| 摘要 |
An integrated laser-based light source (300, 320, 340, 350, 500), which generates an output light beam (119) having a controlled intensity, comprises a light sensor (111, 351), a laser (101), a convex beam-splitting surface (345, 545), and a package (105, 501) that includes a header (103). The light sensor generates an electrical signal representing an intensity of light energy falling on it, and is mounted on the header. The laser has one and only one light-emitting face (109) from which a light beam is radiated as a radiated light beam (107). The laser is mounted in the package adjacent the light sensor with the light-emitting face substantially parallel to the light-receiving face of the light sensor. The convex beam-splitting surface reflects a fraction of the radiated light beam towards the light sensor as a reflected light beam, and transmits the remainder of the radiated light beam as the output light beam. The convex beam-splitting surface is supported in the radiated light beam by the package. <IMAGE> |
