公开(公告)号：US20130250440A1

公开(公告)日：2013-09-26

申请号：US13789958

申请日：2013-03-08

Applicant: OLYMPUS CORPORATION

Inventor： Ryu OTA

IPC: G02B13/00

CPC classification number: G02B13/004

Abstract: An image pickup optical system comprises in order from an object side, a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a positive refractive power, and a fourth lens having a negative refractive power. The first lens has a biconvex shape. An image-side surface of the second lens has a shape such that, a concave surface is directed toward an image side. At least an image-side surface of the third lens has a shape such that, a convex surface is directed toward the image side. An aperture is disposed nearest to the object side, and the following conditional expression (1)is satisfied. 0.9

Abstract translation: 摄像光学系统从物体侧起依次包括具有正折光力的第一透镜，具有负折光力的第二透镜，具有正折光力的第三透镜和具有负折光力的第四透镜。 第一透镜具有双凸形状。 第二透镜的像侧表面具有凹面朝向像侧的形状。 至少第三透镜的图像侧表面具有凸形表面朝向图像侧的形状。 孔径最靠近物体侧设置，满足以下条件式（1）。 0.9

公开(公告)号：US20170285278A1

公开(公告)日：2017-10-05

申请号：US15630656

申请日：2017-06-22

Applicant: OLYMPUS CORPORATION

Inventor： Ryu OTA

IPC: G02B6/38 ,  G02B23/26 ,  G02B6/32

CPC classification number: G02B6/3885 ,  G02B6/264 ,  G02B6/32 ,  G02B23/26

Abstract: An optical transmission connector device includes: a transmission-side connector sending optical signals; and a reception-side connector receiving the optical signals sent from the transmission-side connector. The transmission-side and the reception-side connectors have: optical fibers transmitting optical signals; and optical members disposed in contact with or in the vicinity of one end surfaces of the optical fibers. The optical member of the transmission-side connector is formed so as to convert the optical signals emitted from the one end surfaces of the optical fibers into approximately parallel beams of light and so as to cause the centers of light beams of the approximately parallel beams of light to intersect at approximately one point. The optical member of the reception-side connector is formed so as to cause the optical signals converted into the approximately parallel beams of light at the optical member of the transmission-side connector to enter the separate optical fibers.

公开(公告)号：US20130258130A1

公开(公告)日：2013-10-03

申请号：US13627275

申请日：2012-09-26

Applicant: OLYMPUS CORPORATION

Inventor： Shinichi MIHARA ,  Ryu OTA

IPC: G02B15/14 ,  H04N5/232

CPC classification number: G02B15/14 ,  G02B15/17 ,  G02B15/173 ,  H04N5/23229

Abstract: A zoom lens includes in order from an object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a negative refractive power, a fourth lens group having a positive refractive power, a fifth lens group having a positive refractive power, and a last lens group having a positive refractive power. At the time of zooming from a wide angle end to a telephoto end, the second lens group and the third lens group move, and one of the fourth lens group, the fifth lens group, and the last lens group moves.

Abstract translation: 变焦透镜从物体侧依次包括具有正折光力的第一透镜组，具有负屈光力的第二透镜组，具有负折光力的第三透镜组，具有正折光力的第四透镜组 具有正屈光力的第五透镜组和具有正屈光力的最后透镜组。 在从广角端到长焦端的变焦时，第二透镜组和第三透镜组移动，并且第四透镜组，第五透镜组和最后一个透镜组中的一个移动。