CN2556668Y - Scanning head surrounding lens type long optical length and optial path device - Google Patents
Scanning head surrounding lens type long optical length and optial path device Download PDFInfo
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- CN2556668Y CN2556668Y CN02263182.8U CN02263182U CN2556668Y CN 2556668 Y CN2556668 Y CN 2556668Y CN 02263182 U CN02263182 U CN 02263182U CN 2556668 Y CN2556668 Y CN 2556668Y
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- 230000000452 restraining effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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Abstract
The utility model relates to an optical path device with a long path and a scanning head surrounding a camera lens, which comprises an optical head frame (3), a reflector group, a camera lens (4) and a CCD/B and is characterized in that: 1. the reflector group forms four reflection planes, each reflection plane is corresponding to one edge of a rectangular reflection frame and the reflection planes are arranged by presenting an included angle of 45 degrees with a level, furthermore, the reflection planes are inward and form an inner circulating reflection optical path which is centrally convergent; 2. a light entrance port (1) is arranged above the optical path device, and one side of the optical path is provided with a light exit port (2), the camera lens is arranged inside a circulating optical path and at the position of exit rays. The technical proposal uses four reflection planes to form the rectangular reflection frame and is capable of producing one time or a plurality of times of inner circulating reflection. The camera lens is arranged inside the circulating optical path, so as to make use of the space inside the circulating optical path and cause the structure to be more compact and meet optical path designs with different optical length by increasing or reducing the circulating times, more particularly, the effect is extremely obvious for long path devices by adopting the proposal.
Description
Technical field
The utility model relates to a kind of scanner, be particularly related to the light path design problem of scanner head in the scanner, this light path design is suitable for long light path machine or professional machine, can make that prior art becomes simply, practical, compact conformation, helps scanner and realizes microminiaturized and ultra-thinization.
Background technology
Current, the development trend of scanner is light and handyization, ultra-thinization, accomplish structure that how this point to make scanner head in the existing scanner more compactness be crucial.In the known technology, scanner head mainly is made up of bare headed frame (Chasiss), fluorescent tube, camera lens (Lens), photoelectric coupled plate (CCD/B) and some reflecting optics (Mirror) etc.Reflecting optics is arranged on the bare headed frame, and under the certain prerequisite of light path scope, and the light path design by ad-hoc location and angle constitutes reflected light path, thus with image information by lens imaging to photoelectric coupled plate.At present, the light path design of relevant scanner head is varied in the prior art, but concludes to get up quantitatively to adopt the scheme of three catoptrons more at eyeglass, adopts the scheme of five catoptrons also common.Order of reflection from catoptron is generally primary event, but two secondary reflections or triple reflection also occur often.
In order more clearly to introduce known technology in the past, exemplify four kinds of representative light path design schemes below.Example one: see shown in the accompanying drawing 1, be provided with three reflecting optics in this reflected light path, and convert vertical light to horizontal light by the eyeglass primary event, utilize again camera lens with the image information image formation by rays in photoelectric coupled plate.Example two: see shown in the accompanying drawing 2 that be provided with three reflecting optics in this reflected light path, wherein the M1 eyeglass is through two secondary reflections.Example three: see shown in the accompanying drawing 3, be provided with five reflecting optics in this reflected light path, every reflecting optics is through primary event.Example four: see shown in the accompanying drawing 4 that be provided with five reflecting optics in this reflected light path, wherein M2 and M3 eyeglass are through two secondary reflections.Although above-mentioned light path design also can satisfy request for utilization, have following 3 deficiencies usually: 1, the angle value of eyeglass calculates comparatively complicatedly, and angle is wayward during assembling; Although 2, light path is through multiple reflection folding, still need in order to reach the light path requirement, so the scanner head volume is bigger than large space; 3, light path is not capable of circulation, moves towards more in disorder, irregular, designs numerous and diverse.By above analysis as seen, make when running into the design of long optical-path light-path that the scanner head volume is little, compact conformation is unusual difficulty.For this reason, the utility model proposes a kind of light path design scheme that is suitable for long light path, to overcome above-mentioned deficiency from scanner head light path design angle.
Summary of the invention
For achieving the above object, the technical solution adopted in the utility model is: a kind of scanner head is made of bare headed frame, reflector group and camera lens around the long optical-path light-path device of camera lens formula, wherein:
(1), reflector group is made up of four reflecting optics at least, all reflecting optics are divided into the reflecting surface of four kinds of different angles, a limit of every kind of corresponding rectangle reflection box of reflecting surface, and reflecting surface is towards the inboard of rectangle reflection box, reflecting surface and level are 45 ° of angles places, and entad constitutes the reflected light path that circulates in the convergent with this;
(2), above two kinds of reflectings surface between be provided with the light entrance port, between two kinds of reflectings surface of a side, be provided with the beam projecting mouth, camera lens places within the circulation light path, and is positioned on the emergent ray that passes exit portal.
The related content of technique scheme and being explained as follows:
1, described " bare headed frame " is the scanner head pedestal, also claims the scanner head monomer, and English is Chasiss.Described " reflector group " is meant the one group of reflecting optics that is used to constitute reflected light path.
2, described " rectangle reflection box " is meant the reflection configuration of being built by the rectangle frame by the reflecting surface of four kinds of different angles.Described reflecting optics and reflecting surface are in conceptive difference to some extent, reflecting optics is meant certain concrete a slice eyeglass, and reflecting surface is meant the set with same nature reflecting optics, reflecting surface has only four kinds for the rectangle reflection box, can have a slice eyeglass to constitute on wherein a kind of reflecting surface, sees shown in accompanying drawing 6, the accompanying drawing 7, also can there be two eyeglasses to constitute, see that in the accompanying drawing 8, M4 and M5 belong to same reflecting surface, M1 and M6 belong to same reflecting surface.
3, described " reflecting surface is towards the inboard of rectangle reflection box " is meant that all reflectings surface all are positioned on the inner face of rectangle reflection box, forms in twos to arrange face-to-face.
4, described " camera lens places within the circulation light path, and is positioned on the emergent ray that passes exit portal " is meant that camera lens is located at area surrounded, and the position is dropped on the emergent ray.
5, in the technique scheme, the quantity of described reflector group and layout can have following several variation:
(1), reflector group adopts four reflecting optics, every reflecting optics constitutes a kind of reflecting surface.Shown in accompanying drawing 6 and accompanying drawing 7.This version eyeglass number is minimum, and structure is the simplest, and effect is best, is optimum implementation, and other all belongs to the deformation design of this scheme.
(2), reflector group adopts five reflecting optics, five reflecting optics are divided into four kinds of reflectings surface, wherein have a kind of reflecting surface to comprise two reflecting optics that are parallel to each other.Shown in accompanying drawing 11.
(3), reflector group adopts six reflecting optics, six reflecting optics are divided into four kinds of reflectings surface, wherein have two kinds of reflectings surface to comprise two reflecting optics that are parallel to each other respectively.Shown in accompanying drawing 8.
(4), reflector group adopts seven reflecting optics, seven reflecting optics are divided into four kinds of reflectings surface, wherein have three kinds of reflectings surface to comprise two reflecting optics that are parallel to each other respectively.Shown in accompanying drawing 12.
(5), reflector group adopts eight reflecting optics, eight reflecting optics are divided into four kinds of reflectings surface, wherein four kinds of reflectings surface comprise two reflecting optics that are parallel to each other respectively.Shown in accompanying drawing 9.
Quantity about reflector group can continue to increase on eight bases, but the many more manufacturings of eyeglass are loaded down with trivial details, the also corresponding increase of cost, and therefore the practical application possibility more than eight is little.
6, in the technique scheme, the length breadth ratio relation of being inversely proportional to of the cycle index of light path and rectangle reflection box that is to say that length breadth ratio is more and more near 1 cycle index more, otherwise length breadth ratio systemic circulation number of times more is few more, and minimum is once to circulate.Here be that length breadth ratio can not equal 1 with requiring emphasis, otherwise become square reflection box, be infinite loop this moment, and light path is overlapping, can not produce the entad interior circulation reflected light path of convergent, sees that Δ X is not equal to zero (Δ X=0 is square reflection box) in the accompanying drawing 10.Described entad convergence is meant that light enters from the entrance port in the rectangle reflection box through at least once restraining to the exit portal direction after the circulation reflection.
The utility model principle is: adopt the reflecting surface of four kinds of different angles to form circulation reflection box in the rectangle, and utilize that this reflection box once circulates, twice circulation even more times circulation reflection satisfy the light path requirement.Because the circulation reflected light path of rectangle reflection box is for entad restraining form, penetrate the horizontal level that light path is positioned at the circulation center, therefore camera lens can be placed on the emergent ray position in the circulation light path, may effectively utilize the space in the circulation light path like this, make structure do compactly more.
Because the technique scheme utilization, the utility model compared with prior art has following advantage:
1, the utility model utilizes the rectangle reflection box to make the path circulation reflection of light, can once circulate, twice circulation even more times circulation, such circulation light path can satisfy the light path requirement easily by increasing or reducing the light path design that cycle index satisfies different light paths, and calculates simple.
2, the combination of the utility model circulation light path and lens construction, it is little to take up room, and compact conformation, helps reducing the scanner head volume, especially very outstanding to effect behind long light path machine or some professional machine employing this programme.
3, the utility model places camera lens within the circulation light path, makes the utilization in space in the scanner head reach optimum condition, compared with prior art, not only saves the space but also seem more reasonable.
4, the utility model adopts four kinds of reflectings surface, and eyeglass all is 45 ° of angles with level and places, and this special angle design not only makes eyeglass settle the precision height, and is easy to control, and measurement, verification are simple and convenient.
Description of drawings
Accompanying drawing 1 is the index path of known technology light path design example one;
Accompanying drawing 2 is the index path of known technology light path design example two;
Accompanying drawing 3 is the index path of known technology light path design example three;
Accompanying drawing 4 is the index path of known technology light path design example four;
Accompanying drawing 5 is a scanner head external structure synoptic diagram;
Accompanying drawing 6 is the utility model index path that once circulates;
Accompanying drawing 7 is twice circulation index path of the utility model;
Accompanying drawing 8 is first kind of deformation design index path of the utility model;
Accompanying drawing 9 is second kind of deformation design index path of the utility model;
Accompanying drawing 10 is the utility model schematic diagram;
Accompanying drawing 11 is the third deformation design index path of the utility model;
Accompanying drawing 12 is the 4th kind of deformation design index path of the utility model.
In the above accompanying drawing: 1, entrance port; 2, exit portal; 3, bare headed frame; 4, camera lens; 5, photoelectric coupled plate; M1～M8, reflecting optics.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one: shown in accompanying drawing 6, a kind of scanner head is made up of bare headed frame 3, reflector group, camera lens 4 and photoelectric coupled plate 5 (CCD/B) around the long optical-path light-path device of camera lens formula.Reflector group is made up of four reflecting optics M1, M2, M3 and M4, every reflecting optics is as a kind of reflecting surface of different angles, a limit of every kind of corresponding rectangle reflection box of reflecting surface, and reflecting surface is towards the inboard of rectangle reflection box, reflecting surface and level are 45 ° of angles places, and entad constitutes the reflected light path that circulates in the convergent with this.Above two reflecting optics M4 and M3 between be provided with entrance port 1, between two reflecting optics M3 on right side and M2, be provided with exit portal 2, camera lens 4 places within the circulation light path and is positioned on the emergent ray position, and photoelectric coupled plate 5 places after exit portal 2 light paths.The present embodiment light path is: light is through entrance port 1 → M1 → M2 → M3 → M4 → M1 → camera lens 4 → exit portal 2 → photoelectric coupled plate 5, the light path reflection that once circulates in the rectangle reflection box.
Embodiment two: shown in accompanying drawing 7, a kind of scanner head is around the long optical-path light-path device of camera lens formula, and its structure is identical with embodiment one.The present embodiment light path is: light is through entrance port 1 → M1 → M2 → M3 → M4 → M1 → M2 → M3 → M4 → M1 → camera lens 4 → exit portal 2 → photoelectric coupled plate 5, and light path is carried out twice circulation reflection in the rectangle reflection box.
Embodiment three: shown in accompanying drawing 11, a kind of scanner head is made up of bare headed frame 3, reflector group, camera lens 4 and photoelectric coupled plate 5 (CCD/B) around the long optical-path light-path device of camera lens formula.Reflector group is made up of five reflecting optics M1, M2, M3, M4 and M5, and five reflecting optics are divided into four kinds of reflectings surface, and wherein M1 and M5 belong to a kind of reflecting surface, and remaining M2, M3, M4 are respectively a kind of reflecting surface.A limit of the corresponding rectangle reflection box of every kind of reflecting surface, and reflecting surface is towards the inboard of rectangle reflection box, 45 ° of angles placements of reflecting surface and level entad constitute the reflected light path that circulates in the convergent with this.Above two reflecting optics M4 and M3 between be provided with entrance port 1, between two reflecting optics M3 on right side and M2, be provided with exit portal 2, camera lens 4 places within the circulation light path and is positioned on the emergent ray position, and photoelectric coupled plate 5 places after exit portal 2 light paths.The present embodiment light path is: light is through entrance port 1 → M1 → M2 → M3 → M4 → M1 → M2 → M3 → M4 → M5 → camera lens 4 → exit portal 2 → photoelectric coupled plate 5, and light path is carried out twice circulation reflection in the rectangle reflection box.
Embodiment four: shown in accompanying drawing 8, scanner head is made up of bare headed frame 3, reflector group, camera lens 4 and photoelectric coupled plate 5 (CCD/B) around the long optical-path light-path device of camera lens formula.Reflector group is made up of six reflecting optics M1, M2, M3, M4, M5 and M6, and six reflecting optics are divided into four kinds of reflectings surface, and wherein M1 and M6 belong to a kind of reflecting surface, and M4 and M5 belong to a kind of reflecting surface, and remaining M2, M3 are respectively a kind of reflecting surface.A limit of the corresponding rectangle reflection box of every kind of reflecting surface, and reflecting surface is towards the inboard of rectangle reflection box, reflecting surface and level are 45 ° of angles placements, entad constitute the reflected light path that circulates in the convergent with this.Above two reflecting optics M4 and M3 between be provided with entrance port 1, between two reflecting optics M3 on right side and M2, be provided with exit portal 2, camera lens 4 and photoelectric coupled plate 5 place after exit portal 2 light paths successively.The present embodiment light path is: light is through entrance port 1 → M1 → M2 → M3 → M4 → M1 → M2 → M3 → M5 → M6 → camera lens 4 → exit portal 2 → photoelectric coupled plate 5, and light path is carried out twice circulation reflection in the rectangle reflection box.
Embodiment five: shown in accompanying drawing 12, a kind of scanner head is made up of bare headed frame 3, reflector group, camera lens 4 and photoelectric coupled plate 5 (CCD/B) around the long optical-path light-path device of camera lens formula.Reflector group is made up of seven reflecting optics M1, M2, M3, M4, M5, M6 and M7, seven reflecting optics are divided into four kinds of reflectings surface, and wherein M1 and M7 belong to a kind of reflecting surface, and M2 and M5 belong to a kind of reflecting surface, M3 and M6 belong to a kind of reflecting surface, and M4 is a kind of reflecting surface.A limit of the corresponding rectangle reflection box of every kind of reflecting surface, and reflecting surface is towards the inboard of rectangle reflection box, reflecting surface and level are 45 ° of angles placements, entad constitute the reflected light path that circulates in the convergent with this.Above two reflecting optics M4 and M3 between be provided with entrance port 1, between two reflecting optics M5 on right side and M6, be provided with exit portal 2, camera lens 4 and photoelectric coupled plate 5 place after exit portal 2 light paths successively.The present embodiment light path is: light is through entrance port 1 → M1 → M2 → M3 → M4 → M1 → M5 → M6 → M4 → M7 → camera lens 4 → exit portal 2 → photoelectric coupled plate 5, and light path is carried out twice circulation reflection in the rectangle reflection box.
Embodiment six: shown in accompanying drawing 9, a kind of scanner head is made up of bare headed frame 3, reflector group, camera lens 4 and photoelectric coupled plate 5 (CCD/B) around the long optical-path light-path device of camera lens formula.Reflector group is made up of eight reflecting optics M1, M2, M3, M4, M5, M6, M7 and M8, eight reflecting optics are divided into four kinds of reflectings surface, wherein M1 and M8 belong to a kind of reflecting surface, M2 and M5 belong to a kind of reflecting surface, M3 and M6 belong to a kind of reflecting surface, and M4 and M7 belong to a kind of reflecting surface.A limit of the corresponding rectangle reflection box of every kind of reflecting surface, and reflecting surface is towards the inboard of rectangle reflection box, reflecting surface and level are 45 ° of angles placements, entad constitute the reflected light path that circulates in the convergent with this.Above two reflecting optics M4 and M3 between be provided with entrance port 1, between two reflecting optics M5 on right side and M6, be provided with exit portal 2, camera lens 4 and photoelectric coupled plate 5 place after exit portal 2 light paths successively.The present embodiment light path is: light is through entrance port 1 → M1 → M2 → M3 → M4 → M1 → M5 → M6 → M7 → M8 → camera lens 4 → exit portal 2 → photoelectric coupled plate 5, and light path is carried out twice circulation reflection in the rectangle reflection box.
Claims (7)
1, a kind of scanner head is made of bare headed frame [3], reflector group and camera lens [4] around the long optical-path light-path device of camera lens formula, it is characterized in that:
(1), reflector group is made up of four reflecting optics at least, all reflecting optics are divided into the reflecting surface of four kinds of different angles, a limit of every kind of corresponding rectangle reflection box of reflecting surface, and reflecting surface is towards the inboard of rectangle reflection box, reflecting surface and level are 45 ° of angles places, and entad constitutes the reflected light path that circulates in the convergent with this;
(2), above two kinds of reflectings surface between be provided with light entrance port [1], between two kinds of reflectings surface of a side, be provided with beam projecting mouth [2], camera lens places within the circulation light path, and is positioned on the emergent ray that passes exit portal [2].
2, light path device according to claim 1 is characterized in that: described reflector group adopts four reflecting optics, and every reflecting optics constitutes a kind of reflecting surface.
3, light path device according to claim 1 is characterized in that: described reflector group adopts five reflecting optics, and five reflecting optics are divided into four kinds of reflectings surface, wherein have a kind of reflecting surface to comprise two reflecting optics that are parallel to each other.
4, light path device according to claim 1 is characterized in that: described reflector group adopts six reflecting optics, and six reflecting optics are divided into four kinds of reflectings surface, wherein have two kinds of reflectings surface to comprise two reflecting optics that are parallel to each other respectively.
5, light path device according to claim 1 is characterized in that: described reflector group adopts seven reflecting optics, and seven reflecting optics are divided into four kinds of reflectings surface, wherein have three kinds of reflectings surface to comprise two reflecting optics that are parallel to each other respectively.
6, light path device according to claim 1 is characterized in that: described reflector group adopts eight reflecting optics, and eight reflecting optics are divided into four kinds of reflectings surface, and wherein four kinds of reflectings surface comprise two reflecting optics that are parallel to each other respectively.
7, light path device according to claim 1 is characterized in that: the length breadth ratio relation of being inversely proportional to of the cycle index of described light path and rectangle reflection box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02263182.8U CN2556668Y (en) | 2002-07-16 | 2002-07-16 | Scanning head surrounding lens type long optical length and optial path device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02263182.8U CN2556668Y (en) | 2002-07-16 | 2002-07-16 | Scanning head surrounding lens type long optical length and optial path device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2556668Y true CN2556668Y (en) | 2003-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02263182.8U Expired - Fee Related CN2556668Y (en) | 2002-07-16 | 2002-07-16 | Scanning head surrounding lens type long optical length and optial path device |
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| Country | Link |
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| CN (1) | CN2556668Y (en) |
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2002
- 2002-07-16 CN CN02263182.8U patent/CN2556668Y/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |