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System for optical wireless power supply

An optical wireless, optoelectronic technology used in laser-based transmission systems to transmit optical power to mobile electronic devices in a home environment, which can solve problems such as reducing the cost and size of optical systems

Active Publication Date: 2019-01-04
WI CHARGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0027] Another limitation of prior art systems is that they typically use lasers with good beam quality (low m2 values) together with large optics to achieve high efficiency (e.g. US 6,407,535 B1 and US 6,534,705 B2 use wide laser beams aperture), while US 5,260,639 uses a wavelength of 0.8um to allow small optics, reducing the cost and size of the optical system

Method used

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  • System for optical wireless power supply
  • System for optical wireless power supply
  • System for optical wireless power supply

Examples

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Embodiment Construction

[0181] In view of the above considerations, an exemplary embodiment of the optical wireless power supply system of the present invention can be adjusted to be located at 6940cm -1 The first harmonic of the C-H absorption is located at 8130cm with -1 The system works between the C-H absorption of the second harmonic. The harmonic bands are lesser known bands, contain significantly less chemical information, result from essentially forbidden quantum mechanical transitions, and are only allowed due to complex mechanisms. It therefore provides a broad weak absorption band, which is precisely preferred for this application, but is significantly less found for analytical chemistry. The broad nature of the band allows the detection of various polymer compositions, while the weak absorption allows the system to continue to operate even in the vicinity of organic dirt and fingerprints. This makes these wires significantly less useful for the typical application of absorption measurem...

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Abstract

A system incorporating safety features, for optical power transmission to receivers, comprising an optical resonator having end reflectors and a gain medium, a driver supplying power to the gain medium, and controlling its small signal gain, a beam steering apparatus and a controller to control at least the beam steering apparatus and the driver. The controller responds to a safety risk occurringin the system, by outputting a command to change at least some of the small signal gain of the gain medium, the radiance of the optical beam, the power supplied by the driver, the scan speed or the scan direction and position of the beam steering apparatus, or to register the scan pose which defines the location of said optical-to-electrical power converter. The controller may also ensure a high overall radiance efficiency, and may warn of transmitted power not received by a targeted receiver.

Description

technical field [0001] The present invention relates to the field of wireless power transfer, and is particularly applicable to laser-based transfer systems for transferring optical power to mobile electronic devices in a home environment. Background technique [0002] There has long been a need to transmit power to remote locations without the need for a physical wired connection. This need has become important in recent decades with the proliferation of portable electronic devices that operate from batteries that require periodic recharging. These mobile applications include mobile phones, laptops, cars, toys, wearable devices and hearing aids. Currently, the capacity of state-of-the-art batteries and typical battery applications in intensively used smartphones is such that batteries may need to be charged more than once per day, the need for long-range wireless battery recharging is significant. [0003] Battery technology has a long history and is still evolving. Benj...

Claims

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Application Information

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IPC IPC(8): H04B10/80
CPCH02J50/30H02J7/35H02S50/10H02J7/00036H04B10/807Y02E10/50H04B10/806H04B10/85H02J50/60H01S3/042H01S3/09H01S3/1611
Inventor L·戈朗A·斯利波伊O·纳米亚斯R·萨基O·阿尔珀特O·R·莫尔
Owner WI CHARGE