{"product_id":"flat-lenses-pbl25-633-f75-1","title":"Flat Lenses PBL25-633-F75","description":"\u003cp\u003eThe LBTEK Flat Lens is a diffractive optical element that achieves beam convergence or divergence based on the polarization state of the incident light. The polarization direction of outgoing light is opposite to incident light. By controlling incident polarization, users can modulate the energy distribution of converging and diverging spots.\u003c\/p\u003e\n\u003cp\u003eThe flat lens operates as a planar diffractive device where the diffraction angle follows the relation sinθ = λ\/p. The continuous variation of periodic structure provides aspherical aberration-free property with all rays converging precisely at the same point.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLiquid Crystal Polymer\/N-BK7 Window Material, sandwich flat structure\u003c\/li\u003e\n\u003cli\u003eFast axis orientation with continuously graded distribution and periodically decreasing radial alignment\u003c\/li\u003e\n\u003cli\u003ePolarization-dependent: converging or diverging light based on polarization state\u003c\/li\u003e\n\u003cli\u003eFlat structure, single wavelength, large dispersion, no spherical aberration\u003c\/li\u003e\n\u003cli\u003eFlexible customization available\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFlat Lens, Clear Aperture Ø20 mm\u003c\/h3\u003e\n\u003cp\u003eStandard flat lenses with design wavelengths of 532 nm and 633 nm, and focal lengths of 50 mm, 75 mm, and 100 mm. Fabricated on N-BK7 window substrates with double-layer structure providing uniform phase retardation.\u003c\/p\u003e","brand":"WaveQuanta","offers":[{"title":"Default Title","offer_id":47499165499546,"sku":"PBL25-633-F75","price":1040.18,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6156\/3546\/files\/1-Fs8HqF2F_UUhiTfepVrjEJeOEmTo_0d4eba0c-0e02-4275-a78d-56bedbd570f6.jpg?v=1772280037","url":"https:\/\/waveqvanta.com\/products\/flat-lenses-pbl25-633-f75-1","provider":"WaveQuanta","version":"1.0","type":"link"}