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公开(公告)号：JPH05303143A
公开(公告)日：1993-11-16
申请号：JP11025092
申请日：1992-04-28
Applicant: SONY CORP
Inventor： HIMURO MASAMI
Abstract: PURPOSE:To miniaturize the projection lens of a projector in an illumination device used for the projector such as a liquid crystal projector. CONSTITUTION:In the illumination device of the projector that light from a point light source 11 is made a parallel light beam, transmission original plates 19R, 19G and 19B(liquid crystal panels) are irradiated with the parallel light beam and the light beams transmitted through the plates 19R, 19G and 19B is projected on a screen, the light from the light source 11 is made the parallel light beam by a parabola reflecting mirror 2 arranged at the back part of the light source 11 and a spherical reflecting mirror 3 arranged in front of the light source except the output part of the parallel light beam. Besides, a parabola reflecting mirror whose diameter of aperture is almost equal to the required illuminating diameter of the parallel light beam and whose focal distance is set so that converging efficiency becomes 50% is used as the mirror 2. As the mirror 3, a spherical mirror whose diameter is somewhat larger than the required illuminating diameter of the parallel light beam is used.
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公开(公告)号：JPH05303071A
公开(公告)日：1993-11-16
申请号：JP10799492
申请日：1992-04-27
Applicant: SONY CORP
Inventor： HIMURO MASAMI
Abstract: PURPOSE:To constitute the liquid crystal projector which can display good images of a small-sized device consisting of a small-sized optical system. CONSTITUTION:The projector for projecting the image displayed on a transmission original plate 2 on a screen is constituted to converge illuminating light by a field lens 1 and to make the converged illuminating light incident on a relay lens 3 for forming the virtual reduced image after passing the light through the transmission original plate 2 and to display the exit light of a projecting lens 4 on the screen by making the exit light of the relay lens 3 for forming the virtual reduced image incident on the projecting lens 4.
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公开(公告)号：JPS639396A
公开(公告)日：1988-01-16
申请号：JP15330586
申请日：1986-06-30
Applicant: SONY CORP
Inventor： HIMURO MASAMI
IPC: H04N9/31
Abstract: PURPOSE:To obtain a color picture image of high luminance and good color balance by using a tungsten lamp, etc., by reducing the length of light path of blue light after dividing into red light, green light and blue light until composing shortest and at the same time extending the length of light path of red light longest. CONSTITUTION:Light from a tungsten lamp 11 is divided into three primary colors by dichroic mirrors 15-17 of blue, green, red, and divided colors are composed by a synthesizing dichroic mirror 20, and the composed light is projected on a screen 28 from a projector lens 22. The light path of red light from the tungsten lamp 11 to the projector lens 22 is longer than those of green light and blue light, and light paths of green light and blue light become the same length. Accordingly, red light diverges more than other colors by the length of light path and becomes nearly the same quantity with green light and blue light. Thus, the good picture image of well balanced colors as a composed color image of three primary colors can be obtained.
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公开(公告)号：JPS6161166B2
公开(公告)日：1986-12-24
申请号：JP7964377
申请日：1977-07-04
Applicant: SONY CORP
Inventor： HIMURO MASAMI
IPC: H04N5/7826 , G11B5/588 , G11B5/592 , G11B15/467
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公开(公告)号：JPS61122626A
公开(公告)日：1986-06-10
申请号：JP24487984
申请日：1984-11-20
Applicant: Sony Corp
Inventor： HIMURO MASAMI
Abstract: PURPOSE: To convert completely polarized light to parallel illumination by inverting the one advance direction of the polarized light components obtained from a polarized beam splitter, by a plane reflecting mirror, and using the other as the illuminating light.
CONSTITUTION: A light from a light source 1 consisting of a transparent light emitting body and a spherical reflecting mirror 3 or an elliptical reflecting mirror centering around this transparent light emitting body is paralleled by a paralleling lens, and this parallel light is supplied to a polarized beam splitter 7 through a λ/4 optical phase plate 23. An advance direction of one of an S polarized light component or a P polarized light component obtained from this polarized beam splitter 7 is inverted by a plane reflecting mirror 22, and the other of the S polarized light component or the P polarized light component obtained from this polarized beam splitter 7 is used as an illuminating light. One of the S polarized light component or the P polarized light component obtained from the polarized beam splitter 7, whose advance direction is inverted by the plane reflecting mirror 22 executes one reciprocating motion between the polarized beam splitter 7 and the light source 1, is supplied to the polarized beam splitter, synthesized with the other, and becomes an illuminating light.
COPYRIGHT: (C)1986,JPO&JapioAbstract translation: 目的：通过将由偏振分束器获得的偏振光分量的一个前进方向，通过平面反射镜反射并使用另一个作为照明光来将完全偏振光转换成平行照明。 构成：来自由透明发光体和球面反射镜3构成的光源1的光或者围绕该透明发光体的椭圆形反射镜与并联透镜并联，并且将该平行光供给到极化 分束器7通过λ/ 4光学相位板23.由该偏振分束器7获得的S偏振光分量或P偏振光分量中的一个的前进方向由平面反射镜22反转，另一个 使用从该偏振光束分离器7获得的S偏振光分量或P偏振光分量作为照明光。 由偏振分束器7获得的S偏振光分量或P偏振光分量中的一个，其偏振分束器7的前进方向由平面反射镜22反转，在偏振分束器7和光源1之间执行一次往复运动， 到与另一个合成的偏振分束器，并且变成照明光。
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Patent Agency Ranking
公开(公告)号：JPS6190127A
公开(公告)日：1986-05-08
申请号：JP21184284
申请日：1984-10-09
Applicant: Sony Corp
Inventor： HIMURO MASAMI
Abstract: PURPOSE: To prevent crosstalk between adjacent light valves by forming a groove between each couple of electrodes of an electrooptic element and supplying a driving signal to plural couples of electrodes zigzag.
CONSTITUTION: A reflecting mirror 15 is provided on one surface of the flat plate type electrooptic element 8a, and couples of electrodes 8b and 8c which extend in the opposite direction across a light irradiation part 8d are arranged horizontally on the other surface. Then, grooves 16 are formed at positions between respective couples of electrodes 8b and 8c of the electrooptic element 8a to specific depth from the other surface side. Further, the driving signal is supplied to plural couples of electrodes 8b and 8c zigzag.
COPYRIGHT: (C)1986,JPO&JapioAbstract translation: 目的：通过在电光元件的每对电极之间形成沟槽并将驱动信号提供给多对电极之字形来防止相邻光阀之间的串扰。 构成：在平板型电光元件8a的一个表面上设置反射镜15，并且在相反方向上延伸穿过光照射部分8d的电极8b和8c之间的水平配置在另一个表面上。 然后，在电子元件8a的电极8b和8c的各对之间的位置处，相对于另一个表面侧的特定深度形成有沟槽16。 此外，驱动信号被提供给多对电极8b和8c曲折。
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公开(公告)号：JPS6019043B2
公开(公告)日：1985-05-14
申请号：JP14817375
申请日：1975-12-11
Applicant: SONY CORP
Inventor： HIMURO MASAMI , SATO AKISHI
IPC: H04N5/7826 , G05D3/12 , G05D13/62 , G11B5/588 , G11B5/592
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公开(公告)号：JPS5942514B2
公开(公告)日：1984-10-15
申请号：JP1449075
申请日：1975-02-04
Applicant: Sony Corp
Inventor： HIMURO MASAMI
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公开(公告)号：JPS59128515A
公开(公告)日：1984-07-24
申请号：JP451483
申请日：1983-01-14
Applicant: Sony Corp
Inventor： HIMURO MASAMI , MURANO KANJI , WATANABE YOSHIHISA , NISHIGAKI SUSUMU
CPC classification number: G02F1/055
Abstract: PURPOSE:To enable low power driving of driving voltage and enable stable operation by using a PLZT sintered body that shows memorability at normal temperature and shows secondary effect at electrooptical shutter driving temperature. CONSTITUTION:An electrical shutter 3 is provided between linear polarizing plates 1, 2. Opposed electrodes 4, 5 are arranged in the PLZT ceramics sintered body of the shutter 3. Polarizing plates 1, 2 are so selected that direction of electric field vector of linearly polarized light selected by them intersect at right angle, and the direction of electric field of the sintered body 6, i.e. the direction of optic axis, is made about 45 deg.. When linearly polarized light advances in the shutter 3 after passing through the plate 1, the rotation of vector takes place depending on applied voltage of the shutter and the thickness of the plate, and the light passes through the plate 2 rotating 90 deg.. The shutter 3 shows memorability at normal temperature, and shows secondary effect at specified electrooptical shutter driving temperature. Thus, driving by low power becomes possible.
Abstract translation: 目的：通过使用在常温下显示可记忆性的PLZT烧结体实现驱动电压的低功耗驱动，并可实现稳定运行，并在电光闸驱动温度下显示二次效应。 构成：在线性偏光板1,2之间设置电动挡板3.在挡板3的PLZT陶瓷烧结体中配置有相对的电极4,5，偏振板1,2选择为线性偏振片1,2的电场矢量的方向。 由它们选择的偏振光以直角相交，并且烧结体6的电场方向（即光轴方向）约为45度。当线偏振光在通过板之后在快门3中前进 如图1所示，矢量的旋转取决于快门的施加电压和板的厚度，并且光通过旋转90度的板2。快门3在常温下显示可记忆性，并且在指定的温度下显示次要效果 电光闸驱动温度。 因此，能够以低功率驱动。
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