PUPIL MEASURING DEVICE - HAMAMATSU PHOTONICS KK

Title:

PUPIL MEASURING DEVICE

Document Type and Number:

WIPO Patent Application WO/2002/003853

Kind Code:

A1

Abstract:

A pupil measuring device comprising a guide (1d) disposed in a space permitting observation of the background from the eyes (E), an illuminating system (1g) for illuminating a guide moving device (1e) and the eyes (E) from the background side with the guide (1d) positioned between the eyes (E) and the background, two cameras (A, B) respectively imaging two pupils (PP), an operation means (2a-2e) for operating the areas or diameters of respectively imaged two pupils from image signals of the two cameras (A, B), and a display unit (3) for displaying on the same screen graphs showing the positions of the guide (1d) with respect to the operated areas or diameters, or time changes corresponding to the positions.

Inventors:

HAKAMATA NAOTOSHI (JP)

Application Number:

PCT/JP2001/005880

Publication Date:

January 17, 2002

Filing Date:

July 06, 2001

Export Citation:

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Assignee:

HAMAMATSU PHOTONICS KK (JP)
HAKAMATA NAOTOSHI (JP)

International Classes:

A61B3/11; (IPC1-7): A61B3/11

Foreign References:

JPH11225966A	1999-08-24
JP2000262475A	2000-09-26
JPH0928672A	1997-02-04
JPH0415032A	1992-01-20

Other References: