Optical Component
Optical Filter
  • Can be used as an optical filter to adjust light intensity and color temperature.
  • By applying various coatings to various substrates, a variety of optical properties can be realized, either by the substrate alone or in combination with filters with optical properties of other functions.


  • Digital Camera
  • Digital Camera for Broadcast / Cinema

ND Filter


  • ND filters are available in various Optical Densities, and the light dimming rate is constant over a wide range of wavelengths.
  • The low reflective design takes reflection into consideration, and ghosting, etc., is prevented by the coating.
  • Glass type ND filters are also available.

Characteristics Example

Low Reflection ND Filter Transmittance

Low Reflection ND Filter Transmittance

Low Reflection ND Filter Reflectance

Low Reflection ND Filter  Reflectance

Specifications Example

External Dimensions Max. 60mm×60mm
External Dimensions Tolerance ±0.1mm
Substrate Materials Optical Clear Glass (N-BK7, etc.)
Thickness Dimenson 0.5mm±0.03mm
Coating OD0.6   a-Face OD0.3 Low Reflection ND Coatingb-Face OD0.3 Low Reflection ND Coating
OD1.2   a-Face OD0.6 Low Reflection ND Coatingb-Face OD0.6 Low Reflection ND Coating
OD2.1   a-Face OD1.05 Low Reflection ND Coatingb-Face OD1.05 Low Reflection ND Coating
Transmittance OD0.6   21.5%≦T≦28.0%  @400~700nm
OD1.2   4.75%≦T≦7.75%  @400~700nm
OD2.1   0.58%≦T≦0.93%  @400~700nm
Surface Reflectance OD0.6   Rmax≦2.0%、Ravg≦1.0%  @400~700nm
OD1.2   Rmax≦2.0%、Ravg≦1.0%  @400~700nm
OD2.1   Rmax≦2.0%、Ravg≦1.0%  @400~700nm
Specifications Example
Specifications Example

Contuct Us

*Please inquire for special specifications.

Warranty Items

Test items include temperature, humidity, impact resistance, heat resistance, etc. for the environmental and mechanical properties of optical components.
We set test items and conditions for each component and guarantee the properties of the component. However, warranty items and conditions vary depending on the shape, properties, application, and environment of the optical component.

Subjected to High Temperature 85℃ 1000H
Subjected to Low Temperature -40℃ 1000H
Subjected to High Temperature and High Humidity 60℃90%RH~95%RH 1000H
Heat Shock -40℃ 2H 、85℃ 2H、100℃/H 10 Cycles
Subjected to Thermal Shock -40℃/85℃ 30 Minutes Each 100 Cycles
Coating Adhesion Strength Cellophane tape (LP-18) is applied to the component, rubbed with the fingers three times, and then quickly pulled off in a vertical direction ten times
Abrasion Resistance The vapor-deposited surface is pressed with lens-cleaning paper (DUSPER K-3) with a pressing pressure of 4.9 N/cm2 (500 gf/cm2)
1 round-trip/second continuous, round-trip distance 10 mm, 100 round-trips
Solvent Resistance Test Using lens-cleaning paper (DUSPEP K-3) in solvents such as IPA, acetone, ethanol, etc. with 2.94 N (300 gf)
1 round-trip/second continuous, round-trip distance 10 mm, 100 round-trips