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    • 4. 发明授权
    • Image capturing unit and image capturing device
    • 图像捕获单元和图像捕获设备
    • US07043153B2
    • 2006-05-09
    • US10829238
    • 2004-04-22
    • Tetsuhide TakeyamaToshiyuki Nagaoka
    • Tetsuhide TakeyamaToshiyuki Nagaoka
    • G03B5/00G02B1/06G02B3/14
    • G02B13/0075A61B1/0019A61B1/041G02B13/14
    • An image capturing unit comprises a variable optical element, an optical unit, and a light-flux limiting section. The variable optical element includes a first liquid member, a second liquid member, and a container which contains the first liquid member and the second liquid member. An interfacial shape between the first liquid member and the second liquid member varies according to a voltage which is applied to the liquid members. The light-influx limiting section satisfies following condition 0.1
    • 图像拍摄单元包括可变光学元件,光学单元和光通量限制部。 可变光学元件包括第一液体部件,第二液体部件和容纳第一液体部件和第二液体部件的容器。 第一液体构件和第二液体构件之间的界面形状根据施加到液体构件的电压而变化。 光入射限制部分满足以下条件<?in-line-formula description =“In-line Formulas”end =“lead”?> 0.1 <(Phi-2xh)<20.0 <?in-line-formula description =“ 其中Phi(mm)表示可变光学元件中的轴向光通量的最大直径,h(mm)表示在光线上的轴向光通量的最高位置 - 可变光学元件的固定端。 通过这样做,可以限制耀斑光和重影光,并且防止在捕获的图像中观察到液体部件中的杂质。
    • 5. 发明授权
    • Variable optical element, optical unit, and image capturing device
    • 可变光学元件,光学单元和图像捕获装置
    • US06934090B2
    • 2005-08-23
    • US10822132
    • 2004-04-12
    • Toshiyuki NagaokaTetsuhide Takeyama
    • Toshiyuki NagaokaTetsuhide Takeyama
    • G02B15/00G02B1/06G02B3/14G02B26/02G02B9/00G02B7/02
    • G02B3/14A61B1/0019G02B26/005
    • A variable optical element is formed by a first liquid member, a second liquid member which is unsoluble in the first liquid member, a container which contains the first liquid member and the second liquid member, an index for positioning the variable optical element according to a predetermined reference. In the variable optical element, an interfacial shape between the first liquid and the second liquid surface varies according to a voltage which is applied to the liquid members, and the index is disposed such that a wave front aberration in the variable optical element should be minimum or fewer than a predetermined value under condition that the variable optical element is positioned according to the predetermined reference. By doing this, it is possible to restrict the wave front aberration which is caused by a gravity in the variable optical element, the optical unit, and the image capturing device.
    • 可变光学元件由第一液体部件,不溶于第一液体部件的第二液体部件,容纳第一液体部件和第二液体部件的容器构成,根据 预定参考。 在可变光学元件中,第一液体和第二液面之间的界面形状根据施加到液体部件的电压而变化,并且指数被设置为使得可变光学元件中的波前像差应当为最小 或者在可变光学元件根据预定参考定位的条件下小于预定值。 通过这样做,可以限制由可变光学元件,光学单元和图像捕获装置中的重力引起的波前像差。
    • 6. 发明授权
    • Zoom optical system and imaging apparatus using the same
    • 变焦光学系统及使用其的摄像装置
    • US06859332B2
    • 2005-02-22
    • US10643958
    • 2003-08-20
    • Tetsuo NagataTetsuhide Takeyama
    • Tetsuo NagataTetsuhide Takeyama
    • G02B5/10G02B15/16G02B15/177H04N5/225H04N5/232G02B15/14G02B5/08G02B17/00
    • G02B15/177
    • A zoom optical system includes a deformable element having a focusing function and two lens groups movable in a magnification change and having a magnification varying function or a compensating function for compensating for a shift of an image surface. Alternatively, a zoom optical system includes, in order from the object side, a first group having a negative power and being fixed in a magnification change, a second group having a positive power and being movable in a magnification change, and a third group movable in a magnification change. The first group has a deformable element having a focusing function. An imaging apparatus is provided with either zoom optical system. Whereby, a high-performance zoom optical system with small fluctuation of aberrations in spite of use of a deformable element and a photographing apparatus using the same zoom optical system are provided.
    • 变焦光学系统包括具有聚焦功能的可变形元件和可以放大倍数变化并具有放大倍数变化功能的两个透镜组或用于补偿图像表面偏移的补偿功能。 或者,变焦光学系统从物体侧依次包括具有负功率并以倍率变化固定的第一组,具有正功率并且可以在倍率变化中移动的第二组,以及可移动的第三组 在放大变化。 第一组具有具有聚焦功能的可变形元件。 成像装置具有变焦光学系统。 因此,提供尽管使用可变形元件的像差波动小的高性能变焦光学系统和使用相同的变焦光学系统的摄影装置。
    • 9. 发明申请
    • Observation optical system using volume hologram
    • 观察光学系统使用体积全息图
    • US20050002073A1
    • 2005-01-06
    • US10865830
    • 2004-06-14
    • Tohru NakamuraTetsuhide Takeyama
    • Tohru NakamuraTetsuhide Takeyama
    • G02B5/04G02B5/32G02B17/08G02B25/00G02B27/00G02B27/01G02B27/02G09F9/00H04N5/225H04N5/64H04N7/18G02B17/00
    • G02B27/017G02B27/0172G02B2027/0132G02B2027/0178
    • An observation optical system comprises an image display element 5 and an eyepiece optical system which introduces an image formed by the image display element 5 to a center of an eye of an observer without forming an intermediate image, so as to allow the observer to observe the image as a virtual image. The eyepiece optical system is constructed and arranged to bend the optical axis using reflecting surfaces so as to be compact. The optical axis lies in a plane, with respect to which the optical system is formed symmetric. The optical system includes a prism 3 having an entrance surface 33, a plurality of curved reflecting surfaces 31, 32 and an exit surface 31. The reflecting surface 32 is provided with a volume hologram (HOE) 4. Whereby, it is possible to provide an image observation optical system which can be made compact enough to be usable as an image display unit for a cellular phone or a portable intelligent terminal, and which can achieve high image definition and wide field angle while controlling chromatic aberration of magnification to be small.
    • 观察光学系统包括图像显示元件5和目镜光学系统,其将由图像显示元件5形成的图像引入观察者的眼睛的中心而不形成中​​间图像,以便观察者观察 图像作为虚拟图像。 目镜光学系统被构造和布置成使用反射表面使光轴弯曲以致于紧凑。 光轴位于相对于光学系统对称的平面中。 光学系统包括具有入射表面33,多个弯曲反射表面31,32和出射表面31的棱镜3.反射表面32设置有体积全息图(HOE)4。由此,可以提供 可以将其制造得足够小以用作蜂窝电话或便携式智能终端的图像显示单元,并且可以在控制倍数倍数小的同时实现高图像清晰度和宽视场角的图像观察光学系统。
    • 10. 发明授权
    • Viewing optical system and image display apparatus using the same
    • 观看光学系统和使用其的图像显示装置
    • US06445507B2
    • 2002-09-03
    • US09796424
    • 2001-03-02
    • Takayoshi ToginoTetsuhide Takeyama
    • Takayoshi ToginoTetsuhide Takeyama
    • G20B2714
    • G02B27/0172G02B2027/0132G02B2027/0178H04N5/44H04N5/7408H04N5/7491
    • A compact, bright and high-performance viewing optical system capable of color display has a reflection type image display device, an ocular optical system and an illuminating device formed from a plurality of juxtaposed illuminating light sources of different colors. An illuminating light guide optical device is placed between the entrance pupil and the reflection type image display device. The ocular optical system includes a decentered prism formed from a medium surrounded by three optical surfaces and having a refractive index larger than 1. A chromatic aberration producing device is placed between the entrance pupil and the illuminating light guide optical device. The chromatic aberration producing device is arranged to superimpose the images of the plurality of illuminating light sources on one another in the exit pupil.
    • 能够进行彩色显示的紧凑,明亮且高性能的观察光学系统具有反射型图像显示装置,眼睛光学系统和由多个并列的不同颜色并置的照明光源形成的照明装置。 照明光导光学装置被放置在入射光瞳和反射型图像显示装置之间。 眼睛光学系统包括由三个光学表面围绕并具有大于1的折射率的介质形成的偏心棱镜。在入射光瞳和照明光导光学装置之间放置色差产生装置。 色差产生装置被布置成在出射光瞳中将多个照明光源的图像彼此叠加。