| 摘要 |
PROBLEM TO BE SOLVED: To provide an auto-focusing device whose configuration is simplified and which can focus many points at low cost. SOLUTION: In the auto-focusing device, focusing light having specified wavelength is projected to a subject from a light emitting diode 10 through a light projecting lens 11. Then, reflected signal light from the subject being the focusing light is received by sensor arrays 14a and 14b through light receiving lenses 13a and 13b. Deflection panels 12a and 12b are arranged in front of the lens 11 and the lenses 13a and 13b, so that the optical path of the focusing light having the specified wavelength is switched. The panels 12a and 12b are electrically driven and controlled by a CPU 1 through oscillators 6a and 6b. |
