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        Model:64-5
        1. Material: Optical glass (high borosilicate, K9, BK7, BK270)
        2. Light transmission: 95% (97% after coating)
        3. Refractive index: 1.474
        4. Operating temperature: -50-500 degrees
        5. Size introduction: External diameter: 64mm, Internal: 46.1mm, Height: 21mm, Steps: 3mm
        6. Light angle: 125 x 70 polar street light lens
        Model:65-3
        1. Material: Optical glass (high borosilicate, K9, BK7, BK270)
        2. Light transmission: 95% (97% after coating)
        3. Refractive index: 1.474
        4. Operating temperature: -50-500 degrees
        5. Size introduction: Externa: 64mm, Internal: 55.27mm, Height: 20.43mm, Steps: 3mm
        6. Light angle:100*60
        Model:66-7
        1. Material: Optical glass (high borosilicate, K9, BK7, BK270)
        2. Light transmission: 95% (97% after coating)
        3. Refractive index: 1.474
        4. Operating temperature: -50-500 degrees
        5. Size introduction: External: 66mm, Internal: 61.65mm, Height: 24.4mm, Steps: 3.5mm
        6. Light angle:130*85
        3 条记录 1/1 页
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