It's fabricated by special color glass material. Color Glass Filters are designed by their manufacturers to transmit and / or absorb different wavelengths of light. Tian Cheng optics can supply a full range of filter. They are short pass, long pass, band pass, ultraviolet, infrared, heat absorbing, and color temperature conversion filters. We use material by China to Schott, Hoya, and other manufacturers to process them. Metallic films, colored glasses and thin dielectric films filter are all available per your requirements.
|Material||Color glass from Schott or equivalent|
|Diameter Tolerance||+0.00,-0.15 mm|
|Thickness Tolerance||±0.2 mm|
|Surface Quality||60-40 scratch and dig|
|Parallelism||< 3 arc minute|
|Wavefront Distortion||1λ per 25 mm @632.8 nm|
|Protective Bevel||<0.25 mm x 45°|
Color Glass Filter Standard Products:
|Color||Part No.||Part No.||Part No.|
Note: The general tolerance specifications above provide a guideline regarding manufacturing capabilities for optics ranging in size from 1-200mm. The manufacturing limits are not absolute; tighter tolerances may be possible. Part specific tolerances may vary depending on component size, shape and material.