Optical information reading apparatus
AssigneeDenso Wave Incorporated
InventorKunihiko Itou
Life of this patent
Estimating the term…
Abstract
In an optical information reading apparatus, a pickup unit has a predetermined reading position, and is configured to optically pickup information of a target when the information is located at the reading position. A marker beam irradiating unit includes a light beam source configured to emit a light beam. The marker beam irradiating unit includes a beam pattern forming lens arranged to allow the emitted light beam to enter thereinto. The pattern forming lens is configured to irradiate a marker beam based on the emitted light beam. The marker beam has a predetermined beam pattern composed of at least one linear beamlet to indicate the reading position of the pickup unit.
Claims17
An optical information reading apparatus comprising:
- a pickup unit having a predetermined reading position and configured to optically pickup information of a target when the information is located at the reading position;
- and
- a marker beam irradiating unit comprising:
- a light beam source configured to emit a light beam;
- and
- a beam pattern forming lens arranged to allow the emitted light beam to enter thereinto, the pattern forming lens being configured to irradiate a marker beam based on the emitted light beam, the marker beam having a predetermined beam pattern composed of at least one linear beamlet to indicate the reading position of the pickup unit.
Dependencies are inferred from the claim text.