Shanghai Longway Special Glass Co., Ltd.
                                                                                                           
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Optical Grade Plano Convex Lenses for Beam Focusing & Magnification

Price Negotiable
Price: NEGOTIATION
MOQ: 500 pieces
Delivery Time: Negotiable
Brand: LONGWAY
Product Description



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.

Material Optical Glass, Fused Silica, quartz
Diameter Tolerance +0/-0.15 mm
Thickness Tolerance +/-0.15 mm
Cler Aperture over 90%
Surface Quality 80/50~10/5 scratch and dig
Transmission above 92%
Chamfer 0.1-0.5 mm x 45 degree
Focal Length Tolerance +/-1.5%
Back Focal Length Tolerance +/-1.5%
Coating available
Usage optical system, photographic sysem, Lighting system, e.g. laser, camera, monitor, projector, magnifier etc.




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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Shanghai Longway Special Glass Co., Ltd.
Location Rm. 2111, Bldg. A, Tomson Center, No. 188, Zhangyang Rd., Shanghai, China
Contact Person Dai

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