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Tuesday, September 15, 2020

Intel LiDAR Teardown Reveals BOM of $35.08

TechInsights publishes a teardown of Intel RealSense L515 LiDAR:

"The Intel RealSense L515 is rated for indoor use and can provide depth measurements between 0.25 m and 9 m with a field of view of 70° x 55°. Its LiDAR unit consists of an IR (860 nm) laser reflecting off a scanning MEMS mirror, coupled with an IR photodiode. It is also fitted with an RGB camera which provides a 1080p resolution at 30 fps.

The RealSense L515 is housed in a compact and lightweight “hockey puck” enclosure (61 mm x 26 mm / 100 grams), which makes it ideal for robotics applications, as it can be more easily incorporated into a product."

9 comments:

  1. What is the purpose of the strange, but nice shape of the metal in 4th figure ?

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  2. That is the scanning MEMS mirror.

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  3. Looks like ST logo inthe 4th figure

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    1. Of course this is ST. ThechInsights writes:

      "TechInsights was able to remove an intact STMicroelectronics PM56A die from the laser scanning module. The die is measured at 3.53 mm x 2.8 mm.

      Compared to its predecessor the PM54A, analyzed by TechInsights, the mirror found in the Intel RealSense L515 does not have a static frame, rather all static parts (such as PADs, routing metals, anchors) are inside the maximum in-plane extension defined by the Lorentz coil. This solution allows to have a more compact design, despite the high Field of View reported by Intel of 70° x 55°."

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  4. Only one mirror? Does this mean it has a array of photodiodes?

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    Replies
    1. Could that MEMS mirror be capable of scanning in 2 axes?

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    2. Only one photodiode cover all FOV.They use something like fisheye lense.

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  5. Replies
    1. Cool, but how? I would love to read more about those fast MEMS

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