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Difference between revisions of "Talk:Hardware info"
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Moreover there is not warning laser label on Kinect, which is mandatory even for class 1 products. | Moreover there is not warning laser label on Kinect, which is mandatory even for class 1 products. | ||
I suppose they use an high power IR LED that illuminates a matrix of microlenses representing the structured dot pattern with a secondary lens that projects the image of the focused dot matrix (as described in the US20100118123 patent from Prime Sense LTD http://www.primesense.com/ which is the company that conceived Kinect). | I suppose they use an high power IR LED that illuminates a matrix of microlenses representing the structured dot pattern with a secondary lens that projects the image of the focused dot matrix (as described in the US20100118123 patent from Prime Sense LTD http://www.primesense.com/ which is the company that conceived Kinect). | ||
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| + | :It definately is a laser and the power is up to 106mW measured directly at the projector with unmounted housing. The wavelength is 828.6nm. Nevertheless the Kinect is a class 1M laser product because of the high divergence of the light. That means that the illumination at 100mm distance into a 7mm pinhole must not exceed 0.71mW (using DIN EN 60865-1 the maximum irradiation for laser class 1M is 3.9e-4 * C4 * C7; C4=10^(0,002*(830nm-700nm))), C7=1)--[[User:Sk|Sk]] 15:18, 9 March 2012 (GMT) | ||
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| + | == Idea for powering up image board. == | ||
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| + | It was suggested that one could consider removing the peltier element to reduce the current draw of the image board but I don't know what it is nor need to know. Because if you want more than 750mA of power at 5V from a USB only port, why not consider looking into a Y-cable. It can source power from two USB ports and possibly give a max amp of 1A which should be sufficient for this current draw. Let me know if this is not a feasible idea so I won't keep thinking it is. Thanks. | ||
Latest revision as of 17:18, 9 March 2012
For safety reasons Kinect probably don't use a 60mW IR laser. This would be a class 3 laser product which can be very dangerous. Moreover there is not warning laser label on Kinect, which is mandatory even for class 1 products. I suppose they use an high power IR LED that illuminates a matrix of microlenses representing the structured dot pattern with a secondary lens that projects the image of the focused dot matrix (as described in the US20100118123 patent from Prime Sense LTD http://www.primesense.com/ which is the company that conceived Kinect).
- It definately is a laser and the power is up to 106mW measured directly at the projector with unmounted housing. The wavelength is 828.6nm. Nevertheless the Kinect is a class 1M laser product because of the high divergence of the light. That means that the illumination at 100mm distance into a 7mm pinhole must not exceed 0.71mW (using DIN EN 60865-1 the maximum irradiation for laser class 1M is 3.9e-4 * C4 * C7; C4=10^(0,002*(830nm-700nm))), C7=1)--Sk 15:18, 9 March 2012 (GMT)
Idea for powering up image board.
It was suggested that one could consider removing the peltier element to reduce the current draw of the image board but I don't know what it is nor need to know. Because if you want more than 750mA of power at 5V from a USB only port, why not consider looking into a Y-cable. It can source power from two USB ports and possibly give a max amp of 1A which should be sufficient for this current draw. Let me know if this is not a feasible idea so I won't keep thinking it is. Thanks.
