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DLPDLCR4710EVM-G2: Application and technical details (DLP® LightCrafter Display 4710 EVM-G2)

PiotrGiza
Prodigy 140 points
Part Number: DLPDLCR4710EVM-G2
Other Parts Discussed in Thread: DLP4710, DLP9500, DLPC3479, DLP-OMM-SEARCH, DLP4710EVM-LC,

Hi everyone,

I was forwarded to this forum by the TI Customer Support. I got familiar with the materials I was provided with. My questions concerns mostly the DLP® LightCrafter Display 4710 EVM-G2.

Our company leads a project of a 3D scanner. Recently we got to the point where we need to buy some new equipment. We would need some help choosing hardware that meets our needs, especially choosing right projector. The requierements are as follows:

1) possibility of scanning both very small objects (few or more millimeters) and bigger objects (20-40cm) - the problem is mostly about lenses (focus adjustment or replacement possibility)  and light power, the projector-object distance differences would be significant in this case. Is it possible to achieve such versatility with this projector? If no, is it possible with any other TI product?

2) 1920x1080 resolution - as far as I understand, this condition is met with DLP4710, DLP6500 and DLP9500. Probably those three products should be taken into consideration,

3) High refresh rate - according to the materials this is completely not a problem, the DLP products seems to provide very good frame rate (120Hz, 1446Hz and 2893Hz accordingly),

4) Hardware camera trigger - it seems that it's present in all mentioned products, althought there's lack of detailed technical specification (which is of great improtance in our case),

Any help with choosing right projector as well providing technical specs of triggers would be apprecated. The last question is, assumign that the DLP® LightCrafter Display 4710 EVM-G2 could be considered as right choice, could you recommend some camera models that would be a good match to this hardware according to your experience?

The whole matter is about developing a commercial product that's most probably going to be manufactured and sold in hundreds, so choosing right hardware is crucial for us and our clients.

Best regards,

Piotr (B3D s.c. Software Engineer)

  • 0
    TI__Intellectual 1825 points

    Hi Piotr, 

    Thank you for your post and interest in DLP technology! Please allow our team some time to look into your questions so we can get the most accurate response to you. For now, I have a few initial questions and comments that will help us gather information for your needs.  

    For point #2, all three of these DMDs have 1920x1080 resolution, so you are correct. 

    In your post, you asked about choosing the right projector for your company's project. Are you looking to buy an optical engine and design the electronics around the engine, or looking to integrate a complete solution (engine + electronics) into your product? 

    Thanks, 

    Brandon

  • 0 in reply to Brandon Seiser
    Prodigy 140 points

    Hi Brandon,

    thanks for quick response. We are looking for a complete solution.

    BR,

    Piotr

  • 0 in reply to Brandon Seiser
    Prodigy 140 points

    This is an example of the smallest objects that would be scanned:

  • 0 in reply to PiotrGiza
    TI__Expert 5485 points

    Hi Piotr,

    Thanks for your interest in DLP technology. I'm part of the team supporting customers using the DLP4710/DLPC3479 chipset. Regarding your requirements:

    1. This would depend on the optical module used in the projector. Optical modules are designed by TI's third-party design partners. Let us check on our side on whether we currently have a solution that fits your requirement. You can also take a look at our currently available optical modules here or use the Optical Module Search tool (DLP-OMM-SEARCH) to identify suitable modules.

    2. Yes, all three DMDs support 1080p resolution. While the DLP4710 is geared towards smaller Light Control applications (like handheld or desktop 3D scanners) the other products are intended for larger industrial applications.

    3. For the DLP4710, the max supported frame rate depends on the type of patterns to be projected. Please take a look at this FAQ for more information.

    4. Do you want the camera to trigger the projector or vice versa? DLP4710 supports trigger signals for both cases.

    Regarding the EVM, the DLPDLCR4710EVM-G2 is intended for Display applications only. Please take a look at its Light Control variant, the DLP4710EVM-LC. For camera, we use the FLIR: GS3-U3-23S6M-C for testing. Please note that this camera only supports up to around 125 Hz.

    Regards

    Azad

  • 0 in reply to Azad
    Prodigy 140 points

    Hi Azad,

    thanks for your answer.

    It would be enough to have projector to triggering the camera. If the equipment supports both cases, that's even better.

    We have chosen the DLP4710EVM-LC. According to documentation, the focus range is 40-120 inch (with image diagonal size 10-100 inch, respectively). Unfortunately those values does not fit our needs. Is there a possibility to replace original lenses with custom ones?

    Best regards,

    Piotr

  • 0 in reply to PiotrGiza
    TI__Expert 5485 points

    Hi Piotr,

    You'd require a different optical engine to support this. We have quite a few optical module suppliers selling optical engines using DLP4710 that fit different needs. Please use the Optical Module Search tool (DLP-OMM-SEARCH) to identify a suitable engine of your requirement.

    Regards

    Azad

  • 0 in reply to Azad
    Prodigy 140 points

    Hi Azad,

    I've contacted the european distributor Mouser about ordering different configuration or buying projector and lenses separately. Unfortunately there is no such possibility That's not good news since it's quite a difference between buying custom lenses only and being forced to buy whole optical engine to have different focus ranges (especially from Asia via strange sites marked as infected/dangerous by the antivirus software) . Furthermore, the lens mount type appears non-standard, so there won't be an easy way to customize the projector. Anyway, it's probably worth a try.

    Best regards,

    Piotr