Optical device of scanner
View Patent ↗The invention relates to a scanner's optical device, for receiving the light coming from the image of an object being scanned, comprising: several reflective mirrors, a light-focusing module, and a charge coupled device. The reflective mirrors provide reflection and directional change for the light and, by appropriately arranging several reflective mirrors, the light of the object being scanned directionally changed to a predetermined route. With at least one curving mirror, the light-focusing module focuses the light of the predetermined route and then directionally changes it, and a raster is then provided in the light route of the curving mirror for filtering out unnecessary light. The charge coupled device receives the light coming from the light-focusing module and converts it into electronic signals. The said light-focusing module replaces the prior art lens set for executing a scanning job.
1. A scanner's optical device capable of receiving light coming from an object being scanned, comprising:
several reflective mirrors, capable of providing reflection and directional change for the light and, wherein by arranging several reflective mirrors appropriately, the light of the object being scanned is capable of being directionally changed to a predetermined route;
a light focusing module, comprising:
at least one curving mirror, capable of focusing the light of the predetermined route and then directionally changing it;
a raster, which is provided in the light route of the curving mirror for filtering out unnecessary light; and
a charge coupled device, capable of receiving the light coming from the light-focusing module and converting it into electronic signals.
2. The scanner's optical device according to claim 1 , wherein the raster has at least one transparent hole.
3. The scanner's optical device according to claim 2 , wherein the transparent hole is formed as a long narrow stripe and extended horizontally.
4. The scanner's optical device according to claim 2 , wherein a number of the transparent hole is plural and the transparent hole is formed as a long narrow stripe and extended horizontally.
5. The scanner's optical device according to claim 1 , wherein the curving mirror has two parallel long sides, two short sides that are intercrossed with the two long sides respectively, and a first plane and a second plane that are corresponded to each other and defined by the long sides and the short sides.
6. The scanner's optical device according to claim 5 , wherein the two short sides are bent to form a curving mirror with the first plant bent inwardly and the second plane projected outwardly.
7. The scanner's optical device according to claim 5 , wherein the two long sides are bent to form a curving mirror with the first plant bent inwardly and the second plane projected outwardly.
8. The scanner's optical device according to claim 5 , wherein the two long sides and the two short sides are bent to a same side direction simultaneously to form a curving mirror with the first plant bent inwardly and the second plane projected outwardly.
9. The scanner's optical device according to claim 1 , wherein the optical device further has an image adjusting module, applied to calibrate and adjust the light image focused by the light-focusing module.
10. The scanner's optical device according to claim 1 , wherein one or more of the at least one curving mirror is at least partially structured as a thin plate, of which one side surface is arranged and distributed with a coating layer of light-reflective material.
11. The scanner's optical device according to claim 10 , wherein the coating layer is arranged and distributed on the inner curving surface of the curving mirror.
12. The scanner's optical device according to claim 1 , wherein the optical device further has a casing applied for accommodating and positioning each reflective mirror, the light-focusing module, and the charge coupled device; furthermore, several connecting surfaces that are corresponded with each other with predetermined angles and positions are formed on the predetermined positions of the casing for providing a connecting and positioning function to the at least one curving mirror.
13. The scanner's optical device according to claim 12 , wherein the connecting surface is designed as a curving surface formation that matched with the curvature of the curving appearance of the curving mirror, such that the curving mirror is capable of being accommodated and positioned directly in the connecting surface.
14. The scanner's optical device according to claim 12 , wherein the curving mirrors are comprised of flexible materials and are pasted directly in the connecting surface.
15. The scanner's optical device according to claim 12 , wherein a number of the curving mirror is plural.
16. The scanner's optical device according to claim 1 , wherein the plural curving mirrors all have the same curvature.
17. The scanner's optical device according to claim 1 , wherein the plural curving mirrors have at least two different kinds of curvature.
18. The scanner's optical device according to claim 1 , wherein the reflective mirrors are capable of being adjustable and, by adjusting the relative positions of the several adjustable reflective mirrors, it is capable of changing an optical length of a scanning procedure and, by appropriately arranging the several adjustable reflective mirrors, the light of the image of the object being scanned is capable of being directionally changed to a predetermined route.