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Light Detector

A technology of light detectors and photoelectric detectors, applied in photometry, optical radiation measurement, instruments, etc.

Active Publication Date: 2014-09-17
SIGNIFY HLDG BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These photodetectors are typically equipped with a large bandwidth for optimal signal detection, but provide limited user experience for good detection in certain application scenarios

Method used

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Examples

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Embodiment Construction

[0026] According to a first embodiment of the photodetector, as figure 1 As illustrated in , the light detector 100 includes: a photodetector 102 arranged to detect encoded light; an image sensor 104 ; and a screen 106 . The field of view (FOV) of photodetector 102 is within the FOV of image sensor 104 . That is, the FOV of photodetector 102 is as wide as or narrower than the FOV of image sensor 104 , and photodetector 102 and image sensor 104 point in the same direction. According to this embodiment, the image sensor 104 and the screen 106 are comprised in a single first unit 108, such as a smartphone, wherein the image sensor 104 is a common built-in camera arranged at the back of the smartphone 108, And the screen 106 is a normal screen on the front of the smart phone 108 . The photodetector 102 is included in a separate second unit 110 . The smartphone 108 has been adapted, mainly through added software, to connect with the second unit 110 , which in turn has been desig...

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Abstract

The present invention relates to a light detector arranged to detect coded light emitted from at least one light source. The light detector (100) includes a photo detector (102), which is arranged to detect the coded light. The light detector further has an image sensor (104), and a screen (106), wherein a field of view of the photo detector is within the field of view of the image sensor. The light detector is arranged to display an image captured by the image sensor and comprising a light source, the coded light of which is detected by the photo detector, on the screen. The present invention also relates to a method of detecting light emitted from at least one light source.

Description

technical field [0001] The invention relates to a light detector arranged to detect coded light emitted from at least one light source, the light detector comprising a photodetector arranged to detect coded light. Background technique [0002] Light detectors arranged to detect coded light emitted from a light source are typically based on using a single photodetector, typically a photodiode, to capture the light and convert it into an electrical signal to be further processed. These photodetectors are typically equipped with a large bandwidth for optimal signal detection, but provide limited user experience for good detection in certain application scenarios. The user has to point very precisely, like a sniper. The latter is due to the fact that, in order to avoid crosstalk between the lamps, the photodetectors are equipped with optics that limit their field of view (FOV) and aperture (aperture) in order to ensure that essentially only Light from one lamp reaches a photod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02
CPCG06K7/1439G06K7/14G01J1/0266H05B47/10
Inventor L.弗里F.J.德布鲁伊恩T.格里蒂
Owner SIGNIFY HLDG BV