= entire range of light that exists
The shorter the wavelengths the more harmful they are due to their high frequencies.
= the fact or phenomenon of light, radio waves, etc., being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density
= the relationship between the angles of incidence and refraction, when referring to light or other waves passing through a boundary between two different isotropic media, such as water, glass, or air.
TOTAL INTERNAL REFLECTION
= a phenomenon that occurs when light travels from a more optically dense medium (or a medium with higher refractive index) to a less optically dense one (lower index), such as glass to air or water to air
= has a reflecting surface that bulges inward (away from the incident light), reflect light inward to one focal point, used to focus light; show different image types depending on the distance between the object and the mirror
= a curved mirror in which the reflective surface bulges toward the light source, reflecting light outwards, therefore they are not used to focus light
= is a mirror with a flat (planar) reflective surface; for light rays striking a plane mirror, the angle of reflection equals the angle of incidence
= (or convex lens) is curved on both sides; the light rays coming out of it come together at a point – they converge
= double concave lens that always produces a virtual image
= a "perfect" lens that doesn't exhibit chromatic aberration
= uses metamaterials to go beyond the diffraction limit (a feature of conventional lenses and microscopes that limits the fineness of their resolution)
= can view ultraviolet (1200-1400 THz) light; created using alternating layers of boron nitride and graphene
Notes coming soon.