプの光量を上げること
を特徴とするキーボード照明装置。 ２ 前記照明用ランプの光量変化させる手段が、
前記照明用ランプに直列した抵抗と並列に、前記
キーボードのスイツチと連動するスイツチを配設
して、前記キーボードを押下時に前記直列抵抗を
短絡して前記照明用ランプの光量を上げることを
特徴とする第１項のキーボード照明装置。[Claims for Utility Model Registration] 1. In an electronic device provided with a transmissive illumination type keyboard incorporating an illumination lamp inside a switch, the control means for changing the amount of light of the keyboard is CPU control, and the illumination lamp When the keyboard is pressed, the switch function of the CPU is turned on and grounded from the ground side of the lighting lamp, and the current is increased by connecting it in parallel with the grounding resistance, and the amount of light from the lighting lamp is increased. A keyboard illumination device that is characterized by being raised. 2. The means for changing the light amount of the illumination lamp,
A switch interlocked with a switch on the keyboard is disposed in parallel with the resistor connected in series with the illumination lamp, and when the keyboard is pressed, the series resistor is short-circuited to increase the light intensity of the illumination lamp. The keyboard illumination device of item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5030688U JPH01155219U (en) | 1988-04-14 | 1988-04-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5030688U JPH01155219U (en) | 1988-04-14 | 1988-04-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01155219U true JPH01155219U (en) | 1989-10-25 |
Family
ID=31276361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5030688U Pending JPH01155219U (en) | 1988-04-14 | 1988-04-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01155219U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6037126B2 (en) * | 1975-07-11 | 1985-08-24 | エヤー プロダクツ アンド ケミカルズ インコーポレイテツド | Solvent purification and solvent recovery method for polymerization reaction equipment |
-
1988
- 1988-04-14 JP JP5030688U patent/JPH01155219U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6037126B2 (en) * | 1975-07-11 | 1985-08-24 | エヤー プロダクツ アンド ケミカルズ インコーポレイテツド | Solvent purification and solvent recovery method for polymerization reaction equipment |
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