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Shanghai Longway Special Glass Co., Ltd.
Verified Supplier
1 Years
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1 Years
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| Brand Name : | LONGWAY |
| Model Number : | LW160920112 |
| Certification : | ISO9001 |
| Price : | Negotiation |
| Payment Terms : | T/T,Western Union |
| Supply Ability : | 10000 pcs per month |
| Delivery Time : | 25 days |
Glass Material:
N-BK7 Optical Glass: A high-quality, low-dispersion borosilicate crown glass (SiO₂ + B₂O₃), widely used in precision optics due to its exceptional clarity, homogeneity, and thermal stability. Ideal for visible to near-infrared (350–2000 nm) applications.
Key Properties:
Broadband Anti-Reflective (BBAR) Coating: Minimizes reflection losses (<0.5% per surface) across a wide spectral range (400–700 nm), enhancing light transmission (up to 99.5%) and image contrast.
Plano-Convex Design: Flat (plano) and convex surfaces enable collimated light focusing with minimal spherical aberration, critical for precision aiming systems.
Surface Quality: Precision-polished surfaces (scratch-dig: 40-20) ensure minimal scatter and distortion.
Thermal Stability: Low coefficient of thermal expansion (3.3 × 10⁻⁶/K) ensures performance consistency in varying temperatures.
Primary Functions:
Focuses collimated light into a precise spot or beam.
Corrects optical aberrations in aiming devices.
Enhances image resolution and targeting accuracy in low-light conditions.
Applications:
Precision Aiming Optics: Rifle scopes, red dot sights, telescopic sights, and laser rangefinders.
Laser Systems: Beam collimation in industrial lasers and medical devices.
Imaging Systems: Microscopes, telescopes, and surveillance cameras.
Industrial Metrology: Alignment tools and precision measurement instruments.
Technical Specifications:
Diameter: Customizable (common sizes: 5–50 mm).
Focal Length: Adjustable based on curvature.
Coating Durability: MIL-C-675C standard for scratch and environmental resistance.
Advantages Over Alternatives:
Superior transmission and reduced glare compared to uncoated lenses.
N-BK7 offers better cost-performance balance than specialty glasses (e.g., fused silica).
Target Industries:
Defense and military (firearm optics).
Hunting and sports optics.
Biomedical imaging and photonics.
| Name | optical Plano Convex Lens |
| Material | Bk-7,Pyrex,Fused Silica |
| Diameter Tolerance | +0/-0.2 mm |
| Thickness Tolerance | +/-0.2 mm |
| Cler Aperture | over 90% |
| Surface Quality | 80/50~10/5 scratch and dig |
| Transmission | above 92% |
| Chamfer | 0.1-0.3 mm x 45 degree |
| Coating | available |
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