Apparatus to measure accommodation of the eye

James Wolffsohn; Mark Prince; James  Watkins

Apparatus to measure accommodation of the eye

James Wolffsohn (Inventor)
, Mark Prince (Inventor)
, James Watkins (Inventor)

Research output: Patent

Abstract

A device for measuring a user's range of clear focus (accommodation) comprising: a display for displaying a test image to the user at a first size; a sensor for determining the separation between the display and the user; and a processor for determining the angular subtence of the image to the user and to resize the test image in order to substantially maintain the angular subtence of the image when the separation between the display and the user is varied.

Original language	English
Patent number	GB 1015282.5
IPC	A61B3/032
Publication status	Published - 14 Sept 2010

Bibliographical note

Patent not maintained

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Cite this

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title = "Apparatus to measure accommodation of the eye",

abstract = "A device for measuring a user's range of clear focus (accommodation) comprising: a display for displaying a test image to the user at a first size; a sensor for determining the separation between the display and the user; and a processor for determining the angular subtence of the image to the user and to resize the test image in order to substantially maintain the angular subtence of the image when the separation between the display and the user is varied. ",

author = "James Wolffsohn and Mark Prince and James Watkins",

note = "Patent not maintained; GB 1015282.5; A61B3/032",

year = "2010",

month = sep,

day = "14",

language = "English",

type = "Patent",

}

TY - PAT

T1 - Apparatus to measure accommodation of the eye

AU - Wolffsohn, James

AU - Prince, Mark

AU - Watkins, James

N1 - Patent not maintained

PY - 2010/9/14

Y1 - 2010/9/14

N2 - A device for measuring a user's range of clear focus (accommodation) comprising: a display for displaying a test image to the user at a first size; a sensor for determining the separation between the display and the user; and a processor for determining the angular subtence of the image to the user and to resize the test image in order to substantially maintain the angular subtence of the image when the separation between the display and the user is varied.

AB - A device for measuring a user's range of clear focus (accommodation) comprising: a display for displaying a test image to the user at a first size; a sensor for determining the separation between the display and the user; and a processor for determining the angular subtence of the image to the user and to resize the test image in order to substantially maintain the angular subtence of the image when the separation between the display and the user is varied.

M3 - Patent

M1 - GB 1015282.5

ER -

Apparatus to measure accommodation of the eye

Abstract

Bibliographical note

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