Customized High Spot Temperature Fresnel Solar Lens for Cooking (PMMA)
| Production name |
Fresnel lens |
| Material |
k9,b270,gjs2 |
| Focus |
2%@10.6um |
| Dimension tolerance |
+0/-0.2m |
| Center thickness tolerance |
0.1mm |
| Centration |
3' |
| Form error |
3 |
| Surface quality |
60/40 |
| Irregularity |
0.5 |
| Clear aperture |
>90% |
Fresnel lens (Fresnel lens), also known as threaded lens, is mostly a thin sheet made of polyolefin material, and also made of glass. The surface of the lens is smooth on one side, and the other side is engraved with concentric circles from small to large. , its texture is designed according to the requirements of relative sensitivity and receiving angle by utilizing the interference of light and interference, and the requirements of the lens are very high. A high-quality lens must have a smooth surface, clear texture, and its thickness varies with the application, mostly around 1mm. The characteristics are large area, thin thickness and long detection distance. The Fresnel lens is equivalent to a convex lens of infrared and visible light in many cases, and the effect is better, but the cost is much lower than that of the ordinary convex lens. It is mostly used in occasions that do not require high precision, such as slide projectors, film magnifiers, infrared detectors, etc.
Application field
Solar Energy: As solar concentrators, Fresnel lenses focus sunlight onto small, high-efficiency solar cells, enhancing power generation efficiency and reducing the cost of photovoltaic systems.
Lighting Equipment: In LED lamps, Fresnel lenses collimate and diffuse light to achieve uniform illumination. They are widely used in automotive headlights, stage lighting, flashlights, etc.
Optical Instruments: Used in magnifying glasses, projection devices, and auxiliary lenses for microscopes to achieve magnification and imaging functions at a lower cost.
Security and Sensing: In passive infrared (PIR) detectors, Fresnel lenses focus the infrared radiation emitted by humans onto sensors, expanding the detection range and enhancing sensitivity.
Projection Display: In projectors and head-up display (HUD) systems, Fresnel lenses help adjust the optical path to achieve large-sized, clear image projection.
Aerospace and Maritime: Used to manufacture lighthouse lenses, enhancing the range and visibility of lights; applied in aircraft cockpit display systems for light guidance and focusing.
Shanghai Jingsheng is a professional manufacturer of precision optical components and laser crystal components. The company has a technical team with many years of experience in the industry. We can customize various optical components according to your detailed requirements, drawings or samples. Welcome to inquire. The company has passed the ISO9001 quality system certification and has advanced production and testing equipment. The company also has the ability to produce from small batches, multi-variety and high precision to mass production, to meet customers' one-stop product procurement needs and provide optical solutions.
Since establishment,the company has been committed to the research and deve lopment, production and sales of optical components,capable of designing optical systems and the production of related accessories, and obtaining the right to import and export products.The products are sold to many countries and regions, and the United States,Canada,the European Union and other optical companies have established long-term and good cooperative telations, and have gained a good reputation with high-quality products.
1. Are you a manufacturer or trader? Can I visit your factory or office? How to see your factory on line?
We are a manufacturer in Shanghai, China.You are welcome to visit our factories and offices at any time.
2.What's your minimum order quantity?
1 unit.
3.What's your payment term?
T/T, Letter of Credit, Western Union etc.
4.Do you have professional person to design according to my requirement?
Of course, we have R&D department to work with you and provide you the best service until you will be satisfactory.
5. What's the lead time?
It is up to your quantity and specification and our stock.
Your products will be sent within 5 days once you make payment for the stock products.
6. Do you have enough stock?
Sure. We have enough stock because our factory is in this area for over 20 years.You can contact our salesperson to get stock at any time.
7. Can you accept OEM or ODM?
Yes, we accept all OEM and ODM.
8. Do you give a warranty of your products?
Yes, if there is a quality problem, you can contact us freely, we can give you the solution in time. We will rework or provide the replacements to you at our cost according to actual conditions.
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