TW577219B - Improved structure of light source module - Google Patents

Abstract

The invention discloses an improved structure of light source module, which is mainly the reflection plate of light source module isposed in the image extracting apparatus of optical scanner. In the invention, the design of improved reflection plate is used to generate compensation effect for the light source so as to decrease light scattering and the waste. One part of the light, which is originally scattered after being reflected by the reflection plate, is focused and reflected to the scanned document. By using the designed structure of appropriate angle and position, the reflection plate can totally reflectlight onto the scanned document so as to obtain better scanned-image quality, in which the reflection plate can be designed to have two pieces such that one reflection plate can reach light compensation function, or one reflection plate is designed to have two reflection portions and one of these two parts can achieve light compensation function.

Description

577219 V. Description of the invention (1) (I) Field of the invention: The invention relates to a light source module with improved surname 椹, surname ^ image capture device is good, .... Structure, in particular, the designer who improved the reflector of the shadow / original module. () Description of related skills: Zhongbuao: Deep into every home and business, becoming a sub-product of modern life, and with the popularity of computer multimedia, it needs to become Α peripheral products for input and output. Device, Fuzhong Sweep 3 | It has become an important computer input device. The production field of Yu Ying = Zhongzhi Describe is an indispensable computer: The input range of 2-character data is extremely extensive. 'Lack of the' periphery 'and the scanner's lamp holder is used as an optical scanner for scanning documents, and the scanned image is displayed by a setting, so the processing of the light source will affect the quality of the image. 'Because it is not good'! 2 makes it possible to enter the photovoltaic device after the mirror = scan product i? Unknown miscellaneous 5 ^, or it will detract from the scanner should be shown in Figure 1. 'This is the current market The schematic diagram of the three-dimensional structure of a typical platform Γι can be seen above. It is mainly a scanner 1 housing = the upper surface is provided with a manuscript bearing glass 12 to receive a reflection. ^ An image capturing device 2 is driven by a driving device 13 Perform a linear movement in the hollow shout along the direction of the guide rod 14 with it # t

111 Μ Page 4 577219 V. Description of the invention (2) Reflective scanning Wenlinsu on glass 12 Please refer to Figure 2; Scanning works with 1 "and 5" images. Group diagram. See Figure 2! Take the light source module in the device, Sun Zhizhi Zhi,, "You Yuan mode, and one of the 20 long light source lampshade 201 !: the lamp tube 200) or the mechanical support, the light comes out _ 面 1 There is a reflective sheet 202 for providing light compensation emitted by the lamp tube 200 for light compensation to distribute the lamp tube 20 ° = taxi. 2 is reflected on document 15. However, due to the relationship between the light and the J light officer, it is limited by its uneven brightness. Due to the influence of the uneven brightness, the quality of the scanned image is also affected by the scanning of the scanned object by the mold line. For example, the light source r * "handle 95 of the light source in Fig. 2 is irradiated with light. At this time, it is irradiated to the document 15 =: = the opening 210 is directed to the document 15, and the light directed to the document 15 is ^ mail and head. In addition to the light directly hitting the document 15, there is also light from the lampshade, and the light reflected from the light source of the Japanese reflection sheet 202 will also be reflected to the document 15, which will fall on the position 15 of the scanning range of the document 15. Its == the light 22 reflected by the reflection sheet 202 is because the reflection angle J ^ p will fall on the second scanning range 151, 152 of the document 15 and the light 22 in the second scanning range 151 is wasted. There is no sufficient time I *, because the scanner scans only one bit scan line per unit time during the scanning process, so only one scan is performed in each unit. If the first scan range is 150 ) To be scanned, and other rays that fall outside the first -scanning 0 2 2 ( If it falls in the second scanning range 577219 V. Description of the invention (3) 1 5 1, 1 5 2) is not used and is therefore inefficient, so these rays 22 falling in the second scanning range 151, 152 if If it falls within the first scanning range of 150, it means that the light source efficiency is effectively used to a large extent, and the document is also illuminated with a strong light intensity, and the relative scanning process also has better scanning quality. Brief description of the invention: In order to improve the shortcomings of the conventional technology, the main purpose of the present invention is to improve the design of the reflection sheet in the light source module in the image capturing device, and the design of the improved reflection sheet is mainly used for the light source. Compensate to reduce the dissipation of light and create waste, so that the light (such as light 22 described in Figure 2) that is scattered after a part of the light is reflected by the reflector is collected and reflected on the scanned document In addition, the design structure of the Shita angle f and position is used to make the reflective sheet completely reflect the light onto the scanning ox, so as to obtain better scanning image quality. : The first preferred embodiment of the invention +, the present invention includes a lamp tube, a chirped reflection sheet, a second reflection sheet, etc. The first-reflection sheet functions as the light emitted by the original combined dissipation II, and the second reflection sheet It serves as the function of concentrating and reflecting ^ Μ 禆 贤 at the scanned document. The first-inside is fixed on the lamp tube ^ inside the lampshade, and the second reflecting sheet is fixed by the fixing device. 片: ί Ϊ 佳The embodiment of the present invention includes a lamp tube, a lamp cover and a portion, and the first-reflection portion ii :: 'can be distinguished from the first reflection portion and the second reflection P to function as the second reflection sheet in the first preferred embodiment.

Page 6 577219 V. Description of the Invention (4) Function, the function of the second film. The third reflector and so on. The reflecting part can function as the first and second reflecting parts. Among them, the second reflecting part is not as good as the side, and the reflecting part properly fixed to both sides of the lamp tube functions as the second reflecting part. In the preferred embodiment, the reflecting sheet includes the first preferred embodiment. The first preferred portion is located between the second and the second distance. The first reflection in the first preferred embodiment is closely attached to the inner surface of the lampshade. The invention includes a lamp tube, a lamp cover, a reflecting part and a second reflecting part, the function of the second reflecting sheet in the first example, the inner surface of the work lamp cover of the first reflecting sheet in the first embodiment, and the space between the lamp tube. In the preferred embodiment, it is closely attached to the inner compartment of the lampshade. In addition, the reflection sheet uses the fixing part. For further explanation of the present invention, the following drawings, descriptions of the drawing numbers, and detailed description of the invention are provided to help the reviewers of the & (5) Detailed description of the present invention: The present invention is an improved structure of a light source module, which is mainly set in the = -scanner's-image # | 取 装置 +, and the image captures the empty shell during scanning The object to be scanned is moved back and forth for scanning. The light source mode = provides the light source required for the optical scanner to scan the scanned file. The design of the improved reflector is used to compensate for the light source. A part of the light will be reflected by the reflection sheet and then diffused 'to be collected and reflected on the scanned document, and the design structure of the appropriate position and position will be used to make the reflection sheet fully reflect the light onto the scan. The lack of light makes the brightness of the light source

_ 577219 V. Description of the invention (5) ------ Not only can be evenly distributed, but also fully utilize the original efficiency of the light emission line, so that the intensity of the light irradiated to the document can be strengthened to obtain a better scanned image quality. The following drawings are used to explain the detailed structure of the present invention and its connection relationship 'to facilitate your understanding of the review committee. Please refer to FIG. 3A, which is a light reflection diagram of the first preferred embodiment of the present invention. As shown in FIG. 2A, this preferred embodiment is an improved structure that can be used on a light source (such as a lamp tube 300) in a light source module, and includes: a lamp tube 300, a lamp cover 301, and a first reflection sheet 302. And the second reflection sheet 303 and the like. The lamp tube 300 provides the light source required by the optical scanner for scanning; the lamp cover 301 is designed behind the lamp tube 300 and covers the lamp tube 300 to provide the bearing or mechanical force of the lamp tube. The lamp cover 301 The interior is in the shape of a circular arc, and the interior is a hollow groove structure 32 to accommodate the lamp 300, and the groove structure 32 is an arc with a groove relative to the lamp 300 tube. The inner surface of the structure 32 is provided with a smooth reflection sheet (for example, the first reflection sheet 302). The first reflection sheet 302 is used to reflect the light emitted by the lamp tube 300 to reflect the light to the document. The first scanning range of 15 is over 150. The opening 31 allows the light of the lamp tube 300 and the light reflected by the first reflection sheet 32 to be emitted from the opening direction of 31 to the scanned document 15. Furthermore, the feature of the first preferred embodiment further includes a second reflecting sheet 303. The second reflecting sheet 303 is disposed above the lamp tube 300 to reflect a part of the first reflecting sheet 302. The light directed to one of the scan files 15 in the second scanning range 1 51 (for example, the light 22 in FIG. 2) is blocked and reflected by the second reflection sheet 3 0 3 and is directed toward the scan file.

Description of the invention (6) < First sweeping range 150 1 5 Use 弁 绐 之 弁 绐 ry-this way, the original scan can be invalidated 50 and avoided: t2, light 22) back to the area to be scanned The original product is in the range of 1㊣1 or 1 52. According to the present invention, the light that is used by the zirconium and z & effect is guided back to the first scanning range of 150 and is foolish: the light that hits the second scanning range 151 or 152 is originally used for power坆: Selective quality is not helpful, but a new style is provided by the implementation of the present invention. Rijin has improved the design of inefficient light sources in conventional technology. The design of the second reflection sheet 303 prevents the ineffective light from being scattered to other light. In cooperation with the first reflection sheet 302, the light tube 30 is emitted. Four-quarters of the reflections are reflected on the manuscript 15 and the lines are reflected on the valid area at the time of scanning. ^ Please refer to FIG. 3 β, which is a structural diagram of the first preferred embodiment of the present invention, and the diagram is shown in FIG. 2B. The first reflection sheet 303 includes a reflection portion 304 and a fixing portion 3 0, and the reflection portion 3 0 The 4 series is a long structure, and its length is approximately the length of the lamp tube 300. The fixing portion 305 is located at both ends of the reflection portion 304. The second reflection sheet 303 can be fixed on both sides of the lamp tube 300 through the fixing portion 305 to fix the second reflection sheet above the lamp tube 300, for example. The fixing part 305 can be fixed on both sides of the lamp tube by winding, of course, other fixing methods can also be used. The second reflection sheet 303 is tangent to the surface of the lamp tube 300 at an appropriate angle. The tangent angle is related to the reflection angle of the light 2 2 described in FIG. 3A. This can be seen in practical applications. Make adjustments as needed. Please refer to FIG. 4A ′ which is the light of the second preferred embodiment of the present invention.

577219 V. Description of the invention (7) --- Reflection reflection map. As shown in FIG. 4A, in the preferred embodiment, the reflective sheet is also improved. The light source module 40 includes a lamp tube 40, a lamp cover 401, a reflective sheet 40, and the like. Among them, the structures and functions of the lamp tube 400, the lamp cover 401, the document 15, the first scanning range 150, and the second scanning range 15m and the related light reflection conditions are substantially the same as those described in FIG. 3A. The feature of this second preferred embodiment is that only one reflection sheet 402 is required, but it can be designed that the two reflection portions are the first reflection portion 403 and the second reflection portion 404, and the first reflection portion 403 The second reflecting portion 404 is concavely foldable through a concave fold line 405. The second reflecting portion 404 of the reflecting sheet 402 is designed to be closely attached to the inner surface of the lamp cover 401 so as to align the lamp tube 400. The light of the emitted light is reflected, so the first reflecting portion 404 is at a proper distance from the lamp tube 40 to allow the light to reflect. Please refer to FIG. 4 for a schematic structural view of a second preferred embodiment of the present invention. As shown in FIG. 4B, the first reflecting portion 403 and the second reflecting portion 404 in the reflecting sheet 402 are concavely foldable, and a concave folding line 405 is provided between the first reflecting portion 403 and the second reflecting portion 404, and Can be concavely folded into an appropriate angle, this appropriate angle is still adjusted according to the actual design needs, the main purpose is still to block part of the light (for example, the light 2 2 in Figure 2) from the second scan range 1 of the document 15 51, and through the design of the second preferred embodiment, no light 22 similar to that shown in FIG. 2 is generated. The function of the first reflection part 403 is the same as the second reflection sheet 303 in FIGS. 3A and 3B, and the function of the second reflection part 404 is the same as the first reflection sheet 302 in FIG. 3A and FIG. The portion 403 and the second reflection portion 404 may be integrated into a single reflection sheet 402. Please refer to FIG. 5A, which is a schematic diagram of light reflection according to a third preferred embodiment of the present invention. As shown in Fig. 5A ', this preferred embodiment also applies a reflective film

577219 V. Description of the invention (8)-Improved design. The light source module 50 includes a lamp tube 500, a lamp cover 501, and a reflective sheet 502. The structures and functions of the lamp 500, the lamp cover 501, the document ^, the second scanning range 150, and the second scanning range 151 and the related light reflection are substantially the same as those described in FIG. 3A. In the third preferred embodiment, only one reflection sheet 502 is needed, and the two reflection parts can be divided into a first reflection part 503 and a second reflection part 504. The reflection sheet 502 is designed. Between the inner surface of the lamp cover 501 and the lamp tube 500, the juice is not closely attached to the inner surface of the lamp cover 501 as shown in Figure 4. Therefore, the second reflecting portion 504 is appropriately spaced from the inner surface of the lamp cover 501. Distance, the second reflecting portion 504 is also at a proper distance from the lamp tube 500 to reflect light. The lamp cover 500m can still provide mechanical force support to the lamp tube 500, and the reflection sheet 502 is fixed on both sides of the lamp tube 500 by the fixing portion 500. The first reflecting portion 503 and the second reflecting portion 504 can still be concavely folded, and they can also be concavely folded into an appropriate angle and adjusted according to actual design requirements. Similarly, according to the third preferred embodiment, The design is generated similar to the light 22 in FIG. The function of the first reflection part 503 is the same as that of the second reflection sheet 303 in FIG. 3 a and FIG. 3 B, which can prevent the dissipation of light and reflect the light onto the document 15. The function of the first reflection sheet 302 in FIG. 3B. The first reflection portion 503 and the second reflection portion 504 can be integrated into a reflection sheet 502. Please refer to FIG. 5B, which is a schematic structural view of a third preferred embodiment of the present invention. As shown in FIG. 5B, the reflection sheet 502 includes a first reflection portion 503, a second reflection portion 504, and a fixing portion 505. The fixing part 505 is located at both ends of the reflecting sheet 502, and can be fixed on both sides opposite to the lamp tube 500, so that

Page 11 577219 V. Description of the invention (9) The second reflecting sheet is fixed above the lamp tube 300. For example, the fixing part 305 can be fixed on both sides of the lamp tube by winding, of course, other fixing methods can also be used. Similarly, the first reflecting portion 503 and the second reflecting portion 504 can be concavely folded at an appropriate angle. The design of the reflecting sheet of each of the above-mentioned preferred embodiments is improved to have two reflecting parts, which have different actual effects, so that the light emitted by the light source is evenly distributed and diffused by the radiation, resulting in waste. And with a good irradiation intensity on the document, the new reflection quality is provided by the effective reflection function. The drawings and detailed descriptions of the present invention are as described above, and the purpose is only for borrowing, not for limiting the understanding of the present invention. After making minor changes and retouching, the scope of the patent application and It is explained that the present invention prevents the light from unnecessarily compensating the light source by using the light source mode reflection sheet or on a reflection sheet, but each embodiment has its own characteristics and can play a similar light to appropriately gather or scan the light on the document. Loss, and provide a more effective enhancement of the light of the light source than the present invention, to improve the scanning image is a preferred embodiment of the embodiment to help users understand the true spirit of the present invention, and those skilled in the art Within the scope of departure from the spirit of the present invention, when changes are made and replaced, the scope of patent protection depends on the equivalent field.

Page 12 577219 Brief description of drawings (4) Brief description of drawings: Figure 1 is a schematic diagram of the three-dimensional structure of a conventional platform-type optical scanner. Figure 2 is a schematic diagram of a light source lamp holder in a conventional image capturing device. Fig. 2A is a schematic diagram of light reflection in the first preferred embodiment of the present invention. FIG. 3B is a schematic structural diagram of a first preferred embodiment of the present invention. Figure 4A is a schematic diagram of light reflection in the first preferred embodiment of the present invention. FIG. 4B is a schematic structural diagram of a first preferred embodiment of the present invention. Fig. 5A is a schematic diagram of light reflection in the first preferred embodiment of the present invention. Figure 5B is the invention + & j. The structure of the first preferred embodiment of the month is not illustrated in the figure. Explanation: I-Scanner II-Housing 12-Original Carrying Glass 13-Driving Device 14-Guide 15-Scanning Document 150-First Scanning Range 1 5 1-Second scanning range 2 ~ image capture device

577219 Brief description of the drawing 2 0 0, 300, 40 0, 50 0-Lamps 201, 301, 401, 50 Bulbs 2 02, 302, 30 3, 402, 50 2-Reflective sheet 3 0 4-Reflector 305 505-Fixed part 403, 503-First reflective part 404, 504-Second reflective part 4 0 5 -Concave polyline 2 2 -Light

3 opening 32-groove structure

Page 14

Claims (1)

577219 Case No. 91115113 VI. Application Patent Scope 1. A light source module to provide the light source, which includes a lamp tube, a lampshade lamp tube, the light emitted from the concave structure, and the first reflection sheet side, in order to convert a 2 · For example, the second anti-reflection structure described in the patent application, 3. As in the two ends of the second anti-reflection part described in the patent application, to make the 4. The second anti-reflection as described in the patent application. 5. A light source module to provide the light source. 'It includes an improved structure of a lamp tube group, and the surface β _ and De Rulan are mainly set in an optical scanner. Zitian " has the light required during the scanning of a scanned object. The required light · 'The interior is a hollow groove structure to accommodate the groove structure is a circular arc with respect to the lamp tube, the groove surface is provided with a first reflective sheet to reflect the The lampshade issued by the lamp tube further has an opening, so that the light of the lamp tube and the reflected light can be emitted into the scanning range from the direction of the opening; a reflection sheet, and the second reflection sheet is arranged on the upper part of the lamp tube to be dispersed and escaped. The light is reflected back into the scanning range. The improved structure of the light source module according to the first item of the scope, wherein the transmission sheet includes a reflection part, and the reflection part is a long strip, and the length is approximately relative to the length of the lamp tube. The improved structure of the light source module according to the second item in the scope, wherein the shot sheet further includes a fixing part, which is located there, and the two second reflecting sheets which can be fixed to the lamp tube through the fixing part are fixed to the Above the lamp. The improved structure of the light source module described in the first item of the scope, wherein the shot is an tangent at an angle to the surface of the lamp tube. The improved structure is mainly set in the optical scanner, and the scanner scans a scanned object. The light required in the process is ..., providing the light required for scanning; Page 15 / ^ 19A No. 9imm 6. Scope of patent application 修 略 # And the inner part of the cover is a hollow groove structure to accommodate the two-elements. The groove structure is an arc shape with respect to the lamp tube. The groove: the inner surface of the structure A reflector is provided to reflect the two emitted by the lamp. The lampshade has an opening, which allows the light of the lamp and the light reflected by the reflector to be emitted from the direction of the opening to the scanning range; It is characterized in that the reflecting sheet has a first reflecting part and a second reflecting part. "卩 '" The first reflecting part is located on the inner surface of the groove structure and the lamp tube Ff, f so as to be shot by the lamp tube. The light towards the lampshade is reflected to the scanned object through the opening; the first reflecting portion is connected to the second reflecting portion and is disposed above the reflecting sheet to reflect a part of the scattered light to the range again. 6. The improved structure of the light source module according to item 5 of the scope of the patent application, wherein the second reflecting portion is partially arc-shaped around the lamp tube. 7. The improved structure of the light source module according to item 5 of the scope of the patent application, wherein the second reflecting portion is closely attached to the inner surface of the lamp cover and is at an appropriate distance from the lamp tube. 8. The improved structure of the light source module according to item 5 of the scope of the patent application, wherein the first reflecting part is located between the inner surface of the lamp cover and the lamp tube, and has a proper distance. 9. The improved light source module described in item 5 of the scope of the patent application, the first-reflection part is a long structure, and its length is approximately the length of the lamp tube. Improved structure of T $ group, in which all lengths are approximately relative to 10. · As described in Item 5 of the scope of patent application, the second reflecting part described in the light source model is a long structure, 577219 Case No. 91115113 92. Π, ± _Ά said Amendment 6. Scope of patent application The length of the tube. 11. The improved structure of the light source module according to item 5 of the scope of the patent application, wherein the reflecting sheet further includes a fixing portion, the fixing portion is located at both ends of the reflecting sheet, and can be fixed to the fixing portion via the fixing portion. Both sides of the lamp. 1 2. The improved structure of the light source module according to item 5 of the scope of the patent application, wherein the first reflecting portion is tangent to the surface of the lamp tube at an angle. ❿ Page 17