Virtual Magnifier-Based Image Resolution Enhancement

Imaging Model

In the optics, the trace of a ray of light is a straight line. When the ray passes through a medium, the rule of the refraction is followed by the Snell's Law (Jenkins & White, 1976; Meyer-Arendt, 1989; Pedrotti & Pedrotti, 1987) and the Snell's Law is defined below.

• Law of Refraction (Snell's Law) (Pedrotti & Pedrotti, 1987). When a ray of light is refracted at an in and denote the incident angle and the refraction angle, respectively, and denote the two media with refractive indices. Figure 1 shows a ray of light passing from medium into a optically denser medium , where N is a normal line. According to the Snell's Law, an object M with height h is located at the left side of the lens and passes through the lens, then the imaging object with height is formed on the right side of the lens (See Figure 2). In Figure 2, and denote the left spherical surface and the right spherical surface of the lens, respectively.