CN210243994U - Liquid crystal electronic anti-dazzle light polarization goggles - Google Patents
Liquid crystal electronic anti-dazzle light polarization goggles Download PDFInfo
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- CN210243994U CN210243994U CN201921287352.4U CN201921287352U CN210243994U CN 210243994 U CN210243994 U CN 210243994U CN 201921287352 U CN201921287352 U CN 201921287352U CN 210243994 U CN210243994 U CN 210243994U
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Abstract
The utility model provides a liquid crystal electronic anti-dazzle polarization goggles, which comprises a lens fixing frame (300), a left glasses leg (600), a right glasses leg (700), a left lens (100), a right lens (200) and a liquid crystal control circuit embedded in the left glasses leg (600); the left lens (100) and the right lens (200) are identical in structure and sequentially comprise a front protective layer (111), a front polarizing plate (112), a front glass sheet (120A), a liquid crystal adjustable layer (130), a rear glass sheet (120B), a rear polarizing plate (113) and a rear protective layer (114) from the far-eye end to the near-eye end. The utility model provides a liquid crystal electronics anti-dazzle polarization goggles based on subregion control realizes that the occasion that still needs observation operation under some local highlight environment such as driving at night, backlight operation uses, realizes the anti-dazzle purpose function of local light filtering.
Description
Technical Field
The utility model belongs to the technical field of the lens design, concretely relates to anti-dazzle polarization goggles of liquid crystal electronics.
Background
The existing anti-glare glasses mainly comprise common sunglasses, polarized sunglasses, color-changing glasses and the like. The ordinary sunglasses are made up by adding different colouring compounds into glass, and mainly by means of self-absorption of light ray it can reduce sunlight intensity. The polarized sunglasses filter out part of polarized light of object glare through the polarization filtering principle, and are particularly suitable for occasions such as fishing, tourism, riding, outdoor sports and the like. The photochromic glasses realize the photochromic effect by adding a small amount of silver halide as a photosensitizer and a trace amount of copper as a sensitizer in the glass lenses, are colorless and transparent indoors at ordinary times, and quickly become grey or other colors when exposed to sunlight, so the color of the glasses can automatically become dark or light along with the intensity of the sunlight, thereby realizing the function of automatic anti-glare.
In general daily life, the anti-glare glasses completely meet the requirements, but in some local strong light environments such as night driving and backlight operation and occasions where observation and operation are still needed, the various existing glasses cannot meet the requirements of people. Therefore, designing and researching an anti-dazzle glasses, filtering out a strong light source, realizing an anti-dazzle effect, simultaneously not reducing the environmental light intensity, meeting the driving requirements of people, and being a matter to be solved at present.
SUMMERY OF THE UTILITY MODEL
The defect to prior art existence, the utility model provides a liquid crystal electronics anti-dazzle polarization goggles can effectively solve above-mentioned problem.
The utility model adopts the technical scheme as follows:
the utility model provides a liquid crystal electronic anti-dazzle polarization goggles, which comprises a lens fixing frame (300), a left glasses leg (600), a right glasses leg (700), a left lens (100), a right lens (200) and a liquid crystal control circuit embedded in the left glasses leg (600);
the left lens (100) and the right lens (200) are respectively embedded and mounted on the left side and the right side of the lens fixing frame (300), and the left end of the lens fixing frame (300) is hinged with the left eyeglass leg (600) through a left connecting mechanism (400); the right end of the lens fixing frame (300) is hinged with the right glasses leg (700) through a right connecting mechanism (500);
the left lens (100) and the right lens (200) are identical in structure and sequentially comprise a front protective layer (111), a front polarizing plate (112), a front glass sheet (120A), a liquid crystal adjustable layer (130), a rear glass sheet (120B), a rear polarizing plate (113) and a rear protective layer (114) from the far-eye end to the near-eye end; the polarization absorption axis direction of the front polarizer (112) is set to be parallel to a connecting line between the centers of the left lens (100) and the right lens (200); the polarization absorption axis direction of the rear polarizer (113) is set to be vertical to a connecting line between the centers of the left lens (100) and the right lens (200), namely: the polarization absorption axis direction of the front polarizer (112) is vertical to the polarization absorption axis direction of the rear polarizer (113);
the liquid crystal tunable layer (130) comprises, in order from a far-eye end to a near-eye end: a front electrode layer (131), a front alignment layer (132), a liquid crystal layer (133), a rear alignment layer (134), and a rear electrode layer (135); wherein the front electrode layer (131) is divided into a plurality of sub-regions on the whole lens, each sub-region forming an independent sub-region electrode; the orientation direction of the front orientation layer (132) is consistent with the polarization transmission axis direction of the front polarizer (112); the orientation direction of the rear orientation layer (134) is consistent with the polarization transmission axis direction of the rear polarizer (113);
a cable is led out from each sub-region electrode and is connected to the liquid crystal control circuit; a cable is led out from the rear electrode layer (135) and is connected to the liquid crystal control circuit;
the liquid crystal control circuit comprises a battery (610), a microcontroller (620), a photoresistor (630), a conventional resistor and a voltage encoder (640) which are connected in series; the output end of the battery (610) is connected with the input end of the microcontroller (620); an ADC conversion interface of the microcontroller (620) is connected with the photoresistor (630) and the conventional resistor; the microcontroller (620) is connected with the voltage encoder (640) through a bus; the voltage encoder (640) is connected to the circuit formed by each of the sub-region electrodes and the back electrode layer (135).
Preferably, the front protective layer (111) and the rear protective layer (114) are made of resin or optical glass.
Preferably, the front glass sheet (120A) and the rear glass sheet (120B) are of a cambered surface type having optical power.
Preferably, the area of the sub-zone of the lens divided in the central zone is smaller than the area of the sub-zone of the lens divided in the outer zone.
The utility model provides a liquid crystal electronics anti-dazzle polarization goggles has following advantage:
the utility model provides a liquid crystal electronics anti-dazzle polarization goggles realizes driving night, the occasion use of still need observing the operation under some local highlight environment such as backlight operation, realizes the anti-dazzle purpose function of local light filtering.
Drawings
Fig. 1 is a general structure diagram of the liquid crystal electronic anti-glare polarization goggles provided by the present invention;
FIG. 2 is a schematic diagram of a cross-sectional structure of a liquid crystal electronic anti-glare polarizing goggles with a variable light lens in the area;
FIG. 3 is a schematic structural view of the electronic control device for changing light in the liquid crystal electronic anti-glare polarization goggles
Fig. 4 is a schematic view of a liquid crystal electronic control switch of a single light-changing area provided by the present invention;
fig. 5 is a schematic diagram of the liquid crystal electronic anti-glare light polarization goggles provided by the present invention.
Wherein:
100: a left lens;
110A: a front polarizer; 110B: a rear polarizer; 111: a front protective layer; 112: a front polarizer; 113: a rear polarizing plate; 114: a rear protective layer;
120A: a front glass sheet; 120B: a rear glass sheet; 121: a front glass sheet; 122: a rear glass sheet;
130: a liquid crystal tunable layer; 131 front electrode layer, 132 front alignment layer, 133 liquid crystal layer, 134 back alignment layer, 135 back electrode layer;
198: a left local light blocking area; 199: a left lens subdivision area;
200: a right lens; 298: a right local light blocking area; 299: a right lens subdivision area;
300: a lens fixing frame;
400: a left connecting mechanism;
500: a right connecting mechanism;
600: a left eye temple; 610: a battery; 620: a microcontroller; 630: a photoresistor; 640: a voltage encoder; 650: connecting the line group; 651: a connecting line;
700: and a right glasses leg.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to further explain the present invention in detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Problem to prior art can not solve local light filtering, the utility model provides a liquid crystal electronics anti-dazzle polarization goggles based on zone control realizes driving at night, uses in some local highlight environment such as adverse light operation still need observe the occasion of operation, realizes local light filtering anti-dazzle purpose function.
Referring to the drawings, the present invention provides a liquid crystal electronic anti-glare polarization goggles, which includes a lens fixing frame 300, a left glasses leg 600, a right glasses leg 700, a left lens 100, a right lens 200, and a liquid crystal control circuit embedded in the left glasses leg 600;
the left and right sides of the lens fixing frame 300 are respectively embedded with the left lens 100 and the right lens 200, and the left end of the lens fixing frame 300 is hinged with the left eyeglass leg 600 through the left connecting mechanism 400; the right end of the lens fixing frame 300 is hinged with the right glasses leg 700 through the right connecting mechanism 500;
the left lens 100 and the right lens 200 have the same structure, and the cross-sectional structure thereof sequentially comprises a front protective layer 111, a front polarizing plate 112, a front glass sheet 120A, a liquid crystal adjustable layer 130, a rear glass sheet 120B, a rear polarizing plate 113 and a rear protective layer 114 from the far-eye end to the near-eye end;
the front protective layer 111 and the rear protective layer 114 may be made of a transparent material such as resin or optical glass, and have a certain scratch resistance to protect the front and rear polarizers of the inner layer.
The front polarizer 112 and the rear polarizer 113 are disposed between the front protective layer 111 and the rear protective layer 114, and respectively closely attached to the front protective layer 111 and the rear protective layer 114 for polarization and polarization detection of external natural light. The polarization absorption axis direction of the front polarizer 112 is set to be parallel to the line between the centers of the left lens 100 and the right lens 200; the polarization absorption axis direction of the rear polarizer 113 is set perpendicular to the line between the centers of the left and right lenses 100 and 200, that is: the polarization absorption axis direction of the front polarizer 112 is kept perpendicular to the polarization absorption axis direction of the rear polarizer 113;
the front glass plate 120A and the back glass plate 120B are sandwiched between the front and back polarizing plates, and are respectively closely attached to the front and back polarizing plates for supporting the liquid crystal tunable layer. If the front and back glass layers are made into cambered surface type with focal power, the vision correction function of ametropia can be realized on the basis of realizing the purpose of local filtering and anti-dazzle. A liquid crystal tunable layer 130 sandwiched between the front and rear glass plates, comprising in order from the distal eye end to the proximal eye end: a front electrode layer 131, a front alignment layer 132, a liquid crystal layer 133, a rear alignment layer 134, and a rear electrode layer 135;
the front electrode layer 131 is divided into a plurality of sub-regions on the whole lens for the area control of the liquid crystal adjustable light, wherein the area of the sub-region divided by the lens in the central region is smaller than that of the sub-region divided by the lens in the outer region. Each subregion forms an independent subregion electrode; the front alignment layer 132 and the rear alignment layer 134 serve to control the alignment direction of liquid crystal molecules, the alignment direction of the front alignment layer 132 being in accordance with the polarization transmission axis direction of the front polarizer 112; the orientation direction of the rear orientation layer 134 coincides with the polarization transmission axis direction of the rear polarizer 113;
the liquid crystal layer 133 is sandwiched between the front and rear alignment layers, and serves as a core working substance for light intensity control, and the area controllable adjustment of the light intensity of the lens is realized through voltage control.
The back electrode layer is an integral electrode area and is used as a common zero potential reference point of electrodes of different sub-areas of the front electrode layer.
In the present application, the principle of the arrangement of the polarizer and the alignment layer is as follows:
first, the basic process flow of the liquid crystal electronic anti-glare polarization goggles will be described. The upper and lower pieces of glass with transparent electrodes are coated with a thin layer of alignment material (rubbing alignment agent polyimide PI or photo alignment agent SD1) on the surface thereof. After the alignment layers are subjected to specific process treatment such as rubbing (for PI materials) or ultraviolet exposure (for SD1 materials), spacer materials are sprayed on the surface of the alignment layer of one piece of glass, the other piece of glass is covered to be aligned and pressed, the two alignment layers are kept to be attached to the spacer, and the alignment directions of the alignment layers are kept to be perpendicular to each other. And then, the periphery is sealed, and a liquid crystal filling opening is reserved for filling crystals, so that a liquid crystal box with the thickness of several microns is manufactured. TN type liquid crystal material (such as E7 material) is injected into the liquid crystal cell, and due to the anchoring effect of the orientation layer on the liquid crystal molecules, the rod-shaped molecules of the TN type liquid crystal are arranged between the upper electrode and the lower electrode in parallel, the molecules close to the upper electrode are arranged in parallel with the horizontal plane, and the molecules close to the lower electrode are arranged in perpendicular to the horizontal plane. Namely: the molecules between the upper and lower electrodes in the liquid crystal layer are gradually twisted.
The incident light is natural light, and polarized light is formed by an upper polarizing plate (polarizer) having a polarization transmission axis direction identical to the arrangement direction of the liquid crystal molecules on the upper electrode plane. After the polarized light passes through the liquid crystal layer, the polarization direction is twisted by 90 degrees, when the polarized light reaches the lower polarization plate (analyzer), the polarization direction is kept parallel to the transmission axis direction of the lower polarization plate, the polarized light passes through the lower polarization plate, and the liquid crystal lens is transparent, so that an object can be clearly seen.
When higher voltage is applied between the upper and lower electrodes, the liquid crystal molecules at the electrode part are converted into vertical arrangement with the upper and lower glass surfaces under the action of the electric field, and the liquid crystal layer loses optical rotation. The polarized light passes through the liquid crystal layer without changing direction, the direction of the polarized light is different from the direction of the polarization transmission axis of the lower polarizer by 90 degrees, the light is absorbed by the lower polarizer, and no light is transmitted out, so that the light shielding is realized.
Generally, the applied voltage is between a high voltage (e.g., 4-5V) and a low voltage (e.g., 0-1V), thereby achieving continuous dimming between on and off light.
In the application, a cable is led out from each sub-area electrode and is connected to the liquid crystal control circuit; a cable is led out from the back electrode layer 135 and is connected to the liquid crystal control circuit to serve as a common reference electrode of the control electrodes of the sub-regions;
the liquid crystal control circuit comprises a battery 610, a microcontroller 620, a photoresistor 630, a conventional resistor and a voltage encoder 640 which are connected in series; the output end of the battery 610 is connected with the input end of the microcontroller 620, the ADC conversion interface of the microcontroller 620 is connected with the photoresistor 630 and the conventional resistor, and the voltage value of the photoresistor is collected by the microcontroller in real time through the ADC conversion interface and is converted into digital light intensity information corresponding to the ambient light intensity; the microcontroller is connected with the voltage encoder through a bus, and sends the liquid crystal driving voltage value corresponding to the digital light intensity information to the voltage encoder; the voltage encoder is connected with a circuit formed by each sub-area electrode and the rear electrode layer 135, and loads the liquid crystal driving voltage value corresponding to the digital light intensity information on each corresponding electrode, so as to realize the control of the liquid crystal adjustable layer and the adjustment of the transmission light intensity of the spectacle lenses.
In a specific implementation, the lens fixing frame 300 is used as a fixing device for the left and right lenses, and connects and fixes the left and right lenses according to the standard size of the glasses, and meanwhile, the lens fixing frame 300 includes an electrode connecting line for driving the liquid crystal lens.
The left and right glasses legs are used as connecting mechanisms of the glasses and the head of a human body, the whole glasses are fixed on the head of the human body according to the standard size of the glasses, and meanwhile, a battery, a microcontroller, a voltage encoder, a photoresistor, an electrode connecting wire and the like required for driving a liquid crystal lens are contained in one of the left and right glasses legs.
The two connecting mechanisms between the spectacle frame and the left and right spectacle legs connect the spectacle frame and the left and right spectacle legs according to the standard sizes of the spectacles, and the connecting mechanisms contain electrode connecting wires for driving the liquid crystal lenses.
The liquid crystal control circuit embedded in the glasses leg is fixed in one of the two glasses legs, and comprises: a battery, a microcontroller, a voltage encoder, a photoresistor, an electrode connecting wire and the like which are required for driving the liquid crystal lens.
The utility model provides a pair of liquid crystal electronics anti-dazzle polarization goggles, the main design principle is:
(1) the lens can realize holistic dimming effect according to outside light intensity, realizes the anti-dazzle function.
In this case, the voltage between each sub-region electrode and the back electrode layer 135 is kept consistent, and the overall brightness of the lens is automatically adjusted by the photoresistor according to the change of the ambient light intensity.
Since the lens contains liquid crystal material, namely: the liquid crystal layer 133 can control the overall light intensity of the lens by voltage, thereby realizing an anti-glare function.
In the application, the lens of the liquid crystal electronic anti-dazzle polarization goggles is structurally divided into a plurality of independently controllable sub-regions, and the brightness and darkness of each sub-region is adjusted and controlled through the corresponding driving voltage. When the voltage is relatively high (such as 4V-5V), the light is dark, and almost the light is blocked; when the voltage is relatively low (for example, 0V to 1V), the light transmittance is good and the film is almost transparent.
Referring to fig. 5, the glasses have a photo resistor, the photo resistor is disposed at an ADC conversion interface of the microcontroller, and is configured to change an input voltage sent to the voltage encoder by the microcontroller according to the brightness of the ambient light, and the voltage encoder automatically adjusts the overall light intensity of all sub-regions of the liquid crystal light-changing glasses lens according to the change of the corresponding input voltage. For example, when the light intensity of the external environment is weak, the resistance value of the photoresistor is large, the voltage loaded on the liquid crystal is small, the transmissivity of the liquid crystal lens is high, and the normal use of the lens is not affected. When the light intensity of the external environment is relatively high, the resistance value of the photosensitive resistor is relatively low, the voltage loaded on the liquid crystal is relatively high, and the transmissivity of the liquid crystal lens is reduced along with the reduction, so that the function of self-adaptive dimming is realized.
In particular, the microcontroller is powered by a power supply and begins operation, wherein an I/O interface outputs a suitable voltage value, such as U05V, thenBy a light-sensitive resistor (e.g. R)0Adjustable 10K Ω -1M Ω) with conventional resistors (e.g. R)1100K Ω) to obtain a variable divided voltage value U1. Then, the variable voltage division value U is processed through an ADC interface of the microcontroller1And (4) carrying out digital acquisition, namely carrying out digital conversion on the change of the ambient light intensity in real time. Wherein the voltage division value U1Output U of I/O interface with microcontroller0The relationship between them is: u shape1＝U0*R1/(R0+R1)。
Resistance of the photoresistor R0Decreasing with increasing ambient light intensity, e.g. R at night when there is no light01M omega, the resistance decreases to R when the sun is strong in sunny days010K Ω. Setting a suitable conventional resistance, e.g. R1When 100K Ω, then:
when the sun is strong in sunny days: u shape1＝U0*R1/(R0+R1) 4.54V; the light is dark, so that the anti-dazzling function is realized;
when no light is present at night: u shape1＝U0*R1/(R0+R1) The light permeability is good and meets the requirement of normal use, and the light permeability is 0.45V.
(2) The lens can realize the function of local area light filtering and the function of local light filtering and anti-dazzle
A localized anti-glare design is particularly desirable when a localized intense light source is present in a uniform ambient light, such as when driving into the sun or at night.
At this time, the driving voltage values of the sub-regions of one or more specific positions are set in advance in the voltage encoder according to the eye habits of individuals, regardless of the change of the photo-resistance. When a user has application requirements, the local anti-glare switch K is manually opened, a specially applied high voltage (such as 4V-5V) is started in the corresponding specific sub-area by the micro-switch connected with the switch K, and other areas are still regulated and controlled by the photoresistor, so that the functions of light blocking and anti-glare in the areas are realized.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be viewed as the protection scope of the present invention.
Claims (4)
1. The liquid crystal electronic anti-dazzle polarization goggles are characterized by comprising a lens fixing frame (300), left glasses legs (600), right glasses legs (700), left lenses (100), right lenses (200) and a liquid crystal control circuit embedded into the left glasses legs (600);
the left lens (100) and the right lens (200) are respectively embedded and mounted on the left side and the right side of the lens fixing frame (300), and the left end of the lens fixing frame (300) is hinged with the left eyeglass leg (600) through a left connecting mechanism (400); the right end of the lens fixing frame (300) is hinged with the right glasses leg (700) through a right connecting mechanism (500);
the left lens (100) and the right lens (200) are identical in structure and sequentially comprise a front protective layer (111), a front polarizing plate (112), a front glass sheet (120A), a liquid crystal adjustable layer (130), a rear glass sheet (120B), a rear polarizing plate (113) and a rear protective layer (114) from the far-eye end to the near-eye end; the polarization absorption axis direction of the front polarizer (112) is set to be parallel to a connecting line between the centers of the left lens (100) and the right lens (200); the polarization absorption axis direction of the rear polarizer (113) is set to be vertical to a connecting line between the centers of the left lens (100) and the right lens (200), namely: the polarization absorption axis direction of the front polarizer (112) is vertical to the polarization absorption axis direction of the rear polarizer (113);
the liquid crystal tunable layer (130) comprises, in order from a far-eye end to a near-eye end: a front electrode layer (131), a front alignment layer (132), a liquid crystal layer (133), a rear alignment layer (134), and a rear electrode layer (135); wherein the front electrode layer (131) is divided into a plurality of sub-regions on the whole lens, each sub-region forming an independent sub-region electrode; the orientation direction of the front orientation layer (132) is consistent with the polarization transmission axis direction of the front polarizer (112); the orientation direction of the rear orientation layer (134) is consistent with the polarization transmission axis direction of the rear polarizer (113);
a cable is led out from each sub-region electrode and is connected to the liquid crystal control circuit; a cable is led out from the rear electrode layer (135) and is connected to the liquid crystal control circuit;
the liquid crystal control circuit comprises a battery (610), a microcontroller (620), a photoresistor (630), a conventional resistor and a voltage encoder (640) which are connected in series; the output end of the battery (610) is connected with the input end of the microcontroller (620); an ADC conversion interface of the microcontroller (620) is connected with the photoresistor (630) and the conventional resistor; the microcontroller (620) is connected with the voltage encoder (640) through a bus; the voltage encoder (640) is connected to the circuit formed by each of the sub-region electrodes and the back electrode layer (135).
2. The liquid crystal electronic anti-glare polarization goggles according to claim 1, wherein the front protective layer (111) and the rear protective layer (114) employ resin or optical glass.
3. The liquid crystal electronic anti-glare polarization goggles according to claim 1, wherein the front glass sheet (120A) and the rear glass sheet (120B) are cambered surface type having optical power.
4. The liquid crystal electronic anti-glare polarization goggles of claim 1, wherein the area of the sub-region divided by the lens in the central region is smaller than the area of the sub-region divided by the lens in the outer region.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921287352.4U CN210243994U (en) | 2019-08-09 | 2019-08-09 | Liquid crystal electronic anti-dazzle light polarization goggles |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921287352.4U CN210243994U (en) | 2019-08-09 | 2019-08-09 | Liquid crystal electronic anti-dazzle light polarization goggles |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114755850A (en) * | 2021-01-08 | 2022-07-15 | 广东小天才科技有限公司 | Multi-zone PNLC lens adding process, PNLC lens prepared through same and intelligent glasses |
| WO2022165867A1 (en) * | 2021-02-05 | 2022-08-11 | Shenzhen Wicue Optoelectronics Co. LTD. | Dual lens dimmable eyewear |
| WO2022244488A1 (en) * | 2021-05-17 | 2022-11-24 | 充 横田 | Shading control device and solar shading device using same, solar shading system, and shading control program |
-
2019
- 2019-08-09 CN CN201921287352.4U patent/CN210243994U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114755850A (en) * | 2021-01-08 | 2022-07-15 | 广东小天才科技有限公司 | Multi-zone PNLC lens adding process, PNLC lens prepared through same and intelligent glasses |
| WO2022165867A1 (en) * | 2021-02-05 | 2022-08-11 | Shenzhen Wicue Optoelectronics Co. LTD. | Dual lens dimmable eyewear |
| WO2022244488A1 (en) * | 2021-05-17 | 2022-11-24 | 充 横田 | Shading control device and solar shading device using same, solar shading system, and shading control program |
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