| 摘要 |
<p>An exposure head comprising a light shielding panel which have housing apertures in which respective LED chips are housed and a front panel which has minute apertures are placed in front of an LED panel on which the LED chips are arranged. The LED chips and bonding wires are housed in the housing apertures and protected from a medium which is an exposure object by means of the front panel. Since the exposing light from the LED chip can be applied directly to each dot while the LED chip is very close to the medium, each dot can be exposed individually without using a lens. Further, since the inside surface of each housing aperture is reflective and the leakage of the exposure beam from one LED chip from the section in which the chip is housed into the sections in which other LED chips are housed is prevented, each dot can be exposed to the high intensity exposure beam. Therefore, color bleeding, etc. is prevented and high-resolution high-quality printing is performed. A small size exposure head and a printer employing the head is provided at a low cost.</p> |
