Solid-state lighting

Why it will succeed, and why it won't be overtaken



Solid-state lighting is on the verge of replacing every lamp on earth, from the smallest signal lamp to the largest stadium-scale flood lamp. We review the path that solid-state lighting has taken: from its early years; to the pivotal period around 1999 when it began to be taken seriously; to the challenges it faced as it made continued progress; to the present when its success over traditional lighting is practically certain; and finally to the future in which it may face competition from other technologies.