CN206096678U - Can realize auto -changing shade filter of high shading number - Google Patents
Can realize auto -changing shade filter of high shading number Download PDFInfo
- Publication number
- CN206096678U CN206096678U CN201621141457.5U CN201621141457U CN206096678U CN 206096678 U CN206096678 U CN 206096678U CN 201621141457 U CN201621141457 U CN 201621141457U CN 206096678 U CN206096678 U CN 206096678U
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- control circuit
- positivity
- beam change
- change filter
- 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.)
- Active
Links
Landscapes
- Liquid Crystal (AREA)
Abstract
The utility model discloses an auto -changing shade filter, include: the positive nature liquid crystal of first positive nature liquid crystal and second, a liquid crystal control circuit for control signal according to receiving controls first positive nature liquid crystal and the positive nature liquid crystal of second, the negative phase liquid crystal, this negative phase liquid crystal sets up between first positive nature liquid crystal and the positive nature liquid crystal of second, the 2nd liquid crystal control circuit for control signal according to receiving controls the negative phase liquid crystal, the UVIR light filter for the processing that filters of butt weld arc light, light -operated circuit for detect the welding arc light, produce corresponding control signal and main control circuit is given in output according to the light intensity of the welding arc light that detects, main control circuit connects light -operated circuit, first liquid crystal control circuit and second liquid crystal control circuit respectively for a liquid crystal control circuit and the 2nd liquid crystal control circuit are given to output liquid crystal control signal.
Description
Technical field
This utility model is related to field of photoelectric technology, and in particular to a kind of automatic beam change filter, can be used in high light ring
The eyes of user are protected under border.
Background technology
Automatic beam change filter (Auto Darkening Filter, abbreviation ADF) in currently available technology is by liquid
Crystalline substance, control circuit, solar panel/battery, photosensitive sensor and ultraviolet, infrared filter are combined.Automatically
The liquid crystal become in light-filter generally comprises two panels positivity liquid crystal.Under strong light environment, such as when welding arc occurs, light sensation
Property sensor receive welding arc light after, pass information to control circuit, control circuit output square-wave signal is added to this two panels
Positivity liquid crystal, thus the liquid crystal in instantaneous trigger automatic beam change filter and makes its dimmed, welds ultraviolet in arc light and red
Outside line is reflected, and appropriate visible ray projects the optical fundus of user, and printing opacity is reduced to appropriate degree.Current automatic beam change
The shade number of filter is generally the scope between No. 5 to No. 13, realizes hiding by adjusting the voltage amplitude size of square-wave signal
Change of the light number between No. 5-13.
But the automatic beam change filter of prior art is difficult to higher shade number, so that Liquid crystal module is presented higher
The effect of darkness.This prevents the eye protection effect of automatic beam change filter optimal from reaching, and its power consumption do not drop to yet it is minimum.
The content of the invention
To solve above-mentioned technical problem, this utility model provides a kind of automatic beam change filter, including：First positivity liquid crystal
With the second positivity liquid crystal；First liquid crystal control circuit, for controlling the first positivity liquid crystal according to the control signal for receiving
With the second positivity liquid crystal；Negative liquid crystal, the negative liquid crystal is arranged between the first positivity liquid crystal and the second positivity liquid crystal；
Second liquid crystal control circuit, for controlling the negative liquid crystal according to the control signal for receiving；UV/IR (ultraviolet/infrared
Line) optical filter, for carrying out optical filtering process to welding arc light；Light-operated circuit, for the light intensity of detection welding arc light, according to detection
The corresponding control signal of light strong production of welding arc light is simultaneously exported to main control circuit；Main control circuit, connects respectively light-operated electricity
Road, the first liquid crystal control circuit and the second liquid crystal control circuit, for exporting LCD Controlling signal to first LCD Controlling
Circuit and second liquid crystal control circuit.
According to embodiment of the present utility model, the automatic beam change filter also includes what is be connected with the main control circuit
Darkness setting unit, for arranging the shade number of the automatic beam change filter；The main control circuit sets according to the darkness
The shade number for putting unit setting generates the corresponding LCD Controlling signal to control the first positivity liquid crystal, the second positivity liquid
Brilliant and negative liquid crystal, so that the automatic beam change filter is presented set shading darkness.
According to embodiment of the present utility model, when the automatic beam change filter is in holding state, the shade number quilt
When being set to No. 2.5 to No. 4, under the control of the main control circuit, first liquid crystal control circuit to described first just
Property liquid crystal and the second positivity liquid crystal provide running voltage be 0v；Second liquid crystal control circuit to the negative liquid crystal is provided
Control signal be running voltage for 2.5v to 15v, frequency be square wave or DC voltage between 0.05Hz to 20Hz.
According to embodiment of the present utility model, when the shade number is arranged to No. 5 to No. 15, in main control electricity
Under the control on road, the control signal that first liquid crystal control circuit is provided to the first positivity liquid crystal and the second positivity liquid crystal
Be running voltage for 1.5v to 8v, frequency it is square wave between 10Hz to 60Hz；Second liquid crystal control circuit is born to described
It is the square wave or direct current between 0.05Hz to 20Hz for 2.5v to 15v, frequency that the control signal that phase liquid crystal is provided is running voltage
Voltage.
According to embodiment of the present utility model, first liquid crystal control circuit to the first positivity liquid crystal and second just
Property liquid crystal provide square wave preferred running voltage be 3v to 8v, to realize 14,15 or higher shade number.
According to embodiment of the present utility model, at the end of the optical inductor in the light-operated circuit detects welding operation,
The main control circuit to first liquid crystal control circuit and the second liquid crystal control circuit export darkness ramp control signal, with
Make the automatic beam change filter shading darkness be gradient to from height it is low.
According to embodiment of the present utility model, the automatic beam change filter also includes what is be connected with the main control circuit
With at least one of lower unit：Time delay setting unit, for arranging the optical filtering time delay of the automatic beam change filter；And spirit
Sensitivity setting unit, for arranging the optical filtering sensitivity of the automatic beam change filter.
According to embodiment of the present utility model, the first positivity liquid crystal and the second positivity liquid crystal are positivity positive liquid crystal,
The negative liquid crystal is positivity negative liquid crystal.
This utility model also provides a kind of welding mask component, including above-described automatic beam change filter.
Automatic beam change filter of the present utility model and welding mask can realize the shade number higher than prior art, from
And its eye protection effect is reached most preferably, and minimize its power consumption.
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.
Description of the drawings
Fig. 1 is the circuit structure block diagram of the embodiment of automatic beam change filter of the present utility model；
Fig. 2 be automatic beam change filter of the present utility model embodiment in each liquid crystal relative position relation schematic diagram；
Fig. 3 is the structural representation of the embodiment of welding mask component of the present utility model；
Fig. 4 is the reverse side and front schematic view of the automatic beam change filter in embodiment illustrated in fig. 3；
Fig. 5 is the feature operation area schematic diagram that the reverse side of the automatic beam change filter shown in Fig. 4 is arranged.
Specific embodiment
Fig. 1 illustrates the circuit structure of the embodiment of automatic beam change filter of the present utility model.In this embodiment, automatically
Becoming the circuit part of light-filter includes main control circuit, light-operated circuit, liquid crystal control circuit A and liquid crystal control circuit B.Master control
Circuit processed connects respectively light-operated circuit, liquid crystal control circuit A and liquid crystal control circuit B.Main control circuit is also received and pre-set
Or optical filtering delays time to control parameter, optical filtering darkness control parameter and optical filtering sensitivity control parameter (as shown in fig. 1 on the left-hand side) being input into.
Liquid crystal control circuit A is used to control positivity positive liquid crystal LCD1 and LCD2, and liquid crystal control circuit B is used to control positivity negative liquid crystal
LCD3。
Fig. 2 illustrates the relative position relation of each liquid crystal in the embodiment of automatic beam change filter of the present utility model.In Fig. 2
In shown opticses (i.e. five black strips in the middle part of Fig. 2), include from bottom to top：Ultraviolet/infrared filter
(UV/IR Glass), positivity positive liquid crystal LCD1, positivity negative liquid crystal LCD3, positivity positive liquid crystal LCD2 and shield
White glass, it is assumed here that welding arc light is incident from bottom to top.Liquid crystal control circuit A connects and controls positivity positive liquid crystal
LCD1 and LCD2, liquid crystal control circuit B connect and control positivity negative liquid crystal LCD3.
The present embodiment is using two panels positivity positive liquid crystal and a piece of positivity negative liquid crystal.The phase angle of positivity negative liquid crystal with
The phase angle of two panels positivity positive liquid crystal is contrary.In order to coordinate the mode of operation using this three liquid crystal, by two panels positivity positive
Liquid crystal accesses two different liquid crystal control circuits with a piece of positivity negative liquid crystal.Two are adjusted by the two liquid crystal control circuits
The running voltage of piece positivity positive liquid crystal and a piece of positivity negative liquid crystal, it is possible to achieve 14,15 or higher shade number.Wherein lead to
Overregulate the running voltage of positivity negative liquid crystal to compensate as blackness, on the basis of 14,15 or higher shade numbers are realized, can be with
By automatic beam change filter is standby do not work when shading darkness be reduced between 2.5 to 4.0, user can pass through more clear
Clear, brighter standby observation, it is ensured that more preferable weld preparation.
In embodiment of the present utility model, LCD1 and LCD2 is positivity positive liquid crystal, and LCD3 is positivity negative liquid crystal.
LCD3 liquid crystal both sides glass surface does not have polaroid, inclined on the glass surface that liquid crystalline molecule tilt angle is contacted with LCD1 and LCD2
Mating plate is negative collocation.
When this three liquid crystal are all not powered, light from after LCD1 entrance, because LCD3 and LCD1 are negative collocation, light without
Method enters LCD2 completely through LCD3, and this three liquid crystal combinations appear to be black.The size of darkness can be by adjusting LCD3
Liquid crystalline tilt angle realizing.When LCD1 and LCD2 are not powered, and LCD3 is when powering up, and the liquid crystalline molecule of LCD3 is sent out
Rotation is given birth to and has defined positive collocation with LCD1, LCD2, such three liquid crystal combinations have appeared to be printing opacity.
When there is arc light welding, the optical inductor in light-operated circuit detects welding arc light, the process of Jing operational amplifiers
Afterwards, the signal of detection is transported to main control circuit by light-operated circuit.Main control circuit can be according to detected welding arc light
Intensity correspondingly arranges the shading darkness (corresponding to shade number) of automatic beam change filter, also can voluntarily be arranged by user or defeated
Enter.Main control circuit can include single-chip microcomputer.Operationally, by single-chip microcomputer read user set by or input delays time to control ginseng
Number, darkness control parameter and sensitivity control parameter, and corresponding control signal is exported to liquid crystal control circuit A and B, to control
Liquid crystal LCD1, LCD2 and LCD3 processed, make welding arc light that set darkness is presented after these liquid crystal, to protect user
Eyes escape injury.
When automatic beam change filter is in holding state, or the shade number of automatic beam change filter is arranged to DIN
During 2.5-DIN 4 (DIN represents the unit of Deutsche industry norm (DIN) sensitive film light sensitivitys), main control circuit is by LCD Controlling electricity
It is 0V that road A is added in voltage on liquid crystal LCD1 and LCD2；The running voltage of liquid crystal control circuit B is the low-frequency square-wave of 0.05-20Hz
Or DC voltage, voltage amplitude is between 2.5V-15V.
When darkness parameter is set between No. 5-13, the signal being added on liquid crystal control circuit A is 10-60Hz, voltage
The square wave of amplitude 1.5V-8V, be added on liquid crystal control circuit B still for 0.05-20Hz, voltage amplitude for 2.5V-15V low frequency
Square wave or DC voltage.
When darkness parameter is set to 14,15 or higher shade number, add on two panels positivity positive liquid crystal LCD1 and LCD3
There is the square wave of 3V-8V, now export to the running voltage of positivity negative liquid crystal LCD2 to realize by adjustable liquid crystal display control circuit B
14th, 15 or higher darkness, while the power consumption of automatic beam change filter can be saved.
At the end of welding job, welding arc light disappears.Main control circuit is by liquid crystal control circuit B output controls letter
Number, to adjust the running voltage on positivity negative liquid crystal, realize the shade number of automatic beam change filter from 14, No. 15 or higher number
Gradual change is realized, finally to idle on state of shade number, so that it is guaranteed that user's eyes adapt to the change procedure of darkness, improvement makes
The ocular comfort degree of user.For example, after welding job terminates, first release is added in the running voltage on LCD1 and LCD2, passes through
LCD3 is set in advance so that now the shading darkness of automatic beam change filter is 5～No. 7, is then exported by liquid crystal control circuit B
After square wave or level are on LCD3, make the shading darkness of automatic beam change filter reduces gradually, is changed into such as 2.5 to No. 4, so as to
Realize darkness gradual change from high to low.
In embodiment of the present utility model, positivity liquid crystal LCD1 and LCD3 can adopt positivity positive liquid crystal, negative liquid
Brilliant LCD2 can adopt positivity negative liquid crystal.
Fig. 3 illustrates the structure of the embodiment of welding mask component of the present utility model.The welding mask component includes：For making
The adjustable headband (1) that user wears, filter mounting (2), automatic beam change filter for supporting automatic beam change filter
(3), for protecting front screening glass (4), sealing member (5) and the welding mask (6) of automatic beam change filter.
Left figure and right figure in Fig. 4 is shown respectively the reverse side of the automatic beam change filter (3) in embodiment illustrated in fig. 3 and just
Face.Reverse side shown in left figure in Fig. 4 is provided with battery case (7), liquid crystal board (8) and feature operation area for installing battery
(9).Front shown in right figure in Fig. 4 be provided with several for detection weld arc light welding arc light induction apparatuss (10), with
And for solar panels (11) that solaode is used.
In embodiment of the present utility model, automatic beam change filter (3) can be included and be arranged on feature operation area (9)
Several functional keyss and digital display screen and corresponding circuit unit, as time delay setting unit, darkness setting unit and
Sensitivity setting unit, is respectively used to arrange or input time delay control parameter, darkness control parameter and sensitivity control parameter.
As shown in figure 5, feature operation area (9) include key " ON " and mode switching key " MODE " (91), function switching
Key " FUNC " (92), digital display screen (93), function digit adjusting key " UP " and " DOWN " (94).Key " ON " is used for automatic
Become the unlatching of light-filter, mode switching key " MODE " for example can be used for " darkness 14-15 (DIN 14-15) ", " welding
(WELD) ", " cutting (CUTTING) ", the switching of " grinding (GRIND) " these four patterns, to arrange automatic beam change filter
Realize corresponding different shading darkness.Function switch key " FUNC " (92) is for switching darkness (SHADE), sensitivity
And time delay (DELAY) this three parameter setting functions (SENSITIVITY).Digital display screen (93) can show this three parameters,
Set above-mentioned pattern and battery allowance.Function digit adjusting key is used for when function choosing-item is selected, by button
" UP " and " DOWN " (94) can increase or reduce the Digital size of the parameter that digital display screen (93) rightmost is listed.
Claims (9)
1. a kind of automatic beam change filter, including：
First positivity liquid crystal and the second positivity liquid crystal；
First liquid crystal control circuit, for controlling the first positivity liquid crystal and the second positivity liquid according to the control signal for receiving
It is brilliant；
Negative liquid crystal, the negative liquid crystal is arranged between the first positivity liquid crystal and the second positivity liquid crystal；
Second liquid crystal control circuit, for controlling the negative liquid crystal according to the control signal for receiving；
UV/IR optical filters, for carrying out optical filtering process to welding arc light；
Light-operated circuit, for the light intensity of detection welding arc light, according to the corresponding control signal of light strong production of detection welding arc light
And export to main control circuit；
Main control circuit, connects respectively light-operated circuit, the first liquid crystal control circuit and the second liquid crystal control circuit, for exporting liquid
Brilliant control signal is to first liquid crystal control circuit and second liquid crystal control circuit.
2. automatic beam change filter according to claim 1, also includes the darkness setting unit being connected with the main control circuit,
For arranging the shade number of the automatic beam change filter；
The main control circuit generates the corresponding LCD Controlling signal according to the shade number that the darkness setting unit is arranged
To control the first positivity liquid crystal, the second positivity liquid crystal and negative liquid crystal, so that the automatic beam change filter is presented set
The shading darkness put.
3. automatic beam change filter according to claim 2, wherein, when the automatic beam change filter is in holding state, institute
When stating shade number and being arranged to No. 2.5 to No. 4, under the control of the main control circuit, first liquid crystal control circuit to
The running voltage that the first positivity liquid crystal and the second positivity liquid crystal are provided is 0v；Second liquid crystal control circuit is born to described
It is the square wave or direct current between 0.05Hz to 20Hz for 2.5v to 15v, frequency that the control signal that phase liquid crystal is provided is running voltage
Voltage.
4. automatic beam change filter according to claim 2, wherein, when the shade number is arranged to No. 5 to No. 15, in institute
Under stating the control of main control circuit, first liquid crystal control circuit to the first positivity liquid crystal and the second positivity liquid crystal are provided
Control signal be running voltage for 1.5v to 8v, frequency be square wave between 10Hz to 60Hz；The second LCD Controlling electricity
It is between 0.05Hz to 20Hz for 2.5v to 15v, frequency that the control signal that negative liquid crystal described in road direction is provided is running voltage
Square wave or DC voltage.
5. automatic beam change filter according to claim 4, wherein, first liquid crystal control circuit is to the first positivity liquid
The running voltage of the square wave that brilliant and the second positivity liquid crystal is provided is 3v to 8v.
6. automatic beam change filter according to claim 1, wherein, the optical inductor in the light-operated circuit detects welding behaviour
At the end of work, the main control circuit is to first liquid crystal control circuit and the output darkness gradual change control of the second liquid crystal control circuit
Signal processed so that the shading darkness of the automatic beam change filter be gradient to from height it is low.
7. according to the automatic beam change filter of claim 1 or 2, also include being connected with the main control circuit with lower unit
At least one：
Time delay setting unit, for arranging the optical filtering time delay of the automatic beam change filter；And
Sensitivity setting unit, for arranging the optical filtering sensitivity of the automatic beam change filter.
8. according to the automatic beam change filter of any one of claim 1 to 6, wherein, the first positivity liquid crystal and second is just
Property liquid crystal is positivity positive liquid crystal, and the negative liquid crystal is positivity negative liquid crystal.
9. a kind of welding mask component, including the automatic beam change filter any one of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621141457.5U CN206096678U (en) | 2016-10-20 | 2016-10-20 | Can realize auto -changing shade filter of high shading number |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621141457.5U CN206096678U (en) | 2016-10-20 | 2016-10-20 | Can realize auto -changing shade filter of high shading number |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206096678U true CN206096678U (en) | 2017-04-12 |
Family
ID=59976487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621141457.5U Active CN206096678U (en) | 2016-10-20 | 2016-10-20 | Can realize auto -changing shade filter of high shading number |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206096678U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018072355A1 (en) * | 2016-10-20 | 2018-04-26 | 泰克曼(南京)电子有限公司 | Auto darkening filter achieving high shade number |
| CN110740714A (en) * | 2017-06-15 | 2020-01-31 | 3M创新有限公司 | Sight protective headgear with automatic darkening filter including switchable shutter array |
| CN113194896A (en) * | 2019-09-20 | 2021-07-30 | 奥托斯维株式会社 | Welding protective tool applying optical function layer and panel control technology |
-
2016
- 2016-10-20 CN CN201621141457.5U patent/CN206096678U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018072355A1 (en) * | 2016-10-20 | 2018-04-26 | 泰克曼(南京)电子有限公司 | Auto darkening filter achieving high shade number |
| 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 |
| US10890792B2 (en) | 2016-10-20 | 2021-01-12 | Tecmen Electronics Co., Ltd. | Auto darkening filter capable of achieving high light-shielding number |
| CN110740714A (en) * | 2017-06-15 | 2020-01-31 | 3M创新有限公司 | Sight protective headgear with automatic darkening filter including switchable shutter array |
| CN110740714B (en) * | 2017-06-15 | 2022-04-29 | 3M创新有限公司 | Sight protective headgear with automatic darkening filter including switchable shutter array |
| CN113194896A (en) * | 2019-09-20 | 2021-07-30 | 奥托斯维株式会社 | Welding protective tool applying optical function layer and panel control technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101853639B (en) | Functional display type anti-blinding device | |
| CN206096678U (en) | Can realize auto -changing shade filter of high shading number | |
| US6067129A (en) | Welding lens with integrated display and method | |
| CN101221962B (en) | Display backlight module including photo-sensing device, LCD panel and display equipment | |
| KR20130133798A (en) | Welding helmet having a filter arrangement | |
| CN107966834A (en) | The automatic beam change filter of high shade number can be achieved | |
| CN103309056A (en) | Instant automatic light-adjusting safety lens device | |
| CN101592793B (en) | Full-automatic angle shading eyeglasses | |
| CN102551953B (en) | Automatic light-transforming blinkers for welding operation | |
| WO2018218748A1 (en) | Auto-darkening welding filter and auto darkening welding helmet | |
| CN104407451B (en) | day and night anti-dazzle liquid crystal glasses | |
| CN106774663A (en) | A kind of panel computer with eyesight protection function | |
| CN201259577Y (en) | Liquid crystal bright and dark automatic sun shading sunglass | |
| CN211786375U (en) | Near-to-eye display equipment | |
| CN101592794A (en) | Full-automatic zoning light and shade adjusting sunglasses | |
| KR101446935B1 (en) | Electronic sunglasses having area separate function and the method for driving the same | |
| CN204331183U (en) | Adjustable transparent rate liquid crystal toning glasses | |
| CN201665143U (en) | Automatic color changing automobile anti-dazzle mirror | |
| CN206007464U (en) | Digitlization automatic beam change welding eyeshade | |
| CN106038058A (en) | Digital automatic light-changing welding eye patches | |
| CN106249431B (en) | A kind of intelligent optical filtering liquid crystal sunglasses | |
| CN207627483U (en) | A kind of Auto-changing Shade Welding Mask Made | |
| CN205626266U (en) | Auto -changing shade electric welding face mask with wireless communication function | |
| CN105824134A (en) | Simple and easy hard light resistance eye protector and shielding plate | |
| CN208737166U (en) | Colored filter substrate and display panel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221130 Address after: No.8, Huyue East Road, Longchi street, Liuhe District, Nanjing City, Jiangsu Province Patentee after: Tecman (Nanjing) safety protection equipment Co.,Ltd. Address before: Building D, No. 21, Liuzhou North Road, Xiaoliu Industrial Park, Jiangsu High-tech Zone, Nanjing City, Jiangsu Province, 210031 Patentee before: TECMEN ELECTRONICS Co.,Ltd. |