A mounting apparatus for an optical sensor, applied to an optical scan module. A screw pile with a filet slot head, a washer and a screw nut are used to mount the base plate of the charged-couple device to the main body. Therefore, it is easy to adjust the skew in the direction parallel to the base plate of the charged-couple device and the depth of focus.
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1. A mounting apparatus for an optical sensor, applied to an optical scanner module which comprises a main body and an optical sensor, and the optical sensor having a base plate with a plurality of through holes, the mounting apparatus comprising:
a plurality of screw piles, each of which includes a nut side and a bolting side, wherein an annular fitting board is inserted between each pair of the nut sides and the bolting sides ; and
a plurality of screw nuts, each of which is screwed with one of the screw piles at the nut side thereof, such that the base plate is restrained to the screw piles between the annular fitting boards and the screw nuts.
0. 18. A mounting apparatus for an optical sensor, applied to an optical scanner module which comprises a main body and an optical sensor, and the optical sensor having a base plate with a plurality of through holes, the mounting apparatus comprising:
a plurality of screw piles, each of which includes a nut side and a bolting side, wherein an annular fitting board is inserted between each pair of the nut sides and the bolting sides; and
a plurality of screw nuts, each of which is screwed with one of the screw piles at the nut side thereof, such that the base plate is restrained to the screw piles between the annular fitting boards and the screw nuts.
0. 11. A method, comprising:
disposing a bolting side of one or more screw connectors through one or more threaded holes in an optical scan module; and
disposing a nut side of the one or more screw connectors through one or more through holes in an optical sensor base plate, the optical sensor base plate coupled to an optical sensor; and
engaging one or more nuts to the respective nut side of the one or more screw connectors to mount the optical sensor base plate to the optical scan module, wherein the optical scan module includes an optical lens forming at least a portion of an optical path, such that the optical sensor is mounted substantially in the optical path of the optical lens.
6. An optical scanner module, used scan a document, comprising:
a main body;
a light source, disposed in the main body to radiate the document, so as to obtain an image light;
a reflecting mirror set, installed in the main body along an optical path of the image light;
an optical lens, located along the optical path after the reflecting mirror set;
an optical sensor, mounted in the main body and located along the optical path after the optical lens, the optical sensor having a base plate with a plurality of through holes;
a plurality of screw piles, each of which has a nut side, a bolting side, and an annular fitting board therebetween, wherein each nut side is threaded into one of the through holes; and
a plurality of screw nuts, screwed with the screw piles at the nut sides, so that the base plate is restrained between the annular fitting boards and the screw nuts.
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7. The optical scan module according to
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9. The optical scan module according to
10. The optical scan module according to
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0. 19. The mounting apparatus according to
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1. Field of the Invention
The invention relates in general to a method of fabricating a semiconductor device, and more particular, to a method of fabricating a memory device.
2. Description of Related Art
As image input, process and finishing have evoked public interest, the scanner is now the basic equipment for many computer users. The scanner is used to scan the text or graphic information of a document, a magazine, a book or a picture. The scanned information is then input to the computer for further process. Of the various kinds of scanners, the flatbed scanner is very common. The scan module of the flatbed scanner is installed under a transparent platform to scan the document disposed on the transparent platform by iterative movement. As the scan module itself does not have power, a driving mechanism such as a step motor, a gear and a belt is required. While scanning a document by the flatbed scanner, the document disposed on the transparent platform has to be covered with a cover lid, such that the document is appressed on the transparent platform for scan.
The conventional optical scan module (referring to
As shown in
To comply with the trends of being light, thin, short and small, the scanner is formed with a shrinking and delicate dimension. The optical cone of the image light projected from the optical lens 500 to the charged-couple device 600 becomes smaller and smaller. As a result, the depth of focus becomes shallower and shallower. An accurate adjustment of the relative positions for the optical lens 500 and the charged-couple device becomes crucial for the correct depth of focus.
After the skew in the direction parallel to the base plate is adjusted, the base plate of the conventional charged-couple device 600 is directly locked to the main body (at the rear side of the trapezoid seat of the mounting apparatus of the optical lens) with a screw, so that the distance to the optical lens 500 cannot be further adjusted. Thus, the adjustment of the depth of focus between the optical lens 500 and the charged-couple device 600 can only be made at the optical lens 500. To allow the charged-couple device 600 to adjust the position (that is, the distance to the optical lens 500) to match the correct depth of focus, the previously adjusted skew is inevitably changed. Therefore, three degrees of freedom have to be considered causing great difficulty in adjustment of the charged-couple device.
The present invention provides a mounting apparatus for an optical sensor. A screw pile with one end having a filet slot, a washer and a screw nut are used to mount the base plate of the charged-couple device to the main body, so that the skew in the direction parallel to the base plate and the depth of focus of the charged-couple device can be adjusted independently.
The mounting apparatus of the optical sensor is applied to an optical scanner module. The optical scanner module has a main body and an optical sensor. The optical sensor further comprises a base plate with a plurality of through holes. A plurality of screw piles and screw nuts are used as the mounting apparatus.
Each of the screw piles has a nut side and a bolting side. An annular fitting board is inserted between the nut side and the bolting side. The nut side of each screw pile is threaded through one through hold of the base plate, while the bolting side thereof is latched to the main body. One side of the screw pile at the nut side has a filet slot, such that a filet screw driver can be used to turn the screw pile and to adjust the position along the axis thereof.
A plurality of screw nuts are used to lock the nut sides of the screw piles, such that the base plate is restrained to each screw pile between the annular fitting board and the corresponding screw nut thereof.
The present invention further includes a plurality of washers inserted between each screw nut and the base plate to reinforce the mounting strength.
The main body further comprises a plurality of slot openings, each of which has a threaded hole allowing the bolting side of each screw pile to be locked therein. The annular fitting board is disposed in the slot opening, while the depth of the slot opening is larger than the thickness of the annular fitting board. The annular fitting board can thus be embedded in the slot opening, and the base plate can be appressed to the main body.
After adjusting the base plate, glue is dispensed at the connecting part between the bolting side of each screw pile and the main body to reinforce the fixture of the screw pile, so as to prevent the screw pile from becoming loose due to vibration.
These, as well as other features of the present invention, will become more apparent upon reference to the drawings wherein:
Referring to
As shown in
Referring to
The nut side 1810 of each screw pile 1800 is perforated into a through hole 1612 of a base plate of the charged-couple device 1600 and the screw nut 1900 is threaded in at the nut side 1810, so that the base plate 1610 of the charged-couple device 1600 is bound between the annular fitting board 1830 and the screw nut 1900. Therefore, the skew of the base plate 1610 of the charged-couple device 1600 can be further adjusted.
The bolting side 1820 is semi-permanently latched to the main body 1700 at the threaded bore 1712 of the slot opening. The above annular fitting board 1830 is embedded into the slot opening 1710 with a thickness smaller than the depth of the slot opening 1710, such that the base plate 1610 of the charged-coupled device 1600 can be flatly appressed on the main body 1700.
The end of the nut side 1810 has a filet slot head 1812, such that a filet screw driver (not shown) can be used to turn the filet slot head 1812, so as the adjust the screw pile 1800 along the axis. When the screw pile 1800 moves back and forth along the axis thereof, the base plate 1610 of the charged-couple device 1600 is still restrained between the annular fitting board 1830 and the screw nut 1900 without affecting the adjusted skew. Therefore, the distance between the charged-couple device 1600 and the optical lens 1500 can be adjusted to control the accurate depth of focus.
The screw pile 1800 and the screw nut 1900 of the mounting apparatus of the optical sensor provided by the invention allows the charged-couple device 1600 to adjust the skew and the accurate depth of focus independently with a simple mechanism.
Further, a washer 2000 can be further disposed between the screw nut 1900 and the base plate 1610 of the charged-couple device 1600 to provide the improved locking status of the base plate 1610 of the charged-couple device 1600.
After adjusting the skew of the base plate 1610 and the depth of focus of the charged-couple device 1600, glue 1840 is dispensed at the connecting part between the bolting side 1820 of each screw pile 1800 and the main body 1700 as shown in FIG. 7. The screw pile 1800 can thus be fixed to the main body 1700 without being loose due to vibration to affect the adjusted position of the base plate 1610 of the charged-couple device 1600 in three degrees of freedom.
Accordingly, mounting apparatus of the optical sensor provided by the present invention uses the simple mechanism of a screw pile with a filet-slot head at one side and the above annular fitting board to allow independent adjustment of the skew and the depth of focus for the charged-couple device.
The advantage of the present invention comprises using the simple mechanical design of a screw pile with one filet-slot head at one side and the above annular fitting board to allow independent adjustment of skew and depth of focus of the charged-couple device. The objective of correctly adjusting the depth of focus of the charged-couple device can be easily achieved.
Other embodiments of the invention will appear to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. It is intended that the specification and examples to be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
Patent | Priority | Assignee | Title |
Patent | Priority | Assignee | Title |
5111041, | Feb 16 1990 | Mitsubishi Denki Kabushiki Kaisha | Means for securing a photodetector to a base plate or the like |
6473205, | Jun 03 1998 | HANGER SOLUTIONS, LLC | Image sensor module adjustable in six degrees of freedom for use with an image acquisition device |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Jun 18 2009 | Transpacific IP Ltd | Transpacific Systems, LLC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 023107 | /0267 | |
Feb 13 2013 | Transpacific Systems, LLC | TITUSVILLE CANAVERAL LLC | MERGER SEE DOCUMENT FOR DETAILS | 030628 | /0681 | |
Feb 14 2013 | TITUSVILLE CANAVERAL LLC | Intellectual Ventures I LLC | MERGER SEE DOCUMENT FOR DETAILS | 030639 | /0330 |
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