Current Optics and Photonics

Optical Society of Korea (한국광학회)
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A New Instrument for Measuring the Optical Properties of Wide-field-of-view Virtual-reality Devices

  • Ahn, Hee Kyung (Optical Imaging and Metrology Team, Advanced Instrumentation Institute, Korea Research Institute of Standards and Science) ;
  • Lim, Hyun Kyoon (Medical Data Precision Measurement Team, Safety Measurement Institute, Korea Research Institute of Standards and Science) ;
  • Kang, Pilseong (Optical Imaging and Metrology Team, Advanced Instrumentation Institute, Korea Research Institute of Standards and Science)
  • Received : 2022.03.16
  • Accepted : 2022.06.14
  • Published : 2022.08.25
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Abstract

Light-measuring devices (LMDs) are frequently used to measure luminance and color coordinates of displays. However, it is very difficult to use a conventional LMD for measuring the optical properties of virtual-reality (VR) devices with a wide field of view (FOV), because of their confined spaces where the entrance pupil of a LMD is located. In this paper, a new LMD that can measure the optical properties of wide-FOV VR devices, without physical conflict with the goggles of the VR device, is proposed. The LMD is designed to fully satisfy the requirements of IEC 63145-20-10, and a pivot-point correction method for the LMD is applied to improve its accuracy. To show the feasibility of the developed LMD and the correction method, seven VR devices with wide FOV are measured with it. From the results, all of them are successfully measured without any physical conflict, and a comparison to their nominal values shows that the FOVs have been properly measured.

Keywords

Acknowledgement

Smart Healthcare VR Infrastructure Construction project (P0001940).

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