TWI581047B - A Projection System - Google Patents
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- TWI581047B TWI581047B TW104141833A TW104141833A TWI581047B TW I581047 B TWI581047 B TW I581047B TW 104141833 A TW104141833 A TW 104141833A TW 104141833 A TW104141833 A TW 104141833A TW I581047 B TWI581047 B TW I581047B
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Description
本發明係關於光學技術領域，尤其涉及一種投影系統。 The present invention relates to the field of optical technologies, and in particular, to a projection system.
目前，基於DMD(Digital Micromirror Device，數位微鏡器件)的DLP(Digital Light Procession，數位光處理)投影技術已經得到越來越廣泛的應用。其中，應用最普遍的DLP投影系統為單片式DMD投影系統和三片式DMD投影系統。 At present, DLP (Digital Light Procession) based DMD (Digital Micromirror Device) has been widely used. Among them, the most commonly used DLP projection system is a monolithic DMD projection system and a three-piece DMD projection system.
請參閱圖1與圖2；其中，該圖1係習知的單片DMD投影系統的結構示意圖，該圖2係為習知的投影系統中旋轉色輪的區域結構圖。如圖1所示，單片式DMD投影系統係包括：一光源100’、一收集透鏡101’、一旋轉色輪102’、一方棒103’、一光中繼系統104’、一DMD晶片105’、一TIR棱鏡106’、以及一投影鏡頭107’，其中，該光源100’為半導體雷射器或發光二極體，該光源100’發射的激發光經過收集透鏡101’後，聚焦到該旋轉色輪102’上，如圖2所示，由於該旋轉色輪102’具有紅R、綠G、藍B三種螢光粉，且不同螢光粉位於該旋轉色輪102’的不同區域，因此，激發光入射到旋轉色輪102’的不同區域後，能夠產生具有時序的紅R、綠G、藍B三基色光，三基 色光依次經過方棒103’以及光中繼系統104’後入射到TIR棱鏡106’上，被TIR棱鏡106’反射到DMD晶片105’上進行調製後，形成的圖像從投影鏡頭107’輸出。 Please refer to FIG. 1 and FIG. 2 . FIG. 1 is a schematic structural view of a conventional single-chip DMD projection system. FIG. 2 is a structural diagram of a region of a rotating color wheel in a conventional projection system. As shown in FIG. 1, the monolithic DMD projection system includes: a light source 100', a collection lens 101', a rotating color wheel 102', a rod 103', an optical relay system 104', and a DMD wafer 105. ', a TIR prism 106', and a projection lens 107', wherein the light source 100' is a semiconductor laser or a light-emitting diode, and the excitation light emitted by the light source 100' passes through the collecting lens 101', and is focused to On the rotating color wheel 102', as shown in FIG. 2, since the rotating color wheel 102' has three kinds of phosphors of red R, green G, and blue B, and different phosphors are located in different areas of the rotating color wheel 102', Therefore, after the excitation light is incident on different regions of the rotating color wheel 102', three primary colors of red R, green G, and blue B having a time series can be generated, and the three bases are generated. The color light is sequentially incident on the TIR prism 106' after passing through the square bar 103' and the optical relay system 104', and is reflected by the TIR prism 106' onto the DMD wafer 105', and the resulting image is output from the projection lens 107'.
上述單片式DMD投影系統中，紅R、綠G、藍B三基色光是按時序依次入射到DMD晶片105’上進行調製，然後通過人眼的積分效應將調製後的單色圖像合成彩色圖像。而三片式DMD投影系統中，則是每個DMD調製一種基色光，如第一個DMD調製紅光R、第二個DMD調製綠光G、第三個DMD調製藍光B，然後將這三個DMD調製後的單色圖像空間疊加合成彩色圖像。也就是說，現有的DLP投影系統，無論是單片式DMD投影系統，還是三片式DMD投影系統，採用的都是三基色原理來合成彩色圖像。 In the above monolithic DMD projection system, the three primary colors of red R, green G, and blue B are sequentially incident on the DMD wafer 105' for modulation, and then the modulated monochrome image is synthesized by the integral effect of the human eye. Color image. In the three-chip DMD projection system, each DMD modulates a primary color light, such as a first DMD modulated red light R, a second DMD modulated green light G, and a third DMD modulated blue light B, and then these three The monochromatic image after DMD modulation is spatially superimposed to synthesize a color image. That is to say, the existing DLP projection system, whether it is a monolithic DMD projection system or a three-chip DMD projection system, uses a three-primary color principle to synthesize a color image.
然而，於實際使用狀態下，上述習知的彩色圖像的色域基本滿足了REC.709的標準其應用於現有的DLP投影系統中卻往往產生下列問題： However, in the actual use state, the color gamut of the above-mentioned conventional color image basically satisfies the standard of REC.709. However, it is often applied to the existing DLP projection system to cause the following problems:
(1)請參閱圖3，係為習知的投影系統形成的彩色圖像的色域圖。如圖3所示，彩色圖像LP的色域覆蓋REC.709色域的大部分，但是，該色域並未完全覆蓋REC.709的色域，即現有的DLP投影系統仍有部分未達到REC.709的標準，與DCI標準相比，則相差更多。 (1) Please refer to FIG. 3, which is a color gamut of a color image formed by a conventional projection system. As shown in FIG. 3, the color gamut of the color image LP covers most of the REC.709 color gamut, but the color gamut does not completely cover the color gamut of REC.709, that is, the existing DLP projection system still has some not reached. The standard of REC.709 is much worse than the DCI standard.
因此，經由上述的說明，可以得知現有的DLP投影系統仍具有缺點與不足；有鑑於此，本案之發明人係極力加以研究發明，而終於研發完成本發明之投影系統。 Therefore, through the above description, it can be known that the existing DLP projection system still has disadvantages and shortcomings; in view of this, the inventors of the present invention have vigorously studied the invention and finally developed the projection system of the present invention.
本發明之目的在於提供一種投影系統，以解決現有技術中DLP投影系統合成的彩色圖像的色域較小，不能滿足REC.709標準和DCI標準的問題。 It is an object of the present invention to provide a projection system for solving the problem that the color image synthesized by the DLP projection system in the prior art has a small color gamut and cannot satisfy the REC.709 standard and the DCI standard.
因此，為了達成本發明上述之目的，本案之發明人提出投影系統，係包括：一光源系統，係具有：在第一時序產生的一第一光束；其中，該第一光束係包括一第一光與一第一補償光；在第二時序產生的一第二光束；其中，該第二光束係包括一第二光，或者該第二光束係包括一第二光與一第一補償光；一分光裝置，用以依序將該第一光束與該第二光束分成一沿第一光路傳輸的光與一沿第二光路傳輸的光；一第一光調製裝置，用以調製該沿第一光路傳輸的光；以及一第二光調製裝置，用以調製該沿第二光路傳輸的光。 Therefore, in order to achieve the above object of the present invention, the inventor of the present invention proposes a projection system comprising: a light source system having: a first light beam generated at a first timing; wherein the first light beam system comprises a first a light and a first compensation light; a second light beam generated at a second timing; wherein the second light beam system comprises a second light, or the second light beam system comprises a second light and a first compensation light a light splitting device for sequentially dividing the first light beam and the second light beam into a light transmitted along the first optical path and a light transmitted along the second optical path; a first light modulating device for modulating the edge Light transmitted by the first optical path; and a second light modulating device for modulating the light transmitted along the second optical path.
λ 1‧‧‧第一光 λ 1‧‧‧First light
λ 2‧‧‧第一補償光 λ 2‧‧‧First compensation light
λ 3‧‧‧第二光束 λ 3‧‧‧second beam
λ 4‧‧‧第一光束 λ 4‧‧‧First beam
λ 5‧‧‧第二補償光 λ 5‧‧‧second compensation light
λ 7‧‧‧第一補償光 λ 7‧‧‧First compensation light
λ 30‧‧‧第三光 λ 30‧‧‧ Third light
λ 31‧‧‧第四光 λ 31‧‧‧fourth light
42‧‧‧第一光調製裝置 42‧‧‧First light modulation device
43‧‧‧第二光調製裝置 43‧‧‧Second light modulation device
44‧‧‧投影鏡頭 44‧‧‧Projection lens
400‧‧‧第三光源 400‧‧‧ Third light source
401‧‧‧第一光源 401‧‧‧first light source
402‧‧‧第二光源 402‧‧‧second light source
403‧‧‧光中繼系統 403‧‧‧Optical Relay System
404‧‧‧旋轉色輪 404‧‧‧Rotating color wheel
405‧‧‧方棒 405‧‧‧ square bar
406‧‧‧光中繼系統 406‧‧‧Optical Relay System
407‧‧‧TIR棱鏡 407‧‧‧TIR prism
410‧‧‧第一棱鏡 410‧‧‧First prism
411‧‧‧第二棱鏡 411‧‧‧Second prism
412‧‧‧分光膜 412‧‧‧Splitting film
1300‧‧‧第一旋轉色輪 1300‧‧‧First rotating color wheel
1301‧‧‧第二旋轉色輪 1301‧‧‧Second Rotating Color Wheel
4041‧‧‧螢光色段 4041‧‧‧Fluorescent color
4042‧‧‧透明色段 4042‧‧‧Transparent color segments
40410‧‧‧紅光螢光粉色段 40410‧‧‧Red fluorescent pink section
40411‧‧‧綠光螢光粉色段 40411‧‧‧Green fluorescent pink section
Y‧‧‧黃光 Y‧‧‧Huang Guang
B‧‧‧藍光 B‧‧‧Blue
C‧‧‧青光 C‧‧‧Guangguang
R‧‧‧紅光 R‧‧‧Red Light
G‧‧‧綠光 G‧‧‧Green Light
R1‧‧‧紅光 R1‧‧‧Red Light
R1’‧‧‧紅鐳射 R1’‧‧‧Red Laser
C1‧‧‧第一部分青光 C1‧‧‧The first part of the glare
C2‧‧‧第二部分青光 C2‧‧‧The second part of the glare
G1‧‧‧第一部分綠光 G1‧‧‧Part 1 Green Light
G2‧‧‧第二部分綠光 G2‧‧‧Part II Green Light
100’‧‧‧光源 100’‧‧‧Light source
101’‧‧‧收集透鏡 101’‧‧‧Collection lens
102’‧‧‧旋轉色輪 102’‧‧‧Rotating color wheel
103’‧‧‧方棒 103’‧‧‧ square stick
104’‧‧‧光中繼系統 104’‧‧‧Optical Relay System
105’‧‧‧DMD晶片 105’‧‧‧DMD Wafer
106’‧‧‧TIR棱鏡 106’‧‧‧TIR prism
107’‧‧‧投影鏡頭 107'‧‧‧Projection lens
圖1係為習知的單片DMD投影系統的結構示意圖；圖2係為習知的投影系統中旋轉色輪的區域結構圖；圖3係為習知的投影系統形成的彩色圖像的色域圖；圖4係為本發明實施例一提供的一種投影系統的結構示意圖； 圖5係為本發明實施例一提供的旋轉色輪的區域結構圖；圖6係為本發明實施例一提供的分光裝置的結構示意圖；圖7係為本發明實施例一中第一光調製裝置和第二光調製裝置的一種調製時序圖；圖8係為本發明實施例一提供的一種投影系統的色域圖；圖9係為本發明實施例一提供的旋轉色輪的另一種區域結構圖；圖10係為本發明實施例一提供的另一種投影系統的結構示意圖；圖11係為本發明實施例一中第一光調製裝置和第二光調製裝置的另一種調製時序圖；圖12係為本發明實施例一提供的另一種投影系統的色域圖；圖13係為本發明實施例二提供的投影系統結構示意圖；圖14係為本發明實施例二中第一光調製裝置和第二光調製裝置的一種調製時序圖；圖15係為本發明實施例二中第一光調製裝置和第二光調製裝置的另一種調製時序圖；圖16係為本發明實施例三提供的投影系統結構示意圖；圖17係為本發明實施例三中第一光調製裝置和第二光調製裝置的一種調製時序圖；圖18係為本發明實施例三中第一光調製裝置和第二光調製裝置的另一種調製時序圖；以及圖19係為本發明實施例三中第一光調製裝置和第二光調製裝置的又一種調製時序圖。 1 is a schematic structural view of a conventional single-chip DMD projection system; FIG. 2 is a regional structural diagram of a rotating color wheel in a conventional projection system; and FIG. 3 is a color image formed by a conventional projection system. FIG. 4 is a schematic structural diagram of a projection system according to Embodiment 1 of the present invention; 5 is a schematic structural view of a rotating color wheel according to Embodiment 1 of the present invention; FIG. 6 is a schematic structural view of a light splitting device according to Embodiment 1 of the present invention; FIG. 7 is a first light modulation according to Embodiment 1 of the present invention; A modulation timing diagram of the device and the second light modulating device; FIG. 8 is a color gamut diagram of a projection system according to Embodiment 1 of the present invention; and FIG. 9 is another region of the rotating color wheel according to Embodiment 1 of the present invention. FIG. 10 is a schematic structural diagram of another projection system according to Embodiment 1 of the present invention; FIG. 11 is another modulation timing diagram of the first light modulation device and the second light modulation device according to Embodiment 1 of the present invention; 12 is a color gamut diagram of another projection system according to the first embodiment of the present invention; FIG. 13 is a schematic structural diagram of a projection system according to Embodiment 2 of the present invention; FIG. 14 is a first light modulation according to Embodiment 2 of the present invention; A modulation timing chart of the device and the second light modulating device; FIG. 15 is another modulation timing chart of the first light modulating device and the second light modulating device according to the second embodiment of the present invention; FIG. 16 is a third embodiment of the present invention. mention FIG. 17 is a timing chart of a first light modulating device and a second light modulating device according to Embodiment 3 of the present invention; FIG. 18 is a first light modulating device according to Embodiment 3 of the present invention; Another modulation timing chart of the second light modulating device; and FIG. 19 is still another modulation timing chart of the first light modulating device and the second light modulating device in the third embodiment of the present invention.
為了能夠更清楚地描述本發明所提出之投影系統，以下將配合圖式，詳盡說明本發明之較佳實施例。 In order to more clearly describe the projection system of the present invention, a preferred embodiment of the present invention will be described in detail below with reference to the drawings.
請參閱圖4，係本發明實施例一提供的一種投影系統的結構示意圖。如圖所示，本發明之投影系統，主要包括：一光源系統、一分光裝置、一第一光調製裝置、以及一第二光調製裝置。其中，該光源系統在第一時序產生第一光束，在第二時序產生第二光束，且該分光裝置依序將第一光束和第二光束分成沿第一光路傳輸的光和沿第二光路傳輸的光，並且，該第一光調製裝置調製沿第一光路傳輸的光，該第二光調製裝置調製沿第二光路傳輸的光。於此，需特別說明的是，該第一光調製裝置與該第二光調製裝置包括但不限於DMD(Digital Micro mirror Device，數位微鏡器件)、LCOS(Liquid Crystal On Silicon，矽基液晶顯示器)和LCD(Liquid Crystal Display，液晶顯示器)。為了描述方便，本實施例以及後續實施例中的光調製裝置主要以DMD的調製方式進行描述。 FIG. 4 is a schematic structural diagram of a projection system according to Embodiment 1 of the present invention. As shown in the figure, the projection system of the present invention mainly comprises: a light source system, a light splitting device, a first light modulating device, and a second light modulating device. Wherein the light source system generates a first light beam at a first timing and a second light beam at a second timing, and the light splitting device sequentially divides the first light beam and the second light beam into light transmitted along the first optical path and along the second Light transmitted by the optical path, and the first light modulation device modulates light transmitted along the first optical path, and the second light modulation device modulates light transmitted along the second optical path. In this case, the first light modulating device and the second light modulating device include, but are not limited to, a DMD (Digital Micro Mirror Device), and a LCOS (Liquid Crystal On Silicon). ) and LCD (Liquid Crystal Display). For convenience of description, the light modulating device in this embodiment and subsequent embodiments is mainly described in the modulation mode of the DMD.
承上述，該第一光為基色光，且該第二光為包括至少兩種基色光的寬譜光，第一光與第二光的合光包含三基色光。進一步地，第一補償光的波譜範圍介於第一光的波譜範圍與第二光的波譜範圍之間，且第一補償光的波譜範圍與第二光的波譜範圍存在部分重疊。例如，第一光為藍光，第二光為包括紅光和綠光的黃光，第一補償光為青光，該青光的波譜範圍介於藍光和黃光的波譜範圍之間，且 該青光的波譜範圍與黃光的波譜範圍存在部分重疊，這樣該青光既能夠補償藍光的色域，又能補償黃光分成的綠光的色域。 According to the above, the first light is primary light, and the second light is broad spectrum light including at least two primary colors, and the combined light of the first light and the second light includes three primary colors. Further, the spectral range of the first compensation light is between the spectral range of the first light and the spectral range of the second light, and the spectral range of the first compensation light partially overlaps with the spectral range of the second light. For example, the first light is blue light, the second light is yellow light including red light and green light, and the first compensation light is blue light, and the spectrum of the blue light is between the spectral ranges of blue light and yellow light, and The spectral range of the cyan light partially overlaps with the spectral range of the yellow light, so that the cyan can compensate for the color gamut of the blue light and compensate the color gamut of the green light divided by the yellow light.
如圖所示，光源系統包括發射第一光λ 1的第一光源401、發射第一補償光λ 2的第二光源402、光中繼系統403和旋轉色輪404。其中，第一光源401為發射藍光的鐳射光源，其發射的藍光的波長優選為445nm，第二光源402為發射青光的鐳射光源，其發射的青光為窄光譜的光，波長優選為510nm，當然，在其他實施例中，第一光源401和第二光源402還可以為發光二極體，或者第二光源402還可以為發射490nm~530nm波段的青綠光的光源，也可以為發射綠光的光源，本發明並不僅限於此，只要其能夠擴大合成的彩色圖像的色域即可。 As shown, the light source system includes a first light source 401 that emits a first light λ 1 , a second light source 402 that emits a first compensation light λ 2 , an optical relay system 403, and a rotating color wheel 404. The first light source 401 is a laser light source that emits blue light, and the wavelength of the blue light emitted by the light source is preferably 445 nm. The second light source 402 is a laser light source that emits cyan light, and the emitted light is a narrow spectrum light, and the wavelength is preferably 510 nm. In other embodiments, the first light source 401 and the second light source 402 may also be light emitting diodes, or the second light source 402 may also be a light source that emits cyan light in the 490 nm to 530 nm band, or may emit green. The light source of the light is not limited to this invention as long as it can enlarge the color gamut of the synthesized color image.
請繼續參閱圖5，係為本發明實施例一提供的旋轉色輪的區域結構圖。如圖所示，旋轉色輪404包括：一螢光色段4041以及一透明色段4042，其中，螢光色段4041具有黃光螢光粉，透明色段4042具有散射粉，該散射粉用於將藍光和青光消偏振後出射。並且，旋轉色輪404具有驅動裝置，如馬達等，用於驅動旋轉色輪404旋轉，使螢光色段4041和透明色段4042依序旋轉至第一光λ 1的光路上，或依序旋轉至第一補償光λ 2的光路上，其中，透明色段4042能夠同時位於第一光λ 1和第一補償光λ 2的光路上，以形成包含第一光λ 1和第一補償光λ 2的第一光束λ 4。 Please refer to FIG. 5 , which is a structural diagram of a region of a rotating color wheel according to Embodiment 1 of the present invention. As shown, the rotating color wheel 404 includes: a fluorescent color section 4041 and a transparent color section 4042, wherein the fluorescent color section 4041 has a yellow fluorescent powder, and the transparent color section 4042 has a scattering powder, and the scattering powder is used for The blue light and the blue light are depolarized and then emitted. Moreover, the rotating color wheel 404 has a driving device, such as a motor or the like, for driving the rotating color wheel 404 to rotate, so that the fluorescent color segment 4041 and the transparent color segment 4042 are sequentially rotated to the optical path of the first light λ 1 , or sequentially Rotating to the optical path of the first compensation light λ 2 , wherein the transparent color segment 4042 can be simultaneously located on the optical paths of the first light λ 1 and the first compensation light λ 2 to form the first light λ 1 and the first compensation light The first beam λ 4 of λ 2 .
承上述，在第一時序，透明色段4042旋轉至第一光λ 1和第一補償光λ 2的光路上，第一光λ 1和第一補償光λ 2即藍光和青 光同時透過透明色段4042後形成第一光束λ 4；在第二時序，螢光色段4041旋轉至第一光λ 1的光路上，螢光色段4041吸收第一光λ 1並產生第二光即第二光束λ 3，即吸收藍光產生黃光Y。之後，第一光束λ 4或第二光束λ 3經過方棒405、光中繼系統406和TIR棱鏡407進入分光裝置，本實施例中，分光裝置包括第一棱鏡410、第二棱鏡411和位於第一棱鏡410和第二棱鏡411交界面的分光膜412，該分光膜412為半透半反膜片，優選為綠光帶通特性。 According to the above, at the first timing, the transparent color segment 4042 is rotated to the optical path of the first light λ 1 and the first compensation light λ 2 , and the first light λ 1 and the first compensation light λ 2 are blue light and blue. The light passes through the transparent color segment 4042 to form the first light beam λ 4; at the second timing, the fluorescent color segment 4041 rotates to the optical path of the first light λ 1 , and the fluorescent color segment 4041 absorbs the first light λ 1 and generates the first The second light, that is, the second light beam λ 3 , absorbs blue light to produce yellow light Y. Thereafter, the first beam λ 4 or the second beam λ 3 enters the spectroscopic device through the square bar 405, the optical relay system 406, and the TIR prism 407. In this embodiment, the spectroscopic device includes a first prism 410, a second prism 411, and The light splitting film 412 at the interface between the first prism 410 and the second prism 411 is a transflective film, preferably having a green band pass characteristic.
請繼續參閱圖6，為本發明實施例一提供的分光裝置的結構示意圖。如圖所示，該分光裝置在第一時序將第一光束λ 4分成沿第一光路傳輸的第一光λ 1和沿第二光路傳輸的第一補償光λ 2，即分成藍光B和青光C，並且，藍光B沿第一光路傳輸至第一光調製裝置42，青光C沿第二光路傳輸至一第二光調製裝置43；分光裝置在第二時序將第二光束λ 3分成沿第一光路傳輸的第三光λ 30和沿第二光路傳輸的第四光λ 31，即將黃光Y分成紅光R和綠光G，並且，紅光R沿第一光路傳輸至一第一光調製裝置42，綠光G沿第二光路傳輸至該第二光調製裝置43。 Please refer to FIG. 6 , which is a schematic structural diagram of a spectroscopic device according to Embodiment 1 of the present invention. As shown, the spectroscopic device splits the first light beam λ 4 into a first light λ 1 transmitted along the first optical path and a first compensation light λ 2 transmitted along the second optical path at a first timing, that is, into a blue light B and Cyan C, and blue light B is transmitted along the first optical path to the first light modulating device 42, and the cyan light C is transmitted along the second optical path to a second light modulating device 43; the splitting device sets the second light beam λ 3 at the second timing Divided into a third light λ 30 transmitted along the first optical path and a fourth optical λ 31 transmitted along the second optical path, that is, the yellow light Y is divided into red light R and green light G, and the red light R is transmitted to the first optical path to the first light path. The first light modulating device 42 transmits green light G along the second optical path to the second light modulating device 43.
請同時參閱圖6與圖7，其中，圖7係為本發明實施例一中第一光調製裝置和第二光調製裝置的一種調製時序圖。如圖所示，第一光調製裝置42依序調製所述第一光λ 1和第三光λ 30，即藍光B和紅光R，第二光調製裝置43依序調製第一補償光λ 2和第四光λ 31，即青光C和綠光G，調製後的紅光R、綠光G、藍光B和青光C透過一投影鏡頭44進行投影。 Please refer to FIG. 6 and FIG. 7 simultaneously. FIG. 7 is a timing chart of modulation of the first light modulating device and the second light modulating device in the first embodiment of the present invention. As shown, the first light modulating device 42 sequentially modulates the first light λ 1 and the third light λ 30, that is, the blue light B and the red light R, and the second light modulating device 43 sequentially modulates the first compensation light λ. 2 and the fourth light λ 31, that is, the cyan C and the green G, and the modulated red light R, green light G, blue light B, and cyan light C are projected through a projection lens 44.
承上述，該第一光源401一直處於開啟狀態，而該第二光源402僅在透明色段4042旋轉至第一補償光λ 2的光路上時處於開啟狀態。特別地，於本實施例一中的光源系統包括一第一控制裝置，用於控制第二光源402在第一時序開啟，在第二時序關閉，即控制第二光源402在螢光色段4041旋轉至第一補償光λ 2的光路上時關閉，在透明色段4042旋轉至第一補償光λ 2的光路上時開啟。 In the above, the first light source 401 is always in an on state, and the second light source 402 is in an on state only when the transparent color segment 4042 is rotated to the optical path of the first compensation light λ 2 . In particular, the light source system in the first embodiment includes a first control device for controlling the second light source 402 to be turned on at the first timing, and being turned off at the second timing, that is, controlling the second light source 402 to be in the fluorescent color segment. 4041 is turned off when rotated to the optical path of the first compensation light λ 2 , and turned on when the transparent color section 4042 is rotated to the optical path of the first compensation light λ 2 .
特別地，請參閱圖8，係為本發明實施例一提供的一種投影系統的色域圖。如圖所示，與現有的採用三基色原理合成彩色圖像的方式相比，本實施例提供的投影系統形成的彩色圖像LP的色域更加寬廣，並能夠覆蓋REC.709標準和DCI標準。 In particular, please refer to FIG. 8 , which is a color gamut diagram of a projection system according to Embodiment 1 of the present invention. As shown in the figure, the color image LP formed by the projection system provided by the present embodiment has a wider color gamut than the existing method of synthesizing a color image using the principle of three primary colors, and can cover the REC.709 standard and the DCI standard. .
請參閱圖9，係為本發明實施例一提供的旋轉色輪的另一種區域結構圖。如圖所示，螢光色段4041包括一紅光螢光粉色段40410與一綠光螢光粉色段40411。此時，第二光為第三光和第四光的混合光，即紅光R和綠光G的混合光，並且，紅光R和綠光G可以具有時序，也可以同時產生。因此，當紅光R和綠光G具有時序時，紅光螢光粉色段40410和綠光螢光粉色段40411依次吸收同一個第一光源發射的第一光。紅光螢光粉色段40410在第一時序的第一時段位於第一光源的光路上，吸收第一光並產生紅光R；綠光螢光粉色段40411在第一時序的第二時段位於第一光源的光路上，吸收第一光並產生綠光G。或者，綠光螢光粉色段40411在第一時序的第一時段產生綠光G，紅光螢光粉色段40410在第一時序的第二時段產生紅光R。而後續的分光裝置也會按照時序將紅光R傳輸至第一光調製裝置，將綠光 G傳輸至第二光調製裝置，第一光調製裝置和第二光調製裝置也會按照時序調製紅光R和綠光G。另外，當紅光R和綠光G同時產生時，紅光螢光粉色段40410和綠光螢光粉色段40411同時吸收不同的第一光源發射的第一光。當紅光螢光粉色段40410位於對應的第一光源的光路上，綠光螢光粉色段40411也位於對應的第一光源的光路上時，紅光螢光粉色段40410和綠光螢光粉色段40411就可以同時吸收第一光，同時產生第一時序的紅光R和綠光G。而後續的分光裝置也會同時將紅光R和綠光G分別傳輸至第一光調製裝置和第二光調製裝置，第一光調製裝置和第二光調製裝置也會在同一時段調製紅光R和綠光G，此種投影系統的光效較高。 Please refer to FIG. 9 , which is another structural diagram of a rotating color wheel according to Embodiment 1 of the present invention. As shown, the fluorescent color section 4041 includes a red fluorescent pink section 40410 and a green fluorescent pink section 40411. At this time, the second light is a mixed light of the third light and the fourth light, that is, a mixed light of the red light R and the green light G, and the red light R and the green light G may have a timing or may be simultaneously generated. Therefore, when the red light R and the green light G have timing, the red fluorescent pink section 40410 and the green fluorescent pink section 40411 sequentially absorb the first light emitted by the same first light source. The red fluorescent pink section 40410 is located on the optical path of the first light source during the first time period of the first timing, absorbs the first light and generates red light R; the green fluorescent pink section 40411 is in the second time period of the first timing Located on the optical path of the first light source, the first light is absorbed and green light G is generated. Alternatively, the green fluorescent pink section 40411 generates green light G during a first time period of the first timing, and the red fluorescent pink color 40410 generates red light R during a second time period of the first timing. The subsequent spectroscopic device also transmits the red light R to the first light modulating device according to the timing, and the green light is G is transmitted to the second light modulation device, and the first light modulation device and the second light modulation device also modulate the red light R and the green light G in time series. In addition, when the red light R and the green light G are simultaneously generated, the red fluorescent pink section 40410 and the green fluorescent pink section 40411 simultaneously absorb the first light emitted by the different first light sources. When the red fluorescent pink section 40410 is located on the optical path of the corresponding first light source, and the green fluorescent pink section 40411 is also located on the optical path of the corresponding first light source, the red fluorescent pink section 40410 and the green fluorescent pink section 40411 can simultaneously absorb the first light while generating the first time of the red light R and the green light G. The subsequent spectroscopic device also transmits the red light R and the green light G to the first light modulating device and the second light modulating device, respectively, and the first light modulating device and the second light modulating device also modulate the red light at the same time. R and green G, the projection system has higher light efficiency.
此外，請繼續參閱圖10，係為本發明實施例一提供的另一種投影系統的結構示意圖。如圖所示，該光源系統還包括一第三光源400，其中，該第三光源400用於發射一第二補償光λ 5，且發射的第二補償光λ 5入射到螢光色段4041上，優選的，第三光源400為發射紅光的雷射器，所述紅鐳射即第二補償光的波長範圍為625nm~645nm。由於螢光色段4041為具有黃光螢光粉或具有紅光螢光粉和綠光螢光粉的區域，因此，螢光色段4041可以透射第二補償光λ 5，並且，螢光色段4041上的螢光粉能夠將偏振態的紅光轉換為非偏振態的紅光R1。於此，必須特別說明的是，該第二補償光λ 5與第三光λ 30為同色異譜的光，即紅光R1與紅光R為同色異譜的光，以通過紅光R1對紅光R進行補償。基於此，第二補償光λ 5與第三光λ 30同時沿第一光路傳輸，且第一光調製裝置42同時調製第二補償光λ 5 與第三光λ 30。第三光源400可以一直處於開啟狀態，也可以為了節約能源，僅在螢光色段4041旋轉至第一光的光路上時處於開啟狀態。上述光源系統還包括第三控制裝置，用於控制第三光源400在第一時序關閉，在第二時序開啟，即控制第三光源400在螢光色段4041旋轉至第一光λ 1的光路上時開啟，在透明色段4042旋轉至第一光λ 1的光路上時關閉。優選的，第三控制裝置還用於控制第二補償光λ 5與第三光λ 30同時產生。 In addition, please refer to FIG. 10 , which is a schematic structural diagram of another projection system according to Embodiment 1 of the present invention. As shown, the light source system further includes a third light source 400, wherein the third light source 400 is configured to emit a second compensation light λ 5 , and the emitted second compensation light λ 5 is incident on the fluorescent color segment 4041. Preferably, the third light source 400 is a red light emitting laser, and the red laser light, that is, the second compensation light has a wavelength ranging from 625 nm to 645 nm. Since the fluorescent color segment 4041 is a region having yellow fluorescent powder or having red fluorescent powder and green fluorescent powder, the fluorescent color segment 4041 can transmit the second compensation light λ 5 , and the fluorescent color segment 4041 The fluorescent powder on the surface is capable of converting the red light of the polarization state into the red light R1 of the non-polarization state. Here, it must be particularly noted that the second compensation light λ 5 and the third light λ 30 are meta-spectral light, that is, the red light R1 and the red light R are meta-spectra light, to pass the red light R1 pair. Red light R is compensated. Based on this, the second compensation light λ 5 and the third light λ 30 are simultaneously transmitted along the first optical path, and the first light modulating device 42 simultaneously modulates the second compensation light λ 5 With the third light λ 30. The third light source 400 may be in an on state at all times, or may be in an on state only when the fluorescent color segment 4041 is rotated to the optical path of the first light in order to save energy. The light source system further includes third control means for controlling the third light source 400 to be turned off at the first timing and turned on at the second timing, that is, controlling the third light source 400 to rotate to the first light λ 1 in the fluorescent color section 4041. The light path is turned on, and is turned off when the transparent color segment 4042 is rotated to the optical path of the first light λ 1 . Preferably, the third control device is further configured to control the second compensation light λ 5 and the third light λ 30 to be generated simultaneously.
請同時參閱圖11，係為本發明實施例一中第一光調製裝置和第二光調製裝置的另一種調製時序圖。如圖所示，在第一時序，分光裝置將第一光束λ 4分成第一光λ 1和第一補償光λ 2，並將第一光λ 1即藍光B傳輸至第一光調製裝置42，將第一補償光λ 2即青光C傳輸至第二光調製裝置43；在第二時序，第二補償光λ 5和第二光束λ 3同時到達分光裝置，分光膜412將第二光束λ 3分成紅光R和綠光G，第二補償光λ 5即紅光R1與紅光R疊加後進入第一光調製裝置42，綠光G進入該第二光調製裝置43。 Please refer to FIG. 11 as another timing sequence diagram of the first light modulating device and the second light modulating device in the first embodiment of the present invention. As shown, at the first timing, the spectroscopic device splits the first light beam λ 4 into the first light λ 1 and the first compensation light λ 2 , and transmits the first light λ 1 , that is, the blue light B, to the first light modulating device. 42. The first compensation light λ 2 , that is, the cyan C is transmitted to the second light modulating device 43; at the second timing, the second compensation light λ 5 and the second light beam λ 3 simultaneously reach the beam splitting device, and the beam splitting film 412 is second. The light beam λ 3 is divided into a red light R and a green light G, and the second compensation light λ 5 , that is, the red light R1 and the red light R are superimposed and then enter the first light modulating device 42 , and the green light G enters the second light modulating device 43 .
請同時參閱圖12，係為本發明實施例一提供的另一種投影系統的色域圖。如圖所示，由於形成彩色圖像的紅光不僅包括旋轉色輪產生的紅光R，還包括第三光源400產生的紅鐳射R1’，因此，本實施例提供的投影系統能夠擴大紅光基色的色座標，提高紅光的比例，其擴大後的四邊形色域形成的彩色圖像LP的色域更廣，更能滿足REC.709和DCI的色域標準。其透過光源系統在第一時序產生第一光束，在第二時序產生第二光束，第一光束包括第一光和第一補償光， 第二光束包括第二光；通過分光裝置依序將第一光束和第二光束分成沿第一光路傳輸的光和沿第二光路傳輸的光，從而可以採用第一補償光青光對第一光藍光進行補償，以擴大藍光的波譜範圍，使得合成的彩色圖像的色域更寬廣，更能夠滿足REC.709和DCI的色域標準；並且，本實施例提供的投影系統，採用兩個光調製裝置分別調製沿第一光路傳輸的光和沿第二光路傳輸的光，與採用單個光調製裝置的系統相比，光效和亮度更高，與採用三個光調製裝置的系統相比，結構更簡單，成本更低。 Please refer to FIG. 12, which is a color gamut diagram of another projection system according to Embodiment 1 of the present invention. As shown in the figure, since the red light forming the color image includes not only the red light R generated by the rotating color wheel but also the red laser light R1' generated by the third light source 400, the projection system provided by the embodiment can expand the red light. The color coordinates of the base color increase the proportion of red light, and the color image LP formed by the enlarged quadrangular color gamut has a wider color gamut, and is more suitable for the color gamut standards of REC.709 and DCI. The first light beam is generated by the light source system at a first timing, and the second light beam is generated at a second timing, the first light beam comprising the first light and the first compensation light, The second light beam includes a second light; the first light beam and the second light beam are sequentially divided by the light splitting device into light transmitted along the first optical path and light transmitted along the second optical path, so that the first compensation light blue light pair can be adopted. The blue light is compensated to expand the spectral range of the blue light, so that the color gamut of the synthesized color image is wider, and the color gamut standard of REC.709 and DCI is more satisfied; and the projection system provided by the embodiment adopts two The light modulating device modulates the light transmitted along the first optical path and the light transmitted along the second optical path, respectively, and has higher light efficiency and brightness than a system employing a single light modulating device, compared to a system employing three light modulating devices. The structure is simpler and the cost is lower.
請參閱第13圖，係本發明實施例二提供的投影系統結構示意圖。如圖所示，與實施例一不同的是該光源系統包括：位於第一光λ 1的光路上的一第一旋轉色輪1300與位於第一補償光λ 2的光路上的一第二旋轉色輪1301，其中，該第一旋轉色輪1300至少包括：一個螢光色段與一個透明色段，螢光色段和透明色段依序旋轉至第一光λ 1的光路上，其中，螢光色段和透明色段的分佈情況與圖5中螢光色段4041和透明色段4042的分佈情況相同。 FIG. 13 is a schematic structural diagram of a projection system according to Embodiment 2 of the present invention. As shown in the figure, the light source system comprises: a first rotating color wheel 1300 on the optical path of the first light λ 1 and a second rotation on the optical path of the first compensation light λ 2 The color wheel 1301, wherein the first rotating color wheel 1300 comprises at least: a fluorescent color segment and a transparent color segment, wherein the fluorescent color segment and the transparent color segment are sequentially rotated to the optical path of the first light λ 1 , wherein The distribution of the fluorescent color segment and the transparent color segment is the same as that of the fluorescent color segment 4041 and the transparent color segment 4042 in FIG.
承上述，第一旋轉色輪1300上的螢光色段吸收第一光λ 1並產生第二光，即吸收藍鐳射產生黃光Y，透明色段透射第一光λ 1即藍光，該透明色段具有散射粉，用於將偏振態的藍光轉換為非偏振態的藍光B；並且，該第二旋轉色輪1301位於第一補償光λ 2的光路上，用於透射第一補償光λ 2即青光C。特別地，於實施例二中的第二旋轉色輪1301為散射輪，該散射輪上的散射粉能夠將偏振態的青光轉 換為非偏振態的青光C，其中，第一光束λ 4為藍光B和青光C的混合光束。 In the above, the fluorescent color segment on the first rotating color wheel 1300 absorbs the first light λ 1 and generates the second light, that is, the absorption blue laser generates yellow light Y, and the transparent color segment transmits the first light λ 1 , that is, blue light, the transparent The color segment has a scattering powder for converting the blue light of the polarization state into the blue light B of the non-polarization state; and the second rotating color wheel 1301 is located on the optical path of the first compensation light λ 2 for transmitting the first compensation light λ 2 is the cyan C. In particular, the second rotating color wheel 1301 in the second embodiment is a scattering wheel, and the scattering powder on the scattering wheel is capable of rotating the polarization state of the blue light. It is replaced by a non-polarized cyan C, wherein the first beam λ 4 is a mixed beam of blue light B and cyan C.
請繼續參閱圖14，係為本發明實施例二中第一光調製裝置和第二光調製裝置的一種調製時序圖。如圖所示，第二控制裝置控制第二光源402在整個時序內處於開啟狀態，即控制第二光源402在螢光色段旋轉至第一光λ 1的光路上和透明色段旋轉至第一補償光λ 2的光路上時均處於開啟狀態，以使第二光束λ 3包括第二光和第一補償光，即黃光Y和青光C。這種情況下，第二光調製裝置43同時調製黃光Y分成的綠光G和青光C。 Please refer to FIG. 14 , which is a modulation timing diagram of the first light modulating device and the second light modulating device in Embodiment 2 of the present invention. As shown, the second control device controls the second light source 402 to be in an open state throughout the time sequence, that is, to control the second light source 402 to rotate on the optical path of the fluorescent color segment to the first light λ 1 and the transparent color segment to the first A light path of the compensation light λ 2 is in an on state, so that the second light beam λ 3 includes the second light and the first compensation light, that is, yellow light Y and blue light C. In this case, the second light modulating means 43 simultaneously modulates the green light G and the cyan light C which the yellow light Y is divided.
請同時參閱圖6與圖7；其中，圖7係為本發明實施例一中第一光調製裝置和第二光調製裝置的一種調製時序圖。如圖所示，在為了節約能源，第二光源402可以僅在透明色段旋轉至第一光λ 1的光路上時處於開啟狀態，此時，第二控制裝置控制第二光源402在第一時序開啟，在第二時序關閉，即在螢光色段旋轉至第一光的光路上時關閉，在透明色段旋轉至第一光的光路上時開啟，以使第二光束包括第二光，但不包括第一補償光。並且，第二控制裝置還用於控制青光C和藍光B同時產生，以便第一光調製裝置42調製的藍光B和第二光調製裝置43調製的青光C處於同一時序。 Please refer to FIG. 6 and FIG. 7 simultaneously. FIG. 7 is a timing chart of modulation of the first light modulating device and the second light modulating device in the first embodiment of the present invention. As shown, in order to save energy, the second light source 402 can be in an on state only when the transparent color segment is rotated to the optical path of the first light λ 1 , at which time the second control device controls the second light source 402 at the first The timing is turned on, and is turned off at the second timing, that is, when the fluorescent color segment is rotated to the optical path of the first light, and turned on when the transparent color segment is rotated to the optical path of the first light, so that the second light beam includes the second Light, but does not include the first compensation light. Moreover, the second control means is further configured to control the simultaneous generation of the cyan C and the blue B such that the blue light B modulated by the first light modulation device 42 and the cyan light C modulated by the second light modulation device 43 are at the same timing.
特別地，於本發明中，該光源系統還包括發射第二補償光的一第三光源，其中，該第三光源為發射紅光的雷射器，該第三光源發射的第二補償光可以入射到第一旋轉色輪1300的螢光色段，也可以入射到第二旋轉色輪1301上，該螢光色段或第二旋轉色輪1301用 於透射該第二補償光即紅光R1，並將偏振態的紅光轉換為非偏振態的紅光R1。此外，第一光調製裝置42還用於同時調製紅光R和紅光R1，以通過紅光R1擴大紅光R的色座標，提高紅光的比例，擴大合成的彩色圖像的色域。進一步地，該第三光源可以一直處於開啟狀態，也可以為了節約能源，僅在螢光色段旋轉至第一光λ 1的光路上時處於開啟狀態。如此，第三光源還與第三控制裝置相連，通過第三控制裝置控制第三光源在螢光色段旋轉至第一光的光路上時處於開啟狀態，在透明色段旋轉至第一光的光路上時處於關閉狀態，即控制第三光源在第一時序關閉，在第二時序開啟。 In particular, in the present invention, the light source system further includes a third light source that emits the second compensation light, wherein the third light source is a red light emitting laser, and the second light source emits the second compensation light. The fluorescent color segment incident on the first rotating color wheel 1300 may also be incident on the second rotating color wheel 1301, and the fluorescent color segment or the second rotating color wheel 1301 may be used. The second compensation light, that is, the red light R1 is transmitted, and the red light of the polarization state is converted into the red light R1 of the non-polarization state. In addition, the first light modulating device 42 is further configured to simultaneously modulate the red light R and the red light R1 to enlarge the color coordinates of the red light R by the red light R1, increase the ratio of the red light, and expand the color gamut of the synthesized color image. Further, the third light source may be always in an open state, or may be in an open state only when the fluorescent color segment is rotated to the optical path of the first light λ 1 in order to save energy. In this way, the third light source is further connected to the third control device, and the third light source is controlled by the third control device to be in an open state when the fluorescent color segment is rotated to the optical path of the first light, and to rotate to the first light in the transparent color segment. When the light path is off, the third light source is controlled to be turned off at the first timing and turned on at the second timing.
因此，當第二光源402在整個時序內處於開啟狀態，而第三光源僅在第二時序處於開啟狀態時，就如同圖15所示，其中，該圖15為本發明實施例二中第一光調製裝置和第二光調製裝置的另一種調製時序圖。在第一時序，第一調製裝置42調製藍光B，第二光調製裝置43調製青光C；在第二時序，第一光調製裝置42同時調製紅光R和紅光R1，第二光調製裝置43同時調製綠光G和青光C。於實施例二中，透過光源系統在第一時序產生第一光束，在第二時序產生第二光束，第一光束包括第一光和第一補償光，第二光束包括第二光，或者包括第二光和第一補償光；通過分光裝置依序將第一光束和第二光束分成沿第一光路傳輸的光和沿第二光路傳輸的光，通過分光裝置依序將第一光束和第二光束分成沿第一光路傳輸的光和沿第二光路傳輸的光，從而可以採用第一補償光即青光對第一光即藍光，或對第二光分成的綠光進行補償，以擴大第一光或第二光的波譜範圍，使得合成 的彩色圖像的色域更寬廣，能夠滿足REC.709和DCI的色域標準；並且，本實施例提供的投影系統，採用兩個光調製裝置分別調製沿第一光路傳輸的光和沿第二光路傳輸的光，與採用單個光調製裝置的系統相比，光效和亮度更高，與採用三個光調製裝置的系統相比，結構更簡單，成本更低。 Therefore, when the second light source 402 is in the on state in the whole time sequence, and the third light source is in the on state only in the second time sequence, as shown in FIG. 15, wherein FIG. 15 is the first in the second embodiment of the present invention. Another modulation timing diagram of the light modulating device and the second light modulating device. In the first timing, the first modulation device 42 modulates the blue light B, the second light modulation device 43 modulates the cyan C; at the second timing, the first light modulation device 42 simultaneously modulates the red light R and the red light R1, the second light The modulation device 43 simultaneously modulates the green light G and the cyan light C. In the second embodiment, the first light beam is generated by the light source system at the first timing, and the second light beam is generated at the second timing, the first light beam includes the first light and the first compensation light, and the second light beam includes the second light, or The second light and the first compensation light are included; the first light beam and the second light beam are sequentially divided by the light splitting device into light transmitted along the first optical path and light transmitted along the second optical path, and the first light beam and the first light beam are sequentially passed through the light splitting device. The second light beam is divided into light transmitted along the first optical path and light transmitted along the second optical path, so that the first compensation light, that is, the blue light, or the green light divided by the second light, can be compensated by using the first compensation light, that is, Enlarging the spectral range of the first or second light to make the synthesis The color image has a wider color gamut and can meet the color gamut standards of REC.709 and DCI; and the projection system provided in this embodiment uses two light modulating devices to respectively modulate the light and the ray along the first optical path. The light transmitted by the two optical paths is higher in light efficiency and brightness than the system using a single light modulating device, and has a simpler structure and lower cost than a system using three light modulating devices.
請參閱圖16，係為本發明實施例三提供的投影系統結構示意圖。如圖所示，與其他實施例不同之處在於，於實施例三中的光源系統包括第一光源401和第一旋轉色輪1300；其中，第一光源401用於發射第一光λ 1，優選的，第一光源401為發射藍光的雷射器。第一旋轉色輪1300包括第一螢光色段和第二螢光色段，第一螢光色段和第二螢光色段依次旋轉至第一光λ 1的光路上，第一螢光色段用於吸收第一光並產生第二光，第二螢光色段用於吸收第一光並產生第一補償光。 FIG. 16 is a schematic structural diagram of a projection system according to Embodiment 3 of the present invention. As shown in the figure, the difference from the other embodiments is that the light source system in the third embodiment includes a first light source 401 and a first rotating color wheel 1300; wherein the first light source 401 is configured to emit the first light λ 1, Preferably, the first light source 401 is a blue light emitting laser. The first rotating color wheel 1300 includes a first fluorescent color segment and a second fluorescent color segment, wherein the first fluorescent color segment and the second fluorescent color segment are sequentially rotated to the optical path of the first light λ 1 , and the first fluorescent light The color segment is for absorbing the first light and generating the second light, and the second fluorescent color segment is for absorbing the first light and generating the first compensation light.
承上述，不同於實施例一和實施例二的第一補償光為青光是透過青雷射器產生的，其光譜較窄。於實施例三中，第一補償光是由螢光粉產生的，其光譜較寬。其中，與鐳射的窄光譜相比，光譜範圍超過10nm以上的即定義為寬譜光。在實施例三中，該第二螢光色段為具有青光螢光粉的區域或具有綠光螢光粉的區域，其中，綠光螢光粉偏青色，其產生的綠光的主波長在510nm~530nm之間。 According to the above, the first compensation light different from the first embodiment and the second embodiment is that the cyan light is generated by the blue laser, and the spectrum thereof is narrow. In the third embodiment, the first compensation light is generated by the phosphor powder, and the spectrum thereof is wide. Among them, a spectral range exceeding 10 nm or more is defined as a broad spectrum light compared to a narrow spectrum of laser light. In the third embodiment, the second fluorescent color segment is a region having a cyan fluorescent powder or a region having a green fluorescent powder, wherein the green fluorescent powder is cyan, and the main wavelength of the green light generated is Between 510nm and 530nm.
承上述，當第二螢光色段為具有青光螢光粉的區域時，第一螢光色段吸收第一光λ 1並產生第二光，即吸收藍鐳射產生黃光Y，第二螢光色段吸收第一光λ 1並產生第一補償光λ 7，即吸收藍光 產生青光C。其中，第二螢光色段還可以在產生青光C的同時，透射第一光λ 1即藍光，並將偏振態的藍光轉換為非偏振態的藍光B。分光裝置在第一時序將第一補償光分成沿第一光路傳輸的第一部分第一補償光和沿第二光路傳輸的第二部分第一補償光，即將青光C分成第一部分青光C1和第二部分青光C2，或將綠光G分成第一部分綠光G1和第二部分綠光G2；在第二時序將第二光分成沿第一光路傳輸的第三光和沿第二光路傳輸的第四光，即將黃光Y分成紅光R和綠光G。 According to the above, when the second fluorescent color segment is a region having cyan fluorescent powder, the first fluorescent color segment absorbs the first light λ 1 and generates the second light, that is, the absorption blue laser generates yellow light Y, and the second The fluorescent color segment absorbs the first light λ 1 and generates a first compensation light λ 7, that is, absorbs blue light Produces cyan C. Wherein, the second fluorescent color segment can also transmit the first light λ 1 , that is, blue light, and convert the blue light of the polarization state into the blue light B of the non-polarized state, while generating the cyan C. The splitting device divides the first compensation light into a first portion of the first compensation light transmitted along the first optical path and a second portion of the first compensation light transmitted along the second optical path at the first timing, that is, the cyan C is divided into the first portion of the cyan C1 And a second portion of the cyan C2, or dividing the green light G into a first portion of the green light G1 and a second portion of the green light G2; and dividing the second light into the third light and the second light path along the first optical path at the second timing The fourth light transmitted, that is, the yellow light Y is divided into red light R and green light G.
請繼續參閱圖17，係為本發明實施例三中第一光調製裝置和第二光調製裝置的一種調製時序圖。如圖所示，第一光調製裝置42在第一時序調製藍光B和第一部分青光C1，第二光調製裝置43在第一時序調製第二部分青光C2；第一光調製裝置42在第二時序調製紅光R，第二光調製裝置43在第二時序調製綠光G；以使調製後的藍光B、第一部分青光C1、第二部分青光C2、紅光R和綠光G合成彩色圖像。如此，當第二投影系統為具有綠光螢光粉的區域時，第一光調製裝置42和第二光調製裝置43的調製時序圖如圖18所示，同理，第一光調製裝置42在第一時序調製藍光B和第一部分綠光G1，第二光調製裝置43在第一時序調製第二部分綠光G2；第一光調製裝置42在第二時序調製紅光R，第二光調製裝置43在第二時序調製綠光G。 Please refer to FIG. 17, which is a modulation timing diagram of the first light modulating device and the second light modulating device in Embodiment 3 of the present invention. As shown, the first light modulating device 42 modulates the blue light B and the first portion of the cyan C1 at a first timing, and the second light modulating device 43 modulates the second portion of the cyan C2 at a first timing; the first light modulating device 42 modulating the red light R at the second timing, the second light modulating device 43 modulating the green light G at the second timing; so that the modulated blue light B, the first portion of the cyan C1, the second portion of the cyan C2, the red R and Green light G synthesizes a color image. As such, when the second projection system is a region having green phosphor powder, the modulation timing chart of the first light modulation device 42 and the second light modulation device 43 is as shown in FIG. 18. Similarly, the first light modulation device 42 is used. The blue light B and the first partial green light G1 are modulated at the first timing, the second light modulating device 43 modulates the second partial green light G2 at the first timing; the first light modulating device 42 modulates the red light R at the second timing, The two-light modulation device 43 modulates the green light G at the second timing.
承上述，當第二投影系統採用青光螢光粉時，由於產生的光在青光區域的比例較大，因此，可以直接將青光分成兩部分即分成第一部分青光C1和第二部分青光C2，並將第一部分青光C1與藍光混合，以對藍光進行校正，使其更接近DCI色域，此時分光裝置的分 光膜可以為低通鍍膜，也可以為帶通鍍膜。當第二投影系統採用綠光螢光粉時，由於產生的光的光譜會達到綠光區域，且比重比較大，因此，需要截取偏青光部分即波長不超過510nm的部分，也就是說，要將寬譜綠光分成兩部分，即分成第一部分綠光G1和第二部分綠光G2，並將截取光譜左邊部分即第一部分綠光G1與藍光混合，以對藍光進行校正，擴大合成的彩色圖像的色域，同時還能對綠光進行一定的校正，使其更接近DCI色域，此時，分光裝置的分光膜只能是綠光帶通鍍膜。 According to the above, when the second projection system adopts the cyan phosphor, since the proportion of the generated light in the cyan region is large, the cyan can be directly divided into two parts, that is, the first part is cyan C1 and the second part. Cyan C2, and the first part of the cyan C1 is mixed with the blue light to correct the blue light to make it closer to the DCI color gamut. The light film may be a low pass coating or a pass pass coating. When the second projection system adopts the green fluorescent powder, since the spectrum of the generated light reaches the green light region and the specific gravity is relatively large, it is necessary to intercept the partial portion of the cyan light, that is, the wavelength not exceeding 510 nm, that is, The broad-spectrum green light is divided into two parts, that is, divided into a first part of green light G1 and a second part of green light G2, and the left part of the intercepted spectrum, that is, the first part of green light G1 and blue light is mixed to correct blue light, and the synthesized The color gamut of the color image can also correct the green light to make it closer to the DCI color gamut. At this time, the spectroscopic film of the spectroscopic device can only be a green band pass coating.
此外，實施例三的光源系統還包括第三光源，該第三光源用於發射第二補償光，本實施例中通過第一旋轉色輪1300的第一螢光色段透射第二補償光，當然，本發明並不僅限於此，在其他實施例中，光源系統還可以包括第二旋轉色輪，以通過第二旋轉色輪透射第二補償光，同時將偏振態的紅光轉換為非偏振態的紅光R1；與此同時，第二光調製裝置43同時調製第三光和第二補償光，即同時調製紅光R和紅光R1。 In addition, the light source system of the third embodiment further includes a third light source for emitting the second compensation light. In the embodiment, the first fluorescent color segment of the first rotating color wheel 1300 transmits the second compensation light. Of course, the present invention is not limited thereto. In other embodiments, the light source system may further include a second rotating color wheel to transmit the second compensation light through the second rotating color wheel while converting the red light of the polarization state into the non-polarized light. At the same time, the second light modulating means 43 simultaneously modulates the third light and the second compensation light, that is, simultaneously modulates the red light R and the red light R1.
承上述，同樣，該第三光源400可以一直處於開啟狀態，也可以為了節約能源，僅在第一螢光色段旋轉至第一光的光路上時處於開啟狀態。當第三光源僅在第一螢光色段處於開啟狀態時，本實施例中的光源系統還包括與第三光源相連的第三控制裝置，用於控制第三光源在第一時序關閉，在第二時序開啟，即在第一螢光色段旋轉至第一光的光路上時開啟，在第二螢光色段旋轉至第一光的光路上時關閉。此時，請參閱圖19，係為本發明實施例三中第一光調製裝置和第 二光調製裝置的另一種調製時序圖。如圖所示，該第一光調製裝置42在第一時序同時調製藍光B和第一部分綠光G1，第二光調製裝置43在第一時序調製第二部分綠光G2；第一光調製裝置42在第二時序同時調製紅光R和紅光R1，第二光調製裝置43在第二時序調製綠光G。 In the above, similarly, the third light source 400 can be always in an open state, or can be in an open state only when the first fluorescent color segment is rotated to the optical path of the first light in order to save energy. When the third light source is only in the first fluorescent color segment, the light source system in this embodiment further includes a third control device connected to the third light source for controlling the third light source to be turned off at the first timing. The second timing is turned on, that is, when the first fluorescent color segment is rotated to the optical path of the first light, and is turned off when the second fluorescent color segment is rotated to the optical path of the first light. At this time, please refer to FIG. 19, which is a first light modulating device and a third embodiment of the present invention. Another modulation timing diagram for a two-light modulation device. As shown, the first light modulating device 42 simultaneously modulates the blue light B and the first partial green light G1 at the first timing, and the second light modulating device 43 modulates the second partial green light G2 at the first timing; the first light The modulating means 42 simultaneously modulates the red light R and the red light R1 at the second timing, and the second light modulating means 43 modulates the green light G at the second timing.
因此，於實施例三所述之投影系統，透過該光源系統在第一時序產生第一光束，在第二時序產生第二光束，第一光束包括第一光和第一補償光，第二光束包括第二光，通過分光裝置依序將第一光束和第二光束分成沿第一光路傳輸的光和沿第二光路傳輸的光，從而可以採用青光或綠光或青綠光對藍光進行補償，以擴大了藍光的色域，使得合成的彩色圖像的色域更寬廣，能夠滿足REC.709和DCI的色域標準；並且，實施例三所提供的投影系統，採用兩個光調製裝置分別調製沿第一光路傳輸的光和沿第二光路傳輸的光，與採用單個光調製裝置的系統相比，光效和亮度更高，與採用三個光調製裝置的系統相比，結構更簡單，成本更低。 Therefore, in the projection system of the third embodiment, the first light beam is generated at the first timing through the light source system, and the second light beam is generated at the second timing, the first light beam includes the first light and the first compensation light, and the second The light beam includes the second light, and the first light beam and the second light beam are sequentially divided by the light splitting device into the light transmitted along the first light path and the light transmitted along the second light path, so that the blue light can be performed by using cyan or green light or cyan light. Compensation to expand the color gamut of the blue light, making the color gamut of the synthesized color image wider, meeting the color gamut standards of REC.709 and DCI; and the projection system provided in the third embodiment adopts two light modulations The device modulates the light transmitted along the first optical path and the light transmitted along the second optical path, respectively, and has higher light efficiency and brightness than a system employing a single light modulating device, compared to a system employing three light modulating devices, the structure It's simpler and less expensive.
另外，於本發明中的實施例四中，所提供的投影系統與實施例一所提供的投影系統的結構大致相同，均包括光源系統、分光裝置、第一光調製裝置和第二光調製裝置，其不同之處在於，實施例四中的第二光源402為發射青光或綠光的發光二極體，且第二光源402發出的青光或綠光即第一補償光為寬譜光。 In addition, in the fourth embodiment of the present invention, the projection system provided is substantially the same as the projection system provided in the first embodiment, and includes a light source system, a light splitting device, a first light modulating device, and a second light modulating device. The difference is that the second light source 402 in the fourth embodiment is a light emitting diode that emits cyan or green light, and the first light source 402 emits a blue light or a green light, that is, the first compensation light is a broad spectrum light. .
請同時參考圖4，當第二光源402為發射青光的發光二極體時，旋轉色輪404的透明色段4042同時透射藍光和青光；分光裝置在第一時序將第一補償光分成第一部分第一補償光和第二部分第一 補償光，即將青光C分成第一部分青光C1和第二部分青光C2；在第二時序將第二光分成沿第一光路傳輸的第三光和沿第二光路傳輸的第四光，即將黃光Y分成紅光R和綠光G，第一光調製裝置42和第二光調製裝置43的調製時序圖如圖17所示，第一光調製裝置42在第一時序調製藍光B和第一部分青光C1，第二光調製裝置43在第一時序調製第二部分青光C2；第一光調製裝置42在第二時序調製紅光R，第二光調製裝置43在第二時序調製綠光G。 Referring to FIG. 4 simultaneously, when the second light source 402 is a light emitting diode that emits cyan, the transparent color segment 4042 of the rotating color wheel 404 simultaneously transmits blue light and cyan light; the splitting device will first compensate light at the first timing. Divided into a first part of the first compensation light and a second part first Compensating the light, that is, dividing the cyan C into a first portion of the cyan C1 and the second portion of the cyan C2; and dividing the second light into the third light transmitted along the first optical path and the fourth light transmitted along the second optical path at the second timing, The yellow light Y is divided into red light R and green light G. The modulation timing chart of the first light modulating device 42 and the second light modulating device 43 is as shown in FIG. 17, and the first light modulating device 42 modulates the blue light B at the first timing. And the first portion of the cyan C1, the second light modulating device 43 modulates the second portion of the cyan C2 at the first timing; the first light modulating device 42 modulates the red light R at the second timing, and the second light modulating device 43 at the second Timing modulated green light G.
此時，由於第二光源402產生的光在青光區域的比例較大，因此，可以直接將青光分成兩部分即分成第一部分青光C1和第二部分青光C2，並將第一部分青光C1與藍光混合，以對藍光進行校正，使其更接近DCI色域，此時分光裝置的分光膜可以為低通鍍膜，也可以為帶通鍍膜；當第二光源402為發射綠光的發光二極體時，旋轉色輪404的透明色段4042同時透射藍光和綠光；分光裝置在第一時序將綠光分成第一部分綠光G1和第二部分綠光G2；在第二時序將黃光Y分成紅光R和綠光G。另，請同時參閱圖18，係為本發明實施例三中第一光調製裝42置和第二光調製裝置43的另一種調製時序圖。如圖所示，該第一光調製裝置42在第一時序調製藍光B和第一部分綠光G1，第二光調製裝置43在第一時序調製第二部分綠光G2；第一光調製裝置42在第二時序調製紅光R，第二光調製裝置43在第二時序調製綠光G。 At this time, since the ratio of the light generated by the second light source 402 in the cyan region is large, the cyan light can be directly divided into two parts, that is, the first part of the cyan C1 and the second part of the cyan C2, and the first part is blue. The light C1 is mixed with the blue light to correct the blue light to be closer to the DCI color gamut. At this time, the light splitting film of the light splitting device may be a low pass coating or a band pass coating; when the second light source 402 is emitting green light In the case of the light emitting diode, the transparent color segment 4042 of the rotating color wheel 404 simultaneously transmits blue light and green light; the light splitting device divides the green light into the first partial green light G1 and the second partial green light G2 at the first timing; The yellow light Y is divided into red light R and green light G. In addition, please refer to FIG. 18, which is another modulation timing diagram of the first light modulation device 42 and the second light modulation device 43 in the third embodiment of the present invention. As shown, the first light modulating device 42 modulates the blue light B and the first portion of the green light G1 at a first timing, and the second light modulating device 43 modulates the second portion of the green light G2 at a first timing; the first light modulation The device 42 modulates the red light R at a second timing, and the second light modulating device 43 modulates the green light G at a second timing.
此時，由於第二光源402產生的光在綠光區域的比重比較大，因此，需要截取偏青光部分即波長不超過510nm的部分，也就是 說，要將寬譜綠光分成兩部分，即分成第一部分綠光G1和第二部分綠光G2，並將截取光譜左邊部分即第一部分綠光G1與藍光混合，以對藍光進行校正，擴大合成的彩色圖像的色域，同時還能通過第二部分綠光G2對綠光進行一定的校正，使其更接近DCI色域，此時，分光裝置的分光膜只能是綠光帶通鍍膜。 At this time, since the light generated by the second light source 402 has a relatively large specific gravity in the green light region, it is necessary to intercept the partial light portion, that is, the portion having a wavelength of not more than 510 nm, that is, It is said that the broad-spectrum green light is divided into two parts, that is, the first part of the green light G1 and the second part of the green light G2 are divided, and the left part of the intercepted spectrum, that is, the first part of the green light G1 and the blue light is mixed to correct the blue light and expand The color gamut of the synthesized color image can also be corrected by the second part of the green light G2 to make it closer to the DCI color gamut. At this time, the spectroscopic film of the spectroscopic device can only be the green band pass. Coating.
於實施例四所提供的投影系統，透過光源系統在第一時序產生第一光束，在第二時序產生第二光束，第一光束包括第一光和第一補償光，第二光束包括第二光，通過分光裝置依序將第一光束和第二光束分成沿第一光路傳輸的光和沿第二光路傳輸的光，從而可以採用青光或綠光對藍光進行補償，以擴大了藍光的色域，使得合成的彩色圖像的色域更寬廣，能夠滿足REC.709和DCI的色域標準；因此，本實施例所提供的投影系統，採用兩個光調製裝置分別調製沿第一光路傳輸的光和沿第二光路傳輸的光，與採用單個光調製裝置的系統相比，光效和亮度更高，與採用三個光調製裝置的系統相比，結構更簡單，成本更低。 In the projection system provided in Embodiment 4, the first light beam is generated by the light source system at the first timing, and the second light beam is generated at the second timing. The first light beam includes the first light and the first compensation light, and the second light beam includes the first light beam. The two lights are sequentially divided into the light transmitted along the first optical path and the light transmitted along the second optical path by the spectroscopic device, so that the blue light or the green light can be used to compensate the blue light to expand the blue light. The color gamut makes the color gamut of the synthesized color image wider, and can meet the color gamut standard of REC.709 and DCI; therefore, the projection system provided by this embodiment uses two light modulating devices to respectively modulate along the first The light transmitted by the optical path and the light transmitted along the second optical path have higher light efficiency and brightness than a system using a single light modulating device, and have a simpler structure and lower cost than a system using three light modulating devices. .
必須加以強調的是，上述之詳細說明係針對本發明可行實施例之具體說明，惟該實施例並非用以限制本發明之專利範圍，凡未脫離本發明技藝精神所為之等效實施或變更，均應包含於本案之專利範圍中。 It is to be understood that the foregoing detailed description of the embodiments of the present invention is not intended to Both should be included in the scope of the patent in this case.
λ 1‧‧‧第一光 λ 1‧‧‧First light
λ 2‧‧‧第一補償光 λ 2‧‧‧First compensation light
λ 3‧‧‧第二光束 λ 3‧‧‧second beam
λ 4‧‧‧第一光束 λ 4‧‧‧First beam
42‧‧‧第一光調製裝置 42‧‧‧First light modulation device
43‧‧‧第二光調製裝置 43‧‧‧Second light modulation device
44‧‧‧投影鏡頭 44‧‧‧Projection lens
401‧‧‧第一光源 401‧‧‧first light source
402‧‧‧第二光源 402‧‧‧second light source
403‧‧‧光中繼系統 403‧‧‧Optical Relay System
404‧‧‧旋轉色輪 404‧‧‧Rotating color wheel
405‧‧‧方棒 405‧‧‧ square bar
406‧‧‧光中繼系統 406‧‧‧Optical Relay System
407‧‧‧TIR棱鏡 407‧‧‧TIR prism
410‧‧‧第一棱鏡 410‧‧‧First prism
411‧‧‧第二棱鏡 411‧‧‧Second prism
412‧‧‧分光膜 412‧‧‧Splitting film
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| TW201416712A (en) * | 2012-10-31 | 2014-05-01 | Delta Electronics Inc | Solid state illuminator for stereoscopic display |
| TW201525605A (en) * | 2013-12-24 | 2015-07-01 | Delta Electronics Inc | Illumination system and projection device comprising the same |
| TW201541181A (en) * | 2014-04-24 | 2015-11-01 | Appotronics China Corp | A light source system and a projection display device using the system |
| TW201541180A (en) * | 2014-04-23 | 2015-11-01 | 深圳市繹立銳光科技開發有限公司 | A light source system and a projection system and a projection |
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| TW201416712A (en) * | 2012-10-31 | 2014-05-01 | Delta Electronics Inc | Solid state illuminator for stereoscopic display |
| TW201525605A (en) * | 2013-12-24 | 2015-07-01 | Delta Electronics Inc | Illumination system and projection device comprising the same |
| TW201541180A (en) * | 2014-04-23 | 2015-11-01 | 深圳市繹立銳光科技開發有限公司 | A light source system and a projection system and a projection |
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