The Rhibhus or Ribhus, meaning "clever, skillful, inventive, prudent", are three partially divine beings from Vedic lore. In Hindu mythology (Vishnu Purana), Ribhu or Rhibhu is a son of Brahma. Ribhus sometimes relates with Ultraviolet.
They dwell in the solar sphere and are the artists who formed the horses of Indra, the carriage of the Ashvins, and the miraculous cow of Brihaspati. They made their parents young and performed other wonderful works. They are to relax and remain idle for twelve days during the winter solstice every year in the house of the Sun Agohya, after which they begin working once again. All three are said to be the sons of Sudhanvan.