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    • 2. 发明授权
    • Scanning optical device
    • 扫描光学设备
    • US6064504A
    • 2000-05-16
    • US791977
    • 1997-01-31
    • Tadashi MinakuchiMasahiro OonoMitsunori IimaHiroshi Kanazawa
    • Tadashi MinakuchiMasahiro OonoMitsunori IimaHiroshi Kanazawa
    • B41J2/47G02B26/12G02B26/08
    • B41J2/471G02B26/123G02B26/124
    • A scanning optical device includes a light source that emits a light beam; a deflector for deflecting and scanning the light beam from the light source; a scanning lens for converging the deflected light beam onto an image surface; and a mechanism for adjusting the relative position of at least one lens element of the scanning lens with respect to other lens elements of the scanning lens in an auxiliary scanning direction. Preferably, the adjustable lens element of the scanning lens be provided with an anamorphic surface having relatively larger power in the auxiliary scanning direction than in the main scanning direction. Alternatively, the above-mentioned at least one lens element may have the largest absolute value of refractive power of the lenses in the scanning lens. Further alternatively, the above-mentioned at least one lens element may be provided with a surface having the smallest absolute value of radius of curvature of all surfaces in the scanning lens.
    • 扫描光学装置包括发射光束的光源; 偏转器,用于偏转和扫描来自光源的光束; 用于将偏转的光束会聚到图像表面上的扫描透镜; 以及用于调整扫描透镜的至少一个透镜元件相对于扫描透镜的其它透镜元件在辅助扫描方向上的相对位置的机构。 优选地,扫描透镜的可调节透镜元件设置有在辅助扫描方向上比在主扫描方向上具有相对较大功率的变形表面。 或者,上述至少一个透镜元件可以具有扫描透镜中的透镜的屈光力的绝对值的最大值。 此外,上述至少一个透镜元件可以设置有扫描透镜中所有表面的曲率半径绝对值最小的表面。
    • 7. 发明授权
    • Scanning optical device
    • 扫描光学设备
    • US5760944A
    • 1998-06-02
    • US791983
    • 1997-01-31
    • Tadashi MinakuchiMasahiro OonoMitsunori IimaHiroshi Kanazawa
    • Tadashi MinakuchiMasahiro OonoMitsunori IimaHiroshi Kanazawa
    • B41J2/47G02B26/12G02B26/08
    • B41J2/471G02B26/123G02B26/124
    • A scanning optical device that includes a light source that emits a light flux; a polygon mirror for deflecting the light flux; a scanning lens for converging the light flux deflected by the polygon mirror to form a beam spot on an image surface; a dynamic prism that is rotatably disposed between the light source and the polygon mirror to affect the direction of the light flux; a driving mechanism for rotating the dynamic prism to change the deviation angle of the dynamic prism; and a controller for controlling the driving mechanism to change the position of the beam spot during scanning. In particular, the controller rotates the dynamic prism to compensate for errors that affect the position of the beam spot on the image surface, such as errors that vary with time and errors that occur randomly during the scanning process.
    • 一种扫描光学装置,包括发射光束的光源; 用于偏转光束的多面镜; 用于会聚由多面镜偏转的光束以在图像表面上形成束斑的扫描透镜; 可旋转地设置在光源和多面镜之间以影响光通量的方向的动态棱镜; 用于旋转所述动态棱镜以改变所述动态棱镜的偏离角的驱动机构; 以及用于控制驱动机构以在扫描期间改变束斑的位置的控制器。 特别地,控制器旋转动态棱镜以补偿影响图像表面上的束斑的位置的误差,例如随扫描过程随机随时间变化的误差和错误。
    • 9. 发明授权
    • Automatic photographing device for video camera
    • 摄像机自动拍摄装置
    • US4593985A
    • 1986-06-10
    • US668346
    • 1984-11-05
    • Tadashi Minakuchi
    • Tadashi Minakuchi
    • G04F3/00H04N1/21H04N5/225G03B1/00G03B17/40
    • H04N1/00477H04N1/00931H04N1/2112H04N1/2125H04N1/2129H04N5/2251H04N2101/00Y10S358/906
    • An automatic photographing device for a video camera which permits the photographer to enter the picture before the picture recording operation is started and times the picture recording operation to automatically stop after a predetermined period of time. The output of a trigger switch is applied through serially connected first and second timer sections. The first timer section establishes a delay time after the trigger switch is turned on until the picture recording operation commences, while the second timer section establishes the picture recording time. The output of the second timer section controls the operation of the recording device of a photographing section. Further, a display device is provided for indicating distinctively that the delay mode is in effect or that the picture photographing operation is in effect.
    • 一种用于摄像机的自动拍摄装置,其允许拍摄者在图像记录操作开始之前进入图像,并且在预定时间段之后使图像记录操作倍率自动停止。 触发开关的输出通过串联连接的第一和第二定时器部分施加。 第一定时器部分在触发开关打开之后建立延迟时间,直到图像记录操作开始,而第二计时器部分建立图像记录时间。 第二定时器部分的输出控制拍摄部分的记录装置的操作。 此外,提供了一种用于指示延迟模式有效或者图片拍摄操作有效的显示装置。