TW200417757A - Light condensing device and its manufacturing method - Google Patents

Abstract

The invention provides a light condensing device and its manufacturing method. The light condensing device includes at least one reflective curved face which surrounds on a light source in a non-closed manner and is separated from the outer profile of the light source by a predefined distance. The cross section curvature of the reflective curved face uses plural position points sequentially taken on the outer profile of the light source and plural position points on a predefined area respectively as two focuses of an ellipse and incorporates a reference point located on the outside of the back of the light source to define plural ellipse curves. Then, a part of the envelope of the plural ellipse curves is captured to define the curvature of the cross section of the reflective curved face. Accordingly, the light radiated and emitted from each position point on the outer profile of the light source can be effectively condensed on the predefined area to be condensed, thereby greatly increasing the utilizing efficiency of the light emitted from the outer profile of the light source.

Description

200417757

[Technical Field of the Invention belongs The present invention relates to a use with a suitable imager, the light converging performance of a variety of device and manufacturing method, and particularly to an improved emitted light condensed by the outer profile Device and manufacturing method thereof. [Previous Technology] Mingmai Reading Picture 1 ’is a flat bed optical image scanner 1 scanner)

example. It is mainly provided on the upper surface of the scanner i housing ij with a manuscript carrying glass 12 (Document Wind 0w GUss) to hold a manuscript to be scanned (not shown in the figure), and a driving device 13 drives a Optical engine 14 / Optical Chassis) In the hollow casing η, enter the line = movement along the direction of the guide rod 15 to scan the image of the original on the glass 12. 2. Please refer to FIG. 2 ′, which is an A-A cross-sectional view of the optical engine 14 of the conventional image scanner 1 shown in FIG. The optical engine 14 includes: a hollow casing 14 ι, a light source module 1 4 2 positioned at an appropriate position on the upper side of the casing 1 41, a light guide device composed of a plurality of reflection lenses 143, and a lens Group 丨 44

(Lens Set) and a charge coupled device 145 (Charge Coupled Device, CCD for short). After issuing the document (not shown) on the glass 12 toward the light source module 142, a document which reflects the image light into the housing 14 of the optical engine 141, a plurality of mirror plate 143 of the light guide means which The reflection is folded to increase the optical path distance (〇pticai Length) to an appropriate length, and then focused on the lens group 144 to form an image on the charge light-combining element 1 4 5 and convert the scanned light image data into a computer for judgment.

Page 5 200 417 757

Read the electrical signal. FIG study two a and FIG. 14 of the optical engine, by which silver-based reflection mirror 143 formed on a thin plate of glass need to be additional reed ,, 146, with screws or clamp mechanism It is fixed at a predetermined position on the inner side of the housing 141. In addition, the == transmitting lenses 1 4 3 each have only one reflecting surface and can only reflect light once. Therefore, in order to achieve the total optical path length value (Total Track; referred to as TT value, as shown in Figure 2 ^ Y1 + Y2 + ... + Y5 total value) required for the clear focus imaging of the lens group, each reflective lens Distance between 143 and corresponding angle

Degree will need appropriate arrangements. As shown in FIG. 3, it is a schematic diagram of the relative position between a typical light source module 142 & and a scanning area 1 2 1. Please note that although the installation position of the light source module 142a shown in Fig. 3 is opposite to that shown in Fig. 2, but because it is a difference in viewing direction, both Fig. 2 and Fig. 3 are for illustration only. " Therefore FIG two opposite viewing direction does not affect the essence of the structure of FIG three light source module 1 42a of stating this. The light source module 1 4 2 a shown in FIG. 2 is generally composed of a light source 1 4 21

And a converging reflector 1422 combined configuration. The condensing and reflecting cover 1422 is provided mainly to reflect the light radiated from the light source 1 4 2 1 in all directions and focus the light toward the scanning predetermined area 121 located on the original or on the original bearing glass. The curved design of all the conventional condenser reflectors 1 422 is' the hope is that the light emitted from the "center point" of the light source 1 4 2 1 in all directions can be reflected by the condenser reflector 422. to scan a predetermined area is aggregated 121 designed in a way to enhance the use efficiency of the light source 1421

Page 6 200417757 V. Description of the invention (3) ---- Yes. The conventional typical light source module 142a shown in FIG. 2 has a light reflecting reflector 1 422 which is roughly a curved surface as the reflecting surface curve of the light reflecting reflector 1 422. However, due to the poor light-gathering effect of the arc surface, another reflection sheet was added later at a position closer to the predetermined scanning area, for example, as shown in FIG. In the conventional technique shown in FIG. 4 'apart from the original condensing reflector 1 422 surrounding the light source 1421, a planar reflecting sheet 1 423 is added to the scan predetermined area j 21, and it will be impossible to accurately focus the scan. The light in the predetermined area 1 2 1 is traced again, and the fixed area 1 2 1 is reflected. However, since the reflecting sheet 1423 of the conventional technology only has a simple flat reflecting surface, and the curved surface design of the reflecting sheet 1423 and the original condenser reflector 1 422 are also different and cannot cooperate with each other, it is still not a perfect light-gathering method. Some people have designed a more oval curve as a converging reflector section curve reflection surface 1422 of the design. For example, the Republic of China Patent Publication No. 48820 ^ text '1131 and U.S. Patent 1 ^: ^ 〇.5,430,282 Case No. 2 to expose the road as a reflecting surface of the elliptic curve cross-sectional profile design of the converging reflector, by the The center point of the light source and the predetermined area of the scan are respectively positioned on the two focal points of the expanding circle curve. In this way, in theory, all the light emitted by the center point of the light source (that is, one of the focal points of the elliptic curve) can be radiated. Focus on the predetermined area of the scan (that is, another focus of the elliptic curve). , Each day overview of the design principles of conventional techniques, is assumed that the light source based Cloth "point" source of light, which is limited only by the light system "center point" of the light emitted in all directions Koda prepare Powder Preparation. Such arguments when the light source is selected in a traditional "light bulb filament crane"

200417757 V. description of the invention might be appropriate (4). However, the current widespread use of the light source on the image scanner 1421 are using fluorescent light (fluorescent Lamp), the light source of the fluorescent light is not radiated emissions from the center point, but by the light source on each of the outer profile of the point (That is, the fluorescent material on the inner side of the light source surface) is lightly emitted and diverged in each direction. Therefore, the design of the cross-section curve of the reflecting surface of the condensing reflector of each conventional technology cannot meet the actual requirements of current image scanners, and the light utilization efficiency that it can improve is also limited, and needs to be further improved. SUMMARY OF THE INVENTION A first object of the present invention is to provide a light condensing device and a method for manufacturing the same, which can improve the utilization efficiency of light emitted from the outer contour of a light source through the improved design of the reflective curved surface of the light concentrating device. A second object of the present invention is to provide a light-concentrating device and a manufacturing method thereof. The light-concentrating device includes at least one reflective curved surface, which surrounds a light source in a non-closed manner and is separated from the outer contour of the light source by a predetermined distance. In addition, the cross-sectional curvature of the reflective curved surface is obtained by sequentially taking a plurality of position points on the outer contour of the light source and a plurality of position points on a predetermined area as the two focal points of the ellipse and matching a reference located outside the back side of the light source. after the points to define a plurality of elliptic curve 'then retrieve a portion of the envelope (envelope) of the plurality of elliptic curve to define a cross-sectional curvature of the reflective surface. Thereby, the light emitted from each position point on the outer contour of the light source can be more effectively concentrated on the predetermined area to be focused, and the light emission from the outer contour of the light source can be greatly improved. Take advantage of performance.

Page 8200417757

The third object of the system of the present invention is to provide an apparatus and method for manufacturing converging 'the converging means comprises at least one reflective surface which is non-closed and surrounds a light source to a predetermined distance from the contour of the peripheral light apart, And 'the curvature of the cross section of the reflective surface is obtained by sequentially taking a plurality of position points on the outline of the outer circle of the light source and the "middle point" on a predetermined area as the two focal points of the ellipse and matching one of the references located outside the back side of the light source After defining a plurality of elliptic curves by points, a part of the envelope of the plurality of elliptic curves (Envelope) is captured to define the cross-sectional curvature of the reflection surface. By this' simplified way to produce a plurality of elliptical envelope and the package. The fourth object of the invention is to line 9 to provide a braking device and a converging = 1 method, wherein the converging means comprises a line having a first reflection surface and a first reflective curved surface, the first and second reflecting surfaces one of the two lines are part of the envelope, the straight, and the first track and close to the water table strict non-closed manner, cushions exit surface area than the predetermined area based. By a, and the second reflecting curved surface is closer to the design, the reflection curved surface is designed to make both the luminous efficacy of the same surface. The role of the H project complements each other 'and further improves-so that your reviewers can make more progress on the present invention. _ Niu agrees, and hereby make a detailed description with the diagram, such as: "more understanding and [implementation methods] 】 The main spirit of this Maoyue's light attack device and manufacturing method. Yu-light source is separated by a predetermined distance from 4 == 曲 &

Page five 9200417757 described invention (6) a plurality of cross-sectional position of the point of the curvature of the reflective surface of the Sun more sister sequentially taken two other focal point of the light source and with a contour of a light positioned on Ji = f-number of the two positions when the points elliptic curve for the ellipse, and then capture; :: outside of: defining a reference point of a plurality of part (envelope); a:. :::: line of this envelope, the vapor of a light source reflected by the peripheral wheel surfaces the sectional curvature. By using the light emitted from the light source 3, it can be more effectively focused on the predetermined area of the peripheral wheel of the light source, and the utilization efficiency of the light emitted by the outline of Γ 阖 can be greatly improved. Collecting detailed configuration of the present invention means a manufacturing method thereof facing = and m = ΐ several preferred embodiments described in detail, action, effect, and which; FIG five cattle = no 'converging device 30 of the present invention and producing a real wash ^ J ^ be swept embodiment. Although the ⑨® towel is only drawn with the light collecting device 30 light; ==, but the concentrator 1 and the optical engine 14 of the present invention / and the second figure—and the image scanning take 4 shown in FIG. 2 are applicable to the present invention The image scanner 1 also generally has the same or similar optical engine 14, the driving device door I, the original document bearing glass 12, and other components. = Optical engine and likewise has a hollow housing 141, the light guide means (Shu comprises at least one anti-emitting engine:?. Element 1 4R, mirror group 144, and an image sensing element (e.g., a charge coupled port private) by drive means the optical engine relative to the plow document 3! emitted by the light source apparatus of the present invention having a converging device 30 emitting a light guide after 2 = strong light reflective document image into the housing of the optical engine, the first coating which is set by the guide Folded, then imaged on the image sensor and light

200417757

~, Shellfish feed is converted to an electrical signal for interpretation of the computer, you can carry out the scanning of a document to obtain the document image. Since the present invention is directed primarily "3〇 converging means" parts will be improved 'As for the other elements are substantially the same as the conventional art and the present invention a non-primary ^ v f ° so the following description will also only for condensing means 30 In detail, as for the description of other components of the image scanner other than the light condensing device, please refer to the drawings / and technologies shown in Figure 2 and will not repeat them below. The value of θ is mentioned. Although the aforementioned implementation of the light-concentrating device 30 of the present invention, ij 疋 u is placed on a flat-bed ("Flat Bed") image scanner using a "charge transfer element (CCD)" . However, the light condensing device 30 of the present invention has an image that is placed in a "paper feed" image scanner or using a "CM0S image sensor (CMOS image sensor)". Scanner. 9 As shown in Figure 5, (in the preferred embodiment) a 30-series scanning light concentrating device of the present invention is used to scan light on a predetermined area 5 1 (can be matched with a long light tube 31 side of a light source 4 glass carrier) in the cross-sectional profile having a circular-based document 50 (or document bearing a cross-sectional shape of the light source system 31 (diameter) of the profile with a predetermined size of the light source 311. the light receiving system 31 from the respective positions of the point source of the peripheral outline 311, respectively, toward each The direction. 畐 emits divergence, instead of diverging from each point of the light source 31 ^ in all directions. It is worth mentioning that although in this comparative example, a light source 31 with a long circular cross section is used as the light source, the light source may however also be a spherical bulb, or a linear array of dot-shaped LED light source, a light source ^ having other cross-sectional shapes of the contour's. or

200417757 V. Description of the invention (8) The light-concentrating device 30 has at least one first reflective curved surface 3 2 which surrounds the light source 31 in a non-enclosed manner and is separated from the outer contour 3 11 by a predetermined distance so that the light source 31 faces The side (the front side of the light source 31) of the original scanning area 51 of the original 50 is open and is not shielded by the first reflective curved surface 32 as an exit for light emission to a predetermined position. The first reflective curved surface 32 can be provided with a reflective film by coating a reflective film on a surface of a plastic case, pasting a light reflective sticker, or inserting a reflective sheet, so as to direct the light to the first reflective curved surface. The light of 2 is reflected. The main spirit of the present invention is that the cross-sectional curvature of the first reflective curved surface 32 is obtained by sequentially adopting a plurality of position points on the outer contour 3 11 of the light source 3 1 and a plurality of position points on the predetermined area 51. As the two focal points of the ellipse, and with a reference point 37 located outside the back side of the light source to define a plurality of elliptic curves, then extract a part of the envelope of the elliptic curves to define The cross-sectional curvature of the first reflective curved surface 32. In the embodiment shown in FIG. 5, the method for generating the envelope may include the following steps: Step 1. Provide the light source 31 and the predetermined area 51. The light source 31 has a peripheral outline 311 of a predetermined size on a cross section, and The predetermined area 51 is a line segment 5 11 in the same cross-sectional direction, and determines the relative position of the light source and the predetermined area. Step 2: Select a reference point 37 at an appropriate distance from the back side of the light source, and select a plurality of position points respectively on the outer contour 3U of the light source 31 and the line segment 5 11 of the predetermined area 51; for example, as shown in FIG. 5 Implementation

Page 12 200417757 V. Description of the invention (9) In the example, CO, C1,... Cn can be selected on the outer contour 311 of the light source 31, and CO 'is also selected on the line segment 511 of the predetermined area 51. C1,, ... Cn, a total of n points. In principle, the position of the reference point 37 is preferably located on a straight line determined by the center point of the light source 3 1 and the midpoint of the line segment 5 11, while the distance between the reference point 3 7 and the outer contour 3 11 of the light source 3 can be The optimal value is obtained in an experimental manner, so that the light source 31 has the best light condensing effect on the line segment 5 11. In the preferred embodiment according to the present embodiment, the light source 31 of the cross-section and a circular contour, the position of the reference point 37 is located at the center line 511 and the line segment midpoint between the points depending on the line light source 31 of piece goods, and a fake reference and The shortest distance between the point 37 and the outer peripheral ring of the light source 31 is X, and the diameter of the outer peripheral contour of the light source 31 is preferably d, and a better light collecting effect is obtained when 0.4 < X / D < 0.8. … Step three, one of the plural position points on the outer contour 31! And one of the plural position points on the line segment 5 11 are selected respectively, and the selected two position points are regarded as two of the ellipse The focal point does not coincide with the reference accounting for 37, and defines an elliptic curve; for example, in the implementation shown in FIG. 5, '::, 0, defines an elliptic curve E 0 for a set of reference points 3 ?. And the so-called r-matching η ^ mentioned here must fall on the ellipse of U "疋 ^ staring at the reference point and changing the selected peripheral contour 311 and / or line segment 511-two =, front-^; Λ produces a complex straight 'elliptic curve; example

Page 13 200417757 V. Description of the invention (step 5) An envelope (Envelope) is determined according to the plurality of rounding curves, wherein the cross section of the first reflecting curved surface 32 of the light collecting device 30 belongs to the envelope. Part of the line. 'Depicted in the envelope shown in FIG. 3 Shu the portion closer to the backside of the light source (i.e., a first reflecting curved surface 32) a part of its cross-section and slightly ω shape, i.e., a first reflecting curved surface 32 The portion closer to the back side of the light source 31 (the side farther from the predetermined area 51 is referred to as the back side of the light source 31) is protruded toward the back side of the light source 31, and becomes a shape similar to an ω. The reference point 3 and 7 just in the middle point position of the projection shape of ω. Of course, the above description is only one embodiment of the design and manufacturing method of the reflective curved surface 3 2 of the light concentrating device 30 of the present invention, and it is not the only embodiment. For example, in step three and step four 311 and the selected pair for a plurality of sequential position of a point on the outer profile of a line segment 51, can be changed with a C0 ,, C1 Cn with Cn-1 ,, ... Cn with CO.'S, Way to define n elliptic curves. Alternatively, each can be paired with a C0 C0 'to Cn ,, Cl with CO.'S also, to Cn', also mix until Cn CO 'to Cn', n2 generating elliptical curve. It is also possible to take η position points on the outer contour and m position points on the line segment to generate η times m elliptic curves. For this embodiment generates the envelope may be by "mathematical derivation" manner, or by the "Graphics" (may also be designed using computer software automatically the drawing) determined manner. The mathematical derivation formula for the envelope is a conventional calculation formula. For details, please refer to the Scientific and Technical Information Division of NASA (National Aeronaut i cs and Space Administration).

Page 14 200417757 V. invention is described in (11)

Published by NASA Reference Publication 1212

Technical Report 88-C-0 35 report, named "Theory of Gearing 'author Faydor L · Litvin (worked at The University when it wrote the report of Illinois at Chicago's Department of Mechanical Engineering), in the report of the The relevant mathematical derivation formula for the "envelope" can be found in Chapter 4.2, titled "Envelop of a Locus of Planar Curves" from page 68. As for the method of obtaining the envelope by drawing, you can use manual drawing or computer automatic drawing to draw a majority (possibly dozens or hundreds) according to the steps from step 1 to step 4 above. (Or thousands) of elliptic curves, and then a tangent direction is connected to each other according to the positions of the tangent points on the periphery of the plurality of elliptic curves to form a new curve. Among them, the first reflective curved surface 32 of the focusing device 30 The section of is part of the new curve. In the embodiment, in the further embodiment of the new profile is also formed in the periphery of a plurality of elliptic curve overlap each other at respective positions of maximum density to be in accordance with those connected. In addition, since the light collected by the light collecting device 30 hits the unpredicted area on the original 50, it will be reflected by the original 50 and a reflected image of the original traveling in a predetermined direction will be generated. Therefore, in the embodiment shown in FIG. 5, the 'the first reflective curved surface 3 2 is constituted by only capturing a portion of the envelope closer to the light source 31, and a portion closer to the predetermined area 51 is not included. In the first reflective curved surface 32. Therefore, the reflected light generated by the light collected by the first reflective curved surface 32 after entering the predetermined area 51 (that is, the reflected image of the original to be scanned) will not be subjected to the first reflective curved surface 3 2 Cover

Page 15 200417757 V. Description of the invention (12) file. In another preferred embodiment of the present invention, when the shape of the light source 3 丨 is a spherical fluorescent light bulb, since the cross sections of the light source 3 1 (spherical fluorescent light bulb) have different sizes in different positions, Therefore, the plurality of first reflective curved surfaces 3 2 which are sequentially determined according to the different cross-section positions of the light source 31 may have ω shapes, but their size and position will be slightly different. From the overall perspective, when the light source 3 j is outside When the type is a spherical fluorescent light bulb, the overall three-dimensional shape of the first reflective curved surface 32 will show a bowl-like structure, but the middle part of the first reflective curved surface 32 of the bowl-shaped structure (that is, the position of the reference point 37) will be Protruding toward the light source 31, that is, its cross section will still be as shown in FIG. See FIG. 6 for another embodiment of the light concentrating device 30 c of the present invention, which is different from the foregoing embodiment of FIG. 5 in that the light concentrating device 30 c includes a first reflective curved surface 32 c and a second reflecting curved surface 33, the first and second reflecting surfaces 32c, two lines of separation element 33 and are each a part of one of the same envelope. Among them, the first reflective curved surface 3 2 c is relatively close to the light source 3 1 c in a non-enclosed manner, and the second reflective curved surface 33 is adjacent to the predetermined area 51 ′. At least the distance between the two can reflect the original. The image passed. By designing the first and second reflective curved surfaces 32c, 33 to be the same curved surface design, the two can complement each other. Therefore, as compared to the reflective sheet 1 4 2 3 with different curvature designs shown in FIG. conventional art, the embodiments of the present embodiment shown in FIG. Six of the invention will be further enhanced condensing performance. Please refer to FIG. 7 for still another embodiment of the light condensing device 30 d of the present invention. The difference from the foregoing embodiment of FIG. 5 lies in the envelope shown in FIG.

2004177!) / V. Description of the invention (13) ____ 39 will be generated in a more enveloping way 39, which is borrowed from two = shown in Figure 7 'the preferred embodiment of the plurality of position points 31 9 ^ 依 ^ Take the light source 31d the peripheral contour in one position iH, moxibustion and which then were good on the predetermined region of 51) to as the elliptic 31 U: pre-tailed bird ::: an intermediate dot area of 51 to 511 from the outer reference point 37d of the most Let ’s define the first reflection surface (;, = Line = (EnVel〇pe) —partial surface 32c) The cross section curvature (the middle point of the first reflection curve 51 shown in Macco Figure 6 is used as the ellipse) The air-region circular curve 38 or Bao Di 2 2 1; I—focus, so no matter in the ellipse. The line 39 can be drawn or generated in a relatively simple way. the present invention is illustrated in detail, it is not limited 'Almost all well known in the art such: Shijie user can clear: in: changes and adjustments, yet still The essence of the invention lies: nor departing from the spirit and scope of the invention winter 'of #: the specific resistance of the present invention is applied consistently, Cheng Patent law has met the patent requirements = invention, wish, t review committee: Examine and grant the patent as a prayer.

200417757 Schematic description [Schematic description] Figure 1 is a schematic diagram of a conventional image scanner. Figure 2 is a schematic diagram of an optical engine of a conventional image scanner. Figure 3 is a schematic diagram of the relative position between a conventional typical light concentrating device and a predetermined scanning area. Figure IV is a schematic view of a relative position between the focusing means and a predetermined region of the other conventional scanning. FIG five condensing system of the first preferred embodiment of the present invention a schematic of the apparatus of FIG. Figure VI-based schematic diagram of a second preferred embodiment of the present invention the condensing means. Fig. 7 is a schematic diagram of still another embodiment of the light condensing device 30d of the present invention. Explanation of drawing numbers of the drawings: I-scanner II-housing 1 2-glass 1 2 1-scan scheduled area 1 3-driving device 14-optical engine 141-hollow housing 142, 142a-light source module 1 4 2 1-- source

200417757 Brief description of the drawings 1422-Condensing reflector 1423-Flat reflecting sheet 143-Reflective lens 1 4 4-Lens group 1 4 5-Charge-combining element 146-Reed 15-Guide bar 30, 30c, 30d-The present invention Condensing device 31, 31c, 31d-light source 31 1, 31 Id-peripheral profile 32, 32c-first reflective surface 33-second reflective surface 37, 37d-reference point 3 8-plural elliptic curves 3 9-envelope Line 5 0-Original 5 1-Scan predetermined area 5 1 1-Midpoint

Page 19

Claims (1)

200417757 6. Scope of patent application 1 · A light-concentrating device that can use Λ light with a light source whose cross-section is -predetermined: the light condensing the light source to a predetermined area is defined by every inch on the outline The outer perimeter 'and g., I ^ ^ ^ WL · ^ The set point radiates and diverges in all directions, but not from the light source's "points to each direction." The set includes: A reflection = ::: encloses the light source in a closed manner and is separated from the outer contour by a predetermined distance, which can reflect the light directed to the reflection surface, and the cross-sectional curvature of the reflection surface adopts the light sources in order respectively. The second of the plurality of position points on the periphery is defined as the two focal points of the ellipse with at least one position point on the predetermined area, and a reference point located outside the light source is used to define a plurality of elliptic curves so that After the elliptic curve passes through the reference point, a portion of the envelope of the plurality of elliptic curves (Envelope) is captured to define the cross-sectional curvature of the reflective curved surface. 2 · Convergence as described in item 1 of the scope of patent application Light equipment Wherein, the part of the envelope that is captured by defining the cross-sectional curvature of the reflective curved surface includes at least a part closer to the light source. 3 · The light-concentrating device according to item 1 of the scope of patent application, wherein the reference The position of the point is located on a straight line determined by two points of the central point of the light source and a central point of a predetermined area. 4 · The light-concentrating device according to item 1 of the scope of patent application, wherein after a predetermined region of incident light will be reflected by its reflection light and travels toward the predetermined direction, and defining the line portion of the cross-sectional curvature of the reflective surface of retrieved envelope does not cover the coffin reflected light. Page 20 200417757 6. The light-concentrating device according to item 1 of the patent application scope of 5.mfi, which makes that the light-concentrating clothing includes at least one reflective curved surface system including a first reflective curved surface and a second $ = $ ' The first and second reflective curved surfaces are two separate elements and are each part of the envelope. 6. The light condensing device according to item 5 of the scope of the patent application, wherein the first surface surrounds the light source closely and non-enclosed, and the second reflective 7 · curved surface is adjacent to the predetermined area. The condenser is described a device 'can scan a document image to obtain this document, comprising: Group on: engine ?? 1, further comprising: a hollow housing, - the two sides of a light source module in place, a light guide means, and: area: (iv) an image of the reflected light entering the optical engine bow Shu = the prognosis, the light guide bends to be opposed melon, and then imaged on the image transfer ur]: is available for the electric computer interpretation News ;; clothing and a driving position, for driving the movement of the optical engine fish 'to change the predetermined region on the opposing document: wherein Jin' of the light source module further comprises a light source ^ as a source of the cross-section and A device with a predetermined size has at least one reflective curved surface, which is a non-circular surface, and is separated from the outer contour by a predetermined distance, and ^ J is wound around 11th light. T ^ wj will be directed toward the reflective curved surface. and ,, be reflexive light, reflecting the cross-sectional surface are sequentially taken respectively on the plurality of locations of points on the contour of the periphery of the source region of the at least one predetermined position of the point as #, /, Hu Tian Bian two focal points of the ellipse, and Page chill Patent application 21200417757 Park range after hexyl unitary, outer one of the light sources A reference point to define a plurality of oval elliptic curve that the elliptic curve = line through the reference point, and then retrieve the plurality of curved lines + envelope (EnVel〇Pe) to define a part-sectional curvature of the reflective ®. 8. · The image scanner focusing device described in item 7 of the patent application scope, which will then 2 shadow the light collected by the reflective curved surface on a predetermined area on the original document 4? The original reflection and produce a predetermined direction The traveling original reflection = part < eight and 9 S which defines the envelope of the reflection of the cross-sectional curvature of the reflection surface; the second series will not obscure the reflection image. , The condensing means of the image scanner in item 7 ^ ^ Li range, opposing curved lines having its emitter comprising a first surface and a second anti-reflective envelope for ^ the first - and second reflecting curved line separating two The components are separate and unenclosed G-type parts, in which the first reflective curved surface is closer to a fixed area. The construction site surrounds the light source, and the second reflective curved surface is closer to the pre-1 0. —The manufacturing method of the first set includes the following steps: a predetermined size ^ a light source and a predetermined area, the light source is on the wearing surface The outline of the outer contour is 1 and the predetermined area is placed in the same cross-section direction, tk ', and determines the relative position of the light source and the predetermined area at the outer contour of the tower, the tower point, ,,,, /', selecting the line segment on the plurality of locations given area ΐϊΐ source select ί least a position of a point, and at a predetermined distance from a predetermined point-side area to select a test Page 22 200417757 VI. The scope of the patent application selects one of the plural position points on the outer contour and one of at least one position point on the line segment, and regards the selected two position points as an ellipse Two focal points are matched with the reference point to define an elliptic curve so that the elliptic curve crosses the reference point; change the selected peripheral contour and / or position point on the line segment, and repeat the previous step to generate A plurality of elliptic curves; an envelope (Envelope) is determined according to the plurality of elliptic curves, wherein a section of a reflective curved surface of the salt-condensing device is a part of the envelope. 11 · The method for manufacturing a light-concentrating device as described in item 10 of the scope of the patent application, wherein the light collected by the reflection curved surface will produce reflected light traveling in a predetermined direction after reaching a predetermined area, and define the reflection the captured cross-sectional surface of the part based envelope does not cover the right of the reflected light. 12. The method of manufacturing a concentrating apparatus of the patent application of paragraph 1〇 range, wherein the converging means comprises a line having a first reflection surface and a second reflective curved surface, the first and second reflecting curved surface based and separating the two elements that are one part of the envelope, wherein the first reflective surface and a non-closed system closer to surround the light source, and the second reflecting curved surface is closer to the predetermined region. 1 3. —A method for manufacturing a light-concentrating device, including the following steps: providing / light source and a predetermined area ’The light source has a peripheral outline of a predetermined size on a cross section, and the predetermined area is in the same cross-sectional direction Page 23200417757 six, the form of the patented scope line segment, and determining the source relative position of the predetermined area; selecting a plurality of position points on the line segment peripheral light of the profile of, and select one on the line predetermined area Position point, and a reference point is selected at a predetermined distance from the side of the light source farther away from the predetermined area, the reference point is located on a straight line determined by a center point of the light source and the position point on the line segment; the periphery is selected separately wherein one of the plurality of contour point position, and the position of a point on the line segment and the selected position of the two points as the two foci of an ellipse, and with the reference point, and define a curve, so that the elliptic curve line through the reference point; position of a contour of varying the selection of the point, and repeat the previous steps to produce a plurality of elliptic curves; overlap of maximum density in each position of each according to the plurality of elliptic curves be connected to form a new curve, wherein the cross section of the reflective surface of one of said converging means so that a part of the new line curve. 1 4. The method for manufacturing a light concentrating device as described in item 13 of the scope of the patent application, wherein the light collected by the reflection curved surface will generate reflected light traveling in a predetermined direction after entering the predetermined area, and define the The part of the new curve captured by the cross section of the reflective surface will not block the reflected light. 15. The method for manufacturing a light-concentrating device according to item 13 of the scope of the patent application, wherein the light-concentrating device has a first reflective curved surface and a second reflective curved surface, and the first and second reflective curved surfaces Two separate components Page 24 200417757 6. Scope of patent application It is a part of the new curve, wherein the first reflective curved surface is closer and non-enclosed to surround the light source, and the second reflective curved surface is closer to the predetermined area. Page 25