Product Details

Product Description

TH optics can supply standard and high-precision cylindrical lens,spherical lens,prism,aspherical lens,semi-finished blank lens in a variety of material, shapes, sizes, focal lengths and so on.

Specifications

Optical filters allow a portion of the spectrum to pass (transmit) while blocking the remainder.Based on different application filters come in many levels of performance and also known as Color Glass Filter ,dichroic filter, Neutural Density Filter, IPL Filter ,Band pass Filter, IR Cut Filter , reflective filter, optical thin film filter, Birefringent filter and interference optical filter. The simplest types of filter are made of absorptive materials such as some colour filter glasses yellow glass GG420, orange glass OG570 and red glass RG695 etc.. Certain wavelengths of light can be absorped by these kinds of colour glasses. Interference filters or dichroic filters are more complex and higher performance because of multiple layers dielectric materials deposited on a substrate causing constructive/destructive interference of the light in order to achieve the required performance.

Filters are designed by their manufacturers to transmit or absorb different wavelengths of light. Optical filter is widely used in medical instrument, finance, metallurgical, photography,cameras, navigation, military, biography instrument, optical instrument and science field etc.

Bandpass Interference Filters are designed to transmit a portion of the spectrum, while rejecting all other wavelengths. Notch Filters reject a portion of the spectrum, while transmitting all other wavelengths. Edge or Dichroic Filters transmit wavelengths that are either greater than the cut-on or shorter than the cut-off wavelengths. Color Substrate Filters utilize the material’s inherent adsorption and transmission properties, while ND Filters evenly reduce transmission across a portion of the spectrum.

Infrared optical glass

This kind of infrared optical glass include several types.

HWB760 HWB780 HWB800 HWB830 HWB850 / RG860 RG780 RG800 RG830 RG850

HB600 HB610 HB630 HB640 HB650 HB670 HB685 HB700

Specification

Substrate	Schott Float glass
Dimension	Round:Diameter3.5mm-180mm Square:3mm-150mm
Specification	CWL= 850nm ± 2nm Tave>85% @ 850nm ± 2nm Tpeak>85% FWHM= 30nm ± 2nm Blocking: Tave<0.01% @ 200~810nm,880~1200nm
Surface quality	60/40, 80/50
Other	Customized as per your request

Product Picture

I.Glass Filters show

Optics filter glass

II.Other products show

1.Cylindrical lenses 2.Spherical lenses

3.Optical Prism (Right angle prism, Equilateral triangular prism, Wedge prism, Dove prism, Powell prism, Roof prism,Corner Cube prism,Hexagonal prism, Polygonal prism, Beam splitting prism and so on)

4.Aspherical lens, Semi-finished blank lens, Filter, Waveplate, Optical window

5.Special Materials Lens (Germanium, Silicon, Zinc selenide, Zinc sulfide, Calcium fluoride, Fluoride barium, Magnesium fluoride, YAG crystal, Arsenic Gallium material and so on infrared optical elements)

Application

For example application in: Laser/Telecope/Camera/Endoscope