Focal length:650 mm
Groove pitch :0.5 mm
specificationproduct NO.:BHPA- L650Focal length:650 mmGroove pitch :0.5 mmSize:400*320mmThickness:2 mmMaterial:optica Acryli
feature ad advantages:1.high light transmittance2.limpid transparent3.high light penetrability,more brighter4.high quality competitive price. 5.caring service.6.custom size.
the range of Application:focusing actions.It is suitable for miner's lamp,LED lamps and lanterns.also suitable for Solar energy collector system, solar furnace,magnifier and so on...
over 10 year's professional manufacturer and fresnel lens design.we made mould by ourselves we can provide the custom size
we can assure the definition and the luminous flux of the products