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Testing method and testing device for near-to-eye display equipment and storage medium

A near-eye display and testing method technology, which is applied in the direction of testing optical properties, etc., can solve the problems of inaccurate measurement results and prolonged measurement time, and achieve the effects of accurate measurement values, reduced brightness deviation, and improved test efficiency

Pending Publication Date: 2021-08-13
苏州市计量测试研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to multiple acquisition of measurement pictures, the measurement time will be longer. In addition, due to the rotation of the angle, there will be a systematic error caused by the angle change when using the brightness method to judge the boundary of the display area, which will make the measurement result inaccurate.

Method used

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  • Testing method and testing device for near-to-eye display equipment and storage medium
  • Testing method and testing device for near-to-eye display equipment and storage medium
  • Testing method and testing device for near-to-eye display equipment and storage medium

Examples

Experimental program
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Effect test

Embodiment 1

[0060] The test method of the field of view test in the prior art is to simulate eyeball rotation through the imaging device, that is, to move the position and angle of the imaging lens, and capture images multiple times to simulate the imaging of the eyeball. Due to the need to obtain measurement pictures multiple times, in practical applications, the field of view testing device based on the above testing method is costly, complicated to operate, and time-consuming.

[0061] Therefore, the present invention provides a method for testing the field of view of a near-eye display device. The test method realizes rapid detection of the field of view of a near-eye display device by acquiring a complete test picture at one time, greatly shortens the measurement time, and improves test efficiency.

[0062] A method for testing the field of view of a near-eye display device provided by the present invention, specifically, refer to figure 1 , including the following steps:

[0063] S...

Embodiment 2

[0085] In order to more intuitively describe the test points of the above-mentioned test method for the field of view of a near-eye display device, this embodiment combines figure 2 A schematic diagram of an imaging and field of view testing system is shown, specifically:

[0086] combine figure 2 with image 3 ,first, figure 2 Shown is a schematic diagram of the imaging and field of view testing system of an embodiment, including the NED display screen 2 of the near-eye display device under test, the NED optical lens 3 of the near-eye display device under test, the detection lens 6 and the detection camera 7. In the phase acquisition module, the entrance pupil field of view of the detection lens must at least cover the field of view of the near-eye display device under test, and the entrance pupil of the phase acquisition module is set at the entrance pupil of the detection lens.

[0087] In this example, after the NED display screen 2 passes through the NED optical len...

Embodiment 3

[0120] In order to better implement the method for testing the field of view of a near-eye display device provided in Embodiment 1 or 2 above, this embodiment further provides a test device 10 for detecting the field of view of a near-eye display device, such as Figure 5 As shown, it includes: a positioning module 11 , an imaging module 12 , a verification and calibration module 13 , an image processing module 14 and a main control module 15 .

[0121] The positioning module 11 is configured to adjust the position of the near-eye display device to form a detection optical path and adjust the alignment of the entrance pupil plane of the phase acquisition unit with the exit pupil plane of the near-eye display optical system.

[0122] It should be noted that in order to align the entrance pupil plane of the phase capture module with the exit pupil plane of the near-eye display optical device, the positioning module 11 needs to be adjusted in position and angle, wherein the positi...

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Abstract

The invention discloses a testing method and device for near-to-eye display equipment and a storage medium. The method comprises the steps of adjusting the entrance pupil plane of an image capturing module to be aligned with the exit pupil plane of a near-to-eye display optical system after the entrance pupil plane of the image capturing module is located in the eye box region of the near-to-eye display equipment to form a detection light path, acquiring a picture with a complete test image as a test picture, acquiring a corresponding relation between the test picture and imaging parameters of the test image, acquiring pixel coordinate parameters of pixels meeting a limit value on an image boundary on the test picture based on a preset pixel brightness parameter limit value of the test picture, and calculating and outputting a measurement result of the field of view of the near-to-eye display equipment. According to the testing method provided by the invention, the test efficiency is improved by acquiring the complete test picture, detecting the view field boundary and calculating and outputting the view field degree. The testing device provided by the invention only needs least equipment and system settings, and the test platform is easy to build.

Description

technical field [0001] The invention relates to the field of near-eye display optical systems, in particular to a test method and a test device for the field of view of an optical display screen for near-eye display. Background technique [0002] A near-eye display device (NED, Near-Eye Display) refers to a display device that creates a virtual image within the field of view of one or both eyes. At present, this technology is widely used in virtual / augmented reality display (VR / AR) products, and its application development momentum is very rapid. Among them, the field of view (FOV, Field of View) is a very important performance index: the improvement of the field of view can better display the picture and directly affect people's visual experience; it can also provide a better immersive experience and increase the sense of reality . [0003] Since the near-eye display device forms a virtual image with a larger field of view, the test method of the field of view test in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/02
CPCG01M11/02
Inventor 江铖黎俊
Owner 苏州市计量测试研究所
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