201019293 « 六、發明說明： 【發明所屬之技術領域】 本發明是有關於-種成像裝置，特別是指一種雷射成 像裝置。 【先前技術】 如圖1所示，習知的雷射成像裝置（例如在簡報場合中 常見的雷射筆），具有-金屬片體u、一雷射光源12、一頻 率調整器13’及-壓電陶以14，該金屬諸u上形成 # 有-折變面⑴’且該折，面上⑴是經過拋光處理(或是 貼附有反光材料），以反射該雷射光源12之雷射光束（如圖 中假想線所示），該壓電陶瓷片14是貼合於該金屬片體H 上，並與該頻率調整器13電連接’以藉由該頻率調整器13 以調整該壓電陶瓷片14之一諧振頻率，進而連動該金屬片 體11產生位移或形變，進而使該折彎面ηι所反射的雷射 光束可依據該金片體U相對應之位移或形變而以一直線 或圓圈形狀投射出。 ® 但疋，上述之雷射成像裝置，僅具有兩種投射形狀模 式，雖是適用於簡報場合，但用於其他需要娛興效果之場 合時，其相當有限之投射形狀變化並無法產生有效之視覺 娛樂性，且缺少能夠與外界元素（如音樂、影像）而同步相對 應產生圖像的功能，進而使其無法應用於需要娛樂效果之 領域。 【發明内容】 因此本發明之目的，即在提供一種可隨著外界音樂 3 201019293 而投射出多種圖像變化的雷射成像裝置β 於是’本發明之雷射成像裝置，包含：一基座、一訊 號產生單元、一控制單元、一選擇單元、一壓電致動器、 一反射片，及一雷射光源。 該訊號產生單元是設置於該基座上，並產生一第一訊 號。 該控制單元是設置於該基座上，並可依據該第一訊號 而產生一第二訊號並輸出。 該選擇單元是設置於該基座上’並與該控制單元電連 接’且疋選擇該控制單元對該第一訊號之處理方式以使其 產生相對應之第二訊號。 該壓電致動器是設置於該基座上並與該控制單元電連 接’以接收該控制單元所輸出之第二訊號，並依據該第二 訊號產生相對應之形變。 該反射片是設置於該壓電致動器上，並隨著該壓電致 動器產生相對應之形變。 該雷射光源是設置於該基座上，並投射出一雷射光束 至該反射片上再藉由該反射片反射出，以藉由該反射片依 據該第二訊號所產生之形變而投射出相對應形狀之雷射光 〇 本發明之功效在於，利用該控制單元以接收該訊號產 生單元之第一訊號，以將該第一訊號轉換為可用於使該壓 電致動器產生相對應形變之第二訊號，進而使該反射片隨 著該壓電致動器產生形變，使其所反射之雷射光束可依據 201019293 該聲音訊號而產生光形變化。 【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 以下配合參考圖式之二個較佳實施例的詳細說明中，將可 清楚的呈現。 在本發明被詳細描述之前，要注意的是，在以下的說 明中，類似的元件是以相同的編號來表示。 如圖2、3所示，本發明雷射成像裝置2之第一較佳實 β 施例，包含：一基座21、一訊號產生單元20、一控制單元 22、一壓電致動器23、一反射片24、一反光片27、一折射 元件26、一雷射光源25、一連接埠29，及一選擇單元28 〇 該訊號產生單元20是設置於該基座21上，並可產生 一第一訊號201。該連接埠29是設置於該基座21上，並與 該控制單元22及一可輸出聲音訊號ι〇1之外界音源1〇〇電 連接。在此要注意的是’上述之外界音源1〇()可為音響、 ® 電腦，或隨身聽等音樂播放設備，而其輸出介面及訊號規 格等皆應為業界習知的技術，在此即不加以贅述。 值得注意的是，在本實施例中，由於是利用一可輸出 聲音訊號101之外界音源100來作為訊號來源，因此該訊 號產生單元20即不會作動。 該控制單元22是設置於該基座21上，並藉由該連接 埠29而接收該外界音源1〇〇之聲音訊號1(Η，且是將該外 界音源100所輸出之聲音訊號1〇1進行處理後輸出一第二 5 201019293 訊號221。在本實施例中，該控制單元22是依據該聲音訊 號ιοί之頻率區段來產生不同頻率的該第二訊號221，例如 ，當該聲音訊號1〇1之頻率是位於1〇〇Hz〜lkHz之頻率範圍 内時，該控制單元22所產生的第二訊號22丨即為一 100Hz 之正弦波，當該聲音訊號1〇1之頻率是位於lkHz〜2kHz之 頻率範圍内時，該控制單元22所產生的第二訊號221即呈 一 200Hz之正弦波，並以此類推，進而使該第二訊號221 疋可對應該聲音訊號101改變，並輸出至該壓電致動器23 使其產生相對應之形變。 在此要注意的是，在本實施例中，是依據該聲音訊號 ιοί之頻率來決定該第二訊號221之頻率，但是，也可利用 該聲音訊號101之振幅來決定該第二訊號221之頻率，另 外，在本實施例中，是採用變換該第二訊號221之頻率， 但也可以採用變換該第二訊號221之振幅或相位的方式， 端視實際實施時的考量而定，因此並不因侷限於本實施例 所揭露之特定態樣。 此外，本實施例更可配合一設置於該基座21上並與該 控制單元22電連接的選擇單元28，該選擇單元28是選擇 該控制單元22對該聲音訊號1G1之處理方式，使其產生相 對應之第二訊號221 ’以供使用者選擇是要依據該聲音訊號 ιοί之頻率或振幅來決定該第二訊號221之頻率、振幅或相 位，以藉此選擇該該壓電致動器23的驅動模式。 至於能夠達成上述功能的電路結構及操作手段，應為 所屬技術領域中具有通常知識者所熟悉的，在此即不加以 201019293 贅述。 該壓電致動H 23是設置於該基座21上並與該控制單 元22電連接，以接收該控制單元22所輸出之第二訊號221 ，並依據該第二訊號221產生相對應之形變，在本實施例 中’ β亥壓電致動器23為-|電㈣片，並可隨著輸入訊號 之振幅、頻率、極性，或是相位以產生相對應的撓曲變形 或振盈。 該反射片24具有一本體部241、一與該本體部241相 連接並與該本體部241之間形成一夾角的反射部242，及一 形成於該反射部242上的缺口 243,該壓電致動器23是設 置於該本體部241上。當該壓電致動器23依據該第二訊號 221而產生形變或震動時，即會連動該本體部241及該反射 部242隨之產生形變、位移或震動，且由於該反射部242 上形成有一缺口 243，即會導致該反射部242因為整體結構 較弱，且非為對稱之態樣，進而使其振盪的幅度更大。 該雷射光源25是設置於該基座21上，並投射出一雷 射光束至該反射片24之反射部242上並反射出，以藉由該 反射片24依據該第二訊號221所產生之形變或振盪而投射 出相對應形狀之雷射光，而用於產生該雷射光源25之設備 ’應為業界中相當習知的技術’在此即不對其進行介紹。 在此要注意的是，在本實施例中，是採用在該反射片 24之反射部242上貼設有一由反光材質所製成之反光片27 的方式，以反射自該雷射光源25所投射出的雷射光束，但 是，也可利用該反射片24自然之反光特性（例如以金屬製成 201019293 該反射片24) ’並對該反射片24之反射部242進行拋光處 理’以對該雷射光源25所產生的雷射光束進行反射。 該折射元件26是與設置於該基座21上，並位於該雷 射光束反射後的行經路徑上，以將經由該反光片27所反射 出之雷射光是透過該折射元件26產生折射後再投射出該基 座21外，以藉由該折射元件26之光學折射效果而產生進 一步的光形變化》在本實施例中，該折射元件26為一凹透 鏡’以達到散射之光形，但是至於實際實施時要使用何種 形狀或折射率之透鏡或綾鏡，則視所欲達成之視覺效果而 定，因此並不應侷限於本實施例所揭露之態樣。 參閱圖4，本較佳實施例是安裝於一汽車200上，並與 該汽車200之音響系統相整合地而將隨著音樂變化的雷射 光束投射於路（地）面上，進而產生炫目之視覺效果。 藉由上述設計，本發明之雷射成像裝置2，具有下列優 點： 1·可依據音樂變換投射出之圖樣，視覺娛樂性佳： 藉由預先設定之條件來對一聲音訊號1〇1進行 處理，使該壓電致動器23之形變與振盪即可隨著 該聲音訊號101改變，因此可與音樂之頻率或音量 大小相配合地產生具有互動性的圖樣變化，以讓觀 賞者可在聽到音樂時，同時看到隨著音樂而變化的 投射圖形，進而使本發明適合被使用於需要高度音 效/視覺整合及娛樂性的場所中，例如派對、夜店、 或是改裝車等（如圖4所示）。 201019293 2.光學變化性佳： 本發明更可進-步藉由該折射元件％來對投 射出之雷射光束進行光形調整，例如使用凹、凸透 鏡或綾鏡等來達到其相對應的光學折射效果，使投 射出之雷射光束更具有變化性。 回顧圖2、3，本發明雷射成像裝置2之第二較佳實施 例，大致上是與該第一較佳實施例相同，相同之處不再贅 言’其中不相同之處在於：該控制單元22是接收該訊號產 • 生單元2〇之第一訊號20卜且是將該第-訊號2()1進行處 理後輸出-第二訊號22卜在本實施例中，該控制單元22 是依據該第-訊號2()1之頻率區段來產生不同頻率的該第 二訊號221 ’但是’也可利用該第一⑽2〇ι之振幅來決定 該第二訊號221之頻率，另外，在本實施例中是採用變 換該第二訊號221之頻率’但也可以採用變換該第二訊號 221之振幅或相位的方式，端視實際實施時的考量而定，因 此並不因侷限於本實施例所揭露之特定態樣。 β 本實施例藉由該訊號產生單元20產生之第-訊號201 來作為訊號之來源’使本實施例在不需與外界音源】⑼配 合的情況下同樣可作動。 虽然在本實施例中，也可利用該選擇28以供使 用者選擇是要依據該第一訊號2〇1之頻率或振幅來決定該 第-訊號221之頻率、振幅或相位，以藉此選擇該該壓電 致動器23的驅動模式。 歸納上it <發明之雷射成像裝置2,利用該控制單元 201019293 22接收外界音源1 〇〇並進行相對應之處理，使其可控制該 壓電致動器23產生相對應的形變或振盡，並連動該反射片 24之本鱧部241使其帶動該反射部242振動，進而使其所 反射之雷射光束是隨著外界音源100之聲音訊號1〇1而相 對應的產生形狀’再藉由該折射元件26調整其投射光形， 以達到良好的音效/視覺整合性及娛樂性，故確實能達到本 發明之目的。 惟以上所述者，僅為本發明之較佳實施例而已，當不 能以此限定本發明實施之範圍，即大凡依本發明申請專利❹ 範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。 【圖式簡單說明】 圖1是一俯視示意圖，說明習知的一雷射成像裝置； 圖2是一俯視示意圖’說明本發明雷射成像裝置之第 一、二較佳實施例； 圖3疋一剖視圖’說明沿圖2中割面線ΠΙ所示之剖視 情形；及 ⑩ 圖4是一使用狀態示意圖，說明該第一較佳實施例安 裝於一汽車上之情形。 10 201019293 【主要元件符號說明】 2…… •…雷射成像裝置 243… •…缺口 20·.·.· …·訊號產生單元 25"... 雷射光源 201… —第 訊號 26··.·. •…折射元件 21 ·.··· …·基座 27··... •…反光片 22····. …·控制單元 28••… •…選擇單元 221 ··· •…第二訊號 29·.·.· •…連接埠 23••… •…壓電致動器 100… •…外界音源 24 …·反射片 101… •…聲音訊號 241… •…本體部 200… •…汽車 242… •…反射部 11201019293 « VI. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to an imaging apparatus, and more particularly to a laser imaging apparatus. [Prior Art] As shown in FIG. 1, a conventional laser imaging apparatus (for example, a laser pen commonly used in briefing occasions) has a metal sheet body u, a laser light source 12, a frequency adjuster 13', and - Piezoelectric ceramics 14, which form a #有-refractive surface (1)' and the surface (1) is polished (or attached with a reflective material) to reflect the laser light source 12 a beam of light (shown as an imaginary line in the figure), the piezoelectric ceramic sheet 14 is attached to the sheet metal H and electrically connected to the frequency adjuster 13 to adjust the frequency adjuster 13 The resonant frequency of one of the piezoelectric ceramic sheets 14 is further shifted or deformed by the metal sheet 11 so that the laser beam reflected by the curved surface η can be displaced or deformed according to the corresponding displacement of the gold sheet U. A straight line or circle shape is projected. ® However, the above-mentioned laser imaging device has only two projection shape modes. Although it is suitable for briefing occasions, when it is used in other occasions where entertainment effects are required, its relatively limited projection shape change cannot be effective. Visually entertaining, and lacking the ability to generate images in sync with external elements (such as music, video), making it unsuitable for applications that require entertainment. SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a laser imaging apparatus that can project a plurality of image changes along with external music 3 201019293. Thus, the laser imaging apparatus of the present invention comprises: a pedestal, A signal generating unit, a control unit, a selecting unit, a piezoelectric actuator, a reflecting sheet, and a laser light source. The signal generating unit is disposed on the base and generates a first signal. The control unit is disposed on the base and generates a second signal according to the first signal and outputs the second signal. The selection unit is disposed on the base and electrically connected to the control unit and selects the control unit to process the first signal to generate a corresponding second signal. The piezoelectric actuator is disposed on the base and electrically connected to the control unit to receive a second signal output by the control unit, and generates a corresponding deformation according to the second signal. The reflection sheet is disposed on the piezoelectric actuator and deforms correspondingly with the piezoelectric actuator. The laser light source is disposed on the pedestal, and a laser beam is projected onto the reflective sheet and reflected by the reflective sheet to be projected by the reflective sheet according to the deformation generated by the second signal. The effect of the present invention is to use the control unit to receive the first signal of the signal generating unit to convert the first signal into a corresponding deformation that can be used to cause the piezoelectric actuator to be correspondingly deformed. The second signal further causes the reflective sheet to deform along with the piezoelectric actuator, so that the reflected laser beam can produce a light shape change according to the sound signal of 201019293. The above and other technical contents, features and effects of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention. Before the present invention is described in detail, it is noted that in the following description, like elements are denoted by the same reference numerals. As shown in FIG. 2 and FIG. 3, the first preferred embodiment of the laser imaging apparatus 2 of the present invention comprises: a base 21, a signal generating unit 20, a control unit 22, and a piezoelectric actuator 23. a reflective sheet 24, a reflective sheet 27, a refractive element 26, a laser source 25, a port 29, and a selection unit 28. The signal generating unit 20 is disposed on the base 21 and can be A first signal 201. The connection port 29 is disposed on the base 21 and electrically connected to the control unit 22 and an external sound source 1 that can output an audio signal ι〇1. It should be noted here that 'the above-mentioned external sound source 1〇() can be a music playback device such as an audio, a computer, or a Walkman, and its output interface and signal specifications should be well-known technologies in the industry. Do not repeat them. It should be noted that in this embodiment, since the source 100 of the output sound signal 101 is used as the source of the signal, the signal generating unit 20 does not operate. The control unit 22 is disposed on the base 21, and receives the sound signal 1 of the external sound source 1 by the connection port 29 (Η, and the sound signal 1〇1 output by the external sound source 100 After processing, a second 5 201019293 signal 221 is output. In this embodiment, the control unit 22 generates the second signal 221 of different frequencies according to the frequency segment of the audio signal ιοί, for example, when the audio signal 1 When the frequency of 〇1 is in the frequency range of 1 〇〇 Hz to 1 kHz, the second signal 22 generated by the control unit 22 is a 100 Hz sine wave, when the frequency of the sound signal 1 〇 1 is at 1 kHz. When the frequency range is less than 2 kHz, the second signal 221 generated by the control unit 22 is a 200 Hz sine wave, and so on, so that the second signal 221 can be changed corresponding to the audio signal 101, and output. The piezoelectric actuator 23 is caused to deform correspondingly. It should be noted that, in this embodiment, the frequency of the second signal 221 is determined according to the frequency of the audio signal ιοί, but also The sound signal 10 can be utilized The amplitude of 1 determines the frequency of the second signal 221. In addition, in this embodiment, the frequency of the second signal 221 is used, but the amplitude or phase of the second signal 221 may be changed. Depending on the actual implementation, it is not limited to the specific aspect disclosed in the embodiment. In addition, the embodiment can be further configured to be disposed on the base 21 and electrically connected to the control unit 22. The selecting unit 28 is configured to select the processing mode of the audio signal 1G1 by the control unit 22 to generate a corresponding second signal 221 ′ for the user to select according to the frequency or amplitude of the audio signal ιοί The frequency, amplitude or phase of the second signal 221 is determined to thereby select the driving mode of the piezoelectric actuator 23. The circuit structure and the operating means capable of achieving the above functions should be generally in the technical field. The familiarity of the knowledge, here is not described in 201019293. The piezoelectric actuation H 23 is disposed on the base 21 and electrically connected to the control unit 22 to receive the control list. The second signal 221 is outputted by the second signal 221, and the corresponding deformation is generated according to the second signal 221. In the embodiment, the 'β-piezoelectric actuator 23 is -|electric (four) piece, and can be input signal The amplitude, the frequency, the polarity, or the phase to generate a corresponding flexural deformation or vibration. The reflection sheet 24 has a body portion 241, and is connected to the body portion 241 and forms an angle with the body portion 241. a reflective portion 242 and a notch 243 formed on the reflective portion 242. The piezoelectric actuator 23 is disposed on the main body portion 241. When the piezoelectric actuator 23 is generated according to the second signal 221 When deformed or vibrated, the body portion 241 and the reflecting portion 242 are deformed, displaced or vibrated, and a notch 243 is formed on the reflecting portion 242, which causes the reflecting portion 242 to be weak due to the overall structure. And not a symmetrical aspect, which in turn makes it more oscillating. The laser source 25 is disposed on the pedestal 21 and projects a laser beam onto the reflective portion 242 of the reflective sheet 24 and is reflected by the reflective sheet 24 according to the second signal 221 The laser light is deformed or oscillated to project a correspondingly shaped laser light, and the apparatus for generating the laser light source 25 'should be a well-known technique in the industry' will not be described here. It is to be noted that, in this embodiment, a reflective sheet 27 made of a reflective material is attached to the reflecting portion 242 of the reflective sheet 24 to reflect from the laser light source 25. The projected laser beam, however, the natural reflective property of the reflective sheet 24 (for example, the reflective sheet 24 made of metal 201019293) and the polishing of the reflective portion 242 of the reflective sheet 24 can be utilized. The laser beam generated by the laser source 25 is reflected. The refracting element 26 is disposed on the pedestal 21 and located on the path of the laser beam after reflection, so that the laser light reflected by the illuminating sheet 27 is refracted through the refracting element 26 Projecting outside the susceptor 21 to produce a further change in shape by the optical refraction effect of the refracting element 26. In the present embodiment, the refracting element 26 is a concave lens 'to achieve a scattered light shape, but as for The shape or refractive index of the lens or frog mirror to be used in actual implementation depends on the visual effect desired, and therefore should not be limited to the embodiment disclosed in the embodiment. Referring to FIG. 4, the preferred embodiment is mounted on a car 200 and integrated with the sound system of the car 200 to project a laser beam that changes with music onto the road (ground) surface, thereby generating glare. The visual effect. With the above design, the laser imaging apparatus 2 of the present invention has the following advantages: 1. The image can be projected according to the music transformation, and the visual entertainment is good: the audio signal 1〇1 is processed by a preset condition. The deformation and oscillation of the piezoelectric actuator 23 can be changed along with the sound signal 101, so that an interactive pattern change can be generated in conjunction with the frequency or volume of the music so that the viewer can hear it. In music, while seeing the projected graphics that change with the music, the invention is suitable for use in places that require high sound/visual integration and entertainment, such as parties, nightclubs, or modified cars (see Figure 4). Shown). 201019293 2. Excellent optical variability: The present invention can further adjust the projected laser beam by the refractive element %, for example, using a concave, convex lens or a frog mirror to achieve its corresponding optics. The refraction effect makes the projected laser beam more versatile. Referring back to Figures 2 and 3, the second preferred embodiment of the laser imaging apparatus 2 of the present invention is substantially the same as the first preferred embodiment, and the same is no longer in common. 'The difference is that the control The unit 22 is configured to receive the first signal 20 of the signal generating unit 2 and output the second signal 22 after processing the first signal 2 () 1 . In the embodiment, the control unit 22 is The second signal 221 ' of different frequencies is generated according to the frequency segment of the first signal 2 () 1 but the amplitude of the first signal (10) 2 〇 ι can also be used to determine the frequency of the second signal 221, and In this embodiment, the frequency of the second signal 221 is changed, but the amplitude or phase of the second signal 221 may be changed, depending on the actual implementation considerations, and thus is not limited to the implementation. The specific aspects disclosed in the examples. In this embodiment, the first signal generated by the signal generating unit 20 is used as the source of the signal. This embodiment can be operated in the same manner without the need to cooperate with the external sound source (9). In this embodiment, the selection 28 can also be utilized for the user to select the frequency, amplitude, or phase of the first signal 221 according to the frequency or amplitude of the first signal 2〇1 to select The driving mode of the piezoelectric actuator 23. In summary, the laser imaging device 2 of the present invention uses the control unit 201019293 22 to receive the external sound source 1 〇〇 and perform corresponding processing so that the piezoelectric actuator 23 can be controlled to generate a corresponding deformation or vibration. The base portion 241 of the reflection sheet 24 is linked to cause the reflection portion 242 to vibrate, so that the reflected laser beam is generated in accordance with the sound signal 1〇1 of the external sound source 100. The refractive light is further adjusted by the refractive element 26 to achieve good sound/visual integration and entertainment, so that the object of the present invention can be achieved. However, the above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention. All remain within the scope of the invention patent. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a top plan view showing a conventional laser imaging apparatus; Fig. 2 is a top plan view showing the first and second preferred embodiments of the laser imaging apparatus of the present invention; 1 is a cross-sectional view showing a cross-sectional view taken along line ΠΙ in FIG. 2; and FIG. 4 is a schematic view showing a state in which the first preferred embodiment is mounted on a vehicle. 10 201019293 [Description of main component symbols] 2... •...Laser imaging device 243... •...notch 20·······Signal generating unit 25"... Laser light source 201... - Signal 26··. ··•...Reflecting element 21 ·······Base 27··...•...Reflective sheet 22·······Control unit 28••... •...Selection unit 221 ··· •... Second signal 29·····•...Connect 埠23••... •... Piezo Actuator 100... •...External sound source 24 ...·Reflective sheet 101...•...Sound signal 241... •... Body unit 200... ...car 242... •...reflector 11