• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 28 subscribers
  • Views 462 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Using DLP to focus high power LEDs

Bill Paseman1
Prodigy 20 points
Other Parts Discussed in Thread: DLP9000, DLP9500

Is there an App note describing how to use a TI Mems to direct several separate incoming laser diode beams to a common target?

If not, a few questions:

1) what are the physical dimensions of the biggest array?

2) What thermal characteristic of the part provides my biggest constraint? E.g.

- If I bolt it to a heat sink, how much thermal flux can the part tolerate?

- What is the reflection efficiency?

I'd like to do a calculation like : part is 4/16 x 3/16 of an inch wide.  This allows 4 x 3 1/16th inch beams.

Reflection efficiency is 59/60ths and it can tolerate 1 Watt flux,

so I can focus 3 x 4 x 5W laser diodes on it,

since this is 60W and (1 - 59/60ths) of 60 is 1 W.

Thanks

  • 0
    TI__Expert 6370 points

    Hi Bill,

    1) Check our our products page for our offerings (you can sort by size). If you mean the largest resolution, it is the DLP9000, if you mean the largest size area, it is the DLP9500 (the micromirrors vary in size between these devices).

    2) Each device has a datasheet which should be able to answer your questions here. The Absolute Maximum table and the Recommended Operating Characteristics table will give you thermal limitations. There is also a section in each datasheet that allows you to calculate the amount of energy you can put on the device before reaching this thermal limitation.

    Let me know if you have followup questions, and if you indicate which device you are looking at, I can be more specific.

    Best regards,

    Trevor