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    • 1. 发明授权
    • Light projection type measurement apparatus effectively utilizing a post
of a one-chip microcomputer
    • 光投射式测量装置有效利用单片微型计算机的立柱
    • US5337116A
    • 1994-08-09
    • US996719
    • 1992-12-24
    • Osamu NonakaTakeshi KindaichiKazunori Mizokami
    • Osamu NonakaTakeshi KindaichiKazunori Mizokami
    • G01C3/08G01S17/08G02B7/32G03B13/36
    • G02B7/32G01C3/08G01S17/08
    • A distance measurement apparatus for use in a camera having a CPU. The apparatus has no analog distance-measuring IC and can yet perform active distance measuring. It comprises an infrared-emitting diode (IRED), a light-receiving element and an integration circuit, both connected to the ports of the CPU. In operation, the IRED emits an infrared beam toward an object. The light-receiving element receives the beam reflected form the object and stationary light and converts the beam and the light into an electric signal. The integration circuit integrates the electric signal. The CPU measures a first period of time lapsing from the time when the the integration circuit is initialized to the time when the output of the integration circuit increases over a predetermined value. The CPU also measures a second period of time lapsing from the time when the the integration circuit is initialized to the time when the output of the integration circuit increases over the predetermined value while the IRED is emitting no infrared beam. From the first and second periods of time, thus measured, the CPU determines the distance at which the object is located, not influenced by from the stationary light at all.
    • 一种用于具有CPU的相机的距离测量装置。 该设备没有模拟距离测量IC,还可以进行有源距离测量。 它包括连接到CPU的端口的红外发射二极管(IRED),光接收元件和集成电路。 在操作中,IRED朝向物体发射红外光束。 光接收元件接收从物体反射的光束和固定光,并将光束和光转换成电信号。 集成电路集成了电信号。 CPU测量从积分电路初始化的时间到积分电路的输出增加超过预定值的时间的第一时间段。 该CPU还测量从积分电路初始化时到集成电路的输出增加超过预定值,而IRED不发射红外光束时的第二时间段。 从这样测量的第一和第二时间段,CPU确定对象所在的距离,而不受固定光的影响。
    • 2. 发明授权
    • Ranging apparatus installed in camera
    • 测距仪安装在相机中
    • US06308014B1
    • 2001-10-23
    • US09411703
    • 1999-10-01
    • Osamu NonakaMasataka IdeTakeshi KindaichiKoichi Nakata
    • Osamu NonakaMasataka IdeTakeshi KindaichiKoichi Nakata
    • G03B1300
    • G02B7/32
    • A ranging apparatus according to the present invention can execute accurate focusing even when photography is performed in, for example, an environment in which the background of a main subject to be photographed is a night view. This accurate focusing is executed by performing two pre-integration operations, one with light projection and the other without light projection, then comparing signal patterns obtained by the two pre-integration operations to thereby select a partial area of a line sensor, which shows a difference between the signal patterns obtained by the comparison, and mainly using an output from this area as a signal for ranging. Further, this ranging apparatus performs pre-emission before the ranging operation, using the line sensor to set the ranging area of the apparatus substantially equal to an image area to be shot, thereby determining the position of the main subject in the image area to be shot. Thus, the ranging apparatus can select a desired subject without focus lock operations.
    • 即使在例如要拍摄的主要被摄体的背景是夜景的环境中执行拍摄,根据本发明的测距设备也可以执行精确的聚焦。 通过执行两个预积分操作(一个具有光投影而另一个不具有光投影),然后比较通过两个预积分操作获得的信号模式,从而选择线传感器的部分区域来执行该精确对焦,其中示出了 通过比较获得的信号模式之间的差异,并且主要使用该区域的输出作为测距信号。 此外,该测距装置在测距操作之前执行预发射,使用线传感器将设备的测距区域设置为基本上等于要拍摄的图像区域,从而确定图像区域中主要被摄体的位置为 射击。 因此,测距装置可以选择所需的对象而不进行对焦锁定操作。
    • 5. 发明授权
    • Distance measurement apparatus and optical system using the same
    • 距离测量装置和使用其的光学系统
    • US5708860A
    • 1998-01-13
    • US521032
    • 1995-08-29
    • Osamu NonakaKazunori Mizokami
    • Osamu NonakaKazunori Mizokami
    • G02B7/32G03B7/16G03B17/08G03B3/00
    • G03B17/08G02B7/32G03B7/16
    • A CPU causes a Xe tube to emit light by charging a charging capacitor through an emission control circuit. Flash light from the Xe tube is projected toward an object to be measured through a mask, a visible light cutting filter, and a projection lens. Light reflected by the object is incident on a light-receiving element through a light-receiving lens and the visible light cutting filter. An output from the light-receiving element is input to a light position detection circuit. The CPU then calculates the distance to the object in accordance with an output from the light position detection circuit. A camera which can be used in water includes an electronic flash section capable of controlling its light amount. An underwater detection section detects whether the camera is used in water, and sends the detection result to a CPU. A distance measurement section projects a distance measurement light beam onto an object to be photographed, and measures the amount of light reflected by the object. The CPU estimates a light attenuation ratio in the environment where the camera is used on the basis of the detection result and the reflected light amount measurement result, and sets the amount of light to be emitted from the electronic flash section. With this operation, the electronic flash section is caused to emit light, and exposure in the camera is controlled by an exposure control section.
    • CPU通过通过发射控制电路对充电电容器充电来使Xe管发光。 来自Xe管的闪光灯通过掩模,可见光切割过滤器和投影透镜投射到要测量的物体上。 被物体反射的光通过光接收透镜和可见光截止滤光器入射到受光元件上。 来自光接收元件的输出被输入到光位置检测电路。 然后CPU根据来自光位置检测电路的输出计算到物体的距离。 可以在水中使用的相机包括能够控制其光量的电子闪光部。 水下检测部检测相机是否在水中使用,并将检测结果发送到CPU。 距离测量部将距离测量光束投影到要拍摄的物体上,并且测量被物体反射的光量。 CPU基于检测结果和反射光量测量结果估计使用相机的环境中的光衰减率,并且设置从电子闪光部分发射的光量。 通过该操作,使电子闪光部分发光,并且通过曝光控制部控制相机中的曝光。
    • 10. 发明授权
    • Camera and display control method of the same
    • 相机和显示控制方法相同
    • US08471944B2
    • 2013-06-25
    • US12859937
    • 2010-08-20
    • Osamu NonakaAkira TaniSatoshi Hara
    • Osamu NonakaAkira TaniSatoshi Hara
    • H04N5/222H04N5/228H04N5/76H04N5/225
    • H04N5/23245H04N5/23219H04N5/23293H04N2201/325
    • A camera according to the present invention comprises: an imaging section converting an object image into image data; a storage section storing still image data of a still image obtained by the imaging section, thumbnail image data of the still image, and moving image data of a moving image which has been photographed at timing at least either before or after photographing of the still image; a display section performing display of one or more thumbnail views according to the thumbnail image data; and a display control section, when one of the thumbnail views is designated in the thumbnail view display, performing display of the still image on the display section according to the still image data corresponding to the designated thumbnail view after having performed display of the moving image according to the moving image data corresponding to the designated thumbnail view stored in the storage section.
    • 根据本发明的相机包括:成像部分,将对象图像转换为图像数据; 存储部分,其存储由摄像部分获得的静止图像的静止图像数据,静止图像的缩略图图像数据和在静止图像拍摄之前或之后的至少一个时刻拍摄的运动图像的运动图像数据 ; 显示部分,根据缩略图数据执行一个或多个缩略图的显示; 以及显示控制部分,当在缩略图视图显示中指定其中一个缩略图视图时,在执行了运动图像的显示之后,根据与指定的缩略图视图对应的静止图像数据在显示部分上显示静止图像 根据对应于存储在存储部分中的指定缩略图的运动图像数据。