3D glasses

Abstract

The invention relates to the technical field of 3D display, and discloses a pair of 3D glasses which comprises a glasses frame, a controller, a laser emission source, a photoelectric receiver, an inductor and two liquid lenses. And the controller is arranged on a glasses leg of the glasses frame. The laser emission source is arranged on the nose wing part of the glasses frame, is electrically connected with the controller and is configured to emit laser. The photoelectric receiver is arranged on the nose wing portion of the glasses frame, electrically connected with the controller and configured to receive the laser emitted by the laser emitting source to obtain the distance. The sensor is arranged on the nose wing portion of the glasses frame, electrically connected with the controller and configured to measure the face state. The liquid lens is arranged on the lens frame and electrically connected with the controller, and the controller is configured to change the focal length of the liquid lens according to the distance obtained by the photoelectric receiver and the face state measured by the sensor. According to the 3D glasses provided by the invention, people with myopia can also comfortably see the stereoscopic image effect.

Description

Technical Field

[0001] This application relates to the field of 3D display technology, and particularly to 3D glasses. Background Art

[0002] Generally speaking, zoom glasses in related technologies are divided into two types, namely, jump-zoom glasses and mechanical zoom glasses. Although the jump-zoom glasses have a light structure, their imaging effect is poor and the zoom range is narrow. The mechanical zoom glasses achieve zooming by changing the interval between lens groups. Although they can achieve a large range of zooming, due to the external circuit, the structure of the entire lens group is heavy. In the face of some special life or work scenarios, for the myopic population wearing glasses, when they have to wear a pair of coated glasses or clip-on lenses for different scenarios in addition to their own glasses, the wearing comfort will deteriorate. Summary of the Invention

[0003] Based on this, embodiments of this application provide a 3D glass to improve the wearing comfort.

[0004] According to an embodiment of this application, a 3D glass includes a frame, a controller, a laser emission source, a photoelectric receiver, a sensor, and two liquid lenses. The controller is disposed on the temple of the frame. The laser emission source is disposed on the nose wing portion of the frame, electrically connected to the controller, and configured to emit laser. The photoelectric receiver is disposed on the nose wing portion of the frame, electrically connected to the controller, and configured to receive the laser emitted by the laser emission source to obtain a distance. The sensor is disposed on the nose wing portion of the frame, electrically connected to the controller, and configured to measure the facial state. The liquid lenses are disposed on the frame and electrically connected to the controller. Wherein, the controller is configured to change the focal length of the liquid lenses according to the distance obtained by the photoelectric receiver and the facial state measured by the sensor.

[0005] In an embodiment of this application, the 3D glass further includes a polarization layer. The polarization layer is disposed on the two liquid lenses. Wherein, the polarization layer is a circular polarization layer.

[0006] In an embodiment of this application, each of the two liquid lenses includes a positive electrode layer, a conductive fluid layer, a negative electrode layer, and an insulating fluid layer. The positive electrode layer is electrically connected to the controller. The conductive fluid layer is located on the positive electrode layer. Wherein, the conductive fluid layer is light-transmissive. The negative electrode layer is located on the positive electrode layer and surrounds the conductive fluid layer, and is electrically connected to the controller. The insulating fluid layer is located on the conductive fluid layer and is surrounded by the negative electrode layer. Wherein, the insulating fluid layer is light-transmissive and the insulating fluid layer is immiscible with the conductive fluid layer.

[0007] In an embodiment of this application, the 3D glass further includes a modulator. The modulator is electrically connected to the laser emission source and configured to modulate the laser.

[0008] In an embodiment of the present application, the photoelectric receiver is configured to obtain a time difference and a phase difference after receiving a laser, and obtain a distance based on the time difference and the phase difference.

[0009] In an embodiment of the present application, the facial states measured by the sensor include the blinking frequency, the distance between the eyebrows, and the local temperature of the eyes.

[0010] In an embodiment of the present application, the sensor is configured to comprehensively confirm and feedback the eye state based on the monitored number of blinking frequencies, the degree of change in the distance between the eyebrows, and the change trend of the local temperature of the eyes, etc., and drive the dynamic adjustment of the liquid lens.

[0011] In an embodiment of the present application, the 3D glasses further include a power source. The power source is disposed on the temple of the frame and is electrically connected to the controller.

[0012] In an embodiment of the present application, the 3D glasses further include a control button. The control button is disposed on the temple of the frame, is electrically connected to the controller, and is configured to input the glasses prescription.

[0013] In an embodiment of the present application, the 3D glasses further include a micro display. The micro display is disposed on the other temple of the frame.

[0014] In the above embodiment of the present application, since the 3D glasses have a laser emission source and a photoelectric receiver, the controller can control the liquid lens to perform zooming according to the distance between the human eye and the target in the environment, achieving the effect that people with myopia can also comfortably see the stereoscopic image. In addition, the 3D glasses also have a sensor that can sense the facial state, and can monitor the fatigue degree of the user to determine whether zooming is needed, improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] When read in conjunction with the accompanying drawings, the aspects of the content of the present application can be best understood from the following embodiments. Note that according to the standard practice in this industry, the various features are not drawn to scale. In fact, for the clarity of the discussion, the dimensions of the various features can be arbitrarily increased or decreased.

[0016] Figure 1 Is a perspective view of a 3D glasses according to an embodiment of the present application.

[0017] Figure 2 Is Figure 1 A cross-sectional view of the liquid lens of.

[0018] Figure 3 Is Figure 1 A schematic diagram of the laser emission source and the photoelectric receiver of.

[0019] Figure 4 Is a block diagram of a modulator according to an embodiment of the present application.

[0020] Figure 5 Schematic diagram of the facial state measured by the sensor.

[0021] Description of reference numerals:

[0022] 100: 3D glasses;

[0023] 110: Frame;

[0024] 112: Temple;

[0025] 114: Temple;

[0026] 116: Nasal wing part;

[0027] 120: Controller;

[0028] 122: Control button;

[0029] 130: Laser emission source;

[0030] 140: Photoelectric receiver;

[0031] 150: Sensor;

[0032] 160: Liquid lens;

[0033] 162: Positive electrode layer;

[0034] 164: Conductive fluid layer;

[0035] 166: Negative electrode layer;

[0036] 168: Insulating fluid layer;

[0037] 169: Polarizing layer;

[0038] 170: Power supply;

[0039] 180: Micro display screen;

[0040] 190: Modulator;

[0041] L, L': Laser;

[0042] O: Target object;

[0043] R: Distance between eyebrows. Detailed implementation manners

[0044] The following disclosed embodiments provide many different embodiments, or examples, for implementing different features of the provided objectives. Specific examples of components and arrangements are described below to simplify the present case. Of course, these examples are only examples and are not intended to be limiting. In addition, component symbols and / or letters may be repeated in each instance of the present case. This repetition is for the purpose of simplicity and clarity, and does not itself specify the relationship between the various embodiments and / or configurations discussed.

[0045] Spatial relative terms such as "below", "beneath", "lower", "above", "upper", etc. may be used herein for the purpose of facilitating description to describe the relationship between one component or feature and another component or feature as shown in the drawings. The spatial relative terms are intended to cover different orientations of the device in use or operation in addition to the orientation shown in the drawings. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptive terms used herein may be interpreted accordingly.

[0046] Figure 1 It is a perspective view of a 3D glasses 100 according to an embodiment of the present application. Refer to Figure 1 , the 3D glasses 100 includes a frame 110, a controller 120, a laser emission source 130, a photoelectric receiver 140, a sensor 150, and two liquid lenses 160. The controller 120 is disposed on the temple 114 of the frame 110. The laser emission source 130 is disposed on the nose wing portion 116 of the frame 110, electrically connected to the controller 120, and configured to emit laser light. The photoelectric receiver 140 is disposed on the nose wing portion 116 of the frame 110, electrically connected to the controller 120, and configured to receive the laser light emitted by the laser emission source 130 to obtain a distance (which will be Figure 3 detailed later). The sensor 150 is disposed on the nose wing portion 116 of the frame 110, electrically connected to the controller 120, and configured to measure the facial state. The liquid lens 160 is disposed on the frame 110 and electrically connected to the controller 120, wherein the controller 120 is configured to change the focal length of the liquid lens 160 according to the distance obtained by the photoelectric receiver 140 and the facial state measured by the sensor 150. In some embodiments, the laser emission source 130, the photoelectric receiver 140, and the sensor 150 located on the nose wing portion 116 of the frame 110 may be electrically connected to the controller 120 located on the temple 114 of the frame 110 through wires, but the present application is not limited thereto. In some embodiments, the positions of the laser emission source 130, the photoelectric receiver 140, and the sensor 150 located on the nose wing portion 116 of the frame 110 may be interchanged, and their arrangement does not affect the implementation of the present application.

[0047] Since the 3D glasses 100 are provided with a laser emission source 130 and a photoelectric receiver 140, the controller 120 can control the liquid lens 160 to perform zooming according to the distance between the human eye and the target in the environment, so that even a myopic person can comfortably view a stereoscopic image. In addition, the 3D glasses 100 are further provided with a sensor 150 that can sense the facial state, monitor the fatigue level of the user to determine whether zooming is required, and improve the user experience.

[0048] In some embodiments, the 3D glasses 100 further include a power source 170. The power source 170 is disposed on the temple 114 of the frame 110 and is electrically connected to the controller 120, configured to supply power to the controller 120, the laser emission source 130, the photoelectric receiver 140, and the sensor 150. In some embodiments, the 3D glasses 100 further include a control button 122. The control button 122 is disposed on the temple 114 of the frame 110 and is electrically connected to the controller 120, configured to allow a user to manually input the glasses prescription. When the user enters the automatic focusing mode, the controller 120 automatically adjusts the focal length of the liquid lens 160 according to the distance obtained by the photoelectric receiver 140 and the facial state obtained by the sensor 150. Therefore, a myopic user can directly use the glasses alone without wearing their own myopia glasses additionally. Alternatively, when the user can provide an accurate glasses prescription, the glasses prescription can be input through the control button 122, so that the controller 120 can adjust the focal length of the liquid lens 160 with reference to the glasses prescription. In some embodiments, the 3D glasses 100 further include a micro display 180. The micro display 180 is disposed on the other temple 112 of the frame 110. The micro display 180 is configured to display relevant data such as the remaining battery power of the current glasses and the input glasses prescription.

[0049] Figure 2 is Figure 1 a cross-sectional view of the liquid lens 160. Refer to Figure 2, the liquid lens 160 includes a positive electrode layer 162, a conductive fluid layer 164, a negative electrode layer 166, and an insulating fluid layer 168. The positive electrode layer 162 is electrically connected to the controller 120. The conductive fluid layer 164 is located on the positive electrode layer 162, and the conductive fluid layer 164 is light-transmissive. The negative electrode layer 166 is located on the positive electrode layer 162 and surrounds the conductive fluid layer 164, and is electrically connected to the controller 120. The insulating fluid layer 168 is located on the conductive fluid layer 164 and is surrounded by the negative electrode layer 166. The insulating fluid layer 168 is light-transmissive and the insulating fluid layer 168 is immiscible with the conductive fluid layer 164. The 3D glasses 100 further include a polarization layer 169. The polarization layer 169 is disposed on the two liquid lenses 160, and the polarization layer 169 is a circular polarization layer. After the controller 120 receives the parameters from the photoelectric receiver 140 and the sensor 150, it will determine an output voltage to be applied between the positive electrode layer 162 and the negative electrode layer 166. At this time, the periphery of the conductive fluid layer 164 will be attracted by the negative electrode layer 166 and rise, thereby forming a concave surface with a lower middle and a higher periphery. Therefore, at this time, the insulating fluid layer 168 is equivalent to a convex lens and can play a role in converging light. The amplitude of the shape change of the conductive fluid layer 164 can be determined by the output voltage of the controller 120. In addition, in this embodiment, the outermost layer of the liquid lens 160 also has a polarization layer 169. The polarization layer 169 can be a coating or can be clamped on the 3D glasses 100 in the form of a clip. The main function of the polarization layer 169 is to convert the light about to enter the eyes into circularly polarized light. Such a design can make the color loss felt by the user wearing the 3D glasses 100 smaller and the viewing angle wider.

[0050] Figure 3 is Figure 1 schematic diagram of the laser emission source 130 and the photoelectric receiver 140. Refer to Figure 3 , when the laser emission source 130 emits the laser L towards the target O, the laser L will travel for a period of time, hit the target O and be reflected into another laser L', and the laser L' is then received by the photoelectric receiver 140. Then, the controller 120 will extract the required information from it, that is, the time difference between the emission of the laser L and the reception of the laser L', and the phase difference between the emission of the laser L and the reception of the laser L', and substitute them into the linear regression equation, for example:

[0051] Y = aX + b... Equation 1

[0052] where a and b are constants, X is the input time difference and phase difference, and Y is the output voltage. After the output voltage is determined, the controller 120 will change the liquid lens 160 according to this output voltage (refer to Figure 2)'s focal length to enable the 3D glasses 100 to smoothly zoom at different target distances. In some embodiments, the laser L can be infrared light, but the present application is not limited thereto. In addition, if the user manually inputs the glasses prescription using the control button 122, another mode will be entered. At this time, the controller will not use the input time difference and phase difference X, but the value D converted from the manually input glasses prescription:

[0053] Y = aD + b... Equation 2

[0054] Such a design allows the user to freely switch between the automatic and manual modes, providing a better viewing experience for the user.

[0055] Figure 4 Is a block diagram of the modulator 190 according to an embodiment of the present application. Refer to Figure 4 , in some embodiments, the 3D glasses 100 further include a modulator 190. The modulator 190 is electrically connected to the laser emission source 130 and is configured to modulate the laser L. The modulator 190 can be an amplitude modulator or a phase modulator, or both. Such a design can make the phase of the laser L more accurate and the noise smaller, enabling more precise measurement of the distance to the target object.

[0056] Figure 5 Is a schematic diagram of the facial state measured by the sensor 150. Refer to Figure 1 and Figure 5 . The facial state includes the blink frequency, the distance between the eyebrows R, and the local temperature of the eyes. The sensor 150 can be, for example, a camera lens, with a shooting range of the local face (i.e., near the eyes). The shooting wavelengths can include infrared and visible light, but the present application is not limited thereto. In some embodiments, the sensor 150 takes an image of the area around the eyes at regular intervals, for example, once every ten seconds, but the present application is not limited thereto. In some embodiments, at the start of use, the sensor 150 will perform an eye recognition first as a baseline value. Determining whether a blink occurs can be determined by the eye aspect ratio EAR, for example:

[0057] ... Equation 3

[0058] When it is determined that the EAR is less than a certain value, it is counted as a blink. The distance R between the eyebrows can be directly judged from the endpoint positions of both ends of the eyebrows on the image. An initial value will be recorded during the initial wearing. After that, once frowning occurs, the distance R between the eyebrows will be less than the initial value. The local temperature of the eyes can be observed by infrared rays to measure the temperature around the eyes. When the blink frequency is too low or too high (for example, less than two or more than three times), the distance R between the eyebrows is less than the initial value during the initial wearing and the number of times is more than a certain number (for example, more than two times), or the slope of the temperature change around the eyes suddenly changes and maintains this trend for a period of time (for example, more than ten seconds), it will be regarded by the controller 120 as needing to determine whether there is an abnormality. As long as any two of the above three abnormal conditions are met, the controller 120 will determine whether it is necessary to adjust the focal length of the liquid lens 160 according to the user experience, thereby improving the potential discomfort of the user. Such a design enables the user to obtain a customized experience. When the user feels uncomfortable due to overuse of the eyes, the 3D glasses 100 can also self-correct, increasing the user's comfort level.

[0059] The foregoing has outlined the features of several embodiments, enabling those skilled in the art to better understand various aspects of the present application. Those skilled in the art should understand that they can easily use the present application as a basis for designing or modifying other processes and structures to achieve the same purposes and / or achieve the same advantages as the embodiments described herein. Those skilled in the art should also recognize that such equivalent structures do not depart from the spirit and scope of the present application, and various changes, substitutions, and alterations can be made herein without departing from the spirit and scope of the present application.

Claims

1. A 3D glasses, characterized in that: include: Frames; A controller, arranged on the temples of the frame; A laser emission source, disposed on the nose wing of the frame, electrically connected to the controller, and configured to emit laser; A photoelectric receiver, disposed on the nose wing of the frame, electrically connected to the controller, and configured to receive the laser emitted by the laser emission source to obtain the distance; A sensor, disposed on the nose wing of the frame, electrically connected to the controller, and configured to measure a facial state; as well as Two liquid lenses are disposed on the frame and electrically connected to the controller, wherein the controller is configured to change the focal lengths of the two liquid lenses according to the distance obtained by the photoelectric receiver and the facial state measured by the sensor.

2. The 3D glasses according to claim 1, wherein: The 3D glasses further include: The polarization layer is disposed on the two liquid lenses, wherein the polarization layer is a circular polarization layer.

3. The 3D glasses according to claim 1, wherein: The two liquid lenses each include: A positive electrode layer, electrically connected to the controller; a conductive fluid layer, located on the positive electrode layer, wherein the conductive fluid layer is light-transmissive; a negative electrode layer, located on the positive electrode layer and surrounding the conductive fluid layer, and electrically connected to the controller; and The insulating fluid layer is located on the conductive fluid layer and is surrounded by the negative electrode layer, wherein the insulating fluid layer is light-transmissive and the insulating fluid layer and the conductive fluid layer are mutually insoluble.

4. The 3D glasses according to claim 1, wherein: The 3D glasses further include: The modulator is electrically connected to the laser emission source and configured to modulate the laser.

5. The 3D glasses according to claim 1, wherein: The photoelectric receiver is configured to obtain a time difference and a phase difference after receiving the laser, and obtain the distance according to the time difference and the phase difference.

6. The 3D glasses according to claim 1, wherein: The facial state measured by the sensor includes blinking frequency, eyebrow distance and local eye temperature.

7. The 3D glasses according to claim 6, wherein: The sensor is configured to change the focal length of the two liquid lenses according to two of the blinking frequency, the brow distance and the local eye temperature.

8. The 3D glasses according to claim 1, wherein: The 3D glasses further include: The power source is arranged on the temples of the temple frame and is electrically connected to the controller.

9. The 3D glasses according to claim 1, wherein: The 3D glasses further include: The control button is arranged on the temple of the frame, electrically connected to the controller, and configured to input the prescription of the glasses.

10. The 3D glasses according to claim 1, wherein: The 3D glasses further include: The micro display screen is arranged on the other temple of the mirror frame.

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