201027868 六、發明說明： 【發明所屬之技術領域】 本發明係有關一種光形短窄之雷射裝置，尤指一種在 二極體雷射晶片前方設置有慢轴準直透鏡與非球面透鏡， 用以壓縮慢轴光之角度且準直快、慢轴光，致使輸出光可 成為一功率均勻之短窄平行光束成像之設計者。 【先前技術】 _ 按，二極體雷射（Diode laser)之輸出光形係呈垂直狹 長糖圓光束（慢轴（Slow-Axis)與快轴（Fast-Axis)之軸長 比約為1 : 3〜1 : 4. 5之間），而此特性可依照應用端的不 同，設計不同之光學透鏡系統（Optical lens system)調整 輸出光形，以達到廣泛應用之目的；典型之應用端諸如圓 形雷射光束系統（Round beam system)、雷射平行模組 (Laser collimator module)、雷射打線模組（Laser line generator module)…等多方面應用。 次按，如第一圖所示，二極體雷射普遍之封裝方式， ❹ 係由基底（base，21)、支幹（mount or stem，22)與數支架 (lead，25)構成一散熱座（heat sink)，並將二極體雷射晶 片（diode laser chip ’ 23)置放於散熱片（submount，221) 上，且將散熱片（221)設置於該散熱座之支幹（22)上，另將 用以監控光功率之光偵測二極體（photodiode，24)與保護 内部元件之封蓋（cap，26)設置於該散熱座之基底（21)，並 於該封蓋（26)設置有出光窗（261);其中，該二極體雷射晶 片（23)具有抗反射面與高反射面，抗反射面向外成為二極 201027868 體雷射輸出的主要光源，高反射面朝向該散熱座之基底 (21)，而由高反射面輸出之雷射光射入光偵測二極體 (24)，以作為監控光功率用途。 【發明内容】 本發明之主要目的，係欲提供一種光形短窄之雷射裝 置，而具有讓二極體雷射之光形短窄化（慢轴與快轴之轴長 比至少可達1 : 10)之功效。 本發明之另一目的，則具有輸出功率均勻之平行光束 Φ 之功效。 為達上述功效，本發明之結構特徵，係包括有： 一散熱座，由基底、支幹與數支架所成型，數支架設 置於該基底並用以電性連接； 二極體雷射晶片，置放於一散熱片上，且將該散熱片 設置於該支幹内侧面； 一光偵測二極體，設置於該基底内端面，而位於該二 極體雷射晶片後端，用以監控光功率； φ 一封蓋，罩覆於該基底内端面，而用以保護内部元件， 並設置有出光窗；以及 一慢軸準直透鏡，設置於該二極體雷射晶片前端，將 該二極體雷射晶片慢軸光之輸出角度壓縮者。 此外，進一步設置一非球面透鏡於該慢轴準直透鏡前 端，用以準直快軸光與慢轴光，而調整輸出光形為功率均 勻之平行光束；且該非球面透鏡藉由一中空柱體設置。 再者，該慢軸準直透鏡設置於該支幹末端面，而緊靠 於該二極體雷射晶片，而該慢轴準直透鏡為微柱狀鏡、光 201027868 纖圓柱結構或柱狀凹凸透鏡。另，該散熱片之材質為aln、 SiC、Silicon、CuW或Diamond’甚至是使用熱電致冷片。 【實施方式】 首先，請參閱第二、三圖所示，本發明係包括有： 一散熱座，由基底（11)、支幹（12)與數支架（15)所成 型，數支架（15)設置於該基底（11)並用以電性連接； 二極體雷射晶片（13)，置放於一散熱片（121)上，且將 該散熱片（121)設置於該支幹（12)内側面；而該散熱片（121) φ 之材質為 ALN、SiC、Silicon、CuW 或 Diamond，甚至是使 用熱電致冷片（thermoelectric cooler); 一光偵測二極體（14)，設置於該基底（ii)内端面，而 位於該二極體雷射晶片（13)後端，用以監控光功率； 一封蓋（16)，罩覆於該基底（11)内端面，而用以保護 内部元件，並設置有出光窗（161);以及 一慢軸準直（Slow axis collimator)透鏡（17)，設置 於該支幹（12)末端面，而位於該二極體雷射晶片（13)前 ©端，將該二極髏雷射晶片（13)慢轴光之輸出角度壓縮；而 該慢轴準直透鏡（17)為微柱狀鏡（Micro-Cylindrical lens)、光纖（Opt ical fiber)圓柱結構或柱狀凹凸透鏡 (cylindrical concave-convex lens)者。 此外，進一步藉由一中空柱體（18)設置一非球面透鏡 (Aspherical lens，19)於該慢軸準直透鏡（17)前端’用以 準直快軸光與慢軸光，而調整輸出光形為功率均勻之平行 光束。 基於如是之構成，本發明係在二極體雷射晶片（13)之 201027868 前方設置有慢軸準直透鏡（17)與非球面透鏡（19)，該慢軸 準直透鏡（17)主要用以壓縮二極體雷射晶片（13)輸出之慢 軸光之角度，該非球面透鏡（19)主要用以準直快、慢軸光， 致使輸出光可成為一功率均勻之短窄平行光束成像。然 而，該慢軸準直透鏡（17)置放於二極體雷射晶片（13)前發 光面之前端，並調整與二極體雷射晶片（13)之距離，使雷 射之輸出為線性垂直光源。 再者，在末端所設置之非球面透鏡（19)，乃分別準直 快、慢軸向光形，並配合目標端之需求調整與慢軸準直透 鏡（17)之間距；於是，透過慢轴準直透鏡（17)與非球面透 鏡（19)之壓縮與準直，可使本雷射裝置產生功率均勻之短 窄平行光束。其中，量測距離在30公分以内，慢軸與快軸 之光形比為1: 10及其以上（以光強度能量50%寬度為標 準）；而於20公分距離量測時，線光源長度可至10公厘以 下，功率分佈均勻，誤差範圍為±30%以下，線光源寬度最 小可達1公厘以下；又，根據如第四圖所示之實驗結果， 線光源長度可至5公厘左右，功率分佈均勻，誤差範圍為士 10%左右，線光源寬度為最小，可達0. 5公厘。 是以，本發明在二極體雷射晶片（13)前方所設置之慢 軸準直透鏡（17)與非球面透鏡（19)，係壓縮了慢轴光之角 度且準直了快、慢軸光，致使輸出光可成為一功率均勻之 短窄平行光束成像，而具有讓二極體雷射之光形短窄化且 輸出功率均勻之平行光束之功效。 綜上所述，本發明所揭示之技術手段，確具「新穎性」、「進 步性」及「可供產業利用」等發明專利要件，祈請鈞局惠賜 201027868 專利，以勵發明，無任德感。 惟，上述所揭露之圖式、說明，僅為本發明之較佳實施例， 大凡熟悉此項技藝人士，依本案精神範疇所作之修飾或等效變 化，仍應包括本案申請專利範圍内。 201027868 【圖式簡單說明】 第一圖係習知二極體雷射之結構說明圖。 第二圖係本發明之結構說明圖（一）。 第三圖係本發明之結構說明圖（二）。 第四圖係本發明之實驗結果攝像圖。 【主要元件符號說明】 (11) 、（21)基底201027868 VI. Description of the Invention: [Technical Field] The present invention relates to a light-shaped short-narrow laser device, and more particularly to a slow-axis collimating lens and an aspheric lens disposed in front of a diode laser wafer. It is used to compress the angle of slow axis light and collimate fast and slow axis light, so that the output light can be a designer of short and narrow parallel beam imaging with uniform power. [Prior Art] _ Press, the output light pattern of the Diode laser is a vertical narrow-light circular beam (the slow axis (Slow-Axis) and the fast axis (Fast-Axis) have an axial length ratio of about 1 : 3 ~ 1 : 4. 5)), and this feature can be designed according to the application side, different optical lens system (Optical lens system) to adjust the output light shape for a wide range of applications; typical application end such as a circle The round beam system, the laser collimator module, the laser line generator module, etc. are used in many applications. Press twice, as shown in the first figure, the general package of diode lasers, which consists of a base (21), a mount or stem (22) and a number of leads (25). Heat sink, and place the diode laser chip '23' on the heat sink (submount, 221), and place the heat sink (221) on the heat sink (22) On the other hand, a photodiode (24) for monitoring the optical power and a cover (cap) 26 for protecting the internal components are disposed on the base (21) of the heat sink, and the cover is (26) A light-emitting window (261) is provided; wherein the diode laser chip (23) has an anti-reflection surface and a high-reflection surface, and the anti-reflection surface is the main light source for the laser output of the diode 201027868, and the high reflection The surface faces the substrate (21) of the heat sink, and the laser light outputted by the high reflection surface is incident on the light detecting diode (24) for monitoring optical power use. SUMMARY OF THE INVENTION The main object of the present invention is to provide a light-shaped short-narrow laser device with a short narrowing of the light shape of the diode laser (the axial length ratio of the slow axis and the fast axis is at least 1 : 10) The effect. Another object of the present invention is to have the effect of a parallel beam Φ having a uniform output power. In order to achieve the above effects, the structural features of the present invention include: a heat sink formed by a substrate, a support and a plurality of brackets, a plurality of brackets disposed on the substrate and electrically connected; the diode laser chip, Putting on a heat sink and disposing the heat sink on the inner side of the branch; a light detecting diode disposed on the inner end surface of the substrate and located at the rear end of the diode laser for monitoring light Power; φ a cover covering the inner end surface of the substrate to protect the internal components and provided with a light exit window; and a slow axis collimating lens disposed at the front end of the diode laser wafer The output angle of the slow-axis light of the polar laser chip is compressed. In addition, an aspherical lens is further disposed on the front end of the slow axis collimating lens for collimating the fast axis light and the slow axis light to adjust the output light shape to be a parallel beam of uniform power; and the aspheric lens is provided by a hollow cylinder Settings. Furthermore, the slow axis collimating lens is disposed on the branch end surface and is in close proximity to the diode laser wafer, and the slow axis collimating lens is a microcolumn mirror, a light 201027868 fiber column structure or a columnar shape Concave lens. In addition, the heat sink is made of aln, SiC, Silicon, CuW or Diamond' even using a thermoelectric cooling sheet. [Embodiment] First, referring to the second and third figures, the present invention includes: a heat sink, which is formed by a base (11), a branch (12) and a plurality of brackets (15), and a plurality of brackets (15) ) is disposed on the substrate (11) and electrically connected; the diode laser chip (13) is placed on a heat sink (121), and the heat sink (121) is disposed on the branch (12) The inner side surface; and the heat sink (121) φ is made of ALN, SiC, Silicon, CuW or Diamond, even using a thermoelectric cooler; a light detecting diode (14) is disposed on An inner end surface of the substrate (ii) is located at a rear end of the diode laser chip (13) for monitoring optical power; a cover (16) covering the inner end surface of the substrate (11) for Protecting internal components and providing a light exit window (161); and a slow axis collimator lens (17) disposed on the end face of the stem (12) and located on the diode laser wafer ( 13) The front end end compresses the output angle of the slow axis light of the two-pole laser wafer (13); and the slow axis collimating lens (17) is a micro-column Mirror (Micro-Cylindrical lens), an optical fiber (Opt ical fiber) a cylindrical or columnar structure meniscus lens (cylindrical concave-convex lens) persons. In addition, an aspherical lens (19) is further disposed on the front end of the slow axis collimating lens (17) by a hollow cylinder (18) for collimating the fast axis light and the slow axis light to adjust the output light. Shaped as a parallel beam of uniform power. Based on the constitution, the present invention is provided with a slow axis collimating lens (17) and an aspherical lens (19) in front of the 201027868 of the diode laser chip (13). The slow axis collimating lens (17) is mainly used. The aspherical lens (19) is mainly used to collimate the fast and slow axis light by compressing the angle of the slow axis light output from the diode laser chip (13), so that the output light can be a short-parallel beam imaging with uniform power. However, the slow axis collimating lens (17) is placed at the front end of the front light emitting surface of the diode laser chip (13), and the distance from the diode laser chip (13) is adjusted so that the output of the laser is Linear vertical light source. Furthermore, the aspherical lens (19) disposed at the end is respectively collimated with a fast and slow axial light shape, and is adjusted to the distance between the slow axis collimating lens (17) in accordance with the demand of the target end; thus, the slow axis is transmitted through The compression and collimation of the collimating lens (17) and the aspherical lens (19) allows the laser device to produce a short, narrow parallel beam of uniform power. Wherein, the measuring distance is within 30 cm, and the ratio of the slow axis to the fast axis is 1:10 and above (based on the 50% width of the light intensity energy); and when measuring at a distance of 20 cm, the length of the line source It can be up to 10 mm, the power distribution is even, the error range is less than ±30%, and the line source width is at least 1 mm. In addition, according to the experimental results as shown in the fourth figure, the line source length can be up to 5 5毫米。 The PCT, the power distribution is uniform, the error range is about 10%, the line light source width is the smallest, up to 0.5 mm. Therefore, the slow-axis collimating lens (17) and the aspherical lens (19) disposed in front of the diode laser chip (13) of the present invention compress the angle of the slow-axis light and collimate quickly and slowly. The axial light causes the output light to be a short-parallel beam of light with uniform power, and has the effect of making the light of the diode laser narrow and narrow and the output power is uniform. To sum up, the technical means disclosed in the present invention have the invention patents such as "novelty", "progressiveness" and "available for industrial use", and pray for the 201027868 patent to encourage the invention. Ren De sense. The drawings and the descriptions of the present invention are merely preferred embodiments of the present invention. Those skilled in the art and the modifications or equivalent changes made in accordance with the spirit of the present invention should still include the scope of the patent application. 201027868 [Simple description of the diagram] The first diagram is a structural description of the conventional diode laser. The second drawing is a structural explanatory diagram (1) of the present invention. The third drawing is a structural explanatory diagram (2) of the present invention. The fourth figure is an image of the experimental results of the present invention. [Main component symbol description] (11), (21) base
(12) 、（22)支幹 (121)、（221)散熱片 (13) 、（23)二極體雷射晶片 (14) 、（24)光偵測二極體 (15) 、（25)支架 (16) 、（26)封蓋 (161)、（261)出光窗 (17) 慢轴準直透鏡 (18) 中空柱體 (19) 非球面透鏡(12), (22) support (121), (221) heat sink (13), (23) diode laser (14), (24) light detection diode (15), (25 ) bracket (16), (26) cover (161), (261) light window (17) slow axis collimating lens (18) hollow cylinder (19) aspheric lens