Image system and method for adjusting pupil distance of micro head mounted display

Abstract

The present invention is a system and method for adjusting images corresponding to pupil distance of a miniature head mounted display, including a control device capable of inputting pupil distance signals, wherein the input of the pupil distance signals can be manually input or generated by a pupil distance tracker. The control device generates a ratio according to the pupil distance signal and the preset pupil distance information of the image adjustment algorithm, and generates image adjustment information corresponding to the ratio, and the control device then controls the display device according to the image adjustment information to adjust the center distance between two images generated by the display device. The present invention can automatically detect the pupil distance signal of the wearer, or the wearer can input the pupil distance signal by himself, so as to adjust the center distance between the two images corresponding to the pupil distance of the wearer, so as to relieve the discomfort of the wearer when watching virtual images and make the wearer have a more comfortable experience.

Description

Technical Field

[0001] The present invention relates to an electronic digital data processing technology, and in particular to a system and method for adjusting images in accordance with pupil distance of a miniature head mounted display that automatically adjusts image distance in accordance with pupil distance. Background Art

[0002] Virtual reality (VR) refers to a virtual image of a three-dimensional space generated by computer technology. A common way to implement virtual reality is to wear a head-mounted display (HMD) on the wearer's head, so that the two display screens of the head-mounted display device are close to the wearer's eyes. The images generated by the two display screens can overlap and be projected into the wearer's eyes, allowing the wearer to see a virtual image of a three-dimensional space.

[0003] It is worth noting that the distance between the two display screens is very important for whether the images viewed by the wearer can be properly superimposed to produce a three-dimensional image. The distance between the two display screens is related to whether the wearer can view the image comfortably, whether the images are blurred or cannot be overlapped, etc. If the distance between the two display screens does not match the wearer's interpupillary distance (IPD), the images viewed by the wearer cannot be effectively overlapped, resulting in blurred or shaking images, etc. The wearer may experience symptoms such as dizziness or vomiting, causing the wearer to feel uncomfortable.

[0004] However, when general head-mounted display devices are shipped from the factory, the distance between the two display screens is fixed and cannot be adjusted. The manufacturer can only pre-set a person's interpupillary distance (IPD) and adjust the distance between the display screens accordingly. Therefore, when the wearer's interpupillary distance is different from the interpupillary distance set by the manufacturer, the two images may not overlap effectively, resulting in blurred or shaking images, making the wearer feel uncomfortable.

[0005] In view of this, the present invention aims at the above-mentioned deficiencies of the conventional technology and proposes a system and method for adjusting images corresponding to pupil distance of a miniature head mounted display to effectively overcome the above-mentioned problems. Summary of the invention

[0006] The main purpose of the present invention is to provide a system and method for adjusting images corresponding to pupil distance of a miniature head mounted display, which can meet the needs of wearers with different pupil distances by automatically adjusting the center distance between two images, thereby achieving relatively high practical performance.

[0007] Another object of the present invention is to provide a system and method for adjusting images corresponding to the pupil distance of a miniature head mounted display, which can automatically detect the pupil distance of the wearer, or the wearer can input his own pupil distance, so that the system can adjust the center distance of two images corresponding to the pupil distance, so that the two images can effectively overlap together, so as to relieve the uncomfortable feeling of the wearer when watching virtual images, and make the wearer have a more comfortable experience when watching virtual images.

[0008] In order to achieve the above-mentioned purpose, the technical solution provided by the present invention is:

[0009] A system for adjusting an image corresponding to pupil distance of a miniature head mounted display, characterized by comprising:

[0010] a display device, displaying at least two images; and

[0011] A control device is connected to the display device. The control device can receive a pupil distance signal and bring it into an image adjustment algorithm, so that the pupil distance signal generates a ratio according to the preset pupil distance information of the image adjustment algorithm, and generates image adjustment information corresponding to the ratio. The control device then controls the display device according to the image adjustment information to adjust the center distance between the two images.

[0012] The corresponding pupil distance adjustment image system of the miniature head mounted display further includes a pupil distance tracker connected to the control device, and the pupil distance tracker can generate the pupil distance signal.

[0013] The image adjustment system corresponding to the pupil distance of the miniature head mounted display, wherein the image adjustment algorithm is expressed as the following equation:

[0014]

[0015] The x is the pupil distance signal, the y is the preset pupil distance information, and the z is the image adjustment information.

[0016] The corresponding pupil distance adjustment image system of the miniature head mounted display, wherein the front end of the display device is also correspondingly provided with a lens module to project the image of the display device to the human eye.

[0017] The corresponding pupil distance adjustment image system of the miniature head mounted display further includes a shell covering the control device, the display device, the lens module and the pupil distance tracker.

[0018] The corresponding pupil distance adjustment image system of the miniature head-mounted display, wherein the display device is a screen.

[0019] The corresponding pupil distance adjustment image system of the miniature head mounted display, wherein the pupil distance tracker is a photographic device.

[0020] A method for adjusting images corresponding to pupil distance of a miniature head mounted display, characterized in that it comprises the following steps:

[0021] Input a pupil distance signal;

[0022] Bringing the pupil distance signal into an image adjustment algorithm to generate a ratio between the pupil distance signal and preset pupil distance information of the image adjustment algorithm, and generating image adjustment information corresponding to the ratio; and

[0023] The center distance between at least two images is adjusted according to the image adjustment information.

[0024] The method for adjusting images corresponding to pupil distance of the miniature head mounted display, wherein the image adjustment algorithm is expressed as the following equation:

[0025]

[0026] The x is the pupil distance signal, the y is the preset pupil distance information, and the z is the image adjustment information.

[0027] In summary, the present invention can automatically detect the wearer's pupil distance and adjust the center distance of the two images displayed by the display image according to the wearer's pupil distance, so that when the wearer views the image, the image can effectively overlap, so as to relieve the wearer's uncomfortable feeling when viewing the virtual image, so that the wearer has a more comfortable experience when viewing the virtual image. Since the present invention can automatically adjust the center distance of the two images, it can meet the needs of wearers with different pupil distances, and its practicality is relatively improved.

[0028] The following detailed description will provide an easier understanding of the purpose, technical content, features and effects of the present invention with reference to specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a cross-sectional schematic diagram of the present invention.

[0030] Figure 2 It is a front view of the present invention.

[0031] Figure 3 It is a system block diagram of the present invention.

[0032] Figure 4 It is a flow chart of the method of the present invention.

[0033] Figure 5 It is a schematic diagram of the use status of the present invention.

[0034] Explanation of the accompanying reference numerals: 1-corresponding pupil distance adjustment imaging system of a micro head mounted display; 10-housing; 12-control device; 14-display device; 16-lens module; 18-pupil distance tracker; 20-human eye; A-distance; B-image center distance. DETAILED DESCRIPTION

[0035] The present invention can be applied to a miniature head mounted display, and can adjust the center distance of two images according to the pupil distance of the wearer, thereby avoiding the problem of image overlap, so as to relieve the wearer's uncomfortable feeling when watching virtual images, and make the wearer have a more comfortable experience.

[0036] In order to understand the structural design of the present invention, the structural composition of the corresponding pupil distance adjustment imaging system of the miniature head mounted display is described in detail. Figures 1 to 3 As shown in the figure, the corresponding pupil distance adjustment image system 1 of the mini head mounted display includes a housing 10 which sequentially covers and fixes a control device 12, a display device 14, a pupil distance tracker 18 and a lens module 16. The control device 12 is connected to the pupil distance tracker 18 and the display device 14 by signal, and the lens module 16 is arranged between the display device 14 and the human eye 20 corresponding to the display device 14 to receive and change the image of the display device 14 to the human eye 20.

[0037] Please continue to refer to Figures 1 to 3 The pupil distance tracker 18 is a photographic device. The lens 182 of the pupil distance tracker 18 can be set on the second lens module 16 to align with the human eye 20 to capture binocular images. In this embodiment, the pupil distance tracker 18 is a photographic device with a calculation function. The pupil distance tracker 18 captures the human eye and generates an image of the human eye, and generates a pupil distance signal according to the distance between the pupils of the two eyes in the image. The display device 14 is a screen that can provide at least two images.

[0038] The control device 12 is a computer with computing functions. The control device 12 stores an image adjustment algorithm for calculating and adjusting the distance between the two images. The control device 12 can receive a pupil distance signal input by a user, or a pupil distance signal generated by a pupil distance tracker 18. In this embodiment, the pupil distance signal is generated by the pupil distance tracker 18. After receiving the pupil distance signal, the control device 12 brings the pupil distance signal into the image adjustment algorithm. The image adjustment algorithm is expressed as the following equation:

[0039]

[0040] Wherein x is the pupil distance signal, y is the preset pupil distance information, and z is the image adjustment information. The control device 12 generates a ratio according to the preset pupil distance information of the image adjustment algorithm through the image adjustment algorithm, and generates image adjustment information corresponding to the ratio, which can be an actual value, such as 0.1 mm. The control device 12 then controls the display device 14 according to the image adjustment information to adjust the center distance between the two images of the display device 14. The preset pupil distance information can be a value set by the user, and the value can be an average pupil distance value of an average person, such as 53 mm to 73 mm.

[0041] After describing the structure of the corresponding pupil distance adjustment image system 1 of the miniature head mounted display of the present invention, the corresponding pupil distance adjustment image method of the miniature head mounted display used by the corresponding pupil distance adjustment image system 1 of the miniature head mounted display is described next. Figures 1 to 3 , and with reference Figure 4 and Figure 5 , to illustrate the method for adjusting the image corresponding to the pupil distance of the micro head mounted display of the present invention. First enter step S10 and refer to Figure 5 , input a pupil distance signal control device 12, wherein the pupil distance signal can be input manually, or after using the pupil distance tracker 18 to photograph the human eyes, an image of the human eye is generated and generated according to the distance A between the pupils of the two eyes in the image.

[0042] Then, step S12 is entered, the control device 12 receives the pupil distance signal, and brings the pupil distance signal into the image adjustment algorithm, so that the pupil distance signal and the preset pupil distance information of the image adjustment algorithm generate a ratio, and the image adjustment information is generated corresponding to the ratio, wherein the image adjustment algorithm is expressed as the following equation:

[0043]

[0044] Where x is the pupil distance signal, y is the preset pupil distance information, and z is the image adjustment information. Finally, step S14 is entered, and reference is made to Figure 5 After the control device 12 calculates the image adjustment information, it can adjust the image center distance B of the two images of the display device 14 accordingly, so that the image center distance B matches the wearer's pupil distance, which can effectively reduce the wearer's dizziness or image overlap problems when watching virtual images, so that the wearer has a more comfortable experience.

[0045] In summary, the present invention can automatically detect the wearer's pupil distance and adjust the center distance of the two images displayed by the display image according to the wearer's pupil distance, so that when the wearer views the image, the image can effectively overlap, so as to relieve the wearer's uncomfortable feeling when viewing the virtual image, so that the wearer has a more comfortable experience when viewing the virtual image. Since the present invention can automatically adjust the center distance of the two images, it can meet the needs of wearers with different pupil distances, and its practicality is relatively improved.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Therefore, all equivalent changes or modifications made according to the inventive concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A system for adjusting an image corresponding to pupil distance of a miniature head mounted display, characterized in that: include: a display device, displaying at least two images; and a control device connected to the display device, the control device can receive a pupil distance signal and bring it into the image adjustment algorithm, so that the pupil distance signal generates a ratio according to the preset pupil distance information of the image adjustment algorithm, and generates image adjustment information corresponding to the ratio, and the control device controls the display device according to the image adjustment information to adjust the center distance between the two images; The image adjustment algorithm is expressed as the following equation: The x is the pupil distance signal, the y is the preset pupil distance information, and the z is the image adjustment information.

2. The system for adjusting the image according to the pupil distance of the miniature head mounted display according to claim 1, characterized in that: It also includes a pupil distance tracker connected to the control device, and the pupil distance tracker can generate the pupil distance signal.

3. The image adjustment system corresponding to pupil distance of the miniature head mounted display as claimed in claim 2, characterized in that: A lens module is also correspondingly arranged at the front end of the display device to project the image of the display device to human eyes.

4. The image adjustment system corresponding to pupil distance of the miniature head mounted display as claimed in claim 3, characterized in that: It also includes a shell covering the control device, the display device, the lens module and the pupil distance tracker.

5. The image adjustment system corresponding to pupil distance of the miniature head mounted display as claimed in claim 1, characterized in that: The display device is a screen.

6. The image adjustment system corresponding to pupil distance of the miniature head mounted display as claimed in claim 2, characterized in that: The pupil distance tracker is a photographic device.

7. A method for adjusting images corresponding to pupil distance of a miniature head mounted display, characterized in that: The method comprises the following steps: inputting a pupil distance signal; bringing the pupil distance signal into an image adjustment algorithm, so that a ratio is generated between the pupil distance signal and the preset pupil distance information of the image adjustment algorithm, and generating image adjustment information corresponding to the ratio; and adjusting the center distance between at least two images according to the image adjustment information; The image adjustment algorithm is expressed as the following equation: The x is the pupil distance signal, the y is the preset pupil distance information, and the z is the image adjustment information.

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