AR/VR Evaluation Example 1. Panel Evaluation for Integration into AR/VR/MR Devices 1- 1.Evaluation of luminance, Chromaticity, and Uniformity for RGBW 2- 1.Nine point average value of Luminance(L),chromaticity(u', v’) 2-2.Luminance non-uniformity (NU), Chromaticity non-uniformity ((Au'v')max),Contrast ratio (CR) 2-3.Contrast Modulation Transfer Function (CM/MTF) 4. Evaluation of AR/VR using Laser Light

The market for wearable devices, including AR (Augmented Reality), VR (Virtual Reality), and MR (Mixed Reality), is rapidly growing. AR technology overlays digital information onto the real world and VR technology allows users to experience virtual worlds. MR combines virtual and real-world elements by overlaying virtual objects onto the real world up to the device. As the wearable device market continues to expand, it becomes increasingly important to assess the optical properties of HMD(Head Mounted Displays) and AR glasses. Usually, evaluations of flat panel display measures such as luminance,...

In addition to evaluating displays, it can also assess the luminance, chromaticity, and uniformity of backlight modules. It can also evaluate the spectral transmittance of goggle lenses and other optical components. To calculate the spectral transmittance of goggle lenses, divide the spectral radiance transmitted through the lens by the spectral radiance of the light source (Fig. 3). During measurement, it is important to maintain a consistent distance between the light source and the spectroradiometer. Additionally, using the 2D spectroradiometer SR-5100 enables the display of spectral transmittance...

Fig.7 The four AR/VR display devices. 2D spectroradiometer SR-5100HM micro lens type can be attached additional wide-angle lens that match the field of view each AR/VR device. We measured 2 type of AR/VR devices (Fig7). And (Fig8) indicate gray scale of luminance image of measurement results of SR-5100HM with additional lens. IN addition, Spectroscopic measurement allow to display spectral distribution for the nine measurement points of each AR/VR devices (Fig9). NU, Au' v' and CR are calculated as follows: (Ymax - Yave) Fig.9 Spectral distribution for the nine points ■ 2-3.Contrast Modulation...

AR glasses (Fig.12) display images in the user's field of view. To measure parameters such as luminance, instruments with national traceability are necessary. The 2D spectroradiometer SR-5100HM, equipped with national traceability, can measure AR glasses when fitted with a C-mount lens. Using the 2D spectroradiometer SR-5100for spectral measurements enables precise Fig.l 2 Example image of AR grasses measurement of each spot. An example is provided in which white is displayed on AR glasses, and measurements are taken at five points (Fig.l 3). The average values of parameters such as luminance...

4. Evaluation of AR/VR using Laser Light Backlight for current LCD using white LED cannot express wide color range. To expand the color range, laser light and OLED are increasingly being used. As a Spectral Peak shift result, the development of devices that utilize lasers as light sources for AR/VR is underway. This has led to changing requirements for measurement Sample-B Sample-C instruments. Due to the narrowband spectral characteristics of lasers and OLED panels, it is difficult to accurately measure them with existing color luminance meters that use XYZ detectors. XYZ detectors have spectral...

Example of SR-5100HM + C-mount adapter + Wide lens WxHxDiagonalO Occasionally, there may be deviations. ■ Uniformity (Movement is necessary) Luminance & Chromaticity Uniformity Analyzer Example image of illumination inspection for module manufacturing equipment

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