👉 Specillum, in Latin, is a type of light source that uses a special type of lens to focus light onto a surface. This type of light source is commonly used for scientific research, particularly in microscopy and photography. Specillum lenses are typically made of glass or plastic, with a coating on the inside to reflect the light back into the aperture (the opening at which the light enters the lens). In terms of the term "specillum," it refers to a type of light source that is
