| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a dental intraoral observation apparatus capable of obtaining sharp and clear images even in a QLF (quantitative light-induced fluorescence) method. <P>SOLUTION: The dental intraoral observation apparatus includes a light source unit 11 including a white LED light source 13 and a fluorescent coloring LED light source 14 having a peak within a wavelength range of 360 nm or more and 420 nm or less; an imaging apparatus 17 receiving light emitted from the light source unit and converting the light into electric signals; wavelength adjusting means 15, 16 provided between the light source unit and the imaging apparatus and intercepting light with a wavelength component of 420 nm or less or attenuating the light quantity, and attenuating the light quantity of light with a wavelength component of 450 nm or more and 600 nm or less; and a processing means 18 processing the electric signals converted by the imaging apparatus. In a normal observation mode where only the white light LED light source is lighted, the processing means corrects received light signals according to predetermined relations, and in a QLF mode where only the fluorescent coloring LED light source is lighted, the processing means corrects received light signals according to other predetermined relations. <P>COPYRIGHT: (C)2012,JPO&INPIT |
