眼球内物質測定装置
- 专利权人:
- 株式会社豊田中央研究所
- 发明人:
- 米村 正寿,伊藤 博,加藤 覚
- 申请号：
- JP2007316944
- 公开号：
- JP5200518B2
- 申请日:
- 2007.12.07
- 申请国别(地区):
- JP
- 年份:
- 2013
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To make it possible to accurately measure the concentration of substance to be measured in an eyeball.
SOLUTION: The reflecting light of the light of a wavelength of &lambda1 in which the absorbing property of the light by ethanol does not appear is detected the a first light detector and a second light detector (100 to 106), and the ratio of respective light receiving quantities is calculated (108). The visual line direction of the eyeball of a person to be measured is specified (112) from the calculated ratio of the light receiving quantities, and the light path length in aqueous humor of a light of a wavelength of &lambda2 form a first light source 12 is estimated (114) from the incident angle of the first light source 12 relative to the specified visual line direction and a light path length determining table of a table recording section 36, when the calculated ratio of the light receiving quantities is within a predetermined range (110). The reflected light of the light of wavelength of &lambda2 in which the absorbing property of the light appears is detected by a first light detector (116, 118) and the ethanol concentration in the aqueous humor of the eyeball is calculated (120) by using the respective light receiving quantities detected by the first light detector, the estimated light path length, and known absorbing coefficients.
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- 来源网站：
- 中国工程科技知识中心
