公开(公告)号：US20060263076A1

公开(公告)日：2006-11-23

申请号：US11497083

申请日：2006-08-01

申请人： Makibi Nakamura

发明人： Makibi Nakamura

IPC分类号： G03B13/00

CPC分类号： H04N5/2256 ,  G02B5/32 ,  G02B7/32 ,  G02B7/36 ,  G03B3/10 ,  G03B13/34 ,  G03B13/36 ,  G03B17/02 ,  G03B21/26 ,  G03H1/2249 ,  G03H2001/2218 ,  G03H2001/2221 ,  G03H2001/2244 ,  G03H2210/20 ,  H01S5/068 ,  H01S5/06825 ,  H04N5/23212

摘要： Image projection apparatus wherein, a focusing lens is controlled when a shutter is operated so that a contrast signal, obtained when a luminance signal from a camera signal processing circuit is supplied to an auto focusing detection circuit, may become maximum. A laser diode is driven to generate laser beams that are condensed into parallel laser beams by a condenser. These parallel laser beams are applied to a hologram plate and thereby diffracted. The diffracted laser beams interfere with each other, to produce a hologram image with sufficient contrast. Therefore, satisfactory focusing can be made in an auto focus mode of the contrast detection system or in a manual focus mode.

公开(公告)号：US06970647B2

公开(公告)日：2005-11-29

申请号：US11083790

申请日：2005-03-18

申请人： Makibi Nakamura

发明人： Makibi Nakamura

IPC分类号： G02B5/32 ,  G02B7/10 ,  G02B7/32 ,  G02B7/36 ,  G03B3/10 ,  G03B13/34 ,  G03B21/26 ,  H01S5/068 ,  H04N5/232 ,  G03B13/18

CPC分类号： H04N5/2256 ,  G02B5/32 ,  G02B7/32 ,  G02B7/36 ,  G03B3/10 ,  G03B13/34 ,  G03B13/36 ,  G03B17/02 ,  G03B21/26 ,  G03H1/2249 ,  G03H2001/2218 ,  G03H2001/2221 ,  G03H2001/2244 ,  G03H2210/20 ,  H01S5/068 ,  H01S5/06825 ,  H04N5/23212

摘要： Image projection apparatus wherein, a focusing lens is controlled when a shutter is operated so that a contrast signal, obtained when a luminance signal from a camera signal processing circuit is supplied to an auto focusing detection circuit, may become maximum. A laser diode is driven to generate laser beams that are condensed into parallel laser beams by a condenser. These parallel laser beams are applied to a hologram plate and thereby diffracted. The diffracted laser beams interfere with each other, to produce a hologram image with sufficient contrast. Therefore, satisfactory focusing can be made in an auto focus mode of the contrast detection system or in a manual focus mode.

摘要翻译： 图像投影装置，其中，当快门被操作时控制聚焦透镜，使得当来自相机信号处理电路的亮度信号被提供给自动聚焦检测电路时获得的对比度信号可能变得最大。 激光二极管被驱动以产生通过冷凝器冷凝成平行激光束的激光束。 将这些平行的激光束施加到全息板上，从而衍射。 衍射激光束彼此干涉，产生具有足够对比度的全息图像。 因此，可以在对比度检测系统的自动聚焦模式或手动对焦模式中进行令人满意的聚焦。

公开(公告)号：US20050163495A1

公开(公告)日：2005-07-28

申请号：US11083528

申请日：2005-03-18

申请人： Makibi Nakamura

发明人： Makibi Nakamura

IPC分类号： G02B5/32 ,  G02B7/10 ,  G02B7/32 ,  G02B7/36 ,  G03B3/10 ,  G03B13/34 ,  G03B21/26 ,  H01S5/068 ,  H04N5/232 ,  G03B13/00

CPC分类号： H04N5/2256 ,  G02B5/32 ,  G02B7/32 ,  G02B7/36 ,  G03B3/10 ,  G03B13/34 ,  G03B13/36 ,  G03B17/02 ,  G03B21/26 ,  G03H1/2249 ,  G03H2001/2218 ,  G03H2001/2221 ,  G03H2001/2244 ,  G03H2210/20 ,  H01S5/068 ,  H01S5/06825 ,  H04N5/23212

摘要： The present invention relates to an image projection apparatus, a projection image pattern, a laser drive apparatus and a camera apparatus fit for use with an electronic still camera for example. In the present invention, when a microcomputer 8 detects that a shutter release 9 is depressed, wherein a focusing lens [3] is controlled when a shutter is operated so that a contrast signal, obtained when a luminance signal from a camera signal processing circuit [6] is supplied to an auto focusing detection circuit, [7] may become maximum. A control signal from the microcomputer 8 is supplied to a laser driver 13, so that a laser diode [14] is driven to generate light of laser beams only while this control signal is supplied to the laser driver. The light of laser beams thus generated is further that are condensed into light of parallel laser beams by a condenser [15]. These parallel laser beams are applied to a hologram plate [16] and thereby diffracted. The diffracted laser beams thus diffracted are caused to interfere with each other, whereby to produce a hologram reproduced image 17 is reproduced. This makes it possible to project a hologram reproduced image with sufficient contrast onto an object by small power consumption. Therefore, satisfactory focusing can be made in an auto focus mode of the contrast detection system or in a manual focus mode. At the same time, this apparatus can really be incorporated, for example, into a small electronic still camera with ease.

摘要翻译： 本发明涉及例如适用于电子静态照相机的图像投影装置，投影图像图案，激光驱动装置和照相机装置。 在本发明中，当微型计算机8检测到快门释放9被按下时，其中当快门被操作时控制聚焦透镜[3]，使得当来自相机信号处理电路的亮度信号[ 6]被提供给自动聚焦检测电路，[7]可能变得最大。 来自微型计算机8的控制信号被提供给激光驱动器13，使得激光二极管[14]被驱动以仅在该控制信号被提供给激光驱动器时产生激光束。 由此产生的激光束的光又被冷凝器冷凝成平行激光束的光[15]。 这些平行激光束被施加到全息板[16]上，从而衍射。 由此衍射的衍射激光束彼此干涉，从而再现产生全息图再现图像17。 这使得可以通过小功耗将具有足够对比度的全息图再现图像投射到对象上。 因此，可以在对比度检测系统的自动聚焦模式或手动对焦模式中进行令人满意的聚焦。 同时，该装置可以真正地被并入，例如，容易地并入小型电子静态照相机中。

公开(公告)号：US06229568B1

公开(公告)日：2001-05-08

申请号：US08668751

申请日：1996-06-24

申请人： Naoki Kawaguchi ,  Makibi Nakamura

发明人： Naoki Kawaguchi ,  Makibi Nakamura

IPC分类号： H04N5232

CPC分类号： H04N5/23212

摘要： An automatic focus control method and apparatus are capable of correctly controlling the focus even when an object having a high contrast enters or leaves goes out from a distance measurement frame during the focusing operation. A control microcomputer monitors the detecting position of the focusing signal generated by an automatic focus detection circuit. If the control microcomputer concludes that the detecting position of the focusing signal is in a peripheral area of the distance measurement frame, the control microcomputer outputs a distance measurement frame control signal to change the location or the size of the distance measurement frame so that an object having a high contrast no longer either enters or goes out from the distance measurement frame.

摘要翻译： 即使当聚焦操作期间具有高对比度的物体进入或离开距离测量帧时，自动对焦控制方法和装置也能够正确地控制焦点。 控制微机监视由自动聚焦检测电路产生的聚焦信号的检测位置。 如果控制微机断定聚焦信号的检测位置在距离测量帧的周边区域中，则控制微机输出距离测量帧控制信号来改变距离测量帧的位置或大小，使得对象 具有高对比度不再进入或离开距离测量框架。