CN2151732Y - Blackness adjustable electronic auto welding colour filter glass - Google Patents
Blackness adjustable electronic auto welding colour filter glass Download PDFInfo
- Publication number
- CN2151732Y CN2151732Y CN 93201478 CN93201478U CN2151732Y CN 2151732 Y CN2151732 Y CN 2151732Y CN 93201478 CN93201478 CN 93201478 CN 93201478 U CN93201478 U CN 93201478U CN 2151732 Y CN2151732 Y CN 2151732Y
- Authority
- CN
- China
- Prior art keywords
- blackness
- liquid crystal
- color filtering
- colour filter
- welding
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a pair of automatic electronic welding color filtering glasses whose blackness is adjustable, and the utility model which is used for protecting eyes during welding mainly comprises a liquid crystal light valve, a color filtering sheet, a photoelectric control circuit and a liquid crystal drive circuit. The color filtering glasses can become dark instantly and automatically under the function of the photoelectric controller during arc staring. Besides, an operator can regulate the blackness of the color filtering glasses according to the intensity of electric arc to enable luminous flux entering pupillae to keep constant, and the operator can clearly observe the process of welding simultaneously. The color filtering glasses restore to transparent state when arc extinguishing is carried out.
Description
This utility model relates to electronics and optical technical field, is a kind of appliances for labor protection that use in welding.
Disclose a kind of welding with the automatic protective eye lens of electronics in Chinese utility model patent description (91231325.0), it is made up of front and back screening glass, optical interference filter, polaroid, LCD panel, liquid crystal driver, control circuit and light-sensitive element.When arc-welding striking automatic deepening of moment, operator's eyes are protected, can see pad clearly during no arc light.The automatic protective eye lens of this electronics has the following disadvantages:
Protective eye lens shade number under dark attitude is a definite value, must select the protective eye lens of different shade numbers according to the size of electric welding electric current in the use, uses inconvenient.
This utility model aims to provide a kind of blackness adjustable electron and welds colour filter automatically.
This utility model mainly is made up of optical filter, liquid crystal light valve, photoelectric control circuit, liquid crystal driver, triple gate, blackness regulating circuit.The blackness regulating circuit is made of potentiometer and operational amplifier, and wherein potentiometer is as potentiometer, and operational amplifier is as follower, the outfan of the input termination liquid crystal driver of circuit, and outfan drives liquid crystal light valve by triple gate.
Advantage of the present utility model is, owing to increased the blackness regulating circuit, makes the blackness of colour filter adjustable continuously, avoids in the welding process because of the strong and weak different colour filter of changing different shade numbers of electric arc.
Accompanying drawing is a structure principle chart of the present utility model.
Below with reference to accompanying drawing it is further described.
With reference to accompanying drawing; it is by screening glass (1), (10); optical filter (2); polaroid (3), (5), (7), (9); LCD panel (4), (6), (8), photoelectric control circuit (11), blackness regulating circuit (12); liquid crystal driver (13), triple gate (14), (15) constitute.Wherein the blackness regulating circuit is by potentiometer W, and operational amplifier A is formed.The plane of polarization of each polaroid is parallel to each other.Light only sees through visible light by behind the optical filter.When energized not before the striking, photoelectric control circuit is opened triple gate (15), close triple gate (14), give LCD panel (4), (6), (8) added electric field, make it not produce rotation effect, light linear polarization luminous energy behind polaroid (3) by optical filter passes through LCD panel (4), (6), (8), and polaroid (5), (7), (9) form emergent light.So the time colour filter be pellucidity.When striking; photoelectric controller receives the arclight signal; close triple gate (15); open triple gate (14); change the voltage of electric field that is added on the liquid crystal light valve by regulation voltage device W; regulate the transmitance of liquid crystal light valve, operator's eyes are protected clearly observe welding process again simultaneously.
Claims (2)
1, a kind of adjustable blackness electronics that is used to weld time protection eyes welds colour filter automatically; form by optical filter, liquid crystal light valve, photoelectric control circuit, triple gate, liquid crystal display drive circuit, it is characterized in that also comprising in the liquid crystal display drive circuit that scalable drives the blackness regulating circuit of liquid crystal light valve voltage swing.
2, colour filter according to claim 1, it is characterized in that described blackness regulating circuit is made of potentiometer W and operational amplifier A, the one fixing outfan of termination liquid crystal driver of potentiometer, another stiff end ground connection, activity termination operational amplifier positive input terminal, the operational amplifier negative input end, outfan connects with the triple gate input.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93201478 CN2151732Y (en) | 1993-01-12 | 1993-01-12 | Blackness adjustable electronic auto welding colour filter glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93201478 CN2151732Y (en) | 1993-01-12 | 1993-01-12 | Blackness adjustable electronic auto welding colour filter glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2151732Y true CN2151732Y (en) | 1994-01-05 |
Family
ID=33785945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93201478 Expired - Fee Related CN2151732Y (en) | 1993-01-12 | 1993-01-12 | Blackness adjustable electronic auto welding colour filter glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2151732Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445325A (en) * | 2010-10-13 | 2012-05-09 | 上海市安全生产科学研究所 | Device and method for measuring shade number of automatic darkening welding filter |
| CN102854652A (en) * | 2011-06-29 | 2013-01-02 | 信利半导体有限公司 | Liquid crystal light valve |
| CN103976820A (en) * | 2014-04-30 | 2014-08-13 | 信利半导体有限公司 | Electric welding mask and driving circuit thereof |
| CN104115041A (en) * | 2012-01-25 | 2014-10-22 | 3M创新有限公司 | Automatic welding filter with tunable spectral transmission |
| CN104434395A (en) * | 2014-12-26 | 2015-03-25 | 许昌学院 | Device capable of increasing light changing speed of protective cover of electric welding machine and prolonging service life of light valve |
| CN107966834A (en) * | 2016-10-20 | 2018-04-27 | 泰克曼(南京)电子有限公司 | The automatic beam change filter of high shade number can be achieved |
-
1993
- 1993-01-12 CN CN 93201478 patent/CN2151732Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445325A (en) * | 2010-10-13 | 2012-05-09 | 上海市安全生产科学研究所 | Device and method for measuring shade number of automatic darkening welding filter |
| CN102854652A (en) * | 2011-06-29 | 2013-01-02 | 信利半导体有限公司 | Liquid crystal light valve |
| CN104115041A (en) * | 2012-01-25 | 2014-10-22 | 3M创新有限公司 | Automatic welding filter with tunable spectral transmission |
| CN103976820A (en) * | 2014-04-30 | 2014-08-13 | 信利半导体有限公司 | Electric welding mask and driving circuit thereof |
| CN104434395A (en) * | 2014-12-26 | 2015-03-25 | 许昌学院 | Device capable of increasing light changing speed of protective cover of electric welding machine and prolonging service life of light valve |
| CN107966834A (en) * | 2016-10-20 | 2018-04-27 | 泰克曼(南京)电子有限公司 | The automatic beam change filter of high shade number can be achieved |
| CN107966834B (en) * | 2016-10-20 | 2020-08-28 | 泰克曼(南京)电子有限公司 | Automatic light-changing filter capable of realizing high shading number |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |