CN103676090B - And a projection apparatus having a lens module and imaging lens module means - Google Patents

And a projection apparatus having a lens module and imaging lens module means Download PDF

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CN103676090B
CN103676090B CN 201310395001 CN201310395001A CN103676090B CN 103676090 B CN103676090 B CN 103676090B CN 201310395001 CN201310395001 CN 201310395001 CN 201310395001 A CN201310395001 A CN 201310395001A CN 103676090 B CN103676090 B CN 103676090B
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lens
light
formed
portion
image
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CN 201310395001
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Chinese (zh)
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CN103676090A (en )
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郑泓佑
林裕修
陈佑柏
陈时伟
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扬明光学股份有限公司
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Abstract

一种镜头模块及具有镜头模块的投影装置及取像装置,镜头模块设置于物侧与像侧之间以接收影像光束且包含透镜群。 A lens module and a projection apparatus having a lens module and the imaging means, the lens module is disposed between the object side and the image side to receive the image beam and comprising a lens group. 影像光束具有预定遮蔽部分,透镜群包含多个透镜,其中多个透镜的至少其中之一的部分表面形成有至少一遮光区,且遮光区位于预定遮蔽部分的传递路径上。 Shielding portion having a predetermined image beam, a lens group comprising a plurality of lenses, at least one portion of the surface of which a plurality of lenses formed therein at least one light-shielding area, and the light shielding region is located on the transmission path of a predetermined portion of the shield.

Description

镜头模块及具有镜头模块的投影装置及取像装置 And a projection apparatus having a lens module and imaging lens module means

技术领域 FIELD

[0001] 本发明涉及一种镜头模块及具有镜头模块的投影装置及取像装置。 [0001] The present invention relates to a projection apparatus having a lens module and a lens module and the image capturing device.

背景技术 Background technique

[0002] 于一已知的数字光处理投影装置中,发光二极管发出的光线通过合光模块及照明透镜组后入射至一数字微镜装置。 [0002] In one known digital light processing projection apparatus, the light emitted from the light emitting diode is incident to a digital micromirror device by bonding the optical module and the illumination lens group. 数字微镜装置利用多个微镜片来反射光线,经由微镜片的摆动改变倾斜角度,可将光线反射至投影镜头后投射至屏幕。 A digital micromirror device with a plurality of micro lenses to reflect the light, changing the inclination angle of the swing through the micro lens, the light can be reflected to the projection lens projected on the screen. 由于数字微镜装置摆动角度及其他设计参数上的限制,于数字微镜装置的暂态(temporary state)或暗态(offstate)下,部分光线会透过投影镜头投射至屏幕形成杂散光,造成显示对比度下降的问题。 Due to restrictions on the pivot angle of the DMD devices and other design parameters in the transient (temporary state) or a digital micromirror device at the dark state (offstate), some of the light projected onto the screen through a projection lens formed of stray light, resulting in display problems reduction in contrast.

[0003] 美国专利公告号6637894揭露一种减少杂散光产生的设计。 [0003] U.S. Patent Publication No. 6,637,894 discloses a design to reduce stray light. 如图9所示,投影光学系统100中的孔径光栏102设置于第一透镜群104与第二透镜群106之间,且孔径光栏102具有利用机构件所形成的遮挡部102a,以遮挡由空间光调制器108反射的光线中的不必要部分,藉以提高显示对比度。 9, the projection optical system 100 in the aperture stop 102 is provided in the first lens group and the second lens group 104 between 106, 102 and the aperture stop mechanism having a shutter portion 102a by using the formed member, to block unnecessary portion of light by the spatial light modulator 108 is reflected, thereby improving the display contrast. 其他的已知设计例如美国专利公开号20090046381中揭露具有开口的孔径单元以遮挡入射至透镜的杂散光,美国专利公告号6773120揭露一种具有猫眼孔径的光学投影系统,藉由猫眼孔径控制入射至数字微镜装置的入射光角度,可获得阻挡杂散光的效果。 Other known design, for example, in U.S. Patent Publication No. 20090046381 discloses an aperture means having an opening to shield stray light is incident to the lens, U.S. Patent Publication No. 6,773,120 discloses a projection optical system having an aperture cat, with cat incident aperture control DMD incident angle, stray light blocking effect can be obtained.

发明内容 SUMMARY

[0004] 本发明提供一种具低制造成本及高设计自由度的镜头模块与具有该镜头模块的投影装置及取像装置。 [0004] The present invention provides a low cost and having a high degree of design freedom of the projection lens module having the lens apparatus and the image capturing device module.

[0005] 本发明的其他目的和优点可以从本发明所揭露的技术特征中得到进一步的了解。 [0005] Other objects and advantages of the present invention may be further understood from the technical features disclosed in the present invention. 为达上述之一或部分或全部目的或是其他目的,本发明的一实施例提供一种投影装置,其包含影像产生单元以及镜头模块。 To achieve one or some or all of the above objects or other objects, an embodiment of the present invention to provide a projection apparatus which includes an image generating unit and the lens module. 影像产生单元用以提供影像光束,且影像光束具有预定遮蔽部分。 Image generating means for providing an image beam, and the image light beam having a predetermined shielding portion. 镜头模块设置于影像光束的传递路径上且包含设置于物侧与像侧之间的透镜群。 Lens module disposed on the transmission path of the image beam to the object and comprising disposed between the side and the image side lens group. 透镜群包含多个透镜,其中这些透镜的至少其中之一的部分表面形成有至少一遮光区,且遮光区位于预定遮蔽部分的传递路径上。 Lens group includes a plurality of lenses, wherein at least one portion of the surface of the lens is formed with at least one light-shielding area, and the light shielding region is located on the transmission path of a predetermined portion of the shield.

[0006] 于一实施例中,预定遮蔽部分包括绕射光线。 [0006] In one embodiment, the predetermined diffraction beam includes a shielding portion.

[0007] 于一实施例中,遮光区直接形成于透镜的部分表面,例如遮光区可包含形成于透镜部分表面的转印区块、涂墨区块及贴附于透镜的部分表面的遮光片的至少其中之一。 [0007] surface of the portion of the embodiment, the light shielding region is formed directly on the lens of an embodiment, the light shielding region may comprise, for example, is formed on the transfer blocks of the portion of the surface of the lens, the light-shielding sheet attached to the inked block and a portion of the surface of the lens at least one of them.

[0008] 于一实施例中,遮光区形成于透镜的至少一边缘区域。 [0008] In one embodiment, the light shielding region is formed in at least one edge region of the lens.

[0009] 于一实施例中,镜头模块还包含孔径光栏,孔径光栏设置于物侧与像侧之间,且遮光区形成于所有透镜中邻近孔径光栏的透镜。 [0009] In an embodiment, the lens module further comprises aperture diaphragm aperture stop disposed between the object side and the image side, and the light shielding region is formed in all of the lenses of the lens adjacent the aperture diaphragm.

[0010] 于一实施例中,投影装置还包含照明单元,影像产生单元为光阀,光阀设置于照明单元所提供的照明光束的传递路径上,以将照明光束转换为影像光束。 [0010] In an embodiment, the projection apparatus further comprises an illumination unit, the image generating unit is a light valve, the light valve is disposed on a transmission path of the illumination beam of the lighting unit provided to the illumination beam into image beam.

[0011] 于一实施例中,影像产生单元为数字微镜装置(Digital MicromirrorDevice,DMD),其中于数字微镜装置的亮状态下,影像光束通过透镜群所造成的光强度损失可小于30%。 [0011] In one embodiment, the image generation unit is a digital micromirror device (Digital MicromirrorDevice, DMD), wherein in the bright state of the digital micromirror device, the light intensity of the image beam loss caused by the lens group may be less than 30% .

[0012] 本发明的另一实施例提供一种镜头模块,镜头模块用以接收影像光束且包含设置于物侧与像侧之间的透镜群。 Another [0012] The present invention provides a lens module of the embodiment, the lens module receives the image beam and comprising a lens disposed to the object side and the image side between group. 影像光束具有预定遮蔽部分,透镜群包含多个透镜,其中多个透镜的至少其中之一的部分表面形成有至少一遮光区,且遮光区位于预定遮蔽部分的传递路径上。 Shielding portion having a predetermined image beam, a lens group comprising a plurality of lenses, at least one portion of the surface of which a plurality of lenses formed therein at least one light-shielding area, and the light shielding region is located on the transmission path of a predetermined portion of the shield.

[0013] 本发明的另一实施例提供一种取像装置,包含镜头模块以及感光单元。 [0013] Another embodiment of the present invention to provide an image capturing apparatus, and a photosensitive unit comprising a lens module. 感光单元用以接收影像光束,该影像光束具有预定遮蔽部分,且镜头模块设置于影像光束的传递路径上并包含设置于物侧与像侧之间的透镜群,透镜群包含多个透镜,这些透镜的至少其中之一的部分表面形成有至少一遮光区,遮光区位于预定遮蔽部分的传递路径上。 Photosensitive unit receives image beam, the image beam having a predetermined shielding portion and the lens module is disposed in the image beam path and comprising a transmission provided with the image side to the object side lens group among the lens groups comprising a plurality of lenses, these wherein at least a portion of one surface of the lens is formed with at least one light-shielding area shielding the predetermined area is located in the transmission path of the shielding portion.

[0014] 于一实施例中,感光单元可为电荷耦合元件及互补式金氧半导体的至少其中之 [0014] In one embodiment, the photosensitive unit may be a charge coupled device and a complementary metal oxide semiconductor at least of which

O O

[0015] 综上所述,本发明的实施例至少具有下列其中一个优点: [0015] In summary, embodiments of the present invention have at least the following advantages:

[0016] 在本发明的上述实施例中,可于镜头模块的透镜的表面上形成遮光区,使得影像光束中的预定遮蔽部分可被有效地遮挡,进而使应用此镜头模块的投影装置的投影品质或取像装置的取像品质获得提升。 [0016] In the above embodiment of the present invention may be on the surface of the lens of the lens module is formed light-shielding region, so that a predetermined masking part of the image beam can be effectively blocked, and thus the projection projection apparatus applying this lens module quality, or the quality of imaging device imaging promoted. 此外,藉由上述各个实施例的设计,因为遮光区可直接形成于镜头模块的至少一透镜表面上,故不需已知设计额外设置的遮光机构件,如此不仅可减少整体的构件数量、成本且可提高设计自由度。 Further on at least one surface of the lens, with various design embodiments described above, since the light shielding region may be formed directly on the lens module, it is designed without additional known light blocking member disposed mechanism, so not only can reduce the overall number of components, cost and greater design freedom.

附图说明 BRIEF DESCRIPTION

[0017] 本发明的其他目的和优点可以从本发明所揭露的技术特征中得到进一步的了解。 [0017] Other objects and advantages of the present invention may be further understood from the technical features disclosed in the present invention. 为让本发明的上述和其他目的、特征和优点能更明显易懂,下文特举实施例并配合附图,作详细说明如下。 To make the above and other objects, features and advantages of the invention more comprehensible, several embodiments accompanied with figures are described in detail below.

[0018] 图1为依本发明一实施例的投影装置的示意图。 [0018] Figure 1 is a schematic view of a projection apparatus according to an embodiment under this invention.

[0019]图2为依本发明一实施例的数字微镜装置及其光路的示意图。 [0019] FIG. 2 is a schematic view of a digital micromirror device under this invention, and the optical path according to an embodiment.

[0020]图3为依本发明一实施例的镜头模块的示意图。 [0020] FIG. 3 is a schematic view of a lens module according to an embodiment of the present invention under this.

[0021] 图4A显示数字微镜装置于亮态下的光斑分布图,图4B显示数字微镜装置于暂态下的光斑分布图。 [0021] Figure 4A shows a spot distribution at the transient FIG digital micromirror device in a digital micromirror device spot light distribution in a state, FIG. 4B shows.

[0022] 图5为遮光区于透镜表面的不同分布实施例的不意图。 [0022] FIG. 5 is a light shielding region is not intended to a different embodiment of the distribution of the lens surface.

[0023] 图6为绕射光斑的分布不意图。 [0023] FIG. 6 is a diffraction spot not intended distribution.

[0024] 图7为遮光区于透镜表面的不同分布实施例的不意图。 [0024] FIG. 7 is a light-shielding region is not intended to a different embodiment of the distribution of the lens surface.

[0025]图8为本发明一实施例的取像装置示意图。 [0025] FIG. 8 a schematic image capturing device according to an embodiment of the present invention.

[0026] 图9为一已知投影光学系统的示意图。 [0026] FIG. 9 is a schematic view of a known projection optical system.

[0027] 主要元件符号说明 [0027] Main reference numerals DESCRIPTION

[0028] 10 投影装置 [0028] 10 projection apparatus

[0029] 12 照明单元 [0029] The lighting unit 12

[0030] 14 影像产生单元 [0030] The image generation unit 14

[0031] 14a数字微镜装置 [0031] 14a digital micromirror device

[0032] 20 镜头模块 [0032] Lens module 20

[0033] 22 透镜群 [0033] 22 lens group

[0034] 22a-22e 透镜 [0034] 22a-22e of the lens

[0035] 24 孔径光栏 [0035] The aperture stop 24

[0036] 26 绕射光斑 [0036] diffraction spot 26

[0037] 30 取像装置 [0037] The image capturing device 30

[0038] 32 感光单元 [0038] The photosensitive unit 32

[0039] 100投影光学系统 [0039] The projection optical system 100

[0040] 102孔径光栏 [0040] The aperture stop 102

[0041] 102a 遮挡部 [0041] 102a shielding portion

[0042] 104第一透镜群 [0042] The first lens group 104

[0043] 106第二透镜群 [0043] The second lens group 106

[0044] 108空间光调制器 [0044] The spatial light modulator 108

[0045] I 照明光束 [0045] I illuminating beam

[0046] IF、頂、IP影像光束 [0046] IF, top, IP image beam

[0047] P、Q 遮光区 [0047] P, Q shielding region

具体实施方式 Detailed ways

[0048] 有关本发明的前述及其他技术内容、特点与功效,在以下配合参考图式的实施例的详细说明中,将可清楚的呈现。 [0048] For the aforementioned and other technical contents, features and effects of the present invention, the following detailed description of embodiments with reference to the drawings of the embodiment, the presentation may be practiced. 以下实施例中所提到的方向用语,例如:上、下、左、右、前或后等,仅是参考附图的方向。 Directional phrases mentioned embodiments in the following examples, for example: upper, lower, left, right, front, rear, or the like, only the direction of reference to the drawings. 因此,使用的方向用语是用来说明并非用来限制本发明。 Accordingly, the directional terms used are intended to illustrate not to limit the invention.

[0049] 图1为依本发明一实施例的投影装置的示意图。 [0049] Figure 1 is a schematic view of a projection apparatus according to an embodiment under this invention. 如图1所示,投影装置10包含照明单元12、影像产生单元14以及镜头模块20。 1, the projector 10 comprises an illumination unit 12, the image generation unit 14, and a lens module 20. 影像产生单元14接收来自照明单元12的照明光束I并将照明光束I调变为影像光束頂,镜头模块20设置于影像光束頂的传递路径以投射出影像光束UL影像产生单元14例如可为光阀,举例而言,影像产生单元14可为如图2所示的数字微镜装置(Digital Micromirror Device, DMD) 14a。 Image generating unit 14 receives the illumination beam I and the illumination beam from the illumination unit 12 becomes modulated image beam I top, lens module 20 provided in the transmission path of the image light to project an image of the top beam UL image generating unit 14, for example, may be a light valve, for example, the image generating unit 14 may be a digital micromirror device (digital micromirror device, DMD) 14a as shown in FIG. 图3为依本发明一实施例的镜头模块的示意图,本实施例的镜头模块20可包含设置于物侧与像侧之间的透镜群22,其中透镜群22可由多个透镜22a-22e构成,且孔径光栏24位于透镜22c与透镜22d之间。 3 is a schematic view of a lens module according to the invention, under this embodiment, the lens module 20 of the present embodiment may include a lens disposed to the object side and the image group 22 between the side, wherein the lens group 22 constituted by a plurality of lenses 22a-22e , and the aperture stop 24 located between the lens 22c and the lens 22d. 此外,图3的镜头模块20中是以进一步设置孔径光栏24为例,但本发明并非限于必需设置孔径光栏。 Further, FIG. 20 of the lens module 3 is further aperture diaphragm 24 is provided as an example, but the present invention is not limited necessarily provided aperture stop.

[0050] 关于数字微镜装置14a的作动方式,重回图2所示,于一实施例中,数字微镜装置14a可由起始的平面状态(Flat state)朝一轴向偏转12°之后,再朝另一轴向进行± 12°的偏移以处于亮态(On state)或暗态(Off state),进而于亮态下可得到17°的入射角,并可使入射光行进方向与亮态、暂态(Temporary state)与暗态下的反射光行进方向不位于同一光轴上。 [0050] About the actuator embodiment 14a of the digital micromirror device, back to FIG. 2, in one embodiment, it may be the initial planar state 14a (Flat state) digital micromirror device toward the axial direction after a 12 ° deflection, then toward the other axial offset ± 12 ° to be in the bright state (on state) or a dark state (Off state), and thus the incident angle of 17 ° can be obtained in a bright state, and allows the traveling direction of the incident light bright state, transient (Temporary state) and the traveling direction of the reflected light dark-state is not located on the same optical axis. 然而数字微镜装置14a的作动方式并不限于上述实施例,举例来说,数字微镜装置14a也可由起始的平面状态直接进行±12°的偏移以处于亮态或暗态。 However, a digital micromirror device actuator embodiment 14a is not limited to the above embodiments, for example, a digital micromirror device 14a initial planar state may also be directly offset ± 12 ° to be in a bright state or a dark state.

[0051] 承上所述,本实施例可针对数字微镜装置14a于暂态或暗态下的光线进行遮蔽,以提升显示画面的对比度。 [0051] bearing on the present embodiment may be performed for the digital micromirror device to light or dark state under transient shield 14a in order to enhance the contrast of the display screen. 具体而言,图4A与图4B分别显示亮态下与暂态下数字微镜装置于透镜群的其中之一透镜所形成的光斑分布,图5为遮光区于透镜表面的不同分布实施例的示意图。 Specifically, FIG. 4A and 4B show the transient digital micromirror device wherein the spot formed by one of the lenses located in the lens group light state, FIG. 5 is a light blocking region in a different embodiment of the distribution of the lens surface schematic diagram. 请同时参考图3、图4A、图4B与图5,假设于亮态下光斑形成于透镜22a-22e的中央区域且亮度往周缘递减,并假设于暂态下光斑则通常形成于透镜22a_22e的边缘区域,本实施例利用于透镜22a-22e的至少其中之一的部分表面形成遮光区P,以遮挡影像光束頂中预定遮蔽部分(例如图4B中暂态下形成于透镜22a-22e的边缘区域的光斑),进而达到遮蔽杂散光的效果。 Please refer to FIG. 3, 4A, 4B, and 5, it is assumed in the bright state the spot is formed in the central region 22a-22e of the lens and the brightness to the peripheral edge decreasing, and assuming that transient lower spots are typically formed in the lens 22a_22e of the edge region, at least one portion of the surface of the lens used for example 22a-22e of the present embodiment is formed a light shielding region P, to block top image beam predetermined shielding portion (for example, in FIG. 4B transient 22a-22e formed at the edge of the lens spot region), thereby achieving the effect of shielding stray light. 换句话说,如图5所示,假设非亮态(例如暂态或暗态)下光斑形成于透镜22a_22e的边缘区域,则遮光区P可形成于透镜22a_22e的至少其中之一的边缘区域以遮挡杂散光。 In other words the edge region, as shown in FIG 5 assume the non-bright state (e.g. transient or dark state) in the edge region of the light spot formed 22a_22e lens, the light-shielding region P may be formed on at least one of the lens 22a_22e wherein blocking stray light. 然而,图3中形成于透镜22c的遮光区P为用以方便说明的其中一个实施例,并非限制本发明的遮光区的位置与数量,遮光区P的位置主要位于影像光束IM中的预定遮蔽部分的传递路径上,故遮光区P的分布位置、外形及面积可视设计需求而定,因而本发明并不限于此,例如遮光区P可为非带状的多个区块。 However, in FIG. 3 is formed in the light shielding region P of the lens 22c for the convenience of description to one embodiment, the present invention is not restricted to the light shielding region and the number of positions, the light shielding region P located at a predetermined position of the main image beam of the shielding IM portion of the transmission path, so that the distribution of the position P of the light blocking region, the area of ​​the visual appearance and design needs, and thus the present invention is not limited to this example may be non-light-shielding region P of the plurality of strip-like blocks.

[0052] 除此之外,本实施例还可针对投影装置10中所产生的绕射光线进行遮蔽,如图6示意性示出于数字微镜装置14a中形成的绕射光斑26,于一实施例中,可于透镜22a-22e的至少其中之一形成如图7所示的遮光区Q来进行遮蔽,以避免形成绕射光斑俾进一步提高对比度。 [0052] In addition, the present embodiment may also be shielded against the diffracted light generated by the projector 10, the diffraction spot 266 is shown schematically a digital micromirror device in FIG. 14a formed at a embodiment, may be formed in the light shielding region Q shown in FIG. 7 to at least one of the lenses 22a-22e wherein the masking is performed, to avoid the formation of the diffraction spot serve to further improve contrast. 当然,本发明亦不限定遮光区Q的分布位置、外形及面积。 Of course, the present invention does not limit the position of the light shielding region Q distribution, shape and size.

[0053] 于上述各个实施例中,遮光区P、Q例如直接形成于透镜表面,而透过遮光区P、Q直接形成于透镜的方式,预定遮蔽部分的位置可被精准定位,进而解决传统上利用遮挡构件来遮蔽光线所产生的遮挡构件与透镜之间的位置对准误差问题。 [0053] in each of the above embodiments, the light shielding region P, Q directly formed on the lens surface, for example, and through the light-shielding region P, Q formed in the direct mode of the lens, the position of the predetermined portion of the shield can be accurately positioned, thereby solving the conventional between the shielding position to the shielding member and the light produced by the lens alignment error problem by using the shutter member. 此外,形成遮光区P、Q的方式并不受限制,例如可使用转印、涂墨等方式直接于透镜22a_22e的其中之一的部分表面形成遮光区块,或者贴附遮光片于透镜22a_22e的其中之一上以形成遮光区亦可。 In addition, a light shielding region P, Q and unrestricted way, for example, a transfer, and the like directly to the inked portion of the surface of one of the light shielding block is formed 22a_22e lens, or the light shielding sheet is attached to the lens of 22a_22e wherein one of the light-shielding region can be formed to. 再者,于一实施例中,遮光区P、Q可形成于透镜群22中邻近孔径光栏24的透镜22c或/及透镜22d上,但本发明并不限于此,例如遮光区P、Q也可形成于较远离孔径光栏24的透镜22a、22b及22e的至少其中之一。 Further, in one embodiment, the light shielding region P, Q may be formed on the lens 22 adjacent to the aperture diaphragm 24 or 22c / 22d lens group and the lens, but the present invention is not limited thereto, for example a light-shielding region P, Q may be formed on at least one of the lens farther from the aperture diaphragm 24 is 22a, 22b and 22e therein. 另外,以数字微镜装置14a作为影像产生单元14为例,于数字微镜装置14a的亮状态下,遮光区P、Q的面积可设计为使光线通过透镜群22时因遮光区P、Q所造成的光强度损失小于30%较佳。 Further, a digital micromirror device 14a the image generating unit 14 as an example, in the bright state of the digital micromirror device 14a, the light-shielding region P, Q may be designed such that the area of ​​the light through the lens group 22:00 by shading area P, Q loss of light intensity caused by less than 30% is preferred.

[0054]图8为本发明一实施例的取像装置示意图。 [0054] FIG. 8 a schematic image capturing device according to an embodiment of the present invention. 如图8所示,取像装置30包含镜头模块20与感光单元32,镜头模块20接收来自欲取像的标的物的影像光束IP并形成影像光束IF0感光单元32例如可为电荷親合元件(Charge-Coupled Device,CO))、互补式金氧半导体(Complementary Metal Oxide Semiconductor,CMOS)等光感测元件,用以感光而将光转换为数字信号。 As shown, take 32, lens module 20 receives the image beam from the target IP as the intention of seizing means 30 of the image 8 comprising the lens module 20 and the photosensitive element and the image beam formed IF0 photosensitive unit 32 may be, for example, a charge affinity element ( Charge-Coupled device, CO)), complementary metal oxide semiconductor (complementary metal oxide semiconductor, CMOS) and other light-sensing element for converting light into the photosensitive digital signals. 于本实施例中,取像装置30的镜头模块20可依据图3的实施例来加以实施,其实施细节在此不多赘述,如此一来,当镜头模块202的遮光区位于影像光束IP中预定遮蔽部分的传递路径上时,可获得不具杂散光的影像光束IF,以提高取像装置30的取像对比度的效果。 In the present embodiment, the imaging device 20 of the lens module 30 may be implemented according to the embodiment of FIG. 3, the details of its implementation in this little to say, this way, when the lens module 202 located in the light shielding region in the image beam IP when the predetermined transmission path shielding portion, having obtained the image beam IF no stray light, in order to take the effect of improving image contrast imaging apparatus 30.

[0055] 综上所述,在本发明的上述实施例中,藉由镜头模块的透镜群中至少其中之一透镜的部分表面所形成的至少一遮光区,影像光束中的预定遮蔽部分可被有效地遮挡,进而使应用此镜头模块的投影装置的投影品质或取像装置的取像品质获得提升。 [0055] In summary, in the above-described embodiments of the present invention, at least one light-shielding area by the lens group in the lens module wherein at least one portion of the surface of the lens to be formed, a predetermined portion of the image beam shielding may be effectively blocked, and thus the quality of the projection of the projection apparatus or application of this imaging lens module quality imaging apparatus promoted. 此外,藉由上述各个实施例的设计,因为遮光区可直接形成于镜头模块的至少一透镜表面上,故不需已知设计额外设置的遮光机构件,如此不仅可减少整体的构件数量、成本且可提高设计自由度。 Further on at least one surface of the lens, with various design embodiments described above, since the light shielding region may be formed directly on the lens module, it is designed without additional known light blocking member disposed mechanism, so not only can reduce the overall number of components, cost and greater design freedom.

[0056] 但以上所述仅为本发明的较佳实施例而已,不能以此限定本发明实施的范围,SP凡依本发明权利要求及发明说明内容所作的简单的等效变化与修饰,皆仍属本发明专利涵盖的范围内。 [0056] However, the above are merely preferred embodiments of the present invention only, not limiting the scope of this embodiment of the present invention, SP where claimed under this invention and the invention described in claim simple modifications and equivalent content made, are still within the scope of the present invention is covered by the patent. 另外本发明的任一实施例或权利要求不须达成本发明所揭露的全部目的或优点或特点。 Further according to any one embodiment or the present invention as claimed in claim embodiments not intended to be exhaustive or advantages or features disclosed by the present invention. 此外,摘要部分和标题仅是用来辅助专利文件搜寻之用,并非用来限制本发明的权利范围。 Further, the abstract and the headings are merely used to aid in searches of patent files, and is not intended to limit the scope of the present invention. 此外,本说明书或申请专利范围中提及的“第一”、“第二”等用语仅用以命名元件的名称,而并非用来限制元件数量上的上限或下限。 Moreover, the scope of the present patent specification, or the reference to "first," "second," etc. merely to name the name of the element, while not intended to limit the upper or lower limit on the number of elements.

Claims (19)

  1. 1.一种投影装置,包含: 影像产生单元,用以提供影像光束,所述影像光束具有预定遮蔽部分;以及镜头模块,设置于所述影像光束的传递路径上,所述镜头模块包含透镜群,所述透镜群设置于物侧与像侧之间,所述透镜群包含多个透镜,其中所述透镜的至少其中之一的有效直径内的部分表面形成至少一遮光区,且所述遮光区位于所述预定遮蔽部分的传递路径上。 1. A projection apparatus, comprising: image generating means for providing image beam, the image beam having a predetermined shielding portion; and a lens module disposed on a transmission path of said image beam, a lens module comprising lens group the lens group on the object side and disposed between the image side, the lens group comprises a plurality of lenses, the effective diameter of the inner surface portions of at least one of said lens wherein the at least one light blocking region is formed, and the light-shielding the predetermined region is located on a transmission path shielding portion.
  2. 2.如权利要求1所述的投影装置,其特征在于,所述预定遮蔽部分包括所述影像产生单元所形成的绕射光线。 2. The projection apparatus according to claim 1, wherein said predetermined diffraction light shielding portion comprises the image generating unit is formed.
  3. 3.如权利要求1所述的投影装置,其特征在于,所述遮光区直接形成于所述透镜的至少其中之一的部分表面。 The projection apparatus according to claim 1, wherein said light shielding region is formed directly on at least one part of the surface of the lens therein.
  4. 4.如权利要求1所述的投影装置,其特征在于,所述遮光区包含形成于透镜的部分表面的转印区块、涂墨区块及贴附于透镜的部分表面的遮光片的至少其中之一。 The projection apparatus according to claim 1, wherein said light shielding region comprises a transfer block portion of the surface of the lens is formed, at least inking block and affixed to the lens portion of the surface of the light shielding sheet one of them.
  5. 5.如权利要求1所述的投影装置,其特征在于,所述遮光区形成于所述透镜的至少一边缘区域。 5. The projection apparatus according to claim 1, wherein said lens is formed in the light shielding region of at least one edge region.
  6. 6.如权利要求1所述的投影装置,其特征在于,所述镜头模块还包含: 孔径光栏,设置于所述物侧与所述像侧之间,其中所述遮光区形成于所述透镜中邻近所述孔径光栏的透镜。 6. The projection apparatus according to claim 1, wherein said lens module further comprises: an aperture diaphragm disposed between the object side and the image side, wherein the light shielding region is formed in said lens near the lens aperture diaphragm.
  7. 7.如权利要求1所述的投影装置,其特征在于,还包含照明单元,所述照明单元用以提供照明光束,所述影像产生单元为光阀,所述光阀设置于所述照明光束的传递路径上,以将所述照明光束转换为所述影像光束。 The projection apparatus according to claim 1, characterized by further comprising lighting units, the lighting unit for providing illumination beam, the image generation unit is a light valve, the light valve is disposed in the illumination beam on the transmission path to the illumination beam into the image beam.
  8. 8.如权利要求1所述的投影装置,其特征在于,所述影像产生单元为数字微镜装置,当所述数字微镜装置处于亮状态时,所述影像光束通过所述透镜群所造成的光强度损失小于30%。 8. The projection apparatus according to claim 1, wherein said image generating unit is a digital micromirror device when said digital micromirror device in a bright state, the image beam caused by the lens group of less than 30% loss of light intensity.
  9. 9.一种镜头模块,包含: 透镜群,设置于物侧与像侧之间,用以接收影像光束,所述影像光束具有预定遮蔽部分,且所述透镜群包含多个透镜,所述透镜的至少其中之一的有效直径内的部分表面形成有至少一遮光区,且所述遮光区位于所述预定遮蔽部分的传递路径上。 A lens module comprising: a lens group disposed between the object side and the image side, for receiving the image beam, the image beam having a predetermined shielding portion, and the plurality of lens group comprises a lens the part of the surface within the effective diameter of at least one of which is formed with at least one light-shielding area, and the light shielding region is located on the transmission path of the predetermined portion of the shield.
  10. 10.如权利要求9所述的镜头模块,其特征在于,所述遮光区直接形成于所述透镜的至少其中之一的部分表面。 10. The lens module according to claim 9, wherein the light shielding region is formed directly on at least one part of the surface of the lens therein.
  11. 11.如权利要求9所述的镜头模块,其特征在于,所述遮光区包含形成于所述透镜的部分表面的转印区块、涂墨区块及贴附于所述透镜的部分表面的遮光片的至少其中之一。 11. The lens module according to claim 9, wherein said light shielding region comprises a transfer block portion formed in the surface of the lens, and the inked block affixed to a surface portion of the lens at least one light-shielding sheet.
  12. 12.如权利要求9所述的镜头模块,其特征在于,所述遮光区形成于所述透镜的至少一边缘区域。 12. The lens module according to claim 9, wherein said lens is formed in the light shielding region of at least one edge region.
  13. 13.如权利要求9所述的镜头模块,其特征在于,还包含: 孔径光栏,设置于所述物侧与所述像侧之间,其中所述遮光区形成于所述透镜中邻近所述孔径光栏的透镜。 13. The lens module according to claim 9, characterized in that, further comprising: an aperture diaphragm disposed on the object side and the image side between, wherein the light shielding region is formed in the lens adjacent to the aperture diaphragm of said lens.
  14. 14.一种取像装置,包含: 感光单元,用以接收影像光束,所述影像光束具有预定遮蔽部分;以及镜头模块,设置于所述影像光束的传递路径上,且所述镜头模块包含透镜群,所述透镜群设置于物侧与像侧之间,所述透镜群包含多个透镜,其中所述透镜的有效直径内的至少其中之一的部分表面形成有至少一遮光区,且所述遮光区位于所述预定遮蔽部分的传递路径上。 14. An imaging apparatus, comprising: a photosensitive unit for receiving image beam, the image beam having a predetermined shielding portion; and a lens module disposed on a transmission path of said image beam and said camera module comprises a lens group, a lens group disposed between the object side and the image side, the lens group comprises a plurality of lenses, wherein at least one portion of the surface within the effective diameter of the lens is formed with at least one light-shielding area, and the said light blocking area is located on the transmission path of the predetermined portion of the shield.
  15. 15.如权利要求14所述的取像装置,其特征在于,所述感光单元为电荷耦合元件及互补式金氧半导体的至少其中之一。 15. The imaging apparatus according to claim 14, wherein said at least one photosensitive unit is a charge coupled device and a complementary metal oxide semiconductor therein.
  16. 16.如权利要求14所述的取像装置,其特征在于,所述遮光区直接形成于所述透镜的至少其中之一的部分表面。 16. The imaging apparatus according to claim 14, wherein said light shielding portion of the surface region is formed directly in at least one of the lens.
  17. 17.如权利要求14所述的取像装置,其特征在于,所述遮光区包含形成于所述透镜的部分表面的转印区块、涂墨区块及贴附于所述透镜的部分表面的遮光片的至少其中之一。 17. The imaging apparatus according to claim 14, wherein said light shielding region comprises a transfer block portion formed in the surface of the lens, and the inked block affixed to a surface portion of the lens at least one of the light-shielding sheet.
  18. 18.如权利要求14所述的取像装置,其特征在于,所述遮光区形成于所述透镜的至少一边缘区域。 18. The imaging apparatus according to claim 14, wherein said lens is formed in the light shielding region of at least one edge region.
  19. 19.如权利要求14所述的取像装置,其特征在于,还包含: 孔径光栏,设置于所述物侧与所述像侧之间,其中所述遮光区形成于所述透镜中邻近所述孔径光栏的透镜。 19. The imaging apparatus according to claim 14, characterized in that, further comprising: an aperture diaphragm disposed on the object side and the image side between, wherein the light shielding region formed adjacent to the lens the aperture diaphragm of the lens.
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CN1760716A (en) * 2004-10-15 2006-04-19 精工爱普生株式会社 Image display device and projector
CN201348671Y (en) * 2008-07-04 2009-11-18 富士能株式会社 Camera lens and camera device using camera lens
CN102402008A (en) * 2010-09-10 2012-04-04 立景光电股份有限公司 Optical system and projector

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