Star Projector Light Generation Using Lined Condensing TIR Lens
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Solution Overview
Problem
Existing star projection devices are complex, costly, and offer poor user experience due to large size, low light utilization efficiency, and limited portability, with high production costs and complex assembly processes.
Innovation Solution
A star projection device comprising a pedestal, imaging lens, lined condensing total internal reflection lens, drive motor, and star projector, where the lined condensing total internal reflection lens with patterns refracts and reflects light beams to form nebula projections, and the drive motor rotates the lens for dynamic effects, reducing device size and cost while enhancing user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple layers of lenses and refraction sheets are used to achieve star projection effects, then the projection quality is improved, but the device size and production cost increase significantly
Solution Approach 1:
The patent extracts and eliminates unnecessary intermediate components (multiple lenses and refraction sheets) from the optical path, retaining only the essential elements (light source and projection lens) to achieve star projection effects while simplifying the overall device structure and reducing production costs
Solution Approach 2:
The patent merges multiple optical functions into a single projection lens, combining the functions of light condensation, focusing, and pattern projection that were previously distributed across multiple separate components, thereby reducing device complexity while maintaining projection quality
2Illumination intensity
If the light source brightness is increased to improve user experience, then the projection brightness is improved, but the device size and power consumption increase
Solution Approach 1:
The patent replaces mechanical/physical enlargement of the light source with optical optimization through lens design, using the projection lens to concentrate and direct light efficiently, achieving high brightness without increasing light source size or power consumption
Solution Approach 2:
The patent changes the optical parameters (focal length, aperture, curvature) of the projection lens to optimize light concentration and projection brightness, achieving enhanced illumination intensity without physically enlarging the device or increasing power consumption
3Adaptability or versatility
If refraction sheets driven by motors are used to create moving nebula effects, then the dynamic projection effects are improved, but the device complexity and size increase
Solution Approach 1:
The patent introduces dynamic capability to the projection system by enabling rotation of the projection lens, allowing the static optical components to produce moving nebula effects through rotational motion, thereby achieving adaptability without adding complex motorized refraction sheet mechanisms
Solution Approach 2:
The projection lens serves multiple functions: it projects star patterns, creates nebula effects, and enables dynamic motion through rotation, eliminating the need for separate motorized refraction sheets and reducing overall device complexity while maintaining versatility
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 significantly reduces device volume and production costs, allows for larger projection areas, and improves user experience by enabling more compact and efficient star projection with enhanced dynamic effects.
Implementation Method 1
the lined condensing total internal reflection lens refracts and reflects the light beams to the pedestal through the lines and patterns on the lined condensing total internal reflection lens
Implementation Method 2
the lined condensing total internal reflection lens refracts and reflects the light beams
Data Source
AI summary
A light generation device having a pedestal, an imaging lens, and at least one light source generator, wherein the light source generator generates light beams, the light beams are irradiated into a lined condensing total internal reflection lens, the lined condensing total internal reflection lens reflects and diffracts the light beams to the imaging lens via lines and patterns on the lined condensing total internal reflection lens, and nebula projection patterns are formed; the device further comprising a drive motor and a star projector, the drive motor is provided at a side of the lined condensing total internal reflection lens and an output end of the drive motor is connected with an outer side of the lined condensing total internal reflection lens, the lined condensing total internal reflection lens reflects diffracted lights to the pedestal during rotation and dynamic nebula projection effects are formed.