Silicon Lens
Silicon material has good thermal conductivity, low density, high hardness, and good light transmittance at 1.5-8um. Monocrystalline silicon is usually used as the substrate for 3-5μm mid-wave infrared optical windows, infrared lenses, and optical filters. It is also a common material for the reflector substrate in CO2 lasers and spectrophotometers
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Overview
Silicon material has good thermal conductivity, low density, high hardness, and good light transmittance at 1.5-8um. Single crystal silicon is usually used as the substrate for 3-5μm mid-wave infrared optical windows, infrared lenses, and optical filters. It is also a common material for the reflector substrate in CO2 lasers and spectrophotometers. Spherical lenses include both converging lenses such as plano-convex and biconvex lenses, and divergent lenses such as biconvex and plano-concave lenses. If a spherical lens is converging, it has a positive focal length, the image will be true and the direction will be upright. The center of a converging lens is thicker than the edges, so rays parallel to the principal axis converge toward the principal focus. Divergent spherical lenses are thinner in the center and thicker at the edges. Because parallel rays of light diverge as they pass through the lens, they appear to come from a virtual focus (negative focal length) at a point in front of the lens. We call it a virtual focus because the light doesn't actually pass through it and the image appears upside down
Specifications
| Parameter | Value |
|---|---|
| Lens Aperture Range | 3mm-100mm |
| Edge Thickness Range | ≥0.7mm |
| Center Thickness Range | ≥1mm |
| Sag Processing Range | ≤21mm |
| Aperture to Center Thickness Ratio | 17 |
| Surface Flatness Pv | 0.1μm |
| Roughness Ra | 4nm-10nm |
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Supplier Information
Jiangxi Ootee Optics Co., Ltd. is a high-tech enterprise specializing in the production and sales of precision optical components, with complete production lines for cold processing of flat mirrors, cold processing of spherical mirrors, cold processing of cylindrical mirrors, aspheric processing, and optical coating. The production technology of infrared optical components is mature, capable of small-batch trial production and large-scale production. It has the capability of optical application design and coating design, providing customers with comprehensive and reasonable product solutions.
Advanced testing technology is the foundation of quality assurance. Our company is mainly equipped with spectrophotometers, laser interferometers, image measuring instruments, Fourier transform infrared spectrometers and other testing equipment to ensure the accuracy of products in terms of dimensions, surface accuracy, radius of curvature, focal length, coating indicators, surface measurement, etc.
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