In optics, a prism is a transparent optical element with flat, polished surfaces that refract light. At least two of the flat surfaces must have an angle between them. The exact angles between the surfaces depend on the application. The traditional geometrical shape is that of a triangular prism with a triangular base and rectangular sides, and in colloquial use "prism" usually refers to this type. Some types of optical prism are not in fact in the shape of geometric prisms. Prisms can be made from any material that is transparent to the wavelengths for which they are designed. Typical materials include glass, plastic and fluorite.
Posts about Prism
  • Vision Problems Caused by Brain Injury

    … to maintain visual contact or focus Reduction or loss of visual field (Visual Field Loss) Difficulties with eye movements, such as: eye tracking ability, shifting gaze quickly from one point to the other, focusing, eye alignment, eye teaming, and depth perception. Techniques for Vision Problems Caused by TBI There are various techniques…

    Gabriel Levin/ 11 readers -
  • Arbitration Redux: Supreme Court Speaks Again

    … of competent jurisdiction.” In other words, the holding in DIRECTV was all about contract law. Second, the rule from Concepcion, and applied in DIRECTV, is that arbitration agreements must, under state law, “stand on equal footing with all other contracts.” Under this prism, the interpretation of “law of the state” needed to be guided by ordinary…

    Brann & Isaacson- 52 readers -