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Narrowband filters

  • Narrowband filters

  • 更新時間：2012-04-27 16:32:34

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●Product Description

Our NarrowbandFilters pass a narrow spectral band of UV, visible, or NIR radiation and reject out-of-band wavelengths from the X-ray to the far IR. Applications include spectral radiometry, medical diagnostics, chemical analysis, colorimetry, astronomy, and wherever spectral isolation is required. 

●Product Detail

 

Giai Bandpass Filters are manufactured using methods and materials designed to deliver the highest spectral performance 
Bandpass filters transmit light only within a defined spectral band ranging from less than one to many nanometers wide. They are used in a wide variety of applications where spectral isolation is required. Bandpass filters are preferable to monochromators because of their higher transmission and better signal-to-noise.

 

●Specifications

 

 Minimum Active Area  20.2 mm diameter for round filters;
45.5 mm sq for square filters
 Surface Quality  80-50 scratch-dig; F/F per MIL-F-48616
 Size Tolerance  +0/-0.5 mm
 Thickness  £7.6 mm
 Out-of-Band Blocking  Xray–Far IR, T£0.01% or 10-4 (a crossover leak may be present on some models - see data curves)
 Wavelength Shift with Temperature  0.01 to 0.02 nm/° C
 Specification Temperature  23 °C
 Temperature Range  -50°C to +100°C (70°C for Mercury Line Filters)
 Humidity Resistance  Per MIL-STD-810E, method 507.3, procedure III, modified to 5 cycles
 Cleaning  Non-abrasive method, acetone or isopropyl alcohol on lens tissue recommended
 Damage Threshold  Not for high power lasers
 Data Curve Information

 Bandshape specifications and marker wavelengths are provided as approximate reference data only

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 Model

  Center 
Wavelength
(nm)		  FWHM
(nm)		  Minimum Peak 
Transmission
(%)		  Effective Index 
of Refraction ne
 80   mm square
 20BPF25-400  400±3.5  25±3.5  35  1.55
 20BPF10-410  410±2  10±2  45  1.5
 20BPF10-420  420±2  10±2  45  1.5
 20BPF10-430  430±2  10±2  45  1.5
 20BPF10-440  440±2  10±2  45  1.5
 20BPF10-450  450±2  10±2  45  1.5
 20BPF25-450  450±3.5  25±3.5  45  2.0
 20BPF10-460  460±2  10±2  50  2.0
 20BPF10-470  470±2  10±2  50  2.0
 20BPF10-480  480±2  10±2  50  2.0
 20BPF10-490  490±2  10±2  50  2.0
 20BPF10-500  500±2  10±2  50  2.0
 20BPF25-500  500±3.5  25±3.5  50  2.0
 20BPF10-510  510±2  10±2  50  2.0
 20BPF10-520  520±2  10±2  50  2.0
 20BPF10-530  530±2  10±2  50  2.0
 20BPF10-540  540±2  10±2  50  2.0
 20BPF10-550  550±2  10±2  50  2.0
 20BPF25-550  550±3.5  25±3.5  50  1.5
 20BPF10-560  560±2  10±2  50  2.0
 20BPF10-570  570±2  10±2  50  2.0
 20BPF10-580  580±2  10±2  50  2.0
 20BPF10-590  590±2  10±2  50  2.0
 20BPF10-600  600±2  10±2  50  2.0
 20BPF25-600  600±3.5  25±3.5  50  1.5
 20BPF10-610  610±2  10±2  50  2.0
 20BPF10-620  620±2  10±2  50  2.0
 20BPF10-630  630±2  10±2  50  2.0
 20BPF10-640  640±2  10±2  50  2.0
 20BPF10-650  650±2  10±2  50  2.0
 20BPF25-650  650±3.5  25±3.5  50  1.5
 20BPF10-660  660±2  11±2  50  2.0
 20BPF10-670  670±2  11±2  50  2.0
 20BPF10-680  680±2  11±2  50  2.0
 20BPF10-690  690±2  11±2  50  2.0
 20BPF10-700  700±2  12±2  50  2.0
 20BPF25-700  700±3.5  25±3.5  50  1.5
 20BPF10-750  750±2  13±2  50  2.0
 20BPF25-750  750±3.5  25±3.5  50  1.5
 20BPF10-800  800±2  12±2  45  1.47
 20BPF10-850  850±2  13±2  45  1.47
 20BPF10-900  900±2  10±2  45  1.47

 

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