Rotating Projection Head Light Guide System
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Solution Overview
Problem
Existing projection devices with compact housings face challenges in configuration and orientation, as they require complex light guidance systems and limited adjustability for emitting mixed light with defined color characteristics.
Innovation Solution
A projection device design featuring a rotatable support and projection head with a light guide system that includes wavelength-converting luminophores, allowing for simple light configuration and orientation, using a base for fastening and a light interface for external light infeed, and incorporating optical elements like dichroic mirrors and micromirrors to minimize light loss and adjust spectral components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a compact housing is used for the projection device, then the device size is reduced, but the configuration and orientation become more complex
Solution Approach 1:
The projection device is divided into three main segments: base, support, and projection head. Each segment can be independently configured and assembled. The support segment is further divided into rotatable sections that allow independent orientation adjustment, simplifying the overall configuration process while maintaining compact dimensions.
Solution Approach 2:
The support and projection head are designed with rotatable connections, allowing dynamic adjustment of the projection head's orientation in three-dimensional space. This dynamic capability enables simple configuration through rotational movement rather than complex fixed mechanical arrangements, while the compact housing maintains a small form factor.
2Reliability
If a light guide system is implemented to guide light to the projection head, then light guidance is achieved, but the system complexity increases
Solution Approach 1:
The support segment serves multiple functions: it acts as a structural connector between base and projection head, provides a mounting platform for the light guide system, and enables rotational adjustment. This multi-functionality reduces the need for separate dedicated light guidance components, simplifying the overall system while maintaining reliable light transmission.
Solution Approach 2:
The support segment functions as an intermediary element that receives light from the base and transmits it to the projection head. The light guide system is integrated into the support structure, using the support's rotational capability and structural design to facilitate simple and reliable light guidance without adding complex separate mechanisms.
3Adaptability or versatility
If the projection head is made rotatable for wide-angle orientation, then orientation flexibility is improved, but the device complexity increases
Solution Approach 1:
The projection head is connected to the support through rotatable joints, enabling dynamic repositioning in three-dimensional space. The support itself can rotate relative to the base, and the projection head can rotate relative to the support, creating a simple yet effective rotational system that provides wide-angle orientation without complex mechanical structures.
Solution Approach 2:
The rotational functionality is segmented into two independent rotations: one between the base and support, and another between the support and projection head. This segmentation allows each rotation to be independently controlled and simplified, achieving wide-angle orientation through two simple rotational joints rather than one complex mechanism.
4Illumination intensity
If wavelength-converting luminophores are used to generate mixed light, then color characteristics are improved, but the device complexity increases
Solution Approach 1:
The light guide system, support structure, and luminophores are merged into an integrated projection head assembly. The luminophores are positioned directly within the projection head where they receive light from the light guide system, combining multiple functions into a single compact unit. This integration simplifies the overall device while enabling sophisticated color conversion to generate mixed light with defined color characteristics.
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
Enables easy and economic light guidance, wide-angle orientation of the projection head, and generation of mixed light with a well-defined color location, such as white light, while maintaining a compact and versatile design suitable for various applications.
Implementation Method 1
a wavelength-converting luminophore for converting at least a part of a light beam generated by the at least one light source
Data Source
AI summary
A projection device (1; 24), comprising a base (2), a support (3) and a projection head (4; 27), the support (3) being rotatable relative to the base (2) and relative to the projection head (4; 27) wherein a light guide system (10-18) is accommodated in the support, (3) and at least one wavelength-converting luminophore (22) for converting at least part of a light beam (L) generated by the at least one light source (5) is accommodated in the projection head (4; 27).