Fresnel Lens, 100x100mm, Focal Length 100mm, Acrylic (not Glass), 3X Magnifying, Solar Death ray for Physics Classroom, Solar Heating, Fire Starter, Small Magnifier, DIY Optical Viewing Lens
High Light Transmittance, High Efficiency in Focusing, High Precision.
Great for Physics Classroom Education, Solar Heating Experiment, DIY Solar Project, Magnifying, Scientific Research, Optical education, DIY optical viewing lens, VR field
Optical education: The special structure of the Fresnel lens can adjust the parallel light or the focused light, so that the light is effectively directed to a specific narrow area to achieve the focusing effect of light. The children were curious about it.This is not only a base, but also a knowledge point that children need to learn.
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