Back to results
US 2001/0055006 A1Published application
Optical scanning-type touch panel
AssigneeFujitsu Limited
InventorsSatoshi Sano, Yasuhide Iwamoto, Fumihiko Nakazawa, Nobuyasu Yamaguchi
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeFujitsu Limited
InventorsSatoshi Sano, Yasuhide Iwamoto, Fumihiko Nakazawa, Nobuyasu Yamaguchi
Estimating the term…
Laser light emitted by a light emitting element is made parallel light by a collimation lens, passes through an aperture of an aperture mirror, and is then angularly scanned in a plane substantially parallel to a display screen by rotation of a polygon mirror and projected onto a recurrence reflection sheet. Then, after the reflected light from the recurrence reflection sheet is reflected by the polygon mirror and aperture mirror, the light is focused by a condenser lens to enter a light receiving element. The aperture mirror has an asymmetrical shape in the scanning direction and/or the vertical direction about the optical axis, according to a scanning surface opening width of the polygon mirror.
An optical scanning-type touch panel comprising:
The optical scanning-type touch panel as set forth in claim
The optical scanning-type touch panel as set forth in claim
An optical scanning-type touch panel comprising:
An optical scanning-type touch panel comprising:
Dependencies are inferred from the claim text.