CN2047393U - Quick photoelectric metachromatic goggles for welding - Google Patents
Quick photoelectric metachromatic goggles for welding Download PDFInfo
- Publication number
- CN2047393U CN2047393U CN 89206160 CN89206160U CN2047393U CN 2047393 U CN2047393 U CN 2047393U CN 89206160 CN89206160 CN 89206160 CN 89206160 U CN89206160 U CN 89206160U CN 2047393 U CN2047393 U CN 2047393U
- Authority
- CN
- China
- Prior art keywords
- light
- microns
- liquid crystal
- welding
- multivibrator
- 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.)
- Withdrawn
Links
- 238000003466 welding Methods 0.000 title abstract description 14
- 230000003458 metachromatic effect Effects 0.000 title abstract description 4
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 26
- 239000011521 glass Substances 0.000 claims description 10
- 238000012216 screening Methods 0.000 claims description 9
- 230000001012 protector Effects 0.000 claims description 7
- 238000002310 reflectometry Methods 0.000 claims description 3
- 230000005622 photoelectricity Effects 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 description 5
- 210000002858 crystal cell Anatomy 0.000 description 4
- 239000005357 flat glass Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000005308 flint glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Landscapes
- Liquid Crystal (AREA)
Abstract
The utility model discloses a quick photoelectric metachromatic goggles for welding, characterized in that the quick photoelectric metachromatic goggles for welding comprises a protecting sheet, a liquid crystal light valve, a wide-band filter, a multivibrator, a light sensitive element, etc. When welding, the welded objects can be always saw without frequently overturning a face guard. The utility model has the advantages of high efficiency, small size, convenient operation, and safety, and the utility model can protect eyes.
Description
The utility model belongs to articles for labour protection, relates to a kind of Eye protector for welder.
Traditional Eye protector for welder is to make of the constant optical filter of transmittance, because this optical filter visible light transmissivity is very low, need removes when welding and could operate after safety goggles has been observed position while welding, often eyes is burnt.And need take a hand and turn over and lift face shield and influence welding quality and efficient, more on top of difficult to begining to learn the workman.In order to address this problem, BrP GB2122366A has disclosed a kind of integrated circuit of photoelectric control that adopts and has driven the safety goggles that liquid crystal light valve is finished switch motion automatically, but liquid crystal light valve can't be eliminated ultraviolet, infrared optical transmission, cause the damage of ultraviolets a large amount of in the arc spectrum, infrared light to eyes, and liquid crystal material there is aging action, the standard of the spectral transmittance of issuing fixed Eye protector for welder of can not meeting international standards.
The purpose of this utility model is to avoid above-mentioned weak point of the prior art and provides a kind of harmful ultraviolet light and infrared light reflection are fallen, and the photoelectric control Eye protector for welder of variable color fast.
The utility model is realized by following technical proposals: photoelectricity variable color Eye protector for welder is made up of Light Electronic Control System and the anti-safety goggles that has screening glass fast; special character of the present utility model is on the face shield of long 108mm, wide 50mm, and broadband filter, the liquid crystal light valve of light activated element, multivibrator, microswitch, minicell and screening glass, reflective infrared and ultraviolet light and transmissive visible light is installed.The output of multivibrator is controlled by light activated element, and liquid crystal light valve is driven by multivibrator.
Broadband filter of the present utility model is for the ultraviolet light between 210 microns to 365 microns of the wavelength, its reflectivity is greater than 99%, for the infrared light between 780 microns to 2000 microns of the wavelength, its mean transmissivity is greater than 99%, for the visible light between 365 microns to 780 microns, its mean transmissivity is greater than 5%.
The utility model is described in further detail below in conjunction with embodiment of the present utility model and accompanying drawing: the long 108mm of screening glass (5), wide 50mm, thick 2 to 3mm, adopt the flint glass sheet to make, its effect is mechanical protection and prevents that wave filter, liquid crystal light valve and circuit part from being damaged by the high temperature sputter Mars in the electric welding process.Screening glass (5) can often be changed, and does not need the full wafer safety goggles discarded.It between screening glass (5) and liquid crystal light valve (1) broadband filter (6) of reflective infrared and ultraviolet light and transmissive visible light; its effect is to filter harmful ultraviolet, infrared light; for the ultraviolet light between 210 microns to 365 microns of the wavelength; its reflectivity is greater than 99%; for the infrared light between 780 microns to 2000 microns of the wavelength; its average reflectance is greater than 99%, and for the visible light between 365 microns to 780 microns, its average transmittance is greater than 5%.The making of broadband filter (6) is to be coated with the layer of even metal film on the thick glass substrate of 0.5mm to 1.5mm, as gold, copper, also can realize with plating the periodic dielectric film.In wave filter (6) back is liquid crystal light valve (1), stack by two liquid crystal cells and to form, be coated with transparency electrode (9) in liquid crystal cell optical flat glass (8) inboard, the liquid crystal cell outside has three polarizing coatings (7) respectively, and the polarization direction should be orientated unanimity.Liquid crystal material (10) is filled between the liquid crystal cell optical flat glass (8), and thickness of liquid crystal is determined with space washer (11), with sealant (12) sealing.Liquid crystal light valve (1) is driven by the multivibrator (as 4047B) of the symmetrical square-wave voltage of output, suitably selects resistance, capacitance parameter, and its output frequency is between 30 hertz to 250 hertz.The output of multivibrator (13) is controlled by light activated element (2) (can be photodiode, phototriode or silicon photocell), light activated element (2) is installed between two groups of liquid crystal light valves (1), and other circuit part is installed in the following space of liquid crystal light valve (1).Power supply is provided by the miniature button cell (group) (14) of 3V to 6V, and battery (14) is installed in the following space of liquid crystal light valve (1).In the safety goggles back, a microswitch (4) is housed.
Principle of work of the present utility model is when no electro-welding arc, and light activated element (2) is in the current cut-off state, multivibrator (13) output symmetrical square wave, and liquid crystal light valve (1) is subjected to electric field driven to become pellucidity; When electro-welding arc, light activated element (2) conducting, multivibrator (13) is output as zero, and liquid crystal light valve (1) becomes black rapidly.
The utility model has filtered harmful ultraviolet, infrared light and can quick color-changing, need not turn over during electric welding to lift protective face mask and can see from start to finish welded article, has improved welding quality and efficient, and the eyes of protection welding worker. Have the characteristics such as volume is little, easy to use, safe.
Description of drawings:
Fig. 1--front elevation of the present utility model
Fig. 2--rear view of the present utility model
The cut-open view of Fig. 3--screening glass, wave filter and liquid crystal light valve
Fig. 4--the block scheme of the utility model photoelectric switching circuit
1---liquid crystal light valve (1)
2---light activated element (2)
3---circuit part is installed
4---microswitch (4)
5---screening glass (5)
6---broadband filter (6)
7---polarizing coating (7)
8---optical flat glass (8)
9---transparency electrode (9)
10---liquid crystal material (10)
11---space washer (11)
12---sealant (12)
13---multivibrator (13)
14---minicell (14)
Claims (2)
1, a kind of quick photoelectricity variable color Eye protector for welder; form by Light Electronic Control System and the anti-safety goggles that has screening glass (5); it is characterized in that on the face shield of long 108mm, wide 50mm; broadband filter (6), the liquid crystal light valve (1) of light activated element (2), multivibrator (13), microswitch (4), minicell (14) and screening glass (5), reflective infrared and ultraviolet light and transmissive visible light are installed; the output of multivibrator (13) is by light activated element (2) control, and liquid crystal light valve (1) is driven by multivibrator (13).
2, Eye protector for welder according to claim 1, it is characterized in that broadband filter (6) is for the ultraviolet light between 210 microns to 365 microns of the wavelength, its reflectivity is greater than 99%, for the infrared light between 780 microns to 2000 microns of the wavelength, its average reflectance is greater than 99%, for the visible light between 365 microns to 780 microns, its mean transmissivity is greater than 5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89206160 CN2047393U (en) | 1989-04-29 | 1989-04-29 | Quick photoelectric metachromatic goggles for welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89206160 CN2047393U (en) | 1989-04-29 | 1989-04-29 | Quick photoelectric metachromatic goggles for welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2047393U true CN2047393U (en) | 1989-11-08 |
Family
ID=4863267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89206160 Withdrawn CN2047393U (en) | 1989-04-29 | 1989-04-29 | Quick photoelectric metachromatic goggles for welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2047393U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100364492C (en) * | 2005-09-27 | 2008-01-30 | 黄宁宁 | Production of filter lens for arc welding |
| CN102317843A (en) * | 2009-01-30 | 2012-01-11 | 阿法密克罗有限公司 | Attachable optics arrangement and method |
-
1989
- 1989-04-29 CN CN 89206160 patent/CN2047393U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100364492C (en) * | 2005-09-27 | 2008-01-30 | 黄宁宁 | Production of filter lens for arc welding |
| CN102317843A (en) * | 2009-01-30 | 2012-01-11 | 阿法密克罗有限公司 | Attachable optics arrangement and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| 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 |