CLEAR VISION METER

PROBLEM TO BE SOLVED: To solve such a problem that it is difficult to measure an exact distance in a conventional near vision measurement, because a subject judges the point of time when a visual target, such as a Landolt ring, becomes unclear while it is getting closer to the eye. SOLUTION: By usin...

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Hauptverfasser:	TSUBOTA KAZUO, HIROZAWA AKISUKE
Format:	Patent
Sprache:	eng
Schlagworte:	DIAGNOSIS HUMAN NECESSITIES HYGIENE IDENTIFICATION MEDICAL OR VETERINARY SCIENCE SURGERY
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creator	TSUBOTA KAZUO HIROZAWA AKISUKE
description	PROBLEM TO BE SOLVED: To solve such a problem that it is difficult to measure an exact distance in a conventional near vision measurement, because a subject judges the point of time when a visual target, such as a Landolt ring, becomes unclear while it is getting closer to the eye. SOLUTION: By using a black film having four pin holes through which disappearance of the visual target is visually confirmed, near vision measurement is easily judged. The measurement is carried out by using a dark filter and switching into three steps in accordance with the degree of near vision. Thus, changes of near vision before and after the treatment of eyestrain or dry eyes, and daily changes of near vision can be checked with a clear vision meter using a portable ultrasonic wave. COPYRIGHT: (C)2009,JPO&INPIT
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SOLUTION: By using a black film having four pin holes through which disappearance of the visual target is visually confirmed, near vision measurement is easily judged. The measurement is carried out by using a dark filter and switching into three steps in accordance with the degree of near vision. Thus, changes of near vision before and after the treatment of eyestrain or dry eyes, and daily changes of near vision can be checked with a clear vision meter using a portable ultrasonic wave. 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COPYRIGHT: (C)2009,JPO&INPIT</description><subject>DIAGNOSIS</subject><subject>HUMAN NECESSITIES</subject><subject>HYGIENE</subject><subject>IDENTIFICATION</subject><subject>MEDICAL OR VETERINARY SCIENCE</subject><subject>SURGERY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2009</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBBy9nF1DFII8wz29PdT8HUNcQ3iYWBNS8wpTuWF0twMSm6uIc4euqkF-fGpxQWJyal5qSXxXgFGBgaWhmYGhpbmjsZEKQIAcAcebw</recordid><startdate>20090723</startdate><enddate>20090723</enddate><creator>TSUBOTA KAZUO</creator><creator>HIROZAWA AKISUKE</creator><scope>EVB</scope></search><sort><creationdate>20090723</creationdate><title>CLEAR VISION METER</title><author>TSUBOTA KAZUO ; HIROZAWA AKISUKE</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2009160197A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2009</creationdate><topic>DIAGNOSIS</topic><topic>HUMAN NECESSITIES</topic><topic>HYGIENE</topic><topic>IDENTIFICATION</topic><topic>MEDICAL OR VETERINARY SCIENCE</topic><topic>SURGERY</topic><toplevel>online_resources</toplevel><creatorcontrib>TSUBOTA KAZUO</creatorcontrib><creatorcontrib>HIROZAWA AKISUKE</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TSUBOTA KAZUO</au><au>HIROZAWA AKISUKE</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>CLEAR VISION METER</title><date>2009-07-23</date><risdate>2009</risdate><abstract>PROBLEM TO BE SOLVED: To solve such a problem that it is difficult to measure an exact distance in a conventional near vision measurement, because a subject judges the point of time when a visual target, such as a Landolt ring, becomes unclear while it is getting closer to the eye. SOLUTION: By using a black film having four pin holes through which disappearance of the visual target is visually confirmed, near vision measurement is easily judged. The measurement is carried out by using a dark filter and switching into three steps in accordance with the degree of near vision. Thus, changes of near vision before and after the treatment of eyestrain or dry eyes, and daily changes of near vision can be checked with a clear vision meter using a portable ultrasonic wave. COPYRIGHT: (C)2009,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record>
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subjects	DIAGNOSIS HUMAN NECESSITIES HYGIENE IDENTIFICATION MEDICAL OR VETERINARY SCIENCE SURGERY
title	CLEAR VISION METER
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