1247647 玖、發明說明： 【發明所屬之技術領域】 本發明提供一種調整機構，尤指一種毋須輔助治具即可微調光 學元件位置之調整機構。 【先前技術】 光學元件在安裝於光學設備中時，必須微調其光轴中心以 及聚焦或成像位置，所以光學元件的安裝架上通常都具有調整機 構。習知的光學元件調整機構係利用定位螺絲與回位彈箐來固 定，調整時必須藉助調整治具來微調光學元件與安裝架的相對位 置。 圖一為一習知的光學元件安裝機構10。安裝機構10分為第 一安裝架12以及第二安裝架14，光學元件18安置於第一安裝架 12上，而第一安裝架12則安置於第二安裝架14上。第一安裝架 12與第二安裝架14可以沿著預定的方向相對移動，並藉由定位螺 絲16以及回位彈簧20來固定。當調整光學元件位置時，轉動定 位螺絲16可以拉扯或是放鬆第一安裝架12與第二安裝架14，改 變其相對位置，而回位彈簣20則將第一安裝架12與第二安裝架 14缚緊。 1247647 然而，此種習知做法卻存在有一些缺點。使用定位螺絲16 來調整相對位置，需要針對安裝機構10採用特製的定位螺絲16， 其設計複雜且成本高昂，而使用回位彈簧20來帶動安裝架則有彈 性疲乏以及可靠度的問題，至於調整時使用的調整治具則需要額 外的治具製作費用，增加成本支出。再者，習知安裝機構10亦較 佔體積。 【發明内容】 因此本發明之主要目的在於提供一種無須輔助治具即可微調 光學元件位置之調整機構，其具有良好的精密度及可靠度，以解 決上述習知的問題。 根據本發明之申請專利範圍，係揭露一種調整機構，用來微調 一光學元件之安裝位置。該調整機構包含有：一第一安裝架，用 來安置該光學元件，該第一安裝架上具有一第一對位孔、一第二 對位孔以及一第三對位孔；以及一第二安裝架，用來安置該第一 安裝架，使該第一安裝架與該第二安裝架可沿一第一軸向相對移 動，該第二安裝架上具有一第一調整孔、一第二調整孔以及一第 三調整孔。其中，當該第一安裝架安置於該第二安裝架上時，該 1247647 些對位孔與該些調整孔之開口位置部分重疊，可藉由改變該些對-位孔與該些調整孔之相對位置，來調整該第一安裝架與該第二安 裝架於該第一軸向上之相對位置。 根據本發明之申請專利範圍，另揭露一種調整機構，用來微調 一光學元件之安裝位置，該調整機構包含有：一第一安裝架，用 來安置該光學元件，該第一安裝架上具有複數個對位孔；以及一 第二安裝架，用來安置該第一安裝架，使該第一安裝架與該第二 安裝架可沿一第一軸向相對移動，該第二安裝架上具有複數個調 整孔。其中，當該第一安裝架安置於該第二安裝架上時，該些對 位孔與該些調整孔之開口位置部分重疊，可用來調整該第一安裝 架與該第二安裝架於該第一軸向上之相對位置。 【實施方式】 請參考圖二及圖三，圖二為本發明之調整機構30的正面構 造示意圖，圖三則是其背面構造示意圖。調整機構30可大致分成 第一安裝架32與第二安裝架34二個部分，其中第一安裝架32上 安置有一光學元件36。光學元件36可以是任何一種光學透鏡，例 如凸透鏡、凹透鏡或是平面鏡。第一安裝架32與第二安裝架34 藉由夾具38互相貼合，而在第一安裝架32與第二安裝架34貼合 1247647 時’可在第一安骏架32上製作至少一個導溝40，並在第二安裝架， 34上製作對應的突出物42，用來使第一安裝架32與第二安裝架 34僅能於固定方向相對位移。 第一安裝架32上具有三個不呈直線棑列的第一對位孔 44a、第二對位孔44b、第三對位孔44c，而第二安裝架上則具有 二個呈直線排列的第一調整孔46a、第二調整孔46b、第三調整孔 46c。當第一安裝架32與第二安裝架34貼合時，該些對位孔44a、 44b、44c與該些調整孔46a、46b、46c之開口位置有部分重疊， 可以藉由移動該些對位孔44a、44b、44c與該些調整孔46a、46b、 46c的開口位置，改變重疊區域，來調整該第一安裝架32與該第 二安裝架34的相對位置。當然，在設計調整機構3〇時，亦可以 使三個對位孔呈直線排列，而三個調整孔不呈直線排列，只要二 者貼合時呈現部分重疊即可。 以下藉由圖四至圖六說明移動對位孔44a、44b、44c與調 整孔46a ' 46b、46c的開口位置時，第一安裝架32與第二安裝架 34的相對位置之變化。當由調整機構3〇的背面（即圖三所示之方 向）觀察對位孔44a、44b、44c與調整孔46a、46b、46c時，其相 關位置如圖四至圖六所示，其中實線代表調整孔46a、46b、46c， 而虛線則代表對位孔44a、44b、44c。圖四所示的情況係將對位孔 8 1247647 44b調至與調整孔46b完全重疊，而對位孔44a、44c與調整孔46a、-46c則僅有部分重疊，此時第一安裝架32與該第二安裝架34的相 對位置係位於可移動範圍的正中央。 逐漸改變對位孔44a、44b、44c與調整孔46a、46b、46c 重疊區域的大小，可以相對調整第一安裝架32與第二安裝架34 的相對位置。當對位孔44c與調整孔46c的重疊區域愈來愈大， 而對位孔44a、44b與調整孔46a、46b的重疊區域愈來愈小時， 代表第一安裝架32相對向下移動，或是第二安裝架34相對向上 移動。當對位孔44c被調至與調整孔46c完全重疊時，此時到達 可移動範圍的極限，如圖五所示。反之，若改變對位孔44a、44b、 44c與調整孔46a、46b、46c的位置，使對位孔44a與調整孔46a 的重疊區域愈來愈大，而對位孔44b、44c與調整孔46b、46c的 重疊區域愈來愈小時，代表第一安裝架32相對向上移動，或是第 二安裴架34相對向下移動。當對位孔44a被調至與調整孔46a完 全重疊時，此時則到達可移動範圍的另一方向極限，如圖六所示。 改變對位孔44a、44b、44c與調整孔46a、46b、46c的位 置時，可以使用適當大小的螺絲起子或是任何工具，***對位孔 44a、44b、44c與調整孔46a、46b、46c的缝隙中，然後轉動或是 推動對位孔44a、44b、44c與調整孔46a、46b、46c。此種方法不 1247647 需特別的治具，可以使用任何合適大小的現成工具，減少製造調-整治具的成本支出◦而對位孔44a、44b、44c與調整孔46a、46b、 46c的形狀，亦不侷限於矩形構造，其他例如圓形或是三角形等等 的形狀，亦可達到此發明的目的。 當調整完第一安裝架32與第二安裝架34的相對位置後， 將固定螺絲48鎖緊，避免第一安裝架32與第二安裝架34受到震 動時移位。此外，本發明的第二安裝架34可以再安裝至一第三安 裝架（未繪示）上，第二安裝架34與第三安裝架可以沿另一個軸向 相對移動。依本發明此架構繼續推衍，則可延伸應用於多軸向的 調整機構。此外對位孔與調整孔的數目，亦不限於三個，上文所 述僅為一較佳實施例，二個或是三個以上的對位孔與調整孔亦適 用於本發明。 相較於習知光學元件的調整機構，本發明具有可靠度佳、調整 容易、設計簡單以及成本降低的特點，可有效改良習知調整機構 的複雜構造。 以上所述僅為本發明之較佳實施例，凡依本發明申請專利範圍 所做之均等變化與修飾，皆應屬本發明專利之涵蓋範圍。 10 1247647 【圖式簡单說明】 圖式之簡單說明 圖一為習知的光學元件安裝機構之示意圖。 圖二為本發明光學元件安裝機構之正面示意圖。 圖三為本發明光學元件安裝機構之背面示意圖。 圖四至圖六為本發明對位孔與調整孔的開口位置變化之示意 圖。 圖式之符號說明 10 安裝機構 12 第一安裝架 14 第二安裝架 16 定位螺絲 18 光學元件 20 回位彈簧 30 安裝機構 32 第一安裝架 34 第二安裝架 36 光學元件 38 夾具 40 導溝 42 突出物 44 對位孔 46 調整孔 48 固定螺絲1247647 发明Invention Description: [Technical Field] The present invention provides an adjustment mechanism, and more particularly, an adjustment mechanism for finely adjusting the position of an optical component without the need for an auxiliary fixture. [Prior Art] When an optical component is mounted in an optical device, its optical axis center and focus or imaging position must be fine-tuned, so that the mounting member of the optical component usually has an adjustment mechanism. Conventional optical component adjustment mechanisms are fixed by means of a set screw and a return spring. The adjustment fixture must be used to fine tune the relative position of the optical component to the mounting bracket. 1 is a conventional optical component mounting mechanism 10. The mounting mechanism 10 is divided into a first mounting bracket 12 and a second mounting bracket 14, with the optical component 18 disposed on the first mounting bracket 12 and the first mounting bracket 12 disposed on the second mounting bracket 14. The first mounting frame 12 and the second mounting bracket 14 are relatively movable in a predetermined direction and are fixed by the positioning screw 16 and the return spring 20. When adjusting the position of the optical component, the rotating set screw 16 can pull or loosen the first mounting frame 12 and the second mounting frame 14 to change their relative positions, and the returning magazine 20 will mount the first mounting frame 12 and the second mounting. The frame 14 is fastened. 1247647 However, there are some shortcomings in this practice. The use of the set screw 16 to adjust the relative position requires the use of a special set screw 16 for the mounting mechanism 10, which is complicated in design and costly, and the use of the return spring 20 to drive the mount has elastic fatigue and reliability problems. The adjustment jig used at the time requires additional jig manufacturing costs and increases the cost. Moreover, the conventional mounting mechanism 10 is also relatively bulky. SUMMARY OF THE INVENTION It is therefore a primary object of the present invention to provide an adjustment mechanism for fine-tuning the position of an optical component without the need for an auxiliary fixture, which has good precision and reliability to solve the above-mentioned conventional problems. According to the scope of the invention, an adjustment mechanism is disclosed for fine-tuning the mounting position of an optical component. The adjusting mechanism includes: a first mounting bracket for arranging the optical component, the first mounting bracket has a first alignment hole, a second alignment hole and a third alignment hole; and a first a mounting bracket for locating the first mounting bracket, wherein the first mounting bracket and the second mounting bracket are movable relative to each other in a first axial direction, the second mounting bracket has a first adjusting hole and a first mounting bracket Two adjustment holes and a third adjustment hole. When the first mounting bracket is disposed on the second mounting bracket, the alignment holes of the 1247647 partially overlap with the opening positions of the adjusting holes, by changing the pair of the positioning holes and the adjusting holes The relative position of the first mounting bracket and the second mounting bracket in the first axial direction. According to the patent application scope of the present invention, an adjustment mechanism for finely adjusting an installation position of an optical component, the adjustment mechanism includes: a first mounting bracket for arranging the optical component, the first mounting bracket having a plurality of alignment holes; and a second mounting bracket for positioning the first mounting bracket, the first mounting bracket and the second mounting bracket being movable relative to each other along a first axial direction, the second mounting bracket There are a plurality of adjustment holes. When the first mounting bracket is disposed on the second mounting bracket, the alignment holes partially overlap the opening positions of the adjusting holes, and the first mounting bracket and the second mounting bracket may be adjusted The relative position in the first axial direction. [Embodiment] Please refer to FIG. 2 and FIG. 3, FIG. 2 is a schematic diagram showing the front structure of the adjusting mechanism 30 of the present invention, and FIG. 3 is a schematic view of the back structure. The adjustment mechanism 30 can be roughly divided into two parts, a first mounting bracket 32 and a second mounting bracket 34, wherein an optical component 36 is disposed on the first mounting bracket 32. Optical element 36 can be any type of optical lens, such as a convex lens, a concave lens, or a flat mirror. The first mounting frame 32 and the second mounting frame 34 are attached to each other by the clamp 38, and at least one guide can be made on the first security frame 32 when the first mounting frame 32 and the second mounting frame 34 are attached to the 1247647. The groove 40, and corresponding protrusions 42 are formed on the second mounting frame 34, for the first mounting frame 32 and the second mounting frame 34 to be relatively displaced only in a fixed direction. The first mounting frame 32 has three first alignment holes 44a, a second alignment hole 44b and a third alignment hole 44c which are not in a linear array, and the second mounting frame has two linear arrays. The first adjustment hole 46a, the second adjustment hole 46b, and the third adjustment hole 46c. When the first mounting bracket 32 is engaged with the second mounting bracket 34, the positioning holes 44a, 44b, and 44c partially overlap the opening positions of the adjusting holes 46a, 46b, and 46c, and the pair of holes can be moved by The positional positions of the first mounting bracket 32 and the second mounting bracket 34 are adjusted by changing the overlapping positions of the positioning holes 46a, 44b, and 44c and the opening positions of the adjusting holes 46a, 46b, and 46c. Of course, when designing the adjustment mechanism 3 ,, the three alignment holes can be arranged in a straight line, and the three adjustment holes are not arranged in a straight line, as long as the two parts are partially overlapped. The change in the relative positions of the first mount 32 and the second mount 34 when the position of the opening of the alignment holes 44a, 44b, 44c and the adjustment holes 46a' 46b, 46c is moved will be described below with reference to Figs. When the alignment holes 44a, 44b, 44c and the adjustment holes 46a, 46b, 46c are viewed from the back surface of the adjustment mechanism 3 (ie, the direction shown in FIG. 3), the relevant positions are as shown in FIG. 4 to FIG. The adjustment holes 46a, 46b, 46c are represented, and the broken lines represent the alignment holes 44a, 44b, 44c. The situation shown in FIG. 4 adjusts the alignment hole 8 1247647 44b to completely overlap with the adjustment hole 46b, and the alignment holes 44a, 44c and the adjustment holes 46a, -46c only partially overlap, and the first mounting frame 32 at this time. The relative position to the second mounting bracket 34 is located in the center of the movable range. The relative positions of the overlapping areas of the first mounting bracket 32 and the second mounting bracket 34 can be relatively adjusted by gradually changing the size of the overlapping area of the alignment holes 44a, 44b, 44c and the adjusting holes 46a, 46b, 46c. When the overlapping area of the alignment hole 44c and the adjustment hole 46c is larger and larger, and the overlapping area of the alignment holes 44a, 44b and the adjustment holes 46a, 46b becomes smaller, the first mounting frame 32 is relatively moved downward, or It is the second mounting bracket 34 that moves relatively upward. When the registration hole 44c is adjusted to completely overlap the adjustment hole 46c, the limit of the movable range is reached at this time, as shown in FIG. On the other hand, if the positions of the alignment holes 44a, 44b, 44c and the adjustment holes 46a, 46b, 46c are changed, the overlapping area of the alignment holes 44a and the adjustment holes 46a is made larger, and the alignment holes 44b, 44c and the adjustment holes are made larger. The overlapping regions of 46b, 46c are getting smaller and smaller, indicating that the first mounting frame 32 moves relatively upward, or the second ampere frame 34 moves relatively downward. When the registration hole 44a is adjusted to completely overlap with the adjustment hole 46a, it reaches the other direction limit of the movable range at this time, as shown in Fig. 6. When changing the positions of the alignment holes 44a, 44b, 44c and the adjustment holes 46a, 46b, 46c, the alignment holes 44a, 44b, 44c and the adjustment holes 46a, 46b, 46c can be inserted using an appropriately sized screw driver or any tool. In the gap, the alignment holes 44a, 44b, 44c and the adjustment holes 46a, 46b, 46c are then rotated or pushed. This method does not require a special fixture, and any suitable size of off-the-shelf tool can be used to reduce the cost of manufacturing the adjustment-fixing tool, while the shape of the alignment holes 44a, 44b, 44c and the adjustment holes 46a, 46b, 46c, It is also not limited to a rectangular configuration, and other shapes such as a circle or a triangle may achieve the object of the invention. After the relative positions of the first mounting frame 32 and the second mounting frame 34 are adjusted, the fixing screws 48 are locked to prevent the first mounting frame 32 and the second mounting frame 34 from being displaced when subjected to vibration. In addition, the second mounting bracket 34 of the present invention can be remounted to a third mounting bracket (not shown), and the second mounting bracket 34 and the third mounting bracket can be moved relative to each other in the other axial direction. According to the invention, this architecture continues to be deduced, and can be extended to multi-axial adjustment mechanisms. Further, the number of the alignment holes and the adjustment holes is not limited to three. The above is only a preferred embodiment, and two or more alignment holes and adjustment holes are also suitable for the present invention. Compared with the adjustment mechanism of the conventional optical component, the invention has the characteristics of good reliability, easy adjustment, simple design and low cost, and can effectively improve the complicated structure of the conventional adjustment mechanism. The above is only the preferred embodiment of the present invention, and all changes and modifications made by the scope of the present invention should be covered by the present invention. 10 1247647 [Simple description of the drawings] Brief description of the drawings Fig. 1 is a schematic view of a conventional optical component mounting mechanism. Figure 2 is a front elevational view of the optical component mounting mechanism of the present invention. Figure 3 is a schematic rear view of the optical component mounting mechanism of the present invention. 4 to 6 are schematic views showing changes in the position of the opening of the alignment hole and the adjustment hole of the present invention. DESCRIPTION OF SYMBOLS 10 Mounting mechanism 12 First mounting bracket 14 Second mounting bracket 16 Positioning screw 18 Optical element 20 Return spring 30 Mounting mechanism 32 First mounting bracket 34 Second mounting bracket 36 Optical element 38 Fixture 40 Guide groove 42 Projection 44 alignment hole 46 adjustment hole 48 fixing screw