Talk:Handheld projector

why PICO projector?
Why call them PICO projectors? why not just NANO or MICRO? the term PICO seems to come from a first prototype, then used by other manufacturers to remain hip. referring to dimensions PICO is an abusive word here, something handheld is in the order of centimeters, nothing to do with picometers not even micrometers. Whatever you call them these projectors ARE the future, especially in cell-phones, where it is always hard to show photos and such to a small group of people, or just oneself, being able to project the image on a nearby white wall or surface is a REALLY desirable feature. Millions of people would want this feature in their cell phone, the 'study' is no surprise. While the laser technology seems very promising, able to have an infinite depth of field (always in focus), the article should detail more the main obstacle of the future: the ENERGY vs SIZE problem: i think we are still years, possibly decades away, from a battery (and light generation) technology that can hold lightly in your hand, and produce enough light to project a reasonably large (1-3 ft) and bright (not needing a complete darkroom) image.... The 'pico optoma' is a joke, the image is pretty small and the sightest ambiant light washes it out, and i bet after less than an hour you need a recharge...


 * Well, so called "microcomputers" are the size of a big briefcase, and "microchips" usually can still be seen with the naked eye. The usage here seems to be just an expression of relative size to previous technologies and not about actual SI units. --TiagoTiago (talk) 18:43, 22 August 2012 (UTC)

Incorrect fact re DLP life
The statement "While slightly lower in resolution than their LCOS counterparts[jargon] and less robust due to the tiny mirrors used in DLP technology" is incorrect. The DLP technology has been shown to be reliable over many years and application areas, including consumer, industrial and professional cinema. There is no inherent wear mechanism in the micro-mirrors, with elastic bending only in the torsion spring mounting due to the small twist angles. DLP projector life is dominated by LED or lamp life, as for other technologies. —Preceding unsigned comment added by 81.131.248.185 (talk) 10:01, 8 February 2010 (UTC)

Missing references
The references on applications of handheld projectors are all follow-up works. Here are the two pieces of seminal works that started it, which also demonstrated a much broader set of applications:

1. Beardsley, P., Baar, J.V., Raskar, R., and Forlines, C. (2005). Interaction using a handheld projector. IEEE Computer Graphics and Applications, 25(1). p. 39-43.

2. Cao, X. and Balakrishnan, R. (2006). Interacting with dynamically defined information spaces using a handheld projector and a pen. Proceedings of UIST 2006, ACM Symposium on User Interface Software and Technology. p. 225-234.

Never mind the detailed gripes
Never mind the detailed gripes, this article as it stands gave me just the overview I needed to understand what the thing was and to go and find out more - which is surely what an encyclopedia is about.

David Kettlewell (talk) 09:18, 19 April 2010 (UTC)
 * I usually resort to encyclopedias when i wanna find out more... --TiagoTiago (talk) 18:45, 22 August 2012 (UTC)