Shanghai Longway Special Glass Co., Ltd.
| Payment Terms | D/P,T/T,Western Union |
| Supply Ability | 12000 Pieces per Month |
| Packaging Details | electrolytic capacitor paper,foam,carton |
| Shape | Convex |
| Surface quality | 40/20 |
| Transmission | over 90% |
| Coating | available |
| Application | Optics and Laser |
| OEM | available |
| Brand Name | LONGWAY |
| Model Number | LW1609223532 |
| Certification | ISO9001 |
| Place of Origin | Shanghai, China |
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Product Specification
| Payment Terms | D/P,T/T,Western Union | Supply Ability | 12000 Pieces per Month |
| Packaging Details | electrolytic capacitor paper,foam,carton | Shape | Convex |
| Surface quality | 40/20 | Transmission | over 90% |
| Coating | available | Application | Optics and Laser |
| OEM | available | Brand Name | LONGWAY |
| Model Number | LW1609223532 | Certification | ISO9001 |
| Place of Origin | Shanghai, China | ||
| High Light | Optical Convex Condenser Lens ，Optical Convex Lens ，Optical Condenser Lens for Lighting Instruments | ||
Optical Convex Condenser Lens for Overhead Projector, Stage Lighting and Lighting Instruments
1. Core Material & Design:
Material: Made from clear, high-transmission optical glass (e.g., soda-lime crown) or high-temperature resistant glass (e.g., borosilicate for lighting).
Design: A plano-convex or bi-convex lens, characterized by a curved surface that converges light rays.
2. Defining Physical & Optical Properties:
Positive Focal Length & Convergence: As a converging lens, it bends incoming light rays inward to meet at a focal point.
High Light Collection Efficiency: Its curved surface gathers light from a broad area, concentrating it into a more intense, directed beam.
Heat Resistance (Lighting Applications): Variants for stage/studio use are tempered or made from materials like borosilicate glass to withstand intense heat from halogen or high-power LED sources.
Optical Clarity: Features minimal bubbles or imperfections to reduce scatter and maximize light throughput for bright, clear projection.
3. Primary Function in a System:
Condensation & Illumination: Acts as the core condenser lens in an optical train, collecting and focusing light from the source (lamp, LED) to uniformly illuminate a target plane (e.g., a slide, gobo, or LCD panel).
Efficiency Enhancement: Maximizes system efficiency by directing as much of the source's light as possible through the projection gate or aperture, increasing overall brightness.
Beam Control: In lighting instruments, it helps shape the raw light into a preliminary beam before further refinement by other lenses (e.g., a Fresnel lens).
4. Target Applications & Instruments:
Presentation & Education: Overhead projectors (OHP) and modern digital overhead/opaque projectors.
Stage & Studio Lighting: Fresnel spotlights, followspots, and ellipsoidal reflector spotlights (ERS/Lekos) as a key internal condenser element.
Photographic Enlargers: Used in darkroom equipment to evenly illuminate a photographic negative.
Specialized Scientific Instruments: In microscopes (as part of the condenser system) and other optical illuminators.
| Name | Optical Convex Lens |
| Material | Optical glass, Qurartz glass, borosilicate glass |
| Diameter Tolerance | +0/-0.15 mm |
| Thickness Tolerance | +/-0.15mm |
| Processed | by grinding, polishing |
| Surface Quality | 60/40,40/20 |
| Material Quality | no scratches and air bubble |
| Transmission | above 90% |
| Chamfer | 0.1-0.5 mm x 45° |
| Surface Coating | Available |
| Usage | Photography, Lighting system |
Company Details
Business Type:
Manufacturer,Agent,Exporter,Trading Company,Seller
Year Established:
2008
Total Annual:
1000000-5000000
Employee Number:
30~100
Ecer Certification：
Active Member
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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