Vehicle Projector Light Curved Reflector Axial Dimension
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle-mounted projector lights face challenges due to their large axial dimension, which limits their installation on vehicles with insufficient vertical space, resulting in reduced luminous brightness, clarity, and fidelity of the projected pattern.
Innovation Solution
A small-sized vehicle-mounted projector light system is designed with an illuminating module and an imaging module, featuring a curved reflector with positive focal power and a reduced number of lenses, allowing for space-efficient installation and improved projection quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a conventional projector light system with coaxial arrangement of light source, collimating lens, film and projection lens group is used, then the projection function is achieved, but the axial dimension becomes large occupying excessive vertical space
Solution Approach 1:
The patent introduces a curved reflector to change the light path from a linear axial arrangement to a folded optical path. The light reflects off the curved reflector surface, allowing the optical components to be arranged in a more compact configuration that reduces the axial dimension while maintaining projection functionality. This dimensional reorganization of the optical path enables space-efficient installation on vehicle surfaces.
Solution Approach 2:
The patent employs a curved reflector with a specific curvature design to focus and redirect light. The curved surface of the reflector concentrates light rays onto the film and projection lens group, achieving effective projection while reducing the overall axial length of the system. The curvature enables compact arrangement of optical components without compromising projection quality.
2Manufacturing precision
If the projector light is arranged to illuminate the ground vertically with optical axis perpendicular to ground, then clear image projection is achieved, but large vertical space is occupied which is not available in vehicle structures
Solution Approach 1:
The curved reflector folds the optical path, allowing the light to traverse a longer effective distance for clear projection while occupying less vertical space. The reflected light path creates a compact arrangement that maintains projection clarity without requiring the optical axis to extend vertically perpendicular to the ground.
Solution Approach 2:
The optical system is segmented into distinct functional modules: light source, collimating lens, film, curved reflector, and projection lens group. This segmentation allows each component to be optimized for its specific function while arranging them in a compact configuration that reduces overall vertical dimension. The modular arrangement enables clear projection without excessive vertical space occupation.
3Ease of operation
If the projector light system is shrunk to fit limited vertical space, then installation convenience is improved, but projection efficiency and performance deteriorate
Solution Approach 1:
The curved reflector concentrates light rays efficiently onto the film and projection lens group, maintaining high projection efficiency in a compact form. The curvature optimizes light gathering and focusing, ensuring that even in the reduced vertical space, the projection luminous brightness, clarity and fidelity are preserved.
Solution Approach 2:
The patent optimizes key parameters including the curvature radius of the reflector, focal lengths of lenses, and spacing between components to achieve compact dimensions without sacrificing projection performance. By carefully adjusting these parameters, the system maintains high projection efficiency while fitting within limited vehicle installation spaces.
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 system enables compact installation on vehicles while maintaining high projection quality and reducing the volume and weight of the projector light system, enhancing its convenience and effectiveness.
Implementation Method 1
The imaging module includes a curved reflector and a first imaging lens, and the curved reflector is a concave mirror with positive focal power
Implementation Method 2
the curved reflector has positive focal power and can perfect focusing
Data Source
AI summary
A small-sized vehicle-mounted projector light system including an illuminating module having a light source, a collimating lens and a film arranged in sequence, and an imaging module; the imaging module includes a curved reflector being a concave mirror with positive focal power, and a first imaging lens. The main optical axis of the illuminating module passes through the reflective surface of the curved reflector, on one side of which the first imaging lens is positioned. The invention ensures an appropriate size of an one-way dimension, no consequence of the limited space within automobile structure during installation and design, and conveniency for arrangement; the curved reflector has positive focal power and can perfect focusing, not only ensuring good projection effect, but also decreasing the number of lenses with positive focal power in the system, and effectively reduce the volume and weight of the system.