JPS6331152Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an optical reading device for information cards having an area for optical reproduction.

BACKGROUND ART For information recording cards such as ID cards, cash cards, and information cards, cards in which a metal thin film layer is provided on a card base material are already known. Such cards usually use a laser beam to volatilize or deform a part of the metal film layer, or cause a change in reflectance to record information based on differences in light reflectance, transmittance, etc. It is used for optical reproduction. The optical recording type cards mentioned above have a recording density that is more than an order of magnitude higher than the conventionally used magnetic recording type cards, and can perform recording and reproduction in an extremely narrow width. It does not require the same width as the recording layer, or if the recording layer has the same width, it is possible to record several rows.

An object of the present invention is to provide a device for reading recorded information from such a card.

Embodiments of the present invention will be described below based on the drawings.

In the figure, numeral 10 is an information card, on which information is recorded in several rows along the longitudinal direction.

The card is inserted and removed from the left side, and a plurality of pairs of rollers 12 are installed in this direction. When the card is moved in and out, the information column will move in a direction perpendicular to the roller.

14 is a guide bar for the card, and roller 12
It extends along the direction of extension.

16 is a rotor of a linear motor installed in a direction perpendicular to the direction in which the guide bar extends;
8 is a stator that moves along the rotor.

A linear motor is provided to move the optical pickup 20 in a direction perpendicular to the information array, and the optical pickup is fixedly installed on the stator 18. Reference numeral 22 denotes a holder for holding the optical pickup on the rotor.

The optical pickup 20 has a built-in semiconductor laser, a lens system, a photoelectric converter, etc., and is configured to automatically focus and irradiate a laser beam onto one of the information columns.

Additionally, 24 is a light emitter/receiver for detecting the presence or absence of a card and its edge.

Next, the operation of the above reading device will be described.

First, when an information card 10 is inserted into the guide bar 14, it is caught by the driven rollers 12 and drawn into the device. When the leading edge of the card enters between the light projector and receiver 24, the card is stopped.

Next, the optical pickup 20 is moved toward the information column of the card 14 by operation of a linear motor, and stops at a position where the beginning of the first column may be present. Automatic focusing is then performed, and if information exists, roller 1
2 is driven, the reflected light of the laser beam is converted into an electrical signal by a photoelectric conversion device, and the signal is processed by a computer (not shown).

When the reading of one row of information is completed, the roller 12 is stopped, and the optical pickup 20 is moved by one pitch of the information row by the operation of the linear motor, and the end of the adjacent information row is detected, and then the roller 12 is moved.
is reversed, and during this time the information in the relevant column is read in the same manner as above.

After all the information on the card is read by repeating the same procedure, the card 10 is ejected from the machine.

The above operations are automatically performed using a computer.

Since the device according to the present invention is configured as described above, even if the card has a plurality of information recording lines, the record can be read easily and quickly.

[Brief explanation of the drawing]

The figures schematically show a card reading device according to the present invention, and FIG. 1 is a plan view thereof, and FIG. 2 is a sectional view taken along the line -- in FIG. 1. 10... Card, 12... Roller, 14... Guide bar, 16, 18... Linear motor, 20...
...Light pick up.

Claims (1)

[Scope of claim for utility model registration] A card reading device comprising the following items. a. A plurality of pairs of rollers that hold a card having a plurality of information recording lines and move it back and forth in the direction of the information recording lines. b. A guide bar for the card extending along the arrangement direction of the rollers. c. The guide bar. A linear motor (d) consisting of a rotor of a linear motor installed in a direction perpendicular to the direction of extension thereof and a stator that moves along the rotor (d) An optical pick-up (e) installed on the stator of the linear motor; A light emitter/receiver f detects the edge of the card as it moves.When the light emitter/receiver detects the edge of the card, it stops the rotation of the roller, and then activates the linear motor to pick up the optical pickup until the first information recording line is detected. After the card is moved to the desired position, the roller is driven to move the card and the information is read by the optical pick-up. When the reading of one line of information is completed, the rotation of the roller is stopped and the information recording line is moved by operating the linear motor. The optical pick-up is moved by one pitch to detect the adjacent information recording line, then the roller is reversed and the information is read by the optical pick-up, and when all the information recording lines have been read by repeating this process, the roller is driven. A computer that controls the ejection of cards.