What is the term for the control of light produced by a lamp using surfaces that refract, reflect or absorb light?

The term related to the control of light produced by a lamp using surfaces that refract, reflect or absorb light is "translucent." Translucent surfaces allow some light to pass through but scatter it in the process, which means they can control and diffuse light effectively. This characteristic is essential for handling light in various applications such as lighting design, where achieving the right ambiance and preventing glare are important.

Transparent surfaces, on the other hand, let light pass through with little to no scattering, thereby not controlling light as effectively as translucent materials. Opaque surfaces do not allow any light to pass through, making them unsuitable for applications that rely on manipulating light. The term "illuminated" refers more to being lit up or brightened by light rather than managing light, which doesn't fit the context of the question.