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Dichroic Filters (O°) - Band-pass / Band-blocking Type

Our Dichroic filters are comprised of a thin-film dielectric coating on glass, resulting in sharp transitions between the transmitted and reflected bands. With negligible absorption, this type of filter is ideal for high powers and lacks the strong fluorescence of certain glass filters.
If more selective, stronger blocking is required we recommend one of our stocked glass or band-pass interference filters. The Dichroic filters listed below are of the Band-pass/Band-blocking type.
The data given below is relevant for normal incidence, when used at 45° the shift towards shorter wavelengths is about 35-50nm.

Specifications:

Diameter:	+0.0 / -0.2 mm
Length/width:	± 0.2 mm
Thickness:	± 0.25 mm
Surface quality:	<60-40 scratch/dig

* Transition wavelength
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Part No.	Type	TWL (T=50%) nm	Pass band (nm)	Block band (mm)	Size/dimensions (mm)	Thickness (mm)	Description	Price (Ex.VAT)	Buy Now	Get Quote
555FDC2500	Band-blocking filter	485 - 630	400-460/630-730	530-560	25 dia	1	Magenta	£22.60	QTY:	Quote Me
555FDC5050	Band-blocking filter	485 - 630	400-460/630-730	530-560	50 x 50	1	Magenta	£37.10	QTY:	Quote Me
541FDC5050	Band-pass filter	505 - 575	530-550	380-460/600-730	50 x 50	1	Green	£37.90	QTY:	Quote Me
541FDC2500	Band-pass filter	505 - 575	530-550	380-460/600-730	25 dia	1	Green	£23.20	QTY:	Quote Me