Under the skin: Lumotive takes lidar to the next level
Further developments led to the miniaturisation of the concept by substituting hefty revolving scanners for laser arrays or MEMS mirror lidar. The MEMS systems involve tiny revolving mirrors to reflectively ‘steer’ the laser beam around a scene.
In contrast, the Lumotive Meta-Lidar Platform is based on Light Control Metasurface solid-state, beam-steering chips to enable the deflection, or ‘steering’, of a laser source without the need for any moving parts. A metasurface is one that can change its condition under electronic control. In this case, the reflecting surface is liquid-crystal-based and can be made from conventional materials using well-established manufacturing techniques. The surface is software controlled and can be configured for different applications instead of making mechanical changes to the chip. A second LCM receives the reflected laser pulse, which is processed to build up a high-definition picture of the scene. The Meta-Lidar is scalable, so it can be made for both short- and long-range use.
Earlier this year, Lumotive and automotive lighting specialist ZKW showed a fully functional headlight unit incorporating a Meta-Lidar Platform M30 module to illustrate just how well it can be integrated into vehicles. The high-res M30 is the size of a golf ball and has a 20-metre range and a wide field of view. It’s the first in a series of modules that will have a range of up to 200 metres and can identify forms as small as 1cm3 for integration into phones and other devices.
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