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      Zoom projection lens

      Lens No. Zoom projection lens 1#
      focus 20.76-22.8mm
      work f/NO F2.35-2.43
      Resolution 1024×768
      Throw ratio 1.8
      Image circle diameter φ21.6mm
      back working distance >31mm
      Total length of Lens 70.3-77mm

       

      Lens No. Zoom projection lens 2#
      focus 21.42-25.69mm
      work f/NO F2.4-2.6
      Resolution 1024×768
      Throw ratio 1.93
      Image circle diameter φ21.4mm
      back working distance >34mm
      Total length of Lens 92.4-97.5mm

      ?

      Lens No. Zoom projection lens 3#
      focus 19-22.8mm
      work f/NO F2.17-2.4
      Resolution 1024×768
      Throw ratio 1.67
      Image circle diameter φ19.1mm
      back working distance =28.6mm
      Total length of Lens 104mm

       

      ?

      Lens No. Zoom projection lens 4#
      focus 25-30
      work f/NO F2.4-2.6
      Resolution 1024×768
      Throw ratio 1.8
      Image circle diameter φ20.7mm
      back working distance 34.2mm
      Total length of Lens 93.5mm

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      Lens No. Zoom projection lens 5#
      focus 20.42-22.59mm
      work f/NO F2.43-2.63
      Resolution 1280×720
      Throw ratio 1.8
      Image circle diameter φ20.7mm
      back working distance 34.2-36.3mm
      Total length of Lens 93.5-98.3mm

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