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B270 BK7 Glass Optical Plano Lenses for Consumer Electronics
B270 BK7 Glass Optical Plano Lenses for Consumer Electronics
B270 BK7 Glass Optical Plano Lenses for Consumer Electronics
B270 BK7 Glass Optical Plano Lenses for Consumer Electronics
B270 BK7 Glass Optical Plano Lenses for Consumer Electronics
B270 BK7 Glass Optical Plano Lenses for Consumer Electronics
B270 BK7 Glass Optical Plano Lenses for Consumer Electronics
B270 BK7 Glass Optical Plano Lenses for Consumer Electronics
Specifications
Brand Name :
LONGWAY
Model Number :
LW1609208509
Certification :
ISO9001
Place of Origin :
Shanghai, China
MOQ :
800 pieces
Price :
Negotiation
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
Description



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.

B270 BK7 Glass Optical Plano Lenses for Consumer Electronics


B270 BK7 Glass Optical Plano Lenses for Consumer Electronics


B270 BK7 Glass Optical Plano Lenses for Consumer Electronics









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B270 BK7 Glass Optical Plano Lenses for Consumer Electronics

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Product Detail
Brand Name :
LONGWAY
Model Number :
LW1609208509
Certification :
ISO9001
Place of Origin :
Shanghai, China
MOQ :
800 pieces
Price :
Negotiation
Contact Supplier
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B270 BK7 Glass Optical Plano Lenses for Consumer Electronics
B270 BK7 Glass Optical Plano Lenses for Consumer Electronics
B270 BK7 Glass Optical Plano Lenses for Consumer Electronics
B270 BK7 Glass Optical Plano Lenses for Consumer Electronics

Shanghai Longway Special Glass Co., Ltd.

Verified Supplier
1 Years
shanghai, shanghai
Since 2008
Business Type :
Manufacturer, Agent, Exporter, Trading Company, Seller
Main Products :
Optical Glass Lens, Borosilicate Glass Lens, Glass Led Lens
Total Annual :
1000000-5000000
Employee Number :
30~100
Certification Level :
Verified Supplier
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