CN2449292Y

CN2449292Y - Image scanner with reflection and penetration type scanning optical path switching lens

Info

Publication number: CN2449292Y
Application number: CN 00257229
Authority: CN
Inventors: 叶建良
Original assignee: Transpacific IP Ltd
Current assignee: Transpacific IP Pte Ltd.
Priority date: 2000-10-11
Filing date: 2000-10-11
Publication date: 2001-09-19
Anticipated expiration: 2010-10-11

Abstract

The utility model relates to an image scanner, which makes lens switching relatively simple, convenient and practical. A transitional module of the utility model comprises a reflective type optical path fixing lens, a penetrating type optical length fixing lens, a first focusing lens, a second focusing lens, an image pick-up module and a rotatable reflecting lens, wherein, the first focusing lens and the second focusing lens are respectively provided with both a light source incident end and a light source outgoing end; the image pick-up module is arranged at the point with a distance from the light source outgoing end of the first focusing lens and the second focusing lens; the rotatable reflecting lens is rotatablely positioned at the first angle or the second angle. The utility model is used for scanning.

Description

Has device of image scanning reflective and penetration scanning light path switching eyeglass

The utility model relates to device of image scanning.

Have the reflection type image scanner now as shown in Figure 1, 2: top board 11 central authorities of its body 1 open a rectangle form, and be embedded with the contribution loading end 12 of a clear glass, to put contribution 10, body 1 end face one side is pivoted a loam cake 13 as reticle plate, during operation, loam cake 13 covers on the contribution loading end 12 of contribution 10.Divide a word with a hyphen at the end of a line in the body module 14 and guide rod 15a, 15b, the module 14 of dividing a word with a hyphen at the end of a line has a bottom light source 16, several reflecting optics 171,172,173,174, one amasthenic lens 18 and an image capture module 19.Divide a word with a hyphen at the end of a line module 14 under a control circuit and drive mechanism,, scan along guide rod 15a, 15b displacement.Existing penetration image scanner is shown in Fig. 3,4: it has a body 2, a top board 21, a contribution loading end 22, the body 2 end faces one side module 23 backlight that is pivoted, and it comprises back light 26.Divide a word with a hyphen at the end of a line in the body module 24,

guide rod

25a, 25b, the module 24 of dividing a word with a hyphen at the end of a line has reflecting optics 271,272,273, an amasthenic lens 28 and an image capture module 29.The module 24 of dividing a word with a hyphen at the end of a line is driven along

guide rod

25a, 25b displacement, and cooperates the light source of back light 26, scans.This image scanner only can be single reflective or penetration scanning, can't switch.Though No. 391604 patent has designed handoff functionality, complex structure, it disposes an anti-dazzling screen in amasthenic lens the place ahead, and anti-dazzling screen is switched by switching mechanism again, during reflective scanning mode, the amasthenic lens in the penetration light path is covered; Penetration when scanning, the amasthenic lens in the reflective light path is covered complex structure and impracticable.

The purpose of this utility model provides that having of the comparatively simple and convenient practicality of a kind of switching is reflective switches the device of image scanning of eyeglass with penetration scanning light path.

The purpose of this utility model is achieved in that to have device of image scanning reflective and penetration scanning light path switching eyeglass, dispose the module of dividing a word with a hyphen at the end of a line in it, it is characterized in that: this module of dividing a word with a hyphen at the end of a line cooperates a bottom light source or cooperates a back light, and the module of dividing a word with a hyphen at the end of a line contains first and second condenser lens, but an image capture module and a turn reflecting optics; First and second condenser lens all has a light source incident end and a light source exit end respectively; The light source exit end that the image capture module is arranged in first and second condenser lens has a distance, is positioned at first angle or in second angle but the turn reflecting optics is rotatable; Also contain reflective light path fixing len, but and with the common reflective light path that forms of first condenser lens and turn reflecting optics; But also contain penetration light path fixing len and form a penetration light path jointly with second condenser lens and turn reflex reflector lens.

Above-mentioned design, bottom light source is to carry out image scan to a reflective contribution that is seated on the device of image scanning; Back light is to carry out image scan to a penetration contribution.When carrying out reflective contribution when sweeping original text, but the turn reflecting optics is positioned at first angle, so that but the optical path that bottom light source produces reflective contribution reflection to be scanned projects the turn reflecting optics, project the light source incident end of first amasthenic lens again by the reflection of reflective light path fixing len, by the light source exit end of first condenser lens signal of video signal of reflective contribution is projected the image capture module then; And when carrying out the scanning of penetration contribution, but the turn reflex reflector lens is positioned at second angle, so that but the light that back light produces is projected to the turn reflecting optics via penetration contribution to be scanned, be projected to the light source incident end of second condenser lens again by the reflection of penetration light path fixing len, by the light source exit end of second condenser lens signal of video signal of penetration contribution is projected the image capture module then, reach and switch fairly simple convenient and practical effect.

Explain again below by accompanying drawing, embodiment:

Fig. 1 has reflection type image scanister stereo appearance figure now;

Fig. 2 has reflection type image scanister light path synoptic diagram now;

Fig. 3 has penetration device of image scanning stereo appearance figure now;

Fig. 4 has penetration device of image scanning light path synoptic diagram now;

The divide a word with a hyphen at the end of a line internals configuration schematic diagram of module of Fig. 5 the utility model;

Light path synoptic diagram during Fig. 6 the utility model scanning reflection formula contribution;

Light path synoptic diagram during Fig. 7 the utility model scanning penetration contribution;

But the stereographic map that Fig. 8 the utility model turn reflecting optics combines with rotating driving device.

Shown in Fig. 5-7: dispose the module 3 of dividing a word with a hyphen at the end of a line in the utility model, it is characterized in that: this module 3 of dividing a word with a hyphen at the end of a line cooperates a bottom light source 30 or cooperates a back light 6, and the module 3 of dividing a word with a hyphen at the end of a line contains first and

second condenser lens

32,33, but an image capture module 31 and a turn reflecting optics 8; First and

second condenser lens

32,33 all has a light

source incident end

32a, 33a and a light

source exit end

32b, 33b respectively; Light

source exit end

32b, 33b that image capture module 31 is arranged in first and

second condenser lens

32,33 have a distance, are positioned at first angle or in second angle but turn reflecting optics 8 is rotatable; Also contain reflective light

path fixing len

71,72, but and with first poly-lens 32 and the turn reflecting optics 8 common reflective light paths that form of stopping; But also contain penetration light

path fixing len

73,74 and form penetration light paths jointly with second condenser lens 33 and turn reflex reflector lens 8.Dividing a word with a hyphen at the end of a line module 3 can be along the guide rod of two parallel configurations and divide a word with a hyphen at the end of a line below contribution loading end 4, bearing one waits to sweep contribution 5 on the contribution loading end, back light 6 is configured in module internal backlight, like this, bottom light source 30 is to carry out image scan to a reflective contribution 5a who is seated on the device of image scanning; Back light 6 is to carry out image scan to a penetration contribution 5b.When carrying out reflective contribution 5a scanning, but turn reflecting optics 8 is positioned at first angle, so that but the optical path that bottom light source 30 produces reflective contribution 5a reflection to be scanned projects turn reflecting optics 8, project the light source incident end 32a of first condenser lens 32 again by the reflection of reflective light

path fixing len

71,72, by the light source exit end 32b of first condenser lens 32 signal of video signal of reflective contribution 5a is projected image capture module 31 then; And when carrying out the scanning of penetration contribution, but turn reflex reflector lens 8 is positioned at second angle, so that but the light that back light 6 produces is projected to turn reflecting optics 8 via penetration contribution 5b to be scanned, be projected to the light source incident end 33a of second condenser lens 33 again by the reflection of penetration light

path fixing len

73,74, signal of video signal by the light source exit end penetration contribution 5b of second condenser lens 33 projects image capture module 31 then, reaches to switch fairly simple convenient and practical effect.Wherein, include a charge-coupled device (CCD) (CCD) in this image capture module 31.

Shown in Fig. 7,8: wherein, but should combine by a transmission shaft 80 with a turn drive unit 81 by turn reflecting optics 8, be rotation center with transmission shaft 80, and can be positioned on first or second angle, rotating driving device 81 is furnished with

position detecting switch

91,92, the angle of control positioning of rotating; Wherein, this rotating driving device 81 is a step motor.Wherein, but should turn reflecting optics 8 be positioned at corresponding to back light 6 belows; Wherein, this first condenser lens 32 is the condenser lens with different Optical Resolutions with second condenser lens 33, so that when scanning, can obtain required different resolutions.

Claims

1, has device of image scanning reflective and penetration scanning light path switching eyeglass, dispose the module of dividing a word with a hyphen at the end of a line in it, it is characterized in that: this module of dividing a word with a hyphen at the end of a line cooperates a bottom light source or cooperates a back light, and the module of dividing a word with a hyphen at the end of a line contains first and second condenser lens, but an image capture module and a turn reflecting optics; First and second condenser lens all has a light source incident end and a light source exit end respectively; The light source exit end that the image capture module is arranged in first and second condenser lens has a distance, is positioned at first angle or in second angle but the turn reflecting optics is rotatable; Also contain reflective light path fixing len, but and with the common reflective light path that forms of first condenser lens and turn reflecting optics; But also contain penetration light path fixing len and form a penetration light path jointly with second condenser lens and turn reflex reflector lens.

2, device of image scanning as claimed in claim 1 is characterized in that: wherein, include a charge-coupled device (CCD) in this image capture module.

3, device of image scanning as claimed in claim 1 is characterized in that: wherein, but should be combined by a transmission shaft with a turn drive unit by the turn reflecting optics.

4, device of image scanning as claimed in claim 3 is characterized in that: wherein, this rotating driving device is a step motor.

5, device of image scanning as claimed in claim 1 is characterized in that: wherein, but should be positioned at corresponding to the back light below by the turn reflecting optics.

6, device of image scanning as claimed in claim 1 is characterized in that: wherein, this first condenser lens is the condenser lens with different Optical Resolutions with second condenser lens.