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Home › Illumination apparatus having a coherent light source and diffraction optical device that has a plurality of diffraction zones and widens the width of the illumination zone

Illumination apparatus having a coherent light source and diffraction optical device that has a plurality of diffraction zones and widens the width of the illumination zone

US Patent 11505111 · Granted Nov 22, 2022

Estimated economic value: $12,862,000 ⓘ

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