PUPIL DETECTING DEVICE AND PUPIL DETECTING METHOD

Title:

PUPIL DETECTING DEVICE AND PUPIL DETECTING METHOD

Document Type and Number:

Japanese Patent JP2008132160

Kind Code:

A

Abstract:

To enhance the precision of pupil detection and to realize the miniaturization of the whole device.

A pupil detecting device 1 has a light source 3 irradiating illuminating light and a camera 2 photographing the bright pupil image and the dark pupil image of an object person. The camera 2 is equipped with: a photographing element 6 photographing each of the bright pupil image and the dark pupil image; an opening portion 8 arranged facing the object person and for introducing the image of the object person into the photographing element 6; and an objective lens 7 arranged between the opening portion 8 and the photographing element 6 and forming the bright pupil image and dark pupil image toward the photographing element 6. The light source 3 has a plurality of light emitting elements 3a arranged along the fringe of the opening portion 8 outside of the opening portion 8. The light emitting elements 3a have containers 10 at least the front faces of which are formed of a light transmitting material and LED tips 11a, 11b arranged in the front faces of the same so as to have common directivity and emitting the illuminating light of center wavelength of 850 nm and the illuminating light of center wavelength of 950 nm toward the object person.

More Like This:

JP2023547310	System and method for eye tracking in head-mounted devices using low coherence interferometry
JP2022132311	AUGMENTED REALITY DISPLAY SYSTEM FOR EVALUATION AND MODIFICATION OF NEUROLOGICAL CONDITIONS, INCLUDING VISUAL PROCESSING AND PERCEPTION CONDITIONS
WO/2012/167123	METHOD AND APPARATUS ACCOUNTING FOR INDEPENDENT COGNITIVE CAPACITIES IN THE RIGHT VS. LEFT HALF OF VISION

Inventors:

EBISAWA YOSHINOBU

Application Number:

JP2006320587A

Publication Date:

June 12, 2008

Filing Date:

November 28, 2006

Export Citation:

Click for automatic bibliography generation Help

Assignee:

UNIV SHIZUOKA NAT UNIV CORP

International Classes:

A61B3/113

Domestic Patent References:

JPH02138673A	1990-05-28
JP2002513176A	2002-05-08
JPS51145869U	1976-11-24
JPS4973369U	1974-06-25
JPS5483873U	1979-06-14
JPH10221016A	1998-08-21
JP2005269891A	2005-09-29

Attorney, Agent or Firm:

Yoshiki Hasegawa
Shiro Terasaki
Ichira Kondo
Yuji Suwa

Previous Patent: SLOT MACHINE WHICH CARRIES OUT ONE GAME ARRANGED TO COVER RESULTS OF LOTTERIES DONE PLURAL TIMES BAS...

Next Patent: SOFT COVER FOR CAMERA