Optical device and method for scanner
First Claim
1. A optical device for scanner that can accept the light reflected from the object scanned, and said optical device comprises:
- at least a concave mirror with a reflecting surface to focus light and reflect said light to a pre-determined route, a image device that can accept the light reflected from a concave mirror and convert the light into digital signal, a stop that is on the light traveling route between said image device and at least a concave mirror to reject the extra light,
4 Assignments
0 Petitions
Accused Products
Abstract
A optical device and method for scanner that includes at least a concave mirror, a image device, a stop and a image adjusting module. The concave mirror is with a reflecting surface to focus light and reflect said light to a pre-determined route. The image device can receive the light reflected from at least a concave mirror and convert the light into digital signal. Said stop is on the light traveling route between the image device and at least a concave mirror to reject the extra light. The said image adjusting module is used to adjust the image formed by at least one of the said concave mirrors. The method of adjusting the scanned image will multiply the scanned image by a 2-dimensional enlarging value, said method also cover adjusting the MTF value of the image that near the two ends of the object being scanned.
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Citations
26 Claims
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1. A optical device for scanner that can accept the light reflected from the object scanned, and said optical device comprises:
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at least a concave mirror with a reflecting surface to focus light and reflect said light to a pre-determined route, a image device that can accept the light reflected from a concave mirror and convert the light into digital signal, a stop that is on the light traveling route between said image device and at least a concave mirror to reject the extra light, - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 26)
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19. The optical device for scanner that will receive the light reflected from a object, wherein said device comprises at least one concave mirror with a reflecting side to focus and reflect light to a pre-determined direction;
- one image device to receive the light reflected from a concave mirror and convert said light into digital signal, more over, said device does not have lens set and convex mirror but has one stop with at least one light pass-through hole on the light traveling path to reject the extra light.
- View Dependent Claims (20, 21, 22, 23)
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24. The image adjusting method of a optical device for scanner, wherein said image adjusting method comprises the following steps:
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scanning a object along with a certain direction to obtain a scanned image, multiplying the scanned image by the pre-determined 2-dimensional enlarging ratio, adjusting the value of MTF that near the two ends of the scanned image, obtaining a output image. - View Dependent Claims (25)
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Specification