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Six season is a professional manufacturer of precision optical lenses, mainly producing Fresnel lenses, spherical lenses, splitting prisms, color prisms.
The company can design and produce products according to customer needs, we pay attention to product innovation, improve product quality. If you have product customization needs, You can leave us a message
Product shooting
Product shooting
All products are shot in natural light, due to All products are shot in natural light, due to the different shooting angles and background plate, the picture you see may have a small error, please prevail in kind!
- [Product name] Fresnel lens
- [Material] PMMA (Acrylic)
- [size] 300*300mm
- [focal length]510mm
- [grain length] 0.3 mm
- [thickness] 2 mm
- [light transmission] 92%
Square 300*300MM Fresnel lens
Fresnel lens with square concentric circles on the front and smooth surface on the back, regular thickness of 2 mm, edge and center thickness the same (non-convex lens)(non-glass)
Fresnel lens and convex lens are the same in function, but the shape is completely different, please pay attention to the distinction.
- Square 300*300MM Fresnel lens, Focal Length 510mm
- The focal length spot has no astigmatism and the spot is uniform
- Outdoor spotlights easily ignite wood and charcoal fires
- Square magnifyier, Condenser ignition, Scientific experiment lens, This Fresnel Lens can be used on Plane Magnifier,Solar energy concentrator,flashlight
- Used in lighthouses and searchlights to focus light into a relatively narrow beam
Spotlight shot
The measured focusing temperature was 636.8 ° F at 86 ° F outdoors
For solar heat storage DIY projects
The high-power condenser lens ignites easily in sunlight
Focal length diagram
Focal length is the linear light focused through the lens to form a spot, when the spot is the smallest, the linear distance between the center of the lens and the spot is the focal length
Square concentric circles
Fresnel lens with square concentric circles on the front and smooth surface on the back
Jeff & Wendy S
2025-01-20 15:30:49
Apologies to the seller who asked me to review this... took months... I wasn't really sure which project I was going to do with it.Let me tell you, this REALLY works. It works well as a large magnifier and it REALLY works well at focusing a light source.If you use this for emergency fire starting (or just cuz you never grew out of your light-things-on-fire-with-a-magnifying-glass phase) just be warned: IF NOT USED PROPERLY, THIS IS VERY DANGEROUS! I tested this by focusing it on a small piece of cardboard... just using the ambient sunlight on an autumn day (and this was inside my screen room, so the fun was being filtered by screen) the cardboard ignited in SECONDS. Paper ignited almost immediately. WEAR HEAVY DARK SAFETY GLASSES OR DO NOT LOOK DIRECTLY AT THE FOCUSED LIGHT SPOT. And MOST DEFINITELY do not leave this anyplace where sunlight could go through it and focus on anything even remotely flammable. Do not walk with it hanging at your side... if it stops for 1 second with the bean focused on your leg or pants, you will regret it!So, warnings aside, if you have a project that needs a large but light, thin, high-quality lens, this does exactly what it's supposed to do... very well. Just don't blame me if you light your face on fire.
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