Rectangular Continuously Variable Neutral Density Filters
Linear Density Variation:
- The optical density varies linearly across the longest dimension (length) of the filter, allowing for smooth and precise control over light attenuation.
Substrate Materials:
- BK7: Provides excellent performance across the 380-2000nm wavelength range.
- Fused Silica: Extends the usable range to 250-2500nm, covering UV, VIS, and IR spectra.
Optical Density Options:
- Four maximum optical densities are available: OD1, OD2, OD3, and OD4. This range offers versatility in managing light transmission for various applications.
Broad Wavelength Coverage:
- BK7 filters cover a transmission range from 380-2000nm.
- Fused Silica filters extend from 250-2500nm, accommodating a wide range of spectral requirements.
Applications: Industrial Imaging, Machine Vision, Spectroscopy, Laser Experiments, etc.
Rectangular Continuously Variable Neutral Density Filters (ND Filters) are specialized optical filters designed to provide precise control over light attenuation. Unlike homogeneous ND filters that offer even attenuation across their surface, these rectangular filters have optical densities that change linearly along their length. This design enables fine control over the attenuation by adjusting the position within the coated region.
Specifications:
| Substrate Materials | BK7, Fused Silica |
| Thickness Tolerance | +/-0.1mm |
| Parallelism | 3’ |
| Linearity | +/-5% |
| Error of Maximum OD | +/-5% |
| Surface Quality | 80/50 S/D |
| Design Wavelength Range | 380nm to 2000nm (BK7) 250nm to 2500nm (Fused Silica) |
Key Features:
1.Linear Density Variation:
- The optical density varies linearly across the longest dimension (length) of the filter, allowing for smooth and precise control over light attenuation.
2.Substrate Materials:
Available in two high-quality substrate materials:
- BK7: Provides excellent performance across the 380-2000nm wavelength range.
- Fused Silica: Extends the usable range to 250-2500nm, covering UV, VIS, and IR spectra.
5.Optical Density Options:
- Four maximum optical densities are available: OD1, OD2, OD3, and OD4. This range offers versatility in managing light transmission for various applications.
6.Broad Wavelength Coverage:
- BK7 filters cover a transmission range from 380-2000nm.
- Fused Silica filters extend from 250-2500nm, accommodating a wide range of spectral requirements.
Applications:
- Industrial Imaging: Ensures controlled illumination to prevent sensor overexposure, leading to high-quality imaging results.
- Machine Vision: Enhances the accuracy of vision systems by regulating the amount of light reaching the sensors, crucial for inspection and quality control.
- Spectroscopy: Allows precise control of light intensity to avoid detector saturation and to improve the dynamic range of measurements.
- Laser Experiments: Enables precise adjustment of laser power for various experiments, ensuring optimal performance and safety.
Kingwin Optics’ Rectangular Continuously Variable Neutral Density Filters are meticulously crafted to offer unparalleled control over light attenuation. Whether you require rapid ordering from stock or customized filters to meet your exact specifications, these filters ensure seamless integration into your optical experiments and applications. Trust Kingwin Optics to deliver exceptional light control and precision, elevating the performance and accuracy of your optical systems.
