A lens is an optical device with perfect or approximate axial symmetry which transmits and refracts light, converging or diverging the beam. A simple lens is a lens consisting of a single optical element. A compound lens is an array of simple lenses (elements) with a common axis; the use of multiple elements allows more optical aberrations to be corrected than is possible with a single element. Manufactured lenses are typically made of glass or transparent plastic. Elements which refract electromagnetic[...]

Filters are designed by their manufacturers to transmit or absorb different wavelengths of light. And they are widely used in scientific experiments and industrial applications where that change is necessary. ?Color Separation Filter,Neutral Density Filter,Filter,Short/Long Wave Pass Filter,Bandpass Filter and Interference Filter Specification of our color filter as follow: Material:Filter Glass,BK7 Dimension: 4mm-160mm - 0.20mm Squares/Rectangles:1mm-165mm Thickness:0.5mm-4mm Thickness[...]

Windows are applied to isolate different physical environments while allowing light to pass. When selecting windows you should consider materials, transmission, scattering, wave front distortion, parallelism and resistance to certain environment. China star optics offers a wide range of different materials and different degree of precision windows. Specification of our optical windows as follow: *Material: Bk7 or other materials *Length tolerance:+/-0.01 *Width tolerance:+/-0.01 *Center thickness[...]

Wedge prism is an optical element having plane-inclined surfaces, usually the faces are inclined toward one another at very small angles. Wedges divert light toward their thicker portions. Specification of our wedge prism as follow: *Material:BK7 or(JGS1 JGS2 JGS3) *Glass Qualityz:nd+/-0.001~+/-0.0001 *Dimension Tolerance:+/-0.20mm~+0.01/-0.01mm *Thickness Tolerance:+/-0.20mm~+/-0.005mm *Surface Quality:80-50~10-5 *Surface Flatness: at 632.8nm lambda~ lambda /20 per 25mm *Clear Aperture[...]