专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06853504B2 Camera lens system for image pickup devices 有权
标题翻译：相机镜头系统用于图像拾取设备
公开(公告)号：US06853504B2
公开(公告)日：2005-02-08
申请号：US10665758
申请日：2003-09-19
申请人： Yong-Joo Jo , Tae-Jun Seo , Jong-Cheol Park , Jang-Ho Lim
发明人： Yong-Joo Jo , Tae-Jun Seo , Jong-Cheol Park , Jang-Ho Lim
IPC分类号： G02B3/00 , G02B13/00 , G02B9/04 , H04N5/225 , G02B18/18
CPC分类号： G02B13/003
摘要： The present invention relates generally to a camera lens system for image pickup devices, which is mounted in a mobile phone or personal digital assistant, and more particularly to a camera lens system for image pickup devices, which has a minimized overall length thereof to implement a micro lens, and in which lenses are formed to have suitable aspheric coefficients to reduce an incident angle of light on the lenses and improve the resolving power of the camera lens system. The camera lens system includes a first group lens having a convex, aspheric surface facing an object, a second group lens on which a light beam is incident from the first group lens and which is formed in an aspheric shape, an iris disposed at a side of the first group lens close to the object, a filter disposed at a side of the second group lens close to an image of the object, and an image sensor for converting the image formed through the first and second group lenses into an electrical signal. The camera lens system satisfies the conditions in which a focal length f1 of the first group lens is within a range of 4.7≦f1≦4.9, a focal length f2 of the second group lens is within a range of 23≦f2≦24, an overall focal length f of the camera lens system is within a range of 3.8≦f≦4.0, and the overall length of the camera lens system is equal to or less than 4.9 mm.
摘要翻译：本发明一般涉及一种用于图像拾取装置的相机透镜系统，其安装在移动电话或个人数字助理中，更具体地涉及用于图像拾取装置的相机透镜系统，其具有最小化的总长度以实现微透镜，并且其中透镜被形成为具有合适的非球面系数以减少透镜上的光的入射角度并提高相机透镜系统的分辨率。相机透镜系统包括具有朝向物体的凸形非球面的第一组透镜，第二组透镜，光束从第一组透镜入射并且形成为非球面形状，设置在一侧的光圈靠近物体的第一组透镜的滤光器，靠近物体的图像的第二组透镜的一侧的滤光器，以及用于将通过第一组透镜和第二组透镜形成的图像转换为电信号的图像传感器。相机透镜系统满足第一组透镜的焦距f1在4.7 <= F1 <= 4.9的范围内的条件，第二组透镜的焦距f2在23 <= F2 < = 24，相机透镜系统的整体焦距f在3.8 <= f <= 4.0的范围内，并且相机透镜系统的总长度等于或小于4.9mm。

2. 发明授权

US06844989B1 Lens system installed in mobile communication terminal 有权
标题翻译：镜头系统安装在移动通信终端
公开(公告)号：US06844989B1
公开(公告)日：2005-01-18
申请号：US10761453
申请日：2004-01-21
申请人： Yong-Joo Jo , Young-Jun Kim , Chan-Soo Kim
发明人： Yong-Joo Jo , Young-Jun Kim , Chan-Soo Kim
IPC分类号： H04B1/40 , G02B13/00 , G02B15/14 , G02B9/00 , G02B9/36 , G02B13/18 , G02B17/00
CPC分类号： G02B13/0035
摘要： Disclosed is a lens system installed in a mobile communication terminal, comprising: a first lens including at least one aspherical plane and having a positive refractivity; a perforated iris separated from the first lens by a designated distance for preventing unnecessary incident light from being incident onto an optical system; a second lens separated from the perforated iris by a designated distance, including at least one aspherical plane and having a positive refractivity; and a third lens separated from the second lens by a designated distance, including at least one aspherical plane and having a negative refractivity, wherein the first lens, the perforated iris, the second lens and the third lens are arranged sequentially from a subject, and the perforated iris is located between the first lens and the second lens.
摘要翻译：公开了一种安装在移动通信终端中的透镜系统，包括：包括至少一个非球面并具有正折射率的第一透镜; 一个从第一透镜分开指定距离的穿孔光圈，用于防止不必要的入射光入射到光学系统上; 与穿孔光圈分开指定距离的第二透镜，包括至少一个非球面并具有正折射率; 以及第三透镜，与所述第二透镜分开指定的距离，包括至少一个非球面并具有负折射率，其中所述第一透镜，所述穿孔光圈，所述第二透镜和所述第三透镜从被摄体顺序排列，以及穿孔光圈位于第一透镜和第二透镜之间。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式