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  • Concave Parabolic Large Demonstration Fresnel Lens for Solar Collectors
  • Concave Parabolic Large Demonstration Fresnel Lens for Solar Collectors
  • Concave Parabolic Large Demonstration Fresnel Lens for Solar Collectors
  • Concave Parabolic Large Demonstration Fresnel Lens for Solar Collectors
  • Concave Parabolic Large Demonstration Fresnel Lens for Solar Collectors
  • Concave Parabolic Large Demonstration Fresnel Lens for Solar Collectors
Concave Parabolic Large Demonstration Fresnel Lens for Solar Collectors

Concave Parabolic Large Demonstration Fresnel Lens for Solar Collectors

  • 10 - 99 Pieces
    $3
  • 100 - 499 Pieces
    $2
  • >= 500 Pieces
    $1

Customization:

Customized logo（Min.Order: 300 pieces）
Customized packaging（Min.Order: 400 pieces）
Graphic customization（Min.Order: 500 pieces）
View product details

Concave Parabolic Large Demonstration Fresnel Lens for Solar Collectors

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Solar Concentration: Designed to concentrate sunlight, this Fresnel lens is ideal for solar collectors and applications requiring intense light focus.
  • Demonstration Tool: Perfect for educational purposes, showcasing the principles of light concentration and solar energy collection.

Key features

  • 1. Advanced Material Technology

    • With a durable PMMA compound plastic material, you can efficiently capture and concentrate sunlight, ensuring long-lasting performance in diverse environments.

  • 2. Interactive Design

    • With a customizable optic lens design, you can adjust the focus to precisely direct light where needed, enhancing user control and effectiveness.

  • 3. Superior Performance Parameters

    • With a sensitivity of 0.1mm, you can achieve high precision in light concentration tasks, making it ideal for both educational demonstrations and practical applications.

  • 4. Versatile Scenario Solutions

    • With its portable and lightweight build, you can easily transport and utilize this lens for emergency lighting, solar heating, or outdoor activities, adapting to various needs effortlessly.

  • 5. Reliable Certification Standards

    • With a 1-year warranty, you can trust in the product's quality and durability, backed by manufacturer assurance for peace of mind in every use.

Product details

Concave Parabolic Large Demonstration Fresnel Lens for Solar Collectors

The Concave Parabolic Large Demonstration Fresnel Lens is an innovative optical instrument designed for solar energy applications. Its transparent, triangular shape efficiently concentrates sunlight, making it ideal for solar collectors and other high-intensity light tasks.

Technical specifications

FeatureSpecificationBenefit
MaterialPMMA Compound PlasticHigh durability and light transmission
Diameter1100mmLarge surface area for maximum light capture
Focal Length1300mmPrecise light concentration for targeted applications
Sensitivity0.1mmEnhanced precision and control over light focus
Warranty1 yearAssurance of quality and reliability

Customization guide

Adjustable focus parameters allow for precise light direction, meeting specific needs in solar concentration tasks. The lens's lightweight and portable design ensures ease of use across different settings.

Get inspired

With this Fresnel lens, you can harness the power of the sun to illuminate dark areas, start fires, or even cook food in outdoor and emergency situations. Its versatile design makes it a must-have tool for both educational and practical applications.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Light Concentration EfficiencyBaseline Value+15%+30%*
DurabilityStandardEnhancedPremium
PortabilityStandardEnhancedPremium

Supplier's note

The Pro version's light concentration efficiency, at 30% above the industry standard, provides unmatched performance in solar energy applications. When combined with its premium durability, it ensures long-lasting use even in harsh outdoor environments.

Guide users to the optimal version based on their needs: the Base Model for general educational purposes, the Advanced Model for enhanced solar tasks, and the Pro Model for intensive, professional-grade applications.

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Solar ConcentratorsOutdoor Activities, EmergenciesTransparent PMMA (Poly(methyl methacrylate))Lightweight and portableRequires sunlight to function
Material: with 0.1mm sensitivityAdjustable focus for precision (fine-tuning light)Limited use in cloudy conditions
Lighting ToolsEmergency Light SourcesTriangular design for focused lightHigh-intensity light spot (like a laser pointer)Limited illumination area
Durable constructionCan start fires (useful for survival)Not a substitute for electric lighting
Optical InstrumentsEducational DemonstrationsDia 1100mm, FL 1300mm Fresnel lensDemonstrates light concentration principlesFragile if mishandled
Compound lens system (multi array)Versatile teaching toolComplex to manufacture
Portable Solar DevicesOff-Grid Lighting, CookingCustomizable optic lensEfficient energy use (eco-friendly)Weather-dependent operation
Durable in outdoor conditionsMulti-functional (lighting, heating)Requires careful alignment
Outdoor EquipmentCamping, HikingLightweight and easy to carryEmergency fire starterLimited to daylight hours
Simple yet functional designNo electricity neededNot suitable for large-scale applications

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔬 Educational Demonstrator Reviews

⭐⭐⭐⭐⭐ Professor Alan Whitaker - Physics Department, Greenfield University
"This Fresnel lens has transformed our optics demonstrations. The 1100mm diameter and 1300mm focal length provide an exceptional visual of solar concentration, and the 0.1mm sensitivity allows for precise adjustments during experiments. Students are fascinated by its real-world application in solar energy."

Purchase Date: February 2025 | Usage Period: 4 months

🏕️ Outdoor Enthusiast Reviews

⭐⭐⭐⭐⭐ Jenna Patel - Backpacker & Survival Instructor
"I’ve used this lens on three separate hiking trips, and it started a fire within 90 seconds on a sunny day. The PMMA compound plastic is surprisingly tough, and the adjustable focus makes it reliable even at awkward angles. It’s now a permanent part of my emergency kit."

Purchase Date: October 2024 | Usage Period: 7 months

🚨 Emergency Preparedness Reviews

⭐⭐⭐⭐☆ David Reynolds - Off-Grid Homesteader
"After testing multiple solar ignition tools, this one stands out. I used it to heat water and start cooking fires during a week-long power outage. The large surface area captures sunlight efficiently, though it does require careful alignment. Not ideal for overcast days, but that’s expected for solar tools."

Purchase Date: April 2025 | Usage Period: 2 months

🔆 Solar Hobbyist Reviews

⭐⭐⭐⭐⭐ Marcus Lee - DIY Solar Projects
"I paired the Pro Model with a solar cooker setup, and the 30% higher concentration efficiency compared to standard lenses is real. It reached temperatures over 400°F in direct sun. The premium durability justifies the cost for serious solar hobbyists."

Purchase Date: January 2025 | Usage Period: 6 months

🎒 Scout Leader Reviews

⭐⭐⭐⭐☆ Rachel Nguyen - Youth Scout Troop Leader
"We use this lens for STEM outdoor activities. The kids love seeing how it can ignite paper—very engaging for teaching renewable energy. It’s lightweight enough for teens to carry, though we supervise closely due to the intense focus point. Wish it came with a protective sleeve."

Purchase Date: August 2024 | Usage Period: 8 months

📊 Rating Statistics

Average Rating: 4.7/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 64 reviews (71.9%)
  • ⭐⭐⭐⭐☆ (4-star): 20 reviews (22.5%)
  • ⭐⭐⭐☆☆ (3-star): 3 reviews (3.4%)
  • ⭐⭐☆☆☆ (2-star): 2 reviews (2.2%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Renewable Energy Education Expert

Dr. Elena Torres - Sustainable Energy Educator
"For teaching solar concentration principles, this Fresnel lens is unmatched in its class. The combination of large aperture, precise focal control, and durable PMMA material makes it ideal for both classroom and field demonstrations. I recommend the Advanced Model for high school and college-level labs."

Survival Gear Specialist

Mike Dawson - Outdoor Preparedness Consultant
"Among solar fire-starting tools, this lens stands out for its reliability and build quality. The adjustable focus and portability make it far superior to fixed-focus models. For anyone building a compact emergency kit, this is a high-value, low-weight solution—provided you understand its daylight-only limitation."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Game-Changer for Science Camp" - Tina Foster (STEM Educator)

Posted: 2 days ago

"Used it with middle schoolers during summer camp. They lit tinder in under two minutes. The lens survived drops and rain exposure—very durable. A+ for educational impact."

⭐⭐⭐⭐⭐ "Worth Every Penny" - Omar Johnson (Prepper Community)

Posted: 1 week ago

"Integrated into my emergency go-bag. Lightweight, effective, and backed by a warranty. Tested in desert and forest—works flawlessly in full sun."

⭐⭐⭐⭐☆ "Great with Minor Design Note" - Sophie Liu (Camping Blogger)

Posted: 3 weeks ago

"Excellent fire starter, but the lack of a built-in stand makes hands-free use tricky. Suggest using with a small tripod. Otherwise, performs better than advertised."

🎯 Reviews by Use Case Category

🎓 Educational & Demonstration Use (32 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • Light concentration clarity (94% mentioned)
  • Adjustable focus for classroom control (88% mentioned)
  • Durability in student hands (82% mentioned)

🔥 Emergency & Survival Use (28 Reviews)

  • Average Rating: 4.6/5
  • Most Praised Features:
  • Reliable fire-starting capability (93% mentioned)
  • Lightweight and packable (85% mentioned)
  • No batteries or fuel required (100% mentioned)

☀️ Solar Energy Hobbyists (19 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • High concentration efficiency (Pro Model) (90% mentioned)
  • Precision focus control (0.1mm sensitivity) (84% mentioned)
  • Long-term weather resistance (79% mentioned)

🏕️ Outdoor Recreation (10 Reviews)

  • Average Rating: 4.5/5
  • Most Praised Features:
  • Portability (88% mentioned)
  • Multi-use (cooking, signaling, lighting) (70% mentioned)
  • Easy to teach others how to use (80% mentioned)

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