CAJ | 학술논문

在大视场小体积的人造复眼结构中，倾斜的边缘子眼成像时存在较大的轴外像差。提出一种复眼结构，利用光线在子眼中的折转与自由曲面矫正像差，提高了边缘子眼的成像质量，进而增大了复眼结构的视场角。设计出5组子眼对180°视场成像，每组对应特定的视场范围。利用光学仿真软件CodeV对5组子眼分别做了光学仿真，得到了各组子眼的像差曲线，光学传递函数 MTF 曲线。结果表明，在整个180°视场范围内，频率为100 lp/mm时，MTF值均大于0.2，畸变在30%以内，复眼具有良好的成像质量。
재대시장소체적적인조복안결구중，경사적변연자안성상시존재교대적축외상차。제출일충복안결구，이용광선재자안중적절전여자유곡면교정상차，제고료변연자안적성상질량，진이증대료복안결구적시장각。설계출5조자안대180°시장성상，매조대응특정적시장범위。이용광학방진연건CodeV대5조자안분별주료광학방진，득도료각조자안적상차곡선，광학전체함수 MTF 곡선。결과표명，재정개180°시장범위내，빈솔위100 lp/mm시，MTF치균대우0.2，기변재30%이내，복안구유량호적성상질량。
The ommatidia arranged at the edge have great off-axis aberrations in artificial compound eye structure with wide Field of View (FOV) and small volume. A new compound eye structure is presented, where the ommatidia are designed as freeform prisms. With the light passing through the freeform surface and folding in the ommatidium, the off-axis aberrations are well corrected. Therefore, the image quality of the ommatidia arranged at the edge is improved, and the FOV of the structure is enlarged. To image 180° FOV, this structure contains 5 groups of ommatidia with a particular FOV correspondingly. The model of each group is designed and the ray trace is completed based on the optical simulation software codeV. The results demonstrate that the compound eyes structure has high image quality for the entire 180° FOV. On the one hand, the modulation transformation function MTF is greater than 0.2 at the frequency of 100lp/mm, and on the other hand, the distortion is less than 30%.