Sapphire Windows | Precision Optical Windows from Bote Optics Singapore
Bote Optics is a Singapore-based manufacturer specializing in high-precision optical components, including sapphire windows for UV, visible, and infrared applications. With over 15 years of experience, we offer custom solutions with fast lead times and strict quality control.
💎 What Are Sapphire Windows?
Sapphire windows are highly durable optical elements made from synthetic sapphire (Al₂O₃). With excellent transmission from 150 nm to 5.5 μm, they are ideal for harsh environments, high-pressure systems, and precision optics.
Our sapphire windows combine outstanding mechanical strength, chemical resistance, and thermal stability, making them suitable for critical applications across industries.
Why Choose Bote Optics?
At Bote Optics, quality is our promise. Backed by industry-leading metrology tools—including ZYGO interferometers, Agilent spectrophotometers, and Trioptics MTF testers—we ensure every sapphire window meets the highest optical and surface precision standards.
Our team of 100+ professionals, including a dedicated R&D group of PhDs and Masters in optics, brings deep technical expertise and innovation to every project. Based in Singapore, we offer fast, responsive support and global delivery.
With advanced testing equipment and a passionate engineering team, Bote Optics is your trusted partner for high-performance custom optical components.
✅ Key Advantages of Sapphire Windows
| Property | Sapphire Windows |
|---|---|
| Hardness (Mohs scale) | 9 – extremely scratch-resistant |
| Transmission Range | 150 nm – 5.5 μm (UV to IR) |
| Thermal Resistance | Up to 2000°C in vacuum |
| Chemical Resistance | Excellent – stable in acids and alkalis |
| Strength & Durability | Ideal for extreme conditions |
| Optical Quality | High flatness, low surface roughness |
🛠️ Custom Sapphire Windows – Built to Your Specs
At Bote Optics, we understand every project is unique. That’s why we offer fully customizable sapphire windows tailored to your optical, mechanical, and coating requirements.
| Specification | Custom Options |
|---|---|
| Diameter | 3 mm to 300 mm |
| Thickness | 0.2 mm to 25 mm |
| Shape | Round, square, rectangle, elliptical, or custom |
| Surface Quality | Up to 10-5 scratch/dig (MIL-PRF-13830B) |
| Flatness | Standard λ/4, custom up to λ/10 |
| Coating Options | AR, BBAR, DLC, custom wavelength coatings |
🔧 Need help with design? Our engineers can support your drawing or develop one based on your optical system.
🌐 Local Manufacturing – Sapphire Windows in Singapore
Based in Singapore, we serve local and global markets with:
- Fast lead times
- High consistency
- Short supply chains
- Responsive local support
We proudly support customers in Singapore, Southeast Asia, Europe, and the USA with tailored optical solutions.
🌈 Sapphire Window Optical Transmission
✔️ Sapphire IR Transmission
High transparency in the infrared range up to 5.5 μm, ideal for:
- Thermal imaging
- IR detectors
- Laser systems
✔️ Sapphire UV Transmission
Superior UV performance, transmitting down to 150 nm, suitable for:
- UV curing systems
- Analytical instruments
- Semiconductor inspection
🔍 AR-Coated Sapphire Windows
We apply anti-reflective (AR) coatings to enhance performance across UV, visible, and IR ranges. Choose from standard or custom wavelengths:
| Coating Type | Wavelength Range |
|---|---|
| UV AR | 250 – 400 nm |
| VIS AR | 400 – 700 nm |
| IR AR | 1.5 – 5 μm |
| BBAR | Custom broadband range |
AR coatings can be applied on single or both sides.
🔭 Large Sapphire Windows
For defense, aerospace, or large optics systems, we manufacture large sapphire windows with:
- Up to 300 mm diameter
- High flatness and uniformity
- Precision edges and chamfers
Ideal for:
- Pressure windows
- Optical domes
- Environmental sensor enclosures
🔬 Sapphire Optical Lenses & Assemblies
We also offer:
- Sapphire lenses (plano-convex, meniscus, etc.)
- Domes, prisms, and optical assemblies
- Custom mounting and bonding services
All components are inspected in our quality lab using interferometers, spectrometers, and CMM.
🧼 Sapphire Window Cleaning Guide
Sapphire is hard, but coatings are delicate. Proper care matters.
- Blow off dust with clean air or nitrogen.
- Use soft, lint-free cloth with isopropyl alcohol.
- Avoid strong chemicals and abrasive cloths.
- Store in dry, clean conditions.
🌟 What Customers Say
“Bote’s sapphire optics are extremely well-polished and clean. Perfect fit for our IR lens design.”
— Optical Designer, USA
“Reliable support and quick delivery in Singapore. Custom specs were 100% accurate.”
— Engineering Buyer, Singapore
📦 Sapphire Window HS Code
For international shipping, use the following customs code:
- HS Code: 90019090
“Other optical elements of any material, unmounted.”
We provide CO, invoice, packing list, and documentation for export compliance.
📞 Contact Bote Optics
Looking for reliable sapphire window suppliers in Singapore or globally?
📍 Bote Optics Pte. Ltd.
🌐 Website: www.bote.com.sg
📧 Email: [email protected]
📞 Phone: +65-8700-3511
📦 Shipping worldwide
❓ FAQ – Sapphire Windows
Q: Can I get a quote for a custom sapphire window?
A: Yes! Just send us your drawing or required specs and we’ll respond within 24 hours.
Q: Do you offer fast delivery in Singapore?
A: For in-stock items: 3–5 days. Custom parts: typically 2–3 weeks.
Q: Are your windows suitable for IR and UV systems?
A: Yes, our sapphire windows offer excellent UV and IR transmission with optional AR coatings.
Q: What industries do you serve?
A: Defense, laser, biomedical, aerospace, semiconductor, and scientific R&D.
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Ready to Start?
Bote Optics is your trusted partner in precision sapphire window manufacturing. Contact us today for a fast quote and professional support.