In an illuminative manner.

Illuminism

(informal, Britain, simile) Very brightly lit.

(computer graphics) The realistic lighting of a rendered scene by means of algorithms that take into account not only the direct illumination from light sources but also the indirect cases where light is reflected between surfaces in the scene.

(physics) The projection of a grid of lines onto a target in order to obtain information of its structure, typically by analysing the Fourier transform of the reflected light

A form of microscopy that employs structured illumination to observe biological structures smaller than the wavelength of the light used

plural of oblique illumination

A microscopic technique where light is projected at the specimen from an oblique, slanting angle to reveal features with higher contrast.