Products : Ultraviolet Transmitting, Visible Absorbing Filters (U) : HOYA CANDEO OPTRONICS CORPORATION

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Ultraviolet Transmitting, Visible Absorbing Filters ( U )

	Ultraviolet Transmitting, Visible Absorbing Filters transmit the ultraviolet region but absorb the visible region. These filters are chiefly used for single extraction of ultraviolet rays. They are often utilized for selectively transmitting the 253.7 nm and 365 nm wavelengths, which are the representative line spectra of mercury lamps.

Transmittance

U330-360

Use our transmittance simulation software for further information on transmittance.

Ultraviolet Transmitting, Visible Absorbing Filter : Data

Item / Name		Standard value			Color specification (Standard illuminants A)		Thick-ness	Reflective index	Chemical properties		Thermal properties				Mechanical properties		Specific gravity
Item / Name		Tmax (%)	T254 (%)	T405 (%)	x	y	mm	600nm	DW	DA	Tg	TS	α -30/ 70	α 100/ 300	HK	FA	d
	U325B	85±5	—	<10	—	—	4.50	1.551	4	3	450	500	93	65	380	220	2.89
	U325C	85±5	>55	<10	—	—	4.50	1.551	4	3	450	500	93	65	380	220	2.89
	U330	85±5	>40	<15	—	—	2.50	1.552	4	5	470	505	82	93	420	230	2.78
	U340	75±5	<1.0	<0.1	—	—	2.50	1.571	4	4	530	565	85	96	430	250	2.92
	U360	70±5	<0.01	<1.0	—	—	2.50	1.537	3	2	520	560	100	111	560	140	2.74

Item / Name		Standard value				Color specification (Standard illuminants A)		Thick-ness	Reflective index	Chemical properties		Thermal properties				Mechanical properties		Specific gravity
Item / Name		T365 (%)	T405 (%)	T694 (%)	T750 (%)	x	y	mm	600nm	DW	DA	Tg	TS	α -30/ 70	α 100/ 300	HK	FA	d
	UL365S	≥73	≤7	≤3	≤45	—	—	3.25	1.532	1	1	527	687	—	88	490	100	2.61


	* The listed data are standard values. As we are always improving our products, the data listed are subject to change without notice.


		Explanation about the specification values in the tables is displayed.

		Explanation about the items other than specification values in the tables is displayed.

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