What is Fresnel Lens
The Fresnel lens was invented by French physicist Augustine Fresnel, the Augustin Fresnel first used this lens design to build a glass Fresnel lens - lighthouse lens in 1822.
The Fresnel lens is a thin, flat optical lens which consists of a series of small narrow concentric grooves on the surface. Each groove is at a slightly different angle than the next and with the same focal length in order to focus the light toward a central focal point. Every groove can be considered as an individual small lens to bend parallel Fresnel light waves and focus the light. The lens actually eliminates some spherical aberration.
A high groove density has a better quality projection image. The Fresnel lens is a good solution for quality image and efficiency at a significantly lower cost. The Fresnel lens is usually corrected for spherical aberration.
Application of Fresnel Lens
The applications for Fresnel lenses include lighting, fresnel lamp, lighthouse, overhead projector, projector accessories, fresnel magnifier, reading magnifier, TV projection, condenser system, camera spotlight, automobile headlight, solar energy, solar concentrator, solar photovoltaic, screen, rear projection screen, passive motion detector, traffic sign, collimator, flight simulator, optical landing system, LED magnifier, LED photometric, LGP(light guide plate), PIR lens, stage light, virtual reality head mount display, Oculus Rift, bank ATM, car back window, etc.
Specification
1. Material: Borosilicate glass, Pyrex, Borofloat, Float glass
2. Process: Grinding, Polishing
3. Surface quality: Optical surface quality and well controlled tolerance
4. Inside quality: Clear and transparent, no mold marks, no inside bubble and dirts,
5. Function: Guide of the light beams e. G. Fresnel lens, Plano lens, Bi convex lens, Bi concave lens, Prism, Cylindrical lens, Ball lens, Spherical lens, Aspheric lens, Meniscus lens
6. Application: Lighting system, Electronics, Electrical apparatus, Industries, e. G. Lamp cover, Lamp shade, Stage lens, LED lens, Reflector lens, Sight lens, Front lens, Refractor, Molded lens, Spot lens, light shade, Light cover, glass cover, glass shade, glass sheet, temper glass.
7. Standard size: Diameter 50mm, 80mm, 110mm, 112mm, 120mm, 130mm, 150mm, 152mm, 175mm, 200mm, 250mm, 300mm, etc.
| Part No. | Diameter(mm) | Thickness (mm) |
| GFL01 | 50 | 10 |
| GFL02 | 80 | 10 |
| GFL03 | 110 | 10 |
| GFL04 | 112 | 10 |
| GFL05 | 120 | 10 |
| GFL06 | 130 | 10 |
| GFL07 | 150 | 10 |
| GFL08 | 152 | 10 |
| GFL09 | 175 | 10 |
| GFL10 | 200 | 10 |
| GFL11 | 250 | 10 |
| GFL12 | 300 | 10 |
Commander Group Ltd. Is a professional supplier of Instruments and Machinery based in China.
We have skilled workers, innovative engineers and high quality sales staffs. We are market oriented and depend on technology innovation to provide customers with excellent products and services.
Products
Instruments including optical component, fresnel lens, surveying accessories and testing system, which are widely applied in solar thermal electric power generation, LED lamp, optical display systems, projection optics systems, imaging optics systems, beam expansion systems, geographic surveying instrument, bridge, ship, rotating machinery, lifting equipment, etc.
Machinery including hydraulic breaker and sewing machine. Hydraulic breaker is mainly serving mining, metallurgy, railway, highway, building, vessel applications. Sewing machine is widely used to close paper bag, jute bag, plastic woven bag, paper-plastic bag of sugar, chemical, fertilizer and food.
Quality
We carry out strict quality control according to ISO 9001 quality management system.
Excellent products have been sold to many countries and areas, we have a long term cooperation relationship with America, Europe Union, Asia, Africa and Middle East countries. We have been striving to grow and expand through many years' effort, basically our products have enabled us to meet our customers' diversified requirements.
Goal
Our goal is to transform Commander into the global leading brand in instruments and machinery industry within 3 to 5 years through innovation and reform, by strengthening the overall management of supply chain, developing and cultivating both domestic and overseas market, improving the procedure and information system, enhancing the ability to organize resources and to provide value-added services under a professional team and a learning organization.
Welcome to the Commander family.
