ND80% Neutral Density Filter: Precise 80% Light Attenuation (400-1100 nm)
The OPTOStokes **ND80% Neutral Density Filter** is a high-precision component designed to attenuate light by exactly 20%, allowing **80% transmission** across a critical **wide spectral band**. Its primary function is to reduce the intensity of incident light without altering its spectral color balance or image fidelity, making it essential for accurate measurements and consistent industrial imaging.
Critical Technical Specifications
This neutral density filters is engineered for exceptional neutrality and stability across the VIS-NIR spectrum.
| Parameter | Specification |
|---|---|
| Nominal Transmission (T) | 80% T (Optical Density OD 0.1) |
| Spectral Range | 400 nm - 1100 nm (Wideband VIS-NIR) |
| Transmission Tolerance | ±2% (T) across the range |
| Substrate Thickness | 1.1 mm (Thin Substrate) |
| Surface Quality (S/D) | 60/40 scratch-dig |
| Part Number | 0800355 |
Precision Control of Light Intensity
The **ND80% Filter** (Part #0800355) offers highly controlled, uniform light attenuation, a key feature for professional applications:
- Spectral Neutrality: Provides flat transmission across the **400 nm to 1100 nm** range, ensuring **zero color shift** or spectral bias in the light source, vital for accurate color reproduction or spectral analysis.
- High Precision Tolerance: The tight **±2% transmission tolerance** ensures that the light intensity adjustment is predictable and consistent across all units and wavelengths, critical for repeatable calibration.
- Compact Design: The **1.1 mm thin substrate** balances high durability with a minimal footprint, simplifying integration into compact camera systems, filter wheels, or multi-element optical assemblies.
Core Applications
This filter is broadly used wherever precise, spectrally neutral light reduction is required:
- Laser Systems and Testing: Safely **reduces high beam intensity** to levels compatible with sensitive sensors, detectors, or test equipment in the VIS-NIR range for calibration and component testing.
- Industrial and Machine Vision Filters: Stabilizes light input for Quality Assurance (QA) systems on bright production lines, ensuring consistent image exposure and reliable quality checks regardless of light fluctuations.
- Scientific Imaging: Used in microscopy and spectroscopy to adjust light intensity for optimal detector performance without changing illumination quality.
OPTOStokes Stock and Custom ND Solutions
OPTOStokes stocks the **ND80% filter** (Part #0800355) in standard sizes for immediate shipment. We are committed to predictable quality and quick delivery to meet your urgent production needs.
For unique integration challenges, we offer **custom solutions** for this light attenuation filter: custom shapes (circular, square, irregular cuts), alternative optical densities (e.g., ND50% or ND20%), and optional mounting solutions. Our precision manufacturing ensures that the tight **±2% attenuation tolerance** is maintained across all custom sizes.
Need precise light intensity adjustment or a custom ND solution?
Contact our optical experts to secure the right filter for your system or discuss your unique specifications.
Email: sales@optofilters.com | Visit: www.optokens.com
