Description
BK7 Optical Mirror is a high-precision reflective component crafted from premium N-BK7 borosilicate crown glass, renowned for its exceptional optical homogeneity and minimal inclusion content. Engineered for versatility across visible and near-infrared (NIR) applications, it combines excellent mechanical strength with stable chemical properties. Available in custom diameters, thicknesses, and surface finishes, this mirror is ideal for both general optical setups and high-precision laser systems. It supports a wide range of coatings—including aluminum (Al), silver (Ag), gold (Au), and dielectric multi-layers—to meet specific wavelength and reflectivity requirements, ensuring reliable performance in diverse industrial, scientific, and commercial environments.
Factory Custom BK7 K9 Glass Optical Reflective Mirror
Specifications
| Diameter: | 25 mm |
|---|---|
| Thickness: | 2 mm |
| Substrate: | BK7 |
| Flatness: | lambda/4 |
| Single Or Dual Surface: | Dual |
| Ref. Index: | 1.5163 |
| Abbe Number: | 64.1 |
| Exp. Coefficient: | 7.1E-6 Per degree Celsius |
| Surface Quality: | 60-40 scratch-dig |
| Parallelism: | 30 arc min |
Got questions about specs? Use the inquiry form to ask.
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Features
- Ultra-Homogeneous Substrate: Manufactured from high-purity N-BK7 glass with minimal bubbles/impurities, ensuring low light scatter and consistent beam quality with a refractive index of ~1.5168 (587.6 nm)
- Broadband Transmission Compatibility: Optimized for visible/NIR wavelengths (350–2000 nm), making it a versatile base for coatings targeting specific spectral ranges
- Cost-Effective Precision: A budget-friendly alternative to fused silica mirrors, delivering industry-standard optical performance for non-extreme environment applications
- Superior Mechanical Durability: High scratch resistance and stable chemical properties (resistant to acids/alkalies) ensure long service life and low maintenance in industrial settings
Applications
- Laser Processing Systems: Core beam steering/folding components in fiber laser cutters, welders, engravers, and 3D printers (1064 nm, 532 nm, 355 nm wavelengths). Ideal for high-speed production lines requiring stable beam quality
- Machine Vision & Metrology: Precision beam redirection in barcode scanners, 3D vision sensors, and coordinate measuring machines (CMMs), ensuring sub-micron accuracy in quality control inspections
- Robotics & Automation: Compact mirrors for robotic vision systems (e.g., bin picking, object recognition) and laser rangefinders, enabling reliable operation in harsh industrial environments
- Display & Projection Technology: High-flatness mirrors in laser projectors, head-up displays (HUDs), and AR/VR devices, delivering crisp, color-accurate images with minimal distortion
- Spectroscopy & Analytical Instruments: Used in Raman, fluorescence, and FTIR spectrometers; gold-coated BK7 mirrors enhance IR signal strength for high-sensitivity material analysis
- Educational & Prototyping Labs: Standard teaching tools for optics courses, demonstrating reflection principles and beam control; ideal for rapid prototyping of custom optical systems
Frequently Asked Questions
What is the difference between BK7 and fused silica mirrors?
What coatings are available?
Can you customize sizes and shapes?
Got more questions? Use the RFQ form to ask the supplier directly.
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