Light collecting device

The utility model relates to a light collecting device. Optical funnels I are integrated to form a light collecting plate, N optical funnels are directly or indirectly connected and communicated with optical funnels II through optical guide tubes, the optical funnels II are communicated with optical funnels III through optical guide tubes, light dissipation parts of N optical guide tubes led out from the optical funnels II can be connected to the optical funnels III, the optical guide tubes led out from the optical funnels III are connected with a light using device or the next optical funnel, and thereby a multi-stage connection or stepped connection is formed. The light collecting device is simple and practical in structure, easy to popularize, wide in using range, and applicable to indoor light guide and indoor and outdoor light guide for solar generating of vehicles, ships, airplanes, spacecraft and the like, and utilization rate of light can be maximized by means of the light collecting device matched wi