首页>
外国专利>
A Guidance Contrivance for focus of the Iris Camera
A Guidance Contrivance for focus of the Iris Camera
展开▼
机译：虹膜相机对焦的指导创新
展开▼
页面导航
摘要
著录项
相似文献
摘要
An object of the present invention is to provide a user with an iris photographing camera to focus the iris quickly and conveniently.;In order to achieve the object of the present invention, the ring lamp (1a) and the reflecting plate (2a) between the camera lens and the outer ring lamp is installed on the outside of the camera lens 11, so the user has a ring-shaped reflected on the reflecting plate Seeing the sharpness of light led to focus.;The light path 100 has the light emitted from the ring lamp as the primary reflection 200 in the pupil of the iris, and then the reflected light of the pupil is reflected in the reflector of the reflector between the camera lens and the ring lamp 300. After passing through the lens it reaches the retina (3c).;In addition, since the reflector is composed of a convex lens (2b) and a mirror (2a) it is designed to guide the focal length accurately by configuring the ring-shaped light to be clearly visible only when the user is in focus.
展开▼
