TW201802567A - Optical device - Google Patents
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- TW201802567A TW201802567A TW105121173A TW105121173A TW201802567A TW 201802567 A TW201802567 A TW 201802567A TW 105121173 A TW105121173 A TW 105121173A TW 105121173 A TW105121173 A TW 105121173A TW 201802567 A TW201802567 A TW 201802567A
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Abstract
Description
本發明是有關於一種光學裝置，特別係有關於一種投影機。The present invention relates to an optical device, and more particularly to a projector.
在習知技術中，投影機採用了雷射(一般為藍光雷射)搭配螢光元件，以提供光源。但在長時間的使用下，受限於螢光元件的熱衰減效應，造成螢光元件的激發效率下降。螢光元件激發效率下降的情形普遍出現在單片式數位光源處理投影機(DLP；Digital Light Processing)或三片式數位光源處理投影機(DLP；Digital Light Processing)之中。因此，改善螢光元件之散熱以提升發光效率，成為固態照明必須解決的問題。In the prior art, the projector employs a laser (typically a blue laser) with a fluorescent element to provide a light source. However, under long-term use, it is limited by the thermal attenuation effect of the fluorescent element, resulting in a decrease in the excitation efficiency of the fluorescent element. The situation in which the excitation efficiency of the fluorescent element is degraded is generally found in a monolithic digital light processing projector (DLP; Digital Light Processing) or a three-chip digital light processing projector (DLP; Digital Light Processing). Therefore, improving the heat dissipation of the fluorescent element to improve the luminous efficiency becomes a problem that solid-state lighting must solve.
有鑑於此，本發明之一目的在於提出一種可在降低降低熱累積的情形以避免螢光元件發生熱衰減效應的前提之下，進一步提升螢光元件之激發效率的光學裝置。In view of the above, it is an object of the present invention to provide an optical device which can further improve the excitation efficiency of a fluorescent element under the premise of reducing the heat accumulation and avoiding the thermal attenuation effect of the fluorescent element.
為了達到上述目的，依據本發明之一實施方式，一種光學裝置包含螢光輪以及兩光源。螢光輪具有兩螢光區段。兩螢光區段位於螢光輪之不同半徑位置且不相重疊。每一螢光區段具有複數個螢光色段。光源發射出兩光束而在螢光輪上分別提供兩光點。兩光點分別位於兩螢光區段。在螢光輪轉動期間，兩光點分別位於兩螢光區段中具有相同螢光特性的螢光色段上。In order to achieve the above object, according to an embodiment of the present invention, an optical device includes a fluorescent wheel and two light sources. The fluorescent wheel has two fluorescent sections. The two fluorescent segments are located at different radial positions of the fluorescent wheel and do not overlap. Each of the fluorescent segments has a plurality of fluorescent segments. The light source emits two beams and provides two spots on the fluorescent wheel. The two spots are located in the two fluorescent sections. During the rotation of the fluorescent wheel, the two spots are respectively located on the fluorescent segments having the same fluorescent characteristics in the two fluorescent segments.
於本發明的一或多個實施方式中，上述之光學裝置還包含濾光色輪。濾光色輪配置以接收由螢光區段激發之光線。In one or more embodiments of the present invention, the optical device further includes a filter color wheel. The filter color wheel is configured to receive light that is excited by the fluorescent section.
於本發明的一或多個實施方式中，上述之光學裝置還包含合光模組。合光模組配置以接收由螢光區段激發之光線，並將被激發之光線繼續導引至濾光色輪。In one or more embodiments of the present invention, the optical device further includes a light combining module. The illuminating module is configured to receive the light excited by the fluorescent section and continue to direct the excited light to the filter color wheel.
於本發明的一或多個實施方式中，上述之光學裝置還包含積分器。積分器配置以接收合光模組所導引之光線，並將光線繼續導出至濾光色輪。In one or more embodiments of the present invention, the optical device described above further includes an integrator. The integrator is configured to receive the light guided by the light combining module and to continue to direct the light to the filter color wheel.
於本發明的一或多個實施方式中，上述之光學裝置還包含第一驅動器、第二驅動器以及同步電路。第一驅動器配置以驅動螢光輪轉動。第二驅動器配置以驅動濾光色輪轉動。同步電路電性連接第一驅動器與第二驅動器。濾光色輪具有複數個色區。色區分別對應至任一螢光區段之螢光色段。同步電路配置以同步控制第一驅動器與第二驅動器，致使在螢光輪與濾光色輪轉動期間，由螢光區段的螢光色段中之任一者激發之光線接著照射至濾光色輪的色區中之對應者。In one or more embodiments of the present invention, the optical device further includes a first driver, a second driver, and a synchronization circuit. The first driver is configured to drive the fluorescent wheel to rotate. The second driver is configured to drive the filter color wheel to rotate. The synchronization circuit is electrically connected to the first driver and the second driver. The filter color wheel has a plurality of color zones. The color regions correspond to the fluorescent color segments of any of the fluorescent segments, respectively. The synchronization circuit is configured to synchronously control the first driver and the second driver such that light that is excited by any one of the fluorescent segments of the fluorescent segment is then illuminated to the filter color during rotation of the fluorescent wheel and the filter color wheel The corresponding person in the color area of the wheel.
於本發明的一或多個實施方式中，上述光學裝置還包含亮度控制電路。亮度控制電路電性連接光源與同步電路。亮度控制電路配置以控制光源的輸出功率，並在螢光輪轉動期間，協同同步電路使光源以具有相異之輸出功率之光線分別照射至螢光色段中具有相異螢光特性者。In one or more embodiments of the present invention, the optical device further includes a brightness control circuit. The brightness control circuit is electrically connected to the light source and the synchronization circuit. The brightness control circuit is configured to control the output power of the light source, and during the rotation of the fluorescent wheel, the cooperative synchronization circuit causes the light source to respectively illuminate the light having the different output power to the fluorescent color segment having the different fluorescent characteristics.
於本發明的一或多個實施方式中，上述之螢光色段螢光色段二螢光區段中的螢光色段中具有相同螢光特性的至少兩螢光色段的圓心角相同。In one or more embodiments of the present invention, the central angles of at least two fluorescent color segments having the same fluorescent characteristics in the fluorescent color segments in the fluorescent segment of the fluorescent segment of the fluorescent segment are the same.
於本發明的一或多個實施方式中，上述之每一螢光區段的螢光色段中具有相異螢光特性的至少兩螢光色段的圓心角相同。In one or more embodiments of the present invention, the central angles of at least two fluorescent color segments having different fluorescent characteristics in the fluorescent color segments of each of the fluorescent segments are the same.
於本發明的一或多個實施方式中，上述之濾光色輪具有複數個色區。色區分別對應至螢光區段的螢光色段。In one or more embodiments of the present invention, the filter color wheel has a plurality of color zones. The color regions correspond to the fluorescent segments of the fluorescent segment, respectively.
於本發明的一或多個實施方式中，上述之每一螢光區段的螢光色段中具有相異螢光特性的至少兩螢光色段的圓心角相異。螢光區段中的螢光色段中具有相同螢光特性者的至少兩螢光色段的圓心角相同。In one or more embodiments of the present invention, the central angles of at least two fluorescent color segments having different fluorescent characteristics in the fluorescent color segments of each of the fluorescent segments are different. The central angles of at least two fluorescent color segments of the fluorescent color segments in the fluorescent segment having the same fluorescent characteristics are the same.
於本發明的一或多個實施方式中，上述之濾光色輪具有複數個色區。色區分別對應至螢光區段的螢光色段。色區中具有相異顏色的任兩色區的的圓心角相異。In one or more embodiments of the present invention, the filter color wheel has a plurality of color zones. The color regions correspond to the fluorescent segments of the fluorescent segment, respectively. The central angles of any two color regions having different colors in the color region are different.
於本發明的一或多個實施方式中，上述之兩光點連成的直線通過螢光輪的圓心。In one or more embodiments of the present invention, the straight line connecting the two light spots passes through the center of the fluorescent wheel.
於本發明的一或多個實施方式中，上述之螢光輪還具有兩光穿透部。兩光穿透部配置以分別供兩光束穿過。當兩光穿透部中之其一藉由螢光輪之旋轉而移動至第一光點時，兩光穿透部中之另一同時位於第二光點。In one or more embodiments of the present invention, the above-mentioned fluorescent wheel further has two light penetrating portions. The two light penetrating portions are configured to respectively pass the two light beams. When one of the two light penetrating portions is moved to the first spot by the rotation of the fluorescent wheel, the other of the two light penetrating portions is simultaneously located at the second spot.
為了達到上述目的，依據本發明之另一實施方式，一種光學裝置包含螢光輪、第一螢光色段、第二螢光色段以及兩光源。螢光輪具有一弳度。第一螢光色段於螢光輪之第一半徑位置沿弳度設置，並形成第一圓心角。第二螢光色段於螢光輪之第二半徑位置沿弳度設置，並形成第二圓心角。第一螢光色段與第二螢光色段上塗佈第一螢光材料。第一圓心角與第二圓心角相同。兩光源分別形成一光點，並用以激發第一螢光色段與第二螢光色段上之第一螢光材料。當螢光輪旋轉時，適使兩光點激發第一螢光材料的時間實質上相同。In order to achieve the above object, according to another embodiment of the present invention, an optical device includes a fluorescent wheel, a first fluorescent color segment, a second fluorescent color segment, and two light sources. The fluorescent wheel has a twist. The first fluorescent color segment is disposed along the first radial position of the fluorescent wheel and forms a first central angle. The second fluorescent color segment is disposed along the second radial position of the fluorescent wheel and forms a second central angle. The first fluorescent material is coated on the first fluorescent color segment and the second fluorescent color segment. The first central angle is the same as the second central angle. The two light sources respectively form a spot of light and are used to excite the first phosphor color segment and the first phosphor material on the second phosphor color segment. When the fluorescent wheel rotates, the time for exciting the first fluorescent material by the two spots is substantially the same.
於本發明的一或多個實施方式中，上述之兩光點可同時激發第一螢光色段與第二螢光色段上之第一螢光材料。In one or more embodiments of the present invention, the two light spots can simultaneously excite the first phosphor color material and the first phosphor material on the second phosphor color segment.
於本發明的一或多個實施方式中，上述之光學裝置更包含第三螢光色段以及第四螢光色段。第三螢光色段於螢光輪之第一半徑位置沿弳度設置，並形成第三圓心角。第四螢光色段於螢光輪之第二半徑位置沿弳度設置，並形成第四圓心角。第三螢光色段與第四螢光色段上塗佈第二螢光材料。第三圓心角與第四圓心角相同。當螢光輪旋轉時，適使兩光點激發第三螢光色段與第四螢光色段上之第二螢光材料的時間實質上相同。In one or more embodiments of the present invention, the optical device further includes a third fluorescent color segment and a fourth fluorescent color segment. The third fluorescent color segment is disposed along the first radial position of the fluorescent wheel and forms a third central angle. The fourth fluorescent color segment is disposed along the second radial position of the fluorescent wheel and forms a fourth central angle. The second fluorescent material is coated on the third fluorescent color segment and the fourth fluorescent color segment. The third central angle is the same as the fourth central angle. When the fluorescent wheel rotates, it is suitable that the two light spots excite the third fluorescent color segment and the second fluorescent material on the fourth fluorescent color segment to be substantially the same time.
於本發明的一或多個實施方式中，上述之兩光點可同時激發第三螢光色段與第四螢光色段上之第二螢光材料。In one or more embodiments of the present invention, the two light spots can simultaneously excite the second fluorescent material on the third fluorescent color segment and the fourth fluorescent color segment.
於本發明的一或多個實施方式中，上述之第一螢光色段及第四螢光色段係同時設置於螢光輪之第一圓心角所形成之扇形區域中。In one or more embodiments of the present invention, the first fluorescent color segment and the fourth fluorescent color segment are simultaneously disposed in a sector region formed by the first central angle of the fluorescent wheel.
於本發明的一或多個實施方式中，上述之光學裝置更包含兩透光區。兩透光區設置於螢光輪上，且與第一螢光色段及第二螢光色段間隔設置。當螢光輪旋轉時，適使兩光點通過二透光區的時間實質上相同。In one or more embodiments of the present invention, the optical device further includes two light transmitting regions. The two transparent regions are disposed on the fluorescent wheel and are spaced apart from the first fluorescent color segment and the second fluorescent color segment. When the fluorescent wheel rotates, the time for the two light spots to pass through the two light transmitting regions is substantially the same.
於本發明的一或多個實施方式中，上述之兩光點可同時通過兩透光區。In one or more embodiments of the present invention, the two light spots can pass through the two light transmitting regions at the same time.
於本發明的一或多個實施方式中，上述之光學裝置更包含第五螢光色段以及第六螢光色段。第五螢光色段與第六螢光色段設置於螢光輪上，且與第一螢光色段及第二螢光色段間隔設置。第五螢光色段與第六螢光色段上塗佈第三螢光材料。當螢光輪旋轉時，適使二光點激發第五螢光色段與第六螢光色段上之第三螢光材料的時間實質上相同。In one or more embodiments of the present invention, the optical device further includes a fifth fluorescent color segment and a sixth fluorescent color segment. The fifth fluorescent color segment and the sixth fluorescent color segment are disposed on the fluorescent wheel, and are spaced apart from the first fluorescent color segment and the second fluorescent color segment. A third phosphor material is coated on the fifth fluorescent color segment and the sixth fluorescent color segment. When the fluorescent wheel rotates, it is suitable that the two light spots excite the fifth fluorescent color segment and the third fluorescent material on the sixth fluorescent color segment to be substantially the same time.
於本發明的一或多個實施方式中，上述之兩光點可同時激發第五螢光色段與第六螢光色段上之第三螢光材料。In one or more embodiments of the present invention, the two light spots can simultaneously excite the third fluorescent material on the fifth fluorescent color segment and the sixth fluorescent color segment.
綜上所述，本發明的光學裝置透過將兩光源所提供的兩光點在螢光輪上分離的作法，即可降低單一光點的功率(即降低熱累積的情形)，藉以避免螢光輪上所塗佈之螢光材料發生熱衰減效應。並且，在本發明的光學裝置中，螢光輪具有具有位於不同半徑位置之兩螢光區段，因此在螢光輪轉動期間，透過使兩光點分別位於螢光區段中具有相同螢光特性的兩螢光色段上的作法，即可有效地提升此螢光特性所對應之顏色的亮度與色彩飽和度。再者，本發明的光學裝置透過改變螢光色段的圓心角(即改變螢光色段的塗佈範圍)的作法，即可達到改變顏色的比例與色彩飽和度的目的。或者，為了同樣達到上述改變顏色的比例與色彩飽和度的目的，本發明的光學裝置還可透過同步電路與亮度控制電路協同配合，使得光源以具有相異之輸出功率之光線分別照射至具有相異螢光特性之螢光色段。In summary, the optical device of the present invention can reduce the power of a single spot (ie, reduce the heat accumulation) by separating the two spots provided by the two light sources on the fluorescent wheel, thereby avoiding the fluorescent wheel. The coated phosphor material undergoes a thermal decay effect. Moreover, in the optical device of the present invention, the fluorescent wheel has two fluorescent sections having different radial positions, so that during the rotation of the fluorescent wheel, the two light spots are respectively located in the fluorescent section and have the same fluorescent characteristics. The effect of the two fluorescent color segments can effectively improve the brightness and color saturation of the color corresponding to the fluorescent characteristics. Furthermore, the optical device of the present invention achieves the purpose of changing the color ratio and color saturation by changing the central angle of the fluorescent color segment (ie, changing the coating range of the fluorescent color segment). Alternatively, in order to achieve the above-mentioned color change ratio and color saturation as well, the optical device of the present invention can also cooperate with the brightness control circuit through the synchronization circuit, so that the light source is irradiated to each phase with light having different output powers. Fluorescent color segments of different fluorescent properties.
以上所述僅係用以闡述本發明所欲解決的問題、解決問題的技術手段、及其產生的功效等等，本發明之具體細節將在下文的實施方式及相關圖式中詳細介紹。The above description is only for explaining the problems to be solved by the present invention, the technical means for solving the problems, the effects thereof, and the like, and the specific details of the present invention will be described in detail in the following embodiments and related drawings.
以下將以圖式揭露本發明之複數個實施方式，為明確說明起見，許多實務上的細節將在以下敘述中一併說明。然而，應瞭解到，這些實務上的細節不應用以限制本發明。也就是說，在本發明部分實施方式中，這些實務上的細節是非必要的。此外，為簡化圖式起見，一些習知慣用的結構與元件在圖式中將以簡單示意的方式繪示之。The embodiments of the present invention are disclosed in the following drawings, and the details of However, it should be understood that these practical details are not intended to limit the invention. That is, in some embodiments of the invention, these practical details are not necessary. In addition, some of the conventional structures and elements are shown in the drawings in a simplified schematic manner in order to simplify the drawings.
請參照第1A圖以及第1B圖。第1A圖為繪示本發明一實施方式之光學裝置100的示意圖。第1B圖為繪示第1A圖中之光學裝置100的另一示意圖。如第1A圖與第1B圖所示，於本實施方式中，光學裝置100包含螢光輪110、第一光源121、第二光源122、濾光色輪130、合光模組140以及積分器150。螢光輪110具有第一螢光區段111以及第二螢光區段112。第一螢光區段111與第二螢光區段112位於螢光輪110之不同半徑位置且不相重疊。在此所述之半徑位置為與螢光輪110之圓心相距一預定半徑的位置。具體來說，第一螢光區段111位於第二螢光區段112之外，亦即第一半徑位置至螢光輪110之圓心的半徑大於第二半徑位置至螢光輪110之圓心的半徑。螢光輪110具有一弳度(即弧度)。第一螢光區段111具有複數個螢光色段R1、G1、Yo1、Yo2。第二螢光區段112具有複數個螢光色段R2、G2、Yi1、Yi2。第一光源121與第二光源122發射出兩光束而在螢光輪110上分別提供第一光點P1以及第二光點P2。第一光點P1與第二光點P2分別位於第一螢光區段111與第二螢光區段112。透過將第一光源121與第二光源122所提供的第一光點P1與第二光點P2在螢光輪110上分離的作法，即可降低單一光點的功率(即降低熱累積的情形)，藉以避免螢光輪110上所塗佈之螢光材料發生熱衰減效應。Please refer to Figure 1A and Figure 1B. FIG. 1A is a schematic view showing an optical device 100 according to an embodiment of the present invention. FIG. 1B is another schematic view showing the optical device 100 in FIG. 1A. As shown in FIGS. 1A and 1B , in the present embodiment, the optical device 100 includes a fluorescent wheel 110 , a first light source 121 , a second light source 122 , a filter color wheel 130 , a light combining module 140 , and an integrator 150 . . The fluorescent wheel 110 has a first fluorescent section 111 and a second fluorescent section 112. The first fluorescent section 111 and the second fluorescent section 112 are located at different radial positions of the fluorescent wheel 110 and do not overlap. The radius position described herein is a position at a predetermined radius from the center of the fluorescent wheel 110. Specifically, the first fluorescent section 111 is located outside the second fluorescent section 112, that is, the radius from the first radial position to the center of the fluorescent wheel 110 is greater than the radius of the second radial position to the center of the fluorescent wheel 110. The fluorescent wheel 110 has a twist (i.e., a curvature). The first fluorescent section 111 has a plurality of fluorescent color segments R1, G1, Yo1, Yo2. The second fluorescent section 112 has a plurality of fluorescent color segments R2, G2, Yi1, and Yi2. The first light source 121 and the second light source 122 emit two light beams to provide a first light spot P1 and a second light spot P2 on the fluorescent wheel 110, respectively. The first spot P1 and the second spot P2 are located in the first fluorescent section 111 and the second fluorescent section 112, respectively. By separating the first light spot P1 and the second light spot P2 provided by the first light source 121 and the second light source 122 on the fluorescent wheel 110, the power of the single spot can be reduced (ie, the heat accumulation is reduced). In order to avoid the thermal decay effect of the fluorescent material coated on the fluorescent wheel 110.
於本實施方式中，第一光源121與第二光源122為藍光雷射固態光源。螢光輪110為穿透式基板，並具有兩光穿透部113。螢光色段R1、R2上塗佈第一螢光材料，因此具有相同的螢光特性，並可分別被第一光源121與第二光源122所發射的光線激發而產生具有第一特定波長之第一與第二光束，其可在穿透濾光色輪130之對應的色區(例如色區C1)之後成為紅光來源。螢光色段G1、G2上塗佈第二螢光材料，因此具有相同的螢光特性，並可分別被第一光源121與第二光源122所發射的光線激發而產生具有第二特定波長之第三與第四光束，其可在穿透濾光色輪130之對應的色區(例如色區C2)之後成為綠光來源。螢光色段Yo1、Yo2與螢光色段Yi1、Yi2上塗佈第三螢光材料，因此具有相同的螢光特性，並可分別被第一光源121與第二光源122所發射的光線激發而產生具有第三特定波長之第五、第六、第七與第八光束，其可在穿透濾光色輪130之對應的色區(例如色區C3)之後成為黃光來源。在第一光源121與第二光源122的光線穿過光穿透部113並穿透濾光色輪130之對應的色區(例如色區C4)之後，可成為藍光來源。In the embodiment, the first light source 121 and the second light source 122 are blue laser solid-state light sources. The fluorescent wheel 110 is a transmissive substrate and has two light penetrating portions 113. The first color phosphor material is coated on the fluorescent color segments R1 and R2, and thus has the same fluorescent characteristics, and can be excited by the light emitted by the first light source 121 and the second light source 122 to generate the first specific wavelength. The first and second beams, which may become a source of red light after passing through a corresponding color zone (e.g., color zone C1) of the filter color wheel 130. The second color phosphor material is coated on the fluorescent color segments G1 and G2, and thus has the same fluorescent characteristics, and can be excited by the light emitted by the first light source 121 and the second light source 122 to generate a second specific wavelength. The third and fourth beams, which may become a source of green light after passing through a corresponding color zone (e.g., color zone C2) of the filter color wheel 130. The fluorescent color segments Yo1 and Yo2 and the fluorescent color segments Yi1 and Yi2 are coated with the third fluorescent material, and thus have the same fluorescent characteristics, and can be excited by the light emitted by the first light source 121 and the second light source 122, respectively. The fifth, sixth, seventh and eighth beams having a third specific wavelength are produced which may become a source of yellow light after penetrating the corresponding color region of the filter color wheel 130 (e.g., color region C3). After the light of the first light source 121 and the second light source 122 passes through the light penetrating portion 113 and penetrates the corresponding color region (for example, the color region C4) of the filter color wheel 130, it may become a blue light source.
於一些實施方式中，光穿透部113的材質可包含透明玻璃，但本發明並不以此為限。於其它實施方式中，光穿透部113亦可為缺口。In some embodiments, the material of the light penetrating portion 113 may include transparent glass, but the invention is not limited thereto. In other embodiments, the light penetrating portion 113 may also be a notch.
於一些實施方式中，螢光輪110亦可不具有光穿透部113。亦即，螢光輪110上的螢光區段可相連而形成連續一整圈的形式。In some embodiments, the fluorescent wheel 110 may also have no light penetrating portion 113. That is, the fluorescent segments on the fluorescent wheel 110 can be connected to form a continuous full circle.
特別來說，本實施方式的光學裝置100係配置在螢光輪110轉動期間，使第一光點P1與第二光點P2的位置分別位於第一螢光區段111與第二螢光區段112中具有相同螢光特性的螢光色段上。舉例來說，當第一光點P1位於第一螢光區段111的螢光色段R1時，第二光點P2即位於第二螢光區段112的螢光色段R2；當第一螢光區段111的螢光色段G1藉由螢光輪110之旋轉而移動至第一光點P1時，第二螢光區段112的螢光色段G2即藉由螢光輪110之旋轉而位於第二光點P2；當第一螢光區段111的螢光色段Yo1藉由螢光輪110之旋轉而移動至第一光點P1時，第二螢光區段112的螢光色段Yi2即藉由螢光輪110之旋轉而位於第二光點P2；當第一螢光區段111的螢光色段Yo2藉由螢光輪110之旋轉而移動至第一光點P1時，第二螢光區段112的螢光色段Yi1即藉由螢光輪110之旋轉而位於第二光點P2。而當一光穿透部113藉由螢光輪110之旋轉而移動至第一光點P1時，另一光穿透部113亦同時藉由螢光輪110之旋轉而位於第二光點P2。In particular, the optical device 100 of the present embodiment is disposed during the rotation of the fluorescent wheel 110 such that the positions of the first spot P1 and the second spot P2 are respectively located in the first fluorescent segment 111 and the second fluorescent segment. 112 has a fluorescent color section with the same fluorescent characteristics. For example, when the first spot P1 is located in the fluorescent segment R1 of the first fluorescent segment 111, the second spot P2 is located in the fluorescent segment R2 of the second fluorescent segment 112; When the fluorescent color segment G1 of the fluorescent segment 111 is moved to the first light spot P1 by the rotation of the fluorescent wheel 110, the fluorescent color segment G2 of the second fluorescent segment 112 is rotated by the fluorescent wheel 110. Located at the second spot P2; when the fluorescent segment Yo1 of the first fluorescent segment 111 is moved to the first spot P1 by the rotation of the fluorescent wheel 110, the fluorescent segment of the second fluorescent segment 112 Yi2 is located at the second spot P2 by the rotation of the fluorescent wheel 110; when the fluorescent segment Yo2 of the first fluorescent segment 111 is moved to the first spot P1 by the rotation of the fluorescent wheel 110, the second The fluorescent color segment Yi1 of the fluorescent section 112 is located at the second light spot P2 by the rotation of the fluorescent wheel 110. When a light penetrating portion 113 is moved to the first spot P1 by the rotation of the fluorescent wheel 110, the other light penetrating portion 113 is also located at the second spot P2 by the rotation of the fluorescent wheel 110.
同樣示於第1A圖與第1B圖中，第一光源121及第二光源122之位置與濾光色輪130之位置係分別位於螢光輪110的相反兩側，使得由第一螢光區段111與第二螢光區段112穿過之光線接著照射至濾光色輪130。合光模組140位於螢光輪110與濾光色輪130之間。合光模組140配置以接收由第一螢光區段111與第二螢光區段112穿過之光線，並將光線繼續導引至濾光色輪130。積分器150位於合光模組140與濾光色輪130之間。積分器150配置以接收合光模組140所導引之兩道光線並將其均勻地混合成一道光線，接著再將混合之光線繼續導出至濾光色輪130。於實際應用中，合光模組140的光路架構並不以第1A圖所示之實施方式為限。Also shown in FIGS. 1A and 1B, the positions of the first light source 121 and the second light source 122 and the position of the filter color wheel 130 are respectively located on opposite sides of the fluorescent wheel 110 so that the first fluorescent section is The light that the 111 and the second fluorescent section 112 pass through is then irradiated to the filter color wheel 130. The light combining module 140 is located between the fluorescent wheel 110 and the filter color wheel 130. The light combining module 140 is configured to receive the light passing through the first fluorescent section 111 and the second fluorescent section 112 and continue to guide the light to the filter color wheel 130. The integrator 150 is located between the light combining module 140 and the filter color wheel 130. The integrator 150 is configured to receive the two rays of light guided by the light combining module 140 and uniformly mix them into one light, and then continue to export the mixed light to the filter color wheel 130. In practical applications, the optical path architecture of the light module 140 is not limited to the embodiment shown in FIG. 1A.
請參照第2圖，其為繪示本發明一實施方式之光學裝置100的電路示意圖。如第2圖所示，於本實施方式中，光學裝置100還包含第一驅動器180、第二驅動器190以及同步電路160。第一驅動器180配置以驅動螢光輪110轉動。第二驅動器190配置以驅動濾光色輪130轉動。同步電路160電性連接第一驅動器180與第二驅動器190。濾光色輪130具有複數個色區C1、C2、C3、C4。色區C1、C2與C3分別對應至第一螢光區段111之螢光色段R1、G1與Yo1、Yo2，以及分別對應至第二螢光區段112之螢光色段R2、G2與Yi1、Yi2。同步電路160配置以同步控制第一驅動器180與第二驅動器190，致使在螢光輪110與濾光色輪130轉動期間，由螢光區段的螢光色段中之任一者穿過之光線接著照射至濾光色輪130的色區中之對應者。舉例來說，由色區C1所穿透的光線具有特定的紅色光譜，而經由同步電路160的控制，可使得由螢光色段R1、R2穿過的第一與第二光束會恰好抵達色區C1；由色區C2所穿透的光線具有特定的綠色光譜，而經由同步電路160的控制，可使得由螢光色段G1、G2穿過的第三與第四光束會恰好抵達色區C2；由色區C3所穿透的光線具有特定的黃色光譜，而經由同步電路160的控制，可使得由螢光色段Yo1、Yo2、Yi1、Yi2穿過的第五、第六、第七與第八光束會恰好抵達色區C3；由色區C4所穿透的光線具有特定的藍色光譜，而經由同步電路160的控制，可使得由光穿透部113穿過的光線會恰好抵達色區C4。Please refer to FIG. 2, which is a circuit diagram of an optical device 100 according to an embodiment of the present invention. As shown in FIG. 2, in the present embodiment, the optical device 100 further includes a first driver 180, a second driver 190, and a synchronization circuit 160. The first driver 180 is configured to drive the fluorescent wheel 110 to rotate. The second driver 190 is configured to drive the filter color wheel 130 to rotate. The synchronization circuit 160 is electrically connected to the first driver 180 and the second driver 190. The filter color wheel 130 has a plurality of color regions C1, C2, C3, and C4. The color regions C1, C2, and C3 respectively correspond to the fluorescent color segments R1, G1 and Yo1, Yo2 of the first fluorescent segment 111, and the fluorescent color segments R2, G2 corresponding to the second fluorescent segment 112, respectively. Yi1, Yi2. The synchronization circuit 160 is configured to synchronously control the first driver 180 and the second driver 190 such that light that passes through any of the fluorescent segments of the fluorescent segment during rotation of the fluorescent wheel 110 and the filter color wheel 130 Then, the corresponding one of the color regions of the filter color wheel 130 is irradiated. For example, the light transmitted by the color zone C1 has a specific red spectrum, and the control of the synchronization circuit 160 allows the first and second light beams that pass through the fluorescent color segments R1, R2 to just reach the color. The region C1; the light transmitted by the color region C2 has a specific green spectrum, and the control of the synchronization circuit 160 allows the third and fourth beams passing through the fluorescent segments G1, G2 to just reach the color region. C2; the light transmitted by the color zone C3 has a specific yellow spectrum, and the fifth, sixth, and seventh passes through the fluorescent color segments Yo1, Yo2, Yi1, and Yi2 through the control of the synchronization circuit 160. The light beam that passes through the color zone C4 has a specific blue spectrum with the eighth light beam; the light passing through the light penetrating portion 113 can be just arrived by the control of the synchronization circuit 160. Color area C4.
在以上結構與光路配置之下，即可有效地提升每一種螢光特性所對應之顏色的亮度與色彩飽和度。經申請人實驗後發現，相較於習知採用僅具有單一螢光區段之螢光輪110的光學裝置100，本實施方式採用具有雙螢光區段之螢光輪110的光學裝置100可有效增加特定顏色的亮度與色彩飽和度。由具體的實驗數據來看，紅光可以提升整體亮度約1~1.5%，且紅光與白光的色彩比值(color ratio)也可以從原本的6.6%提升到7.3%，而綠光更可以將整體亮度提升約4~5%。Under the above structure and optical path configuration, the brightness and color saturation of the color corresponding to each of the fluorescent characteristics can be effectively improved. After the experiment by the applicant, it is found that the optical device 100 using the fluorescent wheel 110 having the double fluorescent section can effectively increase the optical device 100 using the fluorescent wheel 110 having only a single fluorescent section. The brightness and color saturation of a particular color. From the specific experimental data, red light can increase the overall brightness by about 1~1.5%, and the color ratio of red and white light can also be increased from 6.6% to 7.3%, while green light can be The overall brightness is increased by about 4~5%.
於一些實施方式中，第一光源121與第二光源122所發射的光線具有相同波長。於一些實施方式中，第一光源121與第二光源122所發射的光線分別具有相異波長。In some embodiments, the light emitted by the first light source 121 and the second light source 122 has the same wavelength. In some embodiments, the light emitted by the first light source 121 and the second light source 122 respectively have different wavelengths.
再回到第1A圖，於本實施方式中，第一光點P1與第二光點P2連成的直線通過螢光輪110的圓心O，但本發明並不以此為限。請參照第3圖，其為繪示本發明一實施方式之螢光輪110’的示意圖。如第3圖所示，本實施方式之螢光輪110’相較於第1A圖所示之螢光輪110的差異之處，在於第一光點P1與第二光點P2的連線並未通過本實施方式之螢光輪110’的圓心O。具體來說，於本實施方式中，第二螢光區段112的所有螢光色段與第二光點P2係相對於圓心O順時針偏轉了角度θ。因此，在螢光輪110’轉動期間，第一光點P1與第二光點P2的位置同樣可分別位於第一螢光區段111與第二螢光區段112中具有相同螢光特性的螢光色段上。Returning to FIG. 1A, in the present embodiment, a straight line connecting the first light spot P1 and the second light spot P2 passes through the center O of the fluorescent wheel 110, but the invention is not limited thereto. Please refer to Fig. 3, which is a schematic view showing a fluorescent wheel 110' according to an embodiment of the present invention. As shown in FIG. 3, the difference between the fluorescent wheel 110' of the present embodiment and the fluorescent wheel 110 shown in FIG. 1A is that the connection between the first light spot P1 and the second light spot P2 does not pass. The center O of the fluorescent wheel 110' of the present embodiment. Specifically, in the present embodiment, all of the fluorescent color segments and the second light spot P2 of the second fluorescent segment 112 are angularly offset by an angle θ with respect to the center O. Therefore, during the rotation of the fluorescent wheel 110', the positions of the first light spot P1 and the second light spot P2 may be respectively located in the first fluorescent segment 111 and the second fluorescent segment 112 having the same fluorescent characteristics. On the light color segment.
再回到第1A圖，於本實施方式中，每一螢光區段的螢光色段中具有相異螢光特性的至少兩螢光色段的圓心角相同。舉例來說，第一螢光區段111中的螢光色段R1與螢光色段G1具有相同的圓心角α，而第二螢光區段112中的螢光色段R2與螢光色段G2具有相同的圓心角α。並且，螢光區段中的螢光色段中具有相同螢光特性的至少兩螢光色段的圓心角相同。舉例來說，第一螢光區段111中的螢光色段R1與第二螢光區段112中的螢光色段R2有相同的圓心角α，而第一螢光區段111中的螢光色段G1與第二螢光區段112中的螢光色段G2有相同的圓心角α。以及，濾光色輪130的色區中具有相異顏色的至少兩色區的圓心角相同。舉例來說，色區C1與色區C2具有相同的圓心角β。然而，本發明並不以此為限。Returning to FIG. 1A, in the present embodiment, the central angles of at least two fluorescent color segments having different fluorescent characteristics in the fluorescent color segments of each fluorescent segment are the same. For example, the fluorescent color segment R1 in the first fluorescent segment 111 has the same central angle α as the fluorescent color segment G1, and the fluorescent color segment R2 and the fluorescent color in the second fluorescent segment 112. Segment G2 has the same central angle α. Further, at least two of the fluorescent color segments having the same fluorescent characteristics in the fluorescent color segments in the fluorescent segment have the same central angle. For example, the fluorescent color segment R1 in the first fluorescent segment 111 and the fluorescent color segment R2 in the second fluorescent segment 112 have the same central angle α, and the first fluorescent segment 111 The fluorescent color segment G1 has the same central angle α as the fluorescent color segment G2 in the second fluorescent segment 112. And, the central angles of at least two color regions having different colors in the color region of the filter color wheel 130 are the same. For example, the color zone C1 and the color zone C2 have the same central angle β. However, the invention is not limited thereto.
請參照第4A圖以及第4B圖。第4A圖為繪示本發明另一實施方式之光學裝置200的示意圖。第4B圖為繪示第4A圖中之光學裝置200的另一示意圖。如第4A圖與第4B圖所示，於本實施方式中，光學裝置200同樣包含螢光輪210、第一光源121、第二光源122、濾光色輪230、合光模組140以及積分器150，其中第一光源121、第二光源122、合光模組140與積分器150皆與第1A圖所示之實施方式相同，因此可參照前述相關說明，在此不再贅述。要說明的是，本實施方式相較於第1A圖所示之實施方式的相異之處，在於本實施方式之光學裝置200係針對螢光輪210上的螢光區段的螢光色段進行調整，而濾光色輪230上的色區也對應地調整。Please refer to FIG. 4A and FIG. 4B. FIG. 4A is a schematic view showing an optical device 200 according to another embodiment of the present invention. FIG. 4B is another schematic view showing the optical device 200 in FIG. 4A. As shown in FIG. 4A and FIG. 4B , in the present embodiment, the optical device 200 also includes a fluorescent wheel 210 , a first light source 121 , a second light source 122 , a filter color wheel 230 , a light combining module 140 , and an integrator . For example, the first light source 121, the second light source 122, the light combining module 140, and the integrator 150 are the same as the embodiment shown in FIG. 1A. Therefore, reference may be made to the related description, and details are not described herein. It should be noted that the difference between the embodiment and the embodiment shown in FIG. 1A is that the optical device 200 of the present embodiment performs the fluorescent color segment of the fluorescent segment on the fluorescent wheel 210. The adjustment, and the color area on the filter color wheel 230 is also adjusted correspondingly.
具體來說，於本實施方式中，每一螢光區段的螢光色段中具有相異螢光特性的至少兩螢光色段的圓心角相異。舉例來說，在第一螢光區段111中，螢光色段R1所具有的圓心角α1相異於螢光色段G1所具有的圓心角α2。在第二螢光區段112中，螢光色段R2所具有的圓心角α1相異於螢光色段G2所具有的圓心角α2。並且，螢光區段中的螢光色段中具有相同螢光特性的至少兩螢光色段的圓心角相同。舉例來說，第一螢光區段111中的螢光色段R1與第二螢光區段112中的螢光色段R2有相同的圓心角α1，而第一螢光區段111中的螢光色段G1與第二螢光區段112中的螢光色段G2有相同的圓心角α2。以及，濾光色輪230的色區中具有相異顏色的至少兩色區的圓心角相異。舉例來說，色區C1所具有的圓心角β1相異於色區C2所具有的圓心角β2。Specifically, in the embodiment, the central angles of at least two fluorescent color segments having different fluorescent characteristics in the fluorescent color segments of each of the fluorescent segments are different. For example, in the first fluorescent section 111, the central angle α1 of the fluorescent color segment R1 is different from the central angle α2 of the fluorescent color segment G1. In the second fluorescent section 112, the central angle α1 of the fluorescent color section R2 is different from the central angle α2 of the fluorescent color section G2. Further, at least two of the fluorescent color segments having the same fluorescent characteristics in the fluorescent color segments in the fluorescent segment have the same central angle. For example, the fluorescent color segment R1 in the first fluorescent segment 111 and the fluorescent color segment R2 in the second fluorescent segment 112 have the same central angle α1, and the first fluorescent segment 111 The fluorescent color segment G1 has the same central angle α2 as the fluorescent color segment G2 in the second fluorescent segment 112. And, the central angles of at least two color regions having different colors in the color region of the filter color wheel 230 are different. For example, the central angle β1 of the color region C1 is different from the central angle β2 of the color region C2.
藉由以上所述透過改變螢光色段的圓心角(即改變螢光色段的塗佈範圍)的作法，即可有效地達到改變顏色的比例與色彩飽和度的目的。舉例來說，如第4A圖所示，由於螢光色段R1、R2所具有的圓心角α1大於螢光色段G1、G2所具有的圓心角α2，且色區C1所具有的圓心角β1對應地大於色區C2所具有的圓心角β2，因此可以增加紅光的比例與色彩飽和度。By changing the central angle of the fluorescent color segment (i.e., changing the coating range of the fluorescent color segment) as described above, the purpose of changing the color ratio and color saturation can be effectively achieved. For example, as shown in FIG. 4A, since the fluorescent color segments R1 and R2 have a central angle α1 larger than the central angle α2 of the fluorescent segments G1 and G2, and the central portion of the color region C1 has a central angle β1. Correspondingly, it is larger than the central angle β2 of the color region C2, so that the ratio of red light and color saturation can be increased.
或者，為了同樣達到上述改變顏色的比例與色彩飽和度的目的，於一實施方式中，光學裝置100還可包含協同控制器165以及亮度控制電路170。亮度控制電路170配置以控制第一光源121與第二光源122所發射之光線的輸出功率。透過第2圖所示之協同控制器165使同步電路160與亮度控制電路170協同配合，可使得第一光源121與第二光源122以具有相異之輸出功率之光線分別照射至具有相異螢光特性之螢光色段。舉例來說，當第一螢光區段111的螢光色段R1與第二螢光區段112的螢光色段R2藉由螢光輪110之旋轉而分別移動至第一光點P1與第二光點P2的位置時，可利用協同控制器165使同步電路160與亮度控制電路170協同配合，進而使第一光源121與第二光源122發射具有第一輸出功率之光線；當第一螢光區段111的螢光色段G1與第二螢光區段112的螢光色段G2藉由螢光輪110之旋轉而分別移動至第一光點P1與第二光點P2的位置時，可利用協同控制器165使同步電路160與亮度控制電路170協同配合，進而使第一光源121與第二光源122發射具有第二輸出功率之光線。若第一輸出功率大於第二輸出功率，則可增加紅光的比例與色彩飽和度。相對地，若第二輸出功率大於第一輸出功率，則可增加綠光的比例與色彩飽和度。Alternatively, in order to achieve the above-described purpose of changing the color ratio and color saturation, in an embodiment, the optical device 100 may further include a cooperative controller 165 and a brightness control circuit 170. The brightness control circuit 170 is configured to control the output power of the light emitted by the first light source 121 and the second light source 122. The synchronization circuit 160 and the brightness control circuit 170 cooperate with each other through the cooperation controller 165 shown in FIG. 2, so that the first light source 121 and the second light source 122 are respectively irradiated with light having different output powers to have different fires. Fluorescent color segment of light characteristics. For example, when the fluorescent color segment R1 of the first fluorescent segment 111 and the fluorescent color segment R2 of the second fluorescent segment 112 are respectively moved to the first light spot P1 and the first by the rotation of the fluorescent wheel 110 When the position of the two light spots P2 is used, the synchronization controller 160 can cooperate with the brightness control circuit 170 by using the synchronization controller 165, so that the first light source 121 and the second light source 122 emit light having the first output power; When the fluorescent color segment G1 of the light segment 111 and the fluorescent color segment G2 of the second fluorescent segment 112 are respectively moved to the positions of the first light spot P1 and the second light spot P2 by the rotation of the fluorescent wheel 110, The synchronization controller 165 can be utilized to cooperate with the brightness control circuit 170 to cause the first source 121 and the second source 122 to emit light having a second output power. If the first output power is greater than the second output power, the ratio of red light and color saturation can be increased. In contrast, if the second output power is greater than the first output power, the ratio of green light and color saturation can be increased.
換句話說，由前述實施方式可知，光學裝置100、200包含螢光輪、第一螢光色段(例如螢光色段R1)、第二螢光色段(例如螢光色段R2)以及兩光源(即第一光源121、第二光源122)。螢光輪具有弳度Rad (如第1A圖與第4A圖所示)。第一螢光色段於螢光輪之第一半徑位置沿弳度Rad設置，並形成第一圓心角(如第1A圖中之圓心角α與第4A圖中之圓心角α1所示)。第二螢光色段於螢光輪之第二半徑位置沿弳度Rad設置，並形成第二圓心角(如第1A圖中之圓心角α與第4A圖中之圓心角α1所示)。第一螢光色段與第二螢光色段上塗佈第一螢光材料。第一圓心角與第二圓心角相同。第一半徑位置至螢光輪110之圓心的半徑不等於第二半徑位置至螢光輪110之圓心的半徑。兩光源分別形成光點(即第一光點P1與第二光點P2)並用以激發第一螢光色段與第二螢光色段上之第一螢光材料。當螢光輪旋轉時，適使兩光點激發第一螢光材料的時間實質上相同。於一些實施方式中，兩光點可同時激發第一螢光色段與第二螢光色段上之第一螢光材料。In other words, as can be seen from the foregoing embodiments, the optical device 100, 200 includes a fluorescent wheel, a first fluorescent color segment (such as a fluorescent color segment R1), a second fluorescent color segment (such as a fluorescent color segment R2), and two Light source (ie, first light source 121, second light source 122). The fluorescent wheel has a twist Rad (as shown in Figures 1A and 4A). The first fluorescent color segment is disposed along the radial Rad at the first radial position of the fluorescent wheel and forms a first central angle (as indicated by the central angle α in FIG. 1A and the central angle α1 in FIG. 4A). The second fluorescent color segment is disposed along the second Radius position at the second radial position of the fluorescent wheel and forms a second central angle (as indicated by the central angle α in FIG. 1A and the central angle α1 in FIG. 4A). The first fluorescent material is coated on the first fluorescent color segment and the second fluorescent color segment. The first central angle is the same as the second central angle. The radius from the first radius position to the center of the fluorescent wheel 110 is not equal to the radius of the second radius position to the center of the fluorescent wheel 110. The two light sources respectively form light spots (ie, the first light spot P1 and the second light spot P2) and are used to excite the first fluorescent color material and the first fluorescent material on the second fluorescent color segment. When the fluorescent wheel rotates, the time for exciting the first fluorescent material by the two spots is substantially the same. In some embodiments, the two spots of light can simultaneously excite the first phosphor color segment and the first phosphor material on the second phosphor color segment.
光學裝置100、200更包含第三螢光色段(例如螢光色段G1)以及第四螢光色段(例如螢光色段G2)。第三螢光色段於螢光輪之第一半徑位置沿弳度Rad設置，並形成第三圓心角(如第1A圖中之圓心角α與第4A圖中之圓心角α2所示)。第四螢光色段於螢光輪之第二半徑位置沿弳度Rad設置，並形成第四圓心角(如第1A圖中之圓心角α與第4A圖中之圓心角α2所示)。第三螢光色段與第四螢光色段上塗佈第二螢光材料。第三圓心角與第四圓心角相同。第一半徑位置至螢光輪110之圓心的半徑不等於第二半徑位置至螢光輪110之圓心的半徑。當螢光輪旋轉時，適使兩光點激發第三螢光色段與第四螢光色段上之第二螢光材料的時間實質上相同。於一些實施方式中，兩光點可同時激發第三螢光色段與第四螢光色段上之第二螢光材料。於一些實施方式中，第一螢光色段及第四螢光色段係同時設置於螢光輪之第一圓心角所形成之扇形區域中。The optical device 100, 200 further includes a third fluorescent color segment (eg, a fluorescent color segment G1) and a fourth fluorescent color segment (eg, a fluorescent color segment G2). The third fluorescent color segment is disposed along the twist Rad at the first radial position of the fluorescent wheel, and forms a third central angle (as indicated by the central angle α in FIG. 1A and the central angle α2 in FIG. 4A). The fourth fluorescent color segment is disposed along the twist Rad at the second radial position of the fluorescent wheel, and forms a fourth central angle (as indicated by the central angle α in FIG. 1A and the central angle α2 in FIG. 4A). The second fluorescent material is coated on the third fluorescent color segment and the fourth fluorescent color segment. The third central angle is the same as the fourth central angle. The radius from the first radius position to the center of the fluorescent wheel 110 is not equal to the radius of the second radius position to the center of the fluorescent wheel 110. When the fluorescent wheel rotates, it is suitable that the two light spots excite the third fluorescent color segment and the second fluorescent material on the fourth fluorescent color segment to be substantially the same time. In some embodiments, the two spots of light can simultaneously excite the second phosphor material on the third and fourth phosphor segments. In some embodiments, the first fluorescent color segment and the fourth fluorescent color segment are simultaneously disposed in a sector region formed by the first central angle of the fluorescent wheel.
光學裝置100、200更包含兩透光區(即光穿透部113)。兩透光部設置於螢光輪上，且與第一螢光色段及第二螢光色段間隔設置。當螢光輪旋轉時，適使兩光點通過二透光區的時間實質上相同。於一些實施方式中，兩光點可同時通過兩透光區。The optical device 100, 200 further includes two light transmissive regions (ie, light penetrating portions 113). The two transparent portions are disposed on the fluorescent wheel and are spaced apart from the first fluorescent color segment and the second fluorescent color segment. When the fluorescent wheel rotates, the time for the two light spots to pass through the two light transmitting regions is substantially the same. In some embodiments, the two spots of light can pass through the two light transmitting regions simultaneously.
光學裝置100、200更包第五螢光色段(例如螢光色段Yo2)以及第六螢光色段(例如螢光色段Yi1)。第五螢光色段以及第六螢光色段設置於螢光輪上，且與第一螢光色段及第二螢光色段間隔設置。第五螢光色段與第六螢光色段上塗佈第三螢光材料。當螢光輪旋轉時，適使二光點激發第五螢光色段與第六螢光色段上之第三螢光材料的時間實質上相同。於一些實施方式中，兩光點可同時激發第五螢光色段與第六螢光色段上之第三螢光材料。The optical device 100, 200 further includes a fifth fluorescent color segment (for example, a fluorescent color segment Yo2) and a sixth fluorescent color segment (for example, a fluorescent color segment Yi1). The fifth fluorescent color segment and the sixth fluorescent color segment are disposed on the fluorescent wheel and are spaced apart from the first fluorescent color segment and the second fluorescent color segment. A third phosphor material is coated on the fifth fluorescent color segment and the sixth fluorescent color segment. When the fluorescent wheel rotates, it is suitable that the two light spots excite the fifth fluorescent color segment and the third fluorescent material on the sixth fluorescent color segment to be substantially the same time. In some embodiments, the two spots of light can simultaneously excite the third phosphor material on the fifth and sixth phosphor segments.
請參照第5圖，其為繪示本發明另一實施方式之光學裝置的示意圖。如第5圖所示，於本實施方式中，光學裝置300包含螢光輪310、第一光源121、第二光源122、濾光色輪130、合光模組340以及積分器150，其中第一光源121、第二光源122、濾光色輪130與積分器150皆與第1A圖所示之實施方式相同，因此可參照前述相關說明，在此不再贅述。要說明的是，本實施方式相較於第1A圖所示之實施方式的相異之處，在於本實施方式之光學裝置300係針對螢光輪310與合光模組340進行修改。Please refer to FIG. 5, which is a schematic diagram of an optical device according to another embodiment of the present invention. As shown in FIG. 5 , in the embodiment, the optical device 300 includes a fluorescent wheel 310 , a first light source 121 , a second light source 122 , a filter color wheel 130 , a light combining module 340 , and an integrator 150 . The light source 121, the second light source 122, the filter color wheel 130, and the integrator 150 are the same as those in the embodiment shown in FIG. 1A. Therefore, reference may be made to the related description, and details are not described herein again. It should be noted that the difference between the embodiment and the embodiment shown in FIG. 1A is that the optical device 300 of the present embodiment is modified for the fluorescent wheel 310 and the light combining module 340.
具體來說，於本實施方式中，螢光輪310為半穿透半反射式基板，其具有如第1A圖中之螢光輪110上所示之第一螢光區段111、第二螢光區段112以及光穿透部113的相同配置，差別在於第1A圖中之螢光輪110上的第一螢光區段111與第二螢光區段112為穿透式的，而本實施方式之螢光輪310上的第一螢光區段111與第二螢光區段112為反射式的。合光模組340包含雙色鏡341與反射鏡342、343、344。雙色鏡341配置以讓第一光源121與第二光源122所發射的光線通過，並反射其他波長的光線，因此第一光源121與第二光源122所發射的光線可直接通過雙色鏡341而抵達螢光輪310。Specifically, in the embodiment, the fluorescent wheel 310 is a transflective substrate having a first fluorescent segment 111 and a second fluorescent region as shown on the fluorescent wheel 110 in FIG. 1A. The same configuration of the segment 112 and the light penetrating portion 113 is different in that the first fluorescent segment 111 and the second fluorescent segment 112 on the fluorescent wheel 110 in FIG. 1A are transmissive, and the embodiment is The first fluorescent section 111 and the second fluorescent section 112 on the fluorescent wheel 310 are reflective. The light combining module 340 includes a dichroic mirror 341 and mirrors 342, 343, and 344. The dichroic mirror 341 is configured to pass the light emitted by the first light source 121 and the second light source 122 and reflect light of other wavelengths, so that the light emitted by the first light source 121 and the second light source 122 can be directly passed through the dichroic mirror 341. Fluorescent wheel 310.
基於如第5圖所示之光路配置，螢光輪310上的螢光色段R1、R2可分別被第一光源121與第二光源122所發射的光線激發而產生具有第一特定波長之第一與第二光束，第一與第二光束隨即分別被螢光色段R1、R2反射至雙色鏡341，接著再被雙色鏡341反射而進入積分器150，最後穿透濾光色輪130之對應的色區(例如色區C1)而成為紅光來源。螢光輪310上的螢光色段G1、G2可分別被第一光源121與第二光源122所發射的光線激發而產生具有第二特定波長之第三與第四光束，第三與第四光束隨即分別被螢光色段G1、G2反射至雙色鏡341，接著再被雙色鏡341反射而進入積分器150，最後穿透濾光色輪130之對應的色區(例如色區C2)而成為綠光來源。螢光輪310上的螢光色段Yo1、Yo2與螢光色段Yi1、Yi2可分別被第一光源121與第二光源122所發射的光線激發而產生具有第三特定波長之第五、第六、第七與第八光束，第五、第六、第七與第八光束隨即分別被螢光色段Yo1、Yo2與螢光色段Yi1、Yi2反射至雙色鏡341，接著再被雙色鏡341反射而進入積分器150，最後穿透濾光色輪130之對應的色區(例如色區C3)而成為黃光來源。在第一光源121與第二光源122的光線穿過光穿透部113之後，會依序被反射鏡342、343、344反射而進入積分器150，最後穿透濾光色輪130之對應的色區(例如色區C4)而成為藍光來源。Based on the optical path configuration as shown in FIG. 5, the fluorescent color segments R1, R2 on the fluorescent wheel 310 can be excited by the light emitted by the first light source 121 and the second light source 122, respectively, to generate a first wavelength having a first specific wavelength. And the second light beam, the first and second light beams are respectively reflected by the fluorescent color segments R1, R2 to the dichroic mirror 341, then reflected by the dichroic mirror 341 to enter the integrator 150, and finally penetrate the corresponding color filter 130 The color zone (for example, color zone C1) becomes a source of red light. The fluorescent color segments G1, G2 on the fluorescent wheel 310 can be respectively excited by the light emitted by the first light source 121 and the second light source 122 to generate third and fourth light beams having the second specific wavelength, the third and fourth light beams. Then, they are respectively reflected by the fluorescent color segments G1 and G2 to the dichroic mirror 341, then reflected by the dichroic mirror 341 to enter the integrator 150, and finally penetrate the corresponding color region of the filter color wheel 130 (for example, the color region C2). Green light source. The fluorescent color segments Yo1 and Yo2 and the fluorescent color segments Yi1 and Yi2 on the fluorescent wheel 310 can be respectively excited by the light emitted by the first light source 121 and the second light source 122 to generate the fifth and sixth having the third specific wavelength. The seventh and eighth light beams, the fifth, sixth, seventh and eighth light beams are respectively reflected by the fluorescent color segments Yo1, Yo2 and the fluorescent color segments Yi1, Yi2 to the dichroic mirror 341, and then by the dichroic mirror 341 Reflecting into the integrator 150, and finally penetrating the corresponding color zone of the filter color wheel 130 (e.g., color zone C3) to become a source of yellow light. After the light of the first light source 121 and the second light source 122 passes through the light transmitting portion 113, it is sequentially reflected by the mirrors 342, 343, 344 to enter the integrator 150, and finally penetrates the corresponding color of the filter color wheel 130. The color region (e.g., color region C4) becomes a source of blue light.
由以上對於本發明之具體實施方式之詳述，可以明顯地看出，本發明的光學裝置透過將兩光源所提供的兩光點在螢光輪上分離的作法，即可降低單一光點的功率(即降低熱累積的情形)，藉以避免螢光輪上所塗佈之螢光材料發生熱衰減效應。並且，在本發明的光學裝置中，螢光輪具有位於不同半徑位置之兩螢光區段，因此在螢光輪轉動期間，透過使兩光點分別位於螢光區段中具有相同螢光特性的兩螢光色段上的作法，即可有效地提升此螢光特性所對應之顏色的亮度與色彩飽和度。再者，本發明的光學裝置透過改變螢光色段的圓心角(即改變螢光色段的塗佈範圍)的作法，即可達到改變顏色的比例與色彩飽和度的目的。或者，為了同樣達到上述改變顏色的比例與色彩飽和度的目的，本發明的光學裝置還可透過同步電路與亮度控制電路協同配合，使得光源以具有相異之輸出功率之光線分別照射至具有相異螢光特性之螢光色段。From the above detailed description of the specific embodiments of the present invention, it can be clearly seen that the optical device of the present invention can reduce the power of a single spot by separating the two spots provided by the two light sources on the fluorescent wheel. (ie, reduce the heat accumulation) to avoid the thermal decay effect of the fluorescent material coated on the fluorescent wheel. Moreover, in the optical device of the present invention, the fluorescent wheel has two fluorescent sections located at different radial positions, so that during the rotation of the fluorescent wheel, two light spots are respectively located in the fluorescent section and have the same fluorescent characteristics. The method on the fluorescent color segment can effectively enhance the brightness and color saturation of the color corresponding to the fluorescent characteristic. Furthermore, the optical device of the present invention achieves the purpose of changing the color ratio and color saturation by changing the central angle of the fluorescent color segment (ie, changing the coating range of the fluorescent color segment). Alternatively, in order to achieve the above-mentioned color change ratio and color saturation as well, the optical device of the present invention can also cooperate with the brightness control circuit through the synchronization circuit, so that the light source is irradiated to each phase with light having different output powers. Fluorescent color segments of different fluorescent properties.
雖然本發明已以實施方式揭露如上，然其並不用以限定本發明，任何熟習此技藝者，在不脫離本發明的精神和範圍內，當可作各種的更動與潤飾，因此本發明的保護範圍當視後附的申請專利範圍所界定者為準。The present invention has been disclosed in the above embodiments, and is not intended to limit the scope of the present invention, and the invention may be modified and modified in various ways without departing from the spirit and scope of the invention. The scope is subject to the definition of the scope of the patent application.
100、200、300‧‧‧光學裝置
110、110’、210、310‧‧‧螢光輪
111‧‧‧第一螢光區段
112‧‧‧第二螢光區段
113‧‧‧光穿透部
121‧‧‧第一光源
122‧‧‧第二光源
130、230‧‧‧濾光色輪
140、340‧‧‧合光模組
150‧‧‧積分器
160‧‧‧同步電路
165‧‧‧協同控制器
170‧‧‧亮度控制電路
180‧‧‧第一驅動器
190‧‧‧第二驅動器
341‧‧‧雙色鏡
342、343、344‧‧‧反射鏡
α、α1、α2、β、β1、β2‧‧‧圓心角
θ‧‧‧角度
R1、R2、G1、G2、Yo1、Yo2、Yi1、Yi2‧‧‧螢光色段
C1、C2、C3、C4‧‧‧色區
O‧‧‧圓心
P1‧‧‧第一光點
P2‧‧‧第二光點
Rad‧‧‧弳度100, 200, 300‧‧‧ optical devices
110, 110', 210, 310‧‧‧ fluorescent wheel
111‧‧‧First fluorescent section
112‧‧‧Second fluorescent section
113‧‧‧Light penetration
121‧‧‧First light source
122‧‧‧second light source
130, 230‧‧‧ Filter color wheel
140, 340‧‧ ‧ combined light module
150‧‧‧ integrator
160‧‧‧Synchronous circuit
165‧‧‧Collaborative controller
170‧‧‧Brightness control circuit
180‧‧‧First drive
190‧‧‧second drive
341‧‧‧Dual color mirror
342, 343, 344‧‧ ‧ mirrors α, α1, α2, β, β1, β2‧‧‧ center angle θ‧‧‧ angle
R1, R2, G1, G2, Yo1, Yo2, Yi1, Yi2‧‧‧ fluorescent color segments
C1, C2, C3, C4‧‧‧ color zones
O‧‧‧ Center
P1‧‧‧ first light spot
P2‧‧‧second light spot
Rad‧‧‧弪
為讓本發明之上述和其他目的、特徵、優點與實施例能更明顯易懂，所附圖式之說明如下： 第1A圖為繪示本發明一實施方式之光學裝置的示意圖。 第1B圖為繪示第1A圖中之光學裝置的另一示意圖。 第2圖為繪示本發明一實施方式之光學裝置的電路示意圖。 第3圖為繪示本發明一實施方式之螢光輪的示意圖。 第4A圖為繪示本發明另一實施方式之光學裝置的示意圖。 第4B圖為繪示第4A圖中之光學裝置的另一示意圖。 第5圖為繪示本發明另一實施方式之光學裝置的示意圖。The above and other objects, features, advantages and embodiments of the present invention will become more apparent and understood. FIG. 1B is another schematic view showing the optical device of FIG. 1A. FIG. 2 is a circuit diagram showing an optical device according to an embodiment of the present invention. Fig. 3 is a schematic view showing a fluorescent wheel according to an embodiment of the present invention. 4A is a schematic view showing an optical device according to another embodiment of the present invention. Fig. 4B is another schematic view showing the optical device of Fig. 4A. Fig. 5 is a schematic view showing an optical device according to another embodiment of the present invention.
100‧‧‧光學裝置 100‧‧‧Optical device
110‧‧‧螢光輪 110‧‧‧ fluorescent wheel
111‧‧‧第一螢光區段 111‧‧‧First fluorescent section
112‧‧‧第二螢光區段 112‧‧‧Second fluorescent section
113‧‧‧光穿透部 113‧‧‧Light penetration
121‧‧‧第一光源 121‧‧‧First light source
122‧‧‧第二光源 122‧‧‧second light source
130‧‧‧濾光色輪 130‧‧‧Filter color wheel
140‧‧‧合光模組 140‧‧‧Huangguang Module
150‧‧‧積分器 150‧‧‧ integrator
α、β‧‧‧圓心角 、, β‧‧‧ center angle
R1、R2、G1、G2、Yo1、Yo2、Yi1、Yi2‧‧‧螢光色段 R1, R2, G1, G2, Yo1, Yo2, Yi1, Yi2‧‧‧ fluorescent color segments
C1、C2、C3、C4‧‧‧色區 C1, C2, C3, C4‧‧‧ color zones
O‧‧‧圓心 O‧‧‧ Center
P1‧‧‧第一光點 P1‧‧‧ first light spot
P2‧‧‧第二光點 P2‧‧‧second light spot
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| TWI661234B (en) * | 2018-08-03 | 2019-06-01 | 台達電子工業股份有限公司 | Phase calibration method and laser projector |
| TWI685709B (en) * | 2018-12-12 | 2020-02-21 | 佳世達科技股份有限公司 | Optical module |
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| US7055967B2 (en) * | 2002-05-17 | 2006-06-06 | Bierhuizen Serge J A | Illumination systems employing corrective optics for use in reduced étendue color video projection systems |
| TWI440957B (en) * | 2012-03-09 | 2014-06-11 | Delta Electronics Inc | Illumination system for projection device |
| CN104765239A (en) * | 2014-01-03 | 2015-07-08 | 深圳市亿思达科技集团有限公司 | Light source system |
| CN104516177B (en) * | 2014-12-18 | 2016-08-17 | 苏州佳世达光电有限公司 | Colour wheel and projection arrangement |
| CN105353581A (en) * | 2015-12-16 | 2016-02-24 | 海信集团有限公司 | Color wheel and laser light source |
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| TWI661234B (en) * | 2018-08-03 | 2019-06-01 | 台達電子工業股份有限公司 | Phase calibration method and laser projector |
| TWI685709B (en) * | 2018-12-12 | 2020-02-21 | 佳世達科技股份有限公司 | Optical module |
| US10684541B1 (en) | 2018-12-12 | 2020-06-16 | Qisda Corporation | Optical module |
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