Eye tracking device

An eye-tracking and eye-based technology, which is used in eye-testing equipment, instruments, televisions, etc., and can solve problems such as difficulty in manufacturing, increased risk of visual defects, and impact on image acquisition performance and accuracy.

Pending Publication Date: 2019-05-24
APTIV TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This requires a two-part design of the cover, however, such a two-part design is difficult to manufacture and can lead to visual defects in the cover, inter alia due to welding lines, contamination, sink marks and / or unfavorable pouring point positions increased risk
This visual defect may also affect image acquisition performance and / or accuracy

Method used

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Examples

Experimental program
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Embodiment Construction

[0045] figure 1 A schematic cross-sectional view of an eye tracking device 10 according to an embodiment of the present invention is shown. The eye tracking device comprises an illuminator 12 for illuminating a human eye, which is not shown here. The illuminator 12 may consist of a plurality of light sources 14 . The light source 14 may be configured to emit infrared light, in particular near infrared light. The eye tracking device 10 also includes an imaging device 16 for detecting light reflected by a person's eye. The imaging device 16 may include a lens 18, in Figure 5 to Figure 8 The lens 18 is best shown schematically in .

[0046] also, figure 1 The eye tracking device 10 in includes a cover 20 for covering the illuminator 12 and the imaging device 16 . According to the present invention, the cover 20 includes a light leakage prevention structure 22 for preventing light leakage between the illuminator 12 and the imaging device 16 through the cover 20 . The follo...

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PUM

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Abstract

Eye tracking device, in particular for the detection of a driver's visual behaviour, comprises: an illuminator for illuminating a person's eye, an imaging device for detecting light reflected by the person's eye, and a cover for covering the illuminator and the imaging device, the cover comprising a light leak prevention structure for preventing light leaks between the illuminator and the imagingdevice through the cover.

Description

technical field [0001] The invention relates to an eye-tracking device, in particular for detecting the visual behavior of a driver. Background technique [0002] Drowsiness and fatigue in motor vehicle drivers may reduce the driver's ability to control the vehicle, natural reflexes, recognition and perception. Such a decrease in the level of alertness of the driver can be observed, for example, when driving at night or can be caused by excessive driving, which ultimately leads to increased danger. It is known to reduce the risk of accidents with driver assistance systems capable of detecting drowsiness and fatigue of the driver. Such driver assistance systems can use eye-tracking technology because human eyes contain information about conditions such as gaze, concentration levels and fatigue levels. [0003] The accuracy and robustness of eye-tracking driver assistance systems depend on the consistency of real-time acquisition of face images against variable and complex b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/00
CPCA61B3/113A61B5/18A61B5/163G06V20/597H04N23/50H04N23/56
Inventor A·波拉克
Owner APTIV TECH LTD
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