Laserdiode-projektor

EnLaserdiode-projektorellerlaser-projektorer etapparat,der ligesom en almindelighalogenpærebaseretprojektor,kan sende et lysbillede eller lysfilm op på en hvid flade, der kan betragtes af en eller flere mennesker.

Fordelene vedlaserdiodebaseredeprojektorer er typisk:

Uendelig fokus. Lige meget hvilken afstand billedetprojicereshen til, vil billedet stadig være i fokus. Med andre ord behøver fokus ikke at justeres.
Ingen bevægelig dele. Dette gælder for de nyeste laserdiode-projektorer. Fordelen er længere levetid.
Pga. halvlederlaseres høje effektivitet i dag og højere i fremtiden, vil effektforbruget være sammenlignelig eller bedre endplasmaskærmeog andrefladskærme.

Praktiske prototyper

I 2006 blev der fremvist en monokrom grøn laserdiode-projektor med netop disse egenskaber. ^[1] Den kan anvendes til billedstørrelser omkring 7tommer.

I nogle nye prototypeapparater er laserdiode-projektoren bygget ind i en kasse og kaldes så etLaser-tvellerlaser-monitor.Ifølge en af de første laser-tvinnovatorerNovalux og Arasor, giver det en størregamutog derfor et større formidletfarverum.Herudover anvender det aktuelle laser-tv kun 1/4 af den elektriske effekt og en halvering af vægten, i forhold til et plasma-tv. ^[2] Novalux og Arasor laser-tv er bestykket med højeffektslaserdioder, der samlet kan levereRGB-farvermed følgende optiske effekt: Rød 750mW, grøn 3000mW, blå 3000mW. ^[3]

En anden prototype på laser-tv har Mitsubishi frembragt med deres Laser projected DLP HDTV. ^[4].Mitsubishi har allerede markedsført deres Laser-Tv på det amerikanske marked^[5].

Kilder/referencer

^February 10 2006, Laser Projectors Coming to Cell Phones and PDAs. Light Blue Optics Demonstrates Matchbox-sized PVPro™ Projector Evaluation KitCitat: "...Understand that there is no glass, noprisms,NO MOVING PARTS...runs on...less than 350mW while displaying typical video images...Color Depth: Monochrome Green at 532nm(full color available late 2006). Depth of Focus: Infinite (image remains in focus at any distance from the projector). Resolutions Supported:QCIF,CIF,VGA,NTSC,1024x512 (resolutions up to 2048x1280 includingSXGAandS-HDTVavailable upon request)... "
^11 October 2006, CNET: Laser TV unveiled in AustraliaCitat: "...Compared to LCD or plasma TVs, the benefits of rear-projection laser televisions are twice the colour range reproduction, 75 percent less power usage and half the weight of similar sized sets, according to Novalux CEO Jean-Michel Pelaprat..."
^Sep 1, 2006, optics.org: High output RGB sources promise laser TV 'by 2007'Arkiveret26. oktober 2006 hosWayback MachineCitat: "...Novalux's prototypeNecseldevices emit 3 W at 465 nm and 532 nm and 750 mW at 620 nm – all from a new package smaller than amatchbox.Necsel lasers' output is bright, speckle-free, and color-saturated, giving in clear, vibrant images that reach a larger color space than competing lighting technologies... "
^Oct 11th 2006, dvguru: Laser TV Revisited Arkiveret19. oktober 2006 hosWayback MachineCitat: "...Mitsubishi Electronics new Laser projected DLPHDTV.The new technology offers many advancements over standard DLP sets...The real advantage over Plasma, or any other HDTV for that matter, is the greater color range, and intensity... "
^Laser-Tv en realitet med Mitsubishis LaserVueLaser-Tv en realitet med Mitsubishis LaserVue

Se også

LED-TV

[1] February 10 2006, Laser Projectors Coming to Cell Phones and PDAs. Light Blue Optics Demonstrates Matchbox-sized PVPro™ Projector Evaluation KitCitat: "...Understand that there is no glass, noprisms,NO MOVING PARTS...runs on...less than 350mW while displaying typical video images...Color Depth: Monochrome Green at 532nm(full color available late 2006). Depth of Focus: Infinite (image remains in focus at any distance from the projector). Resolutions Supported:QCIF,CIF,VGA,NTSC,1024x512 (resolutions up to 2048x1280 includingSXGAandS-HDTVavailable upon request)... "

[2] 11 October 2006, CNET: Laser TV unveiled in AustraliaCitat: "...Compared to LCD or plasma TVs, the benefits of rear-projection laser televisions are twice the colour range reproduction, 75 percent less power usage and half the weight of similar sized sets, according to Novalux CEO Jean-Michel Pelaprat..."

[3] Sep 1, 2006, optics.org: High output RGB sources promise laser TV 'by 2007'Arkiveret26. oktober 2006 hosWayback MachineCitat: "...Novalux's prototypeNecseldevices emit 3 W at 465 nm and 532 nm and 750 mW at 620 nm – all from a new package smaller than amatchbox.Necsel lasers' output is bright, speckle-free, and color-saturated, giving in clear, vibrant images that reach a larger color space than competing lighting technologies... "

[4] Oct 11th 2006, dvguru: Laser TV Revisited Arkiveret19. oktober 2006 hosWayback MachineCitat: "...Mitsubishi Electronics new Laser projected DLPHDTV.The new technology offers many advancements over standard DLP sets...The real advantage over Plasma, or any other HDTV for that matter, is the greater color range, and intensity... "

[5] Laser-Tv en realitet med Mitsubishis LaserVueLaser-Tv en realitet med Mitsubishis LaserVue

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