Projection Lamp Rotating Optical Sheet Nebula Simulation
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Solution Overview
Problem
Existing projection lamps cannot simulate the movement of stars and nebulae, lack the ability to project realistic nebulae due to their design, and have limited adjustability in projection direction.
Innovation Solution
A projection lamp with a rotating assembly driven by a motor, incorporating a light source and laser assembly that uses frosted glass optical sheets and a diffraction sheet to create a moving nebula and starry sky projection, allowing for adjustable direction and remote control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rotating assembly is added to drive the optical sheet to rotate, then the nebula and starry sky movement simulation is improved, but the device complexity increases
Solution Approach 1:
The patent applies the dynamics principle by introducing a rotating assembly that drives the optical sheet to rotate, transforming the static projection system into a dynamic one. This rotation simulates the natural movement of stars and nebulae in the sky, enhancing the realism of the projection without requiring complex mechanical structures for each moving element.
Solution Approach 2:
The rotating assembly serves multiple functions: it rotates the optical sheet to simulate celestial movement, and through the diffraction sheet, it creates both star and nebula effects. This multi-functionality reduces the need for separate mechanisms for different projection effects, thereby managing device complexity while achieving diverse simulation goals.
2Adaptability or versatility
If the projection direction is made adjustable, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The patent makes the projection direction adjustable by incorporating a rotating assembly that can orient the optical sheet and diffraction sheet in different directions. This dynamic adjustment capability allows the projection lamp to adapt to various installation positions and viewing angles without requiring multiple fixed projection units.
3Device complexity
If the light source assembly and laser assembly are integrated in the housing, then the device complexity is reduced, but the manufacturing precision requirements increase
Solution Approach 1:
The patent merges the light source assembly and laser assembly within a single housing, integrating multiple functional components into one unified structure. This consolidation reduces the overall device complexity and the number of separate mounting requirements, though it necessitates precise internal positioning of optical elements to ensure proper light path alignment.
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
Simulates the movement of nebulae and starry skies with enhanced realism, offers adjustable projection direction, and can be remotely controlled, providing a more immersive and flexible solution compared to traditional projection lamps.
Implementation Method 1
The light reflecting cup is configured to reduce a lighting angle of the light rays emitted by the light source board so as to enable the light rays emitted by the light source board to be projected onto the fixed optical sheet
Implementation Method 2
The fixed optical sheet and the rotating optical sheet are configured to successively scatter the light rays emitted by the light source board so as to enable the light rays scattered by the rotating optical sheet to be projected onto a projection plane to form a projection of the nebula
Implementation Method 3
A laser beam emitted by the laser emitter is configured to pass through the hollow protruding column and the diffraction sheet so as to form a moving projection of stars
Implementation Method 4
A laser beam emitted by the laser emitter is configured to pass through the hollow protruding column and the diffraction sheet so as to form a moving projection of stars
Data Source
AI summary
The present disclosure discloses a projection lamp for projecting a nebula and a starry sky comprising a housing, a light source assembly, a laser assembly, a rotating assembly, a control board, a base seat, and a power source port. The light source assembly and the laser assembly are disposed in the housing and penetrate through the housing, and the rotating assembly and the control board are disposed in the housing. The rotating assembly is configured to drive a rotating optical sheet and a diffraction sheet to rotate. The light source assembly comprises a light source board, a light reflecting cup, a fixed optical sheet, the rotating optical sheet, and a lens assembly. The light source board, the light reflecting cup, the fixed optical sheet, the rotating optical sheet, and the lens assembly are successively disposed along a path in which light rays emitted by the light source board move.