| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a corneal shape analysis apparatus which examines a pupil by using a single apparatus. <P>SOLUTION: This apparatus is provided with: a video camera (1) which is arranged in series with an optical system provided with lenses (2 and 3); and an external Placido disk (9) is provided with a fixation LED (4), an infrared fixation LED (5), a Neon glow lamp (6), two beam splitter plates (7 and 8). An infrared LED (10) is arranged on a lateral side of the Placido disk (9) for providing grazing light for examining the pupil. Since the horizontal-direction LED (10) which is the infrared LED (10) and the fixation LED (5) are of infrared types and never interfere with a light source for corneal examination using a frequency in a visible light region. <P>COPYRIGHT: (C)2004,JPO |
