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PIR Fresnel Lens of Catalog from Yuying

PIR Fresnel Lens of Catalog from Yuying

Shrinkage Rate of Acrylic Material for Fresnel Lenses

Shrinkage Rate of Acrylic Material for Fresnel Lenses

Shandong Yuying Optical Instrument Co., Ltd

Shandong Yuying Optical Instrument Co., Ltd

Human Infrared Sensor Lens Design Parameters

Human Infrared Sensor Lens Design Parameters