CN100367072C - Scanning unit of possessing reflective layer with high reflectivity - Google Patents
Scanning unit of possessing reflective layer with high reflectivity Download PDFInfo
- Publication number
- CN100367072C CN100367072C CNB2004100970733A CN200410097073A CN100367072C CN 100367072 C CN100367072 C CN 100367072C CN B2004100970733 A CNB2004100970733 A CN B2004100970733A CN 200410097073 A CN200410097073 A CN 200410097073A CN 100367072 C CN100367072 C CN 100367072C
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- reflector layer
- lampshade body
- scanning element
- groove
- plane
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- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
The present invention discloses a scanning unit with high-reflectivity reflecting layers, which comprises a lampshade body, two reflecting layers which are fixedly coated at the inner part of the lampshade body, and two lamp tubes arranged at the inner part of the lampshade body, wherein the lampshade body has two grooves corresponding to the lamp tubes and a channel arranged between the grooves, and the bottom surface of each of the grooves is composed of a continuous curved surface; the central lines of the curved surfaces of the bottom surfaces of the grooves intersect in a plane composed by the extension of central shafts of the lamp tubes to form a collection line which is positioned right above the channel. Thereby, the scanning unit can produce high brightness and be suitable for high speed scanning.
Description
Technical field
The present invention relates to a kind of business machine, particularly relate to a kind of scanning element that is installed in this business machine inside with highly reflective reflector layer.
Background technology
As shown in Figure 1, existing a kind of scanning element 1 that is installed on scanner inside, be the position above an optical-mechanical system 2, and the position is below one scan plane 3.This scanning element 1 has a holder 101, that is the L type and is installed in the fluorescent tube 103 that the inner and reflection shield 102 and that be the bent plate shape of this holder 101 is installed in these reflection shield 102 1 sides.
Though, above-mentioned scanning element 1 utilizes the curved surface of this reflection shield 102 can produce spotlight effect, but because the design of this single fluorescent tube 103, can produce the shortcoming of luminance shortage, cause not being suitable for high-velocity scanning, though and existing scanner emphasize high resolving power, so general sweep velocity is all very slow less demanding to incident light quantity, if the raising sweep velocity will find that the image quality that scans is not good.So will improve the speed of scanning under identical image scan quality, how promoting incident light quantity certainly will be the problem that needs solution.
In addition, these holder 101 inside are formed with a rectangular-shaped wall 101 ', when reflection shield 102 is installed in these holder 101 inside, this wall 101 ' can't provide the preferable polarization of this reflection shield 102, not only cause reflection shield 102 to produce distortion, quality instability easily, also can influence the effect of optically focused.
Summary of the invention
The object of the present invention is to provide and a kind ofly produce high brightness, be applicable to high-velocity scanning and the scanning element that structure is firm, spotlight effect is good with highly reflective reflector layer.
The present invention has the scanning element of highly reflective reflector layer, is mounted in an optical-mechanical system one side, and the position is below the one scan plane.This scanning element comprises the fluorescent tube that reflector layer, two that a lampshade body, two overlays on this lampshade body interior admittedly is installed in this lampshade body interior.This lampshade body has a pair of passage of should the plane of scanning motion and being arranged with and being located between the aforementioned grooves and extending along this length direction along the groove, that this length direction extends by this end face by a cross direction and the constructed end face that forms of a length direction, two, each is made of groove a pair of groove bottom of should cross direction and being continuous inner sunken face, groove bottom respectively has a curved surface center line and two ora terminalis in these curved surface center line both sides respectively, and forms a channel opening between ora terminalis.Reflector layer is to overlay on admittedly continuously on the groove bottom of this lampshade body respectively.Fluorescent tube is to extend along this length direction, and is installed in respectively in the groove of lampshade body, and each fluorescent tube has a central axis.The curved surface center line of this each groove bottom of lampshade body can constitute a plane towards the extension of central axis of each fluorescent tube, and the intersection of this two plane forms one and compiles line, this compile line be positioned at this passage directly over, and groove bottom is to be symmetry shape in the both sides, plane.
Whereby, when scanning element of the present invention starts, the light source that fluorescent tube produced utilizes the reflex of reflector layer, can drop on the presumptive area of this plane of scanning motion simultaneously with assembling, reenter and be incident upon optical-mechanical system, reaching the scanning purpose, and utilize the effect of the corresponding two reflector layers of two fluorescent tubes, can produce higher brightness, be highly suitable for the light source requirements of high-velocity scanning.
Description of drawings
The present invention is described in detail below in conjunction with drawings and Examples:
Fig. 1 is the scheme of installation of existing a kind of scanning element;
Fig. 2 is the scheme of installation of a preferred embodiment of the present invention;
Fig. 3 is the perspective exploded view of the above-mentioned preferred embodiment of the present invention;
Fig. 4 is the optically focused synoptic diagram of the above-mentioned preferred embodiment of the present invention, illustrates that the light source of two fluorescent tubes can collect on the one scan plane through the reflection of two reflector layers.
Embodiment
As shown in Figure 2, the present invention has scanning element 100 preferred embodiments of highly reflective reflector layer, be to be applicable to ... wait business machine, and be installed in an optical-mechanical system 200 1 sides as scanner, duplicating machine, and the position one can be for the plane of scanning motion 300 of placing file below.This scanning element 100 comprises the fluorescent tube 30 that reflector layer 20, two that a lampshade body 10, two overlays on these lampshade body 10 inside admittedly is installed in these lampshade body 10 inside.
Cooperate and to consult Fig. 3, this lampshade body 10 have a pair of should the plane of scanning motion 300 and be arranged with and be located between the groove 12 and the passage 13 that extends along this length direction Y and the two couples of corresponding length direction Y are arranged on the locating groove 15 in the outside, groove both ends by this end face 11 along the groove 12, that this length direction Y extends by the constructed end face that forms of a cross direction X and a length direction Y 11, two.Each is made of aforementioned grooves 12 a pair of groove bottom 14 of should cross direction X and being continuous inner sunken face, and the curve that constitutes groove bottom 14 is for being higher than the equational kneading curve of quadravalence (fitcurve).Aforementioned grooves bottom surface 14 respectively has a curved surface center line L1 and two ora terminalis 141 in this curved surface center line L1 both sides respectively, and forms a channel opening 142 between ora terminalis 141.
Cooperate and consult Fig. 3, aforementioned fluorescent tube 30 is to extend along this length direction Y, and be installed in respectively in the groove 12 of lampshade body 10, but and respectively have an illuminating part 31 and two and be attached at sheath 32 in the locating groove 15 that these illuminating part 31 two ends and inlay card be positioned at this lampshade body 10 respectively.And the ratio of the circle footpath D of each fluorescent tube 30 and channel opening 142 width W of this groove 12 is less than 0.3.
When sheath 32 inlay cards of fluorescent tube 30 in locating groove 15, and when making illuminating part 31 just be installed with in the groove 12 of this lampshade body 10, the curved surface center line L1 of each groove bottom 14 extends towards corresponding fluorescent tube 30 1 central axis C can constitute a plane P, two plane P intersections are on this plane of scanning motion 300 and form one and compile line L2, this compile line L2 be positioned at this passage 13 directly over, and each groove bottom 14 is to be symmetry shape in the plane P both sides.
Again as shown in Figure 4, when activating scanning element 100, the light source that the illuminating part 31 of fluorescent tube 30 is produced utilizes the reflex of reflector layer 20, can drop on the presumptive area of this plane of scanning motion 300 simultaneously with assembling, reenter and be incident upon optical-mechanical system 200, to reach the scanning purpose.And utilize the effect of two fluorescent tube 30 corresponding two reflector layers 20, can produce higher brightness, be highly suitable for the light source requirements of high-velocity scanning.And the high-order scanner requires sweep velocity fast, and quality will be got well, thus utilize the present invention reflected light can be concentrated, and then promote the scanning incident light quantity and make the optical-mechanical system 200 of scanner obtain good signal, help to improve image quality.
Moreover, lampshade body of the present invention 10 inside directly are formed with the groove bottom 14 of continuous curve surface, and reflector layer 20 is directly to overlay on admittedly on this groove bottom 14, reflector layer 20 and groove bottom 14 fixed, polarization is high, the curve of reflector layer 20 can not produce distortion, and spotlight effect is good.
And, the ratio of channel opening 142 width W that utilizes the circle footpath D of fluorescent tube 30 and this groove 13 is less than 0.3 effect, it is less that then the circle footpath D of fluorescent tube 30 covers pairing reflector layer 20 scopes, influence to reflection ray is also less, and the present invention utilizes two fluorescent tubes 30 to produce light simultaneously, and with reflector layer 20 reflection sources, just can produce higher incident light quantity, and in case improve the scanning incident light quantity, just can make the optical-mechanical system of scanner reach the purpose of good signal.
What deserves to be mentioned is, cooperate and consult Fig. 4, when the curve of design groove bottom 14, be to set on this plane of scanning motion 300 earlier to have a light source concentrated area, and the incident angle of utilizing light equals the reflection angle effect, just can around fluorescent tube 30, form most points, these some polyphones just can be constituted a continuous curve.
Claims (5)
1. the scanning element with highly reflective reflector layer is mounted in an optical-mechanical system one side, and the position below the one scan plane, this scanning element comprises a lampshade body, it is characterized in that:
This lampshade body, has a pair of passage of should the plane of scanning motion and being arranged with and being located between the groove and extending along this length direction along the groove, that this length direction extends by this end face by a cross direction and the constructed end face that forms of a length direction, two, each is made of aforementioned grooves a pair of groove bottom of should cross direction and being continuous inner sunken face, groove bottom respectively has a curved surface center line and two ora terminalis in these curved surface center line both sides respectively, and forms a channel opening between ora terminalis;
This scanning element also comprises:
Two reflector layers are to overlay on admittedly continuously respectively on the groove bottom of this lampshade body;
Two fluorescent tubes are to extend along this length direction, and are installed in respectively in the groove of lampshade body that each fluorescent tube has a central axis; And
The curved surface center line of this each groove bottom of lampshade body can constitute a plane respectively towards the extension of central axis of each fluorescent tube, this two planes intersection is on this plane of scanning motion and form one and compile line, this compile line be positioned at this passage directly over, and groove bottom is to be symmetry shape in the both sides, plane.
2. the scanning element with highly reflective reflector layer as claimed in claim 1 is characterized in that: the circle footpath of aforementioned fluorescent tube is not more than 0.3 with the ratio of the channel opening of this groove.
3. the scanning element with highly reflective reflector layer as claimed in claim 1 is characterized in that: aforementioned reflector layer is to form in the mode of spraying paint.
4. the scanning element with highly reflective reflector layer as claimed in claim 1 is characterized in that: aforementioned reflector layer is to form with plating mode.
5. the scanning element with highly reflective reflector layer as claimed in claim 1 is characterized in that: aforementioned reflector layer is to form in the pad pasting mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100970733A CN100367072C (en) | 2004-12-21 | 2004-12-21 | Scanning unit of possessing reflective layer with high reflectivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100970733A CN100367072C (en) | 2004-12-21 | 2004-12-21 | Scanning unit of possessing reflective layer with high reflectivity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1797063A CN1797063A (en) | 2006-07-05 |
| CN100367072C true CN100367072C (en) | 2008-02-06 |
Family
ID=36818251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100970733A Expired - Fee Related CN100367072C (en) | 2004-12-21 | 2004-12-21 | Scanning unit of possessing reflective layer with high reflectivity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100367072C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008028672A (en) * | 2006-07-20 | 2008-02-07 | Nisca Corp | Reflection mirror unit in image reader and image reader using the same |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4458264A (en) * | 1981-01-20 | 1984-07-03 | Canon Kabushiki Kaisha | Apparatus and method for reading multi-color original |
| US4518987A (en) * | 1982-04-06 | 1985-05-21 | Fuji Xerox Co., Ltd. | Three-color copying machine |
| JPH05188490A (en) * | 1992-01-14 | 1993-07-30 | Sharp Corp | Lamp unit for color copying machine |
| JPH05199366A (en) * | 1992-01-20 | 1993-08-06 | Ricoh Co Ltd | Original lighting device for original reader |
| US5469303A (en) * | 1994-06-07 | 1995-11-21 | Umax Data Systems Inc. | Brightness compensation for a lamp shade in an optical scanner |
| CN2446502Y (en) * | 2000-09-27 | 2001-09-05 | 鸿友科技股份有限公司 | Light source device of optical scanner |
| CN1397905A (en) * | 2002-08-07 | 2003-02-19 | 力捷电脑股份有限公司 | Light source module |
| US20040075047A1 (en) * | 2001-02-20 | 2004-04-22 | Markus Schnitzlein | Device and method for linear illumination of an object using leds and an elliptical mirror |
-
2004
- 2004-12-21 CN CNB2004100970733A patent/CN100367072C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4458264A (en) * | 1981-01-20 | 1984-07-03 | Canon Kabushiki Kaisha | Apparatus and method for reading multi-color original |
| US4518987A (en) * | 1982-04-06 | 1985-05-21 | Fuji Xerox Co., Ltd. | Three-color copying machine |
| JPH05188490A (en) * | 1992-01-14 | 1993-07-30 | Sharp Corp | Lamp unit for color copying machine |
| JPH05199366A (en) * | 1992-01-20 | 1993-08-06 | Ricoh Co Ltd | Original lighting device for original reader |
| US5469303A (en) * | 1994-06-07 | 1995-11-21 | Umax Data Systems Inc. | Brightness compensation for a lamp shade in an optical scanner |
| CN2446502Y (en) * | 2000-09-27 | 2001-09-05 | 鸿友科技股份有限公司 | Light source device of optical scanner |
| US20040075047A1 (en) * | 2001-02-20 | 2004-04-22 | Markus Schnitzlein | Device and method for linear illumination of an object using leds and an elliptical mirror |
| CN1397905A (en) * | 2002-08-07 | 2003-02-19 | 力捷电脑股份有限公司 | Light source module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1797063A (en) | 2006-07-05 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20080206 Termination date: 20111221 |