Optical Colored glass Filters

Optical Colored glass Filters
*Optical filters are playing more and more important role in light industry and they are widely used in analytical and clinical instruments in life sciences, biotechnology, drug discovery, and industrial markets etc.
Also filters for other various applications, including color imaging, machine vision, process control, photolithography, environmental monitoring and security, are available upon request.

*Cut-off type colored optical filter glass
The glass is named based on spectral characteristic of which is represented by the wavelength transmission limit. For example, if the transmission limit of glass is 490nm,then it is named as JB490.There are five groups and 35types glasses.

Selective absorption colored optical filter glass
This part of the glasses can be divided into 14 kinds and 78 types based on the color and application in this catalogue. The types are arranged in accordance with serial numbers, which have no special meaning.

Neutral filter glass
They are named based on the average transmissivity characteristics in 400nm to 700nm wavelength with 2mmthick sampler is 70%,then it's named as ZAB70.And there are ten types of glasses in this part. But three types of them(ZAB65,ZAB30,ZAB5)are tested in 440nm-660nm wavelength.

*Specifications:
Material: Color glass
Dimension Tolerance: +0.0, -0.2mm
Thickness Tolerance: ±0.2mm
Surface quality: 80/50
Clear Aperture: >85%
Flatness: 1 λ per 25mm@633nm
Parallelism: ±3'
Bevel: <0.25mm×45°
Coating: Upon requirement

*Please feel free to contact with us.Your specific requirements will be satisfied in professional service.More information,please refer to http://www.dnd-optics.com