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Which types of lens surfaces produce a diverging lens?
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Explanation of the refraction of light through different lenses.
Diverging lenses are classified based on the curvature of their two surfaces. According to optical principles, the types of lens surfaces that produce a diverging lens include:
- Biconcave: Both surfaces are concave (depressed).1
- Plano-concave: One surface is plane (flat) and the other is concave.1
- Convexo-concave (diverging meniscus): One surface is convex (bulging) and the other is concave.1
These lenses cause incident parallel light rays to appear to diverge from a single focal point. In terms of optical power, a diverging lens is characterized by a negative diopter value.12