Kaleidoscopic laser beam projection system
US12416804B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2025 |
| Grant date | Sep 16, 2025 |
| Priority date | — |
| Expiry date | May 8, 2045 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B30/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A kaleidoscopic laser beam projector (KLBP) system that employs a single moving structure to project patterns of sweeping laser beams with diverse sweep directions and emission apertures. The system comprises a collimated light source, a spinning mirror deflector (“spindle/flutter mirror”) at the center, and a stationary kaleidoscopic mirror containing multiple facet mirrors arranged in a concave fashion around the spindle mirror. As the spindle mirror rotates, it directs laser beams in a radially whirling movement toward the facet mirrors, which then subdivide these beams into multiple short strokes and redirect them outward in different directions. Various embodiments include configurations with diffractive optical elements (DOEs) for beam splitting, different kaleidoscopic mirror geometries (hexagonal, octagonal, etc.), and innovative flutter mirror mechanisms that create controlled angular variations during rotation. The system enables a “4×1” configuration that replaces traditional “4×4” systems requiring eight motors and multiple moving structures. The KLBP system offers significant advantages including mechanical simplicity, reduced size and weight, improved energy efficienc…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.