Site Search
Please enter a keyword
- Crystal Unit
- Crystal Oscillator
- Frequency Synthesizer
- Signal Generator
- Millimeter-Wave Converter
- Synthetic Quartz Crystal
- Optical Component
- QCM Sensor
- Outgas Analysis System
- Ultrasound Probe (Transducer)
- SAW Devices (Manufactured by NDK SAW devices Co., Ltd.)
-
Space
-
Infrastructure / Industrial Equipment
-
Automotive
-
Mobile
-
AV / OA, Medical, Healthcare, Household Appliance
-
Search from Connectivity Standards
Product Search
- 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.
Applications
- Digital Camera
- Digital Camera for Broadcast / Cinema
ND Filter
Features
- 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 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 |
*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 |
Order/InquiryOptical Component