Solar Large Fresnel Lens Focal Length 1300mm

• Customization: Available
• After-sales Service: Return or Replacement
• Warranty: 2 Years
• Model NO.: Fresnel Lens
• Usage: Lighting, Medical, Optical, Photography
• Type: Fresnel Lens
• Shape: Single-lens
• Material: PMMA Acrylic
• Lenses Color: Clear
• Certification: RoHS, ISO9001, CE
• Customized: Customized
• Coating: Customized
• Diameter: 150
• Substrate: Acrylic
• Wavelength Range (Nm): 400 - 1100
• Index of Refraction ND: 1.49
• Thickness Tolerance (%): ±40
• Dimensional Tolerance (Inches): ±0.05
• Operating Temperature (°c): 80 (Maximum)
• Transmission (%): 92 (From 400-1100nm)
• Focal Length(mm): 1300
• Groove Pitch(mm): 0.5
• Length(mm): 1100
• Thickness(mm): 5
• Width(mm): 1100
• Transport Package: Protective Packing
• Trademark: Oplens
• Origin: Chengdu, Sichuan, China
• HS Code: 9001909090
• Production Capacity: 200000PCS/Month

Product Description

Solar Large Fresnel Lens Focal  Length 1300mm

Product Description

 

A Fresnel lens replaces the curved surface of a conventional lens with a series of concentric grooves, molded into the surface of a thin, lightweight plastic sheet. The grooves act as individual refracting surfaces, like tiny prisms when viewed in cross section, bending parallel rays in a very close approximation to a common focal length. Because the lens is thin, very little light is lost by absorption. Fresnel lenses are a compromise between efficiency and image quality. High groove density allows higher quality images, while low groove density yields better efficiency (as needed in light gathering applications). In infinite conjugate systems, the grooved side of the lens should face the longer conjugate.

Properties:

Homogeneous illuminated area
Precise half angles and focal lengths
Exact light focusing due to precision pressing
Variable angular beam spread from spot to flood

Product Parameters

Substrate:	Acrylic
Wavelength Range (nm)	400 - 1100
Index of Refraction nd	1.49
Thickness Tolerance (%)	±40
Coating	Uncoated
Dimensional Tolerance (inches)	±0.05
Operating Temperature (°C)	80 (Maximum)
Transmission (%)	92 (from 400-1100nm)

 

Technical Information

 

Profile of a Fresnel Lens

Side Profile Comparison of a Plano-Convex (PCX) and a Fresnel Lens

Applications of fresnel lens

Light Collimation
A Fresnel lens can easily collimate a point source by placing it one focal length away from the source. In a finite-conjugate system, the grooved side of the Fresnel lens should face the longer conjugate because this produces the best performance.

Light Collection
One of the most common applications for a Fresnel lens is the collection of solar light, which is considered very nearly parallel (an infinite-conjugate system). Using a Fresnel lens for light collection is ideal for concentrating light onto a photovoltaic cell or to heat a surface. For example, a Fresnel lens can be used for popular home maintenance such as heating a home or pool! In these cases, the overall surface area of the lens determines the amount of collected light.

Magnification
Another common application for a Fresnel lens is magnification. It can be used as a magnifier or projection lens; however, due to the high level of distortion, this is not recommended. Also, the image quality does not compare to that of a higher-precision system given the amount of distortion.

While commonly found in solar applications, Fresnel lenses are ideal for any application requiring inexpensive, thin, lightweight positive lens elements. Fresnel lenses are not new technology, but their pervasiveness has increased with improvements in manufacturing techniques and materials. Fresnel lenses are truly unique optical lenses which make them a great tool for a range of interesting and fun optical designs.
 

Company Profile

Oplens (brand own by SiChuan JUKA Optical Technology) is located in the city of Chengdu, China, which enjoys the reputation of the world optical processing center. Oplens has been committed to providing customers with high-precision optical system solutions over 16 years, covering the complete manufacturing process from the design, processing and assembly of various optical components and mechanics. It occupies 10,000 square meters of modernized facilities with hundreds of equipments and instruments. More importantly, Oplens owns an excellent team of more than 200 experienced engineers and workers, who provide the best products and service to their both domestic and overseas customers.
You are most welcome to experience our outstanding products and services to make your business more stably and successfully.

Packaging & Shipping

Packaging Details:  Optical usage glass BK7 half rod cylinder ar coating plano convex cylindrical lens.
   Inner packing:special protective packing for optical products. 
   Outer packing:carton, Shock absorption material and bubble wrap. 
Delivery Time: 7-20days  Generally, we use the Fedex, DHL, UPS, TNT, Shunfeng, etc. (Please note it before delivery.) Transit time deponds on the express and destination. By the way, we would re-check all the details before delivery.

FAQ

Q1:Can you send me free samples or Can i have an sample order ?

A: Yes, We accept sample orders, and we're also willing to send you free sample to  test and check its quality . if we don't have the item in stock , then you could place an sample order.

Q2: How many days can i get my package after placing order?

A: If the order needs customized also the quantity is big. it will take around 10-30 wroking days to produce then shipping.

Q3: OEM services available?

A: Sure, please send us your design paper on platform to confirm more details information.

Q4:We have a commercial project,Can you help me offer an optical design solution ?

A:Yes, we have professional experts who are engaged in optical design for many years , please send us more detail of your project,we will supply our most suitable solutions for you.

Q5: What shipping methods do you have?

A: For small quanities or sample could by express such as: Fedex, UPS, DHL, EMS, etc. Large scale quantity in your demands:by sea/train ,or by air.In your requests.