Adjustable Light-Delimiting Elements for Sharp Beam Separation
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Solution Overview
Problem
Existing lighting systems with fixed structures struggle to achieve distinct separation between different light effects or color gradients, resulting in unclear division of light beams.
Innovation Solution
A lighting device with adjustable light-delimiting elements that allow for the modification of light beam boundaries between non-parallel light sources, enabling precise control over the separation and sharpness of light effects on adjacent regions of a surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If fixed structures or barn doors are used to delimit light beams, then sharp edges can be created around the light beam, but distinct light separation between different light effects or colors is difficult to obtain
Solution Approach 1:
The patent applies the dynamics principle by making the light-delimiting elements adjustable rather than fixed. The elements can be moved along the optical axis and rotated around it, allowing dynamic control over the position, orientation, and shape of light beam boundaries. This adjustability enables precise control over light separation between different light sources with different spectral power distributions, resolving the contradiction between creating sharp edges and achieving distinct light separation.
2Adaptability or versatility
If multiple individually controllable light sources are used to create color gradients, then lighting versatility is improved, but clear division of light effects is lacking
Solution Approach 1:
The patent applies segmentation by dividing the lighting system into multiple independently controllable light sources, each with its own light-delimiting elements. This allows each light source to be controlled separately to create distinct light effects and color gradients while maintaining clear division between them through individual adjustment of the delimiting elements for each source.
Solution Approach 2:
The patent makes the light-delimiting elements dynamic and adjustable for each light source, enabling precise control over the boundaries of each light beam. This dynamic control allows the system to achieve both versatility in creating different lighting effects and clear division between them, resolving the contradiction between adaptability and precision.
3Device complexity
If fixed structures are used for light delimitation, then device complexity is reduced, but the ability to achieve distinct light separation is compromised
Solution Approach 1:
The patent introduces dynamic adjustability to light-delimiting elements that are relatively simple in structure. The elements can be adjusted along and around the optical axis without requiring complex mechanisms, thus maintaining relative simplicity while achieving precise light separation control.
Solution Approach 2:
The patent achieves distinct light separation by changing the parameters (position and orientation) of relatively simple light-delimiting elements rather than introducing complex structures. By adjusting these parameters, the system can control the boundaries of light beams from multiple sources to achieve clear separation while keeping the device structure simple.
Data Source
AI summary
A lighting device (100) for illuminating a surface (110). The lighting device comprises at least one first light source (120) configured to emit a first light beam (140) in a first direction and at least one second light source (130) configured to emit a second light beam (150) in a second direction that is not parallel to the first direction. The first light beam (140) has a first spectral power distribution, the second light beam (150) has a second spectral power distribution and the second spectral power distribution is different from the first spectral power distribution. The lighting device further comprises at least one light-delimiting element (160) adjustable relative to at least one of the at least one first light source and the at least one second light source. The at least one light-delimiting element is further configured to delimit the first light beam and the second light beam thereby modify an area of overlap on the surface (110) of the first light beam (140) and the second light beam (150) by forming a boundary of the light (170) separating the first light beam and the second light beam, such that the first light source is configured to illuminate at least a first region (180) of the surface, and the second light source is configured to illuminate at least a second region (190) of the surface adjoining the at least one first region of the surface.