The company adheres to the quality policy of “quality first, customer first, pursuit of excellence, and continuous improvement”. It is our unremitting pursuit to provide customers with high-quality products and professional services at preferential prices. We hope to use our professional services to provide you with a one-stop choice of optical products.
We always do the best
Know us in detail
Xiamen Betensh Optical Technology Co. , Ltd. focusing on the R&D, production, processing and sales of precision optical windows, lenses, prisms, filters and optical coating products. The company has a group of experienced R&D teams and production People and products are exported to the United Kingdom, Germany, Austria, Switzerland, Italy, Ireland, Sweden, Australia, Israel, the United States and other regions. According to the needs of each customer, we can process and customize the optical component products with different specifications in batches.
star products
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BBO（-BaB2O4 or BBO）
Specification: Material BBO Aperture 1*1-12*12mm Length 0.02-25mm Phase matching angles ditermined by different kinds of harmonic generation Phase matching type type I or type II Surface flatness <lambda/8@633nm Wavefront distortion <lambda/8@634nm Surface quality better than 20/10 Parallelism <20″ Perpendicularity <5″ Coating protective coating or AR coating Standard BBO Part no. Dimension(mm) Theta(deg) Phi(deg) Coating Application BBO001 4.0*4.0*7...
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Birefringent Filter
Specification: Material Crystal quartz Diameter Tolerance +0.0,-0.2 mm Thickness Tolerance +/-0.2 mm Surface Quality 20-10 scratch and dig Clear Aperture >90% Parallelism <5 arc seconds Wavefront Distortion <λ/8@632.8nm Thickness T=0.5 mm, 1 mm, 1.5 mm, 2.0 mm Coating Uncoated
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Roof Prism
Specification: Material BK7 grade A optical glass Dimension Tolerance +0.0, -0.2 mm Clear Aperture >85% Surface Quality 60-40 scratch and dig Roof Angle Tolerance < 1 arc minute Flatness λ/2 @ 632.8 nm Protective Bevel 0.25 mm x 45° BK7 Roof Prism Standard Products: Part No. A (mm) B (mm) h (mm) TRP101 15.0 15.0 12.0 TRP102 23.0 23.0 18.0 TRP103 31.5 31.5 23.0 Note: Other size, material and coatings are available...
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Rectangular Window
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Corner Cube Prism
Specification: Material BK7 grade A optical glass Dimension Tolerance +0.0,-0.2 mm Clear Aperture >85% Deviation 180°±3 arc seconds Flatness λ/4 @ 632.8 nm on big surface λ/10 @632.8 nm on other surface Surface Quality 60-40 scratch and dig Wavefront Distortion λ/2 @ 632.8 nm Protective Bevel from 0.2 mm to 0.5 mm x 45° BK7 Corner Cube Prism Standard Products: Part No. Ф (mm) h (mm) TCP101 15.0 11.3 TCP102 25.4 19.0 TCP103 3...
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Heteromorphic Window
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Cylindrical Lens
Specification: Material BK7 or Fused Silica Design Wavelength 632.8 nm Design Index: BK7 n=1.5147±0.0005 Fused Silica n=1.45702±0.00005 Surface Figure x: λ/2; y: 2λ Diameter Tolerance +0.00, -0.15 mm Thickness Tolerance ±0.2 mm Paraxial Focal Length ±2% Centration <3 arc minutes Clear Aperture >85% Surface Quality 60-40 scratch and dig Protective Bevel 0.25 mm x 45° BK7 Plano-Convex Cylindrical Lens Standard Products: Par...
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Ball Lens
Specification: Material BK7 grade A, B270, UV grade Fused Silica, Sapphire etc. Diameter Tolerance ±0.05 mm (Standard), up to +0.000/-0.002 mm Sphericity ±0.005 mm (Standard), up to +/-0.6 um Surface Quality 60-40 S/D (Standard), up to 20-10 S/D Coating uncoated
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Achromatic Lens
Specification: Material BK7 grade A optical glass Design Wavelength 480.0nm,546.1nm,643.8 nm Diameter Tolerance +0.0, -0.15 mm Thickness Tolerance ±0.2 mm Paraxial Focal Length ±2% @546.1 nm Centration <3 arc minutes Clear Aperture >85% Surface Irregularity λ/4@632.8 nm Surface Quality 60-40 scratch and dig Protective Bevel 0.25 mm x 45° Positive Achromatic Lens Standard Products: Part No. f (mm) Ф (mm) R1 (mm) R2=R3 (mm) R4 (mm) tc1 (mm) t c2 (mm...