

In today’s fast-moving world of optical technology, not all glass is created equal. If you’re working with advanced instruments, scientific research, or medical diagnostics, SCHOTT B270® might just be the glass you’re looking for.This ultra-clear, eco-friendly optical glass has been the go-to choice for labs, precision equipment makers, and high-tech industries worldwide. But what exactly sets B270® apart from standard float glass? And how can you make the most of it in your application?Let’s break it down.
What Is B270® Optical Glass?
- B270® is a premium soda-lime optical glass developed by SCHOTT (Germany) — engineered for high transmission, excellent polishability, and a neutral, colorless appearance. It’s free from heavy metals like lead and arsenic, and fully compliant with RoHS and REACH standards.
- It’s a cleaner, clearer, and more precise glass than your average sheet of float glass.
Key Performance Highlights
Feature | B270® Specification |
Visible Light Transmission | ≥91% @ 3mm (400–700nm) |
Refractive Index (nD) | 1.5230 |
Abbe Number | 58.5 (Low Dispersion) |
Thermal Expansion | 9.4 ×10⁻⁶/K (20–300°C) |
Surface Quality | Ideal for AR/IR/Metal coatings |
Processing Compatibility | CNC cutting, polishing, bending |
Eco Compliance | Lead/arsenic-free, RoHS/REACH OK |
Whether you need precise light transmission, tight tolerances, or coating stability, B270® is built to deliver.
Where You’ll See B270® in Action
Here’s how industries are using B270® today:
Precision Optical Windows & Covers
- Used in spectrometers, colorimeters, microscopes — delivering distortion-free observation.
Camera & Vision System Protection
- Common in industrial and scientific imaging. Excellent AR coating compatibility keeps images sharp and clear.
Laser System Windows
- High-transmission protection for laser rangefinders and analyzers. Blocks stray light while letting the signal through.
Medical Diagnostic Devices
- Acts as a protective and optical window in life science and IVD platforms.
B270® vs Other Glass Materials — A Quick Comparison
Glass Type | Refractive Index | Abbe # | Thermal Expansion | Transmission | Eco-Safe | Cost |
B270® | 1.523 | 58.5 | Medium | Very High | ✅ | Medium |
D263T® | 1.52 | 53.2 | Low-Med | High | ✅ | Med-High |
BOROFLOAT® 33 | 1.47 | 64 | Low | Med-High | ✅ | Medium |
Standard Float | ~1.52 | ~55 | Medium | Low–Med | ❌ | Low |
Conclusion: For projects where clarity, environmental safety, processability, and value all matter, B270® clearly beats ordinary float glass.

How We Help You Customize B270® for Your Needs
At LIGHTING GLASS (aka TIHOT OPTICS), we provide full-stack B270® services — from raw material to finished components. Here’s what we offer:
- Raw Glass Supply: In-stock thicknesses from 0.5–10mm. Low MOQ available.
- Custom Processing: CNC cutting, grinding, polishing, chamfering, bending, ultrasonic cleaning, coating.
- Cleanroom Packaging: Vacuum-sealed with anti-static trays, ready for lab use.
- Fast Turnaround: Samples in 3–7 days. Bulk shipments with export documents.
- Quality Assurance: MIL-PRF-13830B surface standards, RoHS, inspection report on request.
Final Thoughts
B270® isn’t just another piece of glass. It’s the backbone of optical clarity, a reliable material that brings consistency and performance to demanding fields — from vision systems to diagnostics, from analysis to display.
So if you’re in the market for an optical glass that offers high transmission, eco-friendliness, excellent machinability, and dependable quality — B270® should be at the top of your list.
Contact Us
Website: https://opticalglass.net/
Email: sales@opticalglass.net