JPS5850569U - Electric shock prevention device - Google Patents
Electric shock prevention deviceInfo
- Publication number
- JPS5850569U JPS5850569U JP14561681U JP14561681U JPS5850569U JP S5850569 U JPS5850569 U JP S5850569U JP 14561681 U JP14561681 U JP 14561681U JP 14561681 U JP14561681 U JP 14561681U JP S5850569 U JPS5850569 U JP S5850569U
- Authority
- JP
- Japan
- Prior art keywords
- optically coupled
- opening
- screen
- electric shock
- shock prevention
- 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
Links
Landscapes
- Transforming Electric Information Into Light Information (AREA)
- Protection Of Static Devices (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は透過型スクリーンを有する透猿型テレビジョン
受像機の斜視図、第２図は第１図に示す装置の断面図、
第３図は第１図に示す装置の分解斜視図、第４図は本！
案の１実嵐例を示す回路図である。 ′
１・・・キャビネット、２・・・投射装置、５・・・透
過スクリーン、７・・・発光体、８・・・受光体、ＲＬ
、 Ｑｌ・・・制御装置。Fig. 1 is a perspective view of a transparent television receiver having a transmissive screen, Fig. 2 is a sectional view of the device shown in Fig. 1;
Figure 3 is an exploded perspective view of the device shown in Figure 1, and Figure 4 is a book!
FIG. 2 is a circuit diagram showing an example of the first example. ' 1... Cabinet, 2... Projection device, 5... Transmissive screen, 7... Light emitter, 8... Light receiver, RL
, Ql...control device.
Claims (1)
ーンを設は該透過スクリーンに投射映像与える投射装置
を内蔵した透射型テレビジョン受像機において、 前記開口部に前記透過スクリーンを取付けたときには光
結合せずまた前記開口部から前記透過スクリーンを取外
したときには光結合するように前記開口部を形成するキ
ャビネットの内壁に設けられた一対の発光体及び受光体
と、 前記発光体と受光体が光結合しないときには前記投射装
置に電源供給を行い、前記発光体と受光体が光結合した
ときには前記投射装置への電源供給を停止する制御装−
とを備えたことを特徴とする感電防止装置。[Claims for Utility Model Registration] A transmissive television receiver having a removable transmissive screen in a predetermined opening of a cabinet and a built-in projection device for projecting an image onto the transmissive screen, wherein the transmissive screen is provided in the opening. a pair of light emitters and a light receiver provided on an inner wall of the cabinet forming the opening so that they are not optically coupled when the transmitting screen is attached and are optically coupled when the transmitting screen is removed from the opening; a control device that supplies power to the projection device when the light emitter and the photoreceptor are not optically coupled, and stops power supply to the projection device when the light emitter and the photoreceptor are optically coupled;
An electric shock prevention device characterized by comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14561681U JPS5850569U (en) | 1981-09-30 | 1981-09-30 | Electric shock prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14561681U JPS5850569U (en) | 1981-09-30 | 1981-09-30 | Electric shock prevention device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5850569U true JPS5850569U (en) | 1983-04-05 |
| JPS6228136Y2 JPS6228136Y2 (en) | 1987-07-18 |
Family
ID=29938544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14561681U Granted JPS5850569U (en) | 1981-09-30 | 1981-09-30 | Electric shock prevention device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5850569U (en) |
-
1981
- 1981-09-30 JP JP14561681U patent/JPS5850569U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6228136Y2 (en) | 1987-07-18 |
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