LSD® Light Shaping Diffusers

LSD® Light Shaping Diffusers homogenize and directionally shape light with a high-transmission efficiency that is required in many advanced applications.  Diffusers with elliptical and circular outputs are available in a variety of substrates, sizes and angles. Depending on your needs, Luminit can provide LSD in sheets or in Luminit’s proprietary and patented seamless web rolls.

Light Shaping Diffusers (LSD ^® ) are products of years of research and development by our scientific and engineering team in holography, web mastering and replication. Luminit offers outstanding performance (85-92% transmission) in a wide wavelength range of 360-1600 nm. LSDs, as fully randomized (non-periodic) structures, work well with collimated and non-collimated, coherent and incoherent light, white or single-wavelength source, an LED or a laser diode, or halogen/filament lamp. We provide our customers with superior quality of homogenized light, including custom angles. Our diffusers come in variety of shapes, sizes, angles, thickness, materials and forms.

Availability : Custom-made and standard angles, circular and elliptical configurations, variable sizes and different substrate materials, rolls, sheets, laminated glass, kits. Examples of our standard products are shown below.

Applications: Displays and light screens, projection systems, flat panel TVs, computer monitors, palm-held displays, barcode scanning, flashlight, lamp, microscope, fiber-optics, and LED illumination, laser, LD and CCFL homogeneity and beam shapers, optical sensing, bio-medical instrumentation, architectural, office and in-house lighting, automotive lighting, signs, posters and cell phone displays Call our Sales or Engineering team to satisfy your requirements.

Technology Specs

LSD Angle Range FWHM Circular: 0.2° to 80° Elliptical: minor 0.2° to 60° major: 10° to 95° Humidity > 95% ± 5% RH @ 24hrs. Transmission Efficiency Circular 0.2° to 20° 90% 20° to 80° 85% Elliptical 85% Refractive Index PC=1.586; PE=1.640; AC=1.494; Epoxy=1.586 Angle Tolerance (10" x 10" Part Only) 1° ± 0.5°    1° < Angle  10° ± 1° >  10° ± 10% Pencil Hardness > 3H Transmission Spectral Range 365nm to 1600nm Yellow Index 0.3% glass exposure (600 hrs) 2.6% direct exposure (600 hrs) Brightness Uniformity 85% Adhesion 100%-Crosshatched adhesion test ASTM-D3359 Cosmetic Defects Not to exceed 1000 microns Laser Damage GL=8.1 J/cm²;PC=0.22 J/cm²;PE=0.2 J/cm2; AC=0.17 J/cm²@ 1064 nm, 10 ns pulse Temperature Range -30°C to 100°C @ 240 hrs. Solvent Resistance LSD surfaces are resistant to acetone, rnethanol, MEK, Windex®, gasoline, methylene chloride, and chloride bleach.     Cleaning Procedure DI water rinse followed by forced air drying, wipe gently with lens paper soaked with methanol, followed with forced clean air or nitrogen drying.