Optical element detection method, device, electronic equipment and storage medium

Optical element detection method, device, electronic equipment and storage medium

  • CN 108,600,740 A
  • Filed: 04/28/2018
  • Published: 09/28/2018
  • Est. Priority Date: 04/28/2018
  • Status: Active Application
First Claim
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1. a kind of optical element detection method, the method includes:

  • Speckle pattern is obtained, the speckle pattern is the laser of light source generation in the projector by being formed by image after optical element;

    The zero level region of the speckle pattern and the luminance mean value in zero level region, the zero level region are obtained according to the speckle pattern isThe maximum region of brightness;

    Detect the luminance mean value in region of the speckle pattern around the zero level region;

    The ratio of the luminance mean value in the region around the luminance mean value in the zero level region and the zero level region is more than firstWhen threshold value, then judge that the optical element is abnormal.

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