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High resolution phosphor persistence display

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Conundrum
Fri Jul 29 2011, 10:58PM Print
Conundrum Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
Hi all.

Seems that those Bluray lasers I bought might have another use.

Modify HP Laserjet mechanism so that the laser scans the phosphor sheet as it moves,
alllowing a high resolution display to be built.

Sound possible?

-A
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Xray
Sat Jul 30 2011, 05:10AM
Xray Registered Member #3429 Joined: Sun Nov 21 2010, 02:04AM
Location: Minnesota, USA
Posts: 288
Conundrum wrote ...

Hi all.

Seems that those Bluray lasers I bought might have another use.

Modify HP Laserjet mechanism so that the laser scans the phosphor sheet as it moves,
alllowing a high resolution display to be built.

Sound possible?

-A

I'm now sure I understand your idea. Can you describe it in more detail please? What "phosphor sheet" are you talking about?
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Pinky's Brain
Sat Jul 30 2011, 09:03AM
Pinky's Brain Registered Member #2901 Joined: Thu Jun 03 2010, 01:25PM
Location:
Posts: 837
He wants to build a CRT with phosphorescent phosphor with vertical scanning handled by mechanically moving the laser assembly from a laser printer in relation to the projection screen.

PS. I remember seeing a bit on hackaday about someone who moved fluorescent paper by an array of leds to create a moving message display, as well as a wall sized display which captured a fading image in this way for an art exhibit (but I don't remember where I saw it).
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Myke
Sat Jul 30 2011, 09:18AM
Myke Registered Member #540 Joined: Mon Feb 19 2007, 07:49PM
Location: MIT
Posts: 969
Are you thinking of doing something like this?:

Link2
or
Link2
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Xray
Sat Jul 30 2011, 02:43PM
Xray Registered Member #3429 Joined: Sun Nov 21 2010, 02:04AM
Location: Minnesota, USA
Posts: 288
Pinky's Brain wrote ...

He wants to build a CRT with phosphorescent phosphor with vertical scanning handled by mechanically moving the laser assembly from a laser printer in relation to the projection screen.

PS. I remember seeing a bit on hackaday about someone who moved fluorescent paper by an array of leds to create a moving message display, as well as a wall sized display which captured a fading image in this way for an art exhibit (but I don't remember where I saw it).

That would not be a CRT. A CRT has an electron gun and a phosphor screen within a vacuum sealed enclosure. It sounds more like a projection TV.
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