TWM337917U - Laser module - Google Patents

Laser module Download PDF

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Publication number
TWM337917U
TWM337917U TW97204323U TW97204323U TWM337917U TW M337917 U TWM337917 U TW M337917U TW 97204323 U TW97204323 U TW 97204323U TW 97204323 U TW97204323 U TW 97204323U TW M337917 U TWM337917 U TW M337917U
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Taiwan
Prior art keywords
filter
laser module
disposed
piezoelectric element
light
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Application number
TW97204323U
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Chinese (zh)
Inventor
Yung-Kuang Liu
Hsien-Chang Chen
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Young Optics Inc
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Application filed by Young Optics Inc filed Critical Young Optics Inc
Priority to TW97204323U priority Critical patent/TWM337917U/en
Publication of TWM337917U publication Critical patent/TWM337917U/en

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  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)

Abstract

A laser module including a carrying unit, a light-emitting device, a nonlinear optical crystal, a filter, and a piezoelectric element is provided. The light-emitting device is disposed on the carrying unit and capable of providing a first beam. The nonlinear optical crystal is disposed on the carrying unit and on a transmission path of the first beam. The nonlinear optical crystal is capable of converting a first portion of the first beam into a second beam, and being passed through by a second portion of the first beam. The filter is disposed on the carrying unit and on a transmission path of the second portion of the first beam and the second beam from the nonlinear optical crystal. The filter is capable of being passed through by the second beam and capable of reflecting the first beam. The piezoelectric element is disposed between the filter and the carrying unit.

Description

M337917 八、新型說明: 【新型所屬之技術領域】 ㈣if作是有關於—種光賴組,且_是有關於-種 雷射挨組。 @ 【先前技術】 由於雷射具有良好的單光性,將不同顏色的雷射电人 杈衫衣置的領域中。隨著科技的演進,現今已有許多 的雷射被研發出來,包括半導體雷射、氣體雷射、染料 射、固態準分子雷射、非線性雷射…等。半導體雷射的ς 積小,因此常可見到其應用於家電用品中,例如光碟機、 雷射印表機…等。當雷射應用於投影裝置中時,一般而言 需將紅光雷射、綠光雷射及藍光雷射搭配使用,以產生^ 光。然而,目前尚沒有能夠發出綠光的半導體雷射,因此 運用許多技術以產生綠光雷射。 種習知應用於投影裝置中的綠光雷射是採用 Novalux延伸共振腔面射型雷射(N〇valux Extended以乂办 Surface Emitting Laser,NECSEL)。NECSEL 是利用一紅 外光面射型絲與-體積布拉格光栅之間距形成一外部共 振腔,並在外部共振射配置—麵性錢減(nQnlinear frequency-doubling crystal),以將紅外光面射型光源所發 出的紅外光轉變為綠光。 隨著市场對投影裝置所投影出的影像之亮度的要求 越來越高,NECSEL所發出麟色同束之強度也越來 M337917 越高。發光強度高的雷射對人體會 Γ备調光束直射到眼睛時=2 m不法人士有藉由賭買採用雷射之投 =哭置中的!射拆解出來以改裝成具傷害 免帝射;二:j而’目則的雷射並無任何機制可以避 免田射在iH雜鮮當崎解叫裝成。 【新型内容】 地抵供—種料模組’魏避免在出碰被不當 人體傷害性大的武器,且其在長時間使 用後的維修較簡易。 一本創作之-實施例提供—種雷射模組,其包括一承載 早几、-發光元件、-非線性光學晶體_cai crystal )、—濾、光器以及一壓電元件(p^〇electric dement)。發光元件崎於承鮮&,絲於提供一第 :光束。非線性絲晶體配置於承鮮&上,並位於第一 ,束的傳祕徑上。非雜光學晶體適於將第—光束的一 =厂部^轉換為—第二光束,並讓第—光束的—第二部分 穿透。、ΐ,光束的波長大於第—光束的波長。縣器配置 =承載單兀上,並位於來自非線性光學晶體之第一光束的 第二部分及第二光束之傳遞職上。濾絲適於讓第二光 束穿透,且適於反射第一光束的第二部分。壓電元件配置 於濾、光器與㈣單元之間。當通電至壓電元件時,壓電元 件會沿著一形變方向產生一形變量,以改變第一光束之第 —口P刀的主光線入射濾光器之一入射角。 M337917 自作之-實施例中,承載單元包括一散熱座(heat 固定架。發光元件是配置於散熱座上。固定 j接至散熱座,其中非線性絲晶體、濾光器及壓電元 件疋㈣^固定架上。承載單元可更包括一渡光器固定座 以及-固疋膠。渡光器固定座配置於濾光器與固定架之 . 匕而壓電元件是配置於濾光器與濾、光器蚊座之間。固 .疋膠配置於濾光器固定座與固定架之間,以將濾光器固定 • 麵疋於固定架上。濾光器的-端可承靠濾光ϋ固定座, 而另一端可承靠壓電元件。 一在本創作之一實施例中,雷射模組更包括一驅動單 元/、屯丨生連接至壓電元件,並供應一預設電流至壓電元 件。驅,單70可包括一記憶體,以儲存預設電流的一電流 值。當壓電元件被供應預設電流時,壓電元件的形變量會 使上述入射角實質上等於〇度。形變方向例如為壓電元件 的一擴張方向或一收縮方向。形變方向與第一光束之第二 邛为的主光線之間的一夾角例如大於〇度且小於18〇度。 在本創作之一實施例中,上述夾角實質上等於卯度。 , 在本創作之一實施例中,發光元件包括一發光層、一 ' ^射單元以及一部分穿透部分反射單元。發光層適於發出 第光束。反射單元配置於發光層的一側,以將第一光束 反射回發光層。部分穿透部分反射單元配置於發光層的另 「侧,以將部分第—光束反射,並讓另一部分第一光束穿 透。穿透部分穿透部分反射單元的部分第一光束會傳遞至 非線性光學晶體。 7 M337917 在本創作之一實施例中,反射單元與部分穿透部分反 射單元例如為为散式布拉格反射層(distributed bragg refleCti〇nlayer,DBRlayer)。非線性光學晶體為—倍頻晶 體(frequency-doubling crystal),而第一光束的波長為第 二光束的波長之兩倍。濾光器例如為一體積布拉格光栅 (volume bmgg grating )或一凹口 濾光器(仙沉)。 在本創作一實施例之雷射模組中,第一光束之第二部 分入射濾光器的入射角必須準確地落在一特定值的容限 否則第―光束的輸出功率會大幅降低,而此入射角可 藉由壓電70件之適當的形變量來轉在此特定值的容限 内。若使用者沒錢正常模式拆解騎模組,當他想要再 次使雷射馳運斜,會不知道魏加多大㈣流在壓電 兀件上,才能使壓電元件的形變量能夠讓人射鋒持在上 f定值的容限内。因此,當雷射模組被不循正常模式地 ^解而後再啟動時,1二光束的輸㈣率目人糾超出在 定值的容限範_大幅降低,所以不法人士無法將 語射模組改裝成傷害性大的武器。 易懂為之上述和其他目的、特徵和伽能更明顯 ㈣例,並配合所關式,作詳細說 【實施方式】 創侧朗是參相加關式,—例示本 後 左 右 j 8 M337917 =參==:此,的方向用語是 圖1A為本創作—實施例之雷射模組的立體示意圖, ^ :、、、、圖1A之雷射模組的侧視圖,圖為圖1B之雷M337917 VIII. New description: [New technical field] (4) If the work is related to the kind of light, and _ is related to the type of laser. @ [Prior Art] Because of the good single-lightness of the laser, the lasers of different colors are placed in the field of clothing. With the evolution of technology, many lasers have been developed, including semiconductor lasers, gas lasers, dye jets, solid-state excimer lasers, and nonlinear lasers. Semiconductor lasers have a small accumulation, so they are often found in household appliances such as CD players, laser printers, etc. When a laser is used in a projection device, it is generally required to use a red laser, a green laser, and a blue laser to generate a light. However, there are currently no semiconductor lasers that emit green light, so many techniques are used to produce green lasers. The green laser used in projection devices is a Novalux extended cavity surface-emitting laser (N〇valux Extended for Surface Emitting Laser, NECSEL). NECSEL uses an infrared light-emitting type wire and a volumetric Bragg grating to form an external resonant cavity, and an external resonant radiation configuration (nQnlinear frequency-doubling crystal) to infrared light-emitting type light source The emitted infrared light turns into green light. As the market demands for the brightness of the image projected by the projection device is getting higher and higher, the strength of the lining of the NECSEL is higher and the M337917 is higher. A laser with a high luminous intensity will prepare the human body to direct the beam to the eye = 2 m. The unscrupulous person has to use the laser to buy a laser to use the sneak shot = crying in the middle! 2: j and 'the laser does not have any mechanism to avoid the field shot in the iH miscellaneous. [New content] Ground-to-supply----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- A creative embodiment provides a laser module comprising a carrier, a light-emitting element, a nonlinear optical crystal, a filter, an optical device, and a piezoelectric element (p^〇) Electric dement). The illuminating element is in the form of a fresh light & The nonlinear filament crystal is placed on the fresh & and is located at the first, the path of the beam. The non-missing optical crystal is adapted to convert a = factory portion of the first beam into a second beam and a second portion of the first beam. , ΐ, the wavelength of the beam is greater than the wavelength of the first beam. The county device configuration is carried on a single raft and is located at the transmission of the second portion of the first beam from the nonlinear optical crystal and the second beam. The filter filament is adapted to penetrate the second beam and is adapted to reflect the second portion of the first beam. The piezoelectric element is disposed between the filter and the (4) unit. When energized to the piezoelectric element, the piezoelectric element generates a shape variable along a deformation direction to change an incident angle of the chief ray incident filter of the first-port P-pole of the first beam. In the embodiment, the carrying unit comprises a heat sink (heat holder). The light emitting element is disposed on the heat sink. The fixing j is connected to the heat sink, wherein the nonlinear wire crystal, the filter and the piezoelectric element are (4) ^ Fixing frame. The carrying unit may further comprise a damper holder and a solid gutta-percha. The damper holder is disposed on the filter and the fixing frame. The piezoelectric element is disposed in the filter and the filter Between the mosquito and the mosquito, the solid silicone is disposed between the filter holder and the holder to fix the filter and the surface of the filter. The filter can be shielded at the end. The cymbal holder and the other end can bear against the piezoelectric element. In one embodiment of the present invention, the laser module further includes a driving unit /, the twin is connected to the piezoelectric element, and supplies a predetermined current To the piezoelectric element, the drive unit 70 may include a memory for storing a current value of the preset current. When the piezoelectric element is supplied with a preset current, the shape variable of the piezoelectric element causes the incident angle to be substantially equal to The direction of deformation is, for example, an expansion direction of the piezoelectric element or a The angle of contraction. The angle between the direction of deformation and the chief ray of the second beam of the first beam is, for example, greater than the twist and less than 18 degrees. In one embodiment of the present invention, the angle is substantially equal to the twist. In an embodiment of the present invention, the light-emitting element includes a light-emitting layer, a light-emitting unit, and a portion of the light-transmitting portion, and the light-emitting layer is adapted to emit a first light beam. The reflective unit is disposed on one side of the light-emitting layer to A light beam is reflected back to the light emitting layer. The partially penetrating partial reflection unit is disposed on the other side of the light emitting layer to reflect a portion of the first light beam and allow another portion of the first light beam to penetrate. The penetrating portion penetrates the portion of the partially reflecting unit The first beam is transmitted to the nonlinear optical crystal. 7 M337917 In one embodiment of the present invention, the reflecting unit and the partially penetrating partial reflecting unit are, for example, a distributed bragg refleCti〇nlayer (DBRlayer). The linear optical crystal is a frequency-doubling crystal, and the wavelength of the first beam is twice the wavelength of the second beam. For example, the filter It is a volume bmgg grating or a notch filter. In the laser module of the present embodiment, the incident angle of the second portion of the first beam incident filter must be Accurately falling within a certain value tolerance, otherwise the output power of the first beam will be greatly reduced, and this angle of incidence can be transferred to the tolerance of this specific value by the appropriate shape variable of the piezoelectric 70 piece. The person has no money to disassemble the ride module in normal mode. When he wants to make the laser run oblique again, he will not know that Weijiaduo (four) flows on the piezoelectric element, so that the shape variable of the piezoelectric element can be shot. The front is held within the tolerance of the upper f. Therefore, when the laser module is not activated in the normal mode and then restarted, the output of the two beams is corrected beyond the tolerance of the fixed value. _ drastically reduced, so the lawless person could not convert the speech module into a weapon with a lot of damage. It is easy to understand that the above and other purposes, characteristics and gamma can be more obvious (four), and in accordance with the relevant type, for the detailed description [implementation] Chuang side Lang is the parallel plus, - exemplify the left and right j 8 M337917 = The direction of the reference ==: This is the perspective view of the laser module of the present invention, which is a side view of the laser module of FIG. 1A, and the side view of the laser module of FIG. 1A.

土旲、、且〜著Μ線的剖面示意圖,而圖1D為圖中之發 光凡件的細部剖面示意圖。請參照目1A至圖m,本實施 例之雷射权組100包括一承載單元11G、一發光元件㈣、 一非線性光學晶體130、一濾光器140以及一壓電元件 。發光元件120配置於承載單元11〇上,並適於提供一 第光束120a (如圖1C所繪示)。在本實施例中,發光 =件120包括一發光層122、一反射單元124以及一部分 牙透邛分反射單元126 (如圖id所緣示)。當雷射模組 1〇〇剛開始運作時,發光層122會發出一初始光束12〇i。 初始光束120i在反射單元124與部分穿透部分反射單元 126之間經多次反射後,部分初始光束12〇丨會依序穿透部 分牙透部分反射單元126、穿透非線性光學晶體130、被濾 光器140反射、再次穿透非線性光學晶體13〇、再次穿透 部分穿透部分反射單元丨26、穿透發光層122以及被反射 單元124反射,並接著在反射單元124與濾光器丨4〇之間 來回多次反射而產生共振。此共振現象會導致發光層122 產生激發幅射而發出第一光束12〇a,其中第一光束120a 為同調光束。 反射羊元124配置於發光層122的一侧,以將第一光 束120a反射回發光層122。部分穿透部分反射單元126配 9 M337917 置於發光層122的另一側,以將部分第一光束120a反射回 發光層122,並讓另一部分第一光束120a穿透。穿透部分 穿透部分反射單元的部分第一光束120a會傳遞至非線性 光學晶體130。在本實施例中,反射單元124與部分穿透 部分反射單元126皆為分散式布拉格反射層,而發光層122 例如為一量子井(quantum well)。此外,部分穿透部分反 射單元126可配置於一基板128上。FIG. 1D is a schematic cross-sectional view of a light-emitting part of the soil. Referring to the items 1A to m, the laser right set 100 of the present embodiment includes a carrying unit 11G, a light emitting element (4), a nonlinear optical crystal 130, a filter 140, and a piezoelectric element. The light emitting element 120 is disposed on the carrying unit 11A and is adapted to provide a first light beam 120a (as shown in FIG. 1C). In the present embodiment, the illuminating element 120 includes a luminescent layer 122, a reflecting unit 124, and a portion of the opaque reflecting unit 126 (as shown in the id). When the laser module 1 is initially in operation, the illuminating layer 122 emits an initial beam 12 〇 i. After the initial beam 120i is reflected multiple times between the reflecting unit 124 and the partially penetrating portion reflecting unit 126, a part of the initial beam 12 穿透 sequentially penetrates the partial permeable portion reflecting unit 126, penetrates the nonlinear optical crystal 130, Reflected by the filter 140, again penetrates the nonlinear optical crystal 13〇, penetrates the partially transmissive partial reflection unit 丨26, penetrates the luminescent layer 122, and is reflected by the reflective unit 124, and then is reflected and reflected by the reflective unit 124. The device 多次 4〇 is repeatedly reflected back and forth to generate resonance. This resonance phenomenon causes the luminescent layer 122 to generate an excitation radiation to emit a first beam 12a, wherein the first beam 120a is a coherent beam. The reflective sheep element 124 is disposed on one side of the light emitting layer 122 to reflect the first light beam 120a back to the light emitting layer 122. The partially penetrating partial reflection unit 126 is disposed on the other side of the light-emitting layer 122 to reflect a portion of the first light beam 120a back to the light-emitting layer 122 and to allow another portion of the first light beam 120a to penetrate. A portion of the first light beam 120a that penetrates a portion of the reflective unit is transmitted to the nonlinear optical crystal 130. In this embodiment, the reflective unit 124 and the partially transmissive partially reflective unit 126 are both distributed Bragg reflector layers, and the luminescent layer 122 is, for example, a quantum well. In addition, the partially penetrating portion reflecting unit 126 can be disposed on a substrate 128.

非線性光學晶體130配置於承載單元11〇上,並位於 第一光束120a的傳遞路徑上。非線性光學晶體13〇適於將 第一光束120a的一第一部分轉換為一第二光束uob,並 讓第一光束120a的一第二部分穿透,其中第二光束12〇b 的波長大於弟一光束12〇a的波長。在本實施例中,非線性 光學晶體130例如為一倍頻晶體,而第一光束12〇a的波長 例如為第二光束120b的波長之兩倍。 濾光态140配置於承載單元11〇上,並位於來自非線 性光學晶體130之第一光東施的第二部分及第二光束 120b之傳遞路徑上。遽光器⑽適於讓第二光束腸穿 且適於反射第-光束丨施的第二部分。在本實施例 中’遽光H—14G例如為—體積布拉格光柵或―凹讀光器。 壓電元件150配置於濾光器14〇與承載單元11〇之 1二在本實施财,承鮮元⑽包括—散熱座112以及 -力ΤΪ Γ。發光元件120 *配置於散熱座112上。固 ::散熱座112,其中非線性光學晶體13〇、濾 4〇及壓電元件150是配置於固定架H4上。具體而 M337917 言’在本實施例中,承載單元110更包括一濾光器固定座 116以及一固定膠118。濾光器固定座116配置於濾光器 140與固定架114之間,而壓電元件15〇是配置於濾光器 140與濾光器固定座116之間。固定膠118配置於濾光器 固定座116與固定架114之間,以將濾光器固定座116固 ^於固定架114上。在本實施例中,濾光器14〇的一端承 罪濾光态固定座116,而另一端承靠壓電元件15〇。圖lc 中所繪示的壓電元件150是以承靠濾光器14〇之遠離發光 元件120的一端為例,在其他實施例中,壓電元件15〇亦 可以是承靠濾、光器14G之靠近發光元件12()的一端。 ^當通電至壓電元件15〇時,壓電元件150會沿著一形 變方向D (如圖1C所緣示)產生—形變量,以改變第一 ^束施之第二部分的主光線人射濾光ϋ 140之-入射 2在本實施例中,形變方向〇例如為壓電元件15〇的- 方向:此外’在本實施例中,形變方向 二 a之第二部分的主光線之間的一夾角0 j J且小於議度’而圖lc中 實質上等於90度為例。 4疋乂人月以 設角:之::::2第—光束的輸出功率與濾光器的擺 而橫轴代纖謂 應於第-域巾峨轉座標對 之入射角。由^ 的主光線入射濾光器140 由圖2可知,當此人射_微觸某特定值, 11 M337917 第二光束120b的輸出功率便會大幅下降,而本實施例之壓 電=件150的形變量則是用以讓上述入射角精確地落在此 特定值的容限(tolerance)内,以確保第二光束12〇b具有 較大的輸出功率。The nonlinear optical crystal 130 is disposed on the carrying unit 11A and is located on the transmission path of the first light beam 120a. The nonlinear optical crystal 13 is adapted to convert a first portion of the first beam 120a into a second beam uob and to penetrate a second portion of the first beam 120a, wherein the wavelength of the second beam 12〇b is greater than The wavelength of a beam 12 〇 a. In the present embodiment, the nonlinear optical crystal 130 is, for example, a octave crystal, and the wavelength of the first beam 12 〇 a is, for example, twice the wavelength of the second beam 120b. The filter state 140 is disposed on the carrying unit 11A and is located on the transmission path from the second portion of the first optical optical device 130 and the second optical beam 120b. The chopper (10) is adapted to pass through the second beam and is adapted to reflect the second portion of the first beam applicator. In the present embodiment, the "lighting H-14G" is, for example, a volume Bragg grating or a "concave optical reader". The piezoelectric element 150 is disposed on the filter 14A and the carrying unit 11 in the present embodiment. The fresh element (10) includes a heat sink 112 and a heat sink 112. The light emitting element 120* is disposed on the heat sink 112. The solid: heat sink 112, wherein the nonlinear optical crystal 13A, the filter 4, and the piezoelectric element 150 are disposed on the holder H4. Specifically, in the present embodiment, the carrying unit 110 further includes a filter holder 116 and a fixing glue 118. The filter holder 116 is disposed between the filter 140 and the holder 114, and the piezoelectric element 15 is disposed between the filter 140 and the filter holder 116. The fixing glue 118 is disposed between the filter holder 116 and the holder 114 to fix the filter holder 116 to the holder 114. In the present embodiment, one end of the filter 14''' is sinned by the filter state holder 116, and the other end is supported by the piezoelectric element 15''. The piezoelectric element 150 illustrated in FIG. 1c is taken as an example of the end of the filter 14 that is remote from the light-emitting element 120. In other embodiments, the piezoelectric element 15 can also be a filter and optical device. 14G is near one end of the light-emitting element 12(). When the piezoelectric element 15 is energized, the piezoelectric element 150 generates a shape variable along a deformation direction D (as shown in FIG. 1C) to change the chief ray of the second portion of the first beam. In the present embodiment, the direction of deformation 〇 is, for example, the direction of the piezoelectric element 15 〇: in addition, in the present embodiment, between the chief rays of the second portion of the deformation direction two a An angle of 0 j J is less than the degree of negotiation and the figure lc is substantially equal to 90 degrees. 4 疋乂 月 以 : : : : : : : : : : : : : : : : : : : : : : : : : — — 第 第 第 第 第 第 光束 光束 光束 光束 光束 光束 光束 光束 光束 光束 光束The main ray incident filter 140 of ^ is known from Fig. 2, when the person _ micro touches a certain value, the output power of the 11 M337917 second beam 120b is greatly reduced, and the piezoelectric = 150 of the embodiment The shape variable is used to allow the above incident angle to accurately fall within the tolerance of this particular value to ensure that the second beam 12 〇 b has a larger output power.

在本實施例中,雷射模組1〇〇更包括一驅動單元162, 其電性連接至壓電元件15〇。具體而言,驅動單元162可 位於一電路板160上,而電路板160可透過一排線17〇電 =連,至壓電兀件15G。驅動單元162適於供應一預設電 /现至壓電元件15〇,以使壓電元件15〇的形變量讓上述入 射角精確落在上述特定值的容限内。舉例而言,在本實施 例中,當壓電元件150被供應上述預設電流時,壓電元件 的形變量^使上述人射角實質上等於G度。在本實施例 :法驅動單I 162包括—記憶體164,以儲存預設電流的 ,&值。當驅動單元162將開始提供電流至壓電元件 枯會先己憶體164讀取預設電流的電流值,然後再以 預設電流驅誠電元件15G。錢,當本實_之雷射模 ^ 100在,又有循正常模式的狀況下被拆解時,記憶體 中所儲存的預設電紅t流值會受到 後再度啟動時,驅動單元162會讀不到預^流 因而無法使壓電元件15〇適當地產生形變而使 亡述入射歧精確落在上述特定值的容㈣。如此一來, 弟一光束120b的輸出功率便會大幅降低,因此 傷害性也隨之大幅降低。所以,不法人士將 無法拆解本實施例之雷射模組刚而改裝成對人體傷害性 12 M337917 大的武器。 此外,當雷射模組100長期操作後,在某些情況下固 定,118會有微量變異,這會導致上述入射角偏離,而二 得第二光束120b的輸出功率下降。此時,可藉由重新气〜 供應至壓電元件15〇的預設電流之電流值來使上述入 回復至上述特定值的容限内,以恢復第二光束12%的輪 功率。具體而言,在本實施例中,可藉由寫入另一電^ 至圯憶體164來重設預設電流。如此一來,可以不需重 組裝雷射模組100就能簡易地修復第二光束12%的:出功 率’進而節省雷射模組1〇〇的維修成本。 綜上所述,在本創作一實施例之雷射模組中,第一 束之第二部分入射濾光器的入射角必須準確地落在一特I 值的谷限内,否則第二光束的輸出功率會大幅降低,而此 入射角是藉由壓電元件之適當的形變量來維持在此特定 的容限内。若制者沒有循正倾式拆解雷賴纟且, 想要再次使雷射模組運作時,會不知道要施加多大的:六 在壓電元件上,才能使壓電元件的形變量能夠讓入射= 持在上述特定值的容㈣。因此,#雷射被不循正 模式地拆解而後再啟動時,第二光束的輪出功率合 入射角沒落在上述特定值的容限内而大幅降低,^ ^ 人士無法將雷射模組改裝成傷害性大的武器。 此外,雷射模組在長期使用後,滤光器 許偏移,而使得上述人射角沒有落在上述特定 内,進而導致第二光束的輪出功率下降。此時可藉由纽 13In this embodiment, the laser module 1 further includes a driving unit 162 electrically connected to the piezoelectric element 15A. Specifically, the driving unit 162 can be located on a circuit board 160, and the circuit board 160 can be electrically connected through a row of wires 17 to the piezoelectric element 15G. The driving unit 162 is adapted to supply a predetermined electric/current to the piezoelectric element 15A such that the shape of the piezoelectric element 15 is such that the above-mentioned incident angle falls within the tolerance of the above specific value. For example, in the present embodiment, when the piezoelectric element 150 is supplied with the above-described preset current, the shape variable of the piezoelectric element makes the above-mentioned human angle of incidence substantially equal to G degree. In this embodiment, the method drives the single I 162 to include a memory 164 for storing the & value of the preset current. When the driving unit 162 will start to supply current to the piezoelectric element, the current value of the preset current is read by the first memory 164, and then the electrical component 15G is driven by the preset current. Money, when the real laser _ ^ 100 is in the normal mode, the default red electric current stored in the memory will be re-started, the drive unit 162 It is impossible to read the pre-flow and thus the piezoelectric element 15 is not properly deformed so that the incident incidence is accurately dropped to the above-mentioned specific value (4). As a result, the output power of the light beam 120b is greatly reduced, so the damage is greatly reduced. Therefore, the unscrupulous person will not be able to disassemble the laser module of this embodiment and just convert it into a weapon that is harmful to the human body 12 M337917. In addition, when the laser module 100 is operated for a long period of time, in some cases, there is a slight variation in 118, which causes the above-mentioned incident angle to deviate, and the output power of the second beam 120b decreases. At this time, the above-mentioned input can be restored to the tolerance of the above specific value by re-storing the current value of the preset current supplied to the piezoelectric element 15A to restore the wheel power of the second beam by 12%. Specifically, in the present embodiment, the preset current can be reset by writing another device to the memory 164. In this way, the 12% of the second beam can be easily repaired without the need to reassemble the laser module 100: the power consumption is reduced, thereby saving the maintenance cost of the laser module 1 . In summary, in the laser module of the present embodiment, the incident angle of the second partial incident filter of the first beam must accurately fall within a valley of the special I value, otherwise the second beam The output power is greatly reduced, and this angle of incidence is maintained within this particular tolerance by the appropriate shape of the piezoelectric element. If the manufacturer does not dismantle the Lei Lai 循 and if he wants to operate the laser module again, he will not know how much to apply: six on the piezoelectric element, the shape variable of the piezoelectric element can be Let the incident = hold the capacity of the above specified value (4). Therefore, when the #laser is disassembled without being rotated in the positive mode and then restarted, the rounding power of the second beam and the incident angle fall within the tolerance of the above specific value, and the laser module can not be lowered. Modified into a weapon with a lot of damage. In addition, after long-term use of the laser module, the filter is shifted, so that the above-mentioned human angle does not fall within the above specific condition, thereby causing the wheel power of the second beam to decrease. At this time, it can be used by New Zealand 13

M337917 供應至壓電元件的電絲改懸電元件的形變量,以使上 述入射角重新紅上述特定值的容限内。 重新組裝雷射模組的情況下,就讓第_ 乂在不 復,進而節省雷C的:修束的輪出功率恢 作已峨佳實施觸露如上,財並非用以 =ί=,任何所屬技術領域中具有通常知識者,在不 :==之精神!:範圍内,當可作些許之更動與潤飾, a進另=㈣關#視後社+料職目所界定者 =請專利範圍不須達成 ί押相设Η ^的或優點或特點。此外,摘要部分 Π:辅助專利文件搜尋之用’並非用來限制本 【圖式簡單說明】 ^ 3 2創作—實施例之雷射模組的立體示意圖。 圖1Β為圖1Μ雷射模組的侧視圖。 1Β之雷射模組沿著Η線的剖面示意圖。 ^ 之發光元件的細部剖面示意圖。 設角ί之:圖中之第4束的輪出功率與滤光器的擺 【主要元件符號說明】 100 :雷射模組 110 ·承載單元 Η2 :散熱座 114 :固定架 14 M337917 116 :濾光器固定座 118 :固定膠 120 :發光元件 120a :第一光束 120b ··第二光束 120i :初始光束 122 :發光層 124 ··反射單元 126 :部分穿透部分反射單元 128 :基板 130 :非線性光學晶體 140 :濾光器 150 :壓電元件 160 :電路板 162 :驅動單元 164 :記憶體 170 :排線 D :形變方向 <9 :夾角 15M337917 The wire supplied to the piezoelectric element changes the shape of the electrical component so that the above incident angle is red again within the tolerance of the above specified value. In the case of reassembling the laser module, let the _ 乂 乂 , , , , , , , , : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : Those who have the usual knowledge in the technical field, in the scope of not:== the spirit!:, when a little change and refinement can be made, a enter another = (four) off #视后社 + material job definition = please patent The scope does not have to be agreed upon or the advantages or characteristics. In addition, the summary section Π: Auxiliary Patent Document Search is not used to limit this [Simplified Description of the Drawings] ^ 3 2 Creation - The perspective view of the laser module of the embodiment. Figure 1 is a side view of the laser module of Figure 1. A schematic diagram of a section of a laser module along a rifling line. ^ A schematic cross-sectional view of the light-emitting element. Let the angle ί: the fourth round of the wheel in the figure and the pendulum of the filter [main symbol description] 100: laser module 110 · carrying unit Η 2: heat sink 114: fixed frame 14 M337917 116: filter Light fixture mount 118: Fixing glue 120: Light-emitting element 120a: First light beam 120b · Second light beam 120i: Initial light beam 122: Light-emitting layer 124 · · Reflecting unit 126: Partially penetrating partial reflecting unit 128: Substrate 130: Non- Linear optical crystal 140: Filter 150: Piezoelectric element 160: Circuit board 162: Driving unit 164: Memory 170: Cable D: Deformation direction <9: Angle 15

Claims (1)

M337917 九、申請專利範圍: 1· 一種雷射模組,包括: 一承載單元; 一發光元件,配置於該承載單元上,並適於提供一第 一光束; 一非線性光學晶體,配置於該承載單元上,並位於該 第一光束的傳遞路徑上,其中該非線性光學晶體適於將該 第一光束的一第一部分轉換為一第二光束,並讓該第一光 束的一苐一部分穿透,而該第二光束的波長大於該第一光 束的波長; 一濾光器,配置於該承載單元上,並位於來自該非線 性光學晶體之該第一光束的該第二部分及該第二光束之傳 遞路徑上,其中該濾光器適於讓該第二光束穿透,且適於 反射該第一光束的該第二部分;以及 ^左笔元件’配置於該濾'光器與該承載單元之間,其 中當通電至該壓電元件時,該壓電元件會沿著一形變方向 產生一形變量,以改變該第一光束之該第二部分的主光線 入射該濾光器之一入射角。 2·如申請專利範圍第〗項所述之雷射模組,豆 承載單元包括: 、 一散熱座,其中該發光元件是配置於該散熱座上;以 及 固疋架,連接至該散熱座,其中該非線性光學晶 體、該濾光壓電元件是配置於該固定架上。 16 M337917 t如申請專利範圍第2項所述之雷射模組,其中該 承載單元更包括: 上二濾光器固定座,配置於該濾光器與該固定架之間, 而該壓電元件是配置於該濾、光器與該濾、光器固定座之間; 以及 • 二固定膠,配置於該濾光器固定座與該固定架之間, •以將該濾光ϋ目定座固定於該固定架上。 φ 、一 如申請專利範圍第3項所述之雷射模組,其中該 濾光器的一端承靠該濾光器固定座,而另一端承靠該壓電 元件。 5·,申請專利範圍第1項所述之雷射模組,更包括 一驅動單元,電性連接至該壓電元件,並供應一預設電流 至該壓電元件。 〜 。1· _如申睛專利範圍第5項所述之雷射模組,其中該 驅動單元包括-記憶體,以儲存該預設電流的〆電流值。 一 ”7·如申睛專利範圍第5項所述之雷射模組,其中當 _該壓電元件被供應該預設電流時,該壓電元件的該形變量 •會使該入射角實質上等於〇度。 ' ^如申明專利範圍弟1項所述之雷射模組,其中該 形變方向為該壓電^件的_擴張方向或—收縮方向。 / 9·如申請專利範圍第i項所述之雷射模組,其中該 形、义方向與该第-光束之該第二部分的主光線之間的一夹 角大於〇度且小於180度。 10·如申明專利範圍第9項所述之雷射模組,其中該 17 M337917 夾角實質上等於90度。 11·如申請專利範圍第1項所述之雷射模組,其中該 發光元件包括: 一發光層,適於發出該第一光束; 一反射單元,配置於該發光層的一側,以將該第一光 束反射回該發光層;以及 一部分穿透部分反射單元,配置於該發光層的另一 =、’以將部分·_光束反射,並讓另一部分該第一光束 其巾穿透該部分穿透部分反射單元的部分該第一光 束^傳遞至該非線性光學晶體。 反射抑2·如月專利範圍第11項所述之雷射模組,其中該 層m卩分牙透部分反射單元為分散式布拉格反射 13·如申請專利範圍第1頊 非線性光學晶體為-倍頻晶體,、=:=組’其中該 第二光束顺長之兩倍。而如—光束的波長為該 14.如申請專利範圍第丨項 慮光器為—體積布拉格光柵或」凹口^^組’其中該 18M337917 IX. Patent application scope: 1. A laser module comprising: a carrying unit; a light emitting element disposed on the carrying unit and adapted to provide a first light beam; a nonlinear optical crystal disposed on the And on the carrying unit, on the transmission path of the first light beam, wherein the nonlinear optical crystal is adapted to convert a first portion of the first light beam into a second light beam, and let a part of the first light beam penetrate And the second beam has a wavelength greater than a wavelength of the first beam; a filter disposed on the carrier unit and located at the second portion of the first beam from the nonlinear optical crystal and the second beam a transmission path, wherein the filter is adapted to pass the second beam and is adapted to reflect the second portion of the first beam; and the left pen element is disposed on the filter and the carrier Between the cells, wherein when energized to the piezoelectric element, the piezoelectric element generates a shape variable along a deformation direction to change a principal ray of the second portion of the first beam into the One of the light incident angle. 2. The laser module of claim 1, wherein the bean carrying unit comprises: a heat sink, wherein the light emitting component is disposed on the heat sink; and a solid frame connected to the heat sink; The nonlinear optical crystal and the filter piezoelectric element are disposed on the fixing frame. The laser module of claim 2, wherein the carrying unit further comprises: a second filter holder disposed between the filter and the holder, and the piezoelectric The component is disposed between the filter and the optical filter and the filter holder; and the second fixing glue is disposed between the filter holder and the holder, and the filter is fixed The seat is fixed to the fixing frame. The laser module of claim 3, wherein one end of the filter bears against the filter holder and the other end bears against the piezoelectric element. 5. The laser module of claim 1, further comprising a driving unit electrically connected to the piezoelectric element and supplying a predetermined current to the piezoelectric element. ~. The laser module of claim 5, wherein the driving unit comprises a memory to store a current value of the preset current. The laser module of claim 5, wherein when the piezoelectric element is supplied with the predetermined current, the shape variable of the piezoelectric element causes the incident angle to be substantially The above is equal to the degree of 。. ^ ^ The laser module of claim 1, wherein the deformation direction is the expansion direction or the contraction direction of the piezoelectric element. The laser module of the present invention, wherein an angle between the shape and the sense direction and the chief ray of the second portion of the first beam is greater than a twist and less than 180 degrees. The laser module of the present invention, wherein the angle of the 17 M337917 is substantially equal to 90 degrees. The laser module of claim 1, wherein the illuminating element comprises: a luminescent layer adapted to emit a first light beam; a reflecting unit disposed on one side of the light emitting layer to reflect the first light beam back to the light emitting layer; and a portion penetrating the partial reflecting unit, and another one of the light emitting layer disposed in the light emitting layer Reflecting part of the beam and letting another part of the first beam The portion of the first light beam that passes through the portion of the portion that penetrates the portion of the reflecting unit is transmitted to the nonlinear optical crystal. The reflection module is a laser module according to the eleventh aspect of the invention, wherein the layer is divided into teeth. The transflective unit is a decentralized Bragg reflector. 13 As in the patent application, the nonlinear optical crystal is a frequency doubling crystal, and the =:= group 'where the second beam is twice as long as the beam. The wavelength is the 14. The scope of the invention is as follows: a volume Bragg grating or a "notch ^ ^ group"
TW97204323U 2008-03-13 2008-03-13 Laser module TWM337917U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI497108B (en) * 2010-12-29 2015-08-21 Asml Netherlands Bv Multi-pass optical apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI497108B (en) * 2010-12-29 2015-08-21 Asml Netherlands Bv Multi-pass optical apparatus

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