| (19) |
 |
|
(11) |
EP 0 618 078 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
04.01.1995 Bulletin 1995/01 |
| (43) |
Date of publication A2: |
|
05.10.1994 Bulletin 1994/40 |
| (22) |
Date of filing: 28.03.1994 |
|
|
| (84) |
Designated Contracting States: |
|
DE FR GB IT |
| (30) |
Priority: |
29.03.1993 JP 69521/93
|
| (71) |
Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY |
|
St. Paul,
Minnesota 55133-3427 (US) |
|
| (72) |
Inventors: |
|
- Nagashima, Masashi,
c/o Sumitomo 3M Limited
Tokyo 158 (JP)
- Chiba, Hiroyuki,
c/o Sumitomo 3M Limited
Tokyo 158 (JP)
|
| (74) |
Representative: Martin, Jean-Jacques et al |
|
Cabinet REGIMBEAU
26, Avenue Kléber
75116 Paris
75116 Paris (FR) |
|
| |
|
| (54) |
An optical scanning device |
(57) An optical scanning device characterized in that a light emitting element array (2)
and an auto focussing light source element (3) for adjusting a distance between said
light emitting element array and an object (5) to be scanned be said light emitting
element (2) array are integrated on a single chip (1) of a semiconductor substrate.