METICULAB
Variable Neutral Density ND Filter 190nm-1500nm Linear/Circular Gradient for Laser Attenuation | METICULAB
Variable Neutral Density ND Filter 190nm-1500nm Linear/Circular Gradient for Laser Attenuation | METICULAB
Variable Neutral Density ND Filter
190nm–1500nm · Linear / Circular / Stepped / Radial Gradient
For Laser Attenuation, Semiconductor Metrology & Optical Instrumentation
Ultra-Wide 190–1500nm
Covers UV, visible & NIR in one filter series.
Attenuates Without Spectrum Change
Adjusts intensity — preserves spectral distribution.
4 Gradient Patterns
Stepped · Radial · Circular · Gaussian.
Advanced Magnetron Sputtering
Durable Ni80Cr20 coating for consistent performance.
Full Customization
Wavelength · Size · Substrate · OD value.
R&D-Friendly MOQ
10-piece minimum for prototype validation.
Product Description
The METICULAB Variable Neutral Density (ND) Filter series delivers precise, continuous light attenuation across a broad spectral range — from the deep UV at 190nm through visible and into the NIR at 1500nm — without altering spectral distribution. Designed for semiconductor metrology, laser systems, and optical instrumentation, these filters are manufactured using advanced magnetron sputtering technology for superior spectral neutrality and long-term durability.
Whether you need to stabilize laser power, calibrate spectrophotometers, or control light intensity in precision measurement systems, METICULAB ND filters deliver uniform, predictable performance across the full wavelength range.
Core Feature: "Adjusts intensity without altering spectrum" — critical for applications where spectral integrity matters.
Gradient Patterns
Stepped
Discrete attenuation steps for multi-level control.
Radial
Annular attenuation from center to edge.
Circular
Rotational attenuation for dynamic adjustment.
Gaussian
Smooth, bell-shaped attenuation profile.
Applications
- Semiconductor wafer inspection and metrology
- Laser power stabilization and control
- Optical test and measurement instruments
- Spectrophotometer calibration
- Research and development laboratories
- High-end lighting and projection systems
Specifications
| Wavelength Range | 190nm – 1500nm |
| Optical Density (OD) | Customizable (0.04 – 4.0) |
| Transmittance | Customizable (0.1% – 92%) |
| Substrate Material | Fused Silica / BK7 / Optical Glass (Custom) |
| Coating | Ni80Cr20 / Metal Chrome (Magnetron Sputtering) |
| Gradient Patterns | Stepped / Radial / Circular / Gaussian |
| Surface Quality | 60/40, 40/20 (S/D) or better |
| Size | Customized (Round / Square) |
| MOQ | 10 pieces |
Customization & Support
At METICULAB, we understand that every optical system has unique requirements. We offer full OEM/ODM customization including center wavelength, bandwidth, size, substrate material (BK7, Fused Silica, Quartz, Metal), and reflectance/transmittance specifications. Our technical team is available to provide design consultation and application support.
Why METICULAB?
- R&D-Friendly MOQ — as low as 10 pieces for prototype testing
- Full customization for complex engineering requirements
- 100% spectral performance verification before shipment
- Quality issues covered by replacement guarantee
- Technical support for integration and application optimization
- Global shipping via DHL, FedEx, UPS
Frequently Asked Questions
Q1: What coating technology do you use?
A: We utilize ion-beam reactive sputtering and precision thin-film deposition processes, providing excellent thermal stability and spectral accuracy suitable for demanding semiconductor and laser applications.
Q2: Can I customize the center wavelength and bandwidth?
A: Yes. We offer full customization for i-line, 190nm, 254nm, 308nm, and other specific wavelengths based on your optical system design requirements.
Q3: Do your ND filters affect the spectral distribution?
A: No. Our ND filters are designed to attenuate intensity while preserving the original spectral distribution — "adjusts intensity without altering spectrum."
Q4: What is your MOQ? Can I order a small quantity for testing?
A: Yes. Our standard MOQ is 10 pieces for optical filters, supporting pilot runs and prototype validation. For R&D purposes, we can accommodate smaller quantities upon request.
Q5: What substrate materials do you offer?
A: We offer BK7, Fused Silica, Quartz, and Optical Glass. Substrate selection depends on your wavelength range and application. We recommend Fused Silica for UV applications (down to 190nm).
Q6: How do you ensure product quality?
A: Every batch undergoes independent spectral performance verification before shipment. We also provide a replacement guarantee for any quality issues — zero-risk sourcing.
Q7: Do you provide design support for custom optical systems?
A: Yes. We offer technical consultation and design support, helping you select or customize the right optical components based on your specific application. Our team can work from your drawings or specifications.
Q8: What is your typical lead time?
A: Standard items are typically shipped within 7-15 working days. Custom orders require 15-25 working days after drawing confirmation, depending on complexity.
METICULAB
Precision Lab Solutions
📧 choikyuc@gmail.com / info@meticulab.net
📞 WhatsApp & KakaoTalk: +82-10-3988-4813
🌐 www.meticulab.net
