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    • 34. 发明授权
    • Rear conversion lens system
    • 后转换镜头系统
    • US4830473A
    • 1989-05-16
    • US171953
    • 1988-03-23
    • Yoshinobu Kudo
    • Yoshinobu Kudo
    • G02B13/18G02B15/08G02B15/12
    • G02B13/18G02B15/08
    • Disclosed is a compound lens system consisting of a main lens system and a rear conversion lens system located at the image side of the main lens system, wherein the rear conversion lens system comprises, from the object side to the image side, a first positive single lens component made of a synthetic resin material and having an aspheric surface and a second negative compound lens component consisting of a positive lens element and a negative lens element. The first positive single lens component has a refractive index of a determined value between 1.4 and 1.6. The difference value between a refractive index of the negative lens element and a refractive index of the positive lens element of the second negative compound lens component is selected to be between 0.01 and 0.4. The aspheric surface of the first positive single lens component is formed in such a manner as to compensate for a coma aberration, excessive compensation of a spherical aberration and excessive compensation of field curvature aberration.
    • 公开了一种复合透镜系统,其由主透镜系统和位于主透镜系统的像侧的后转换透镜系统组成,其中后转换透镜系统包括从物侧到像侧的第一正单透镜 由合成树脂材料制成并具有非球面的透镜部件和由正透镜元件和负透镜元件组成的第二负复合透镜部件。 第一正单透镜部件具有在1.4和1.6之间的确定值的折射率。 负透镜元件的折射率与第二负透镜组件的正透镜元件的折射率之间的差值选择在0.01和0.4之间。 第一正单透镜部件的非球面形状以补偿彗形像差,球面像差的过度补偿和场曲率像差的过度补偿的方式形成。
    • 36. 发明授权
    • Photographic camera
    • 摄影相机
    • US4814804A
    • 1989-03-21
    • US198314
    • 1988-05-25
    • Nobuyuki TaniguchiTakeo HodaYoshiaki HataManabu InoueYoshinobu KudoHiroshi Ueda
    • Nobuyuki TaniguchiTakeo HodaYoshiaki HataManabu InoueYoshinobu KudoHiroshi Ueda
    • G03B7/16G03B19/04G03B27/46G03B17/00
    • G03B7/16G03B19/04G03B27/462
    • A camera having, in addition to a real focal length photographing mode, a pseudo focal length photographing mode, namely, a photographing mode in which a part of a photographed image frame of a film is printed at an enlarging ratio different from an ordinary enlarging ratio to obtain a print as if it had been photographed using a telephoto lens. It is provided with means for recording photographing mode information on a frame of a film when the pseudo focal length photographing mode is selected, and a control means which brings a flash light emitting device into an operable condition in response to the selection of the pseudo focal length photographing mode and which actuates the flash light emitting device in synchronism with release of the shutter. An optical axis of a photographing lens and a flash emission tube are spaced from each other, and the pseudo focal length photographing mode can be selected only when a negative film is loaded in the camera.
    • 除了实际焦距拍摄模式之外,相机还具有伪焦距拍摄模式,即,以与普通放大率不同的放大率打印胶片的拍摄图像帧的一部分的拍摄模式 以获得打印,好像它是用长焦镜头拍摄的。 具有当选择伪焦距拍摄模式时在胶片的帧上记录拍摄模式信息的装置,以及响应于伪焦点的选择使闪光灯发光装置进入可操作状态的控制装置 并且其与快门的释放同步地驱动闪光灯发光装置。 拍摄镜头和闪光发射管的光轴彼此间隔开,并且只有当相机中装载负片时才能选择伪焦距拍摄模式。
    • 37. 发明授权
    • Front conversion lens system
    • 前转换镜头系统
    • US4749264A
    • 1988-06-07
    • US942290
    • 1986-12-16
    • Nobuyuki TaniguchiYoshiaki HataTakeo HodaManabu InoueYoshinobu KudoHiroshi Ueda
    • Nobuyuki TaniguchiYoshiaki HataTakeo HodaManabu InoueYoshinobu KudoHiroshi Ueda
    • G02B15/12G02B15/06G02B15/02G02B9/04
    • G02B15/06
    • The present invention provides a front conversion lens system attachable in front of an objective lens of a camera in which either of a real focal length photographing mode and a pseudo focal length photographing mode in which, an area, in an image recorded in a frame, smaller than a normal printing area printed when selecting the real focal length photographing mode is printed, is selectable, the lens system satisfying the following condition:0.25 (f/ DF) (L-L')/L 7.0wherein; f represents a focal length of a photographing lens system including the front conversion lens system and the objective lens; DF represents an axial thickness of the front conversion lens system; L represents a length of a diagonal line of an image plane to be printed when the real focal length photographing mode is selected; and L' represents a length of a diagonal line of an image plane to be printed when the pseudo focal length photographing mode is selected.
    • 本发明提供了一种可附接在相机物镜前方的前转换透镜系统,其中实焦距拍摄模式和伪焦距拍摄模式中的任一种,其中,记录在帧中的图像中的区域, 小于正在打印的真实焦距拍摄模式下打印的正常打印区域,可以选择满足以下条件的透镜系统:0.25(f / DF)(L-L')/ L 7.0其中; f表示包括前转换透镜系统和物镜的拍摄镜头系统的焦距; DF表示前转换透镜系统的轴向厚度; L表示当选择实际焦距拍摄模式时要打印的图像平面的对角线的长度; 并且L'表示当选择伪焦距拍摄模式时要打印的图像平面的对角线的长度。
    • 38. 发明授权
    • Photographic camera
    • 摄影相机
    • US4733263A
    • 1988-03-22
    • US932149
    • 1986-11-18
    • Nobuyuki TaniguchiTakeo HodaYoshiaki HataManabu InoueYoshinobu KudoHiroshi Ueda
    • Nobuyuki TaniguchiTakeo HodaYoshiaki HataManabu InoueYoshinobu KudoHiroshi Ueda
    • G03B7/16G03B19/04G03B27/46G03B15/03G03B17/24
    • G03B7/16G03B19/04G03B27/462
    • A camera having, in addition to a real focal length photographing mode, a pseudo focal length photographing mode, namely, a photographing mode in which a part of a photographed image frame of a film is printed at an enlarging ratio different from an ordinary enlarging ratio to obtain a print as if it had been photographed using a telephoto lens. It is provided with means for recording photographing mode information on a frame of a film when the pseudo focal length photographing mode is selected, and a control means which brings a flash light emitting device into an operable condition in response to the selection of the pseudo focal length photographing mode and which actuates the flash light emitting device in synchronism with release of the shutter. An optical axis of a photographing lens and a flash emission tube are spaced from each other, and the pseudo focal length photographing mode can be selected only when a negative film is loaded in the camera.
    • 除了实际焦距拍摄模式之外,相机还具有伪焦距拍摄模式,即,以与普通放大率不同的放大率打印胶片的拍摄图像帧的一部分的拍摄模式 以获得打印,好像它是用长焦镜头拍摄的。 具有当选择伪焦距拍摄模式时在胶片的帧上记录拍摄模式信息的装置,以及响应于伪焦点的选择使闪光灯发光装置进入可操作状态的控制装置 并且其与快门的释放同步地驱动闪光灯发光装置。 拍摄镜头和闪光发射管的光轴彼此间隔开,并且只有当相机中装载负片时才能选择伪焦距拍摄模式。
    • 40. 发明授权
    • Zoom lens
    • 变焦镜头
    • US07626767B2
    • 2009-12-01
    • US12186710
    • 2008-08-06
    • Yoshinobu Kudo
    • Yoshinobu Kudo
    • G02B15/14G02B17/00
    • G02B15/173
    • A zoom lens for capturing images that enhances the image aberration correction rate to achieve high resolution and zooming ratio. The zoom lens includes, in sequence from an object side to an image side, a first lens group with positive refraction power, a second lens group with negative refraction power, a third lens group with positive refraction power, a fourth lens group with positive refraction power, a fifth lens group with positive refraction power and a sixth lens group with positive refraction power. The positions of first and sixth lens groups are fixed during photographing. When the zoom lens is made to zoom from a wide-angle end to a telephoto end thereof, the second lens group moves toward the image side while the fourth and fifth lens groups move toward the object side. In addition, the zoom lens has a reflection element so as to fold the image light entering thereof.
    • 一种变焦镜头,用于捕获增强图像像差校正速率的图像,以实现高分辨率和变焦比。 变焦透镜从物体侧到像侧依次包括具有正折射力的第一透镜组,具有负折射光焦度的第二透镜组,具有正折射光焦度的第三透镜组,具有正折射率的第四透镜组 具有正折射率的第五透镜组和具有正折射光焦度的第六透镜组。 第一和第六透镜组的位置在拍摄期间是固定的。 当变焦透镜从广角端到其远摄端变焦时,第二透镜组朝向像侧移动,而第四和第五透镜组朝向物体侧移动。 此外,变焦透镜具有反射元件,以折叠其进入的图像光。