Optical Fresnel Lens Long Shot Flashlight Condenser Parallel Spot Straight Light 3D VR Glasses Magnifier,Solar Concentrator

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  • Brand Name: SRATE
  • Origin: CN(Origin)
  • Certification: NONE
  • Shape: Other
  • Model Number: 50mm Round Optical PMMA Plastic Fresnel Condensing Lens
  • Usage: Optical
  • Structure: Other
  • Material: Other

Optical Fresnel Lens Long Shot Flashlight Condenser Parallel Spot Straight Light 3D VR Glasses Magnifier,Solar Concentrator

Round PMMA Plastic Fresnel Condensing Lens
Diameter: 50mm
Focal Length: 28mm 35mm 55mm 40mm 45mm 50mm 60mm
Thickness: 2mm
Thread Distance 0.3mm
Material: Optical PMMA
Transmittance: 92%
Magnification:3x
This Fresnel Lens can be used on Plane Magnifier,solar energy concentrator, 3D VR Glasses.
How to choose the correct focal length of the Fresnel lens used on the lamp?

1.The distance from the lamp bead to the lens position is called the object distance.
2. The object distance is not equal to the focal length of the selected lens
3. The focal length is appropriate, the light output angle is the smallest, 
and the light output angle will increase if the focal length is larger or smaller
4. According to experience, generally choose the lens whose focal length is equal to or greater than the object distance for testing.
5. Or you can contact us directly, we will help you find the correct focal length lens.


SKU: 32834095135 Category:

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