Document Detail

Analysis and design of wedge projection display system based on ray retracing method.
MedLine Citation:
PMID:  23759844     Owner:  NLM     Status:  In-Data-Review    
A design method for the wedge projection display system based on the ray retracing method is proposed. To analyze the principle of image formation on the inclined surface of the wedge-shaped waveguide, the bundle of rays is retraced from an imaging point on the inclined surface to the aperture of the waveguide. In consequence of ray retracing, we obtain the incident conditions of the ray, such as the position and the angle at the aperture, which provide clues for image formation. To illuminate the image formation, the concept of the equivalent imaging point is proposed, which is the intersection where the incident rays are extended over the space regardless of the refraction and reflection in the waveguide. Since the initial value of the rays arriving at the equivalent imaging point corresponds to that of the rays converging into the imaging point on the inclined surface, the image formation can be visualized by calculating the equivalent imaging point over the entire inclined surface. Then, we can find image characteristics, such as their size and position, and their degree of blur-by analyzing the distribution of the equivalent imaging point-and design the optimized wedge projection system by attaching the prism structure at the aperture. The simulation results show the feasibility of the ray retracing analysis and characterize the numerical relation between the waveguide parameters and the aperture structure for on-axis configuration. The experimental results verify the designed system based on the proposed method.
Chang-Kun Lee; Taewon Lee; Hyunsik Sung; Sung-Wook Min
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Applied optics     Volume:  52     ISSN:  1539-4522     ISO Abbreviation:  Appl Opt     Publication Date:  2013 Jun 
Date Detail:
Created Date:  2013-06-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0247660     Medline TA:  Appl Opt     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3964-76     Citation Subset:  IM    
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