Related Products
940nm Day Night Filter
850nm Day Night Filter or 850nm IR Filter
650+940nm Narrow Double Bandpass Filter
490+660nm Double Bandpass Filter
 Home > Filters > Bandpass Filters > Double Bandpass Filters > 490+660nm Double Bandpass Filter
 
490+660nm Double Bandpass Filter

 
Double Bandpass filters are designed with 2 area transmission, while all other spectrums blocked or reflected. Usually, one area is of visible light and the other NIR light. Different areas could be designed for vary equipments or applications, such as 620+890nm, 630+890nm and 650+940nm type.
     
   
Specifications:
Centre Wavelength(CWL):
490nm and 660nm, TOL +/-3nm
FWHM(50% point):
490+/-30nm, 660+/-20nm
Transmission:
T>86% at CWL=490nm and 660nm
Size:
customized, from 2x2mm to Dia. 110mm, +/-0.1mm
Thickness:
0.3~3mm
Surface quality:
60/40~20/40
Clear aperture:
>90%, or full surface coatings
Substrate:
vary customized, such as B270, BK7, sodalime glass etc.
High transmission at the CWL, from 80% ~ 95% according to the bandwidth.
High blocked rate at OD4
Precise point of the CWL
Singlet substrate with coatings

 
 
[ close ]
 
 

Copyright 2003~2016, Lenoptec Co., Ltd Tel: 86-591-888 62350, Fax: 86-591-8791 5050
http://www.lenoptec.com Email: info@lenoptec.com  All rights reserved, Recorded Fujian ICP # 08103060