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| United States Patent |
6,444,949
|
|
Suzuki
, et al.
|
September 3, 2002
|
Apparatus for producing a printer head and aperture processing device
Abstract
The present invention comprises an array lens illumination system for
shaping laser light in a band-like beam, a mask which is arranged in an
optical path of the laser light from the array lens illumination system
and on which a plurality of circular apertures are formed in a staggered
shape in accordance with an arranged state of orifices formed on an
orifice plate, a shift member which is arranged at the incident side of
the laser light rather than the mask, and which splits the laser light
incident on the mask into a plurality of beams in accordance with the
number of circular apertures and irradiates the split beams onto the
respective circular apertures of the mask, and a projecting lens for
forming an image of the laser light passing through the mask on the
orifice plate.
| Inventors:
|
Suzuki; Isao (Shizuoka-ken, JP);
Shimosato; Masashi (Shizuoka-ken, JP);
Ito; Hiroshi (Kawasaki, JP)
|
| Assignee:
|
Toshiba Tec Kabushiki Kaisha (Tokyo, JP)
|
| Appl. No.:
|
498443 |
| Filed:
|
February 4, 2000 |
Foreign Application Priority Data
| Feb 04, 1999[JP] | 11-027222 |
| Oct 19, 1999[JP] | 11-296699 |
| Current U.S. Class: |
219/121.77; 219/121.7; 219/121.73 |
| Intern'l Class: |
B23K 026/00 |
| Field of Search: |
219/121.77,121.7,121.73,121.75
|
References Cited
U.S. Patent Documents
| 5208604 | May., 1993 | Watanabe et al.
| |
| 5517000 | May., 1996 | Nishiwaki et al. | 219/121.
|
Primary Examiner: Elve; M. Alexandra
Attorney, Agent or Firm: Frishauf, Holtz, Goodman & Chick, P.C.
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