Visual Inspection Of The Projection Optical System Design Study

Eyes is an important, precision optical organs, it has to face up to, of myopia and hyperopia points, wearing glasses can be effectively corrected visual acuity. People who wear glasses in our country there are about 400 million or so each year the number of people wearing glasses is rising, which makes the position of glasses in people's lives become increasingly important, glasses depends on the degree of accuracy the accuracy of visual inspection. Visual projection optical system can form fine portrait of the visual projection to the distance from the location, with fine features such as flexible.To resolve the issue of papers is mainly visual inspection of the projection optical system design. On the characteristics of the standard vision chart analysis based on the calculation to determine the dimensions of the projection lens magnification, focal length, depending on market location and access requirements Hitomi, optical measurement by projection lens group lighting requirements to determine the technical requirements. ZEMAX software applications, the establishment of a default assessment and evaluation of a combination of aberration characteristics of the evaluation function, the design of the 30 times magnification, projection distance of 5 meters, 160 mm focal length projection lens, the MTF Department 201p/mm value of spatial frequency to reach 0. 2; using Kohler illumination program, designed the structure of a simple condenser lighting group.