公开(公告)号：KR100410964B1

公开(公告)日：2003-12-18

申请号：KR1020010045373

申请日：2001-07-27

Applicant: 삼성전기주식회사

Inventor： 김동하 ,  박종명

IPC: G02B15/16

CPC classification number: G02B13/22 ,  G02B13/06

Abstract: Disclosed is a projection lens of a projection display apparatus including a first lens group arranged upstream from a screen, the first lens group having a negative power and including at least one aspherical lens element and at least three spherical lens elements, the lens element of the first lens group spaced away from the screen by a maximum distance having a positive power, a second lens group arranged upstream from the first lens group, the second lens group having a positive power and including a triple cemented lens composed of three lens elements cemented together, and at least one lens element arranged at one side of the triple cemented lens opposite to the screen, and an aperture stop arranged between the first and second lens groups.

Abstract translation: 公开了一种投影显示设备的投影透镜，其包括布置在屏幕上游的第一透镜组，第一透镜组具有负光焦度并且包括至少一个非球面透镜元件和至少三个球面透镜元件，透镜元件 第一透镜组，与屏幕隔开具有正屈光力的最大距离;第二透镜组，设置在第一透镜组的上游，第二透镜组具有正屈光力，并且包括由三个透镜元件粘合在一起构成的三重粘合透镜 以及至少一个布置在三重胶合透镜的与屏幕相对一侧的透镜元件以及布置在第一和第二透镜组之间的孔径光阑。

公开(公告)号：KR1020020051333A

公开(公告)日：2002-06-29

申请号：KR1020000080127

申请日：2000-12-22

Applicant: 삼성전기주식회사

Inventor： 전광조 ,  김동하

IPC: G03B21/20

CPC classification number: G03B21/2066 ,  G03B21/2026 ,  G03B21/208 ,  H04N9/315

Abstract: PURPOSE: A reflector mirror structure is provided to reduce etendue of light source and achieve improved light collection efficiency by arranging a retro reflector to an elliptical mirror. CONSTITUTION: A reflector mirror structure to be used in a projection engine, is characterized in that an elliptical mirror is installed such that a light source is located at a first focus, and a retro reflector is additionally arranged to the shaft of the elliptical mirror, so as to thereby improve light collection efficiency and reduce etendue of light source. The retro reflector is disposed in front of the light source so as to efficiently collect the light generated from the light source, and made of a semi-spherical mirror. Since the center of the retro reflector corresponds to the center of the light source, all the light colliding against the semi-spherical mirror returns to the light source.

Abstract translation: 目的：提供反射镜结构，以减少光源的光散射，并通过将后向反射器布置在椭圆镜上，实现提高的光采集效率。 构成：在投影引擎中使用的反射镜结构，其特征在于，安装椭圆镜使得光源位于第一焦点，并且将后向反射器附加地布置在椭圆镜的轴上， 从而提高光收集效率并降低光源的光通量。 回光反射器设置在光源的前面，以便有效地收集由光源产生的光，并由半球形镜制成。 由于反光镜的中心对应于光源的中心，所以与半球面镜相撞的所有光都返回到光源。

公开(公告)号：KR1020040003662A

公开(公告)日：2004-01-13

申请号：KR1020020038416

申请日：2002-07-03

Applicant: 삼성전기주식회사

Inventor： 이종서 ,  김동하 ,  백승욱 ,  전광조 ,  조용주 ,  박종명 ,  최학림

IPC: H04N5/74

Abstract: PURPOSE: A polarization compensating panel in a projection system is provided to prevent the efficiency of polarization compensation from being deteriorated due to thermal stress. CONSTITUTION: A projection system includes a polarized beam splitter and an imager for loading an image on lights transmitted from the polarized beam splitter and reflecting the lights. A polarization compensating panel in the projection system is located between the polarized beam splitter and the imager and includes a plastic plate(QWP) and a polarization compensating panel. The plastic plate is made of polymers having birefringence such as poly carbonate and stretches the polymers to arrange molecules in one direction. The polarization compensating panel is composed of a glass plate(101) attached to both sides of the plastic plate using an optical bond(102) having a coefficient of thermal expansion smaller than that of the material of the plastic plate.

Abstract translation: 目的：提供投影系统中的偏振补偿面板，以防止极化补偿的效率由于热应力而劣化。 构成：投影系统包括偏振分束器和用于将图像载入从偏振分束器传输的光并反射光的成像器。 投影系统中的偏振补偿面板位于偏振分束器和成像器之间，并且包括塑料板（QWP）和偏振补偿面板。 塑料板由具有双折射的聚合物制成，例如聚碳酸酯，并且使聚合物拉伸以在一个方向上排列分子。 偏振补偿面板由玻璃板（101）构成，该玻璃板（101）使用具有小于塑料板的材料的热膨胀系数的光学结合（102）而附着在塑料板的两侧。

公开(公告)号：KR1020020016423A

公开(公告)日：2002-03-04

申请号：KR1020000049726

申请日：2000-08-25

Applicant: 삼성전기주식회사

Inventor： 최학림 ,  백승욱 ,  김동하

IPC: H04N5/74

Abstract: PURPOSE: A 3-plate type projection system is provided to reduce color spread on a screen to improve the performance of a projection engine. CONSTITUTION: A 3-plate type projection system includes an illumination system(10), a projection system(20), a polarizing beam splitter(30), a dichroic(50), and a dummy block. The illumination system emits a beam. The projection system projects a mixed image on a screen. The polarizing beam splitter has a filter arranged at the angle of 51 degrees, separates the G component from the beam emitted from the illumination system and sends the G component to an LCD(40) and reflects R and B components. The dichronic separates the reflected R and B components from each other and transmits the separated R and B components to corresponding LCDs(70,60), respectively. The dummy block is placed at the incident side of the G component LCD to allow the polarizing beam splitter to mix images.

Abstract translation: 目的：提供3板式投影系统，以减少屏幕上的色彩传播，从而提高投影机的性能。 构成：3板式投影系统包括照明系统（10），投影系统（20），偏振分束器（30），二向色（50）和虚拟块。 照明系统发射光束。 投影系统在屏幕上投射混合图像。 偏振光束分离器具有以51度的角度布置的滤光器，将G分量与从照明系统发射的光束分离，并将G分量发送到LCD（40）并反射R和B分量。 将反射的R和B分量彼此分离并将分离的R和B分量分别传输到相应的LCD（70,60）。 虚拟块放置在G组件LCD的入射侧，以允许偏振分束器混合图像。

公开(公告)号：KR1020030010810A

公开(公告)日：2003-02-06

申请号：KR1020010045373

申请日：2001-07-27

Applicant: 삼성전기주식회사

Inventor： 김동하 ,  박종명

IPC: G02B15/16

CPC classification number: G02B13/22 ,  G02B13/06

Abstract: PURPOSE: A projection lens of a projection display device is provided to satisfy a performance condition necessary in a projection system of a large screen, a minimal thickness, and high quality. CONSTITUTION: The first lens group(G1) has a negative power which starts from a screen direction of a projection display device. The second lens group(G2) has a positive power. An Aperture Stop is located between the first lens group(G1) and the second lens group(G2). The first lens group(G1) includes at least one aspheric lens element and at least three spherical lens elements. The second lens group(G2) includes a triplet lens which is formed by a combination of three lens elements. The triplet lens of the second lens group(G2) has a positive optical power. A center lens of the triplet lens of the second lens group(G2) has a negative optical power and external two lenses thereof have a positive optical power.

Abstract translation: 目的：提供投影显示装置的投影透镜，以满足大屏幕投影系统，最小厚度和高质量所需的性能条件。 构成：第一透镜组（G1）具有从投影显示装置的屏幕方向开始的负电源。 第二透镜组（G2）具有正功率。 光圈停止位于第一透镜组（G1）和第二透镜组（G2）之间。 第一透镜组（G1）包括至少一个非球面透镜元件和至少三个球面透镜元件。 第二透镜组（G2）包括由三个透镜元件的组合形成的三重透镜。 第二透镜组（G2）的三重透镜具有正光焦度。 第二透镜组（G2）的三重透镜的中心透镜具有负光焦度，并且其外部两个透镜具有正光焦度。

公开(公告)号：KR1020030006089A

公开(公告)日：2003-01-23

申请号：KR1020010041649

申请日：2001-07-11

Applicant: 삼성전기주식회사

Inventor： 이종서 ,  김동하 ,  문용식 ,  전광조 ,  박종명 ,  최학림

IPC: G03B21/00

CPC classification number: H04N9/3105 ,  G02B27/283 ,  H04N9/3167

Abstract: PURPOSE: A projection display apparatus is provided to obtain projection display apparatus with a compact size by reducing the number of optical elements, while ensuring stabilized brightness uniformity. CONSTITUTION: A projection display apparatus comprises an illuminating unit including a lamp(11) and a polarizer for illuminating polarizing light of S or P-wave; a color separation/synthesizing system including a reflective LCD for changing the polarizing state during reflection of the incident light, a retarder stack for varying the polarizing state of the specific light from among the incident light and a polarizing beam splitter serving as a color separator and synthesizer of the incident light, wherein the polarizing beam splitter is made of a material having a photo elasticity of 0.03 x 10-6mm¬2/N or lower in the wavelength of 589.3nm and a minimum transmittance of 90 percents or higher at the thickness of 25mm in the wavelength of 0.42 micron meter to 0.70 micron meter; and a projection system(16) for projecting the image passed through the color separation/synthesizing system, onto a screen.

Abstract translation: 目的：提供投影显示装置，通过减少光学元件的数量，同时确保稳定的亮度均匀性来获得具有紧凑尺寸的投影显示装置。 一种投影显示装置，包括：照明单元，包括用于照射S波或P波的偏振光的灯（11）和偏振器; 包括用于在入射光反射期间改变偏振状态的反射LCD的色分离/合成系统，用于改变来自入射光的特定光的偏振状态的延迟器叠层和用作分色器的偏振分束器， 合成器，其中偏振分束器由在589.3nm的波长下的光弹性为0.03×10 -6 mm / 2 / N或更低的材料制成，并且厚度的最小透射率为90％或更高 在波长0.42微米到25微米到0.70微米之间; 以及用于将通过分色/合成系统的图像投影到屏幕上的投影系统（16）。

公开(公告)号：KR100401106B1

公开(公告)日：2003-10-10

申请号：KR1020010041649

申请日：2001-07-11

Applicant: 삼성전기주식회사

Inventor： 이종서 ,  김동하 ,  문용식 ,  전광조 ,  박종명 ,  최학림

IPC: G03B21/00

CPC classification number: H04N9/3105 ,  G02B27/283 ,  H04N9/3167

Abstract: Disclosed is an apparatus for projection display using reflection type LCDs. The apparatus for projection display using reflection type LCDs according to the invention comprises an illuminating device including a lamp and a polarizing element for illuminating S wave or P wave, a color splitter/synthesizer, including the reflection type LCDs for providing an image corresponding to an inputted image and converting a polarizing state of incident light when reflecting the light, a retarder stack for differentiating the polarized state of a predetermined color from the incident light, and polarizing beam splitters composed of a material having a photoelastic constant less than 0.03x10-6 mm2/N at a wavelength of 589.3 nm and a minimum transmittance higher than 90% in transmitting the thickness of 25 mm at a wavelength ranged 0.42 mum-0.70 mum for performing color split, color synthesis and analysis, and a projector for projecting the image passed through the color splitter/synthesizer onto a screen.

Abstract translation: 公开了一种使用反射型LCD的投影显示装置。 根据本发明的使用反射型LCD的投影显示装置包括：包括灯和用于照射S波或P波的偏振元件的照明装置，包括反射型LCD的分色器/合成器，用于提供对应于 并且在反射光时转换入射光的偏振状态，用于使预定颜色的偏振状态与入射光不同的延迟器叠层和由光弹性常数小于0.03×10 -6的材料组成的偏振分束器 在波长为589.3nm处的透过率为25mm2 / N，在波长为0.42μm-0.70μm时透过厚度为25mm的透过率为90％以上的最小透过率，进行分色，合成分析，投影仪 通过分色器/合成器到达屏幕。