CN1196005C - 一种光学组件 - Google Patents

一种光学组件 Download PDF

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Publication number
CN1196005C
CN1196005C CNB018101798A CN01810179A CN1196005C CN 1196005 C CN1196005 C CN 1196005C CN B018101798 A CNB018101798 A CN B018101798A CN 01810179 A CN01810179 A CN 01810179A CN 1196005 C CN1196005 C CN 1196005C
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web member
optical
guide
housing
optical module
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Expired - Fee Related
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CNB018101798A
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CN1430733A (zh
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C·丁卡
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ERISSON
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Marconi Communications Ltd
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/444—Systems or boxes with surplus lengths
    • G02B6/4453—Cassettes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/444—Systems or boxes with surplus lengths
    • G02B6/44528—Patch-cords; Connector arrangements in the system or in the box
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/444—Systems or boxes with surplus lengths
    • G02B6/4452—Distribution frames

Abstract

一种光学组件具有多个端接到连接件(3)的光学纤维(7)，该连接件与一段光学纤维(11-18)连接，该段光学纤维又连接到安装在壳体(1)上的光学后平面(4)。连接件(3)希望能够从壳体(1)抽出以便进行检查。为光学纤维(11-18)设置了多个可移动的导向件(26)来形成多个光径，当连接件从壳体抽出时，光径长度仍保持不变。

Description

一种光学组件
技术领域
本发明涉及一种光学组件，并涉及光学纤维终端以能够进行目视检查方式进行的固定。光学纤维用于传输数据和电讯及类似的信号，大量的单个光学纤维要求端接到设备上，这些设备与开关或其他节点相连，在这些节点光学信息进行处理，即通过选定路线到达目的地；与其他的信息通过多种形式进行结合，或将信息从一个光学载波波长变换到另一个。
背景技术
光学连接容纳在外壳之中，实际上需要将许多光学连接保护在共用外壳内。在光学系统发生故障的情况下，或进行定期检修时，非常希望光学连接能够通过方便检修和检查的方式定位。如果光学连接是固定在设备外壳之内，大的箱柜，或支架上，这将是很困难的。
发明内容
本发明打算提供一种改进的光学组件。
根据本发明，光学组件包括多个互相实体固定的连接件，容纳连接件的壳体，连接件可从壳体抽出进行检查；多个光学纤维，端接到各自的一个光学连接件；和多个可移动的导向件，所述导向件形成多个光径，对于每个光学纤维而言每个光径具有相同的光径长度，导向件互相间有固定的间隔和方位，可相对所述连接件和所述壳体移动，当连接件从所述壳体抽出时，所述光径长度可保持不变。
多个可移动的导向件最好当连接件从所述壳体抽出时可沿弯曲路线移动，设置弯曲路线是为了所述光径长度保持不变。
弯曲路线最好是近似抛物线的弧线。在抛物线的足够短的弧上具有很小的弯曲，弧线近似于圆弧线。实际上，等半径弧可满足要求，只要弧的长度短于半径。
附图说明
通过示例并参考附图进一步对本发明加以介绍。
图1显示了根据本发明的光学组件，其中光学连接件位于壳体内；
图2显示了光学连接件处于抽出位置的光学组件。
具体实施方式
参考图1，图中显示了构成通讯设备一部分的光学组件，包括无体1，壳体设有支承了八个光学连接件3的前表面2，形成了光学后平面的后表面4，两个端面5，6，以及顶和底表面(未显示)。如果组件成为大型设备的一部分，这些表面中的一部分可以省略。
像数据或电话这样的信息通过光学纤维7输入到各个连接件3或从各个连接件输出。各光学纤维将连接到其他的通讯设备，实际上，这些纤维7可以长达数公里。纤维7端接到连接件3，连接件固定在壳体前面容易接近的位置。光学后平面4包括电-光元件或光-光元件，可允许光学信号通过转换、多路复用或类似的功能进行处理。设置了纤维11-18以连接各个连接件3和光学后平面4。虽然各光纤11-18长度很短，可通过另外的光学连接件(未显示)光学连接到光学后平面4。一般地光纤11-18远离连接件3的端部构成光学后平面4的一体部分，必要时光纤在后平面延伸和端接到适当的光学元件。因为光纤11-18形成了与光学后平面的整体连接，更换光纤将成为代价很高和困难的任务。
共用板19固定到前表面2，并支承固定到共用板19的第一组8个弯曲导向件20。共用板19设置了两个弯曲狭槽21，22，狭槽中安装了连接到另一块板25的销23，24，板25支承了第二组8个弯曲导向件26。销23和24可沿各狭槽21，22滑动。
第三组弯曲导向件27固定在壳体1上，以及后平面4。连接销23，24的一对刚性臂28，29可枢轴转动地固定到壳体1的连接点30，31。
三组弯曲导向件形成了光纤11-18的光径，从前表面2上的连接件3通到光学后平面4。
为了对各个光学连接件3进行目视检查，固定了连接件的前表面2可以从壳体1抽出。连接到前表面的共用板19可滑动地安装在壳体，所以共用板19可部分抽出，如图2所示。现在连接件3在壳体1中没有阻挡了，所以能够容易地核对和检查错误。
很清楚，当前表面和连接件从壳体抽出时，固定到共用板19的导向件20与前表面2和连接件3一起移动。
根据图2，可以看到连接件3从壳体1中抽出，销23和24受到可枢轴转动地固定的臂28，29的拘束，沿狭槽21，22滑动，因此第二组导向件26移动以便改变光学纤维11-18的路线。
狭槽21，22是弯的以便当连接件3和共用板19从壳体2抽出时保证光学纤维的长度仍基本不变。
狭槽21，22具有抛物线的短弧线的形式，但是当狭槽很短时其近似于具有大半径的圆弧。
应当知道第二组导向件26相对第一和第三组导向件移动，第二组的位置由狭槽21，22和臂28，29决定。通过选择相对狭槽21，22形状的臂28，29的长度，可以实现基本上恒定长度的光径。重要的是，由于光纤是易碎和容易损坏的，更换的代价很高。

Claims (8)

1.一种光学组件，包括多个互相实体固定的光学连接件，一容置所述连接件的壳体，所述连接件可从所述壳体抽出以便进行检查；多个光学纤维，各自端接到各自的光学连接件；和多个可移动的导向件，所述导向件形成多个光径，对于每个光学纤维而言每个光径具有相同的光径长度，所述导向件互相间有固定的间隔和方位，可相对所述连接件和所述壳体移动，当所述连接件从所述壳体抽出时，所述光径长度可保持不变。
2.根据权利要求1所述的光学组件，其特征在于，当所述连接件从所述壳体抽出时，所述多个可移动的导向件可沿弯曲路线移动，设置弯曲路线是为了保持所述光径长度不变。
3.根据权利要求2所述的光学组件，其特征在于，所述弯曲路线为一抛物线的弧线。
4.根据权利要求2所述的光学组件，其特征在于，所述弯曲路线为一圆弧线。
5.根据权利要求2，3或4中任一项所述的光学组件，其特征在于，所述多个导向件固定在共用板，所述共用板通过多个可枢轴转动地进行固定的臂连接到所述壳体。
6.根据权利要求5所述的光学组件，其特征在于，所述多个光学连接件固定在所述共用板，所述共用板设置了两个狭槽，各狭槽形成了所述弯曲路线，可使连接到所述共用板的所述臂的端部可沿所述狭槽滑动。
7.根据权利要求6所述的光学组件，其特征在于，第一组弯曲导向件固定在靠近所述连接件的固定位置，以形成所述光径一部分。
8.根据权利要求7所述的光学组件，其特征在于，所述多个可移动的导向件形成了位于第一组和第三组导向件之间的第二组弯曲导向件，第三组导向件相对所述壳体固定在固定位置，所述第一、第二和第三组导向件形成所述光径。
CNB018101798A 2000-05-31 2001-04-27 一种光学组件 Expired - Fee Related CN1196005C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO2000A000505 2000-05-31
IT2000TO000505A IT1320488B1 (it) 2000-05-31 2000-05-31 Complesso ottico.

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CN1430733A CN1430733A (zh) 2003-07-16
CN1196005C true CN1196005C (zh) 2005-04-06

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US (1) US6763171B2 (zh)
EP (1) EP1287395B1 (zh)
JP (1) JP2003535369A (zh)
CN (1) CN1196005C (zh)
AT (1) ATE352794T1 (zh)
AU (1) AU2001252498A1 (zh)
CA (1) CA2407860A1 (zh)
DE (1) DE60126273T2 (zh)
IT (1) IT1320488B1 (zh)
WO (1) WO2001092927A2 (zh)

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Publication number Publication date
WO2001092927A2 (en) 2001-12-06
JP2003535369A (ja) 2003-11-25
US20030169993A1 (en) 2003-09-11
ITTO20000505A0 (it) 2000-05-31
DE60126273D1 (de) 2007-03-15
CA2407860A1 (en) 2001-12-06
DE60126273T2 (de) 2007-10-31
ATE352794T1 (de) 2007-02-15
EP1287395B1 (en) 2007-01-24
EP1287395A2 (en) 2003-03-05
CN1430733A (zh) 2003-07-16
US6763171B2 (en) 2004-07-13
AU2001252498A1 (en) 2001-12-11
WO2001092927A3 (en) 2002-04-11
ITTO20000505A1 (it) 2001-12-01
IT1320488B1 (it) 2003-12-10

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