CN2580462Y - Lens module capable of regulating amplification ratio - Google Patents
Lens module capable of regulating amplification ratio Download PDFInfo
- Publication number
- CN2580462Y CN2580462Y CN 02282935 CN02282935U CN2580462Y CN 2580462 Y CN2580462 Y CN 2580462Y CN 02282935 CN02282935 CN 02282935 CN 02282935 U CN02282935 U CN 02282935U CN 2580462 Y CN2580462 Y CN 2580462Y
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- Prior art keywords
- lens
- photo
- sensitive cell
- scanner
- lens assembly
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Abstract
The utility model relates to a lens module capable of regulating amplification ratio, which is arranged in a scanner. The utility model is used for receiving a scanning ray produced after the scanner scans a scanned document in a feedback mode, and the scanning ray is focused for imaging at least on one photosensitive element which is arranged in the scanner and can be replaced. The lens module comprises a lens which is oppositely provided with a ray feedback receiving end and an image feedback output end and at least a correction lens of which the size corresponds to that of the photosensitive element, and the correction lens is arranged in the front of the feedback receiving end or between the image feedback output end and the photosensitive element, making the amplification ratio of the lens module is larger or smaller than the amplification ratio of the lens. The scanning ray via the correction lens and the lens is focused for imaging on the photosensitive element, and the image size formed by focusing of the lens module accords with the size of the photosensitive element so that the image can be taken by the photosensitive element.
Description
(1) technical field
The relevant a kind of lens assembly of the present invention, and particularly relevant a kind of lens assembly of adjusting magnification.
(2) background technology
In the epoch now that development in science and technology is maked rapid progress, scanner (scanner) has become part indispensable in modern's daily life.For example, the user can utilize scanner scans file or pattern, with the scan image of acquisition file or pattern, and stores backup, even utilizes computer software to be modified processing again, and is quite convenient.
Generally speaking, scanner comprises a light source, a camera lens and a photo-sensitive cell at least.When scanner scans file to be scanned, light source will provide light shining file to be scanned, and produce one scanning light beam.Then, camera lens will be presented and receive this scanning ray, and focal imaging is on photo-sensitive cell.Then, photo-sensitive cell will capture the scan image of file to be scanned, and the size of this scan image must meet the size of photo-sensitive cell.
Please refer to Fig. 1, it is the synoptic diagram of the light path between file to be scanned, camera lens and the photo-sensitive cell.In Fig. 1, camera lens 102 has relative light feedback receiving end 102a and image feeds out end 102b, and file to be scanned 106 is positioned at the outside of light feedback receiving end 102a, and photo-sensitive cell 104 is positioned at the outside that image feeds out end 102b.Wherein, will produce one scanning light beam 108 behind light source (not being shown among Fig. 1) the irradiation file 106 to be scanned, camera lens 102 will be presented receiving end 102a feedback by light and receive on scanning ray 108 and the photo-sensitive cell 104 of focal imaging outside image feeds out end 102b.Certainly, the scan image size that captured of photo-sensitive cell 104 must meet the size of photo-sensitive cell 104.The size of supposing file 106 to be scanned is L, and the scan image size that captured of photo-sensitive cell 104 and the size of photo-sensitive cell be A, and then the magnification of camera lens 102 (magnification) is A/L.
It should be noted that the employed photo-sensitive cell of current scanline device big or small neither with, cause must the arrange in pairs or groups camera lens of relative different magnifications of the photo-sensitive cells of different sizes, can correctly capture scan image for scanner.So must the arrange in pairs or groups practice of a camera lens of this photo-sensitive cell will cause the special exploitation of the dealer's needs one relative camera lens employed photo-sensitive cell of arranging in pairs or groups, quite waste is exploited natural resources and production cost.
(3) utility model content
In view of this, purpose of the present invention is providing a kind of lens assembly of adjusting magnification (magnification) exactly, the user can select the relative correction lens of collocation according to the size (total length of valid pixel (pixels)) of photo-sensitive cell, make the image size of lens assembly of the present invention institute focal imaging meet the size of photo-sensitive cell, to be captured by photo-sensitive cell.So the present invention can be so that single camera lens be applicable to the photo-sensitive cells of different sizes, and saves the trouble of developing new camera lens again, and saves and exploit natural resources and production cost.
According to purpose of the present invention, a kind of lens assembly is proposed, in order to present receipts one light and focal imaging at least one photo-sensitive cell, lens assembly comprises a camera lens and at least one correction lens.Wherein, revising lens is to correspond to the size of photo-sensitive cell and be set up outside an end of camera lens or between the other end and photo-sensitive cell of camera lens.This light will image on the photo-sensitive cell through revising lens and camera lens and being focused, and the image size of formation that lens assembly focuses on meets the size of photo-sensitive cell, to be captured by photo-sensitive cell.
According to purpose of the present invention, another kind of scanner with the lens assembly that can adjust magnification is proposed, in order to scan a file to be scanned and to produce one scanning light beam, scanner comprises an at least one photo-sensitive cell and a lens assembly.Photo-sensitive cell can be replaced in scanner, meets the image of the size of photo-sensitive cell in order to acquisition.Lens assembly is received scanning ray and focal imaging on photo-sensitive cell in order to feedback, and the image size of formation that lens assembly focuses on meets the size of photo-sensitive cell, to be captured by photo-sensitive cell.Lens assembly comprises a camera lens and at least one correction lens, and camera lens has relative a light feedback receiving end and an image and feeds out end.Revising lens and be the place ahead or the image that correspond to the size of photo-sensitive cell and be set up in light feedback receiving end feeds out between end and the photo-sensitive cell.Make the magnification of lens assembly be greater than or less than the magnification of camera lens, scanning ray will image on the photo-sensitive cell through revising lens and camera lens and being focused.
For above-mentioned purpose of the present invention, characteristics and advantage can be become apparent, be elaborated below by a preferred embodiment and conjunction with figs..
(4) description of drawings
Fig. 1 is the synoptic diagram of the light path between file to be scanned, camera lens and the photo-sensitive cell.
Fig. 2 is the synoptic diagram according to the light path between the lens assembly of embodiments of the invention one, file to be scanned and the photo-sensitive cell.
Fig. 3 is the synoptic diagram according to the light path between the lens assembly of embodiments of the invention two, file to be scanned and the photo-sensitive cell.
Fig. 4 is the exploded view of camera lens, correction lens and the fastening device of Fig. 2.
Fig. 5 is the constitutional diagram of camera lens, correction lens and the fastening device of Fig. 2.
(5) embodiment
The special design one of the present invention can be adjusted the lens assembly of magnification (magnification), is arranged in the one scan device (scanner).Lens assembly is received the one scanning light beam that is produced behind scanner scans one file to be scanned in order to feedback, and at least one photo-sensitive cell that can be replaced of in scanner, being disposed of focal imaging.Lens assembly comprises camera lens and at least one correction lens, camera lens has relative light feedback receiving end and an image feeds out end, revises lens and be the size (total length of valid pixel (pixels)) that corresponds to photo-sensitive cell and the place ahead or the image that are set up in light feedback receiving end feed out between end and the photo-sensitive cell.Make the magnification of lens assembly be greater than or less than the magnification of camera lens, scanning ray will image on the photo-sensitive cell through revising lens and camera lens and being focused.And the image size of formation that lens assembly focuses on meets the size of photo-sensitive cell, to be captured by photo-sensitive cell.
So, the photo-sensitive cells that different sizes are set as the user are in scanner the time, and the user only need be provided with lens assembly of the present invention and replacing correction lens, to cooperate single lens, do not need to reset another relative camera lens or develop new camera lens, exploit natural resources and production cost with saving.
To be respectively described below with embodiment one and embodiment two as for the practical application of adjusting the lens assembly of magnification of the present invention.
Embodiment one
Please refer to Fig. 2, it is the synoptic diagram according to the light path between the lens assembly of embodiments of the invention one, file to be scanned and the photo-sensitive cell.Please refer to Fig. 1, in Fig. 2, when the photo-sensitive cell 102 of Fig. 1 be replaced with Fig. 2 have the photo-sensitive cell 204 of less size the time, the user can be provided with lens assembly 210 of the present invention, receives scanning ray 108 and focal imaging on photo-sensitive cell 204 in order to feedback.Wherein, the size of the photo-sensitive cell 104 of Fig. 1 is A, and the size of photo-sensitive cell 204 is B, and the value of B is less than the value of A.
Therefore, the user can be directly be provided with one in the place ahead of the light feedback receiving end 102a of camera lens 102 and revises lens 212, but as the convergence lens of a convergent light rays, in order to the light path (as shown in Figure 1) that changes original scanning ray 108.To form a lens correction light 208 after making scanning ray 108 through the light converging action of revising lens 212.Then, camera lens 102 will be presented and receive lens correction light 208, and on the photo-sensitive cell 204 of focal imaging after the image of camera lens 102 feeds out end 102b.Then, photo-sensitive cell 204 will capture the scan image of file 106 to be scanned, and this scan image size just meets the size of photo-sensitive cell 204.
Suppose that the scan image size that photo-sensitive cell 204 captures is B, then the magnification of lens assembly 210 is B/L.Because the value of B is less than the value of A, thus the value of B/L less than the value of A/L, promptly the magnification of lens assembly 210 is less than the magnification of camera lens 102.
So, the photo-sensitive cell of changing less size as the user is in scanner the time, the user can be directly before the light feedback receiving end of original camera lens or the image of original camera lens feed out between end and the photo-sensitive cell correction lens (promptly restraining lens) with convergent light rays effect be set, can reach the purpose that scan image size that photo-sensitive cell captures meets the size of photo-sensitive cell.
Embodiment two
Please refer to Fig. 3, it is the synoptic diagram according to the light path between the lens assembly of embodiments of the invention two, file to be scanned and the photo-sensitive cell.Please refer to Fig. 1, in Fig. 3, when the photo-sensitive cell 102 of Fig. 1 be replaced with Fig. 3 have the photo-sensitive cell 304 of size the time, the user can be provided with lens assembly 310 of the present invention, receives scanning ray 108 and focal imaging on photo-sensitive cell 304 in order to feedback.Wherein, the size of the photo-sensitive cell 104 of Fig. 1 is A, and the size of photo-sensitive cell 304 is C, and the value of C is greater than the value of A.
Therefore, the user can be directly be provided with one and revise lens 312 before the light feedback receiving end 102a of camera lens 102, but as the divergent lens of a divergent rays, in order to the light path (as shown in Figure 1) that changes original scanning ray 108.To form a lens correction light 308 after making scanning ray 108 through the divergence of beam effect of revising lens 312.Then, camera lens 102 will be presented and receive lens correction light 308, and on the photo-sensitive cell 304 of focal imaging after the image of camera lens 102 feeds out end 102b.Then, photo-sensitive cell 304 will capture the scan image of file 106 to be scanned, and this scan image size just meets the size of photo-sensitive cell 304.
Suppose that the scan image size that photo-sensitive cell 304 captures is C, then the magnification of lens assembly 310 is C/L.Because the value of C is greater than the value of A, thus the value of C/L greater than the value of A/L, promptly the magnification of lens assembly 310 is greater than the magnification of camera lens 102.
So, when the user changes than big or small photo-sensitive cell in scanner, the user can be directly before the light feedback receiving end of original camera lens or the image of original camera lens feed out between end and the photo-sensitive cell correction lens (being divergent lens) with divergent rays effect be set, can reach the purpose that scan image size that photo-sensitive cell captures meets the size of photo-sensitive cell.
The practice that how to be set in the scanner as for the correction lens has a lot, and for example, revising lens can be by fastening device configuration between camera lens the place ahead or camera lens and photo-sensitive cell.At this, the present invention general is that example is done explanation with the lens assembly 210 of embodiment one again.
Please refer to Fig. 4 and Fig. 5, it is respectively the exploded view and the constitutional diagram of camera lens, correction lens and the fastening device of Fig. 2.In Fig. 4, fastening device 500 is positioned at the light of camera lens 102 and presents the place ahead of receiving end 102a and comprise pedestal 502 and wedge shape carrier 504.Pedestal 502 has a breach 508, and in order to holding wedge shape carrier 504, and the two-phase counterpart wall of breach 508 has slide rail 512a and 512b.Wherein, wedge shape carrier 504 has a snapping hole 506, uses for revising lens 212 (or revising lens 312) and inserts.The both sides of wedge shape carrier 504 have slide- bar 510a and 510b, in order to respectively with slide rail 512a and 512b snapping, but make wedge shape carrier 504 be disposed on the breach 508 of pedestal 502 in the mode of snapping.
When the user will dispose the wedge shape carrier 502 of revising lens 212 when the direction of the arrow 550 of Fig. 4 is disposed on the pedestal 502, the slide-bar 510a of wedge shape carrier 504 and 510b will with the slide rail 512a and the 512b snapping of pedestal 502, make wedge shape carrier 502 be buckled on the pedestal 502, as shown in Figure 5.Certainly, fastening device 500 is also configurable between camera lens and photo-sensitive cell, and such snapping design will help the user and change the correction lens, and save the replacing time more.
Yet person skilled in the art person can understand that all technology of the present invention is not limited thereto.For example, the above-mentioned fastening device of configurable correction lens in scanner can be that any available replacing for the user revised the fastening device of lens in scanner.In addition, photo-sensitive cell can be a charge coupled cell (charge coupled device, CCD) and the element of other fechtable images.
In the lens assembly of the magnification adjusted that the above embodiment of the present invention disclosed, the user can select the relative correction lens of collocation according to the different sizes of photo-sensitive cell, make the image size of lens assembly of the present invention institute focal imaging meet the size (total length of valid pixel (pixels)) of photo-sensitive cell, to be captured by photo-sensitive cell.So the present invention can be so that single camera lens be applicable to the photo-sensitive cells with different sizes, and saves the trouble of developing new camera lens again, and reaches to save and exploit natural resources and the purpose of production cost.
In sum; though the present invention discloses as above with a preferred embodiment; yet it is not in order to limit the present invention; any person skilled in the art person without departing from the spirit and scope of the present invention; when can doing various changes and replacement, so protection scope of the present invention is when with being as the criterion that claim was limited.
Claims (14)
1. the lens assembly that can adjust magnification, be arranged in the one scan device, this lens assembly is received the one scanning light beam that is produced behind this scanner scans one file to be scanned in order to feedback, and at least one photo-sensitive cell that can be replaced of in this scanner, being disposed of focal imaging, it is characterized in that this lens assembly comprises:
One camera lens has relative a light feedback receiving end and an image and feeds out end; And
At least one correction lens, the place ahead or this image that correspond to the size of this photo-sensitive cell and be set up in this light feedback receiving end feed out between end and this photo-sensitive cell, make the magnification of this lens assembly be greater than or less than the magnification of this camera lens, this scanning ray will and be focused through these correction lens and this camera lens and image on this photo-sensitive cell, and the image size of formation that this lens assembly focuses on meets the size of this photo-sensitive cell, to be captured by this photo-sensitive cell.
2. lens assembly as claimed in claim 1 is characterized in that, but the divergent lens that these correction lens are divergent rays, with so that the magnification of this lens assembly greater than the magnification of this camera lens.
3. lens assembly as claimed in claim 1 is characterized in that, but the convergence lens that these correction lens are convergent light rays, with so that the magnification of this lens assembly less than the magnification of this camera lens.
4. lens assembly as claimed in claim 1 is characterized in that, this scanner also comprises:
One light source, required light when this scanner scans to be provided with this file to be scanned of irradiation, and produces this scanning ray.
5. lens assembly as claimed in claim 1 is characterized in that, this photo-sensitive cell is a charge coupled cell.
6. lens assembly as claimed in claim 1 is characterized in that, these correction lens feed out between end and this photo-sensitive cell by the place ahead or this image that a fastening device is arranged at this light feedback receiving end.
7. lens assembly as claimed in claim 6 is characterized in that, this fastening device comprises:
One pedestal has a breach, has one first slide rail and one second slide rail on the two-phase counterpart wall of this breach; And
One wedge shape carrier has a snapping hole, and in order to dispose this correction lens, the both sides of this wedge shape carrier have one first slide-bar and second slide-bar, in order to respectively with this first slide rail and this second slide rail snapping, make this wedge shape carrier be disposed in this breach of this pedestal.
8. scanner with the lens assembly that can adjust magnification in order to scan a file to be scanned and to produce one scanning light beam, is characterized in that this scanner comprises:
At least one photo-sensitive cell can be replaced in this scanner, meets the image of the size of this photo-sensitive cell in order to acquisition; And
One lens assembly is received this scanning ray in order to feedback, and focal imaging is on this photo-sensitive cell, and the image size of formation that this lens assembly focuses on meets the size of this photo-sensitive cell, and to be captured by this photo-sensitive cell, this lens assembly comprises:
One camera lens has relative a light feedback receiving end and an image and feeds out end; And
At least one correction lens, be to correspond to the size of this photo-sensitive cell and the place ahead or this image that are set up in this light feedback receiving end feed out between end and this photo-sensitive cell, make the magnification of this lens assembly be greater than or less than the magnification of this camera lens, this scanning ray will and be focused through these correction lens and this camera lens and image on this photo-sensitive cell.
9. scanner as claimed in claim 8 is characterized in that, also comprises:
One light source, required light when this scanner scans to be provided with this file to be scanned of irradiation, and produces this scanning ray.
10. scanner as claimed in claim 8 is characterized in that, but the divergent lens that these correction lens are divergent rays, with so that the magnification of this lens assembly greater than the magnification of this camera lens.
11. scanner as claimed in claim 8 is characterized in that, but the convergence lens that these correction lens are convergent light rays, with so that the magnification of this lens assembly less than the magnification of this camera lens.
12. scanner as claimed in claim 8 is characterized in that, this photo-sensitive cell is a charge coupled cell.
13. scanner as claimed in claim 8 is characterized in that, these correction lens feed out between end and this photo-sensitive cell by the place ahead or this image that a fastening device is arranged at this light feedback receiving end.
14. scanner as claimed in claim 13 is characterized in that, this fastening device comprises:
One pedestal has a breach, has one first slide rail and one second slide rail on the two-phase counterpart wall of this breach; And
One wedge shape carrier has a snapping hole, and in order to dispose this correction lens, the both sides of this wedge shape carrier have one first slide-bar and second slide-bar, in order to respectively with this first slide rail and this second slide rail snapping, make this wedge shape carrier be disposed in this breach of this pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02282935 CN2580462Y (en) | 2002-10-24 | 2002-10-24 | Lens module capable of regulating amplification ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02282935 CN2580462Y (en) | 2002-10-24 | 2002-10-24 | Lens module capable of regulating amplification ratio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2580462Y true CN2580462Y (en) | 2003-10-15 |
Family
ID=33744921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02282935 Expired - Lifetime CN2580462Y (en) | 2002-10-24 | 2002-10-24 | Lens module capable of regulating amplification ratio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2580462Y (en) |
-
2002
- 2002-10-24 CN CN 02282935 patent/CN2580462Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YUDONG TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: LIJIE COMPUTER CO., LTD. Effective date: 20051028 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20051028 Address after: 14 floor, No. 168 North Dunhua Road, Taipei, Taiwan Patentee after: Transpacific IP Pte Ltd. Address before: No. two, No. 1-1, R & D Park, Hsinchu Science Park, Taiwan Patentee before: Lijie Computer Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: YUXI SCIENCE CO., LTD. Free format text: FORMER OWNER: YUDONG TECHNOLOGY CO., LTD. Effective date: 20090828 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090828 Address after: Delaware, zip code: Patentee after: Transpacific IP Pte Ltd. Address before: Building 14, 168 North Dunhua Road, Taiwan, Taipei Province, China: 000000 Patentee before: Transpacific IP Pte Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121024 Granted publication date: 20031015 |