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Dichroic Filters (O°) - Short-pass 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 Short -pass 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 ** For full range of hot mirrors, click here.

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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
435FDC2500	Short-pass filter	435	390-415	475-720	25 dia	1	Violet	£22.60	QTY:	Quote Me
435FDC5050	Short-pass filter	435	390-415	475-720	50 x 50	1	Violet	£38.20	QTY:	Quote Me
435FDC2515	Short-pass filter	435	390-415	475-720	25 x 15	1	Violet	£11.50	QTY:	Quote Me
435FDC4025	Short-pass filter	435	390-415	475-720	40 x 25	1	Violet	£21.25	QTY:	Quote Me
465FDC2500	Short-pass filter	465	400-440	500-740	25 dia	1	Deep blue	£22.60	QTY:	Quote Me
465FDC5050	Short-pass filter	465	400-440	500-740	50 x 50	1	Deep blue	£38.20	QTY:	Quote Me
505FDC2500	Short-pass filter	510	400-490	550-700	25 dia	1	Blue	£22.60	QTY:	Quote Me
505FDC5050	Short-pass filter	510	400-490	550-700	50 x 50	1	Blue	£37.10	QTY:	Quote Me
540FDC2500	Short-pass filter	540	400-510	580-710	25 dia	1	Light blue	£22.60	QTY:	Quote Me
540FDC5050	Short-pass filter	540	400-510	580-710	50 x 50	1	Light blue	£38.20	QTY:	Quote Me
585FDC2500	Short-pass filter	585	420-565	630-760	25 dia	1	Cyan	£22.60	QTY:	Quote Me
585FDC5050	Short-pass filter	585	420-565	630-760	50 x 50	1	Cyan	£37.10	QTY:	Quote Me
660FDC2500	Short-pass filter	660	400-640	690-1000	25 dia	1	IR block	£22.60	QTY:	Quote Me
660FDC5050	Short-pass filter	660	400-640	690-1000	50 x 50	1	IR block	£40.50	QTY:	Quote Me
730FDC2500	Short-pass filter	730	425-675	750-1150	25 dia	3.3	Hot mirror	£17.60	QTY:	Quote Me
730FDC5050	Short-pass filter	730	425-675	750-1150	50 x 50	3.3	Hot mirror	£41.90	QTY:	Quote Me