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SND
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For adjusting the transmitting light at equal intervals of optical density. Fit for densitometer and colorimeter calibration use.

◦Possible to visually select and use 11 steps of optical density on one single plate.
◦The chrome thin coating applied is design to adjust the laser spot power.
◦The optical density is shows only minimal change across the visible wavelength range.

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Technical Data
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Guide

▶Please refer to here for Wavelength Characteristic Data (Reference Data, EXCEL file format).

Attention

▶The uniformity of the transmitted light is limited to 4.6mm × 2.5mm beam size, please use for 3mm diameter beam size or below.
▶The transmittance changes with a logarithm for quantity of movement. It is not a proportional movement.
▶Can not be used with high energy pulsed laser.

Common Specifications
MaterialSoda Lime Glass
Surface flatnessBoth side: glossy surface (no polishing)
CoatingChrome (Cr)
Wavelength Range400 - 700nm
Transmittance10 − 91.2% (Divided by 11 step)
Surface Quality (Scratch-Dig)80-50
Outline Drawing

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Schematic

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Optical Density (Reference data)

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OD: Optical density
■Position and relation of transmittance

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OD: Optical density

Part Number

Catalog PDF

dxf

STP

IGS

SAT

Zemax

SND-12

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SND-12

Reflective Stepping type Variable ND Filter

RoHS  

¥50,000

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