Re: [Vo]: Optics question

2007-01-10 Thread Harry Veeder
Other display technologies in development or soon to be marketed include SED (surface conduction electron emission) and nanotube TV... http://news.com.com/Carbon+TVs+to+edge+out+liquid+crystal,+plasma/2100-1041_ 3-5512225.html and OLED (organic light emitting diodes)...

Re: [Vo]: Optics question

2007-01-10 Thread Jed Rothwell
Mike Carrell wrote: One-paragraph articles about laser illuminators don't give all the relevant data. On the other hand, there is more detail in the rest of the article. - Jed Mike Carrell -- As Hoyte Stearns pointed out, upcoming DLP projection

Re: [Vo]: Optics question

2007-01-09 Thread Robin van Spaandonk
In reply to Mike Carrell's message of Mon, 8 Jan 2007 17:01:58 -0500: Hi, [snip] There is a misunderstanding of the nature of DLP technology. The active element is an array of tiny mirrors created by silicon machining techniques, one for each pixel. Each mirror can be tilted by a small angle

Re: [Vo]: Optics question

2007-01-09 Thread Mike Carrell
A bit of history. The first color TV system approved by the FCC was from CBS, which involved a color wheel in front of the CRT, or a belt going around the whole tube. This limited the CRT size, of course, and either slowed the refresh rate or demanded more transmission bandwidth. In a

Re: [Vo]: Optics question

2007-01-09 Thread Jed Rothwell
As Hoyte Stearns pointed out, upcoming DLP projection televisions will use an array of lasers instead of a bright light and color wheel. See: http://www.technologyreview.com/NanoTech/17651/ . . . the main advantage that lasers offer over traditional projection is an increased richness in

Re: [Vo]: Optics question

2007-01-09 Thread Mike Carrell
Part of the encoding process in compatable color television is transformationof the RGB signals from the camera into a two dimensional color space diagram with coordinates of chrominance and luminance. This is also used in JPEG encoding. The spectral sensitivity of the camera, projector, and

Re: [Vo]: Optics question

2007-01-08 Thread Michel Jullian
PROTECTED] To: vortex-l@eskimo.com Sent: Monday, January 08, 2007 3:20 AM Subject: Re: [Vo]: Optics question In reply to Hoyt A. Stearns Jr.'s message of Sat, 6 Jan 2007 17:41:40 -0700: Hi, [snip] In a digital light processing (DLP) display, a light source (soon to be a tri color laser) projects

Re: [Vo]: Optics question

2007-01-08 Thread Mike Carrell
There is a misunderstanding of the nature of DLP technology. The active element is an array of tiny mirrors created by silicon machining techniques, one for each pixel. Each mirror can be tilted by a small angle under control from a TV signal. That tilt determines wihether the light falling on

Re: [Vo]: Optics question

2007-01-08 Thread Michael Foster
Mike Carrell wrote: There is a misunderstanding of the nature of DLP technology. The active element is an array of tiny mirrors created by silicon machining techniques, one for each pixel. Each mirror can be tilted by a small angle under control from a TV signal. That tilt determines

Re: [Vo]: Optics question

2007-01-08 Thread Terry Blanton
On 1/8/07, Mike Carrell [EMAIL PROTECTED] wrote: There is a misunderstanding of the nature of DLP technology. The active element is an array of tiny mirrors created by silicon machining techniques, one for each pixel. You forget the spinning light filter for RGB. Truly a rube goldberg

Re: [Vo]: Optics question

2007-01-07 Thread Robin van Spaandonk
In reply to Hoyt A. Stearns Jr.'s message of Sat, 6 Jan 2007 17:41:40 -0700: Hi, [snip] In a digital light processing (DLP) display, a light source (soon to be a tri color laser) projects on an array of movable mirrors. The light for the dark parts of the image are sent to a beam dump. That

[Vo]: Optics question

2007-01-06 Thread Hoyt A. Stearns Jr.
In a digital light processing (DLP) display, a light source (soon to be a tri color laser) projects on an array of movable mirrors. The light for the dark parts of the image are sent to a beam dump. That seems wasteful. Is it possible to collect that light and re-introduce it into the primary