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Precision Optical Plano Concave Lenses for Beam Expansion and Light Divergence
Precision Optical Plano Concave Lenses for Beam Expansion and Light Divergence
Precision Optical Plano Concave Lenses for Beam Expansion and Light Divergence
Precision Optical Plano Concave Lenses for Beam Expansion and Light Divergence
Precision Optical Plano Concave Lenses for Beam Expansion and Light Divergence
Precision Optical Plano Concave Lenses for Beam Expansion and Light Divergence
Specifications
Brand Name :
LONGWAY
Model Number :
LW1609201426
Certification :
ISO9001
Place of Origin :
Shanghai, China
MOQ :
800 pieces
Price :
NEGOTIATION
Payment Terms :
T/T,Western Union,MoneyGram,D/P
Supply Ability :
50000 Pieces per Month
Packaging Details :
electrolytic capacitor paper,foam,carton
Structure :
Plano-concave
Surface :
Optical grade
Transmission :
over 90%
Coating :
available
Application :
Optics and laser system
OEM :
available
Description



Precision Optical Plano Concave Lenses for Beam Expansion and Light Divergence


  1. Material & Fabrication

    • Substrates: Optical glass (N-BK7, SF11), Fused Silica (UV grade), CaF₂ (deep UV), ZnSe/Ge (IR)

    • Precision Standards: λ/4 surface accuracy, ±0.01mm thickness tolerance, <3 arcmin centration error

    • Coatings: Broadband/V-Lambda AR options (>99.5% transmission)

  2. Key Optical Properties

    • Focal Length: Negative (typically -10mm to -1000mm)

    • Surface Quality: 20-10 scratch-dig specification

    • Wavefront Distortion: < λ/2 @ 632.8nm

    • Geometric Feature: Flat (plano) surface + inward-curving (concave) surface

  3. Primary Functions

    • Beam Expansion: Diverges collimated input to widen laser diameter (e.g., pre-collimation in Galilean telescopes)

    • Light Divergence: Creates controlled spreading for uniform illumination

    • Focal Length Reduction: Compensates for convergence in imaging systems

    • Aberration Correction: Counters spherical distortion in multi-lens assemblies

  4. Critical Applications

    • Laser Systems: Beam shaping in Nd:YAG/CO₂ lasers, fiber collimators, and interferometers

    • Imaging Optics: Field flattening for microscopes/telescopes, eyepiece correction

    • Sensing & LiDAR: Divergence control in rangefinders and 3D scanners

    • Illumination: Uniform light distribution in medical/scientific devices

    • Metrology: Wavefront manipulation in interferometric testing


Item Optical glass plano concave lens
Material Optical glass, Qurartz glass, Pyrex, borosilicate glass, Float glass
Diameter Tolerance +0/-0.2 mm
Thickness Tolerance +/-0.2 mm
Processed by grinding, polishing
Surface Quality 80/50,60/40
Material Quality no scratches and air bubble
Transmission above 90%
Chamfer 0.1-0.3 mm x 45 degree
Surface Coating Available
Usage Photography, Lighting system, Electronic apparatus

Precision Optical Plano Concave Lenses for Beam Expansion and Light DivergencePrecision Optical Plano Concave Lenses for Beam Expansion and Light DivergencePrecision Optical Plano Concave Lenses for Beam Expansion and Light Divergence


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Precision Optical Plano Concave Lenses for Beam Expansion and Light Divergence

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Product Detail
Brand Name :
LONGWAY
Model Number :
LW1609201426
Certification :
ISO9001
Place of Origin :
Shanghai, China
MOQ :
800 pieces
Price :
NEGOTIATION
Contact Supplier
video
Precision Optical Plano Concave Lenses for Beam Expansion and Light Divergence
Precision Optical Plano Concave Lenses for Beam Expansion and Light Divergence
Precision Optical Plano Concave Lenses for Beam Expansion and Light Divergence

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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