Traditional Culture Encyclopedia - Traditional festivals - Which is better, Fresnel lens or convex lens?
Which is better, Fresnel lens or convex lens?
Fresnel lens. All right.
1. In terms of focusing degree, Fresnel lens is much more efficient than convex lens, only losing 20% of light. Ordinary convex lens loses 50% of light, and its focus is not enough.
2. In terms of materials, Fresnel lens is made of high-quality condensing material, and ordinary convex lens is made of ordinary lens material.
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