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DMD types and optic manufacturer

Pourya Torabi
Prodigy 180 points
Other Parts Discussed in Thread: DLP4710

Hi

It's a little hard for me to distinguish the different types of DMDs, So I had a couple of questions:

1- What does the color of the DMDs tell us? I know the gold ones are Industrial but what about the other ones?

2- Why are there different sizes but same resolutions? I mean what benefits d larger DMDs have over smaller ones?

3- I want to use a 1080p DMD for 3d printing, the most appropriate one is DLP-6500 as I know, can we also use a 4710 chip? Where can I find a list of optical manufacturers for 6500 and 4710 chips?

  • 0
    Intellectual 300 points
    Hello Pourya Torabi, EKB Technologies Offers different DLP Platforms for industrial including 3D printing. For UV you can find the WXGA UV E4500 MKII P2 which delivers top contrast level of 1:1400 and distortion < 0.8% (405nm and 385nm are offered) For HD Type UV LB4750-LC. For additional information please check- www.ekbtechnologies.com/e-store
  • 0
    TI__Intellectual 1815 points

    Pourya

    1. The gold "Type A" packaged DMDs are for high-performance applications that require high optical power levels or continuous exposure to wavelengths below 420 nm. The ceramic packages used for DMDs are typically optimized for a smaller size or lower cost applications.

    2.  Regarding different sizes but same resolutions,  once again the larger size DMDs with the same resolution will typically offer higher optical power handling and higher contrast ratio vs the smaller optical arrays

    3. For 3D printing applications with a 1080p array size there are many DMD  options :

    DLP4710AFQL is the smallest DMD and would offer the lowest price point but has a lower optical power handling capacity and is not rated to work long term with wavelengths below 420 nm

    DLP6500BFYE is in the middle has a higher  optical power handling capacity but is also not rated to work long term with wavelengths below 420 nm

    DLP6500BFLQ has a higher optical power capability vs. the DLP6500BFYE and is rated for continuous operation with wavelengths down to 400 nm 

    DLP9500BFLN  is the largest DMD, offers the highest optical power handling and the highest optical power support for wavelengths between 400-420 nm

    We have an optical module selection guide that can be downloaded 

  • 0 in reply to Carey Ritchey
    Prodigy 180 points
    Thank you sir, that was exactly what I needed. Just another thing that came into my mind is that some DMDs are in a diamond formations, is DLP4710 also in that formation?
  • 0 in reply to Pourya Torabi
    TI__Expert 4530 points
    Hi Pourya,

    DLP4710 is not diamond arrangement, its manhatten arrangement (45degree tilt from diamond arrangement)

    -ykc
  • 0 in reply to ykc
    Prodigy 180 points
    Thanks for your answer.
  • 0 in reply to Carey Ritchey
    Prodigy 180 points

    Regarding the life of the DMD you mentioned, what are the symptoms of the aging dmd, I mean how should we understand that the dmd needs replacements? And also is there any way to calculate the life of the DMD?

  • 0 in reply to Pourya Torabi
    TI__Mastermind 43070 points

    Hello Pourya,

    If you operate a DMD designed for the visible wavelength range and operate within the specifications of the data sheet it should continue to operate reliably.  There are temperature derating curves shown each data sheet.

    Operating outside of the specifications is not recommended.  

    Fizix

  • 0 in reply to Fizix
    Prodigy 180 points
    Thanks for your reply.