Invention Grant
- Patent Title: Electron beam pumped laser light source for projection television
- Patent Title (中): 投影电视用电子束泵浦激光光源
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Application No.: US11041839Application Date: 2005-01-24
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Publication No.: US07309953B2Publication Date: 2007-12-18
- Inventor: Michael D. Tiberi , Vladimir I. Kozlovsky
- Applicant: Michael D. Tiberi , Vladimir I. Kozlovsky
- Applicant Address: US CA Woodland Hills
- Assignee: Principia Lightworks, Inc.
- Current Assignee: Principia Lightworks, Inc.
- Current Assignee Address: US CA Woodland Hills
- Agency: Chen Yoshimura LLP
- Main IPC: H01J29/46
- IPC: H01J29/46 ; H01J31/00

Abstract:
An electron beam pumped laser including a surface-emitting laser faceplate oriented at a non-perpendicular angle. Embodiments are described in which a bending coil bends the electron beam, or in which the faceplate is situated in the direct path of the e-beam emission but with a non-zero orientation angle. The faceplate may include a substantially opaque substrate, and an opaque heat-removing structure may be attached to the substrate to provide high heat transfer, thereby allowing high electron-beam pumping intensity and providing more light emission from a smaller package. In some embodiments the partially reflective mirror comprises a metal layer that has a plurality of openings. Multiple laser faceplates (e.g., red, green, and blue) may be placed in the same tube, to provide a continuous light source for projection television. The substrate may be connected to ground to provide an exit path for electrons from the laser gain layer.
Public/Granted literature
- US20060163998A1 Electron beam pumped laser light source for projection television Public/Granted day:2006-07-27
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