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  • TI Thinks Resolved

DLPDLCR2010EVM: Technical specification of switching speed for EVMs

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Replies: 2

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Part Number: DLPDLCR2010EVM

Hi Team,

We received an inquiry from a customer and we would like to consult his concerns with you. Here are the details of his inquiry.

I would like to use a DLP chip to produce directed beams/rays of light. In the application the light angel is from importance, and beams/rays with different directions must be produced.

The question is, is the DLP switching characteristic exact enough to calculate the reflection angel of one micro mirror during its switching cycle, or can a DLP chip only be used as a binary direction changer, with no intermediate locations.

im aware there exists at least some chips with more then two discret positions, for virtual 4K image creation. They can shift to pixel_position_1, pixel_position_2 and off_position.

do chips exist with more discret positions?

Regards,

Danilo

  • Hi Danilo,

    I will discuss about your query within our team and get back to you soon.

    Thanks and regards,

    Mayank

  • In reply to Mayank Khandelwal:

    Hello Danilo,

    The DMD mirrors have only two operational states - ON and OFF. The switching time for mirror is in range of 5-10 us second and it is can not be used for steer light. 

    You wrote -

    im aware there exists at least some chips with more then two discret positions, for virtual 4K image creation. They can shift to pixel_position_1, pixel_position_2 and off_position.

    TI response - In this configuration, an external actuator shifts the whole image by 1/2 pixel.  It is designed for display application. The input image goes through a image processing pipeline. You can not use it for controlling or steering light source.

    If your application requires light modulation and steering light into different angle then I would suggest that you use DMD along with two axis mirror to modulate and steer light.

    regards,

    Vivek

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