TW200906165A - Optical scanning module with linear complementary metal oxide semiconductor (CMOS) image sensor - Google Patents

Abstract

A linear complementary metal oxide semiconductor (CMOS) image optical scanning module (Optical Scanning Module with Linear CMOS Image Sensor) applies to scanners or multifunction office equipment, including: a light source that can emit scanning light, a reflection mirror group, a focus lens group, a linear CMOS image sensor which contains at least one linear CMOS image sensor unit, and an A/D analog-digital converter. The light source can be one of cold cathode fluorescent lamp (CCFL), xenon (Xe) gas lamp, or direct type light-emitting diode (LED). Light source, after emitting light, illuminates the scanned objects, which reflect the light to become scanning light. After focusing by the reflection mirror group and focus lens group, the scanning light is focused on the CMOS image sensor unit of CMOS image sensor and converted to electronic signals, which is again converted to digital signals by A/D analog-digital converter and transmitted to the outside world with universal serial bus (USB) or low voltage differential signaling (LVDS) to reach the need of high-speed scanning, low distortion rate, with depth of focus and transmission convenience.

Description

200906165 321, 322, 323. Reflection mirror 33: Focus lens group 34 · Linear CMOS image sensor (i inear· CMOS image sensor) 8. If there is a chemical formula in this case, please reveal the most Chemical formula showing the characteristics of the invention: (none) IX. Description of the invention: [Technical field to which the invention pertains]

The present invention relates to an optical scanning device for an image system, and more particularly to an optical squeegee module (〇pticai scanning module) constructed by a linear complementary CMOS image sensor. Used in imaging systems such as scanners or multifunction machines. [Prior Art] It is used in an imaging system to apply a light broom and convert it into an electronic signal, such as a scanner, printer, or fax machine. Machines, or integrated photocopying, scanning, printing, and faxing (MPF 'multi-function printers) are the most common; most of these imaging systems have optical scanning modules (〇ptical scanning modules). The mode of action is mainly: a light source is arranged in the scanning module, and the light source can emit light to the picture or text to be scanned or printed, and then the image sensor or image sensor is used. The optical signal corresponding to the pattern is obtained by the reflection of the light ray. The image sensing component used in the optical sniffer module has two main types: one is photoelectric, and the hood is like a sensing component CCD (Charge Coupled Device) ); another: contact image sensing component Cis (Contact Image Sensor); = scanning strictly see 'CCD image sensing components due to long development time, mature technology' can get smaller signal to noise S/N ratio is 200906165 (signa to-noise ratio), so the scanning quality of CCD image sensing components is better than CIS image sensing components; and CIS image sensing components are low cost, light and ultra-thin, suitable for In a more crowded environment, and no need to adjust and heat, so start faster than CCD image sensing components. Referring to FIG. 1 , it is a schematic diagram of a CCD optical scanning module (CCDM) in the prior art, which is a CCD optical scanning module (CCDM, CCD module) formed by a photoelectric coupling component cCD (Charge Coupled Device). The light source 11 is generally used to emit white light by using a cold cathode fluorescent lamp (CCFL, F1 uorescent), and is irradiated to be scanned through a narrow aperture (not shown). On the object 1 , the reflected light can be focused and imaged on the CCD image sensing element 16 via the reflective lens 12 and the focusing lens 13 . The CCD image sensing element 16 is a type of semiconductor 1C element, which is fabricated by a semiconductor process, and its resolution is less affected by the process, so that high, medium, and low resolution sensing elements can be formed as needed. Since the length of the CCD image sensing element 16 is much shorter than the width of the object 10 to be scanned (such as a document or a picture), the image must be reduced by using the reflecting lens 12 and the focusing lens 13 during scanning to be completely scanned. After the reflected light is reflected by the A4 size object to be scanned, the focal length (F〇cus Length) of the reflective lens 12 J and the focusing lens 13 to the CCD image sensing element 16 is about 1 meter, although the depth of field d〇F (depth of focus) can scan a little wrinkled paper, but relatively makes the CCDM 1 larger; and because the CCD image sensing element 16 is smaller than the object to be bounced 1, the object to be scanned needs to be scanned. 10 relative position focusing on the CCD image sensing element 16' increases the necessity of adjustment in assembly; but the CCD image sensing element 16 can accept a low noise ratio s/N, so the color is rich, such as JP2006-067504 , US2004/263915, etc. are disclosed. The CCD image sensing component 16 has an array of cCD (array CCD) and a linear CCD (linear CCD). The main problem of the optical scanning module CCDM using the CCD image sensing component 16 200906165 is that the CCD image is sensed. The measuring component 16 requires additional electronic components to convert the analog signal converted by the CCD image sensing component 16 into a digital signal for transmission to the outside world. This is called the back end function of image capturing; the rear end of the image capturing The components required for the function are shown in Figure 3. If low voltage differential (LVDS, Low Voltage)

Differential Signaling) is transmitted to the outside world. The a/D analog-to-digital converter/transmitter 15 includes: a sequencer 14, an emitter (Emitter) 153, an A/D conversion unit 151, and an LVDS transmission unit 152; CCD image sensing The electronic signal generated by the element 16 is controlled by the timing device μ to emit an analog signal via the transmitter 153, and the A/D conversion unit 151 converts the analog signal into a digital signal, and the LVDS transmission unit 152 sets the digital signal to The signal of the LVDS digital format is transmitted to the outside through the connector 161. Since the CCD image sensing component 16 cannot be integrated with the components of the image processing back end, the complexity and reliability are reduced, and the cost is relatively increased. It is hindered in development.

Referring to FIG. 2, it is a schematic structural diagram of a CIS optical scanning module (CISM) in the prior art, which is a CIS optical scanning mode (CISM) composed of a contact image sensor cIS (contact image sensor). , CIS module) 2, the light source 21 is mostly a light source (light source) formed by a light source (Hnear light source), the LED linear light source 21 is directly bonded to the LED wafer in a long strip printing On the circuit board, the LED chip: after being refracted through a light guide (not shown), a linear light source with a uniform shape to ensure that the light can be distributed and emitted to the cat to be scanned, and the light is scanned. After the object 2 is reflected, it is first imaged through the rod lens 22 and then imaged on the CIS image sensing element 23, and the CIS image sensing element 23 can convert the scanned light into electricity via the applied sequencer 24 and A/. The D-class digital-to-digital conversion/transfer piano digital format is transmitted to the outside world, and an electronic digital signal corresponding to the image to be scanned and 200906165 is obtained, and the text is colored or black and white. As shown in FIG. 4, an array CSIM (Array CSIM) is taken as an example. If the analog-to-digital conversion/transporter 25 is to be transmitted to the boundary in a low-voltage differential (LVDS) digital format, the image captures the components at the back end. Including: a sequencer 24, a horizontal decoding unit 232, a vertical decoding unit 233, an A/D conversion unit 251, and an LVDSJ dedicated unit 253; the timing signal generated by the sequencer 24 drives the horizontal decoding unit 232 to level the CIS image sensing element 23. The electronic signal is converted to a signal of the ^3 digital format via the A/D conversion unit 251 and the transmission unit 253 to the outside; at the next timing, the timing signal generated by the sequencer 24 drives the vertical decoding unit 233 to be vertical. The electronic signal is converted to a signal of the LVDS digit format via the A/D conversion unit 251 and the LVDS transmission unit 253, and is transmitted to the outside; as disclosed in US2005/0145701, US 7,166,827, US 2003/0076552, US 2007/0035785, US 6, 827, 269, etc. . In optical considerations, since the lenticular lens 22 is composed of a row of small-diameter gradient index lenticular lenses (radius gradient in (|ex lens)', the refractive index of each lens gradually increases in the radial direction. The lenticular lens 22 has a function of imaging. The entire lenticular lens 22 can image the picture or text of the object to be scanned 20 in a 1:1 ratio to the CIS image sensing element 23', that is, the CIS image sense. The length of the measuring element 23 must be the same length as the object to be scanned 20; in addition, the advantage of the imaging of the lenticular lens 22 is that the optical path is short, but the disadvantage is that the depth of field is small, so when scanning, the object to be scanned (such as a picture or a text object) ) must be attached to the specific plane of the scanner, and also requires that the object to be scanned must be relatively flat, that is, when there is unevenness on the object to be scanned (such as when the surface of the picture or text object has unevenness), then the concave The imaging will form a black part, which is relatively more difficult to develop into a scanning three-dimensional object; therefore, such as CN200620175613 develops a lens used by CCDM or CSIM, such as US6, 111, 244 to develop a long depth of field image scanning device, using lenses and mirrors In combination, the scanning light can be imaged on the CIS image sensing element 23'200906165 to have a good depth of field. On the other hand, the 'CIS image sensing element 23 can be complementary CMOS (Complementary Metal-Oxide- Semiconductor) logic Process manufacturing' has an array CMOS image sensor (or CMOS image sensor or CMOS image sensor) and a linear CMOS image sensor. The array CMOS image sensing component is generally applied to a mobile phone camera module, which is different from the image optical scanning module of the present invention; and such as US2007/0024926, US2007/0045510 and 〇TW00490977 'exposing the use of array CMOS image sensing components for images A device for image sensing components is disclosed in US Patent Application Publication No. 7,113,215, US 2005/0145701, and US 2003/0146994, but analog digital converters and transmitters are still added to electronic signal transmission; US 2002/0096623 discloses linear CMOS Image sensing component device; US2002/0096625 discloses a method for transmitting data by a linear CMOS image sensing component The linear CMOS image sensing element can realize the sensing of the image. Since the linear CMOS image sensing element is linear, there is only one column of photosensitive elements, so that its operation speed is faster than the array CMOS image sensing C; In addition, the low energy consumption of the linear CMOS image sensing component can effectively reduce the power burden of the portable electronic product; therefore, the development can solve the problem of reducing power consumption, high speed, and convenient transmission of electronic signals to the outside world. The scanning module' is an urgent need. Furthermore, for the use of MFPs, the scanned electronic signals can be easily and quickly transferred to other uses, and the linear CM〇s image sensing components can be used with the image capture backend functions, such as ADC ( Class conversion), DSP (digital signal processor), decoding (Enc〇der), interface (Interface) integrated into a single chip (s〇c, systein 〇n chip), help to solve the transmission interface integration and transmission convenience Therefore, it is necessary to develop a transmission method that can be easily and highly reliable and can be combined with a linear CMOS image sensing element, and is also a problem that needs to be broken. SUMMARY OF THE INVENTION The conventional technology has the problems of low reliability and high cost in the scanning information transmission in the linear CCDM. In CISM, even the CMOS image sensing element has the disadvantages and limitations of small depth of field and low S/N ratio. And the transmission still has the inconvenience of adding an analog digital converter and a transmitter; therefore, the main object of the present invention is to provide a linear complementary CMOS image (Optical Scanning Module with Linear CMOS Image). 〇Sensor) (hereinafter referred to as linear CMOSM), comprising: a light source capable of emitting scanning light, a reflecting lens group, a focusing lens group, and a CMOS image sensing element and including at least one linear complementary gold An oxygen semiconductor (CMOS) image sensor unit, wherein the light source can be a cold cathode fluorescent lamp (CCFL, Fluorescent) or a xenon (Xe) gas tube or a direct type light emitting diode (LED). Any light source, the light source emits light and then illuminates the object to be scanned, and the object to be bounce reflects the light to become the scanning light', and then gathers through the reflecting lens group and the focusing lens group. The linear CMOS image sensing element is incident on the linear CMOS image sensing element and converted into an electronic signal, and the analog/digital conversion function of the linear CMOS image sensing unit is transmitted by a universal bus (USB) or low voltage differential (LVDS) signal. To the outside world, to achieve high-speed sweeping cat, low distortion rate, depth of field and convenient transmission. a ' * + linear complementary metal oxide semiconductor (CM〇s) image optical scanning cat module disclosed in the present invention (Optical Sc Xinjiang ing Module with Linear CMOS Image

Sensor) (hereinafter referred to as linear CM0SM), mainly consists of: a light source that emits a cat's light, a reflection mirror group, a focusing lens group (f〇cus lens grοιιρ), and A linear CMOS image sensing component (丨inear CM〇s丨 状 sensor), wherein the linear CM 〇 image sensing component at least 200906165

A linear complementary CMOS image sensor unit is included; the reflective lens group and the focusing lens group can be arranged according to the optical path and the focusing effect of the focusing lens group by the reflection of the reflecting lens group The linear CMOS image sensing component originally designed for 1:1 can be effectively reduced in length and the DOF (depth of focus) is increased to improve the recognition degree of the scanning ray by the linear CMOS image sensing component; The linear CMOS image sensing component can be integrated with a linear CMOS image sensing unit and other electronic signal transmission and conversion function circuits to form a single chip system (S0C 'System 〇na Chip), that is, to make linear CMOS image sensing early and Other related units such as a timing generation unit, an A/D analog-to-digital signal conversion unit, and an LVDS transmission unit or a USB transmission unit or an AD transmission unit are integrated in On a semiconductor wafer, the linear CM s image sensing element has analog digital conversion at the same time. g Digital

Converter) or Universal Bus (USB) transmission or low voltage differential interface (LVDS); thereby, the linear CM0SM of the present invention achieves the need for fast broom, low distortion and convenient transmission. [Embodiment] Referring to FIG. 5, the linear complementary MOS semiconductor optical imaging module (Optical Scanning Module with Ϊ inpar (IIDS Image Sensor) (hereinafter referred to as linear CMOS M) 3 The main method comprises: a light source 31, which emits light 311 (Li ght) and is directed to the cat object to be scanned. If it is used for scanning purposes, it basically emits white light but is not limited to white light; 311 is irradiated to the object to be scanned 3〇I and reflected as a scanned light 312 (reflected scanning light); - a reflection mirror group 32, which is represented by one or several reflective mirrors The reflection reflection 32 32 322, 323 is formed, so that the object to be scanned 3 〇 reflection 1 sweep 200906165 sight ray 312 travels according to the predetermined optical path and is directed to the subsequent focusing lens group 33; Group 33, consisting of one or several lenses, for focusing the scanning ray 312 emitted by the reflecting lens group 32; a linear CMOS image sensor unit 34, thereby The focusing light of the focusing lens group 33 is converted into an electronic signal, and the electronic signal is converted into a digital format for transmission to the outside world; thereby reducing the volume of the optical scanning module, improving the resolution, and reducing the distortion rate (Optical Distortion) The purpose of the present invention is as shown in FIG. 6, FIG. 7 or FIG. 8. Since the linear CMOS image sensor 34 can be designed as a single wafer, the linear CMOS image sensing element (1 i) The CMOS i mage sensor 34 further includes a linear CMOS image sensor unit 341, a timing generator unit 342, and an A/D analog digital signal conversion unit (A/). D analog-digital converter) 343, and an LVDS (low-voltage differential) conversion unit (LVDS transmission unit) 344 (shown in Figure 6) or a USB (universal serial bus) conversion transmission unit (USB transmission unit) 345 (shown in Figure 7) or A/D (A/D transmission unit) 346 (shown in Figure 8); wherein the linear CMOS image sensing unit 341, for converting the imaged scanning light 312 into an electronic signal; the timing generating unit 342 is configured to generate timing to control the linear CMOS image sensing component 341 for sampling; and the A/D analog digital signal converting unit 343 is configured to sample the sampling The subsequent electronic signals are converted into digital signals; and different types of conversion transmission units, such as LVDS conversion transmission unit 344 (shown in Figure 6) or USB conversion transmission unit 345 (shown in Figure 7) or A/D conversion transmission unit 346 (shown in FIG. 8), for converting the digital signal into a digital format for transmission to the outside; and the linear CMOS image sensing component 34 is formed by a single chip (S0C), thereby achieving cost reduction and volume reduction. The highly manufacturable and highly reliable effect of the 200906165, whereby the object to be scanned is stored, printed or projected to restore the signal of the cat to be scanned, which may be <first embodiment: > original. Referring to Figure 5, 1 gland CM0SM) 3 is applied to a 'file scan ^ ^ ^ optical scanning module (linear size of the file, set n 3 « for an A4 Ming linear CM0SM 3, the main package. Second knowledge The lighter 311 (light) is disposed in the aiming machine and is irradiated to the temple sweep; the sight object 30 can be emitted as the scanning light 312 (2 30 •, via the to-be-scanned 32, the reflective lens group 32 is blocked by the first "Piece ^1' is composed of the third mirror 323 in this embodiment; the sweeping line 31^two mirror 322 is irradiated to the mirror 321 , and the first mirror 321 is irradiated to the first anti-J shot, the first The second mirror 322 will use the ==^ third mirror 323 to make the sweeping light 31 = by the arrangement of the reflecting lens group 32, and the first path is advanced, and the inner traveling is performed, thereby reducing the light of the present invention. Sweep the volume of the space in a limited space; sweep the cat light through the 3 G path and then illuminate the focusing lens group 33: Two or several optical lenses are composed of 1 to cause different magnifications. In this embodiment, two pieces of optics are used. The lens is composed of two glass lenses and a piece of plastic knee lens combined into a focusing lens group 33, designed to reflect at a resolution of 600 dpi. The group 32 focuses the buff ray 312 at an eight-fold to ten-fold rate; since the focusing lens group 33 can shorten the scanning ray 312 by correcting the aberration and imaging the linear CMOS image sensing element 34; The length of the image can be less than the width of the A4 file without degrading the resolution; and the linear CMOS image sensing element 34 can convert the imaged scanned light 312 into an electrical signal.

Referring to FIG. 6, the linear CMOS image sensor 34 is composed of a linear CMOS image sensor unit 341, a timing generating unit 342, and an A/D analog digital signal. The conversion unit 343 and an LVDS conversion transmission unit 344 are configured; the timing generation unit 342 is configured to generate timing to control the linear CMOS image sensing unit 341 to perform sampling; in different applications, the timing generation unit 342 can be externally input. The timing is replaced, that is, the timing of the external input is used to control the linear CMOS image sensing unit 341 for sampling; the A/D analog digital signal conversion unit 343 converts the sampled electronic signal into a digital signal; the LVDS conversion transmission unit 344 can Converting the 'digital signal into LVDS digit format and transmitting it to the outside world; linear CMOS image sensing, component 34 can be composed of a single chip, thereby linear CM 〇s image measuring unit 34 timing generating unit 342, A/D analog digital The signal conversion unit 343 and the LVDS conversion transmission unit 344 are integrated on one semiconductor wafer to form a single wafer (S0C). Referring to FIG. 9, CLK is a timing signal generated by the timing generating unit 342, GBST is an overall start driving signal (G1〇bal start pulse), and SO is a scanning end driving signal (j; nd 〇f Scan puise), ν〇 Υτ analog image output voltage (Analog Vide0 output v〇ltage) U signal, in this embodiment, using ΛΜΙ Semiconductor, S produces σ PI6050D, which is a 600 dpi resolution linear CM 〇 s image sensing unit ^ For example, The sequence generation unit 342 generates the timing (or external ^^ day number) at the 55th timing, and initiates image sensing, which is equivalent to 11 inactive pixels; 172 timings after the activation are performed, This is equivalent to 344 active pixels (active pixei); that is, two pixels are generated in one timing time.

For other applications, as shown in FIG. 7, the LVDS conversion transmission unit 344 can be replaced with the USB conversion transmission unit 345, and the USB conversion transmission unit 345 can convert the digital signal into a USB digital format and transmit 12 200906165. To the outside; or as shown in FIG. 8, the LVDs conversion transmission unit 344 can be replaced with the A/D conversion transmission unit 346, and the A/D conversion transmission unit 346 can convert the digital signal into an a/D digit. The format benefits are transmitted to the outside world. In this embodiment, since the focusing lens group 33 is composed of three lenses, the first lens may be an aspherical glass lens, the second lens may be a spherical glass lens, and the third lens may be a spherical plastic lens. Forming a focal length ratio of about eight times magnification, so that the scanning light of the original 丨: 丨 can be reduced in width by the reflecting lens group 32 and the focusing lens group 33, and a smaller linear CMOS image sensing unit 341 can be used; In the example, the scanning object is an A4 大小 size file whose width is 297 mm. If the conventional CISM is used, the length of the CIS image sensing element is at least 297 mm; if there are two reflective lenses The length of the linear CM s image sensing unit 341 can be reduced to less than 60 mm by the focusing lens group 33 composed of the reflecting lens group 32 and the three focusing lenses, thereby effectively reducing the present invention. The length of the linear CMOS image sensing unit 341 in the linear CMOS image sensing element 34, and the optical path is refracted by using a plurality of reflecting lenses of the reflecting lens group 3 to effectively reduce the volume of the optical scanning module' This is one of the effects of the present invention. When the object to be scanned 30 is a reflective object, the scanning light 311 is reflected on the object to be scanned and reflected into the illuminating light 312. After being reflected by the reflecting lens group 32, the optical light is present on the left and right sides. The position difference, if the optical lens of the focusing lens group 33 can be composed of a short lens focal length (sh〇rt back focal length), the optical aberration can be corrected to become a scan close to the object to be scanned. The aiming can improve the resolution of the scanning, which is another effect of the invention. In this embodiment, the linear CMOS image sensing unit 341 can be fabricated by a process such as CMOS logic or DRAM, which is composed of a plurality of photodiodes, and the female photodiodes can receive light and turn into electronic signals, which can be called Picture 13 200906165

Oixel), the more the photodiode is in a single area, the higher the quality of the element; since the photodiode is subjected to the light intensity and sends out an electronic signal, the intensity or brightness of the incoming light directly affects the identification of the sent electronic signal. The degree, that is, the quality of the '3', when the aberration of the scanning $ray 312 injected into the linear CMOS image sensing unit 341 is small, the deviation of the reflected electronic signal is small, that is, the resolution of the pixel (res〇luti〇n) The present invention utilizes a focusing lens stage 33 that is combined with a linear CMOS image sensing element 34 to focus the scanning light 312 on the linear CMOS image sensing element 34 for imaging. Poor distortion, and loss of resolution 'can improve the conventional technique." The use of CIS image sensing elements has the disadvantages of small depth of field and low resolution, which is another effect of the present invention. In the present embodiment, the linear CMOS image sensing element 34 can be a linear CMOS image sensing unit 341, a timing generating unit 342, an A/D analog g bit signal converting unit 343, and a conversion transmitting unit (344, 345, or 346). Integrated into a single chip (S〇C, System on Chip) package, which can improve the reliability and cost of the unit, and easily transmit the electronic signals of the scan in digital form in LVDS, USB or A/D digital format. Used to other devices, this is another effect of the present invention. ^ Second Embodiment> Referring to FIG. 10, the optical scanning module (linear CM0SM) of the present invention can further replace the § 聚焦 focus lens group 33 with an AF lens = (AFzoominglens) 35 and an AF. The control unit 351 is configured to automatically adjust the focus point of the AF lens (AF 0 ming lens) 35 by using the AF control unit 351, thereby improving the linear CM 〇 SM 3 using the convenience, and avoiding the object to be scanned. The surface of 3〇 (one solid object _ as shown) is uneven and distorted. The autofocus lens group 35 includes at least one lens group, wherein at least one lens group is movable, and the movement of the lens group is controlled via the AF 兀 351 (AF Controller), which is generated by the relative movement between the lens groups of 200906165 The pitch is varied to focus 312 on the focus point and image on the linear CMOS image. The autofocus lens set used in the present invention can be designed such that the first lens group has a negative refractive power and includes two negative refractive rays into a first lens group; the second lens group is positive refractive power, including two brothers. Piece

The sheet is configured to form a second lens group; the scanning light 312 is adjusted in focus by the distance of the second lens group to be optimally imaged on the image sensing unit 341, thereby arranging the scanable stereoscopic object gOS Ο Ο When scanning an uneven document or a stereoscopic object to be scanned 311 is irradiated on the surface of the object to be scanned at different distances, the anti-snag, the light is different, and the scanning light 312 is reflected by the reflection lens group 32=position, sex CMOS The position of the image sensing unit 341 is generated by the AF zooming lens 35. The AF and the two-one 351 can be used to control the position of the different brooms. Point, and still can be imaged by the linear CMOS image sensing unit, which is an applicable effect of the present invention. *Conformation <Third Embodiment> The light source 31 used in the linear CM0SM 3 of the present invention is not Will be like = firefly or light source?? Limit 'the light source, 31 can choose to use ίΐ ΐί ί: or 氙 (Xe) gas light or direct type led in the light source 'this is another effect that can be applied in the invention. Cold cathode glory When the light pipe (CCFL) is the light source 31, the light f 31 includes a CCF. L lamp and a narrow aperture, the length of the light source 31 can be set to scan the width of the object to be scanned; the aFL tube is a mercury discharge lamp, =^ this: = 'the structure is in the tube The inside is coated with a glory agent that emits white light, and is stored with an inert gas and a nucleus. When the lamp f current, the mercury component is excited by the electron to generate ultraviolet rays, and the fluorescent agent absorbs the ultraviolet ray, that is, 15 200906165 Self-lighting

The light passes through to form a thin strip ^ ah _) can make the aFL emit the width of the aim; the light is irradiated; the pile ^ line, the light is the scan of the object to be scanned through the reflective lens assembly ^ reflected as _ light, then the image sense component 34 conversion focus, and then by linear (10) S - 氙 source 31, the source 31 is packaged ϋ X (Xe) gas lamp is often mixed with the width of the field (SCanni ton width); filling inert gas, 1 ; Xe : NF3 =1GG : 2 : 1 is filled with 500w, the efficiency is higher; 5 (10) pulses, that is, the average power can reach the light emitted by the gas lamp, the 氤 (Xe) can be scanned for g = J = f thin strip of light, which is then reflected by the condensed condensed light to be the visible light, and then replaced by the reflective lens group 32 i. Then by the linear (10) S image sensing element 34 when the LED is selected as the light source 31 The light source 31 can be a linear type immediately below. The linear linear LED linearly directly bonds one or several lED wafers at an equal interval to an elongated printed circuit board. The LED chip is directly powered by electric energy. The principle of conversion to light energy, applying voltage to the positive and negative terminals of the semiconductor, when the current is passed When the electrons are combined with the holes, the remaining energy is released in the form of light; when the light is emitted through the LED linear illuminator, it can be shot down (or a certain orientation) to the object to be scanned, after being scanned. The aiming object is reflected as a scanning light, and then focused by the reflecting lens group 32 and the focusing lens group 33 to be converted into an electronic signal by the linear CMOS image sensing element 34. The present invention uses a linear CMOS system composed of a linear CMOS image sensing element and an optical element. Compared with the conventional CCDM or CISM, at least the following advantages can be achieved: 200906165 <1>, the linear CM0SM of the present invention is compared with the conventional CISM, Linear CM0SM has the advantages of reduced cost, small size, high resolution, low distortion, high productivity, and reliability (scanning advantage.) <2>, linear CM of the present invention Compared with the conventional CISM, the linear CM0SM has the advantages of higher electronic signal transmission, and can flexibly use different light sources, that is, the choice of using the light source is not limited. <3>, the linear CM0SM of the present invention It is known to provide a CISM comparison of a cylindrical lens (r〇d I lens). Since the conventional CISMi scanning light is reflected by the scanning object, it passes through a cylindrical lens and then senses the CIS image. On the component (as shown in FIG. 2), the conventional CISM does not have the depth of field (df) efficiency due to the lenticular lens, which affects the efficiency of the conventional CISM, and the linear cm〇 of the present invention. Sm has depth of field (DOF) efficiency. =4> In the conventional CSIM, when using a linear LED as a light source, a light guide must be used to illuminate the light emitted by the LED chip through the light guide plate to form an illuminance. A uniform linear light source ensures that the diaphragm J can be evenly distributed to the object to be scanned, but the use of the light guide plate will result in a lower LED light source usage, that is, the light will be lowered after passing through the light guide plate. Speed; however, if you want to speed up the scanning speed, the brightness of the LED source must be strengthened (enhance the power of the LED light source), but it is relatively easy to heat, causing the use of the conventional CSIM; and the linear cM〇SM of the present invention can be used by The optical design of the middle reflecting lens group and the focusing lens group is to fully utilize the light and image on the linear CMOS image sensing element, so that the light guide plate in the CISM can be omitted, the light source utilization rate is further improved, and the scanning speed is improved. The above description is only a preferred embodiment of the present invention, and only 17 200906165 is illustrative and not limiting for the present invention; those skilled in the art understand that the rights of the present invention Many changes, modifications, and even equivalents may be made in the spirit and scope of the invention, which are intended to fall within the scope of the present invention. [FIG. 1 is a schematic diagram of a prior art CCDM. 2 is a schematic diagram of a prior art CISM. Figure 3 is a functional block diagram of a prior art CCDM. Figure 4 is a functional block diagram of a prior art CISM. Figure 5 is a schematic diagram of an embodiment of the present invention. Figure 6 is a functional block diagram of an embodiment of the present invention using LVDS transmission. Figure 7 is a functional block diagram of a USB transmission using an embodiment of the present invention. Figure 8 is a functional block diagram of an embodiment of the present invention using ad transmission. Figure 9 is a timing diagram of an embodiment of the present invention. Figure 10 is a schematic illustration of a second embodiment of the present invention. [Main component symbol description] 3 : Optical scanning module (linear CM0SM) 31 : Light source Q 311 : Light 312 : Scanning light 32 : Reflective lens group (refiecti〇n mirror Group) 321, 322, 323: reflection mirror 33: focus lens group (focus iens gr0Up) 331, 332, 333: optical lens (focus lens) 34: linear CMOS image sensing element (1 inear CMOS image sensor 341 : Linear CMOS image sensor unit 342 : Timing generator unit 343 : A/D analog digital signal conversion unit (A/D analog-digital 200906165

Converter) 344 : LVDS transmission unit 345 : USB transmission unit 346 : AD transmission unit 35 : AF zooming lens 351 : AF control unit (AF controller) 19

Claims (1)

200906165 X. Patent application scope: 1. A linear complementary metal oxide semiconductor (CMOS) image optical scanning module, comprising: a light source for emitting light to a scanning object; and a reflecting lens group for to be scanned The scanning light reflected by the aiming object travels according to a predetermined optical path; a focusing lens group for focusing and imaging the reflecting lens group scanning light; a linear CMOS image sensing element for converting the imaged scanning light into The digital signal is transmitted to the outside in a digital format; wherein the reflective lens group further comprises one or a plurality of reflective lenses, wherein the scanning light can be changed by the reflective lens; wherein the focusing lens group further comprises one or more The optical lens can focus the scanning light and correct the aberration of the scanning light; wherein the linear CMOS image sensing component comprises: a linear CMOS image sensing unit, a timing generating unit, and an A/D analog digital signal a conversion unit and a conversion transmission unit, and integrated into a single wafer; wherein the linear CMOS image sensing unit Converting the focused scanning light into an electronic signal; wherein the timing generating unit can generate a timing signal to control the linear CMOS image sensing unit; wherein the A/D analog digital signal conversion unit can generate the linear CMOS image sensing unit The electronic signal is converted into a digital signal; wherein the conversion transmission unit can convert the digital signal converted by the A/D analog digital signal conversion unit into a preset transmission format for transmission. 2. A linear complementary CMOS image optical scanning module comprising: a light source for emitting light to a scanning object; 200906165 a reflecting lens group for sweeping an object to be scanned The aiming light travels according to a predetermined optical path; a focusing lens group for focusing and imaging the reflecting lens group scanning light; a linear CMOS image sensing element for converting the imaged scanning light into a digital electronic signal and digitally The reflective lens group further includes one or a plurality of reflective lenses, wherein the scanning light beam can change its optical path through the reflective lens; wherein the focusing lens group further comprises one or more optical lenses, which can be scanned The aiming light focuses and corrects the aberration of the scanning light; wherein the linear CMOS image sensing component comprises: a linear CMOS image sensing unit, an A/D analog digital signal conversion unit and a conversion transmission unit, and is integrated into a single chip; wherein the linear CMOS image sensing unit can accept an externally input timing signal and according to the timing signal Converting the focused scanning light into an electronic signal; wherein the A/D analog digital signal converting unit converts the electronic signal generated by the linear CMOS image sensing unit into a digital signal; wherein the converting transmission unit can compare the A/D ratio The digital signal converted by the digital signal conversion unit is converted into a preset transport format. The optical scanning module according to claim 1 or 2, wherein the light source is a cold cathode fluorescent lamp. The tube (CCFL) is generated and can be directed to the object to be scanned in one orientation. 4. The optical scanning module according to claim 1 or 2, wherein the light source is generated by a xenon (Xe) gas lamp and can be irradiated to the object to be scanned in one orientation. 5. The optical scanning module of claim 1 or 2, wherein the light source is generated by a linear light emitting diode (LED), the linear LED being composed of one or a plurality of LEDs. The light emitted by the linear LED can be directed to the object to be scanned in one orientation. 21 200906165 6. The optical scanning module according to claim 1 or 2, wherein the linear CMOS image sensing component can be in the AD signal transmission format, the LVDS signal transmission format, or the USB signal. Any one or combination of delivery formats. 7. The optical scanning module of claim 1 or 2, wherein the focusing lens group is further comprised of an automatic zoom lens and an AF control unit, wherein the AF control unit is controllable The focal length of the auto-zoom lens, which allows the scanning light of different positions to be adjusted to the same focus point and clearly imaged on the linear CMOS image sensing unit. twenty two