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TECH SPECTM ABSORPTIVE NEUTRAL DENSITY FILTER
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These filters possess level spectral transmittance characteristics in the visible
region and attenuate light by absorption with minimal reflection.
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Specifications
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Dimensional Tolerance
Design Wavelength
Parallelism
Thickness
Flatness
Tg
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: ± 0.1 mm (25 mm Dia.)
± 0.2 mm (50 mm2)
: 400 nm - 700 nm
: < 0.02 mm
: 2.5mm ± 0.5 mm
: <=1 lambda per inch
: Transformation temperature
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Absorptive Neutral Density Filter Set
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25 mm diameter, 6 filter set.
Optical Density Values: 0.15, 0.3, 0.4, 0.6, 0.9, 2.5.
Wooden storage box with foam lining.
Stock Number: K55-222
Empty 1" Diameter Filter Case:
Designed to hold 8 1" filters up to 3mm thick.
Wooden storage box with foam lining.
Stock Number: K55-224
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ABSORPTIVE NEUTRAL DENSITY FILTERS – TECH SPECTM QUALITY
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Hoya
Glass |
O.D. |
Avg.
Transmission % |
Tg (°C) |
Refractive
Index (nd) |
Reflection
Factor (Pd) |
Size |
| 25mm |
50 x 50mm |
| ND-70 |
0.15 |
70 ± 5 |
470 |
1.500 |
0.923 |
K46-211 |
K46-217 |
| ND-50 |
0.3 |
50 ± 5 |
495 |
1.504 |
0.922 |
K46-212 |
K46-218 |
| ND-40 |
0.4 |
40 ± 4 |
525 |
1.504 |
0.922 |
K46-213 |
K46-219 |
| ND-25 |
0.6 |
25 ± 2.5 |
535 |
1.507 |
0.922 |
K46-214 |
K46-220 |
| ND-13 |
0.9 |
12.5 ± 2 |
535 |
1.510 |
0.922 |
K46-215 |
K46-221 |
| ND-0.3 |
2.5 |
0.3 ± 0.1 |
490 |
1.514 |
0.920 |
K46-216 |
K46-222 |
Our application engineers and technical staff will be happy to
help you with any further enquiries. Monday through Friday, 9 am to 6 pm,
Singapore Standard Time, call (65)-4409746 or email us anytime at
smart_sense@yahoo.com. We response within 24 hours.
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