Compact system for registering papillary ridge patterns

The invention relates to the field of biometric identification. The technical result consists in decreasing the overall dimensions and increasing the reliability of a system for registering papillary ridge patterns, while providing for reduced cost, high image quality, rapid operating speed and reduced energy consumption. The present system comprises a light source, an element which defines the position of a reading surface, an optical system, and a multi-element image receiver, wherein the reading surface is optically linked to the image receiver by rays passing through a guiding optical element, comprising a refractive surface and a reflective surface, by means of consecutive refraction on the refractive surface, reflection on the reflective surface and total internal reflection on the refractive surface. 本发明涉及到生物计量识别领域。技术结果在于减少用于登记乳头状脊图案的系统的总尺寸和增加该系统的可靠性，同时提供减少的成本、高图像质量、快速的运行速度和减少的能源消耗。本系统包括：光源、定义读取表面的位置的元件、光学系统以及多元件图像接收器，其中读取表面由通过引导性光学元件的射线被光学地链接至图像接收器，引导性光学元件包括折射表面和反射表面，其凭借折射表面上的连续折射、反射表面上的反射和折射表面上的全内反射。