-5%
عدسة فريسنل، القطر 14.96 بوصة (380 مم)، الطول البؤري 17.71 بوصة (450 مم)، فرن شمسي، أشعة الموت الشمسية لفصول الفيزياء، مشعل نار للتدفئة بالطاقة الشمسية، عدسة أكريليك (وليس زجاج)
مميزات خاصة
- 1-Pack Φ380mm(14.96"), Focal Length: 450mm(17.71")
- High light transmittance, high efficiency in focusing, high precision
- Made of high-quality PMMA acrylic material, with high transparency and durability.
- Great for Physics Classroom Education, Solar Heating Experiment, DIY Solar Project, Magnifying, Scientific Research
- Tips: Wear sunglasses when using, so that the light is not too strong to damage the eyes
- Six Seasons is a Professional Manufacturer of Fresnel Lens and Optical Lens, If you have size customization needs, welcome to leave a message to us
وصف
Size: Φ380mm(14.96"), Focal Length: 450mm(17.71"), Thickness: 3mm, Material: PMMA (acrylic), Groove pitch: 0.5mm, Transmission 92%
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