US6806981B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image reading apparatus
Assignee: Fujifilm Holdings Corp
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Filing: 2000-10-12
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Granted: 2004-10-19
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Expires: 2020-10-12
Abstract
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.
Inventors
- 👤 Masaaki Konno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:31
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/024; H04N1/028; H04N1/02815; H04N1/0288; H04N1/46; H04N1/48
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
133 words
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.
Claim 2
Dependent Claim
133 words
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.
Claim 3
Dependent Claim
34 words
An image reading apparatus according to claim 1 , wherein a light guiding member for making light emitted from said light source into diffuse light is disposed between said light source and the original.
Claim 4
Dependent Claim
32 words
An image reading apparatus according to claim 2 , wherein said light guiding member comprises a block having a substantially trapezoidal shape as seen in side view and a light diffusing plate.
Claim 5
Dependent Claim
42 words
An image reading apparatus according to claim 3 , wherein surfaces other than the surfaces, on which light is incident and from which light is emitted, of the block are covered by a member having a light reflectance of 70% or more.
Claim 6
Dependent Claim
22 words
An image reading apparatus according to claim 2 , wherein said original is a color negative film having an orange colored mask.
Claim 7
Dependent Claim
28 words
An image reading apparatus according to claim 1 , wherein the LED elements of respective colors are provided such that the ratio of numbers thereof r:g:b is 1:1.5-3:2-6.
Claim 8
Dependent Claim
28 words
An image reading apparatus according to claim 2 , wherein the LED elements of respective colors are provided such that the ratio of numbers thereof r:g:b is 1:1.5-3:2-6.
Claim 9
Dependent Claim
28 words
An image reading apparatus according to claim 5 , wherein the LED elements of respective colors are provided such that the ratio of numbers thereof r:g:b is 1:1.5-3:2-6.
Claim 10
Dependent Claim
45 words
An image reading apparatus according to claim 8 , wherein said photoelectric converting element is a monochromatic type CCD which is composed of a plurality of CCD cells having sensitivities in the visible light region and the infra-red light region disposed in a matrix form.
Claim 11
Dependent Claim
45 words
An image reading apparatus according to claim 1 , wherein said photoelectric converting element is a monochromatic type CCD which is composed of a plurality of CCD cells having sensitivities in the visible light region and the infra-red light region disposed in a matrix form.
Claim 12
Dependent Claim
149 words
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.
Claim 13
Dependent Claim
149 words
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.
Claim 14
Dependent Claim
34 words
An image reading apparatus according to claim 11 , wherein a light guiding member for making light emitted from said light source into diffuse light is disposed between said light source and the original.
Claim 15
Dependent Claim
32 words
An image reading apparatus according to claim 12 , wherein said light guiding member comprises a block having a substantially trapezoidal shape as seen in side view, and a light diffusing plate.
Claim 16
Dependent Claim
42 words
An image reading apparatus according to claim 13 , wherein surfaces other than the surfaces, on which light is incident and from which light is emitted, of the block are covered by a member having a light reflectance of 70% or more.
Claim 17
Dependent Claim
22 words
An image reading apparatus according to claim 12 , wherein said original is a color negative film having an orange colored mask.
Claim 18
Dependent Claim
28 words
An image reading apparatus according to claim 11 , wherein the LED elements of respective colors are provided such that the ratio of numbers thereof ir:r:g:b is 0.2-0.9:1:1.5-3:2-6.
Claim 19
Dependent Claim
28 words
An image reading apparatus according to claim 12 , wherein the LED elements of respective colors are provided such that the ratio of numbers thereof ir:r:g:b is 0.2-0.9:1:1.5-3:2-6.
Claim 20
Dependent Claim
28 words
An image reading apparatus according to claim 15 , wherein the LED elements of respective colors are provided such that the ratio of numbers thereof ir:r:g:b is 0.2-0.9:1:1.5-3:2-6.
Claim 21
Dependent Claim
45 words
An image reading apparatus according to claim 11 , wherein said photoelectric converting element is a monochromatic type CCD which is composed of a plurality of CCD cells having sensitivities in the visible light region and the infra-red light region disposed in a matrix form.
Claim 22
Dependent Claim
45 words
An image reading apparatus according to claim 18 , wherein said photoelectric converting element is a monochromatic type CCD which is composed of a plurality of CCD cells having sensitivities in the visible light region and the infra-red light region disposed in a matrix form.
Claim 23
Dependent Claim
29 words
An image reading apparatus according to claim 1 , wherein the same predetermined current is applied to each of the R-LED elements, the G-LED elements, and the B-LED elements.
Claim 24
Dependent Claim
33 words
An image reading apparatus according to claim 1 , wherein the numbers r, g, and b, are determined according to spectral transmittance of the respective red, green, and blue light to the original.
Claim 25
Dependent Claim
29 words
An image reading apparatus according to claim 11 , wherein the same predetermined current is applied to each of the R-LED elements, the G-LED elements, and the B-LED elements.
Claim 26
Dependent Claim
53 words
An image reading apparatus according to claim 11 , wherein the numbers ir, r, g, and b, are determined according to spectral transmittance of the respective infra-red, red, green, and blue lights through the original, and the number ir is determined to be smaller than any of the numbers r, g and b.
Claim 27
Dependent Claim
50 words
An image reading apparatus according to claim 1 further comprising a light guiding member comprising a light entrance face and a light emitting face, wherein the light entrance face is larger than the light emitting face and the light guiding member is disposed between said light source and the original.
Claim 28
Dependent Claim
53 words
An image reading apparatus according to claim 1 further comprising a light guiding member disposed between said light source and the original, wherein surfaces other than the surfaces, on which light is incident and from which light is emitted, of a the light guiding member have a light reflectance of 70% or more.
Claim 29
Dependent Claim
19 words
An image reading apparatus according to claim 1 , wherein said photoelectric converting element is a monochromatic type CCD.
Claim 30
Dependent Claim
37 words
An image reading apparatus according to claim 27 , wherein said monochromatic type CCD comprises a plurality of CCD cells having sensitivities in the visible light region and the infra-red light region disposed in a matrix form.
Claim 31
Dependent Claim
50 words
An image reading apparatus according to claim 11 further comprising a light guiding member comprising a light entrance face and a light emitting face, wherein the light entrance face is larger than the light emitting face and the light guiding member is disposed between said light source and the original.
Claim 32
Dependent Claim
53 words
An image reading apparatus according to claim 11 further comprising a light guiding member disposed between said light source and the original, wherein surfaces other than the surfaces, on which light is incident and from which light is emitted, of a the light guiding member have a light reflectance of 70% or more.
Claim 33
Dependent Claim
19 words
An image reading apparatus according to claim 11 , wherein said photoelectric converting element is a monochromatic type CCD.
Claim 34
Dependent Claim
37 words
An image reading apparatus according to claim 31 , wherein said monochromatic type CCD comprises a plurality of CCD cells having sensitivities in the visible light region and the infra-red light region disposed in a matrix form.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2007-10-19 | 2008-04-19 | 2008-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-10-19 | 2012-04-19 | 2012-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-10-19 | 2016-04-19 | 2016-10-19 | $7700.00 | Window Closed / Lapsed |