The OPTOStokes ND65% is a high-stability light attenuation filter designed to reduce light intensity across a broad spectral range without altering the color balance of the source. By providing a constant 65% transmittance from 350nm to 1100nm, this filter is an essential tool for imaging systems and laser applications requiring precise exposure control.
Technical Specifications
| Parameter | Specification Value |
|---|---|
| Wavelength Range | 350nm to 1100nm |
| Average Transmittance | T = 65% |
| Optical Density (OD) | Approximately 0.18 |
| Thickness | 1.1mm |
| Surface Quality | 60/40 S/D |
| Material | Neutral Density Glass |
| Product ID | 20800679 |
Key Engineering Applications
Our ND65% filters are utilized in precision optics environments where subtle light reduction is critical:
Sensor Protection: Prevents detector saturation in CMOS/CCD cameras while maintaining full spectral data from UV to NIR.
Laser Power Tuning: Acts as a fixed attenuator for laser modules to ensure signal stability in low-power detection.
Optical Calibration: Used in spectrophotometry to verify linearity in the 350-1100nm range.
Machine Vision: Balances illumination in high-brightness industrial environments to reveal fine surface details.
Customization & OEM Capabilities
As a specialist in precision optics, OPTOStokes provides reliable OEM solutions for specific mechanical requirements. While the 1.1mm thickness is standard for rapid prototyping, we offer custom diameter cutting, CNC edge treatment, and specialized coatings. We ensure high batch-to-batch consistency and spectral flatness across the entire clear aperture.
Frequently Asked Questions
Q: Does this ND65% filter shift color or cause spectral distortion?
A: No. This filter is designed for neutral attenuation. It maintains a flat transmission curve across the 350-1100nm range, ensuring that the spectral integrity of your light source or image remains unchanged.
Inquiry & Delivery
Struggling with overexposure or long lead times for custom optics? OPTOStokes maintains stock for the 1.1mm ND65% series to support your R&D schedule. Contact our sales team for volume discounts or custom sizing: [email protected].
