Home Products Optics Filters Absorptive Neutral Density Filters
Absorptive Neutral Density Filters

◆Features

Utilizes ZAB10 optical glass (a type of heavy flint glass) with high refractive index and high dispersion properties, suitable for precision optical systems.

High-precision surface figure control and strict material specifications

Suitable for optical filtering applications in the infrared band, with outstanding performance especially in military, security, and industrial inspection fields.

◆Common Specifications

Material

ZAB10

Coating

AR coating @630-670nm

Transmittance

21.87%~28.8%

Surface Quality

40-20

Surface Flatness

0.5λ@633nm

◆Applications

Fluorescence microscopy systems

Laser protection optical components

Spectrometer beam-splitting elements

Precision imaging optical systems


Dimensional requirements: The outer diameter and thickness shall be determined based on the spatial layout of the optical system and the beam size.

Mounting configuration: All circular lenses from Mloptic can be mounted on standard lens sleeves, fixed lens mounts, and various coaxial mounting plates.


Coating requirements: The coating quality must comply with general specifications for optical coatings. Scratches or contamination on the coating should be avoided as they may affect the anti-reflection performance.

Cleaning taboos: Avoid cleaning with corrosive solvents such as strong acids and alkalis, as they may damage the anti-reflection coating and glass substrate. It is recommended to use optical-specific cleaning agents (e.g., isopropanol, diethyl ether) and gently wipe with soft lint-free cloths or lens paper to prevent surface scratches.

Transportation and storage: Optical surfaces must be strictly protected during transportation. When packaging, direct contact between protective films and optical surfaces is prohibited to prevent contamination by foreign substances or scratches.


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Absorptive Neutral Density Filters

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