Full-automatic anti-dazzling ar glasses based on electrochromic technology

Abstract

The application discloses a full-automatic anti-dazzling AR (Augmented Reality) glasses based on electrochromic technology, and belongs to the technical field of AR glasses.The application aims to solve the problem that the existing AR glasses cannot automatically adjust the light transmittance under different light intensities, and affect the visual experience of users, and provides the full-automatic anti-dazzling AR glasses based on the electrochromic technology.The preparation method comprises the following steps: one, pretreatment;two, preparation of an electrochromic solution;three, assembly of an electrochromic device;and four, assembly of the full-automatic anti-dazzling AR glasses.The application has the advantages of simple operation, low cost, no need of special equipment, and automatic adjustment of the AR glasses transmittance under different light environments without manual operation, so that the best visual experience can be provided for users.

Description

Technical Field

[0001] This invention belongs to the field of AR glasses technology, specifically relating to a method for preparing fully automatic anti-glare AR glasses. Background Technology

[0002] Augmented Reality (AR) technology combines data acquisition, real-time rendering, and user interaction to overlay digital information onto the user's real-world field of vision, merging real-world objects with the virtual world and bringing them together to create a new visual environment. This not only enriches the user's visual experience but also provides a more convenient and efficient way to acquire information. AR glasses developed using this principle are becoming increasingly popular. However, during use, the constantly changing external light environment can affect the visual experience. For example, the comfortable light intensity range for the naked eye is 100–2000 lux. Light intensity greater than 2000 lux (such as outdoors on a sunny day) can cause discomfort. Wearing AR glasses outdoors in strong light can cause discomfort or even dizziness. Furthermore, images may appear blurry, have uneven colors, or exhibit ghosting, affecting the visual experience. Existing AR glasses use films with low transmittance, which effectively protect the field of vision and provide good visual effects in strong outdoor light environments. However, they cannot provide a sufficiently clear and bright field of vision indoors or in low-light environments. Therefore, there is an urgent need for AR glasses that can automatically adjust and switch transmittance under different lighting conditions. Summary of the Invention

[0003] The purpose of this invention is to solve the problem that existing AR glasses cannot automatically adjust the light transmittance under different light intensities, thus affecting the user's visual experience, and to provide a fully automatic anti-glare AR glasses based on electrochromic technology.

[0004] The fully automatic anti-glare AR glasses prepared by this invention add a fully automatic color-changing layer (violet electrochromic device) and a photosensor to the side of the AR glasses body away from the user's face. When light shines on the sensor, the sensor receives the light and detects it in real time. When the detected illuminance is greater than 2000 lux, the sensor converts the light energy into an electrical signal. The control module receives the electrical signal and controls the power supply to apply a corresponding coloring voltage to the electrochromic device, driving the electrochromic device to work and reduce the transmittance of the AR glasses, thus achieving the purpose of fully automatic anti-glare. When the detected illuminance is less than 2000 lux, the color of the automatic color-changing layer fades and remains transparent, providing the user with a clear field of vision.

[0005] A fully automatic anti-glare AR glasses based on electrochromic technology includes: an AR glasses body, an electrochromic device, a photosensor, a power supply, and a control module; the electrochromic device and the photosensor are disposed on the side of the AR glasses body away from the user's face; the control module and the power supply are disposed inside the temples of the AR glasses body.

[0006] A method for manufacturing fully automatic anti-glare AR glasses based on electrochromic technology is completed according to the following steps:

[0007] I. Preprocessing:

[0008] The ITO transparent conductive glass is cleaned to obtain clean ITO transparent conductive glass;

[0009] II. Preparation of Electrochromic Solution:

[0010] Electrochromic material and electrolyte salt are dissolved in a solvent and stirred for a period of time to obtain an electrochromic solution;

[0011] The electrochromic material mentioned in step two is a mixture of viologen compound and ion storage material;

[0012] III. Assembling electrochromic devices:

[0013] Place a clean piece of ITO transparent conductive glass with the conductive side facing up. Use a dispensing machine to apply a ring of UV-curable adhesive to the conductive ITO, leaving a crystal filling port. Then, bond another clean piece of ITO transparent conductive glass with the conductive side facing down to it to obtain an electrochromic material box. Vacuum the electrochromic material box, then fill it with an electrochromic solution. Finally, seal the crystal filling port with UV-curable adhesive to obtain an electrochromic device.

[0014] IV. Assemble fully automatic anti-glare AR glasses:

[0015] An electrochromic device is composited onto the outer layer of the AR glasses body, and a photosensor is composited onto the outer layer of the electrochromic device. Copper wires are used to connect the photosensor, power supply, control module and electrochromic device, and the connection is soldered. The AR glasses body and the electrochromic device, photosensor, power supply and control module are connected by UV-curing adhesive to obtain fully automatic anti-glare AR glasses.

[0016] The photosensitive sensor mentioned in step four of this invention is called a 4-pin photoresistor sensor module, which was purchased from the Telesky flagship store. It is a sensitive photoresistor sensor and is equipped with an adjustable potentiometer to adjust the intensity of the detected light.

[0017] The beneficial effects of this invention are:

[0018] This invention provides a fully automatic anti-glare AR glasses. A viologen electrochromic device and a photosensor are assembled on the side of the AR glasses body facing away from the user's face. When light shines on the sensor, the sensor receives and detects the light in real time. When the detected illuminance exceeds 2000 lux, the sensor converts the light energy into an electrical signal. The control module receives this electrical signal and controls the power supply to apply a coloring voltage to the electrochromic device, driving it to operate. The viologen compound undergoes a reduction reaction in the electrolyte. The divalent bipyridine cation gains an electron and is reduced to a monovalent free radical. This free radical has a non-delocalized positive charge, resulting in strong photoelectric transfer between molecules. The molar absorptivity of viologen in this state is greatly increased, and the material is in a colored state, thus significantly reducing the light modulation amplitude of the device in a short time. This method is simple to operate, low in cost, requires no special equipment, and requires no manual operation to automatically adjust the transmittance of the AR glasses under different lighting conditions, providing users with the best visual experience. Attached Figure Description

[0019] Figure 1 A flowchart illustrating the workflow of the fully automatic anti-glare AR glasses prepared according to this invention;

[0020] Figure 2 The image shows the color change of the electrochromic device prepared in step three of Example 1.

[0021] Figure 3 The image shows the ultraviolet-visible spectrum of the electrochromic device prepared in step three of Example 1.

[0022] Figure 4 The image shows the color-changing and fading time of the electrochromic device prepared in step three of Example 1 at 600 nm. Detailed Implementation

[0023] To more clearly illustrate the present invention, the following description, in conjunction with preferred embodiments, further clarifies the invention. Those skilled in the art should understand that the specific descriptions below are illustrative rather than restrictive, and should not be construed as limiting the scope of protection of the present invention.

[0024] Specific Implementation Method 1: This implementation method provides a fully automatic anti-glare AR glasses based on electrochromic technology, comprising: an AR glasses body, an electrochromic device, a photosensor, a power supply, and a control module; the electrochromic device and the photosensor are disposed on the side of the AR glasses body facing away from the user's face; the control module and the power supply are disposed inside the temples of the AR glasses body.

[0025] A method for manufacturing fully automatic anti-glare AR glasses based on electrochromic technology is completed according to the following steps:

[0026] I. Preprocessing:

[0027] The ITO transparent conductive glass is cleaned to obtain clean ITO transparent conductive glass;

[0028] II. Preparation of Electrochromic Solution:

[0029] Electrochromic material and electrolyte salt are dissolved in a solvent and stirred for a period of time to obtain an electrochromic solution;

[0030] The electrochromic material mentioned in step two is a mixture of viologen compound and ion storage material;

[0031] III. Assembling electrochromic devices:

[0032] Place a clean piece of ITO transparent conductive glass with the conductive side facing up. Use a dispensing machine to apply a ring of UV-curable adhesive to the conductive ITO, leaving a crystal filling port. Place another clean piece of ITO transparent conductive glass with the conductive side facing down and bond it to the ITO to obtain an electrochromic material box. Vacuum the electrochromic material box, then fill the vacuum-sealed electrochromic material box with an electrochromic solution. Finally, seal the crystal filling port with UV-curable adhesive to obtain an electrochromic device.

[0033] IV. Assemble fully automatic anti-glare AR glasses:

[0034] An electrochromic device is composited onto the outer layer of the AR glasses body, and a photosensor is composited onto the outer layer of the electrochromic device. Copper wires are used to connect the photosensor, power supply, control module and electrochromic device, and the connection is soldered. The AR glasses body and the electrochromic device, photosensor, power supply and control module are connected by UV-curing adhesive to obtain fully automatic anti-glare AR glasses.

[0035] The UV-curing adhesive mentioned in steps three and four of this embodiment is branded as Zhuolide, model number D-6212, and named UV-curing adhesive.

[0036] The photosensitive sensor mentioned in step four of this embodiment is a 4-pin photoresistor sensor module, purchased from the Telesky flagship store. It is a sensitive photoresistor sensor with an adjustable potentiometer to adjust the intensity of the detected light.

[0037] Specific Implementation Method Two: This implementation method differs from Specific Implementation Method One in that the cleaning of the ITO transparent conductive glass in step one is performed as follows: The ITO transparent conductive glass is ultrasonically cleaned sequentially using detergent, deionized water, acetone, and anhydrous ethanol, with each ultrasonic cleaning lasting 10 to 30 minutes. It is then dried with nitrogen gas to obtain clean ITO transparent conductive glass. Other steps are the same as in Specific Implementation Method One.

[0038] Specific Implementation Method Three: This implementation method differs from Specific Implementation Method One or Two in that the viologen compound mentioned in step two is methyl viologen, ethyl viologen dibromide, 1,1'-di-n-octyl-4,4'-bidibromide pyridine, or 1,1'-dibenzyl-4,4'-bipyridine dichloride. The other steps are the same as in Specific Implementation Method One or Two.

[0039] Specific Implementation Method Four: This implementation method differs from Specific Implementation Methods One to Three in that the ion storage material mentioned in step two is one or a mixture of several of 5,10-dihydro-5,10-dimethylphenazine, ferrocene, potassium ferrocyanide, and N,N,N',N'-tetramethyl-p-phenylenediamine. The other steps are the same as in Specific Implementation Methods One to Three.

[0040] Specific Implementation Method Five: This implementation method differs from Specific Implementation Methods One to Four in that the mass ratio of viologen compound and ion storage material in step two is (1-5):1. The other steps are the same as in Specific Implementation Methods One to Four.

[0041] Specific Implementation Method Six: This implementation method differs from Specific Implementation Methods One to Five in that the solvent mentioned in step two is one or a mixture of several of the following: propylene carbonate, ethylene carbonate, ethylene glycol, water, dimethyl sulfoxide, N,N-dimethylformamide, and N-methylpyrrolidone. The other steps are the same as in Specific Implementation Methods One to Five.

[0042] Specific Implementation Method Seven: This implementation method differs from Specific Implementation Methods One to Six in that the electrolyte salt mentioned in step two is one or more of lithium perchlorate, lithium bromide, lithium hexafluorophosphate, lithium tetrafluoroborate, tetrabutylammonium hexafluorophosphate, and tetrabutylammonium tetrafluoroborate. The other steps are the same as in Specific Implementation Methods One to Six.

[0043] Specific Implementation Method Eight: This implementation method differs from Specific Implementation Methods One to Seven in that: the stirring time in step two is 10 min to 30 min; the concentration of the electrochromic material in the electrochromic solution in step two is 0.1 mmol / L to 100 mmol / L, and the concentration of the electrolyte salt is 0.1 mmol / L to 100 mmol / L. Other steps are the same as in Specific Implementation Methods One to Seven.

[0044] Specific Implementation Method Nine: This implementation method differs from Specific Implementation Methods One to Eight in that: the electrochromic device described in step three is in a transparent state when no voltage is applied, and in a colored state when voltage is applied; it can achieve reversible switching between the two different optical states of transparency and coloration. The other steps are the same as in Specific Implementation Methods One to Eight.

[0045] Specific Implementation Method Ten: This implementation method differs from Specific Implementation Methods One to Nine in that the control module described in step four stores the voltage and time data required for the device to change color, which is used to control the power supply to apply voltage to the electrochromic device. The other steps are the same as in Specific Implementation Methods One to Nine.

[0046] The beneficial effects of the present invention are verified using the following embodiments:

[0047] Example 1: A method for preparing fully automatic anti-glare AR glasses, specifically completed according to the following steps:

[0048] I. Preprocessing:

[0049] The ITO transparent conductive glass is cleaned to obtain clean ITO transparent conductive glass;

[0050] The cleaning of ITO transparent conductive glass in step one is completed in the following steps: the ITO transparent conductive glass is ultrasonically cleaned in sequence with detergent, deionized water, acetone and anhydrous ethanol, each ultrasonic cleaning time is 20 minutes, and then it is dried with nitrogen to obtain clean ITO transparent conductive glass.

[0051] II. Preparation of Electrochromic Solution:

[0052] Electrochromic material and electrolyte salt are dissolved in solvent and stirred for 30 min to obtain electrochromic solution;

[0053] The electrochromic material mentioned in step two is a mixture of 1,1'-di-n-octyl-4,4'-bidibromide pyridine (common name: octyl violet) and ferrocene;

[0054] The solvent mentioned in step two is propylene carbonate;

[0055] The electrolyte salt mentioned in step two is lithium perchlorate;

[0056] In step two, the electrochromic solution contains 18 mmol / L of 1,1'-di-n-octyl-4,4'-bi-dibromide pyridine (common name: octyl viologen), 15 mmol / L of ferrocene, and 50 mmol / L of lithium perchlorate.

[0057] III. Assembling electrochromic devices:

[0058] Place a clean piece of ITO transparent conductive glass with the conductive side facing up. Use a dispensing machine to apply a ring of UV-curable adhesive to the conductive ITO, leaving a crystal filling port. Then, bond another clean piece of ITO transparent conductive glass with the conductive side facing down to it to obtain an electrochromic material box. Vacuum the electrochromic material box, then fill it with an electrochromic solution. Finally, seal the crystal filling port with UV-curable adhesive to obtain an electrochromic device.

[0059] The electrochromic device described in step three is in a transparent state when no voltage is applied, and in a colored state when a voltage is applied; it can achieve reversible switching between the two different optical states of transparency and coloration.

[0060] IV. Assemble fully automatic anti-glare AR glasses:

[0061] An electrochromic device is composited onto the outer layer of the AR glasses body, and a photosensor is composited onto the outer layer of the electrochromic device. Copper wires are used to connect the photosensor, power supply, control module and electrochromic device, and the connection is soldered. The AR glasses body and the electrochromic device, photosensor, power supply and control module are connected by UV-curing adhesive to obtain fully automatic anti-glare AR glasses.

[0062] The UV-curing adhesive mentioned in steps three and four of Example 1 is branded as Zhuolide, model number D-6212, and named UV-curing adhesive.

[0063] The photosensitive sensor mentioned in step four of Example 1 is a 4-pin photoresistor sensor module, purchased from the Telesky flagship store. It is a sensitive photoresistor sensor with an adjustable potentiometer to adjust the intensity of the detected light.

[0064] The control module mentioned in step four of Example 1 is the control module disclosed in application number 202411343487.3, entitled "A color-changing device and its temperature-adaptive color-changing control method".

[0065] The electrochromic device prepared in step three of Example 1 was subjected to performance testing after being energized, and the results are as follows: Figure 2 As shown;

[0066] Figure 2 The image shows the color change of the electrochromic device prepared in step three of Example 1.

[0067] After assembling the electrochromic device (violet electrochromic device) prepared in step three of Example 1 onto AR glasses, when the photosensor receives ambient light below 2000 lux, the electrochromic device does not operate and is in a power-off state, exhibiting a colorless and transparent state, providing the user with a clear and good field of vision. However, when the photosensor receives light with an illuminance above 2000 lux, the photosensor converts the light signal into an electrical signal, and the control module controls the power supply to output a 1.3V DC voltage. Under the 1.3V power-on condition, the violet electrochromic device undergoes a redox reaction, and the violet exhibits a deep blue coloration, with a rapid decrease in transmittance and a reduction in light intensity.

[0068] The electrochromic device prepared by this invention has a low operating voltage and good electrochromic performance.

[0069] The transmittance and response time of the electrochromic device were recorded using a CHI660 electrochemical workstation and a fiber optic spectrometer (Maya 2000-Pro, Ocean Optics). The results are as follows: Figure 3 and Figure 4 As shown;

[0070] Figure 3 The image shows the ultraviolet-visible spectrum of the electrochromic device prepared in step three of Example 1.

[0071] Figure 4 The image shows the color-changing and fading time of the electrochromic device prepared in step three of Example 1 at 600 nm.

[0072] from Figure 3 It can be seen that the electrochromic device prepared using octyl viologen has a transmittance of 78% at 600nm, a colored state transmittance of 6.7%, and an optical modulation amplitude as high as 71.3%.

[0073] from Figure 4 It can be seen that the device only takes 6.8 seconds to color and only 5.6 seconds to fade, showing a rapid response.

[0074] Example 2: The difference between this example and Example 1 is that the electrochromic material in step two is a mixture of ethyl viologen and ferrocene; the concentration of ethyl viologen in the electrochromic solution in step two is 18 mmol / L, the concentration of ferrocene is 15 mmol / L, and the concentration of lithium perchlorate is 50 mmol / L. All other steps and parameters are the same as in Example 1.

[0075] The electrochromic device prepared in Example 2 was subjected to performance testing, and the test results are as follows:

[0076] The electrochromic device prepared in Example 2 had a fading voltage of 0V, a coloring voltage of 1.3V, a transmittance of 78.2% in the transparent state and 8.9% in the colored state at 600nm, and an optical modulation amplitude of 69.3%. The coloring time was 6.4s and the fading time was 4.7s.

[0077] After voltage-induced coloration, ethyl viologen exhibits a deep blue-violet color due to the ability of photocharge to transfer throughout the bipyridine plane of the free radical cationic viologen. Furthermore, the short alkyl chain and low electron transfer rate of ethyl viologen result in a rapid response time.

[0078] Example 3: The difference between this example and Example 1 is that the electrochromic material in step two is a mixture of 1,1'-dibenzyl-4,4'-bipyridine dichloride (common name: benzyl viologen) and ferrocene; the concentration of 1,1'-dibenzyl-4,4'-bipyridine dichloride in the electrochromic solution in step two is 18 mmol / L, the concentration of ferrocene is 15 mmol / L, and the concentration of lithium perchlorate is 50 mmol / L. All other steps and parameters are the same as in Example 1.

[0079] The electrochromic device prepared in Example 3 was subjected to performance testing, and the test results are as follows:

[0080] The electrochromic device prepared in Example 3 had a fading voltage of 0V, a coloring voltage of 1.1V, a transmittance of 78.1% in the transparent state and 22.5% in the colored state at 600nm, and an optical modulation amplitude of 55.6%. The coloring time was 7.3s and the fading time was 6.5s.

[0081] Benzyl viologen exhibits higher transmittance in its colored state, but its color change is less pronounced than that of ethyl viologen and octyl viologen. This is due to the strong cationic-π superposition force of the viologen cation and the electrostatic attraction of the phenyl group, which reduces the ability of photocharge to transfer across nitrogen atoms in the 0 and +1 valence states, resulting in a lower molar absorptivity and a less deep colored state. The longer response time is attributed to the side-to-side interactions between aromatic rings. Under the electrostatic attraction of the CH···π ring bond, the phenyl group tends to form side-to-side complexes, while face-to-face arrangement causes electrostatic repulsion.

[0082] Example 4: The difference between this example and Example 1 is that the concentration of 1,1'-di-n-octyl-4,4'-bididibromide pyridine (common name: octyl viologen) in the electrochromic solution described in step two is 33 mmol / L, the concentration of ferrocene is 18 mmol / L, and the concentration of lithium perchlorate is 50 mmol / L. All other steps and parameters are the same as in Example 1.

[0083] The electrochromic device prepared in this embodiment was subjected to performance testing, and the test results are as follows:

[0084] The electrochromic device prepared in Example 4 had a fading voltage of 0V, a coloring voltage of 1.2V, a transmittance of 75.5% in the transparent state and 1.9% in the colored state at 600nm, and an optical modulation amplitude of 73.6%. The coloring time was 3.8s, and the fading time was 7.8s. This example, compared to Example 1, changed the ratio of octyl viologen to ferrocene. It was found that increasing the ratio of octyl viologen and ferrocene resulted in a decrease in initial transmittance. This is because the viologen solution initially appears orange-yellow, and the more octyl viologen and ferrocene present, the deeper the color. The deeper blue color in the colored state is due to more octyl viologen undergoing electron color change.

Claims

1. A method for preparing fully automatic anti-glare AR glasses based on electrochromic technology, characterized in that... The fully automatic anti-glare AR glasses include: an AR glasses body, an electrochromic device, a photosensor, a power supply, and a control module; the electrochromic device and the photosensor are disposed on the side of the AR glasses body facing away from the user's face; the control module and the power supply are disposed inside the temples of the AR glasses body; the manufacturing method of the fully automatic anti-glare AR glasses is completed according to the following steps: I. Preprocessing: The ITO transparent conductive glass is cleaned to obtain clean ITO transparent conductive glass; II. Preparation of Electrochromic Solution: Electrochromic material and electrolyte salt are dissolved in a solvent and stirred for a period of time to obtain an electrochromic solution; The electrochromic material mentioned in step two is a mixture of viologen compound and ion storage material; The viologen compound mentioned in step two is methyl viologen, ethyl viologen dibromide, 1,1'-di-n-octyl-4,4'-bidibromide pyridine monoxide, or 1,1'-dibenzyl-4,4'-bipyridine dichloride; The ion storage material mentioned in step two is one or a mixture of several of the following: 5,10-dihydro-5,10-dimethylphenazine, ferrocene, potassium ferrocyanide, and N,N,N',N'-tetramethyl-p-phenylenediamine. The mass ratio of viologen compound to ion storage material mentioned in step two is (1~5):1; III. Assembling electrochromic devices: Place a clean piece of ITO transparent conductive glass with the conductive side facing up. Use a dispensing machine to apply a ring of UV-curable adhesive to the conductive ITO, leaving a crystal filling port. Then, bond another clean piece of ITO transparent conductive glass with the conductive side facing down to it to obtain an electrochromic material box. Vacuum the electrochromic material box, then fill it with an electrochromic solution. Finally, seal the crystal filling port with UV-curable adhesive to obtain an electrochromic device. The electrochromic device described in step three is in a transparent state when no voltage is applied, and in a colored state when a voltage is applied; it can achieve reversible switching between the two different optical states of transparency and coloration. IV. Assemble fully automatic anti-glare AR glasses: An electrochromic device is composited onto the outer layer of the AR glasses body, and a photosensor is composited onto the outer layer of the electrochromic device. Copper wires are used to connect the photosensor, power supply, control module and electrochromic device, and the connection is soldered. The AR glasses body and the electrochromic device, photosensor, power supply and control module are connected by UV-curing adhesive to obtain fully automatic anti-glare AR glasses based on electrochromic technology. The control module described in step four stores the voltage and time data required for the device to change color, and is used to control the power supply to apply voltage to the electrochromic device.

2. The method for preparing fully automatic anti-glare AR glasses based on electrochromic technology according to claim 1, characterized in that... The cleaning of ITO transparent conductive glass in step one is carried out in the following steps: the ITO transparent conductive glass is ultrasonically cleaned in sequence with detergent, deionized water, acetone and anhydrous ethanol, and each ultrasonic cleaning time is 10 min to 30 min. Then it is dried with nitrogen to obtain clean ITO transparent conductive glass.

3. The method for preparing fully automatic anti-glare AR glasses based on electrochromic technology according to claim 1, characterized in that... The solvent mentioned in step two is one or a mixture of several of the following: propylene carbonate, ethylene carbonate, ethylene glycol, water, dimethyl sulfoxide, N,N-dimethylformamide, and N-methylpyrrolidone.

4. The method for preparing fully automatic anti-glare AR glasses based on electrochromic technology according to claim 1, characterized in that... The electrolyte salt mentioned in step two is one or more of lithium perchlorate, lithium bromide, lithium hexafluorophosphate, lithium tetrafluoroborate, tetrabutylammonium hexafluorophosphate, and tetrabutylammonium tetrafluoroborate.

5. The method for preparing fully automatic anti-glare AR glasses based on electrochromic technology according to claim 1, characterized in that... The stirring time in step two is 10 min to 30 min; the concentration of the electrochromic material in the electrochromic solution in step two is 0.1 mmol / L to 100 mmol / L, and the concentration of the electrolyte salt is 0.1 mmol / L to 100 mmol / L.

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