An optical code reading device

Claim 2

An optical code reading device which comprises a light source (3) for emitting reading light for illuminating an object (6) to be read, at least one optical fiber (4) for transferring the reading light from the light source (3) having its one end positioned to receive the reading light from the light source (3), a lens system (5) disposed to receive the reading light projected from the other end of the optical fiber (4) and to project the reading light toward the object (6), light detecting means (7) for receiving the light reflected from the object (6) and generating electric signal representing intensity of the reflected light, and processing means (9) for processing the electric signal to produce electric signal representing the object (6).

Claim 3

An optical code reading device for use in a code reading device which comprises a light source (3) for emitting reading light for illuminating an object (6) to be read, at least one optical fiber (4) for transferring the reading light from the light source (3) having its one end positioned to receive the reading light from the light source (3), a lens system (5) disposed to receive the reading light project from the other end of the optical fiber (4) and to project the reading light toward the object (6), light detecting means (7) for receiving the light reflected from the object (6) and generating electric signal representing intensity of the reflected light, processing means (9) for processing the electric signal transferred for producing electric signal representing the object (6), an additional light source (17) for projecting visible light for sighting said reading light and at least one additional optical fiber (116) for transferring the visible light from said additional light source (17) with its one end disposed to receive said visible light from said additional light source (17) and other end disposed adjacent to the other end of said optical fiber (4) of the reading light so that the visible light can be projected with the reading light toward the object (6) to be read, thereby visually indicating the detecting point on the object (6) by the visible light.

Claim 4

An optical code reading device for use in a code reading device which comprises a light source (3) for emitting reading light for illuminating an object (6) to be read, at least one optical fiber (4) for transferring the reading light from the light source (3) having its one end positioned to receive the reading light from the light source (3), a lens system (5) disposed to receive the reading light project from the other end of the optical fiber (4) and to project the reading light toward the object (6), light detecting means (7) for receiving the light reflected from the object (6) and generating electric signal representing intensity of the reflected light, processing means (9) for processing the electric signal transferred for producing electric signal representing the object (6), an additional light source (17) for projecting visible light for sighting said reading light and at least one additional optical fiber (116) for transferring the visible light from said additional light source (17) with its one end disposed to receive said visible light from said additional light source (17) and other end disposed adjacent to the other end of said optical fiber (4) of the reading light so that the visible light can be projected with the reading light toward the object (6) to be read, thereby visually indicating the detecting point on the object (6) by the visible light.

Claim 5

The optical code reading device according to claim 1 or 2, wherein said light detecting means (7) and lens system (5) are accomodated in a scanning head (1) and said light source (3) is accomodated in a floor type unit (2).

Claim 6

The optical code reading device according to claim 1 or 2, wherein said light source (3) is a semiconductor laser.

Claim 7

The optical code reading device according to claim 1 or 2, wherein said light source (3) is a He-Ne laser.

Claim 8

The optical code reading device according to claim 3, wherein said light detecting means (7) is a photo diode.

Claim 9

The optical code reading device according to claim 1, wherein said other end of the optical fiber (4) and lens system (5) are mounted on a rotatable mechanism (14).

Claim 10

The optical code reading device according to claim 2, wherein a plurality of additional optical fiber (116) are disposed around the peripheral portion of the optical fiber (4) of the reading light so that the reading light and visible light can be projected on the object in a coaxial manner.

Claim 11

The optical code reading device according to claim 2, wherein said light source of the visible light is a light emitting diode (17).