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China factory - Shanghai Longway Special Glass Co., Ltd.

Shanghai Longway Special Glass Co., Ltd.

  • China,Shanghai ,Shanghai
  • Verified Supplier

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China B270 BK7 Glass Optical Plano Lenses for Consumer Electronics
China B270 BK7 Glass Optical Plano Lenses for Consumer Electronics

  1. China B270 BK7 Glass Optical Plano Lenses for Consumer Electronics
  2. China B270 BK7 Glass Optical Plano Lenses for Consumer Electronics
  3. China B270 BK7 Glass Optical Plano Lenses for Consumer Electronics
  4. China B270 BK7 Glass Optical Plano Lenses for Consumer Electronics

B270 BK7 Glass Optical Plano Lenses for Consumer Electronics

  1. MOQ: 800 pieces
  2. Price: Negotiation
  3. Get Latest Price
Payment Terms T/T,Western Union,D/P
Supply Ability 35000 Piece/ Month
Packaging Details electrolytic paper,foam,carton
Item Optical Plano Convex Lens
Structure Plano-convex
Surface quality 60/40
Transmission over 92%
Coating AR coating
Processing grinding&polishing
Application Optics and lighting
OEM available
Brand Name LONGWAY
Model Number LW1609208509
Certification ISO9001
Place of Origin Shanghai, China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms T/T,Western Union,D/P Supply Ability 35000 Piece/ Month
Packaging Details electrolytic paper,foam,carton Item Optical Plano Convex Lens
Structure Plano-convex Surface quality 60/40
Transmission over 92% Coating AR coating
Processing grinding&polishing Application Optics and lighting
OEM available Brand Name LONGWAY
Model Number LW1609208509 Certification ISO9001
Place of Origin Shanghai, China
High Light B270 BK7 optical Glass Optical Plano LensesOptical Lenses for Consumer Electronics



B270 BK7 Glass Optical Plano Lenses for Consumer Electronics 


1. Material

  • Core Substrate: Precision-cut optical-grade glass – B270® superwhite crown glass (cost-effective, high clarity) and BK7 borosilicate glass (superior homogeneity, low bubbles).

  • Coatings: Optional AR (Anti-Reflective), IR cut, or hard coatings for enhanced performance.


2. Key Properties

  • Surface Quality: λ/2 flatness tolerance, 60-40 scratch-dig standard (80-50 optional).

  • Transmission: >91% (B270) and >92% (BK7) across 400–700nm visible spectrum.

  • Thermal Stability: BK7: Low CTE (7.1 × 10⁻⁶/K); B270: Higher thermal expansion but lower cost.

  • Durability: Mohs hardness 6–7 (scratch-resistant), chemical-resistant surfaces.

  • Precision: Tight thickness (±0.02mm), diameter (±0.05mm), and parallelism (<5 arcmin) control.


3. Primary Function

  • Light Transmission: Maximizes undistorted light passage for sensors/displays.

  • Protective Barrier: Shields sensitive electronics from dust, moisture, and physical damage.

  • Beam Splitting/Filtering: Acts as substrate for coated optics (e.g., dichroic filters).

  • Optical Reference: Provides flat windows for interferometry or alignment.


4. Critical Applications

  • Smartphones/Tablets:

    • Camera lens cover glass

    • Proximity/ambient light sensor windows

    • Fingerprint scanner covers

  • Wearables:

    • AR/VR headset lenses

    • Smartwatch health sensors

  • Imaging Devices:

    • Barcode scanner windows

    • DSLR/mirrorless filter mounts

  • Home Electronics:

    • Smart speaker microphone covers

    • Motion detector optics

  • Displays:

    • Touch panel overlays

    • OLED/LCD protective covers

Name Plano Convex Lens

Material

Optical Glass,borosilicate glass,Fused Silica,
Diameter Tolerance +0/-0.2 mm
Thickness Tolerance +/-0.2 mm
Cler Aperture over 90%
Surface Quality 80/50~10/5 
Transmission above 92%
Chamfer 0.1-0.3 mm x 45 degree
Focal Length Tolerance +/-2%
Back Focal Length Tolerance +/-2%
Coating available
Usage optical system, photographic sysem, Lighting system,laser,camera,monitor,projector,magnifier,telescope, etc.




 








Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Agent,Exporter,Trading Company,Seller

  • Year Established:

    2008

  • Total Annual:

    1000000-5000000

  • Employee Number:

    30~100

  • Ecer Certification:

    Verified Supplier

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 busines... 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 busines...

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Get in touch with us

  • Reach Us
  • Shanghai Longway Special Glass Co., Ltd.
  • Rm. 2111, Bldg. A, Tomson Center, No. 188, Zhangyang Rd., Shanghai, China
  • https://www.optical-glasslenses.com/

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