| 主权项 |
1. A light collection system, comprising:
a light concentrating device, for receiving a portion of an incident light and forwardly emitting the portion of the incident light after concentrating and passing the portion of the incident light through a first focal region, so as to obtain a first-stage output light, wherein the light concentrating device has a reduced exit aperture and the first focal region is within the reduced exit aperture; a reflective curving-surface device, having an entrance aperture for receiving the first-stage output light, wherein the reflective curving-surface device comprises:
a reflective inner curving surface having a second focal region, wherein the first focal region and the second focal region are confocal or approximately confocal within a range so that a portion of the first-stage output light is confocally converted into a second-stage output light being forwardly emitted; andan exit aperture, configured to transmit the second-stage output light toward a target area where the second-stage output light is received; and a bonding structure, as a ring-like structure, wherein the bonding structure has an outer peripheral edge to join with the reduced exit aperture of the light concentrating device and an inner peripheral edge to join with the entrance aperture of the reflective curving-surface device, wherein the light concentrating device also comprises a lens focusing element at a central region, over the bonding structure, to receive a central-portion light of the incident light, not concentrated by the light concentrating device, as a central concentrated light, the central concentrated light is incident onto the target area, wherein the central-portion light concentrated by the lens focusing element at the central region is first passed through the first focal region before divergently reaching the target area. |
