Area-wise Vat Polymerization, known also as Digital Light Processing or DLP, is a modification of Vat Polymerization. Instead of selective curing of a photopolymer by laser, a UV projector is used that cures an entire layer at once. This technology was first introduced by ENVISIONTEC and its founder Al Siblani.
Nowadays this process is especially popular in the medial sector. Dental aligners, hearing aids and other customized products are produced via this technology in high numbers and take advantage of the accuracy and speed of this technology.