1.Ultra Thin Lenses 2.light rays which are reflected become polarized.polarizing filters are used to select which light rays enter your camera lens.they can remove unwanted reflections from non-metallic surfaces. The filter can remove the reflections from the non-metallic surfaces like water and gl......
1.Ultra Thin Lenses
2.light rays which are reflected become polarized.polarizing filters are used to select which light rays enter your camera lens.they can remove unwanted reflections from non-metallic surfaces.





An achromatic lens, also referred to as an achromat, typically consists of two optical components cemented together, usually a positive low-index (crown) element and a negative high-index (flint) element. In comparison to a singlet lens, or singlet for short, which only consists of a single piece of glass, the additional design freedom provided by using a doublet design allows for further optimization of performance. Therefore, an achromatic lens will have noticeable advantages over a comparable diameter and focal length singlet.

An achromatic lens is far superior to a simple lens for multi-color "white light" imaging. The two elements composing an achromatic lens (literally, "a lens with no color") are paired together for their ability to correct the color separation inherent in glass. Having eliminated the problematic chromatic aberrations, an achromatic lens becomes the most cost-efficient means for good polychromatic illumination and imaging.


Our cemented IR Achromatic Doublets, which are optimized at infinite conjugate ratios, are designed to work in the telecommunications region (1050 - 1700 nm). With design wavelengths at 1016 nm, 1330 nm, and 1550 nm, these achromatic doublets are useful for controlling chromatic aberration. They can also be used to achieve a diffraction-limited spot when using a monochromatic source like a laser.
4" Diameter UV Fused Silica AR -Coated Optical Protective Window
90% 13.93mm Fixed Focus Ar Infrared Imaging Uncooled Detector Thermal Imager Athermal Lens 50mm 640*512-17um Athermal Lens Focal Length 1.0 8-12um
1.56 Progressive Blue Cut Ar Coating Optical Lens for Eyeglasses
Customized Achromatic Doublet Lens Near UV or Near IR Optical Glass Silica Fused Quartz Bk7 2 Kind of Glasses Material Achromatic Lenses with Ar Bbar Coating
Customized Bk7/H-K9l AR Coated Spherical Optical Plano Concave Lenses
Custom Bk7/K9 UV Fused Silica Ar Coated Optical Plano Concave Lenses