ZHENG Wei, LIN Feng. Application of Q-type Asphere in the Design of Super Short-focus Panoramic Lens[J]. Acta Photonica Sinica, 2012, 41(11): 1317
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The Q-type novel aspherical polynomials and its advantages are introduced in the aspect of algorithm, fabrication and manufacturing relative to the traditional aspherical polynomial-based aspheres. The Q-type formulation is applied to design a panoramic lens based on the relationship of super short-focus panoramic lens′ focus and resolution. The designed panoramic lens′ focus is 0.657 mm and ratio of focus and image height is less than 0.184, which includes 4 aspheric surface. This result shows that the spatial pixel of scenic circle area with half vertical field 45°~90° is up to 1.163 7 mm/(°), and the modulation transformation function is greater than 0.3 at the spatial frequency of 227 lp/mm. The result demonstrates the Q-type formulations is certain advantages in super short-focus panoramic lens.