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5-Pack Fresnel Lenses 80mm(3.15) Focal Length 40mm Acrylic Fresnel Magnifier for Solar Heating,Equipment Lens,Visual Education (Focal Length 40mm)
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5-Pack Fresnel Lenses 80mm(3.15) Focal Length 40mm Acrylic Fresnel Magnifier for Solar Heating,Equipment Lens,Visual Education (Focal Length 40mm)
Great for Visual Aid education, Solar heating experiment, DIY Solar concentrator, Scientific Research, Magnifying... High light transmittance, High efficiency in focusing, High precision.
5-Pack Fresnel Lenses 80mm(3.15") Focal Length 40mm Acrylic Fresnel Magnifier for Solar Heating,Equipment Lens,Visual Education (Focal Length 40mm)
Item #: 11784672

5-Pack Fresnel Lenses 80mm(3.15") Focal Length 40mm Acrylic Fresnel Magnifier for Solar Heating,Equipment Lens,Visual Education (Focal Length 40mm)

Item #: 11784672

NAD 1509

Price Details

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Order now and get it around Thursday, July 30
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Great for Visual Aid education, Solar heating experiment, DIY Solar concentrator, Scientific Research, Magnifying... High light transmittance, High efficiency in focusing, High precision.
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What Stands Out

Versatile Usage
Ideal for solar heating, visual education, and equipment lens applications, making it a multifunctional tool for students, educators, and hobbyists alike.
High-Quality Material
Crafted from durable acrylic, these lenses are lightweight yet resilient, providing a clear optical quality that ensures effective magnification and heat concentration.
Convenient Pack Size
The 5-pack design offers great value by ensuring you always have spare lenses available for multiple projects or educational demonstrations, enhancing collaborative learning experiences.

Product Details

Shop 5-Pack Fresnel Lenses 80mm(3.15) Focal Length 40mm Acrylic Fresnel Magnifier for Solar Heating,Equipment Lens,Visual Education (Focal Length 40mm) online at a best price in Namibia. B071WFN86K
Item Weight1 lbs (450 grams)

Who Should Buy?

Suitable For
  • Educators

    Ideal for teachers to demonstrate optical principles and magnification effects in a classroom setting.

  • Solar Enthusiasts

    Useful for DIY projects focusing on solar heating or energy generation through focused sunlight applications.

  • Hobbyists

    Great for individuals interested in crafting or exploring optical experiments without high costs.

Not Suitable For
  • Professional Use

    Not suitable for precise optical applications requiring high-quality lenses and specifications.

  • Vision Aid

    Not effective for individuals who need corrective lenses for vision impairment or sight-related issues.

  • Outdoor Durability

    May not withstand extreme outdoor conditions or weather exposure due to their acrylic material.

Product Description

5-Pack Fresnel Lenses 80mm(3.15") Focal Length 40mm Acrylic Fresnel Magnifier for Solar Heating,Equipment Lens,Visual Education (Focal Length 40mm)

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What are Fresnel lenses, and how do they work?

    Answer: Fresnel lenses are specialized optical lenses designed to focus light in a compact form. They achieve this with a series of concentric grooves that reduce the amount of material needed, making them lighter and thinner compared to traditional lenses. This design allows for efficient light manipulation, making them ideal for applications like solar projects, visual education, and magnification tasks.
  • Question: What projects can I use the 5-Pack Fresnel Lenses for?

    Answer: The 5-Pack Fresnel Lenses are perfect for a variety of projects. They can be used for solar concentrators, enhancing visual education projects, or even for DIY optical experiments. Their lightweight design makes them highly portable, allowing you to test concepts such as solar energy focusing or magnifying objects easily in school science demonstrations or at home.
  • Question: How do I clean and maintain Fresnel lenses?

    Answer: To clean Fresnel lenses without damaging them, use a soft, lint-free cloth and a mild lens cleaner. Avoid abrasive materials which can scratch the lens surface. Regular cleaning will help maintain clarity and effectiveness, especially if they are used outdoors for solar projects. Ensuring your lenses are free from dust and smudges will optimize their performance in focusing light.
  • Question: Can I use these lenses for photography or art projects?

    Answer: Absolutely! The Fresnel lenses can enhance photography by manipulating light and creating unique effects. Artists can use these lenses for innovative lighting in artwork or even as tools for helping with perspective and focal length exercises. Their versatility opens up various creative avenues to explore visually.
  • Question: What is the significance of the 60mm focal length?

    Answer: The 60mm focal length of these Fresnel lenses makes them effective for a range of applications, including magnification and focusing light from various sources. This focal length is particularly useful for activities like solar heating projects, where you need to concentrate sunlight onto a smaller area to generate heat. Understanding the importance of focal length helps in selecting the right lens for your needs.
  • Question: Are these lenses safe for children to use?

    Answer: Yes, these lenses are generally safe for children when used under direct supervision. They can be used in educational settings for learning about optics and light. However, as with any optical device, it's important to conduct experiments safely, especially when dealing with sunlight concentration. Encourage responsible use and ensure safety guidelines are followed during educational activities.
  • Question: What materials are these lenses made from?

    Answer: The 5-Pack Fresnel Lenses are typically made from high-quality optical plastic. This material is chosen for its lightweight, durability, and excellent optical clarity. Plastic lenses are also less prone to breaking than glass counterparts, making them an excellent choice for educational settings or outdoor activities where they might be exposed to the elements.
  • Question: Can these lenses be used for solar energy projects?

    Answer: Certainly! These Fresnel lenses are particularly well-suited for solar energy projects, as they efficiently focus sunlight onto a specific point, increasing heat concentration. This ability makes them ideal for solar ovens, heating applications, and other renewable energy setups where maximizing sunlight capture is essential. Innovative solar experiments can be conducted using these lenses in fun and educational ways.
  • Question: How can the lenses enhance visual education?

    Answer: The Fresnel Lenses serve as excellent tools in visual education by helping students understand concepts of light, magnification, and optics. By incorporating hands-on experiments and demonstrations, educators can visually illustrate principles such as focal points, reflections, and solar power. They are especially useful in STEM-oriented projects, making complex concepts more relatable and engaging for learners.
  • Question: Where can I buy the 5-Pack Fresnel Lenses in Namibia?

    Answer: You can purchase the 5-Pack Fresnel Lenses conveniently on Ubuy. Ubuy offers a straightforward online shopping experience and a wide selection of optical products, ensuring you can find the exact lenses you need for your projects or educational purposes.

Six Seasons Optics Editorial Review

The 5-Pack Fresnel Lens has received mixed reviews from customers. Some buyers expressed disappointment, stating that the product was not helpful for their intended purpose, such as starting a fire. Others, however, found the lenses useful for magnifying small items like a menu at a restaurant, despite the fact that the plastic lenses scratch easily and require protection. One customer highlighted the effectiveness of the lens in igniting small wood shavings for a fire while camping, while another mentioned that the lens worked as described but was not great for magnification, causing distortion as the distance from the center increased. It was noted that the lenses were outstanding for starting fires and could burn a hole in thick cardboard in seconds. However, there was a lack of clarity around the quantity of each focal length lens in the pack, leading to confusion for some customers.

Customer Reviews & Ratings

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Pros

  • Effective for igniting small wood shavings for a fire
  • Useful for magnifying small items such as menus

Cons

  • Lenses are made of easily scratchable plastic

Product Price History

Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

NAD 1509

Order now and get it around Thursday, July 30

QTY:

Secured transactionsecured transaction

Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.

Our Top Logistics Partners
  • fedex
  • dhl
Fastest cross-border delivery

Features & Benefits

  • Versatile use in solar concentration, solar heating, and light gathering applications.
  • Ideal for magnifying print, making it perfect for books, magazines, maps, and more.
  • Suitable for use as projection lenses, magnifiers, and fire starter for outdoor cooking.
  • Excellent for visual aid and educational purposes, making it a great gift or toy for children.
  • Diameter 80mm with different focal lengths and high-quality acrylic material.
  • Professional-grade fresnel lenses with high precision and efficiency in focusing.