| 摘要 |
<p>PROBLEM TO BE SOLVED: To permit smooth constant velocity movement of a light radiating head even in the case where tilt or vibration is generated so as to improve the image quality. SOLUTION: A light radiating head 2 comprises a light source 3 for radiating to a subject to be radiated 4. The light radiating head 2 and a counterweight 9 have a substantially same mass. Between the light radiating head 2 and the counterweight 9, the light radiating head 2 moves along the subject to be radiated 4 as well as the counterweight 9 moves to the opposite direction with respect to the light radiating head 2, interlocking to the movement of the light radiating head 2.</p> |
