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Narrowband filters

更新時(shí)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 n_e
80 mm square	Center Wavelength (nm)	FWHM (nm)	Minimum Peak Transmission (%)	Effective Index of Refraction n_e
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