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Filters


Reflective Neutral Density Filters
HO-NDR Series
Optical density ranges from 0.1 to 6.0
Available in Mounted or Unmounted versions
Prices are exclusive of taxes and other charges.

Reflective Neutral Density Filters attenuate the light beam by a combination of reflection and absorption. Holmarc’s reflective neutral density filters are made from BK7 or equivalent glass substrate with hard Inconel coating and are used to attenuate the intensity over a broad spectral region (350 - 1100 nm). Holmarc offers reflective neutral density filters in unmounted and mounted options. Optical density of the reflective neutral density filter is related to transmission by the following equation;


OD    =    log10    ( 1 / T ),  or  T    =  10-OD

d>
Model No. Diameter
D ( mm )
Optical Density
(OD)
Price
Unmounted Mounted Unmounted Mounted
HO-NDR-12.5-0.1 HO-NDR-12.5M-0.1 12.5 0.1
HO-NDR-12.5-0.2 HO-NDR-12.5M-0.2 12.5 0.2
HO-NDR-12.5-0.3 HO-NDR-12.5M-0.3 12.5 0.3
HO-NDR-12.5-0.4 HO-NDR-12.5M-0.4 12.5 0.4
HO-NDR-12.5-0.5 HO-NDR-12.5M-0.5 12.5 0.5
HO-NDR-12.5-0.6 HO-NDR-12.5M-0.6 12.5 0.6
HO-NDR-12.5-1.0 HO-NDR-12.5M-1.0 12.5 1.0
HO-NDR-12.5-1.3 HO-NDR-12.5M-1.3 12.5 1.3
HO-NDRA-12.5-2.0 HO-NDR-12.5M-2.0 12.5 2.0
HO-NDR-12.5-3.0 HO-NDR-12.5M-3.0 12.5 3.0
HO-NDR-12.5-4.0 HO-NDR-12.5M-4.0 12.5 4.0
HO-NDR-12.5-5.0 HO-NDR-12.5M-5.0 12.5 5.0
HO-NDR-12.5-6.0 HO-NDR-12.5M-6.0 12.5 6.0
HO-NDR-25-0.1 HO-NDR-25M-0.1 25 0.1
HO-NDR-25-0.2 HO-NDR-25M-0.2 25 0.2
HO-NDR-25-0.3 HO-NDR-25M-0.3 25 0.3
HO-NDR-25-0.4 HO-NDR-25M-0.4 25 0.4
HO-NDR-25-0.5 HO-NDR-25M-0.5 25 0.5
HO-NDR-25-0.6 HO-NDR-25M-0.6 25 0.6
HO-NDR-25-1.0 HO-NDR-25M-1.0 25 1.0
HO-NDR-25-1.3 HO-NDR-25M-1.3 25 1.3
HO-NDR-25-2.0 HO-NDR-25M-2.0 25 2.0
HO-NDR-25-3.0 HO-NDR-25M-3.0 25 3.0
HO-NDR-25-4.0 HO-NDR-25M-4.0 25 4.0
HO-NDR-25-5.0 HO-NDR-25M-5.0 25 5.0
HO-NDR-25-6.0 HO-NDR-25M-6.0 25 6.0
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Established in 1993, Holmarc Opto-Mechatronics Ltd manufactures variety of scientific and engineering instruments for research, industry and education.

ISO 9001:2015 Made in INDIA

CIN : L33125KL1993PLC006984
GST No : 32AAACH9492C1ZQ

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   +91 920-719-7772 / 6 / 1
   sales@holmarc.com
   Mon - Sat : 9 am to 5 pm
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