Denso Wave Corporation

Denso Corporation

Kunihiko Itou

Koji Konosu

Hisashi Shigekusa

Kenichi Yoshida

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.

Optical information reading apparatus

In an imaging device for imaging a target, a photodetector with a two-dimensional light sensitive pixel area is provided. The two-dimensional light sensitive pixel area is divided into a plurality of split pixel areas. An imaging optics defines a plurality of segments of an FOV (field of view). The plurality of segments of the FOV respectively correspond to the plurality of split pixel areas of the photodetector. The imaging optics aligns, in a predetermined direction, the plurality of segments of the FOV to form a predetermined-direction oriented FOV so that the target is at least partially contained in the predetermined-direction oriented FOV.

Imaging device with a two-dimensional photodetector

In an apparatus, a collimated-beam irradiating unit irradiates on the target a substantially collimated beam with a size thereon. A first pickup unit causes the photodetector to pick up through the imaging optics a first image of the target while the substantially collimated beam is being irradiated on the target by the collimated-beam irradiating unit. A measuring unit measures size information indicative of the size of the collimated beam being irradiated on the target based on the picked-up second image. A distance determining unit determines a distance between the apparatus and the target based on the measured size information of the collimated beam.

Method and apparatus for optically reading information attached to a target

An optical information readout apparatus is disclosed having an image forming optical sectionoperative to shift first and second lensesalong an optical axis 'O' at areas in front of a photodetector. A cylindrical bodyincorporates a lens holder means, including permanent magnetsto, by which the first lensis halted and held in any of positions a, aand the second lensis halted and held in any of positions b, b. Coilsand a control circuitdrivingly shift the lenses. The control circuit is operative to independently move the lenses to change a focusing range of the image forming optical section in four different stages in the occurrence of a failure in reading out a two-dimensional code.

Optical information readout apparatus

In an optical information reading apparatus, a marker beam irradiating unit has a light beam source for emitting a light beam, a diffusing lens for diffusing the light beam emitted from the light beam source, and a collective lens for collecting the light beam diffused by the diffusing means. The marker beam irradiating unit has a pattern forming unit for forming a marker beam based on the light beam collected by the collecting means to irradiate the marker beam. The marker beam has a predetermined beam pattern indicating the reading position of the pickup unit.

Optical information code reading apparatus using marker beam

A radius of curvature of a projection lens for projecting illumination light on bar codes varies in the arranging direction of the line sensor to collimate the illumination light at each point along the extending direction of the projection lends such that a focal distance at each point agrees with a distance between the point and the position of the LED.

Optical data form reading apparatus

Two-dimensional code image is read with a two-dimensional CCD, and displayed on an LCD. Keys or a touch panel can input a message regarding the read image by hand. The read image and the message displayed on the LCD are stored in the EEPROM with relationship therebetween.

Data code image reading apparatus

An optical reader having a reduced thickness due to an optical sensor configuration that is reduced in height compared to conventional optical sensor configurations. A sensor aperture in which the optical sensor is mounted and a lens-barrel aperture through which a lens-barrel that houses the reader optical imaging system is inserted are defined in a mounting substrate. The optical sensor is mounted in the sensor aperture so that a part thereof protrudes below the mounting substrate, and the lens-barrel is mounted in the lens-barrel aperture so that a part thereof protrudes below the mounting substrate. Because the optical sensor is disposed in the above manner, the space required above the mounting substrate to house the sensor is equal to the height of the optical sensor.

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Chiryu, Japan

Kunihiko Itou