发明名称 |
Method of and apparatus for measuring the extent of clouding of the lens of a human eye |
摘要 |
The extent of clouding of the lens of a human eye is measured and quantified by directing a beam of electromagnetic radiation through the iris and against the clouded portion of the lens so that the clouded portion disperses and reflects the incident radiation. A selected part of reflected radiation which makes an angle of 10 DEG -40 DEG with the beam of incident radiation is monitored for intensity by a photoelectronic transducer whose signals are transmitted to an ammeter or to a microprocessor which latter transmits modified signals to a display unit and/or to a printer. The clouded portion of the lens can be observed through an optical system with an ocular whose axis coincides with a portion of the path of incident radiation.
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申请公布号 |
US4863261(A) |
申请公布日期 |
1989.09.05 |
申请号 |
US19870003968 |
申请日期 |
1987.01.16 |
申请人 |
INTERZEAG AG |
发明人 |
FLAMMER, JOSEF |
分类号 |
A61B3/12;A61B3/117;G01N21/47 |
主分类号 |
A61B3/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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