CN1361441A - Manuscript penetrating light source for image scanner - Google Patents

Abstract

The invention discloses a light source for penetrating manuscript for influencing scanner, which is applied to an image scanner and comprises a scanning platform and an image acquisition module, wherein the light source for penetrating manuscript for influencing scanner comprises a shell, a light source, a three-color filter device, a switching mechanism and a transmission mechanism, wherein the shell is placed on the scanning platform, the light source is arranged in the shell, the three-color filter device is arranged on the optical path from the light source to the scanning platform, the switching mechanism is connected with the three-color filter device, and the transmission mechanism is used for driving the light source, the three-color filter device and the switching mechanism to move along with the image acquisition module together so as to complete the scanning action of the color penetrating manuscript.

Description

Be used for the manuscript penetrating light source on the image scanner

The present invention relates to a kind of manuscript penetrating light source, relate in particular to a kind of manuscript penetrating light source that is applied on the image scanner.

Popular gradually along with the continuous progress of manufacturing technology and price, image scanner become PC indispensable peripheral equipment, and along with the increase of the processing speed of PC own and user lifting for the scan-image quality requirements, market for image scanner can provide scanned kind also with increase, for example scan for can and penetrating original text (for example egative film) to reflection original text (for example books) respectively.As shown in Figure 1, be known contact-type image sensing device (the contact image sensor that utilizes, CIS) organigram of flat-bed color image scanners that module is finished, wherein the contact-type image sensing device module 11 under scanning platform 10 is mainly with three primary colors light source (RGB light source) 111, lens pillar (Rod Lens) 12 and 113 formations of sensor wafer (sensor Chip), so can the colour reflective original text on the scanning platform 10 be scanned, and prepare penetrating original text when scanning on the scanning platform 10 as the user, then must install one additional and penetrate original text Mk 12 (Transparency Adapter, TA) provide and penetrate light, but penetrate the original text Mk now and mostly can only provide monochromatic source, therefore can't penetrate original text to colour carries out chromoscan, and how to improve the drawback of above-mentioned located by prior art, for being those skilled in the art's problems anxious to be solved.

The purpose of this invention is to provide a kind of manuscript penetrating light source that is applied on the image scanner, it has has and can penetrate the function that original text carries out chromoscan to colour.

For realizing described purpose, technical scheme provided by the invention is: the manuscript penetrating light source on the image scanner, be applied on the image scanner, this image scanner includes an one scan platform and an image capture module, this manuscript penetrating light source that is applied on the image scanner then comprises: a housing, a light source, one or three look filter disc devices, one switching mechanism and a gear train, described housing can be placed on this scanning platform; Described light source is located in this housing, send scanning with light to this scanning platform; Described three look filter disc devices are located at this light source to the optical path of this scanning platform, make this light source can tell three coloured light; Described switching mechanism is connected in this three looks filter disc device, and this three looks filter disc device of controlled drive switches, and making the light that is sent to this scanning platform is three coloured light a kind of monochromatic light wherein; Described gear train moves with this image capture module simultaneously in order to drive this light source, three look filter disc devices and this switching mechanism, and then finishes the scanning motion that a colour penetrates original text.

Described this light source of manuscript penetrating light source that is used on the image scanner can be a cold cathode fluorescent lamp.

Described this three looks filter disc device of manuscript penetrating light source that is used on the image scanner can be a RGB tricolor filter device.

Described this switching mechanism of manuscript penetrating light source that is used on the image scanner can be an electro-motor (motor), moves in order to drive this three looks filter disc device.

Described this gear train of manuscript penetrating light source that is used on the image scanner is made of an electro-motor and a guide rod.

The described manuscript penetrating light source that is used on the image scanner is used the image scanner on it, and this image capture module system can be a contact-type image sensing device (Contact Image Sensor, CIS) module.

Another kind provided by the invention is applied to the manuscript penetrating light source on the image scanner of being used on the image scanner, be applied to an image scanner on, this image scanner includes an one scan platform and an image capture module, this manuscript penetrating light source that is used on the image scanner then comprises: a housing, one three-color light source, one switching mechanism and a gear train, described housing can be placed on this scanning platform; Described light source is located in this housing, send scanning with light to this scanning platform; Described three-color light source is located in this housing, and the three coloured light lines that send scanning usefulness are to this scanning platform; Described switching mechanism is connected in this three-color light source, controls this three-color light source and switches, and making the light that is sent to this scanning platform is three coloured light a kind of monochromatic light wherein; Described gear train advances mobilely in order to drive this three-color light source and this switching mechanism simultaneously with this image capture module, and then finish the scanning motion that a colour penetrates original text.

This three-color light source system comprises following member in the described manuscript penetrating light source that is applied on the image scanner: three monochromatic fluorescent tubes; And the RCB tricolor filter, corresponding these monochromatic fluorescent tubes and being provided with.

Described this three-color light source of manuscript penetrating light source that is used on the image scanner can be RGB three primary colors cold cathode fluorescent lamp.

Described this three-color light source of manuscript penetrating light source that is used on the image scanner can be RCB three primary colors light emitting diode matrix.

Described this three-color light source of manuscript penetrating light source that is used on the image scanner comprises following member: three leaded light bars; And three diodes, sending the RGB primaries respectively, it is arranged at a side of corresponding leaded light bar respectively.

Described penetrating witheredly can be a controlled single pole multiple throw with this switching mechanism in the light source, lights one in this three-color light source in order to controlled.

Described this gear train system of manuscript penetrating light source that is used on the image scanner is made of a step motor and a guide rod.

The described manuscript penetrating light source that is used on the image scanner is used the image scanner on it, and this image capture module system can be a contact-type image sensing device (Contact Image Sensor, CIS) module.

Provided by the inventionly be applied to the manuscript penetrating light source on the image scanner owing to adopted technical scheme of the present invention, this is used for the manuscript penetrating light source on the image scanner, after RGB tricolor filter device filters, switching mechanism and gear train that electro-motor (motor) drives, this gear train connects this light source, RGB tricolor filter device, this light source, RGB tricolor filter device and this switching mechanism move with this image capture module simultaneously, and switching mechanism is controlled this three looks filter disc device and is switched, make the light that is sent to this scanning platform can be divided into a kind of monochromatic light of one in the primaries in turn, and then finish the scanning motion that a colour penetrates original text, improved the defective that monochromatic light can not be finished chromoscan effectively.

The present invention is described in further detail below in conjunction with drawings and Examples:

Fig. 1 is known contact-type image sensing device (Contact Image Sensor, CIS) organigram of flat-bed color image scanners that module is finished of utilizing.

Fig. 2 is the organigram that is applied to a preferred embodiment of the manuscript penetrating light source on the image scanner provided by the invention.

Fig. 3 is the organigram that is applied to another preferred embodiment of the manuscript penetrating light source on the image scanner provided by the invention.

Fig. 4 is the organigram that is applied to another preferred embodiment of the manuscript penetrating light source on the image scanner provided by the invention.

Fig. 5 is the organigram that is applied to another preferred embodiment of the manuscript penetrating light source on the image scanner provided by the invention.

Embodiment 1: the organigram that is applied to a preferred embodiment of the manuscript penetrating light source on the image scanner provided by the invention as shown in Figure 2, wherein this image scanner 2 includes an one scan platform 20 and an image capture module 21, this 22 of manuscript penetrating light source that are used on the image scanner includes housing 221, the light source 222 that cold cathode fluorescent lamp is finished, RGB tricolor filter device 223, switching mechanism 224 that electro-motor (motor) is driven and the gear train 225 that is constituted by step motor 2251 and guide rod 2252, wherein gear train 225 is in order to drive this light source 222, RGB tricolor filter device 223 moves with this image capture module 21 simultaneously with this switching mechanism 224, and switching mechanism 224 is controlledly to switch in order to drive this three looks filter disc device, make the light that is sent to this scanning platform can be divided into a kind of monochromatic light in the primaries in turn, and then finish the scanning motion that a colour penetrates original text.

Embodiment 2: as Fig. 3 is the organigram that is applied to another preferred embodiment of the manuscript penetrating light source on the image scanner provided by the invention, this image scanner 2 includes an one scan platform 20 and an image capture module 21, this 22 of manuscript penetrating light source that are used on the image scanner includes housing 221, and the gear train 225 that is constituted by step motor 2251 and guide rod 2252, light source 222 is trichromatic cold cathode fluorescent lamp of RGB or trichromatic light emitting diode matrix (LED Array) 31,32,33 form, and switching mechanism 224 is a single pole multiple throw, gear train 225 drives these light source 222 RGB tricolor filter devices 223 and moves with this image capture module 21 simultaneously with this switching mechanism 224, and switching mechanism 224 control trichromatic cold cathode fluorescent lamp of RGB or trichromatic light emitting diode matrixs (LEDArray) 31,32,33 light on and off, and switch, make the light that is sent to this scanning platform can be a kind of monochromatic light in the primaries in turn, and then finish the scanning motion that a colour penetrates original text.

Embodiment 3: the organigram that is applied to another preferred embodiment of the manuscript penetrating light source on the image scanner provided by the invention as shown in Figure 4, it is in light source 222 with embodiment 2 different is with three white cold cathode fluorescent lamp 41,42,43 and RGB tricolor filter 44,45,46 formations that are total to, and switching mechanism 224 is finished for single pole multiple throw, there is no as for other member and embodiment 2 different, so repeat no more.

Embodiment 4: as Fig. 5 is the organigram that is applied to another preferred embodiment of the manuscript penetrating light source on the image scanner provided by the invention, wherein with light source 222 with three leaded light bars (light guide) 51,52,53 and RGB three primary colors light emitting diode 54,55,56 institutes are common to be constituted, RGB three primary colors light emitting diode 54,55,56 are arranged at corresponding leaded light bar 51 respectively, 52, a side of 53 (as its enlarged diagram), and switching mechanism 224 is also finished with a controlled single pole multiple throw, there is no difference as for other member territory second preferred embodiment, repeat no more.

The present invention is provided in the above-described embodiments is used for manuscript penetrating light source on the image scanner, all can send the required primaries of chromoscan respectively, improve effectively and penetrate the defective that the original text Mk only can provide monochromatic source now, finish the chromoscan that penetrates original text for colour, reach fundamental purpose of the present invention.But the technician for this area time technology if only this technology is done detailed modification, still belongs to the protection domain of this patent.

Claims (14)

1. A light source for penetrating manuscripts applied to image scanners, the image scanner includes a scanning platform and an image capture module, characterized in that: the image scanning The light source for penetrating manuscripts on the device includes: a housing, which can be placed on the scanning platform; a light source, which is installed in the housing, and emits scanning light to the scanning platform; a three-color filter device is located on the scanning platform. On the optical path from the light source to the scanning platform, the light source can separate three colored lights; a switching mechanism is connected to the three-color filter device, and is controlled to drive the three-color filter device to switch, so that the three-color light transmitted to the The light of the scanning platform is a monochromatic light among the three colored lights; and a transmission mechanism is used to drive the light source, the three-color filter device and the switching mechanism to move together with the image capture module to complete a color The scanning action of the penetrating manuscript. 2 . The light source for penetrating manuscripts applied to image scanners as claimed in claim 1 , wherein the light source is a cold cathode lamp. 3 . 3. The light source for penetrating manuscripts used in image scanners as claimed in claim 1, wherein the three-color filter device is an RGB primary color filter device. 4. The light source for penetrating manuscripts applied to image scanners as claimed in claim 1, wherein the switching mechanism is an electric motor driving the three-color filter device to move. 5 . The light source for penetrating manuscripts applied to image scanners as claimed in claim 1 , wherein the transmission mechanism is composed of a stepping motor and a guide rod. 6 . 6. The light source for penetrating manuscripts applied to image scanners as claimed in claim 1, wherein the image capture module is a Contact Image Sensor (CIS) module Group. 7. A light source for penetrating manuscripts used on image scanners, applied to an image scanner, the image scanner includes a scanning platform and an image capture module, characterized in that: the image scanner The light source for penetrating manuscripts on the scanner includes: a casing, which can be placed on the scanning platform; a three-color light source, which is installed in the casing, and emits three-color light for scanning to the scanning platform; a switching mechanism , connected to the three-color light source, controlling the three-color light source to switch, so that the light transmitted to the scanning platform is a monochromatic light among the three color lights; and a transmission mechanism, used to drive the three-color light source and the three-color light source The switching mechanism moves together with the image capture module, and then completes the scanning action of one-color transparent draft. 8. The light source for penetrating manuscripts applied to image scanners as claimed in claim 7, characterized in that: the three-color light source system comprises the following components: three monochromatic lamp tubes; and RGB three primary color filters, corresponding to And other monochromatic lamps and set. 9 . The light source for penetrating manuscripts applied to image scanners as claimed in claim 7 , wherein the three-color light sources are cold-cathode lamps of RGB three primary colors. 10 . 10 . The light source for penetrating manuscripts applied to image scanners as claimed in claim 7 , wherein the three-color light source is an array of RGB three-primary-color light-emitting diodes. 11 . 11. The light source for penetrating manuscripts applied to image scanners as claimed in claim 7, wherein the three-color light source system comprises the following components: three light guide strips; and three light-emitting diodes, which respectively emit RGB The three primary colors are respectively arranged on one side of the corresponding light guide strip. 12. The light source for penetrating manuscripts applied to image scanners according to claim 7, characterized in that: the switching mechanism is a controlled single-pole multi-throw switch, which is used to controlly light up one of the three-color light sources one of. 13 . The light source for penetrating manuscripts applied to image scanners as claimed in claim 7 , wherein the transmission mechanism is composed of a stepping motor and a guide rod. 14 . 14. The light source for penetrating manuscripts applied to image scanners according to claim 7, wherein the image capture module is a contact image sensor (Contact Image Sensor, CIS) module Group.

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