Binocular testing device

Abstract

The invention discloses a binocular testing device, and the device comprises a first image capturing module and a second image capturing module; any one of the first image capturing module and the second image capturing module comprises an imaging device and an image sensor; the imaging device comprises a first reflection device and an imaging lens, and the first reflection device is configured to reflect and guide light emitted by a display screen of the near-to-eye display equipment to a second light path from a first light path; the optical axis of the first light path is aligned with the view field center of a display screen of the near-to-eye display equipment; the imaging lens and the image sensor are arranged along a second light path, and the imaging lens is configured to focus light emitted by a display screen of the near-to-eye display equipment and then image the light on the image sensor. The direction of the second light path is controlled by adjusting the included angle between the first reflecting device and the first light path so as to adjust the distance between the two second light paths corresponding to the first image capturing module and the second image capturing module. The quality of the left eye and the right eye of the display equipment can be simultaneously monitored, the detection TT is shortened by half, and the production cost is greatly reduced.

Description

technical field [0001] The present application relates to the technical field of near-eye display, and more specifically, to a binocular testing device. Background technique [0002] Near-eye display devices are a new and very popular display technology, and the domestic market size is expected to exceed US$130.14 million in 2025. At present, display manufacturers at home and abroad are competing to develop and launch AR / VR products. However, because the technical realization of near-eye display devices is different from that of conventional displays, there are still many technical problems to be overcome in order to achieve mass production. This process requires display screens. Cooperate with quality control technology. The mainstream near-eye display device quality monitoring product on the market is an imaging colorimeter, that is, a camera + lens structure, which obtains the chromaticity and brightness distribution and imaging effect of a single lens of a near-eye disp...

AI Technical Summary

Problems solved by technology

[0004] At present, the quality monitoring products used for near-eye display devices usually measure the left eye and right eye of the device separately. Simultaneous measurement of the left and right eyes cannot ensure that the measurement environment of both eyes is consistent, and the influence of differences in the data collection environment on the binocular measurement results cannot be ruled out. It is easy to cause errors in the measurement results of near-eye display devices

In addition, measuring the left eye and right eye separately means measuring a product twice, resulting in a long product monitoring TT and high production costs; Two calibrations are required for eye separation measurement, and the additional calibration time will undoubtedly prolong the monitoring TT of the product

[0005] However, if two imaging colorimeters are used to measure the left and right eyes of the device at the same time, due to the large field of view of the near-eye display device, in order to obtain images of the complete field of view of the left and right eye displays, a larger field of view is required. Usually, the larger the field of view, the larger the radial size of the lens. However, due to the limited binocular distance of near-eye display devices, the following situations may occur: First, two sets of large-size lenses cannot be placed at the same time to achieve Simultaneous binocular measurement; second, even if the binocular distance of the near-eye display device allows two sets of lenses to be placed at the same time, the radial width of the camera body is generally larger than the width of the lens, so the camera body connected to the lens may not be placed at the same time; the third is The two sets of lenses and the camera body are barely placed, but the lenses cannot be strictly aligned with the left and right eye displays on the near-eye display device, resulting in errors in the test results

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