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Rear Projection Image Path

Question asked by Daen Hendrickson on Dec 3, 2010
Latest reply on Feb 2, 2011 by Kevin Dahlquist

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I am using SW2010 SP4.

I am working on a rear projection display system. This system uses a hi definition projector to bounce the image off some mirrors before illuminating a translucent screen. There are multiple projectors and light paths and lots of mechanical structure holding it all in place. Unexpected shadows are always a design challenge.

I have not used any of the photorealism features in SW. So I am wondering if you might be able to put a light source in to mimic the projector output and actually look at the rendered image for shadows on the screen? Or is this way beyond the software ability? I would need to be able to shape the light source output to mimic a projector output (hits the wall in a 16:9 rectangle). The light path would need to be able to "recognize" a mirrored/reflective surface and become reoriented after bouncing off the mirror.

I look forward to any comments regarding the feasibility of an approach like this.

Thanks in advance.

Daen

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Rob Rodríguez Dec 3, 2010 2:34 PM

I believe you'd want to have a look at OptisWorks. http://www.optisworks.com/

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Harold Brunt Dec 3, 2010 4:13 PM

First off let me state that I do not have PV360 or any other rendering software so I'm not certain of the capabilities of those packages. My first thought is that a rendering software is not the right tool but that a ray trace / lighting software is. I use the OptisWorks Add-In for just that type of simulation. My software configuration will show where the light is going and what the distribution will be on the screen as viewed by an operator. I've modeled DLP systems effectively using the software.

http://www.optis-world.com/index.htm

For reference, this is a simple LED illuminator with a couple elements including a mirror. There are two .1mm diameter specs of dirt placed along the path.

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Daen Hendrickson @ Harold Brunt on Dec 9, 2010 11:47 AM

Harold & Rob,

Thanks much for the suggestion. Could you give me an idea of the pricing range for a seat of this software?

Daen

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Harold Brunt @ Daen Hendrickson on Dec 9, 2010 12:23 PM

The software can be configured as needed so the price range is somewhat hard for me to pin down. I would suggest contacting OptisNA directly for a quote. I believe the contact info is on the website. If you would prefer, you can contact me via the email address in my profile and I'll send you the contact info for the rep at OptisNA (assuming you are in the US or North America that is).

Harold

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Kevin Dahlquist Feb 2, 2011 10:38 AM

I have a similar question today, but my application is much simpler, and though my source image is lighted and will emit some light it is not intended as a full on projector. Overall, the application involves passive reflection of an LCD image. I don't have the same concerns for shadows or optical defects, but I do want to specify that this source image emits a lighted image. Is there a way to do this within solidworks? I will set my ray tracing to 3-4x I think that might work.

Thanks for any help!

-k

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Rob Rodríguez Dec 3, 2010 2:34 PM
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I believe you'd want to have a look at OptisWorks. http://www.optisworks.com/
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Harold Brunt Dec 3, 2010 4:13 PM
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First off let me state that I do not have PV360 or any other rendering software so I'm not certain of the capabilities of those packages. My first thought is that a rendering software is not the right tool but that a ray trace / lighting software is. I use the OptisWorks Add-In for just that type of simulation. My software configuration will show where the light is going and what the distribution will be on the screen as viewed by an operator. I've modeled DLP systems effectively using the software.

http://www.optis-world.com/index.htm

For reference, this is a simple LED illuminator with a couple elements including a mirror. There are two .1mm diameter specs of dirt placed along the path.

Message was edited by: Harold Brunt
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- Daen Hendrickson @ Harold Brunt on Dec 9, 2010 11:47 AM
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  Harold & Rob,
  
  Thanks much for the suggestion. Could you give me an idea of the pricing range for a seat of this software?
  
  Daen
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  - Harold Brunt @ Daen Hendrickson on Dec 9, 2010 12:23 PM
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    The software can be configured as needed so the price range is somewhat hard for me to pin down. I would suggest contacting OptisNA directly for a quote. I believe the contact info is on the website. If you would prefer, you can contact me via the email address in my profile and I'll send you the contact info for the rep at OptisNA (assuming you are in the US or North America that is).
    
    Harold
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Kevin Dahlquist Feb 2, 2011 10:38 AM
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I have a similar question today, but my application is much simpler, and though my source image is lighted and will emit some light it is not intended as a full on projector. Overall, the application involves passive reflection of an LCD image. I don't have the same concerns for shadows or optical defects, but I do want to specify that this source image emits a lighted image. Is there a way to do this within solidworks? I will set my ray tracing to 3-4x I think that might work.
Thanks for any help!
-k
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Rear Projection Image Path

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