| 摘要 |
A panoramic image acquisition device comprises a catadioptric lens group (210) and a photosensitive module (220). The catadioptric lens group has a reflecting surface (211) and at least one refractive surface (212, 313, 214) configured to converge incident light. The reflecting surface is disposed behind all of the refractive surfaces along a light incidence direction, such that incident light passes through all of the refractive surfaces, is reflected, passes through all of the refractive surfaces again, and is emitted. The photosensitive module is configured to sense convergent light that has passed through the catadioptric lens group. Since present invention employs the catadioptric lens group combining the refractive surface and the reflecting surface to collect incident light, a converging effect of the refractive surface cooperating with the reflecting surface can be enhanced exponentially. The present invention greatly improves the capacity of a photosensitive module to acquire light with the same reflecting lens area, facilitates obtaining a clear image, and increases resolution. |
