VFD Filters

PCI Labs offers more than 20 different colours of Chromafilters for Vacuum Fluorescent Displays. Our Chromafilter VFD filters are used to provide optimum readability and contrast enhancement of your VFD’s. The filter’s light transmittance can be adapted to emit light in combination with your VF display in your choice of colours! You can create a high degree of contrast by choosing either a filter with a narrow transmittance curve or a dark tinted filter. The latter will make information from the display stand out clearly against dark backgrounds. This may increase readability and at the same time provide an elegant design function.

Technical Data
Thickness from 0.5 mm. Tolerance down to +/- 0.1 mm.
Dimensions up to 1500 x 1000 mm. UV block up to 400 nm

Chromafilter ND Filters
Neutral Density Filters (ND Filters) are for evaluation purposes only. Use the filters in front of VF Display + selected Colour Conversion Filter to simulate a two-layer solution. In a typical two-layer solution the Chromafilter ND filter is a 3D shaped, injection moulded cover glass.

Chromafilter specifications optimized for Vacuum Fluorescent Displays (VFD)

Chromafilter	Color	Chromatic Values (CIE 1931)		Relative light intensity (%)
Chromafilter	Color	x	y	Relative light intensity (%)
S 106	Amber	0.48	0.46	6.3
S 107	Warm Green	0.37	0.62	10.5
S 110	Red	0.70	0.30	4.2
S 140	Green	0.15	0.62	18.5
S 142	Green	0.11	0.68	16.3
S 202	Cool Blue / Ice Blue / Blue Green	0.19	0.31	27.9
S 221	Blue	0.12	0.18	25.4
S 243	Cool Green	0.10	0.47	22.8
S 721	Yellowish White	0.42	0.44	24.7
S 722	LED Yellow	0.54	0.43	14.4
S 727	Cold White	0.31	0.35	36.2
S 728	Cold White + N.D.	0.30	0.34	16.1
S 735	Bluish Green	0.19	0.37	13.7
S 737	Green + N.D.	0.27	0.59	14.3
S 738	Green	0.26	0.59	35.2
S 743	Greenish White	0.25	0.35	51.6
S 745	White, neutral cool	0.32	0.32	30.4
S 746	White, neutral definition	0.33	0.33	30.3
S 751	Orange – N.D.	0.48	0.52	10.1
S 752	Yellow + N.D. (Neon Green)	0.32	0.59	24.8
VFD	Display W.O. Filter (FUTABA)*	0.23	0.41	100.0

Selected Neutral Density Filters (ND Filters)

Chromafilter	Color	Chromatic Values (CIE 1931)		Relative light intensity (%)	Total Transmittance (400 to 740mm)
Chromafilter	Color	X	Y	Relative light intensity (%)	Total Transmittance (400 to 740mm)
ND 20%	Neutral Density Filter 20%	0.24	0.44	19.5	21.5
ND 25%	Neutral Density Filter 25%	0.24	0.43	24.5	26.4
ND 30%	Neutral Density Filter 30%	0.24	0.43	27.9	29.7
ND 35%	Neutral Density Filter 35%	0.24	0.43	34.5	36.3
ND 40%	Neutral Density Filter 40%	0.23	0.42	39.0	40.7

Chromafilter VFD Filters • Transmittance Curves

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