CN101957491A - Method for fixing lens group - Google Patents

Abstract

Translated fromChinese

本发明提供了一种透镜组的固定方法，适用于一接触式影像传感器模块。该固定方法包括：提供一基座以及一透镜组，其中该基座以及该透镜组之外壳为可超音波熔合之材质制成；于该基座内形成一凹槽；将该透镜组放置于该凹槽中；以及以超音波熔合该透镜组以及该凹槽之至少一交接处，以使该透镜组固定于该凹槽中。

The present invention provides a method for fixing a lens group, which is applicable to a contact image sensor module. The fixing method includes: providing a base and a lens group, wherein the base and the outer shell of the lens group are made of materials that can be ultrasonically fused; forming a groove in the base; placing the lens group in the groove; and ultrasonically fusing at least one intersection of the lens group and the groove so that the lens group is fixed in the groove.

Description

Translated fromChinese

透镜组的固定方法Fixing method of lens group

【技术领域】【Technical field】

本发明涉及固定方法，特别是有关于一种接触式影像传感器(contact image sensor，CIS)模块之透镜组的固定方法。The invention relates to a fixing method, in particular to a fixing method of a lens group of a contact image sensor (CIS) module.

【背景技术】【Background technique】

现今扫描装置多以接触式影像传感器(contact image sensor，CIS)模块作为扫描时的感测组件。接触式影像传感器模块可应用于扫描仪、传真机、多功能事务机等光学设备。Nowadays, most scanning devices use a contact image sensor (CIS) module as a sensing component during scanning. Contact image sensor modules can be applied to optical devices such as scanners, fax machines, and multi-function business machines.

请参阅附图1，为现有技术之接触式影像传感器模块1之示意图。接触式影像传感器模块1包括一基座10、一透镜组12、一光源14以及一传感器组(未图示)位于透镜组12下方。透镜组12与基座10采用点胶的方法接合固定。如附图1所示，基座10具有若干个沟槽16。在透镜组12放置于基座10内之后，将黏胶涂布于这些沟槽16中以完成透镜组12与基座10的固定。然而以黏胶固定的方法容易有涂布不均的情况，而且黏胶容易污染到透镜组12，导致透镜组12的功能受到影响。Please refer to FIG. 1 , which is a schematic diagram of a contactimage sensor module 1 in the prior art. The contactimage sensor module 1 includes abase 10 , alens group 12 , alight source 14 and a sensor group (not shown) located below thelens group 12 . Thelens group 12 is bonded and fixed to thebase 10 by dispensing glue. As shown in FIG. 1 , thebase 10 hasseveral grooves 16 . After thelens group 12 is placed in thebase 10 , glue is applied in thegrooves 16 to complete the fixing of thelens group 12 and thebase 10 . However, the method of fixing with glue is prone to uneven coating, and the glue is easy to contaminate thelens group 12 , which will affect the function of thelens group 12 .

请参阅附图2，为另一现有技术之接触式影像传感器模块2之示意图。虽然接触式影像传感器模块2与附图1所示之接触式影像传感器模块1在结构上略有不同，其主要组件与附图1所示之接触式影像传感器模块1相同，包括基座10、透镜组12、光源14以及传感器组(未图示)位于透镜组12下方。如附图2所示，基座具有若干个卡勾20用以将透镜组12固定于基座10内。然而以卡勾20固定的方法会有晃动的问题，导致透镜组12的固定效果不佳。Please refer to FIG. 2 , which is a schematic diagram of another conventional contactimage sensor module 2 . Although the contactimage sensor module 2 is slightly different in structure from the contactimage sensor module 1 shown in the accompanyingdrawing 1, its main components are the same as the contactimage sensor module 1 shown in the accompanyingdrawing 1, including abase 10, Thelens group 12 , thelight source 14 and the sensor group (not shown) are located below thelens group 12 . As shown in FIG. 2 , the base hasseveral hooks 20 for fixing thelens group 12 in thebase 10 . However, the method of fixing with thehook 20 has the problem of shaking, which leads to poor fixing effect of thelens group 12 .

因此需要对上述现有技术之透镜组12固定方法的缺点提出解决方法。Therefore, it is necessary to propose a solution to the shortcomings of the above-mentioned method for fixing thelens group 12 in the prior art.

【发明内容】【Content of invention】

有鉴于上述现有技术之问题，本发明之目的就是在提供一种透镜组的固定方法，其提供快速且无污染的方式来固定透镜组。In view of the above-mentioned problems in the prior art, an object of the present invention is to provide a method for fixing a lens group, which provides a fast and non-polluting way to fix the lens group.

根据本发明之透镜组的固定方法，适用于一接触式影像传感器模块，该固定方法包括：The fixing method of the lens group according to the present invention is suitable for a contact image sensor module, and the fixing method includes:

提供一基座以及一透镜组，其中该基座以及该透镜组之外壳为可超音波熔合之材质制成；Provide a base and a lens group, wherein the housing of the base and the lens group is made of materials that can be welded by ultrasonic wave;

于该基座内形成一凹槽；forming a recess in the base;

将该透镜组放置于该凹槽中；以及placing the lens group in the groove; and

以超音波熔合该透镜组以及该凹槽之至少一交接处，以使该透镜组固定于该凹槽中。At least one junction of the lens group and the groove is fused by ultrasonic wave, so that the lens group is fixed in the groove.

本发明之透镜组的固定方法与现有技术相比，具有下列优点：(1)使用超音波熔合的方式固定该透镜组，不会有使用黏胶涂布不均及污染透镜组的问题。(2)使用超音波熔合的方式固定该透镜组，不会有以卡勾固定时容易晃动的情况发生。(3)使用超音波熔合的方式固定透镜组不会产生废料，后续处理更为方便且环保。(4)使用超音波熔合的方式固定透镜组加工快速，可缩短接触式影像传感器模块的制造时程。Compared with the prior art, the fixing method of the lens group of the present invention has the following advantages: (1) The lens group is fixed by means of ultrasonic fusion, and there is no problem of uneven coating of glue and contamination of the lens group. (2) The lens group is fixed by means of ultrasonic fusion, so that there will be no easy shaking when the hook is used to fix it. (3) The use of ultrasonic fusion to fix the lens group will not generate waste, and subsequent processing is more convenient and environmentally friendly. (4) The process of fixing the lens group by ultrasonic fusion is fast, which can shorten the manufacturing time of the contact image sensor module.

【附图说明】【Description of drawings】

附图1为现有技术之接触式影像传感器模块之示意图；Accompanying drawing 1 is the schematic diagram of the contact image sensor module of prior art;

附图2为另一现有技术之接触式影像传感器模块之示意图；Accompanying drawing 2 is the schematic diagram of another contact image sensor module of prior art;

附图3为根据本发明透镜组的固定方法流程图；以及Accompanying drawing 3 is the flow chart of the fixing method of lens group according to the present invention; And

附图4为示根据本发明透镜组的固定方法所制成之接触式影像传感器模块。Accompanyingdrawing 4 shows the contact image sensor module made according to the fixing method of the lens group of the present invention.

【具体实施方式】【Detailed ways】

请同时参阅附图3以及附图4，其中附图3为根据本发明透镜组的固定方法流程图，其适用于如附图4所示之接触式影像传感器模块4。该固定方法包括下列步骤：Please refer to FIG. 3 and FIG. 4 at the same time, wherein FIG. 3 is a flowchart of a method for fixing a lens group according to the present invention, which is applicable to the contactimage sensor module 4 shown in FIG. 4 . This fixing method comprises the following steps:

步骤S300中，提供一基座10以及一透镜组12，其中该透镜组12以塑料射出成型的方式制成。In step S300, abase 10 and alens group 12 are provided, wherein thelens group 12 is made by plastic injection molding.

该透镜组12之外壳为可超音波熔合之材质制成，可超音波熔合之材质例如丙烯睛-丁二烯-苯乙烯共聚合物(Acrylonitrile-Butadene-Styrene，ABS)、缩醛树脂(ACETAL)、压克力(Acrylic Resin，PMMA)、聚亚苯氧化物(NORYL)、尼龙(NYLON)、聚碳酸酯(Polycarbonate，PC)、聚乙烯(Polyethylene，PE)、聚丙烯(Polypropylene，PP)、聚苯乙烯(PS)、聚堸(POLYSULFONE)、聚氯乙烯(Polyvinyl Chloride，PVC)、苯乙烯丙烯睛(SAN)、聚酯酸脂(POLYSTER)以及聚丙烯睛-奥龙(XT-POLYMER)所构成群组中之至少一者所制成。The shell of thelens group 12 is made of a material that can be welded by ultrasonic wave, such as acrylonitrile-butadiene-styrene copolymer (Acrylonitrile-Butadiene-Styrene, ABS), acetal resin (ACETAL ), acrylic (Acrylic Resin, PMMA), polyphenylene oxide (NORYL), nylon (NYLON), polycarbonate (Polycarbonate, PC), polyethylene (Polyethylene, PE), polypropylene (Polypropylene, PP) , PS, POLYSULFONE, Polyvinyl Chloride, PVC, SAN, POLYSTER and XT-POLYMER ) made by at least one of the group consisting of.

该基座10为可超音波熔合之材质制成，例如丙烯睛-丁二烯-苯乙烯共聚合物(Acrylonitrile-Butadene-Styrene，ABS)、缩醛树脂(ACETAL)、压克力(Acrylic Resin，PMMA)、聚亚苯氧化物(NOORYL)、尼龙(NYLON)、聚碳酸酯(Polycarbonate，PC)、聚乙烯(Polyethylene，PE)、聚丙烯(Polypropylene，PP)、聚苯乙烯(PS)、聚堸(POLYSULFONE)、聚氯乙烯(Polyvinyl Chloride，PVC)、苯乙烯丙烯睛(SAN)、聚酯酸脂(POLYSTER)以及聚丙烯睛-奥龙(XT-POLYMER)所构成群组中之至少一者所制成。Thebase 10 is made of materials that can be ultrasonically fused, such as acrylonitrile-butadiene-styrene copolymer (Acrylonitrile-Butadene-Styrene, ABS), acetal resin (ACETAL), acrylic (Acrylic Resin) , PMMA), polyphenylene oxide (NOORYL), nylon (NYLON), polycarbonate (Polycarbonate, PC), polyethylene (Polyethylene, PE), polypropylene (Polypropylene, PP), polystyrene (PS), At least one of the group consisting of POLYSULFONE, Polyvinyl Chloride (PVC), Styrene Acrylonitrile (SAN), Polyester (POLYSTER) and Polyacrylonitrile-Auron (XT-POLYMER) made by one.

步骤S310中，于该基座10开设一凹槽40。由于该凹槽40之目的在于容置该透镜组12，因此该凹槽40之尺寸至少需大于或等于该透镜组12之尺寸。In step S310 , agroove 40 is opened on thebase 10 . Since the purpose of thegroove 40 is to accommodate thelens group 12 , the size of thegroove 40 must at least be greater than or equal to the size of thelens group 12 .

步骤S320中，将该透镜组12放置于该凹槽40中。In step S320 , place thelens group 12 in thegroove 40 .

步骤S330中，以超音波熔合该透镜组12以及该凹槽40之至少一交接处42，以使该透镜组12固定于该凹槽40中。也就是说，对该透镜组12以及该凹槽40的交接处42实施高频率的摩擦，使分子急速产生热量，当热量足够熔化该透镜组12以及该凹槽40的交接处时，停止超音波的发振，该透镜组12以及该凹槽40的交接处会熔融并且固化，藉此完成该透镜组12以及该基座10的固定。In step S330 , at least onejunction 42 of thelens group 12 and thegroove 40 is fused by ultrasonic waves, so that thelens group 12 is fixed in thegroove 40 . That is to say, the high-frequency friction is implemented at thejunction 42 of thelens group 12 and thegroove 40, so that the molecules generate heat rapidly, and when the heat is enough to melt the junction of thelens group 12 and thegroove 40, stop exceeding With the vibration of the sound waves, the intersection of thelens group 12 and thegroove 40 will melt and solidify, thereby completing the fixing of thelens group 12 and thebase 10 .

于步骤S330超音波熔合的步骤中，首先需预先设定一熔合时间以及一熔合范围。一较佳实施例中，超音波熔合时间介于0.1至3秒，而超音波熔合范围至少大于0.2平方毫米，且该熔合范围需同时涵盖该透镜组12以及该基座10。接着根据该预先设定的熔合时间以及该熔合范围熔合该透镜组12以及该凹槽40之该至少一交接处42，其中超音波熔合的操作频率介于10000至40000赫兹。In step S330 of ultrasonic fusion, a fusion time and a fusion range need to be preset. In a preferred embodiment, the ultrasonic fusion time is between 0.1 and 3 seconds, and the ultrasonic fusion range is at least larger than 0.2 square millimeters, and the fusion range needs to cover thelens group 12 and thebase 10 at the same time. Then, the at least onejunction 42 between thelens group 12 and thegroove 40 is fused according to the preset fusing time and the fusing range, wherein the operating frequency of the ultrasonic fusing is between 10000 and 40000 Hz.

以附图4为例，于该透镜组12与该基座10的六个交接处42实施超音波熔合，该六个交接处42对称地位于该透镜组12上下两侧。于其它实施例中，实施超音波熔合的交接处42并无数量限制，且其位置也可为不对称的方式，例如于透镜组12上侧二个交接处及下侧一个交接处实施超音波熔合。Taking FIG. 4 as an example, ultrasonic fusion is performed at the sixjunctions 42 between thelens group 12 and thebase 10 , and the sixjunctions 42 are symmetrically located on the upper and lower sides of thelens group 12 . In other embodiments, the number ofjoints 42 for ultrasonic fusion is not limited, and their positions can also be asymmetrical, for example, two joints on the upper side of thelens group 12 and one joint on the lower side are used to implement ultrasonic fusion. Fusion.

本发明之透镜组12的固定方法与习知技术相比，具有下列优点：(1)使用超音波熔合的方式固定该透镜组12，不会有使用黏胶涂布不均及污染透镜组12的问题。(2)使用超音波熔合的方式固定该透镜组12，不会有以卡勾固定时容易晃动的情况发生。(3)使用超音波熔合的方式固定透镜组12不会产生废料，后续处理更为方便且环保。(4)使用超音波熔合的方式固定透镜组12加工快速，可缩短接触式影像传感器模块4的制造时程。Compared with the prior art, the fixing method of thelens group 12 of the present invention has the following advantages: (1) Thelens group 12 is fixed by means of ultrasonic fusion, and there will be no uneven coating of glue and contamination of thelens group 12 The problem. (2) Thelens group 12 is fixed by means of ultrasonic fusion, so that there will be no easy shaking when the hook is used for fixing. (3) The use of ultrasonic fusion to fix thelens group 12 will not produce waste materials, and subsequent processing is more convenient and environmentally friendly. (4) Using ultrasonic fusion to fix thelens group 12 can be processed quickly, which can shorten the manufacturing time of the contactimage sensor module 4 .

以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications should also be considered Be the protection scope of the present invention.

Claims (10)

1. the fixing means of a lens combination is applicable to a contact image sensor module, it is characterized in that: this fixing means comprises:

One pedestal and a lens combination are provided, but wherein outside this pedestal and this lens combination shell be that the material of ultrasonic fusion is made;

In this pedestal, form a groove;

This lens combination is positioned in this groove; And

Fuse at least one junction of this lens combination and this groove with ultrasonic, so that this lens combination is fixed in this groove.

2. fixing means according to claim 1 is characterized in that, the size of this groove is at least more than or equal to the size of this lens combination.

3. fixing means according to claim 1 is characterized in that this lens combination is made in the mode of plastics injection molding.

4. fixing means according to claim 1, it is characterized in that to be constituted in the group at least one by acrylonitrile-butadiene-styrene copolymer compound, acetal resin, acryl, poly-inferior phenoxide, nylon, polycarbonate, tygon, polypropylene, polystyrene (PS), poly-Feng, Polyvinylchloride, styrene-acrylonitrile copolymer eyeball (SAN), polyester acid fat and polyacrylonitrile-Ao Long made for shell outside this lens combination.

5. fixing means according to claim 1, it is characterized in that it is made that this pedestal system is constituted in the group at least one by acrylonitrile-butadiene-styrene copolymer compound, acetal resin, acryl, poly-inferior phenoxide, nylon, polycarbonate, tygon, polypropylene, polystyrene (PS), poly-Feng, Polyvinylchloride, styrene-acrylonitrile copolymer eyeball (SAN), polyester acid fat and polyacrylonitrile-Ao Long.

6. fixing means according to claim 1 is characterized in that, fuses with ultrasonic in the step of at least one junction of this lens combination and this groove to comprise:

Set a fusion time and a fusion scope; And

According to this fusion time and this at least one junction of should the fusion scope fusing this lens combination and this groove.

7. fixing means according to claim 6 is characterized in that, this fusion time was between 0.1 to 3 second.

8. fixing means according to claim 6 is characterized in that, this fusion scope is at least greater than 0.2 square millimeter.

9. fixing means according to claim 6 is characterized in that, this fusion scope contains and contains this lens combination and this pedestal simultaneously.

10. fixing means according to claim 1 is characterized in that, the operating frequency of this ultrasonic fusion is between 10000 to 40000 hertz.

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