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    • 78. 发明申请
    • IMAGING OPTICAL SYSTEM AND IMAGING APPARATUS
    • 成像光学系统和成像设备
    • WO2017209220A1
    • 2017-12-07
    • PCT/JP2017/020365
    • 2017-05-31
    • RICOH COMPANY, LTD.OHASHI, Kazuyasu
    • OHASHI, Kazuyasu
    • G02B9/60G02B9/62G02B13/00G02B13/04
    • An imaging optical system includes a first lens having a concave image side surface and a negative refractive power; a second lens having a convex object side surface and a positive refractive index; a third lens having a concave object side surface and a negative refractive power; a fourth lens having a convex image side surface and a positive refractive power; and a fifth lens having a convex object side surface and a positive refractive power in the order from the object side to the image side, optionally includes a lens on the image side of the fifth lens. The imaging optical system satisfies conditional expressions [1] 1.94 2 2 2 and n 2 represents an Abbe number and a refractive index of a lens material of the second lens L2 at d-line, respectively.
    • 成像光学系统包括:具有凹像侧表面和负屈光力的第一透镜; 具有凸面物体侧表面和正折射率的第二透镜; 具有凹面物体侧表面和负屈光力的第三透镜; 第四透镜,具有凸面像侧面和正屈光力; 以及从物侧到像侧依次具有凸面物体侧表面和正屈光力的第五透镜,可选地包括第五透镜的像侧的透镜。 成像光学系统满足条件表达式[1] 1.94 < n 2&lt; n>&lt; 2.20和[2] 15.0 < ν 2 20.0,其中v 2和n 2分别表示第二透镜L2在d线处的透镜材料的阿贝数和折射率。
    • 79. 发明申请
    • INFORMATION PROCESSING APPARATUS, CONFERENCE SYSTEM, AND CONTROL METHOD OF INFORMATION PROCESSING APPARATUS
    • 信息处理装置,会议系统和信息处理装置的控制方法
    • WO2017204024A1
    • 2017-11-30
    • PCT/JP2017/018257
    • 2017-05-15
    • RICOH COMPANY, LTD.GINGAWA, Nobumasa
    • GINGAWA, Nobumasa
    • H04N7/14H04L29/06H04M3/56
    • H04N7/147H04L65/403H04L65/80H04M3/567H04M7/0027
    • An information processing apparatus includes a video data processor, an input display unit, a drawing data processor, a transmitter, and a detector. The video data processor is configured to process video data of a predetermined range output from an imaging unit. The input display unit is configured to display video data and drawing data received from another information processing apparatus to be connected, and receive writing. The drawing data processor is configured to process drawing data written onto the input display unit. The transmitter is configured to transmit, to the other information processing apparatus, the processed video data and the processed drawing data. The detector is configured to detect a writing action onto the input display unit. At least one of the video and drawing data processors changes an amount of the data to be processed amount, depending on the detection of the writing action.
    • 信息处理设备包括视频数据处理器,输入显示单元,绘图数据处理器,发射器和检测器。 视频数据处理器被配置为处理从成像单元输出的预定范围的视频数据。 输入显示单元被配置为显示从另一个待连接的信息处理设备接收的视频数据和绘图数据,并接收书写。 绘图数据处理器被配置为处理写入到输入显示单元上的绘图数据。 发送器被配置为向另一个信息处理装置发送处理后的视频数据和处理后的绘图数据。 检测器被配置为检测到输入显示单元上的写入动作。 根据对写入动作的检测,视频和绘图数据处理器中的至少一个改变要处理的数据量。