Narrow Bandpass Filter

Narrow bandpass filter allow small light through, the narrower ,the more pure of the light.Sunday is producing standars narrow bandpass filter

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Product Details

The film of narrowband filter is generally composed of two kinds of films with low refractive index and high refractive index. After superposition, the number of layers can reach dozens of layers. The parameters of each layer of film may affect the final performance.

The transmittance of narrowband filter is very sensitive to the loss of thin film, so the production process is relatively high.The narrowband filters are mainly used in the applications of medical biochemical instrument, ELIASA, pesticide residue detection, water quality analysis system and variety of detecting instruments.

Features

High wavelength positioning accuracy

Hard and firm coating film

Good heat resistance and moisture resistance

Long service life(over 5 years under general condition)

Modules or Types

CWL(nm)	FWHM(nm)	Tmax(%)	Blocking Wavelength Range	Blocking	Size
295	12+/-2nm	T≥20%	200-2000nm	OD5(0.001%)	φ10 φ12 φ15 up to 50mm
420	8+/-2nm	T≥45%	200-1100nm	OD5(0.001%)	φ10 φ12 φ15 up to 50mm
465	8+/-2nm	T≥45%	200-1100nm	OD5(0.001%)	φ10 φ12 φ15 up to 50mm
510	8+/-2nm	T≥45%	200-1100nm	OD5(0.001%)	φ10 φ12 φ15 up to 80mm
525	8+/-2nm	T≥45%	200-1100nm	OD5(0.001%)	φ10 φ12 φ15 up to 80mm
562	8+/-2nm	T≥45%	200-1100nm	OD5(0.001%)	φ10 φ12 φ15 up to 80mm
589	8+/-2nm	T≥45%	200-1100nm	OD5(0.001%)	φ10 φ12 φ15 up to 80mm
605	8+/-2nm	T≥45%	200-1100nm	OD5(0.001%)	φ10 φ12 φ15 up to 80mm
620	8+/-2nm	T≥45%	200-1100nm	OD6	φ10 φ12 φ15
625	8+/-2nm	T≥45%	200-1100nm	OD5(0.001%)	φ10 φ12 φ15 up to 80mm
665	8+/-2nm	T≥45%	200-2000nm	OD6
730	10+/-2nm	T≥80%	200-1100nm	OD5(0.001%)	φ10 φ12 φ15 up to 50mm
870	30+/-2nm	T≥85%	200-1200nm	OD5	φ10 φ12
900	25+/-2nm	T≥85%	200-1200nm	OD5	φ30
915	30+/-2nm	T≥85%	200-1200nm	OD5	φ10 φ12
920	20+/-2nm	T≥20%	200-1200nm	T<10-4	φ30

Manufacture Specifications

Diameter	2mm to 200mm
Diameter Tolerance	+0.00/-0.1 or customer size
Material	N-BK7,H-K9L,Sapphire,Fused Silica(JGS1),Caf2,ZnSe,Si,Ge,etc.
Surface Quality	80-50 to 10/5
Flatness	1/4 lambda
Thickness Tolerance	+0.00/-0.05mm
Standard wavelength	270nm,311、360、380、473、532、650、780、808、850、904、940、1064 and 1900nm.
FWHM	5nm to 50nm
Transmission	60% to 99%
Average blocking	OD6

Sample Curves-540nm

Narrow Bandpass Filter

Notes: for more curves, please contact us.

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