l27〇655 九、發明說明： 【毛明所屬之技術領域】 本發明是有關於一種測距裝置，特別是指一種光學測 距裝置。 【先前技術】 參圖1〜圖3，以往的光學測距裝置1主要包含有一本L27〇655 IX. Description of the invention: [Technical field to which Mao Ming belongs] The present invention relates to a distance measuring device, and more particularly to an optical distance measuring device. [Prior Art] Referring to Figures 1 to 3, the conventional optical distance measuring device 1 mainly includes a book.
體U、一調整座12、一光發射單元13、一稜鏡組14及一 光接收單元15。 該本體11具有環繞一軸線X的一環壁n丨、形成在該 衣土 111立而且向外突出的一環緣112，及沿一中心線l貫 牙该環緣112且平行該軸線X的一透光孔丨丨3。 該調整座12是設置在該本體丨環壁U1上，且可相對 該透光孔113位移，調整固定位置。 該光發射單元13具有環繞一中心線l的一管壁π丄、 一光發射件132，及一集光組133。該管壁131是相對該本 11透光孔113貫穿該調整座丨2。該光發射件13 2是一雷 射發光一極體，且容置在該管壁131遠離該透光孔113的一 端部。該集光組133是容置在該管壁131鄰近該透光孔113 的另一端部，並具有二集光鏡片134、135、設置在該二集 光鏡片134、135間的一間隔環136，及螺合於該集光鏡片 135 —側的一壓環137。 該稜鏡組14是設置在該本體u環緣112的一端面。 泫光接收單元15具有設置在該本體丨丨環壁11丨内的一 稜鏡151，及面向該稜鏡151的一光接收件152。該光接收 5 1270655 ， 件152是一雪崩光敏二極體（APD)。 測距時，該光發射件132會沿該中心線L發射雷射光 - 束’且該集光組133可聚集雷射光束沿該中心線L穿經該 透光孔113，並投射在該稜鏡組14上，使雷射光束折射後 沿該轴線x向圖面左側行進，至雷射光束打到目標物後反 射。此時，該反射的雷射光束會投射在該稜鏡151上，使 雷射光束折射後由該光接收件152接收。藉此，利用前述 雷射光束發射、接收的時間差，及波長頻率作運算，達到 • 測距的目的。 當該光學測距裝置1在生產製造時，會因為各個元件 間的偏差，使發射雷射光束的光軸，有偏離該中心線L的 情形’因此，必須移動該調整座12連動該光發射件132， 使發射雷射光束的光軸與該中心線L重疊。 惟’由於該光發射件132與該集光組133是透過該管 土 13 1形成一體’因此，調整光軸時會同步連動該集光組 φ 133，使原本沿該中心線L延伸的集光組133，偏離該中心 線L及該透光孔113，所以，發射的雷射光束會受到該本體 的阻擋，相對的，能通過該透光孔113的有效功率就會 減少。且當雷射光束通過該透光孔113日寺，會因為該集光組 133偏離該中心線L，使雷射光束無法投射在該稜鏡組14 的中〜區域，有雷射光束發散、產生内面反射的現象，及 影響該光接收件152的接收效果，不但雜訊較多，且測距 時的準確性仍有相當大的提昇空間。 【發明内容】 1270655 因此，本發明之目的，即在提供一種調整光軸時不連 動該集光組的光學測距裝置。 於是，本發明光學測距裝置’包含一本體、一調整組 、一光發射組、一集光組、一稜鏡組及一光接收單元。該 本體具有環繞一軸線的一環壁、形成在該環壁一端且向外 突出的一環緣，及沿一中心線貫穿該環緣且平行該軸線的 一透光孔。該調整組具有可位移地設置在該本體環壁上的The body U, an adjustment base 12, a light emitting unit 13, a stack 14 and a light receiving unit 15. The body 11 has a ring wall n around an axis X, a ring edge 112 formed on the soil 111 and protruding outward, and a hole along the center line l and parallel to the axis X. Light hole 丨丨 3. The adjusting seat 12 is disposed on the main body ring wall U1 and is displaceable relative to the light transmitting hole 113 to adjust the fixing position. The light emitting unit 13 has a tube wall π around a center line 1, a light emitting member 132, and a light collecting group 133. The tube wall 131 extends through the adjustment seat 2 with respect to the light transmission hole 113. The light-emitting element 13 2 is a laser-emitting body and is received at an end of the tube wall 131 away from the light-transmitting hole 113. The light collecting group 133 is disposed at the other end of the tube wall 131 adjacent to the light transmitting hole 113, and has two collecting lenses 134 and 135 and a spacer ring 136 disposed between the two collecting lenses 134 and 135. And a pressure ring 137 screwed to the side of the collecting lens 135. The stack 14 is disposed on an end surface of the body u rim 112. The neon light receiving unit 15 has a crucible 151 disposed in the body ring wall 11A, and a light receiving member 152 facing the crucible 151. The light receives 5 1270655 and the piece 152 is an avalanche photosensitive diode (APD). When the distance is measured, the light emitting device 132 emits a laser beam-beam along the center line L, and the light collecting group 133 can collect the laser beam along the center line L and pass through the light-transmitting hole 113, and project on the edge. On the mirror group 14, the laser beam is refracted and travels along the axis x toward the left side of the drawing surface until the laser beam hits the target object and is reflected. At this time, the reflected laser beam is projected on the crucible 151, and the laser beam is refracted and received by the light receiving member 152. Thereby, the time difference between the aforementioned laser beam transmission and reception, and the wavelength frequency are used to achieve the purpose of ranging. When the optical distance measuring device 1 is manufactured, the optical axis of the emitted laser beam may be deviated from the center line L due to the deviation between the respective components. Therefore, the adjustment seat 12 must be moved to interlock the light emission. And 132, the optical axis of the emitted laser beam is overlapped with the center line L. However, since the light-emitting element 132 and the light-collecting group 133 are integrated through the pipe 13 1 , the light collecting group φ 133 is synchronously linked when the optical axis is adjusted, so that the set originally extends along the center line L The light group 133 is offset from the center line L and the light transmission hole 113. Therefore, the emitted laser beam is blocked by the body, and the effective power that can pass through the light transmission hole 113 is reduced. And when the laser beam passes through the light-transmitting hole 113, the laser beam 133 is off-centered from the center line L, so that the laser beam cannot be projected in the middle-region of the group 14, and the laser beam is diverged. The phenomenon of generating internal reflection and affecting the receiving effect of the light receiving member 152 are not only more noise, but also have considerable room for improvement in accuracy in ranging. SUMMARY OF THE INVENTION 1270655 Accordingly, it is an object of the present invention to provide an optical distance measuring device that does not interlock the light collecting group when adjusting the optical axis. Thus, the optical distance measuring device '' of the present invention comprises a body, an adjustment group, a light emission group, a light collection group, a group and a light receiving unit. The body has a ring wall surrounding an axis, a ring edge formed at one end of the ring wall and projecting outwardly, and a light transmission hole extending through the ring edge along a center line and parallel to the axis. The adjustment group is displaceably disposed on the wall of the body ring
一調整座。該光發射組是固設在該調整座上，且可相對該 集光組發射光束。該集光組是固設於該本體且與該本體透 光孔鄰接，可聚集光束沿該中心線穿經該透光孔。該棱鏡 、’且疋疋位在该本體環緣的一端面，可引導前述光束沿該軸 線方向發射。該光接收單元是設置在該本體環壁内，可接 收反射後的光束。 本發明的功效是能提昇發射光束的有效功率、測距時 的準確性，及降低雜訊。 、 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在 乂下配D筝考圖式之—個較佳實施例的詳細說明中，將 清楚的呈現。 芬圖4、圖5,本發明光學測距裝置的較佳實施例包含 有：一本體2、一纲敕& ”整、、且3、一光發射組4、一集光組5、 一稜餘6及—光接枚單元7(參閱圖7)。 辟21"一本體2具有％繞一軸線X的一環壁21、形成在該環 鳊且向外大出的-環緣22，及沿-中心線L貫穿該 1270655 環緣22且與該軸線x平行的一透光孔23。 "亥调整組3具有可位移地設置在該本體2環壁21上的 调整座31 ’及二螺栓32。該調整座31具有沿該中心線l 方向貝牙的一穿孔3 11、形成在兩側且分別沿垂直該中心線 L方向延伸的二長條孔3丨2，及形成在一底面且位於偏心位 置的一弧凸部313。該等螺栓32是分別穿經該調整座31的 長條孔312，及與該本體2環壁21螺合，使該調整座3ι固 定在該本體2環壁21上。 該光發射組4具有沿該中心線L穿固在該調整座3丨穿 孔311内的一外筒μ，及固設在該外筒41内的一光發射件 42。该光發射件42是一雷射發光二極體，且可相對該透光 孔23發射雷射光束。 該集光組5具有環繞該中心線l的一管壁5丨、沿該中 心線L依序容置在該管壁51内的一集光鏡片52、一間隔環 53、另一集光鏡片54，及與該管壁51螺合以定位該等集光 鏡片52、54且與該透光孔23套接的一壓環55。該集光組 5是相對於該光發射組4，且可聚集雷射光束沿該中心線l 穿經該透光孔23。 該稜鏡組6是設置在該本體2環緣22内，並具有面向 该透光孔23的一第一稜鏡61，及面向該第一稜鏡61且與 該第一棱鏡61連結的一第二稜鏡62。該第一、第二棱鏡 61、62的反射面是分別位於該中心線L與該軸線χ通過的 位置，可引導前述雷射光束沿該軸線X方向發射。 簽閱圖7,該光接收單元7是設置在該本體2環壁幻 1270655 内’並具有面向該第二稜鏡62的一稜鏡71，及面向該稜鏡 71的一光接收件72。該光接收件72在本實施例是採用雪 崩光敏二極體（APD)，可接收反射後的光束。 參閱圖5、圖6，分別是本案組合後的立體圖，及該調 整組的側視圖； 當該光發射組4發射的雷射光束，有光軸偏離該中心 線L的情形時，只須鬆釋該等螺栓32，然後，以該調整座 3 1各個長條孔3 12所形成的活動裕度，沿垂直該中心線乙 方向左、右位移該調整座31，並連動該光發射組4，或以 4弧凸。卩3 13為支點，環繞該中心線l俯、仰位移該調整 座31，並連動該光發射組4，就可以調整該調整座31的固 疋位置與角度，使雷射光束的光軸與該中心線L重疊。 重要的是，由於該光發射組4與該集光組5間，並沒 有機構上的連結關係，因此，該調整座31位移時，完全不 會千涉該集光組5,使該集光組5相對該透光孔23恆保持 在固定位置。 > 參閱圖7，測距時，該光發射組4會沿該中心線l相對 該集光組5發射雷射光束，使該集光組5聚集雷射光束沿 該中心線L穿經該透光孔23，並投射在該稜鏡組6的第一 稜鏡61上，經折射後投射在該第二稜鏡62上，再經折射 後沿該轴線X向圖面左側行進，至光束打到目標物後反射 。此時，該反射的雷射光束會投射在該光接收單元7的稜 鏡71上，使雷射光束折射後由該光接收件72接收。藉此 ’利用前述雷射光束發射、接收的時間I，及波長頻率作 9 1270655 運算，達到測距的目的。 據上所述可知，本發明之光學測距裝置具有下列優點 及功效： L由於該光發射組4與該集光組5是採分離式設計，因 此’调整光抽時，完全不會干涉該集光組5，使該集光組5 的中。14 σ亥透光孔23 ^中心能與該中心線l重疊，所以，An adjustment seat. The light emitting group is fixed on the adjusting seat and can emit a light beam with respect to the light collecting group. The light collecting group is fixed to the body and adjacent to the through hole of the main body, and the condensable light beam passes through the light transmitting hole along the center line. The prism, and is positioned at an end face of the body rim, directs the beam to emit in the direction of the axis. The light receiving unit is disposed in the wall of the body ring to receive the reflected light beam. The effect of the invention is to improve the effective power of the emitted beam, the accuracy in ranging, and reduce noise. [Embodiment] The foregoing and other technical contents, features, and effects of the present invention will be apparent from the detailed description of the preferred embodiment of the present invention. Fentu 4 and FIG. 5, a preferred embodiment of the optical distance measuring device of the present invention comprises: a body 2, a frame &&<RTIID=0.0>>> a rib 6 and a photo-joining unit 7 (see Fig. 7). 21" a body 2 having a ring wall 21 about % about an axis X, a ring edge 22 formed in the ring and outwardly extending, and A light-transmissive hole 23 extending through the 1270655 rim 22 and parallel to the axis x along the centerline L. The sea adjustment group 3 has an adjustment seat 31' and two displaceably disposed on the ring wall 21 of the body 2 a bolt 32. The adjusting seat 31 has a through hole 3 11 along the direction of the center line l, and two long holes 3丨2 formed on both sides and extending in the direction perpendicular to the center line L, respectively, and formed on a bottom surface And an arc-shaped convex portion 313 located at an eccentric position. The bolts 32 are respectively passed through the long hole 312 of the adjusting seat 31, and are screwed with the ring wall 21 of the body 2, so that the adjusting seat 3ι is fixed to the body 2 The light emitting group 4 has an outer tube μ that is fixed in the through hole 311 of the adjusting base 3 along the center line L, and a light emission fixed in the outer tube 41. 42. The light emitting device 42 is a laser emitting diode, and can emit a laser beam with respect to the light transmission hole 23. The light collecting group 5 has a tube wall 5 around the center line 1, along the center The line L is sequentially received by a collecting lens 52, a spacer ring 53, and another collecting lens 54 in the tube wall 51, and is screwed with the tube wall 51 to position the collecting lenses 52, 54 and a pressure ring 55 is sleeved with the light transmission hole 23. The light collection group 5 is opposite to the light emission group 4, and the condensable laser beam passes through the light transmission hole 23 along the center line 1. The group 6 is disposed in the annular edge 22 of the body 2 and has a first cymbal 61 facing the light transmission hole 23 and a second rib facing the first cymbal 61 and coupled to the first prism 61. The mirror 62. The reflecting surfaces of the first and second prisms 61, 62 are respectively located at the center line L and the axis ,, and can guide the laser beam to be emitted along the axis X direction. The light receiving unit 7 is disposed in the ring wall 1270655 of the body 2 and has a cymbal 71 facing the second cymbal 62, and a light receiving member 72 facing the cymbal 71. The light In the embodiment, the receiving member 72 adopts an avalanche photosensitive diode (APD), and can receive the reflected light beam. Referring to FIG. 5 and FIG. 6, respectively, the combined perspective view of the present invention, and a side view of the adjustment group; When the laser beam emitted by the light emission group 4 has an optical axis deviated from the center line L, only the bolts 32 need to be released, and then the movable margin formed by each of the elongated holes 3 12 of the adjustment block 3 1 Degree, the adjustment seat 31 is displaced left and right along the direction of the center line B, and the light emission group 4 is interlocked, or 4 arcs are convex. 卩3 13 is used as a fulcrum, and the adjustment seat is tilted and tilted around the center line l. 31, and interlocking the light emitting group 4, the fixing position and angle of the adjusting seat 31 can be adjusted such that the optical axis of the laser beam overlaps the center line L. What is important is that since there is no mechanical connection relationship between the light emitting group 4 and the light collecting group 5, when the adjusting seat 31 is displaced, the light collecting group 5 is not involved at all, so that the light collecting is performed. The group 5 is constantly held in a fixed position with respect to the light transmission hole 23. > Referring to FIG. 7, when the distance is measured, the light emission group 4 emits a laser beam along the center line 1 with respect to the light collection group 5, so that the light collection group 5 gathers the laser beam and passes through the center line L. The light transmission hole 23 is projected on the first cymbal 61 of the cymbal group 6, is refracted and projected on the second cymbal 62, and then refracted and travels along the axis X to the left side of the drawing to The beam is reflected after hitting the target. At this time, the reflected laser beam is projected on the prism 71 of the light receiving unit 7, and the laser beam is refracted and received by the light receiving member 72. Thereby, the use of the aforementioned laser beam transmission and reception time I, and the wavelength frequency for 9 1270655 operation, to achieve the purpose of ranging. It can be seen from the above that the optical distance measuring device of the present invention has the following advantages and effects: L, since the light emitting group 4 and the light collecting group 5 are separated by design, when the light pumping is adjusted, the interference is not interfered at all. The light collecting group 5 is made in the middle of the light collecting group 5. 14 σ Hai light transmission hole 23 ^ center can overlap with the center line l, so,
毛射的田射光束可以不受到該本體2阻擋，藉此，提昇通 過该透光孔23的有效功率。 2·依據上述，當光束通過該透光孔23時，會因為該集 光組5中心恆保持與該中心、線L重疊的狀態，因此，能使 雷射光束投射在該稜倾6的中心區域，有效的將全部雷 射光束折射出纟，不但能降低發散、内面反射的現象，且 雜訊大幅降低，能提昇該光接收單元7的接收效果，及測 距時的準綠性。 a惟以上所述者，僅為本發明之較佳實施例而已，當不 ，以此限定本發日月實施之範目，即大凡依本發明申請專利 乾圍及發明說明内容所作之簡單的等效變化與修飾，皆仍 屬本發明專利涵蓋之範圍内。 10 Ϊ270655 【圖式簡單說明】 圖1是一立體分解圖’說明一般的光學測距裝置； 圖2是一立體圖’說明前述光學測距裝置的組合情形 圖3是一示意圖，說明前述光學測距裝置的測距情形 9 圖4是一立體分解圖，說明本發明一光學測距裝置的 一較佳實施例； 圖5是一立體圖，說明該較佳實施例的組合情形； 、，上圖6疋—側視圖，說明該較佳實施例中位移一調整座 亚調整光軸的情形；及 f^l 7 _ ~不思圖，說明該較佳實施例的測距情形。The field beam of the laser beam may not be blocked by the body 2, thereby increasing the effective power passing through the light transmission hole 23. 2. According to the above, when the light beam passes through the light transmission hole 23, the center of the light collection group 5 is kept in a state of overlapping with the center and the line L, so that the laser beam can be projected at the center of the prism 6 The region effectively refracts all the laser beams out of the crucible, which not only reduces the phenomenon of divergence and internal reflection, but also greatly reduces the noise, and can improve the receiving effect of the light receiving unit 7 and the quasi-greenness during ranging. The above is only the preferred embodiment of the present invention, and is not intended to limit the implementation of the present invention, that is, the simpleness of the patent application and the description of the invention according to the present invention. Equivalent variations and modifications are still within the scope of the invention. 10 Ϊ 270655 BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view illustrating a general optical ranging device; FIG. 2 is a perspective view illustrating a combination of the foregoing optical ranging devices. FIG. 3 is a schematic diagram illustrating the aforementioned optical ranging FIG. 4 is a perspective exploded view showing a preferred embodiment of an optical distance measuring device of the present invention; FIG. 5 is a perspective view showing the combined situation of the preferred embodiment;疋—side view, illustrating the case where the displacement-adjustment sub-adjustment optical axis is in the preferred embodiment; and f^l_ _~ is not considered, illustrating the ranging situation of the preferred embodiment.
11 1270655 【主要元件符號說明】 2… ……*本體 5 *…… …集光組 21 ** …*…環壁 51…… …管壁 22- ♦……環緣 5 2...... …集光鏡片 23- ……·透光孔 53……* …間隔％ 3… • ......調整組 54...... …集光鏡片 3L·* •……調整座 55…… …壓環 311 ……，穿孑L 6 ....... …稜鏡組 312 | ^条孑乙 61 •…* …弟一棱鏡 313 ……·弧凸部 62…… …弟一稜鏡 32- ……·螺检 Ί ·…‘ …光接收單元 4 ". …·…光發射組 71…… …棱鏡 41… ......外问 72…… …光接收件 42… …—光發射件 1211 1270655 [Description of main component symbols] 2... ......*body 5 *... ...light collection group 21 ** ...*...ring wall 51... ...wall 22- ♦......ring 5 5..... ... collecting lens 23 - ... · light transmission hole 53 ... * ... interval % 3 ... • ... adjustment group 54 ... ... collecting lens 3L · * • ... adjustment seat 55...... ...pressure ring 311 ..., wear 孑 L 6 ......... 稜鏡 group 312 | ^ 孑 61 61 61.........* ... brother a prism 313 ... ... arc convex 62 ... ...弟一稜鏡32- ......·螺ΊΊ·...'...light receiving unit 4 ". ...·...light emitting group 71.........prism 41... ......外72.........light receiving Piece 42... - light emitting member 12