Optical Grade Plano Convex Lenses for Beam Focusing & Magnification

Material Composition
These lenses are manufactured from high-purity optical-grade glass, such as BK7, N-BK7, or fused silica, chosen for their exceptional clarity and minimal impurities. Precision-ground and polished using advanced CNC machining, they feature a flat (plano) surface and a convex spherical surface. Optional anti-reflective (AR) coatings (e.g., MgF₂) are applied via vacuum deposition to enhance performance.

Key Properties

1. High Light Transmission: Achieves >99% transmittance (with AR coatings) across visible to near-infrared spectra, minimizing energy loss.

2. Low Thermal Expansion: Withstands temperature fluctuations (ΔT up to 300°C) without deformation.

3. Precision Surface Accuracy: λ/4 or better surface flatness ensures minimal wavefront distortion.

4. Low Dispersion: Reduces chromatic aberration for accurate color and beam fidelity.

Functional Benefits

• Beam Focusing: The convex surface converges light into a tight focal point, ideal for collimating divergent beams in lasers or LEDs.

• Magnification: Enlarges images in optical systems while maintaining sharpness and minimal distortion.

• Durability: Scratch-resistant and chemically inert, outperforming plastic lenses in harsh environments.

• Customizability: Available in diameters (5–300 mm), focal lengths, and coatings (UV/IR, broadband AR) for tailored solutions.

Applications

• Laser Systems: Collimating laser diodes, fiber optic coupling, and laser engraving/cutting machines.

• Imaging & Microscopy: Telescopes, microscopes, and projectors requiring high magnification and clarity.

• Medical Devices: Endoscopic imaging, ophthalmic diagnostics, and surgical laser tools.

• Industrial Automation: Barcode scanners, LiDAR, and optical sensors in robotics.

• Scientific Research: Spectroscopy, beam expanders, and optical experiments demanding precision.

**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.