Optical Filters are used to selectively transmit or reject a wavelength or range of wavelengths. Optical Filters are used in applications such as fluorescence microscopy, spectroscopy, clinical chemistry, or machine vision inspection. Optical Filters are ideal for life science, imaging, industrial, or defense industries. CCJC Optics offers a variety of Optical Filters for many applications, including bandpass interference, notch, edge, dichroic, color substrate, or ND. CCJC Optics also offers highly durable hard coatings for applications that require high optical densities with maximum performance.
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.
| Material |
Glass |
| Center wavelength |
200nm-2500nm |
| Full width at half maximum |
5nm-50nm |
| Transmmission at CWL |
>90% according to the customer |
| Dimension |
3mm-80mm |
| Surface Quality |
40-20 |
| Cut off wavelength |
200-2500nm according to the customer |
| Clear Aperture |
>90% |
| Blocking |
>OD4-OD6 UV-NIR |
Our workshop
There are more than 50 high-performance machines and hundreds of experienced employees in our factory. In addition to the cold working of optical lenses, we also provide lens design, coating, assembly services. Our annual production capacity for general lenses and components is about 30 million pieces.
Optical Coating
Our technical team is capable of performing various types of coating processes to meet different need, including anti-reflective coatings, high-reflective coatings, long-pass coatings, short-pass coatings, handpass coatings, anti-laser coatings, waterproof coatings, metal coatings, and conductive coatings.
Quality Assurance
Product quality always comes first. We have a complete quality control system which can guarantee the precision of our products. Our testing instruments include spectrophotometer, goniometer, sphericity interferometers, laser interferometer and ZYGO profilometer etc. Before delivery, we will check the products one by one to see if they are qualified.
Certification
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