fresnel lens Diameter 160 mm Focal length 290mm Round Fresnel Lens short focal length thickness 2mm circle lens for DIY

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KHFP-200 Fresnel Condensing lens, Pmma materials, Size: 200X170mm, Thickness: 2mm ,Focal length: 170mm, Focus multiples: 800

TRCO-110 Fresnel Condensing lens, Pmma materials, Size: 110X90mm, Thickness: 2mm ,Focal length: 90mm, Focus multiples: 700

GABL-280 Fresnel Condensing lens, Pmma materials, Size: 280X280mm, Thickness: 2mm ,Focal length: 220mm, Focus multiples: 800

ICWY-360 Fresnel Condensing lens, Pmma materials, Size: 360X240mm, Thickness: 2mm ,Focal length: 330mm, Focus multiples: 800

ZKVQ-230 Fresnel Condensing lens, Pmma materials, Size: 230X150mm, Thickness: 2mm ,Focal length: 140mm, Focus multiples: 700

LJRZ-400 Fresnel Condensing lens, Pmma materials, Size: 400X300mm, Thickness: 2mm ,Focal length: 510mm, Focus multiples: 700

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