Light Balancing Filters (LA, LB)

Colored Glass Filters

COLORED GLASS FILTERS

Optical Filter HOME
Products
Colored Glass Filters
Light Balancing Filters (LA, LB)

Light Balancing Filters (LA, LB)

The features of these filters include gradually increasing or decreasing the transmittance in the visible range.
This type of filter is used for converting or controlling color temperature when photographing.
Adjust the polished thickness to create a filter with the capacity for any color temperature conversion.

Application: Camera, Inspection Device

Images: LA20 / LA140 / LB20 / LB165 from top

Transmittance
Data

Transmittance

Light Balancing Filter: Data

Item	Standard Value	Color specification (Standard illuminants A)		Thickness	Refractive Index	Chemical property		Thermal properties				Mechanical properties		Specific gravity
	V(mired)	x	y	mm	600nm	DW	DA	Tg	Ts	α -30/70	α 100/300	HK	FA	s
LA20	+20±5	0.467	0.408	–	1.547	2	1	505	545	89	102	520	130	2.73
LA40	+40±5	0.469	0.413	–	1.554	2	1	505	550	88	102	520	130	2.76
E-LA80	+80±5	0.490	0.415	–	1.526	3	1	510	560	100	113	530	130	2.67
E-LA120	+120±5	0.510	0.415	–	1.524	3	1	515	565	99	110	530	130	2.68
E-LA140	+140±5	0.519	0.415	–	1.524	3	1	515	565	99	110	530	130	2.68

Item	Standard Value	Color specification (Standard illuminants A)		Thickness	Refractive Index	Chemical property		Thermal properties				Mechanical properties		Specific gravity
	V(mired)	x	y	mm	600nm	DW	DA	Tg	Ts	α -30/70	α 100/300	HK	FA	s
LB40	-40±5	0.417	0.404	–	1.509	2	1	460	515	92	115	490	110	2.81
LB80	-80±5	0.388	0.398	–	1.541	2	1	460	510	99	116	490	110	2.83
LB120	-120±5	0.365	0.379	–	1.517	2	1	480	535	94	105	520	130	2.57

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