Customization: | Available |
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Usage: | Medical, Optical |
Type: | Convex Lens |
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Bi-Convex (Double-Convex) lenses have the same radius of curvature on both sides of the lens and function similarly to plano-convex lenses by focusing parallel rays of light to a single point. As a guideline, bi-convex lenses perform with minimum aberration at conjugate ratios between 5:1 and 1:5. (Outside this range, plano-convex lenses are usually more suitable.) Bi-Convex lenses are the best choice when the object and image are at equal or near equal distance from the lens. Not only is spherical aberration minimized, but coma, distortion and chromatic aberration are identically canceled due to the symmetry. N-BK7 lenses are a great choice for most general purpose visible and NIR applications, featuring high homogeneity and low bubble and inclusion content. UV Fused Silica lenses are ideal for UV or higher energy applications, combining a very low thermal expansion coefficient and excellent transmittance down to 195 nm.
Specification:
Material | optical glass |
Surface Figure | λ/2 |
Diameter Tolerance | +0.1, -0.1 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° |
Other Items
Factory information
Changchun Yutai Optics Co.,Ltd. is a manufacturer with ISO9001 certification. We are specialized in high-performance optical components include lens, mirrors, filters, windows and prisms which are specified by customers. YutaI's items are widely used in imaging, defense, medical, laser and industry market.
As a fast-growing supplier in optics, Yutai Optics has quickly established itself as a leader in optical components with advanced technology and quality control ability as Yutai aims to provide professional service and good quality items to meet customers' request. Yutai has already established long-term cooperative relation with many powerful companies all over the world.
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