Square Fresnel Lens 520 x 520 mm, 620 mm Focal Length, PMMA
Currently unavailable
No store has this product in stock right now. Prices below are the last ones we recorded.
Prices updated: 14 Oct 2026
Price history
Lowest daily price, last 90 days
Not enough price history yet.
About this product
A large square Fresnel lens made from PMMA (acrylic), 3 mm thick with a 0.5 mm groove pitch. It focuses light at a 620 mm focal length and is used for light-focusing experiments, projection setups and optical DIY projects.
Specifications
- Shape
- Square
- Size
- 520 x 520 mm
- Thickness
- 3 mm
- Material
- PMMA (acrylic)
- Groove pitch
- 0.5 mm
- Focal length
- 620 mm
- Transmission
- 92%
- Refractive index (nd)
- 1.5
- Max operating temperature
- 80 °C
Frequently asked questions
What is the focal length of this lens?
The listed focal length is 620 mm, so the light converges at that distance from the lens surface.
Can it be used near heat sources?
The maximum operating temperature is 80 °C. Keep the lens below this limit and avoid placing it where concentrated light can heat a surface or object for long periods.
