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CN2321020Y - Double-mirror multiple reflection optical path device - Google Patents

Double-mirror multiple reflection optical path device Download PDF

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Publication number
CN2321020Y
CN2321020Y CN97215693U CN97215693U CN2321020Y CN 2321020 Y CN2321020 Y CN 2321020Y CN 97215693 U CN97215693 U CN 97215693U CN 97215693 U CN97215693 U CN 97215693U CN 2321020 Y CN2321020 Y CN 2321020Y
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CN
China
Prior art keywords
reflector
reflection
optical path
light
lens
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN97215693U
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Chinese (zh)
Inventor
曾国隆
黄维新
骆世民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Transpacific IP Ltd
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Transpacific IP Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of CN2321020Y publication Critical patent/CN2321020Y/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/12—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using the sheet-feed movement or the medium-advance or the drum-rotation movement as the slow scanning component, e.g. arrangements for the main-scanning
    • H04N1/121—Feeding arrangements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/004—Systems comprising a plurality of reflections between two or more surfaces, e.g. cells, resonators
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/02—Catoptric systems, e.g. image erecting and reversing system
    • G02B17/023—Catoptric systems, e.g. image erecting and reversing system for extending or folding an optical path, e.g. delay lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
    • H04N1/191—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a one-dimensional array, or a combination of one-dimensional arrays, or a substantially one-dimensional array, e.g. an array of staggered elements
    • H04N1/192—Simultaneously or substantially simultaneously scanning picture elements on one main scanning line
    • H04N1/193—Simultaneously or substantially simultaneously scanning picture elements on one main scanning line using electrically scanned linear arrays, e.g. linear CCD arrays

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

A double-lens multiple reflection optical path device is composed of a light source unit, a reflection unit, a lens and a charge coupling element. The optical path device is used in an optical scanner, and in order to reduce the volume, the weight and the manufacturing cost of the optical scanner, the combination of corresponding positions and proper angles of two reflecting mirrors is adopted, so that in the optical path of reflecting the light of the original document, the light can be respectively reflected twice or more than twice on each reflecting mirror, and then is focused by a lens to form an image on a charge coupled element.

Description

Two lens is the reflected light range device repeatedly
The utility model relates to repeatedly reflected light range device of a kind of two lens that is used for optical scanning device, is made up of light source cell, reflector element, camera lens and charge coupled cell.
The utilization principle of optical scanning device mainly is to adopt an optical path device that " light " turnover is gathered into picture through camera lens, and utilizes a charge coupled cell (CCD converter) that " light " signal transformation of imaging is become the digital signal that can supply the computing machine memory and handle.Yet because general optical path device is subject to the focusing usefulness of camera lens and the requirement of image quality, the light path path total length value (Total Track) of its " light " is a fixed value.Can reach the purpose of miniaturization for the volume that makes optical path device, general optical path device adopts several catoptrons with " light " secondary reflection of counting, after making " light " path summation of each intersegmental reflection reach desired value, could by a camera lens " light " be gathered into picture effectively.Therefore, in optical path device, its number of mirrors, size and the corresponding mutually position that disposes, the volume and weight of this optical path device will directly be determined, and the degree of difficulty of the complexity of structure and element location, and volume size, assembling manufacture process and production cost that also can the remote effect scanning machine.
The optical path device of existing optical scanning device all is to adopt " light " of three, four catoptrons to make three, four secondary reflections, promptly in the light path of " light ", after all only passing through primary event respectively on the catoptron, just image on the charge coupled cell via the gathering of camera lens.Because such optical path device will have three, four catoptrons, therefore not only the location of its element is difficult for, the various and complex structure of part, and its whole volume, weight are all bigger, and cost is also higher.Therefore, the structure of such optical scanning device and package program also can't be simplified, and its whole volume, weight and cost etc. more can't effectively reduce.Yet, generally to pursue gently in existing each electronic product, under thin, short, the little fashion, this optical path device remains to be improved really.
The purpose of this utility model is the deficiency for fear of above-mentioned existing optical path device, and a kind of optical path device that adopts two lens repeatedly to reflect is provided.
The utility model is to realize above-mentioned purpose by following technical measures:
It is made up of light source cell, reflector element, camera lens and charge coupled cell, its architectural feature is that described reflector element is to do corresponding position and the suitably combination of angle by two catoptrons, in the light path path of " light " of reflextion copy file, can be respectively after the reflection of carrying out on each catoptron more than twice or twice, promptly " light " of this reflextion copy file total order of reflection in reflector element can be more than four times or four times, images on the charge coupled cell via the gathering of camera lens again.
Technical measures of the present utility model also are described two repeatedly reflections that catoptron carried out, and the incident angle of its reflection " light " is less than 10 °.
Description of drawings:
Fig. 1 is a repeatedly reflected light range device synoptic diagram of two lens of the present utility model
Fig. 2 is another embodiment synoptic diagram of the present utility model
Among the figure: 4 for master copy file, 8 for dustproof transparent glasses lens, 10 for optical path device, 20 for light source cell, 30 for reflector element, 31 be that first catoptron, 32 is that second catoptron, 40 is paper pushing roller for charge coupled cell, 61 and 62 for camera lens, 50.
In conjunction with the accompanying drawings the utility model is further described:
As shown in Figure 1, two lens of the present utility model repeatedly reflected light range device 10 be arranged in the paper feeding formula optical scanning device.This optical path device 10 mainly includes: a light source cell 20, a reflector element 30, a camera lens 40 and a charge coupled cell 50, wherein light source cell 20 can provide optical path device 10 imagings required " light ".Reflector element 30 mainly includes one first catoptron 31 and one second catoptron 32, after " light " can being done the reflection more than four times or four times, " light " can image on the charge coupled cell 50 by the gathering of camera lens 40, and is transformed into the digital signal that can supply the computing machine memory and handle.
Technical characterictic of the present utility model is the design of reflector element 30 by corresponding mutually configuration and angle between two catoptrons 31,32, make in the light path path of " light ", can on each catoptron, carry out the reflection more than twice or twice respectively, perfect reflecting effect be can reach, and eyeglass number set in the optical path device 10 and part number effectively reduced.
As shown in Figure 1, the master copy file of desiring to be scanned 4 is sent to the scanning area that is equiped with a dustproof transparent glasses lens 8 by paper pushing roller 61,62, transparent glasses lens 8 is positioned at the centre of paper pushing roller 61,62, master copy file 4 they below by, whole scanning area is in the below of device.The left side of light source cell 20 above dustproof transparent glasses lens 8 injected by in two catoptrons, 31,32 reflector elements of being formed 30 via the reflection of this master copy file 4 by " light " that light source cell 20 penetrates.Wherein first catoptron 31 with a low-angle corresponding to dustproof transparent glasses lens 8, " light " that master copy file 4 can be reflected and come reflects to second catoptron 32 with a low-angle, so second catoptron 32 is corresponding to first catoptron 31, second catoptron 32 is below first catoptron 31, " light " that is come by 31 reflections of first catoptron should " light " can be reflexed to first catoptron 31 again with a low-angle reflection angle, and first catoptron 31 can will should " light " reflex to second catoptron 32 with a little reflection angle for the second time again, and via the 32 secondary reflections of second catoptron directive camera lens 40 images on the charge coupled cell 50 by the gathering of camera lens 40.Charge coupled cell 50 is above camera lens 40, and they are in the upper right side of device.This shows, in the present embodiment, " light " total order of reflection in reflector element 30 is four times, and wherein twice of first catoptron 31 and all first back reflection of second catoptron 32, can make " light " in this reflector element 30 in the light path of interreflection, its light path path total length (TT) can reach required value, and can reach good reflection and imaging effect.If with M 1Represent first catoptron 31, with M 2Represent second catoptron, then should " light " light path path in reflector element 30 be: master copy file → M 1→ M 2→ M 1→ M 2→ camera lens.
Fig. 2 is another embodiment synoptic diagram of the utility model.Its " light " total order of reflection in reflector element 30, be not limited to four times, total order of reflection of its " light " also can be six times, eight times, ten times or more times, promptly should " light " can successively carry out respectively three times, four times, five times on first catoptron 31 and second catoptron 32 or reflection more frequently.Because good required light path path total length value (TT) of imaging is a definite value,, and can therefore dwindle the volume of optical path device 10 so the increase of total order of reflection can make the distance between two catoptrons 31,32 be shortened.But because of the resolution that is limited to now general camera lens and the deficiency of focusing force, and " light " is in the restriction of the factors such as optical energy attenuation phenomenon of reflex time.So that can reach the requirement of general image quality, its " light " just total order of reflection should be less than or equal six times comparatively appropriate.
And, because along with " light " increase at 31,32 order of reflection that carry out of two catoptrons, the width dimensions of two catoptrons 31,32 also needs to increase thereupon, and for the width dimensions that makes two catoptrons 31,32 contracts lessly, the incident angle of its " light " and reflection angle should be healed better little.Generally speaking, can adopt the incident angle below 10 °, can meet the economic principle of less catoptron.
In sum, Double-lens multiple reflection optical path device of the present utility model has following advantage as can be known:
1. need only can reach good reflection and imaging effect by two speculums;
2. number of mirrors is few, so less in order to the part of locating speculum, it is shared to save locating element The space, and reduce the volume of optical path device;
3. number of elements reduces, thus locate, assemble easily, and unitary construction can be simplified thereupon;
4. the cost of making and assembling can obtain descending.

Claims (4)

1．一种双镜片多次反射光程装置，由光源单元、反射单元、镜头和电荷耦合元件组成，其特征在于所述的反射单元是仅由两个反射镜作对应位置和适当角度的组合，反射单元位于由原稿文件、送纸滚轮、防尘透明镜片和光源单元组成的扫描区的上方，反射单元的第一反射镜在第二反射镜的上方，相对于防尘透明镜片，接受光源从原稿文件反射来的反射光，两个反射镜相互以小角度的反射角相处，镜头和电荷耦合元件位于上方的一侧，相对于第二反射镜，接受第二反射镜反射来的“光”。1. A double-mirror multi-reflection optical path device, which is composed of a light source unit, a reflection unit, a lens and a charge-coupled element, is characterized in that the reflection unit is a combination of only two reflection mirrors at corresponding positions and appropriate angles, and the reflection The unit is located above the scanning area composed of the original document, the paper feed roller, the dust-proof transparent lens and the light source unit. The first reflector of the reflection unit is above the second reflector. For the reflected light reflected by the document, the two reflectors are at a small reflection angle to each other, and the lens and the charge-coupled device are located on the upper side, relative to the second reflector, to receive the "light" reflected by the second reflector. 2．根据权利要求1所述的双镜片多次反射光程装置，其特征在于所述的两个反射镜所进行的多次反射，其反射“光”的入射角小于10°。2. According to claim 1, the dual mirror multiple reflection optical path device is characterized in that the incident angle of the reflected "light" of the multiple reflections performed by the two mirrors is less than 10°. 3．根据权利要求1或2所述的双镜片多次反射光程装置，其特征在于所述的反射单元的光程路径为：原稿文件→第一反射镜→第二反射镜→第一反射镜→第二反射镜→镜头，总反射次数为四次。3. According to claim 1 or 2, the dual-mirror multi-reflection optical path device is characterized in that the optical path of the reflection unit is: original document → first reflector → second reflector → first reflector → The second reflecting mirror→lens, the total number of reflections is four times. 4．根据权利要求1或2所述的双镜片多次反射光程装置，其特征在于所述的反射单元的光程路径为：原稿文件→第一反射镜→第二反射镜→第一反射镜→第二反射镜→第一反射镜→第二反射镜→镜头，总反射次数六次。4. According to claim 1 or 2, the dual-mirror multi-reflection optical path device is characterized in that the optical path of the reflection unit is: original document → first reflector → second reflector → first reflector → The second reflector → the first reflector → the second reflector → the lens, the total number of reflections is six times.
CN97215693U 1996-09-13 1997-05-15 Double-mirror multiple reflection optical path device Expired - Fee Related CN2321020Y (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US71373896A 1996-09-13 1996-09-13
US713,738 1996-09-13

Publications (1)

Publication Number Publication Date
CN2321020Y true CN2321020Y (en) 1999-05-26

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Application Number Title Priority Date Filing Date
CN97215693U Expired - Fee Related CN2321020Y (en) 1996-09-13 1997-05-15 Double-mirror multiple reflection optical path device

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CN (1) CN2321020Y (en)
GB (1) GB2317293A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103115928A (en) * 2013-02-05 2013-05-22 深圳市华星光电技术有限公司 Device, machine and method for checking foreign substances on surfaces of glass

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115184899A (en) * 2022-07-01 2022-10-14 武汉海达数云技术有限公司 Ultrashort-focus laser radar and preparation method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4547813A (en) * 1984-01-27 1985-10-15 Burroughs Corporation Apparatus for controlling light distribution in line scan optical imaging systems
US5136415A (en) * 1990-07-31 1992-08-04 Xerox Corporation Multi-reflection scanner
GB2260200B (en) * 1991-10-04 1994-07-27 Avision Inc Light beam folding device using parallel mirrors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103115928A (en) * 2013-02-05 2013-05-22 深圳市华星光电技术有限公司 Device, machine and method for checking foreign substances on surfaces of glass

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GB9707772D0 (en) 1997-06-04
GB2317293A (en) 1998-03-18

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C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee