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High Clarity Optical Double Convex Magnifying Glass for Stamp and Coin Collectors

Shanghai Longway Special Glass Co., Ltd.
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High Clarity Optical Double Convex Magnifying Glass for Stamp and Coin Collectors

Brand Name : LONGWAY

Model Number : LW241231

Certification : ISO9001

Place of Origin : China

MOQ : 800 pieces

Price : NEGOTIATION

Payment Terms : T/T,Western Union

Supply Ability : 30000 Pieces per Month

Packaging Details : electrolytic capacitor paper,foam,carton

Structure : Convex

Surface : Optical grade

Transmission : over 90%

Coating : available

Application : Optics and lighting

Port : Shanghai

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High Clarity Optical Double Convex Magnifying Glass for Stamp and Coin Collectors



1. Material Composition:

  • Optical-Grade Glass: High-transparency, low-impurity borosilicate or crown glass with minimal distortion.

  • Double-Convex Design: Precisely ground and polished curved surfaces on both sides for superior magnification and reduced spherical aberration.


2. Key Properties:

  • High Magnification Power: Ranges from 5x to 20x magnification for detailed inspection of fine textures, engravings, and defects.

  • Exceptional Clarity: >99% light transmission with anti-reflective coating to minimize glare and eye strain.

  • Minimal Distortion: Achromatic design corrects color fringing for true-to-life color accuracy.

  • Ergonomic Design: Lightweight, scratch-resistant, and often paired with built-in LED illumination for low-light environments.


3. Core Functions:

  • Detail Inspection: Enables precise examination of micro-features (e.g., stamp perforations, coin mint marks, and surface wear).

  • Authentication: Critical for detecting counterfeits, alterations, or hidden details in collectibles.

  • Portable Analysis: Handheld or stand-mounted designs for versatile use in fieldwork or displays.


4. Applications:

  • Stamp Collecting: Inspecting perforations, watermarks, and printing quality of rare stamps.

  • Coin Grading: Evaluating mint luster, scratches, and edge lettering for NGC/PCGS grading standards.

  • Antique Appraisal: Jewelry, vintage documents, and small artifact examination.

  • Hobbyist Use: Model building, engraving, and electronics repair.


Item Optical magnifying 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


High Clarity Optical Double Convex Magnifying Glass for Stamp and Coin Collectors


High Clarity Optical Double Convex Magnifying Glass for Stamp and Coin Collectors


High Clarity Optical Double Convex Magnifying Glass for Stamp and Coin Collectors



Product Tags:

optical magnifying glass

      

optical double convex lens

      

High Clarity Optical Glass

      
Wholesale High Clarity Optical Double Convex Magnifying Glass for Stamp and Coin Collectors from china suppliers

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