Image reading apparatus
AssigneeFuji Photo Film Co., Ltd.
InventorMasaaki Konno
Life of this patent
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Abstract
The invention is an image reading apparatus in which a light source having a plurality of LED elements composed of red (R) light emitting elements (R-LEDs), green (G) light emitting elements (G-LEDs) and blue (B) light emitting elements (B-LEDs), and optionally infrared (IR) light emitting elements (IR-LEDs), which are arranged in a matrix form and which emit independently or simultaneously respective lights by a predetermined current being supplied thereto are provided. The numbers of the IR-LEDs, the R-LEDs, the G-LEDs and B-LEDs arranged in the matrix are ir, r, g and b, respectively, and ir<r<g<b. The apparatus also includes a photoelectric converting element for reading lights transmitted through or reflected by an original such as a color negative film irradiated with the lights emitted from the light source.
Claims32
An image reading apparatus comprising:
- a light source having a plurality of LED elements composed of red (R) light emitting elements (R-LEDs), green (G) light emitting elements (G-LEDs) and blue (B) light emitting elements (B-LEDs) which are arranged in a matrix form and which emit independently or simultaneously red (R) light, green (G) light and blue (B) light by a predetermined current being supplied thereto;
- and
- a photoelectric converting element for reading lights transmitted through or reflected by an original irradiated with the lights emitted from the light source,
- wherein the numbers of the R-LED elements, the G-LED elements and the B-LED elements arranged in the matrix are r, g and b, respectively, and r<g<b, and the R-LED elements, the G-LED elements and the B-LED elements are uniformly distributed in the matrix, respectively.
An image reading apparatus comprising:
- a light source having a plurality of LED elements composed of red (R) light emitting elements (R-LEDs), green (G) light emitting elements (G-LEDs), blue (B) light emitting elements
- (B-LEDs) and infra-red (IR) light emitting elements (IR-LEDs) which are arranged in a matrix form and which emit independently or simultaneously red (R) light, green (G) light, blue (B) light and infra-red (IR) light by a predetermined current being supplied thereto;
- and
- a photoelectric converting element for reading lights transmitted through or reflected by an original irradiated with the lights emitted from the light source,
- wherein the numbers of the R-LED elements, the G-LED elements, the B-LED elements and the IR-LED elements arranged in the matrix are r, g, b and ir, respectively, and ir<r<g<b, and the IR-LED elements, the R-LED elements, the G-LED elements and the B-LED elements are uniformly distributed in the matrix, respectively.
Dependencies are inferred from the claim text.