Custom Optical components| Polarizers - CeNing Optics
Professional manufacturer of optical components
Bandpass Filters
Band pass filter plate are divided into short-pass and long-pass filters according to whether they transmit below or above the transition wavelength. The transition wavelength or cut-on/off wavelength is the wavelength at which the transmission is 50% of its peak value.
 
 
General Specifications
Material
BK7, Fused silica
Dimension tolerance
±0.1mm
Parallelism
3 arcmin
Flatness
λ/4 @633nm
Surface quality
60-40 S/D
 
 
Coating
One surface(S1)
HR @ wavelength-1 + HT @ wavelength-2
The other surface(S2)
depends
Angle of incident
0°  or  45°
 
Typical Sizes
Diameter(mm)
Φ5.0
Φ10.0
Φ12.7
Φ15.0
Φ20.0
Φ25.4
Φ30.0
Φ38.1
Φ50.8
Φ76.2
 
Thickness(mm)
0.5
1.0
1.5
2.0
3.0
4.0
5.0
 
 
 
other sizes and shapes are available
 
 
 
 
 
 
        How to order Bandpass filters?              Example:
Material:   N-BK7
Size:   Φ20±0.1mm
Thickness:   2.0±0.1mm
Coating:   T>80%@400-500nm, AOI=0-8°
    T=50%@590±15nm
:   T<1%@640-740nm
 
   Price on Request
 
   Custom Design
 
   Volume Discount 
CeNing Optics Co.,Ltd, Tel: +86 591 8733 8232 Fax: +86 591 8733 4595 E-mail: sales@cn-optics.com
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