CN109459905A - 一种新型lcd投影机 - Google Patents

一种新型lcd投影机 Download PDF

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CN109459905A
CN109459905A CN201811615431.3A CN201811615431A CN109459905A CN 109459905 A CN109459905 A CN 109459905A CN 201811615431 A CN201811615431 A CN 201811615431A CN 109459905 A CN109459905 A CN 109459905A
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light
lcd projector
mirror
light source
polarizing film
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徐逸
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
    • G02F1/133385—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell with cooling means, e.g. fans
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/13362—Illuminating devices providing polarized light, e.g. by converting a polarisation component into another one
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/005—Projectors using an electronic spatial light modulator but not peculiar thereto
    • G03B21/006—Projectors using an electronic spatial light modulator but not peculiar thereto using LCD's
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/145—Housing details, e.g. position adjustments thereof
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/16—Cooling; Preventing overheating
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2033—LED or laser light sources
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2073—Polarisers in the lamp house
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/58—Optical field-shaping elements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/20136—Forced ventilation, e.g. by fans
    • H05K7/20154—Heat dissipaters coupled to components
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/202—Air circulating in closed loop within enclosure wherein heat is removed through heat-exchangers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133628—Illuminating devices with cooling means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
    • H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
    • H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
    • H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
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Abstract

本发明公开了一种新型LCD投影机，包括一个LCD投影机的带密封壳体的成像***，带PCS功能和涂有透明防污涂层的照明***以及LED光源***，所述密封壳体内设置有镜头组件、光学组件以及第一散热组件。本发明在密封的壳体内，在液晶屏的出风口安装散热组件，同时，因为是在密封的壳体内，这样可以使光学器件在一个无尘的环境，能将传统投影仪对成像没用的P光转换成有用的S光，提高了光的利用率，使LCD投影机在相同功率下的亮度大幅度提高，照明部分还涂有透明防污涂层，可以减少吸附灰尘，进一步提高了***的清洁度，LED照明部分使用微透镜对LED光源进行汇聚，提高了光效和光的均匀度。

Description

一种新型LCD投影机
技术领域
本发明涉及一种投影机，特别涉及一种新型LCD投影机。
背景技术
LCD投影机是一种利用光学元件将LCD显示屏放大,并将其投影到影屏上的光学仪器。广泛应用于大尺寸显示领域。
LCD投影机在使用时，光学器件会产生大量的热，这些热严重影响LCD投影机的使用寿命以及使用稳定性，因此LCD 投影机在使用时需要用风扇从外部吹入空气冷却，这导致在使用一段时间后***内部易出现脏点、黑点的问题，影响显示效果，并且传统投影仪的光源发出的光含有P光和S光两种偏振光，但LCD投影机只能利用其中的一种偏振光，而且照明***简单，整体光效不高，造成现有投影仪功率高，亮度低。
发明内容
本发明所要解决的技术问题是提供一种新型LCD投影机，采用一个封闭的内循环散热***，带PCS功能和涂有透明防污涂层的照明***以及带微透镜阵列的LED光源，能够有效解决现有技术中的诸多不足。
本发明是通过以下技术方案来实现的：一种新型LCD投影机，包括一个LCD投影机的带密封壳体的成像***，带PCS功能和涂有透明防污涂层的照明***以及LED光源***，所述密封壳体内设置有镜头组件、光学组件以及第一散热组件；所述LED光源***包括用树脂成型的微透镜阵列、LED芯片阵列、第二散热器组件以及第二风扇。
作为优选的技术方案，所述密封壳体成像***包括一个底壳、面壳一，壳体内安装有第一风扇、第一散热器组件的吸热端、第一反光镜、第二菲镜、液晶屏、反射式偏光膜，第一散热器组件的吸热端安装于液晶屏出风口一侧，壳体的外部设置第一散热器组件的散热端、照明组件和光源组件，第一散热器组件的散热端安装于第二风扇进风口一侧。
作为优选的技术方案，所述光学组件和照明组件包括第一反光镜、第二菲镜、反射式偏光膜、液晶屏、第一菲镜以及带1/4波片的第二反光镜、镜头组件，液晶屏、第二菲镜、第一反光镜、镜头组件依次安装于反射式偏光膜的一侧，第一反光镜倾斜设置于反射式偏光膜一侧，第一反光镜的反光面正对着镜头组件设置，第二菲镜、光源组件以及带1/4波片的第二反光镜设置于反射式偏光膜另一侧，光源组件和带1/4波片的第二反光镜并列排列。
作为优选的技术方案，所述密封壳体包括底壳以及面壳一，面壳一顶部贴装一块金属片。
作为优选的技术方案，所述微透镜阵列采用树脂成型。
作为优选的技术方案，所述第一散热器的散热端和第二散热器共用风道和第二风扇。
作为优选的技术方案，所述反射式偏光膜是密封壳体的一部分，且不平行于液晶屏，反射式偏光膜和液晶屏之间形成一个小的夹角。
作为优选的技术方案，在反射式偏光膜和第一菲镜上涂上透明防污涂层。
作为优选的技术方案，带1/4波片的第二反光镜为平面反光镜，或者曲面反光镜。
作为优选的技术方案，光源组件包括带微透镜的LED阵列以及第二散热器和第二风扇，光源发出的发散光线，通过微透镜后照射在第一菲镜，经第一菲镜变成平行光后照射在反射式偏光膜上，S光透过，P光反射，反射的P光经第一菲镜汇聚在带1/4波片的第二反光镜上。
作为优选的技术方案，光源组件的LED阵列的每一个LED芯片都带一个微透镜，微透镜为自由曲面透镜，把LED芯片发出的光汇聚成液晶屏形状和大小的均匀光斑。
本发明的有益效果是：一、 本发明在密封的壳体内，这样可以使光学器件在一个无尘的环境，这解决了传统LCD投影仪机在使用一段时间后易出现脏点、黑点的问题；同时，把反射式偏光膜作为密封壳体的一部分，把大量的热留在了壳体外面，减少了密封壳体的散热量。同时，反射式偏光膜和第一菲镜涂有透明防污涂层，可以减少灰尘的吸附，提高***的清洁程度，把第一散热片设置于液晶屏出风口，有利于提高散热效率。
二、将对传统LCD投影机成像没用的P光转换成有用的S光，提高了光的利用率，使投影在相同功率下的亮度大大提高；
三、微透镜和LED芯片一一对应，可以提高LED光源的利用效率和照明的均匀度。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明的整体结构示意图；
图2是本发明的整体***图；
图3是本发明的整体光学示意图；
图4是本发明的照明组件偏振光转换结构示意图；
图5是光源组件结构原理图；
图6是光源组件的光学原理图；
附图标记：
1.底壳 2.反光镜 3.风扇一 4.面壳一 5.铝板 6.面壳二 7.第二散热器组件 8.带1/4波片第二反光镜 9.光源组件 10.风扇二 11.第一散热器组件 12.第一菲镜 13.反射式偏光膜 14.液晶屏 15.第二菲镜 16.镜头组件 17.幕布 18.基板 19.微透镜 20.LED芯片。
具体实施方式
本说明书中公开的所有特征，或公开的所有方法或过程中的步骤，除了互相排斥的特征和/或步骤以外，均可以以任何方式组合。
本说明书（包括任何附加权利要求、摘要和附图）中公开的任一特征，除非特别叙述，均可被其他等效或具有类似目的的替代特征加以替换。即，除非特别叙述，每个特征只是一系列等效或类似特征中的一个例子而已。
如图1、图2所示，包括一个LCD投影机的带密封壳体的成像***，带PCS功能和涂有透明防污涂层的照明***以及带微透镜阵列的LED光源***，所述密封壳体内设置有镜头组件以及第一散热组件11，所述照明***包括带PCS功能和涂有透明防污涂层的照明组件；所述光源***包括用树脂成型的微透镜阵列1、LED芯片阵列20、第二散热器组件7、第二风扇10。
其中，密封壳体成像***包括一个密封底壳1、密封面壳一4，面壳一4上安装有一块铝片5，壳体内安装有第一风扇3、第一散热器组件11的吸热端、第一反光镜2、第二菲镜15、液晶屏14、反射式偏光膜13。第一散热器组件11的吸热端安装于液晶屏14出风口一侧。壳体的外部设置第一散热器组件11的散热端、照明组件和光源组件8，第一散热器组件11的散热端安装于第二风扇10进风口一侧。
其中，光学组件包括第一反光镜2、第二菲镜12、反射式偏光膜13、液晶屏14、第一菲镜15以及带1/4波片第二反光镜9，8、镜头组件16、液晶屏14、第二菲镜15，第一反光镜2，镜头组件16依次安装于的反射式偏光膜13一侧，第一菲镜12、光源组件9，带1/4波片第二反光镜8设置于反射式偏光膜13另一侧，光源组件9和带1/4波片第二反光镜9,是并列排列；第一反光镜2倾斜设置于反射式偏光膜13一侧，第一反光镜2的反光面正对着镜头组件16设置。
本实施例中，反射式偏光膜13作为密封壳体的一部分。反射式偏光膜13不平行于液晶屏14，和液晶屏14有一个小的夹角。第一散热器11的散热端和第二散热7器共用风道和第二风扇10。
本实施例中，带1/4波片第二反光镜8可以是平面反光镜，也可以是曲面反光镜。
如图4所示，照明组件包括反射式偏光13，第一菲镜12，带1/4波片第二反光镜8，光源组件9包括带微透镜的LED阵列，以及第二散热器7和第二风扇10，光源发出的发散光线，通过微透镜19后照射在第一菲镜12，经第一菲镜12变成平行光后照射在反射式偏光膜13上，S光透过，P光反射，反射的P光经第一菲镜12汇聚在带1/4波片的第二反光镜9上，因1/4波片具有把P光转换成S光功能，因此再反射到反射式偏光膜13的均为S光，均可以透过反射式偏光膜13，照射到液晶屏14上面。该过程同样适合把LED发出P光和S光混合光变成了单纯的P光。
如图5和图6所示，光源组件的LED阵列的每一个LED芯片20都带一个微透镜18，微透镜18为自由曲面透镜，可以把该LED芯片20发出的光汇聚成液晶屏14形状和大小的均匀光斑。每一个微透镜18都能把对应的LED芯片20发出光线按照预期的大小，形状和均匀度准确的投射到后菲镜12上面，因为每一颗LED芯片20的位置都是不一样的，所有以每一个LED微透镜18形状和角度都是不一样的。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何不经过创造性劳动想到的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应该以权利要求书所限定的保护范围为准。

Claims (11)

1.一种新型LCD投影机，其特征在于：包括一个LCD投影机的带密封壳体的成像***，带PCS功能和涂有透明防污涂层的照明***以及LED光源***，所述密封壳体内设置有镜头组件、光学组件以及第一散热组件；所述LED光源***包括用树脂成型的微透镜阵列、LED芯片阵列、第二散热器组件以及第二风扇。
2.如权利要求1所述的新型LCD投影机，其特征在于：所述密封壳体成像***包括一个底壳、面壳一，壳体内安装有第一风扇、第一散热器组件的吸热端、第一反光镜、第二菲镜、液晶屏、反射式偏光膜，第一散热器组件的吸热端安装于液晶屏出风口一侧，壳体的外部设置第一散热器组件的散热端、照明组件和光源组件，第一散热器组件的散热端安装于第二风扇进风口一侧。
3.如权利要求1所述的新型LCD投影机，其特征在于：所述光学组件和照明组件包括第一反光镜、第二菲镜、反射式偏光膜、液晶屏、第一菲镜以及带1/4波片的第二反光镜、镜头组件，液晶屏、第二菲镜、第一反光镜、镜头组件依次安装于反射式偏光膜的一侧，第一反光镜倾斜设置于反射式偏光膜一侧，第一反光镜的反光面正对着镜头组件设置，第二菲镜、光源组件以及带1/4波片的第二反光镜设置于反射式偏光膜另一侧，光源组件和带1/4波片的第二反光镜并列排列。
4.如权利要求1所述的新型LCD投影机，其特征在于：所述密封壳体包括底壳以及面壳一，面壳一顶部贴装一块金属片。
5.如权利要求1所述的新型LCD投影机，其特征在于：所述微透镜阵列采用树脂成型。
6.如权利要求1所述的新型LCD投影机，其特征在于：所述第一散热器的散热端和第二散热器共用风道和第二风扇。
7.如权利要求1所述的新型LCD投影机，其特征在于：所述反射式偏光膜是密封壳体的一部分，且不平行于液晶屏，反射式偏光膜和液晶屏之间形成一个小的夹角。
8.如权利要求1所述的新型LCD投影机，其特征在于：在反射式偏光膜和第一菲镜上涂上透明防污涂层。
9.如权利要求1所述的新型LCD投影机，其特征在于：带1/4波片的第二反光镜为平面反光镜，或者曲面反光镜。
10.如权利要求2所述的新型LCD投影机，其特征在于：光源组件包括带微透镜的LED阵列以及第二散热器和第二风扇，光源发出的发散光线，通过微透镜后照射在第一菲镜，经第一菲镜变成平行光后照射在反射式偏光膜上，S光透过，P光反射，反射的P光经第一菲镜汇聚在带1/4波片的第二反光镜上。
11.如权利要求10所述的新型LCD投影机，其特征在于：光源组件的LED阵列的每一个LED芯片都带一个微透镜，微透镜为自由曲面透镜，把LED芯片发出的光汇聚成液晶屏形状和大小的均匀光斑。
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WO2023004906A1 (zh) * 2021-07-26 2023-02-02 深圳市远古科技有限公司 具有循环散热装置的投影仪

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