发明名称 |
Multi-wavelength infra-red LED |
摘要 |
In embodiments of multi-wavelength infra-red LED, a mobile device includes a multi-wavelength infra-red (IR) LED that projects near infra-red (NIR) light in multiple wavelengths. The multi-wavelength IR LED can be implemented as a single LED, or as a combination of LEDs packaged together as a single component for implementation in the mobile device. The mobile device can be implemented for various IR-based features, such as for iris illumination and authentication, proximity sensing, gesture detection, and for other IR-based features that each correspond to a different one of the multiple wavelengths of the NIR light. The mobile device includes a NIR filtering system to receive reflections of the NIR light and filter the multiple wavelengths of the NIR light for each of the different IR-based features of the mobile device. |
申请公布号 |
US9584738(B2) |
申请公布日期 |
2017.02.28 |
申请号 |
US201514716954 |
申请日期 |
2015.05.20 |
申请人 |
Motorola Mobility LLC |
发明人 |
Slaby Jiri;Alameh Rachid M;Willis Lawrence A |
分类号 |
H04N5/33;H04W12/06;G06K9/00;G06F3/01 |
主分类号 |
H04N5/33 |
代理机构 |
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代理人 |
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主权项 |
1. A method for utilizing a multi-wavelength infra-red (IR) LED, comprising:
projecting near infra-red (NIR) light in multiple wavelengths with the multi wavelength IR LED, including at least a wavelength that is reflected from a person; receiving reflections of the NIR light in the multiple wavelengths; and filtering the multiple wavelengths of the NIR light for IR-based features that each correspond to a different one of the multiple wavelengths of the NIR light, said filtering including the NIR light filtered for proximity sensing to detect a proximity of the person. |
地址 |
Chicago IL US |