TWI363928B

TWI363928B - Shading sheet and projector system using same

Info

Publication number: TWI363928B
Application number: TW97116273A
Authority: TW
Inventors: Yu Lun Ho; I Pen Chien
Original assignee: Hon Hai Prec Ind Co Ltd
Priority date: 2008-05-02
Filing date: 2008-05-02
Publication date: 2012-05-11
Also published as: TW200947104A

Description

13639281363928

101年01月11日後正替換頁六、發明說明：【發明所屬之技術領域】 [0001] 本發明涉及一種遮光片，尤其涉及一種用於投影系統之遮光片及使用該遮光片之投影系統。【先前技術】 [0002]投影機使用越來越大苯化，對其成像質量要求也越來越高，為了提高投影機之成像質量，往往需要對投影機多方面進行改進。其中，若投影機之系統掃描運算速度太慢，容易造成畫面播放時有殘影問題，為了解決該問題，許多廠家採用遮光器來減少殘影。 [0003] 請參閱圖1及圖2，遮光器1由一個馬達2及固定於其上之遮光片3組成，投影機之掃描系統通過控制線4進行控制。該遮光片3係一金屬板，金屬板上加工有特定形狀之‘中空結構3a，使部分光可以透過該遮光片3。然而此種結構設計方式為了達到高速旋轉之動平衡，必須精確計算出遮光片3之外形結構以及旋轉中心，以補償遮光片3因内 φ 部中空不規則產生之不平衡。、 [〇〇〇4]然而，加工位置精度誤差係無法避免，由於遮光片3旋轉半徑較大，稍微有一點加工誤差就可造成高速旋轉之不平衡。因此，必須進行額外之動平衡補償。由此，生產中，往往需要較長時間進行動爭衡調整。【發明内容】 [0005]有繁於此，有必要提供一種質量更加均勻，動平衡調整更加容易完成之遮光片及採用該遮光片之投影系統。 09711627产單编號 A0101BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light shielding sheet, and more particularly to a light shielding sheet for a projection system and a projection system using the same. [Prior Art] [0002] Projectors use more and more large benzene, and their imaging quality requirements are also higher and higher. In order to improve the imaging quality of the projector, it is often necessary to improve the projector in many aspects. Among them, if the system scanning speed of the projector is too slow, it is easy to cause residual image during screen playback. In order to solve this problem, many manufacturers use shutters to reduce image sticking. Referring to FIGS. 1 and 2, the shutter 1 is composed of a motor 2 and a light shielding plate 3 fixed thereto, and the scanning system of the projector is controlled by a control line 4. The light shielding sheet 3 is a metal plate on which a 'shaped hollow structure 3a of a specific shape is formed so that part of the light can pass through the light shielding sheet 3. However, in order to achieve the dynamic balance of the high-speed rotation, the structural design of the light-shielding sheet 3 must accurately calculate the outer shape of the light-shielding sheet 3 and the center of rotation to compensate for the imbalance of the light-shielding sheet 3 due to the hollow irregularity of the inner portion φ. [〇〇〇4] However, the machining position accuracy error cannot be avoided. Due to the large radius of rotation of the visor 3, a slight machining error can cause an unbalance of high-speed rotation. Therefore, additional dynamic balance compensation must be performed. As a result, in production, it often takes a long time to make adjustments. SUMMARY OF THE INVENTION [0005] In view of this, it is necessary to provide a light-shielding film which is more uniform in quality and easier to adjust by dynamic balance, and a projection system using the same. 09711627 Production Order No. A0101

第3頁/共15 I 1013013861-0 [0006] [0007] _ 101年01月11日接正替換頁於'成少投影機殘影之遮光片，其包括一個透明基板及至少〜如、 1固遮光膜，所述遮光膜設置有透光部，所述遮光膜t成於所述透明基板之至少—表面上。種才又衫系統’其包括光源、色輪、光通道、透鏡組、影像產生裝置及投影鏡頭組，所述光源產生之光線依次通過所述色輪、光通道及透鏡組後，進入所述影像產生裝置’所述影像產生裝置將光線投射經過所述投影鏡頭組成像’其中，該投影系統還包括一個遮光器，該遮光器包括一個遮光片及一個驅動元件，所述遮光片位於該投影系統光路中’所述遮光片包括一個透明基板及至少一個遮光膜’所述遮光膜設置有透光部，所述遮光膜形成於所述透明基板之至少一表面上，所述驅動元件用於驅動遮光#轉動。Page 3 / 15 I 1013013861-0 [0006] [0007] _ 101 January 101, replace the replacement page in the 'shadow projector's shadow film, which includes a transparent substrate and at least ~, 1, The light shielding film is provided with a light transmitting portion, and the light shielding film t is formed on at least a surface of the transparent substrate. The present invention includes a light source, a color wheel, a light channel, a lens group, an image generating device, and a projection lens group, and the light generated by the light source sequentially passes through the color wheel, the light channel, and the lens group, and then enters the An image generating device that projects a light through the projection lens to form an image therein, wherein the projection system further includes a shutter, the shutter includes a light shielding film and a driving component, and the light shielding film is located at the projection In the system optical path, the light shielding sheet includes a transparent substrate and at least one light shielding film. The light shielding film is provided with a light transmitting portion, and the light shielding film is formed on at least one surface of the transparent substrate, and the driving component is used for Drive shading #rotate.

[0008] [0009] 由於該遮光片採用於透明基板上覆有遮光膜之方式，所以使得該遮光片之質量分佈更加均勻，從而更快完成動平衡調整’達到提南生產效率之目的。【實施方式】下面將結合附圖對本發明實施方式作進一步之詳細描述[0009] Since the light shielding sheet is coated on the transparent substrate with a light shielding film, the mass distribution of the light shielding sheet is more uniform, thereby completing the dynamic balance adjustment more quickly to achieve the purpose of the production efficiency of the south. Embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0010] 請參閱圖3、圖4及圖5,為具有本發明提供之遮光片1〇之遮光器1〇〇。所述遮光片10用於投影機中，用於減少投影機之殘影。所述遮光片10固定於高速馬達20之轉軸20a上。所述高速馬達20通過控制線30由投影機内部之控制系統控制》 09711627#單編號第4頁/共15頁 1013013861-0 1363928 101年.01月U日按正替換頁 [0011] 所述遮光片10包括一個透明基板11及一個遮光膜12。所述遮光膜12形成於所述透明基板11上。 [0012] 所述透明基板11之材料為坡璃或塑膠。本實施方式中，採用塑膠。所述透明基板11之形狀為圓形。可以理解，由於該遮光片10固定於高速旋轉之高速馬達20之轉軸20a 上進行自轉運動，所以可以採用其他易達到動平衡，也可以滿足投影機遮光效果之中心對稱圖形，例如正多邊形。所述透明基板11旋轉中心設置有一個孔11a。該孔 # 11a套於所述高速馬達20之轉軸20a上。本實施方式中，採用膠將遮光片10固定於所述高速馬達20之轉軸20a上。 [0013] 所述遮光膜12採用鍍膜方式或印刷方式形成於所述透明基板11上。本實施方式中，採用鍍膜方式鑛於所述透明基板11一面。可以理解’透明基板11兩面均可以鍍有遮光膜12。所述遮光膜12設置有透光部12a。該透光部12a 可以係形成於所述遮光膜12上之缺口或係遮光膜12本身製作有透明之膜結構。所述透光部12a之形狀係設計成減 • 少殘影之特殊圖案。本實施方式中，所述透光部12a採用螺旋狀缺口。 [0014] 所述遮光片10可應用於投影系統200中。該投影系統200 包括光源110、色輪120、光通道130、透鏡組140、影像產生裝置150、投影鏡頭組160及遮光器100。 [0015] 所述光源110產生光線依次通過所述色輪120、光通道 130及透鏡組140後，進入所述影像產生裝置150，所述影像產生裝置150將光線投射經過所述投影鏡頭組160成 09711627#單編珑 ΑΟίοι 第5頁/共15頁 1013013861-0Referring to FIG. 3, FIG. 4 and FIG. 5, there is a shutter 1B having a light shielding sheet 1 provided by the present invention. The light shielding sheet 10 is used in a projector for reducing image sticking of the projector. The light shielding sheet 10 is fixed to the rotating shaft 20a of the high speed motor 20. The high speed motor 20 is controlled by the control system inside the projector through the control line 30. 09711627#单号第4页/15 pages 1013013861-0 1363928 101.01月月日日正正换页[0011] The sheet 10 includes a transparent substrate 11 and a light shielding film 12. The light shielding film 12 is formed on the transparent substrate 11. [0012] The material of the transparent substrate 11 is a glass or a plastic. In the present embodiment, plastic is used. The transparent substrate 11 has a circular shape. It can be understood that since the visor 10 is fixed to the rotating shaft 20a of the high-speed rotating high-speed motor 20 for the rotation motion, other symmetrical patterns which are easy to achieve dynamic balance and satisfy the shading effect of the projector, such as a regular polygon shape, can be used. A hole 11a is provided in the center of rotation of the transparent substrate 11. The hole #11a is fitted over the rotating shaft 20a of the high speed motor 20. In the present embodiment, the light shielding sheet 10 is fixed to the rotating shaft 20a of the high speed motor 20 by means of glue. [0013] The light shielding film 12 is formed on the transparent substrate 11 by a plating method or a printing method. In the present embodiment, one side of the transparent substrate 11 is deposited by a plating method. It is understood that the transparent substrate 11 may be plated with the light shielding film 12 on both sides. The light shielding film 12 is provided with a light transmitting portion 12a. The light transmitting portion 12a may be formed in a notch on the light shielding film 12 or the light shielding film 12 itself may be formed with a transparent film structure. The shape of the light transmitting portion 12a is designed to reduce the special pattern of image sticking. In the present embodiment, the light transmitting portion 12a is formed by a spiral notch. [0014] The light shielding sheet 10 can be applied to the projection system 200. The projection system 200 includes a light source 110, a color wheel 120, a light tunnel 130, a lens group 140, an image generating device 150, a projection lens group 160, and a shutter 100. [0015] The light source 110 generates light rays sequentially through the color wheel 120, the light channel 130, and the lens group 140, and then enters the image generating device 150, and the image generating device 150 projects light rays through the projection lens group 160.成09711627#单编珑ΑΟίοι Page 5 of 15 1013013861-0

1101^ 01^ 11Β I 像，顯示於顯示屏90上。1101^ 01^ 11Β I Image, displayed on display 90.

t〇〇16]所述遮光器100包括遮光片10及高速馬達20。所述遮光片 10設置於光源11〇發出光之光路上。該遮光片1〇可以設置於光源110發出光之光路上任意位置。所述遮光片10可設置於投影鏡頭組160内（如圖5中e處所示）’可設置於光線通過該色輪12〇之後（如圖5中a處所示）’可設置於光線通過該光通道130之後（如圖5中b處所示）’或設置於光線通過該影像產生裝置150之前（如圖5中c處所示）或之後（如圖5中d處所示）。只要可以達成減少投影機之殘影效果即可。本實施方式中，所述遮光片10設置於光線通過該影像產生裝置150.之後（如®5中d處所示）。 [0017] 由於該遮光片採用於透明基板上覆有遮光膜之方式，所以使得該遮光片之質量分佈更加均勻，從而更快完成動平衡調整，達到提高生產效率之目的。 [0018] ,The shutter 100 includes a light shielding sheet 10 and a high speed motor 20. The light shielding sheet 10 is disposed on the light path of the light source 11 to emit light. The light shielding sheet 1〇 can be disposed at any position on the light path where the light source 110 emits light. The light shielding film 10 can be disposed in the projection lens group 160 (as shown at e in FIG. 5), and can be disposed after the light passes through the color wheel 12 (as shown at a in FIG. 5). After passing through the optical channel 130 (as shown at b in FIG. 5)' or before the light passes through the image generating device 150 (as shown at c in FIG. 5) or after (as shown at d in FIG. 5) . As long as you can achieve the effect of reducing the residual image of the projector. In this embodiment, the light shielding sheet 10 is disposed after the light passes through the image generating device 150. (as shown at d in the ®5). [0017] Since the light shielding sheet is coated on the transparent substrate with a light shielding film, the mass distribution of the light shielding sheet is more uniform, thereby completing the dynamic balance adjustment more quickly, thereby achieving the purpose of improving production efficiency. [0018] ,

W上所述’本發明確已符合發明專利之要件，遂依法提出專利申請。惟，以上所述者僅為本發明之較佳實施方式，自不能以此限制本案之申請專利範圍。舉凡熟悉本案技藝之人士援依本發明之精神所作之等效修飾或變化 ’皆應涵蓋於以下申請專利範圍内。【圖式簡單說明】圖1為先前投影機所採用遮光器之遮光片之俯視圖；圖2為先前投影機所採用遮光器之示意圖；圖3為本發明提供具有遮光片之遮光器之俯視圖； [0022]圖 4 , 〇971162潫單編乾A01〇1為本發明提供具有遮光片之遮光器之示意圖；第6頁/共15頁 1013013861-0 1363928 101年01月11日修正替换頁 [0023] 圖5為本發明提供一種投影系統之示意圖。【主要元件符號說明】The invention described above has indeed met the requirements of the invention patent and has filed a patent application in accordance with the law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the present invention are intended to be included within the scope of the following claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a shutter of a shutter used in a conventional projector; FIG. 2 is a schematic view of a shutter used in a conventional projector; FIG. 3 is a plan view showing a shutter having a light shielding sheet according to the present invention; [0022] FIG. 4 is a schematic diagram of a shutter having a light shielding sheet according to the present invention; Page 6 of 15 1013013861-0 1363928 Correction replacement page of January 11, 2011 [0023] FIG. 5 is a schematic diagram of a projection system according to the present invention. [Main component symbol description]

[0024] 馬達：2 [0025] 中空結構：3a [0026] 遮光器：1、100 [0027] 遮光片：3、10 [0028] 透明基板：11 [0029] 孔：11a [0030] 遮光膜：12 [0031] 透光部：12a [0032] 高速馬達：20 [0033] 轉轴：20a [0034] 控制線：4、30 [0035] 投影系統：200 [0036] 光源：110 [0037] 色輪：120 [0038] 光通道：130 [0039] 透鏡組：140 [0040] 影像產生裝置：150 [0041] 投影鏡頭組：160 09711627^^ A〇101 第7頁/共15頁 1013013861-0 1363928 __ 101年01月11日修正替換頁 [0042] 顯示屏：90 09711627^^^^ A〇101 第8頁/共15頁 1013013861-0[0024] Motor: 2 [0025] Hollow structure: 3a [0026] Shutter: 1, 100 [0027] Light shielding sheet: 3, 10 [0028] Transparent substrate: 11 [0029] Hole: 11a [0030] Light shielding film: 12 [0031] Translucent part: 12a [0032] High speed motor: 20 [0033] Rotary shaft: 20a [0034] Control line: 4, 30 [0035] Projection system: 200 [0036] Light source: 110 [0037] Color wheel :120 [0038] Optical channel: 130 [0039] Lens group: 140 [0040] Image generating device: 150 [0041] Projection lens group: 160 09711627^^ A〇101 Page 7 of 15 1013013861-0 1363928 __ Corrected replacement page on January 11, 101 [0042] Display: 90 09711627^^^^ A〇101 Page 8 of 15 1013013861-0

Claims

101年.01月11日梭正替換頁七、申請專利範圍： 1 · -種用於減少投影機殘影之遮光片，其包括一個透明基板及至少一個遮光膜’所述遮光膜設置有透光部，所述透光部為與所述遮光膜—體設置之透明膜結構，所述遮光膜形成於所述透明基板之至少一表面上。 2. 如申請專利範圍第丨項所述之遮光片其中，所述透明基板之材料為玻璃或塑勝。 3. 如申請專利範圍第丨項所述之遮光片其中，所述遮光膜採用鍍膜方式或印刷方式形成於所述透明基板上。 4 .種扠影系統，其包括光源、色輪、光通道、透鏡組、影像產生裝置及投影鏡頭組，所述光源產生之光線依次通過所述色輪、光通道及透鏡組後，進入所述影像產生裝置，所述影像產生裝置將光線投射經過所述投影鏡頭組成像，其中，該投影系統還包括一個遮光器，該遮光器包括一個遮光片及一個驅動元件，所述遮光片位於該投影系統光路中，所述遮光片包括一個透明基板及至少一個遮光膜，所述遮光膜設置有透光部，所述透光部為與所述遮光膜一體設置之透明膜結構，所述遮光膜形成於所述透明基板之至少一表面上，所述驅動元件用於驅動遮光片轉動。 5.如申請專利範圍第4項所述之投影系蛛，其中，所述透明基板之材料為玻璃或塑膠》 6 .如申請專利範圍第4項所述之投影系純，其中，所述遮光膜採用鍵膜方式或印刷方式形成於所迷透明基板上。 7.如申請專利範圍第4項所述之投影***，其中，所述遮光片設置於光線通過該色輪之後。第9頁/共15頁 1013013861-0 1363928 __ 101年01月11日修正替換頁 8 .如申請專利範圍第4項所述之投影系統，其中，所述遮光片設置於光線通過該光通道之後。 9 .如申請專利範圍第4項所述之投影系統，其中，所述遮光片設置於光線通過該影像產生裝置之前。 10 .如申請專利範圍第4項所述之投影系統，其中，所述遮光片設置於光線通過該影像產生裝置之後。 11 .如申請專利範圍第4項所述之投影系統，其中，所述遮光片設置於投影鏡頭組内。 09711627#單编號 A〇101 第10頁/共15頁101.01月11日 Shuttle replacement page VII, the scope of application for patents: 1 · A type of light-shielding film for reducing the residual image of the projector, comprising a transparent substrate and at least one light-shielding film In the light portion, the light transmitting portion is a transparent film structure provided on the light shielding film, and the light shielding film is formed on at least one surface of the transparent substrate. 2. The light-shielding sheet of claim 2, wherein the transparent substrate is made of glass or plastic. 3. The light-shielding sheet according to the above aspect of the invention, wherein the light-shielding film is formed on the transparent substrate by a coating method or a printing method. 4. A fork shadow system, comprising: a light source, a color wheel, a light channel, a lens group, an image generating device, and a projection lens group, wherein the light generated by the light source sequentially passes through the color wheel, the light channel, and the lens group, and then enters the The image generating device is configured to project light through the projection lens to form an image, wherein the projection system further includes a shutter, the shutter includes a light shielding film and a driving component, wherein the light shielding film is located In the light path of the projection system, the light shielding sheet comprises a transparent substrate and at least one light shielding film, the light shielding film is provided with a light transmitting portion, and the light transmitting portion is a transparent film structure integrally provided with the light shielding film, the light shielding A film is formed on at least one surface of the transparent substrate, and the driving element is used to drive the light shielding sheet to rotate. 5. The projection system according to claim 4, wherein the material of the transparent substrate is glass or plastic. 6. The projection system according to claim 4, wherein the shading is The film is formed on the transparent substrate by a bonding film method or a printing method. 7. The projection system of claim 4, wherein the visor is disposed after light passes through the color wheel. </ RTI> <RTIgt; </ RTI> <RTIgt; . 9. The projection system of claim 4, wherein the visor is disposed before light passes through the image generating device. 10. The projection system of claim 4, wherein the visor is disposed after light passes through the image generating device. The projection system of claim 4, wherein the visor is disposed in the projection lens group. 09711627#单号 A〇101 Page 10 of 15

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