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Contact person: Mr. Luo
Tel：13003800665
Email：lobo.luo@fzboyagd.com
Add：No.32, Rear Garden Road, Ma Bao Village, High-tech Zone, Fuzhou City, Fujian Province
Product Details
The center is thicker than the edge and has a converging effect on the light, so it is also called a converging lens. According to different shapes, convex lenses can be divided into biconvex lenses, plano-convex lenses and meniscus lenses, etc., by refracting light to change its propagation direction, so as to achieve the effect of image magnification, reduction, handstand or upright. The special shape leads to its unique optical properties. When the light passes through the cylindrical mirror, the light will be focused into a straight line or other forms of deformation. This property gives cylindrical lenses significant advantages in changing the size of the image, such as converting a point spot into a line spot, or changing the height of the image without changing the image width.
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Transmission range 420~5200nm 120~8500nm 200~2300nm Crystal structure Trigonal, Space Group R3c Trigonal, Space Group R3c Trigonal, Space Group R3c Crystal system Positive Uniaxial Positive Uniaxial Negative Uniaxial Crystal-containing cells a=b=0.515Å , c=13.863 Å a=b=4.621 Å , c=3.053 Å Density 4.64g/cm3 3.18g/cm3 2.65g/cm3 Hygroscopicity Low Low Low Mohs hardness 5 6 7 Thermal expansion coefficient aa =2.0 x 10-6/k@ 25℃ ac =2.2 x 10-6/k 25℃ aa =6.23-9.25 x 10-6/k ac =10.86-14.54 x 10-6/k aa =6.2 x 10-6/k ac =10.7 x 10-6/k Optical homogeneity 5 x 10-5/cm 10-6/cm 10-6/cm Absorption coefficient 0.1%/cm @ 1064 nm 0.07 at 0.2 μm; 0.1%/cm @ 1064 nm 0.02 at 5.0 μm Refractive index, birefringence, and dispersion angle (ρ) at 45° ne =2.20263, no =2.28629 Δn=0.08366 ne =1.38876, no =1.37698 Δn=0.01178 ne =1.55170, no =1.54265 Δn=0.00905 ρ =2.135 ° @ 633nm ρ =0.488 ° @ 633nm ρ =0.335° @ 633nm Diameter Max. 30~40mm Max. 50mm Max. 100mm Length Max. 25~35mm Max. 100mm Max. 100mm Surface finish Better than 20/10 Scratch/Dig Per MIL-0-13830A Beam deviation <10 arc seconds Optical axis direction +/-0.2 ° Surface shape < λ/6 @633nm Transmitted wavefront distortion < λ /4 @633nm Coating Upon Specification
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Contact: Mr. Chen
Telephone:13003800665
E-mail:lobo.luo@fzboyagd.com
Address: No.32, Rear Garden Road, Ma Bao Village, High-tech Zone, Fuzhou City, Fujian Province
