Neutral Density Filters
Shortpass
Neutral Density Filters
Longpass
This line is a reflective type of neutral
density (ND) filter which is used to control
light intensity.
Coated chromel layer attenuates the
light by mainly reflecting and partially
absorbing. Our ND filters are designed to
keep spectrally even performance in VIS
range. We have 6 kinds of attenuation
rate.
Bandpass
Please contact us for custom filters that
you cannot find in the standard product
line.
Size
25mm dia
Thickness
1mm
Size
50mm
Thickness
1mm
UV Series
Neutral
Density
Dimensions
Clear Aperture
46mm
Others
Super Cold
Clear Aperture
23mm
84
Ordering Information
Order online: www.asahi-spectra.com E-mail: [email protected]
Neutral Density Filters
Wavelength Range
(nm)
Substrate
Thickness
(mm)
1
3
6
12
25
50
400-700
400-700
400-700
400-700
400-700
400-700
Fused Silica
Fused Silica
Fused Silica
Fused Silica
Fused Silica
Fused Silica
1
1
1
1
1
1
Item Number
25mm Diameter
50x50mm
XND0001
ZND0001
XND0003
ZND0003
XND0006
ZND0006
XND0012
ZND0012
XND0025
ZND0025
XND0050
ZND0050
Longpass
Transmittance
(%)
Shortpass
Specifications
Bandpass
Neutral
Density
UV Series
Super Cold
Others
Ordering Information
Order online: www.asahi-spectra.com E-mail: [email protected]
85
Neutral Density Filters
Shortpass
XND0001
ZND0001
T%
5
4
3
Longpass
2
1
Bandpass
0
XND0003
ZND0003
400
450
500
550
600
650
700nm
400
450
500
550
600
650
700nm
400
450
500
550
600
650
700nm
T%
10
Neutral
Density
8
6
4
UV Series
2
0
Super Cold
XND0006
ZND0006
T%
20
16
12
Others
8
4
0
86
Ordering Information
Order online: www.asahi-spectra.com E-mail: [email protected]
Neutral Density Filters
T%
50
Shortpass
XND00012
ZND00012
40
30
Longpass
20
10
0
400
500
550
600
650
700nm
400
450
500
550
600
650
700nm
400
450
500
550
600
650
700nm
Bandpass
XND00025
ZND00025
450
T%
100
80
Neutral
Density
60
40
20
UV Series
0
T%
100
Super Cold
XND00050
ZND00050
80
60
40
Others
20
0
Ordering Information
Order online: www.asahi-spectra.com E-mail: [email protected]
87