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CN1324345C - Optical components with movable mirrors - Google Patents

Optical components with movable mirrors Download PDF

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Publication number
CN1324345C
CN1324345C CNB031202551A CN03120255A CN1324345C CN 1324345 C CN1324345 C CN 1324345C CN B031202551 A CNB031202551 A CN B031202551A CN 03120255 A CN03120255 A CN 03120255A CN 1324345 C CN1324345 C CN 1324345C
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carrier
catoptron
sensing element
scanned
scanner
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CN1527092A (en
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陈世煌
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TRANSPACIFIC IP Pte Ltd
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Transpacific IP Ltd
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Abstract

An optical assembly with a movable reflector is used in a scanner to scan a document to be scanned. The optical assembly includes: the first carrier is provided with a first reflector, a lens and a photoelectric sensing element, and the first carrier moves along the scanning direction to scan a document to be scanned; the second carrier is provided with a second reflecting mirror and can generate relative movement with the first carrier along the scanning direction; and a third carrier having a third reflector, the third carrier being capable of moving relative to the first carrier along the scanning direction. The first carrier is positioned between the second carrier and the third carrier, the distance between the second carrier and the third carrier is kept constant in the scanning process, and the image light of the file to be scanned is focused by the lens and imaged on the photoelectric sensing element after being reflected by the first reflector, the second reflector and the third reflector in sequence.

Description

具有可移动的反射镜的光学组件Optical components with movable mirrors

(1)技术领域(1) Technical field

本发明是有关于一种光学组件，且特别是有关于一种具有可移动的反射镜的光学组件。The present invention relates to an optical assembly, and in particular to an optical assembly with a movable mirror.

(2)背景技术(2) Background technology

在个人电脑的众多周边当中，扫描器可说是基本的配备之一。一般而言，现今市面上的扫描器其功能及扫描图像的品质均差别不大。因此，如何使扫描器的体积可以有效缩小，进而使其占据的空间变小，以能更方便地被使用，遂成为扫描器研发人员的重点研发项目之一。Among the many peripherals of a personal computer, a scanner can be said to be one of the basic equipment. Generally speaking, the scanners on the market today have little difference in function and quality of scanned images. Therefore, how to effectively reduce the volume of the scanner, thereby reducing the space it occupies, so that it can be used more conveniently has become one of the key research and development projects for scanner developers.

请参照图1，它是传统的光学组件的示意图。传统的光学组件100中包括有载具110及导引件120。而载具110中则配置有反射镜组、透镜及光电感应元件(图中未示出)。Please refer to FIG. 1, which is a schematic diagram of a conventional optical assembly. The conventional optical assembly 100 includes a carrier 110 and a guide 120 . The carrier 110 is configured with mirror groups, lenses and photoelectric sensing elements (not shown in the figure).

载具110耦接于导引件120上，并且可于导引件120上沿扫描方向D的方向来回移动，以扫描待扫描文件。The carrier 110 is coupled to the guide 120 and can move back and forth on the guide 120 along the scanning direction D to scan the document to be scanned.

扫描进行时，待扫描文件的图像光130(可为待扫描文件的反射光或透射光)进入载具110中。图像光130先经由由多片反射镜组构而成的反射镜组的反射后，经透镜聚焦而为光电感应元件所接收。When scanning is in progress, the image light 130 of the document to be scanned (which may be reflected light or transmitted light of the document to be scanned) enters the carrier 110 . The image light 130 is firstly reflected by the mirror group composed of multiple mirrors, and then focused by the lens to be received by the photoelectric sensing element.

反射镜组中的各个反射镜、透镜及光电感应元件均被固定配置于载具110中。其目的在于保持自待扫描文件发出的图像光，自待扫描文件、经各个反射镜反射而至透镜的前光程，以及透镜至光电感应元件的后光程均得以维持为一固定值。以此才能得到一清晰且品质良好的扫描图像。但是，因为载具110容置了所有的反射镜、透镜及光电感应元件，所以载具110在体积上不得不较大，较占据空间。Each reflector, lens and photoelectric sensing element in the reflector group are fixedly arranged in the carrier 110 . The purpose is to keep the image light emitted from the document to be scanned, the front optical path from the document to be scanned, reflected by each reflector to the lens, and the rear optical path from the lens to the photoelectric sensing element to be maintained at a fixed value. In this way, a clear and high-quality scanned image can be obtained. However, because the carrier 110 accommodates all the mirrors, lenses and photoelectric sensing elements, the carrier 110 has to be larger in volume and occupies more space.

由上文可知，载具110的体积过大，连带也会影响容置载具110的扫描器。因此，扫描器的整体体积也就跟着无法有效缩小。且传统的扫描组件，因背焦无法加大，故无法扫描具有较大尺寸的待扫描文件。It can be seen from the above that the large volume of the carrier 110 will also affect the scanner accommodating the carrier 110 . Therefore, the overall volume of the scanner cannot be effectively reduced. Moreover, the traditional scanning unit cannot scan large-sized documents to be scanned because the back focus cannot be increased.

(3)发明内容(3) Contents of the invention

有鉴于此，本发明的目的就是在提供一种具有可移动的反射镜的光学组件，使扫描器的整体体积得以有效缩小，使能够更方便地被使用者使用，且使扫描器能用以扫描具有较大尺寸的待扫描文件。In view of this, the purpose of the present invention is to provide an optical assembly with a movable mirror, so that the overall volume of the scanner can be effectively reduced, so that it can be used more conveniently by users, and the scanner can be used for Scan documents to be scanned that have a larger size.

根据上述目的，本发明的具有可移动的反射镜的光学组件，使用于扫描器中以扫描待扫描文件，包括：第一载具，具有第一反射镜、透镜及光电感应元件，此第一载具是沿扫描方向移动，以扫描待扫描文件；第二载具，具有第二反射镜，此第二载具是可沿扫描方向与第一载具产生相对移动；以及第三载具，具有第三反射镜，此第三载具是可沿扫描方向与第一载具产生相对移动。其中，第一载具是位于第二载具与第三载具之间，且第二载具与第三载具间的距离于扫描过程中是维持固定值，待扫描文件的图像光依序经第一反射镜、第二反射镜及第三反射镜的反射后，经透镜聚焦而成像于光电感应元件。According to the above purpose, the optical assembly with a movable reflector of the present invention is used in a scanner to scan documents to be scanned, including: a first carrier with a first reflector, a lens and a photoelectric sensing element, the first The carrier moves along the scanning direction to scan the document to be scanned; the second carrier has a second mirror, and the second carrier can move relative to the first carrier along the scanning direction; and the third carrier, With the third mirror, the third carrier can move relative to the first carrier along the scanning direction. Wherein, the first carrier is located between the second carrier and the third carrier, and the distance between the second carrier and the third carrier is maintained at a constant value during the scanning process, and the image lights of the documents to be scanned are sequentially After being reflected by the first reflector, the second reflector and the third reflector, it is focused by the lens and imaged on the photoelectric sensing element.

为让本发明的上述目的、特征、和优点能更明显易懂，下文特举较佳实施例并配合附图进行详细说明如下。In order to make the above-mentioned objects, features, and advantages of the present invention more comprehensible, preferred embodiments will be described in detail below along with accompanying drawings.

(4)附图说明(4) Description of drawings

图1是传统的光学组件的示意图。Figure 1 is a schematic diagram of a conventional optical assembly.

图2A是依照本发明的较佳实施例的具有可移动的反射镜的光学组件的结构示意图。FIG. 2A is a schematic structural diagram of an optical assembly with a movable mirror according to a preferred embodiment of the present invention.

图2B是图2A的侧视图。Figure 2B is a side view of Figure 2A.

图3A是相应于图2A和2B的本发明的光学组件于扫描过程一的各载具的相对位置的示意图。FIG. 3A is a schematic diagram of relative positions of the optical components of the present invention in scanning process 1 corresponding to FIGS. 2A and 2B .

图3B是相应于图2A和2B的本发明的光学组件于扫描过程二的各载具的相对位置的示意图。FIG. 3B is a schematic diagram of relative positions of the optical components of the present invention in scanning process 2 corresponding to FIGS. 2A and 2B .

图4是依照本发明的较佳实施例的具有可移动的反射镜的光学组件中另一种反射镜配置方式的侧视图。Fig. 4 is a side view of another arrangement of reflectors in an optical assembly with movable reflectors according to a preferred embodiment of the present invention.

图5A是本发明的具有可移动的反射镜的光学组件于具有较大背焦时的结构示意图。FIG. 5A is a schematic structural diagram of an optical component with a movable mirror in the present invention when it has a large back focus.

图5B是本发明的具有可移动的反射镜的光学组件于具有较大背焦时的另一种结构示意图。FIG. 5B is a schematic diagram of another structure of the optical assembly with a movable reflector in the present invention when it has a large back focus.

(5)具有体实施方式(5) Has a specific embodiment

本发明提供的具有可移动的反射镜的光学组件，具有三个载具，有别于只具有一个大载具的传统的光学组件。本发明的光学组件，可以使得容置载具的扫描器的体积变小。且可在不增大载具的情况下，于容置透镜与光电感应元件的载具上，于透镜与光电感应元件间配置反射镜，以增大背焦，使扫描器可以透过该光学组件扫描具有较大尺寸的待扫描文件。The present invention provides an optical assembly with a movable reflector with three carriers, which is different from the traditional optical assembly with only one large carrier. The optical assembly of the present invention can reduce the volume of the scanner accommodating the carrier. And without increasing the size of the carrier, on the carrier that accommodates the lens and the photoelectric sensor element, a mirror is arranged between the lens and the photoelectric sensor element to increase the back focus, so that the scanner can pass through the optical sensor. Component scans documents that have a larger size to be scanned.

请同时参照图2A与图2B。图2A是依照本发明的较佳实施例的具有可移动的反射镜的光学组件的结构示意图，图2B为图2A的侧视图。光学组件200可用于扫描器中以扫描待扫描文件，光学组件200包括有载具210、220与230、导引件240及固定件250。Please refer to FIG. 2A and FIG. 2B at the same time. FIG. 2A is a schematic structural diagram of an optical assembly with a movable mirror according to a preferred embodiment of the present invention, and FIG. 2B is a side view of FIG. 2A . The optical assembly 200 can be used in a scanner to scan documents to be scanned. The optical assembly 200 includes carriers 210 , 220 and 230 , a guide 240 and a fixing member 250 .

载具210则具有反射镜212、透镜214及光电感应元件216。载具210是可沿着扫描方向D(亦即导引件240的轴向方向)，而在与其耦接的导引件240上移动，以扫描待扫描文件。The carrier 210 has a mirror 212 , a lens 214 and a photoelectric sensor 216 . The carrier 210 can move along the scanning direction D (ie, the axial direction of the guide 240 ) on the guide 240 coupled therewith to scan the document to be scanned.

载具220具有反射镜222与224。载具220是可沿着扫描方向D，在与其耦接的导引件240上与载具210产生相对移动。The carrier 220 has mirrors 222 and 224 . The carrier 220 can move relative to the carrier 210 along the scanning direction D on the guide 240 coupled thereto.

载具230与载具220相同，同样具有二反射镜，其分别为反射镜232与234。载具230亦是可沿扫描方向D，在与其耦接的导引件240上与载具210产生相对移动。The carrier 230 is the same as the carrier 220 and also has two mirrors, which are mirrors 232 and 234 . The carrier 230 can also move relative to the carrier 210 along the scanning direction D on the guide 240 coupled thereto.

如图2A与图2B中所绘示，待扫描文件的图像光260是依序经反射镜212、222、224、232与234的反射后，经透镜214聚焦而成像于光电感应元件216上。As shown in FIG. 2A and FIG. 2B , the image light 260 of the document to be scanned is reflected by the mirrors 212 , 222 , 224 , 232 and 234 in sequence, and then focused by the lens 214 to be imaged on the photoelectric sensor 216 .

图像光260的前光程需维持为固定不变的光学性质，亦即反射镜222与反射镜212间、反射镜232与反射镜224间、以及透镜214与反射镜234间的距离的总和必须维持一个定值。因此，通过将载具210配置于载具220与载具230之间，且令载具220与载具230之间的距离在扫描的过程中维持一固定值，则可达到图像光260的前光程维持不变的目的。维持载具220与载具230间的距离不变则可通过连接二者的固定件250来达成，图示中所示固定件250是穿过载具210而连接载具220与载具230。载具210可于固定件250上、相对于载具220与载具230移动，但载具220与载具230间于扫描过程中因固定件250的连接，使其之间无法具有相对位移。The front optical path of the image light 260 needs to maintain a constant optical property, that is, the sum of the distances between the reflector 222 and the reflector 212, between the reflector 232 and the reflector 224, and between the lens 214 and the reflector 234 must be maintain a constant value. Therefore, by disposing the carrier 210 between the carrier 220 and the carrier 230, and keeping the distance between the carrier 220 and the carrier 230 at a constant value during the scanning process, the front of the image light 260 can be achieved. The purpose of keeping the optical path constant. Maintaining the constant distance between the carrier 220 and the carrier 230 can be achieved through the fixing member 250 connecting the two. The fixing member 250 shown in the figure passes through the carrier 210 and connects the carrier 220 and the carrier 230 . The carrier 210 can move on the fixing member 250 relative to the carrier 220 and the carrier 230 , but the carrier 220 and the carrier 230 cannot have relative displacement due to the connection of the fixing member 250 during the scanning process.

请参照图3A与图3B，是相应于图2A和2B的本发明的光学组件于扫描过程中各载具的相对位置的示意图。如图中所示，于扫描过程中，载具210、220与230是均可沿扫描方向D来回移动。载具220与载具230间是始终维持为X+Y的距离(可通过图2A中的固定件250来实现)，当载具210与载具230间的距离由X增加为X+a时(由3A图到3B图)，载具210与载具220间的距离就会由Y缩减为Y-a(由3A图到3B图)。Please refer to FIG. 3A and FIG. 3B , which are schematic views of the relative positions of the carriers during the scanning process of the optical components of the present invention corresponding to FIGS. 2A and 2B . As shown in the figure, during the scanning process, the carriers 210 , 220 and 230 can all move back and forth along the scanning direction D. As shown in FIG. The distance between the carrier 220 and the carrier 230 is always maintained as X+Y (which can be realized by the fixing member 250 in FIG. 2A ). When the distance between the carrier 210 and the carrier 230 is increased from X to X+a (from FIG. 3A to FIG. 3B ), the distance between the carrier 210 and the carrier 220 will be reduced from Y to Y-a (from FIG. 3A to FIG. 3B ).

请同时参照图2B及图4。图4是依照本发明的较佳实施例的具有可移动的反射镜的光学组件中另一种反射镜配置方式的侧视图。在不改变前光程的情况下，原本载具220中的二片反射镜222、224可以单片反射镜422取代，而载具230中的二片反射镜232、234则可以单片反射镜432取代。此种反射镜的配置方式，可以使反射镜的数目减少，亦可使容置反射镜的载具体积缩小。Please refer to FIG. 2B and FIG. 4 at the same time. Fig. 4 is a side view of another arrangement of reflectors in an optical assembly with movable reflectors according to a preferred embodiment of the present invention. Without changing the front optical path, the original two reflectors 222, 224 in the carrier 220 can be replaced by a single reflector 422, while the two reflectors 232, 234 in the carrier 230 can be replaced by a single reflector 432 superseded. The arrangement of the reflecting mirrors can reduce the number of reflecting mirrors, and can also reduce the volume of the carrier accommodating the reflecting mirrors.

请参照图5A与图5B，它们是本发明的具有可移动的反射镜的光学组件于具有较大背焦时的结构示意图。通常于欲扫描尺寸较大的待扫描文件时，需要具有较大的背焦，亦即，透镜与光电感应元件的距离必须加大。此可通过如图5A或图5B中所示的结构来加以实现。Please refer to FIG. 5A and FIG. 5B , which are schematic structural diagrams of an optical component with a movable reflector in the present invention when it has a large back focus. Generally, when scanning a large-sized document to be scanned, a larger back focus is required, that is, the distance between the lens and the photoelectric sensing element must be increased. This can be achieved with a structure as shown in Figure 5A or Figure 5B.

如图5A中所示，在不增加载具210的体积的情况下，可将透镜214及光电感应元件216所在的位置作一些调整，且在载具210上另配置反射镜512，或如图5B中可在载具210的相异两侧上分别配置反射镜514及反射镜516，用以反射经透镜214聚焦的图像光260至光电感应元件216上。使用此种方式即可有效增加背焦，光学组件即可用来扫描具有较大尺寸的待扫描文件。As shown in FIG. 5A, without increasing the volume of the carrier 210, the positions of the lens 214 and the photoelectric sensor 216 can be adjusted, and a mirror 512 is additionally arranged on the carrier 210, or as shown in FIG. In 5B, a reflector 514 and a reflector 516 can be respectively arranged on two different sides of the carrier 210 to reflect the image light 260 focused by the lens 214 to the photoelectric sensor 216 . In this way, the back focus can be effectively increased, and the optical components can be used to scan large-sized documents to be scanned.

上述的扫描器可以是反射式或是透射式的图像扫描器；导引件240可以是轴棒或是任何其他可以使载具沿扫描方向D的方向来回移动的构件；固定件250可以是连接载具220与载具230且能令其之间无法产生相对位移且不阻碍载具210于其间移动的任何构件；而光电感应元件则可以是电荷耦合元件(charge coupled device，CCD)或互补金属氧化物半导体传感器(complementary metal oxide semiconductor sensor，CMOS sensor)。The above-mentioned scanner can be a reflective or transmissive image scanner; the guide 240 can be a shaft or any other member that can make the carrier move back and forth along the scanning direction D; the fixing member 250 can be a connection The carrier 220 and the carrier 230 can not produce relative displacement between them and do not hinder any member that the carrier 210 moves therebetween; and the photoelectric sensing element can be a charge coupled device (charge coupled device, CCD) or a complementary metal Oxide semiconductor sensor (complementary metal oxide semiconductor sensor, CMOS sensor).

上述本发明的具有可移动的反射镜的光学组件与传统的光学组件相较(传统的光学组件只具有一大体积的载具)，本发明载具210中因为已将多片反射镜移至载具220及载具230中设置，故其沿扫描方向D的方向的厚度可以很薄。而载具220与载具230中，因只配置有反射镜，故厚度亦可以很薄。而在高度尺寸上，图2B中的各个载具必定比起传统光学组件的载具要来得小，图4中的各个载具在高度尺寸上则可以更小。且由载具210上配置反射镜，则能使背焦加大，以扫描较大尺寸的待扫描文件。Compared with the traditional optical assembly (traditional optical assembly only has a large-volume carrier), the optical assembly with movable reflectors of the present invention has been moved to the carrier 210 of the present invention. The carrier 220 and the carrier 230 are arranged on the carrier 220 , so their thickness along the scanning direction D can be very thin. In the carrier 220 and the carrier 230 , since only reflective mirrors are configured, the thickness can also be very thin. In terms of height, each carrier in FIG. 2B must be smaller than the carrier of a traditional optical component, and each carrier in FIG. 4 can be smaller in height. Moreover, the reflective mirror is arranged on the carrier 210, so that the back focus can be increased to scan larger-sized documents to be scanned.

本发明上述实施例所揭示的具有可移动的反射镜的光学组件，具有的优点为：可使得容置光学组件的扫描器在体积上得以有效缩小，让使用者在使用上得以更为方便。另外，则亦可扫描较大尺寸的待扫描文件。The optical component with the movable reflector disclosed in the above embodiments of the present invention has the advantage that the volume of the scanner accommodating the optical component can be effectively reduced, making it more convenient for users to use. In addition, you can also scan larger-sized documents to be scanned.

综上所述，虽然本发明已以实施例揭示如上，然而其并非用以限定本发明，任何熟悉本技术的人士，在不脱离本发明的精神和范围内，当可作各种的更动与替换，因此本发明的保护范围当视后附的权利要求所界定的为准。To sum up, although the present invention has been disclosed above with embodiments, it is not intended to limit the present invention. Any person familiar with the art may make various modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall prevail as defined by the appended claims.

Claims (14)

1. one kind has the movably optical module of catoptron, is to be used for the one scan device to scan a file to be scanned, it is characterized in that this optical module comprises:
One first carrier has one first catoptron, lens and a photovoltaic sensing element, and this first carrier is to move along the one scan direction, with this file to be scanned of scanning;
One second carrier has one second catoptron, and this second carrier is to relatively move along this direction of scanning and the generation of this first carrier; And
One the 3rd carrier has one the 3rd catoptron, and the 3rd carrier is to relatively move along this direction of scanning and the generation of this first carrier;
Wherein, this first carrier is between this second carrier and the 3rd carrier, and the distance between this second carrier and the 3rd carrier is to keep fixed value in scanning process, one image light of this file to be scanned is in regular turn after the reflection of this first catoptron, this second catoptron and the 3rd catoptron, images in this photovoltaic sensing element through this lens focus.
2. optical module as claimed in claim 1 is characterized in that, also comprises a guide member, and this first carrier, this second carrier and the 3rd carrier are to couple with this guide member respectively, and can move on this guide member respectively.
3. optical module as claimed in claim 1 is characterized in that, also comprises a fixture, and this fixture makes the distance between this second carrier and the 3rd carrier keep fixed value in scanning process in order to connect this second carrier and the 3rd carrier.
4. optical module as claimed in claim 1 is characterized in that, also comprises one the 4th catoptron, and the 4th catoptron is to be disposed on this first carrier, in order to reflection through this image light of this lens focus to this photovoltaic sensing element.
5. optical module as claimed in claim 1 is characterized in that, also comprises one the 5th catoptron and one the 6th catoptron, is the different both sides that are disposed at this first carrier respectively, in order to reflection through this image light of this lens focus to this photovoltaic sensing element.
6. optical module as claimed in claim 1 is characterized in that this photovoltaic sensing element is a charge coupled cell.
7. optical module as claimed in claim 1 is characterized in that, this photovoltaic sensing element is the complementary metal oxide semiconductor (CMOS) sensor.
8. scanner in order to scan a file to be scanned, comprising:
One has the movably optical module of catoptron, and it comprises:
One first carrier has one first catoptron, lens and a photovoltaic sensing element, and this first carrier is to move along the one scan direction, with this file to be scanned of scanning;
One second carrier has one second catoptron, and this second carrier is to relatively move along this direction of scanning and the generation of this first carrier; And
One the 3rd carrier has one the 3rd catoptron, and the 3rd carrier is to relatively move along this direction of scanning and the generation of this first carrier;
Wherein, this first carrier is between this second carrier and the 3rd carrier, and the distance between this second carrier and the 3rd carrier is to keep fixed value in scanning process, one image light of this file to be scanned is in regular turn after the reflection of this first catoptron, this second catoptron and the 3rd catoptron, images in this photovoltaic sensing element through this lens focus.
9. scanner as claimed in claim 8 is characterized in that, also comprises a guide member, and this first carrier, this second carrier and the 3rd carrier are to couple with this guide member respectively, and can move on this guide member respectively.
10. scanner as claimed in claim 8 is characterized in that, also comprises a fixture, and this fixture makes the distance between this second carrier and the 3rd carrier keep fixed value in scanning process in order to connect this second carrier and the 3rd carrier.
11. scanner as claimed in claim 8 is characterized in that, also comprises one the 4th catoptron, the 4th catoptron is to be disposed on this first carrier, in order to reflection through this image light of this lens focus to this photovoltaic sensing element.
12. scanner as claimed in claim 8 is characterized in that, also comprises one the 5th catoptron and one the 6th catoptron, is the different both sides that are disposed at this first carrier respectively, in order to reflection through this image light of this lens focus to this photovoltaic sensing element.
13. scanner as claimed in claim 8 is characterized in that, this photovoltaic sensing element is a charge coupled cell.
14. scanner as claimed in claim 8 is characterized in that, this photovoltaic sensing element is the complementary metal oxide semiconductor (CMOS) sensor.
CNB031202551A 2003-03-06 2003-03-06 Optical components with movable mirrors Expired - Fee Related CN1324345C (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05260526A (en) * 1992-03-13 1993-10-08 A T R Tsushin Syst Kenkyusho:Kk Stereoscopic video display device
JPH10510640A (en) * 1994-12-07 1998-10-13 ショエフェリシュ、エウセルンク、アンシュタルト Electronic position search device
CN2298530Y (en) * 1997-02-13 1998-11-25 鸿友科技股份有限公司 Synchronous and different moving optical scanning device
CN2407344Y (en) * 2000-01-18 2000-11-22 深圳智同指纹技术有限公司 Optical scanner with movable reflecting mirror
CN1395216A (en) * 2001-07-06 2003-02-05 力捷电脑股份有限公司 Optical scanning apparatus capable of automatically position-finding and with image fetch device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05260526A (en) * 1992-03-13 1993-10-08 A T R Tsushin Syst Kenkyusho:Kk Stereoscopic video display device
JPH10510640A (en) * 1994-12-07 1998-10-13 ショエフェリシュ、エウセルンク、アンシュタルト Electronic position search device
CN2298530Y (en) * 1997-02-13 1998-11-25 鸿友科技股份有限公司 Synchronous and different moving optical scanning device
CN2407344Y (en) * 2000-01-18 2000-11-22 深圳智同指纹技术有限公司 Optical scanner with movable reflecting mirror
CN1395216A (en) * 2001-07-06 2003-02-05 力捷电脑股份有限公司 Optical scanning apparatus capable of automatically position-finding and with image fetch device

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