Laser Projection Lamp Phosphor Conversion and Dynamic Reflection
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Solution Overview
Problem
Existing laser projection lamps have difficulty producing white laser light with good monochromaticity, as they typically rely on synthesized white light from multiple colors, resulting in poor color output.
Innovation Solution
A novel laser projection lamp combines blue laser light with fluorescent powder and incorporates a driving mechanism and reflecting mechanism, featuring a lens module and micro-lenses to achieve a rotating or static projection of white laser light, with a 30-60 degree included angle between the laser assembly and reflecting mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If white laser light is synthesized from light in multiple colors, then the projection distance and coverage are improved, but the monochromaticity and color quality deteriorate
Solution Approach 1:
The patent changes the fundamental parameter of light generation from synthesis of multiple colors to direct emission of white light through phosphor conversion. By using blue laser excitation of yellow phosphor material, the system achieves white light output with maintained monochromaticity characteristics, resolving the contradiction between projection coverage and color quality
Solution Approach 2:
The patent introduces phosphor material as an intermediary between the blue laser source and the final white light output. The phosphor absorbs blue laser photons and re-emits yellow light, which combines with remaining blue light to form white light, thereby enabling both wide projection coverage and good monochromaticity
2Adaptability or versatility
If a driving mechanism and reflecting mechanism are added to create rotating or static projection effects, then the visual atmosphere and projection effects are improved, but the device complexity increases
Solution Approach 1:
The patent implements a controllable dynamic system where the reflecting mechanism can switch between rotating and static states. The driving mechanism enables the reflector to rotate for dynamic projection effects or remain stationary for stable patterns, providing versatility while allowing simplification when full dynamic capability is not needed
Solution Approach 2:
The reflecting mechanism serves multiple functions: it can rotate to create moving projection patterns, remain static for fixed patterns, and work with the lens module to produce various white spot effects. This multi-functionality justifies the added complexity by providing diverse projection effects from a single integrated mechanism
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables the simple and convenient production of white laser light, creating a good environmental atmosphere with rotating or static white spots, allowing for adjustable projection effects.
Implementation Method 1
the laser assembly is composed of blue laser light and fluorescent powder, and white laser light required by the patent can be formed through the combination method
Implementation Method 2
the reflector is provided with a concave arc-surface reflecting area... the peripheries of the multiple micro-lenses are closely connected and arranged on the surface of the reflecting area in a covering mode
Data Source
AI summary
The patent discloses a novel laser projection lamp which comprises a shell body, a face cover, a base, a connecting rod and a ground insert, wherein base is arranged at the bottom of shell body, connecting rod is movably connected to base, ground insert is movably connected to the bottom of connecting rod, and face cover is arranged on one side of shell body; a driving mechanism, a reflecting mechanism and a laser assembly are further arranged in shell body; the novel laser projection lamp is further provided with a lens module which is arranged in a through hole of the face cover. The patent is simple in structure and convenient to use; white laser light can reflect a plurality of white spots to creat a good environmental atmosphere; and driving mechanism can control white spots rotate or be maintained at specified positions.