from my research on light art artist have been using light as a source of material for many years either using the image of light to be captured in a photograph or using light structure them selfs in installations and sculptures.
examples of some light artist are Dan Flavin, Olafur Eliasson, James Turrell, Waltraut Cooper, Aleksandra Stratimirovič, Austine Wood Comarow and many others.
the first sight of light art was founded in stain glass windows where the glass would be used to colour transmit light. this can be found going back as far as the 4th century in Church's and mosques.
another aspect of this subject has been used in shadow puppetry where the artist would use the light to cast a shadow. early forms of this have been described by Plato in the Allegory of the cave in the early as 380 BC.
every art piece uses light in some form, and all artist should take light in to consideration when producing work . light have become a very important feature in photography and moving images and also became a practice in the art world in itself.
LED art - the use of LED lights to create installations and sculptures has become very popular as LED are very cheap and an easy way of creating a new vibrant art piece.LED artist are usually guerilla artists also known as street artist who have been known to produce temporary pieces using LEDs in public places.