Customized BK7 B270 Optical Glass Convex Dome Lens For Smart Devices

1. Glass Material:

   • N-BK7 & B270 Crown Glass:

     • N-BK7: Borosilicate crown glass with high transmission (350–2000 nm), low dispersion, and excellent thermal stability.

     • B270: Soda-lime crown glass with similar optical clarity (380–2500 nm), often used for cost-effective precision optics. Both materials prioritize homogeneity and low bubble/inclusion content.

2. Key Properties:

   • Dome Geometry: Convex curvature provides wide-angle light collection, minimizes spherical aberration, and protects underlying optics.

   • High Transmission: >90% light transmission in visible spectrum (400–700 nm) for BK7; B270 offers comparable clarity.

   • Thermal Resilience:

     • BK7: Low thermal expansion (3.3 × 10⁻⁶/K).

     • B270: Moderate thermal stability (8.5 × 10⁻⁶/K), suitable for controlled environments.

   • Surface Quality: Precision-polished surfaces (scratch-dig: 40-20 or better) reduce scatter and distortion.

   • Durability: Resists humidity, mild acids, and mechanical wear.

3. Primary Functions:

   • Focuses or collimates light in wide-angle optical systems.

   • Enhances light collection efficiency in imaging and sensing applications.

   • Protects sensitive components (e.g., sensors, LEDs) from environmental damage.

   • Corrects aberrations in compact optical assemblies.

4. Applications:

   • Imaging Systems: Surveillance cameras, drone optics, and fisheye lenses.

   • Lighting: LED collimation, automotive headlights, and stage lighting.

   • Sensors: LiDAR, motion detectors, and industrial inspection systems.

   • Medical Devices: Endoscope tips, dermatology tools, and diagnostic sensors.

   • Aerospace/Defense: Missile domes, cockpit displays, and thermal imaging windows.

   • Advantages Over Alternatives:

     • BK7: Superior thermal/chemical resistance vs. B270.

     • B270: Cost-effective for non-extreme environments.

     • Dome shape reduces need for additional protective optics.

5. Target Industries:

   • Consumer electronics (cameras, smart devices).

   • Automotive and aerospace engineering.

   • Industrial automation and robotics.

   • Medical technology and defense.

**Introduction**

Shanghai Longway Special Glass Co., Ltd. has been a professional supplier in the glass industry for over 20 years. With its expertise spanning across various fields, including optics, laser, imaging, and lighting etc., the company has established itself as a trusted partner for businesses worldwide. The company's commitment to providing high-quality glass products and services has earned it a reputation as a reliable supplier of choice among major corporations and small businesses alike.

**Our Team**

The team at Shanghai Longway Special Glass Co., Ltd. consists of professional experts with extensive experience in the field of glass manufacturing. These skilled technicians have honed their expertise through years of hands-on training and continuous education, ensuring that they remain up-to-date on the latest techniques and technologies.

**Our Capabilities**

Shanghai Longway Special Glass Co., Ltd.'s capabilities include:

* Cutting: Advanced cutting equipment allows for precise cuts in a variety of glass types.

* Grinding: High-speed grinding machines enable efficient surface preparation.

* Polishing: Automated polishing systems guarantee exceptional optical clarity.

* Molding: Sophisticated molding techniques permit the creation of intricate shapes and designs.

* Blowing: Expertise in blow-and-form processing enables the production of hollow glass products, such as bottles and jars.

* Tempering: Heat-treating equipment ensures that glass products meet or exceed industry standards for thermal shock resistance.

** Our Raw Materials**

The company offers a wide range of raw materials and processed glass products, normally including:

* Optical Glass: High-quality optical glass suitable for precision applications.

* Borosilicate Glass: Durable borosilicate glass ideal for laboratory equipment and medical devices.

* Quartz Glass: Pure quartz glass utilized in various industries, including electronics and optics.

* Float Glass: Large sheets of float glass suitable for architectural applications and flat glass products.

* Soda Lime Glass: Economical soda lime glass used for a wide range of industrial and commercial applications.

**Our Quality Control Process**

At Shanghai Longway Special Glass Co., Ltd., quality control is an integral part of the manufacturing process. Each product undergoes rigorous inspection to ensure that it meets or exceeds customer expectations. This commitment to excellence has earned the company a reputation as a trusted supplier of high-quality glass products.

**Our Commitment to Excellence**

At Shanghai Longway Special Glass Co., Ltd., we are committed to delivering exceptional quality glass products that meet or exceed customer expectations. Our team of professional experts is dedicated to providing expert advice and assistance in selecting the most suitable materials and processing techniques for specific needs. We take pride in our state-of-the-art facility, equipped with cutting-edge machinery and technology, ensuring that every product meets the highest standards.

**Why Choose Us?**

Shanghai Longway Special Glass Co., Ltd. is a trusted supplier of high-quality glass products, committed to delivering exceptional quality, innovation, and customer satisfaction. With over 20 years of experience and expertise spanning across various fields, we are well-positioned to meet the evolving needs of businesses worldwide. We look forward to serving your needs and meeting your expectations.