1269053 14378twf.doc/g 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種光電預警裝置，且特別是有關於 一種具有間接感測模組的光電預警裝置。 【先前技術】 1991年初的波斯灣戰爭中，雷射導引·武器、雷射夜視 系統和雷射熱像夜視光電裝備等，已經由實戰驗證成為非 • 常重要的武器系統。而其中的雷射導引武器所展現的精確 命中率’更是令人印象深刻。 • 由於雷射導引武器的高命中率，因此各國也在思考能 〜夠採取的反制措施。其中，光電預警裝置能夠偵測雷射測 距以及導引攻擊所發出的導引訊號，而提供警告的訊息， 因此成為新一代電子系統中之光電預警反制類裝備。光電 預警裝置是一個高靈敏度的設備，其具有高靈敏度之光偵 測器，能夠偵測在偵測器周圍的可見光或是近紅外光波長 等的雷射光。 ' 一般來說，光電預警裝置都會具有一間接偵測模組， 以用來間接地偵測例如雷射光的光訊號。更詳細地說，當 光訊號並未直接入射到光電預警裝置，而是入射到其他的 物體上時，光電預警裝置就利用間接偵測模組來探測光訊 號從其他物體上所反射的部份光線。 圖1係繪示一種習知的光電預警裝置之間接偵測模組 的結構圖。請參照圖i，習知的間接偵測模組包括了接收 稜鏡10和光接收器12。其中，接收稜鏡1〇具有入光面 1269053 14378twf.doc/g l〇a、出光面i〇b和反射面1〇c。從圖丄中可以看到，反射 面10c係形成一内凹的球面，用來將從入光面入射的 光線反射至出光面10b。以下係舉一實例來說明。1269053 14378twf.doc/g IX. Description of the Invention: [Technical Field] The present invention relates to a photoelectric early warning device, and more particularly to a photoelectric early warning device having an indirect sensing module. [Prior Art] In the Persian Gulf War in early 1991, laser guidance weapons, laser night vision systems, and laser thermal imaging night vision optoelectronic equipment have been verified by actual combat to become non-essential weapon systems. The precise hit rate exhibited by the laser-guided weapons is even more impressive. • Due to the high hit rate of laser-guided weapons, countries are also thinking about the countermeasures that can be taken. Among them, the photoelectric early warning device can detect the laser ranging and the pilot signal sent by the guided attack, and provide a warning message, thus becoming a photoelectric early warning counter-type equipment in the new generation electronic system. The photoelectric warning device is a highly sensitive device with a highly sensitive light detector capable of detecting laser light such as visible light or near-infrared light wavelength around the detector. In general, photoelectric warning devices have an indirect detection module for indirectly detecting optical signals such as laser light. In more detail, when the optical signal is not directly incident on the photoelectric warning device but is incident on other objects, the photoelectric early warning device uses the indirect detection module to detect the portion of the optical signal reflected from other objects. Light. FIG. 1 is a structural diagram of a conventional photoelectric detection device interconnection detection module. Referring to FIG. 1, the conventional indirect detection module includes a receiving port 10 and an optical receiver 12. The receiving 稜鏡1〇 has a light incident surface 1269053 14378twf.doc/g l〇a, a light exit surface i〇b, and a reflective surface 1〇c. As can be seen from the figure, the reflecting surface 10c forms a concave spherical surface for reflecting the light incident from the light incident surface to the light emitting surface 10b. The following is an example to illustrate.
假设光訊號的部份光線因為物體的反射，因而循著光 線軌跡L1到達入光面1〇b，並且入射接收棱鏡1〇。然後 經由射面l〇c的反射，而從出光面1〇b出射，並到達光 接收為12。當光接收器12接收到光線後，就 警裝置發出警告訊息。 、一因為間接光電預警裝置中的間接偵測模組不是直接探 測光訊號，而是接收光訊餘由物體反射的部份光線。因 此除了間接偵測模組中之光接收器的靈敏度要很高之 外，接收稜鏡所能夠探測的範圍大小也很重要。 【發明内容】 口此本發明的目的就是在提供一種光電預罄斑 Ϊ間接_她賴接制辟元件總成，可以偵測社 耗圍區域内所發出之光訊號。 杜她Ϊ發明係提供—種光電預警裝置之間接制光學元 〜成，包括了接收稜鏡和圓錐狀反射元件。1中，接收 光面、一出光面和一圓錐狀凹槽?而圓錐狀 糸/、有_圓錐角。另外’圓錐狀反射元件係具有接收 圓錐狀凹槽所具有的圓錐角，而使得圓錐狀 圓錐狀凹槽。此圓錐狀反射元件係用來 將攸入先面進入之光線反射至出光面。 在較佳的情況下，本發明還包括一集光元件，係配置 6 1269053 14378twf.doc/g 於出光面，以將從出光面出射之光線聚焦。 從另一觀點來看，本發明提供一種光電預馨裝置之間 接摘測模組，包括了接收稜鏡和光接收器。而接收棱鏡具 有一入光面、一出光面和一反射面。其中，反射面位於接 收稜鏡的内部，伽彡成―圓錐狀表面，絲將從入光面入 射之光線反較出光面。接著，光職出光面出射之後， 會由光接收器接收。 在較佳的情況下，本發明還包括一濾光鏡片，係配置 於光接收器和接收稜鏡的出光面之間。 從另一觀點來看，本發明係提供一種光電預警裝置， 用來探測一光訊號，當光電預警裝置探測到光訊號時，就 會發出警告訊息。而本發明之光電預警裝置包括了直接偵 測模組，係具有至少-光制單元，用來直接_光訊號。、 此外，本發㈣包括了間接彳貞賴組，絲伽彳光訊號從 物體所反射之光線。而間接偵測模組還包括了接收稜鏡 和光接收器。其中，接收稜鏡具有—人光面、—出光面和 一反射面。而反射面位於接收稜鏡的内部，係形成一圓錐 狀表面，用來將從入光面入射之光線反射至出光面。而光 線攸出光面出射之後，會由光接收器接收。 «另一觀點來看，本發明係提供一種光電預警裝置之 間接_光學元件總成，其包括了—接收稜鏡，係具有一 入光面、一出光面和一反射面。而本發明所提供之間接偵 測光學元件總成的特徵，在於接收稜鏡的反射面係位於接 收稜鏡内部，並且形成一圓錐狀表面，以將從入光面入射 1269053 14378twf.doc/g 之光線反射至出光面。 在本發明的實施例中，接收稜鏡係一圓錐柱狀稜鏡， 而圓錐面就是接收稜鏡的入光面，底面則是接收稜鏡的出 光面。此外，反射面所圍成之圓錐狀表面的圓錐角，係指 向出光面，而圓錐狀表面之底面，則朝向圓錐柱狀稜鏡的 圓錐角。 綜上所述，在本發明所提供之間接偵測模組内之間接 • 偵測光學元件總成中，因為接收稜鏡具有圓錐狀表面的反 射面，因此可以讓本發明之光電預警裝置有更大的偵測範 - 圍，以及早進行反制的動作。 . 為讓本發明之上述和其他目的、特徵和優點能更明顯 易懂，下文特舉較佳實施例，並配合所附圖式，作詳細說 明如下。 【實施方式】 圖2係繪示依照本發明之一較佳實施例的一種光電預 鲁 警裝置之前視圖。請參照圖2，本發明所提供的光電預警 裝置200，可以安裝於例如戰車等的行動機具上，以探測 例如光訊號等的導引訊號。在光電預警裝置2〇〇中，包括 了直接感測模組210和間接感測模組22〇。其中，直接感 測模单210測係用來直接感測作為導引訊號的光訊號。當 光訊號直接打在光電預警裝置200的直接感測模組21〇上 而使得直接感測模組210偵測到時，就會使光電預警裝置 200發出警告訊息。但是，並不是所有的光訊號都會直接 打在光電預警裝置200上。因此，本發明之之光電預警裝 8 I269(^7_c/g 置200更提，了間接债測模組220。若是光訊號投射在其 他的物體上日寸’間接偵測模組220可以感測到光訊號被其 他物體反射的部份光線，並且同樣使光電預警裝置細發 出警告訊息。 述所提及之作為導引訊號的光訊號 ，可以是一種雷 ^光几號例如可見光雷射訊號或是近紅外光雷射訊號 等。以下舉一實例來說明導引訊號的功用：假設，當甲方 • 欲攻擊乙^的目標物(例如戰車)時，為了使武器能夠精準 的命:目払’會先發出導引訊號來標定乙方之目標物的位 -置。當導引訊號鎖定乙方之目標物後，就會引導曱方所發 射的武恭(例如飛彈)來命中正確的目標。 圖3係繪示圖2之直接感測模組210的俯視圖。請參 照圖3，從感測模組21〇的俯視圖中可以很清楚的看到， 光電預警裝置200具有八個例如光接收器31的光偵測單 元，刀別用來感測八個方位的區域。當八個光備測單元中 的其中一個感測到光訊號時，例如光接收器31感測到導引 馨 訊號時，就會使得光電預警裝置2〇〇發出警告訊息，表示 在光接收器31所感測的區域内發現有光訊號的發出，而使 用者就可以依據光電預警裝置200所發出的警告訊息而及 早進行反制動作。 圖4係繪示依照本發明之一較佳實施例的一種間接偵 測模組之結構示意圖。請參照圖4，間接偵測模組包括了 間接偵測光學元件總成410和光接收器430。其中，光訊 號的部分反射光線所行進的方向，會經由間接偵測光學元 1269053 14378twf.doc/g ，件總成410改變後而將其送至光接收器430。而當光接收 器430接收到光線時，就會使光電預警裝置200發出警告 訊息。 在光學元件總成410中，包括了接收稜鏡412和圓錐 狀反射元件414。其中，接收稜鏡412具有圓錐狀凹槽， 其具有圓錐角01。同樣地，圓錐狀反射元件414也具有相 同的圓錐角01。因此，圓錐狀反射元件414能夠嵌合在接 φ 收稜鏡412内。 從另一個角度來看，接收稜鏡412可以是一.圓錐柱狀 、 稜鏡(在本實施例中，接收稜鏡412為一圓錐柱狀稜鏡的底 部部分），其具有入光面41、出光面43和反射面45。其中， 入光面41係位於圓錐柱狀稜鏡的圓錐面，出光面43則位 於圓錐柱狀稜鏡的底面。此外，反射面45係形成一圓錐狀 表面’其圓錐角Θ1係指向圓錐柱狀稜鏡的底部，而其圓 錐狀表面的底部則朝向接圓錐柱狀稜鏡的圓錐角。另 φ 外’在反射面45所為成的圓錐狀凹槽的空間中，可以填入 反射物質（即圓錐狀反射元件），使得光線從入光面41進入 後’可以經由反射面45的反射而從出光面43出射。 睛繼續參照圖4，在間接光學元件總成41〇中，還具 有例如菲涅爾透鏡(Fresnel lens)的集光元件416，係配置於 出光面4 3上。集光元件416係用來將出光面4 3所出射的 光線聚焦在光接收器430上，以使得光接收器43〇接收光 線的效率可以增加。 另外在本實施例中，光接收器430和出光面43之間， 1269053 14378twf.doc/g 可以配置濾光鏡片440。濾光鏡片440可以濾除掉一些雜 散的光線，使得光接收器430不會接收到光訊號之光線外 的其他光線，而影響了系統的準確度。 以下我們可以利用光線行進的路線，來了解本發明的 原理。當光線循著光線軌跡L2到達入光面41後，會產生 折射，並且由入光面41進入接收稜鏡412。接著光&會到 達反射面45 ’並i改變行進的方向從出光面43出射。當 光線從出光面43出射後，會再—次產生折射，然後經由集 光疋件416將光線聚焦後，透過遽光鏡片440由光接收器 430所接收。當光接收器43〇接收到光線時，會使得本發 明所提供之光電預警裝置發出警告的訊息。 上述所提及之警告訊息，.包括了在一例如㈣的面板 上’顯不光訊號之來源的方向讓使用者知道，以提早進行 準備的動作。 為使光線的利用率能夠到達最佳的狀況，本發明合 ^光面41出光的一面41a上，以及在反射面45上，^一 二，2層47，以增加光線在接收稜鏡内反射的次數而不 會任思散逸出去。另外，本發明會在出光面43上鑛 抗反射層49，以增加光線出射的效率。 曰 μ ΐ本Γ月中，反射面45所圍成之圓錐狀表面（即圓錐 \射轉之表面)所形成之®錐角Θ1的歧，與本發明 大範圍有很大的關係。圖5係緣示本發；之 3 = 探測範圍示意圖。請參照圖5,當例如圖4 的肖度愈小，本發明之光電預警裝置所能 11 1269053 14378twf.doc/g 夠探測的範圍也就愈大。熟習此技藝者可以自行依照實& 上的需要，來決定例如圖4中之圓錐角01之角度的大小， 本發明在此不作限制。 綜上所述，本發明至少有以下優點： 1·本發明因為將接收稜鏡内的反射面以圓錐狀表面代 替，因此使得本發明所能探測的範圍更大。It is assumed that part of the light of the optical signal reaches the light incident surface 1〇b following the light path L1 due to the reflection of the object, and is incident on the receiving prism 1〇. Then, it is emitted from the light-emitting surface 1〇b via the reflection of the plane l〇c, and reaches the light reception level 12. When the light receiver 12 receives the light, the alarm device issues a warning message. The indirect detection module in the indirect photoelectric warning device does not directly detect the optical signal, but receives part of the light that is reflected by the object. Therefore, in addition to the high sensitivity of the optical receiver in the indirect detection module, the range of the range that the receiving port can detect is also important. SUMMARY OF THE INVENTION The object of the present invention is to provide an optoelectronic pre-spotted Ϊ indirect _ her reliance on the component assembly, which can detect the optical signals emitted in the surrounding area of the social consumption. Du Hern invented the invention to provide an optical element between the photoelectric warning devices, including the receiving cymbal and the conical reflecting element. In 1, the receiving light surface, a light emitting surface and a conical groove, and the conical shape 、 /, has a _ cone angle. Further, the conical reflecting element has a conical angle which receives the conical groove, and a conical conical groove. The conical reflecting element is used to reflect the light entering the front surface to the light exiting surface. In a preferred embodiment, the present invention further includes a light collecting element disposed on the light exiting surface to focus the light emerging from the light exiting surface. From another point of view, the present invention provides an optical presensing device inter-synthesis module comprising a receiving cymbal and a light receiver. The receiving prism has a light incident surface, a light exit surface and a reflective surface. Wherein, the reflecting surface is located inside the receiving cymbal, and the gamma is formed into a conical surface, and the light which is incident from the light incident surface is opposite to the light surface. Then, after the light exiting the light surface, it will be received by the light receiver. In a preferred aspect, the invention further includes a filter lens disposed between the light receiver and the light exit surface of the receiving cassette. From another point of view, the present invention provides a photoelectric warning device for detecting an optical signal, and when the photoelectric early warning device detects the optical signal, a warning message is issued. The photoelectric early warning device of the present invention comprises a direct detection module having at least a light unit for direct _ optical signal. In addition, this issue (4) includes the indirect reliance group, the light reflected from the object by the gamma ray signal. The indirect detection module also includes a receiving port and a light receiver. The receiving cassette has a human face, a light exit surface and a reflective surface. The reflecting surface is located inside the receiving cymbal and forms a conical surface for reflecting the light incident from the incident surface to the illuminating surface. After the light exits the light surface, it is received by the light receiver. «In another aspect, the present invention provides an indirect optical component assembly for a photoelectric warning device that includes a receiving aperture having a light incident surface, a light exit surface, and a reflective surface. The inductive detecting optical component assembly of the present invention is characterized in that the reflecting surface of the receiving cymbal is located inside the receiving cymbal and forms a conical surface so as to be incident from the light incident surface 1269053 14378 twf.doc/g The light is reflected to the illuminating surface. In an embodiment of the invention, the receiving raft is a conical cylindrical ridge, and the conical surface is the illuminating surface of the receiving cymbal, and the bottom surface is the illuminating surface of the receiving cymbal. Further, the taper angle of the conical surface surrounded by the reflecting surface refers to the light exiting surface, and the bottom surface of the conical surface faces the taper angle of the conical cylindrical crucible. In summary, in the inter-connecting detection optical component assembly provided by the present invention, since the receiving cymbal has a reflective surface with a conical surface, the photoelectric early warning device of the present invention can be A larger detection range - and early counter-attacks. The above and other objects, features, and advantages of the present invention will become more apparent from the description of the appended claims. [Embodiment] FIG. 2 is a front elevational view of an optoelectronic pre-war alarm device in accordance with a preferred embodiment of the present invention. Referring to Fig. 2, the photoelectric warning device 200 of the present invention can be mounted on a mobile machine such as a vehicle to detect a pilot signal such as an optical signal. In the photoelectric warning device 2, a direct sensing module 210 and an indirect sensing module 22 are included. The direct sensing module 210 is used to directly sense the optical signal as the pilot signal. When the optical signal is directly applied to the direct sensing module 21 of the photoelectric warning device 200 and the direct sensing module 210 detects the light, the photoelectric early warning device 200 issues a warning message. However, not all optical signals will be directly applied to the photoelectric warning device 200. Therefore, the photoelectric warning device 8 I269 of the present invention (^7_c/g 200 is further mentioned, the indirect debt testing module 220. If the optical signal is projected on other objects, the indirect detection module 220 can sense A part of the light that is reflected by other objects, and also causes the photoelectric warning device to issue a warning message. The optical signal mentioned as the pilot signal may be a lightning light signal such as a visible laser light signal or It is a near-infrared laser signal, etc. The following is an example to illustrate the function of the pilot signal: Assume that when Party A wants to attack the target of the object (such as a chariot), in order to make the weapon accurate:払 ' will first send a pilot signal to calibrate the position of the target of Party B. When the pilot signal locks the target of Party B, it will guide the martial arts (such as missiles) launched by the squad to hit the correct target. 3 is a top view of the direct sensing module 210 of FIG. 2. Referring to FIG. 3, it can be clearly seen from the top view of the sensing module 21〇 that the photoelectric warning device 200 has eight, for example, optical receivers. 31 light detection unit, knife It is not used to sense the area of eight directions. When one of the eight optical standby units senses the optical signal, for example, when the light receiver 31 senses the guiding signal, the photoelectric warning device 2 is caused. A warning message is issued indicating that an optical signal is detected in the area sensed by the optical receiver 31, and the user can perform the counter-action early according to the warning message sent by the photoelectric warning device 200. A schematic diagram of an indirect detection module according to a preferred embodiment of the present invention. Referring to FIG. 4, the indirect detection module includes an indirect detection optical component assembly 410 and an optical receiver 430. The direction in which the partially reflected light travels is sent to the light receiver 430 via the indirect detection optical element 1269503 14378twf.doc/g, and the component assembly 410 is changed. When the light receiver 430 receives the light, The photoelectric warning device 200 is caused to issue a warning message. In the optical component assembly 410, a receiving bore 412 and a conical reflecting element 414 are included. The receiving bore 412 has a conical recess with There is a cone angle 01. Similarly, the conical reflecting elements 414 also have the same cone angle 01. Therefore, the conical reflecting element 414 can be fitted into the φ 稜鏡 412. From another point of view, the receiving 稜鏡The 412 may be a conical column, a crucible (in the present embodiment, the receiving crucible 412 is a bottom portion of a conical cylindrical crucible) having a light incident surface 41, a light exit surface 43 and a reflective surface 45. The light entrance surface 41 is located on the conical surface of the conical columnar crucible, and the light exit surface 43 is located on the bottom surface of the conical columnar crucible. Further, the reflection surface 45 forms a conical surface, and the conical angle Θ1 is directed to the conical column shape. The bottom of the crucible, and the bottom of its conical surface faces the cone angle of the conical columnar crucible. In addition, in the space of the conical groove formed by the reflecting surface 45, a reflective substance (ie, a conical reflecting element) may be filled so that the light enters from the light incident surface 41 and may be reflected by the reflecting surface 45. It exits from the light exit surface 43. With reference to Fig. 4, in the indirect optical element assembly 41, a light collecting element 416 having, for example, a Fresnel lens is disposed on the light exit surface 43. The light collecting element 416 is used to focus the light emitted from the light exiting surface 43 on the light receiver 430 so that the efficiency of the light receiving unit 43 to receive the light can be increased. In addition, in this embodiment, between the light receiver 430 and the light exit surface 43, 1269053 14378twf.doc/g can be configured with the filter lens 440. The filter lens 440 can filter out some stray light, so that the light receiver 430 does not receive light other than the light signal, which affects the accuracy of the system. Below we can use the route of light travel to understand the principles of the present invention. When the light reaches the light incident surface 41 following the light trajectory L2, refraction occurs, and the light incident surface 41 enters the receiving pupil 412. Then, the light & will reach the reflecting surface 45' and i will change the direction of travel from the light exiting surface 43. When the light exits the light exit surface 43, the refraction is generated again, and then the light is focused by the light collecting element 416 and received by the light receiver 430 through the calender lens 440. When the light receiver 43 receives light, it causes the photoelectric warning device provided by the present invention to issue a warning message. The above-mentioned warning message includes the action of letting the user know in the direction of the source of the illuminating signal on a panel such as (4) for early preparation. In order to achieve the best utilization of the light, the light-emitting surface 41 of the present invention has a light-emitting surface 41a, and on the reflective surface 45, two or two layers, 47, to increase the light reflection in the receiving pupil. The number of times will not let go. In addition, the present invention will mine the anti-reflection layer 49 on the light-emitting surface 43 to increase the efficiency of light emission.曰 μ In the middle of the month, the degree of the cone angle Θ1 formed by the conical surface surrounded by the reflecting surface 45 (i.e., the surface of the cone/radiation) has a great relationship with the wide range of the present invention. Figure 5 shows the hairline; 3 = the detection range. Referring to FIG. 5, the smaller the degree of oscillating, for example, in FIG. 4, the larger the range of detection of the photoelectric early warning device of the present invention is 11 1269053 14378 twf.doc/g. Those skilled in the art can determine the angle of the angle of the cone angle 01 in FIG. 4 according to the requirements of the actual & the invention is not limited herein. In summary, the present invention has at least the following advantages: 1. The present invention replaces the reflecting surface in the receiving bowl with a conical surface, thereby making the range detectable by the present invention larger.
2·使用者只要調整反射面所形成之圓錐狀表面之圓錐 角的大小，就可以決定本發明所能夠探測的範圍。因此， 本發明之光電預警裝置應用之領域的彈性非常大。 雖然本發明已以較佳實施例揭露如上，然其並非用以 限定本發明，任何熟習此技藝者，在不脫離本發明之精神 ^範圍内，當可作些許之更動與潤飾，因此本發明之=護 範圍當視後附之申請專利範圍所界定者為準。 【圖式簡單說明】 圖1係繪示一種習知的光電預警裝置之間接偵測模組 的結構圖。 =2士㈣贿本發明之—難實施_—種光電預 °衣置之別視圖。 圖3係繪示圖χ之直接感測模組的俯視圖。 測模本發明之，佳實施例的-種綱 圖。圖5鱗示本發明之光電預警裝置的探測範圍示意 【主要元件符號說明】 12 1269053 14378twf.doc/g 10 :接收稜鏡 10a :入光面 10b :出光面 10c :反射面 12、31、430 :光接收器 41 :入光面 43 :出光面 45 :反射面 200 :光電預警裝置 210 :直接偵測模組 220 :間接偵測模組· 410 :間接偵測光學元件總成 412 :接收穢鏡 414 :圓錐狀反射元件 416 :集光元件 440 :濾光鏡片 LI、L2 :光線軌跡 (9 1、0 2 :圓錐角 132. The user can determine the range that can be detected by the present invention by adjusting the size of the conical angle of the conical surface formed by the reflecting surface. Therefore, the field of application of the photoelectric warning device of the present invention is very flexible. While the present invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection = the scope defined in the attached patent application shall prevail. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a structural view showing a conventional interconnection detecting module of a photoelectric early warning device. = 2 士 (4) Bribes of the invention - difficult to implement _ - a variety of optoelectronic pre-clothing. 3 is a top plan view of the direct sensing module of FIG. The model of the preferred embodiment of the present invention is measured. Figure 5 is a schematic view showing the detection range of the photoelectric warning device of the present invention. [Main component symbol description] 12 1269053 14378twf.doc/g 10 : Receiving port 10a: light-incident surface 10b: light-emitting surface 10c: reflecting surface 12, 31, 430 : Light Receiver 41 : Light Entry Surface 43 : Light Exit Surface 45 : Reflective Surface 200 : Photoelectric Warning Device 210 : Direct Detection Module 220 : Indirect Detection Module · 410 : Indirect Detection Optical Component Assembly 412 : Receiving 秽Mirror 414: Conical reflecting element 416: Light collecting element 440: Filter lens L1, L2: Ray trajectory (9 1 , 0 2 : Cone angle 13