Multi-Lens Optical System for Linear Lighting Beam Control
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Solution Overview
Problem
Current systems for controlling the light output of LED linear lighting are rudimentary and do not effectively manage the natural beam width and light-emitting characteristics, which are not suitable for all applications.
Innovation Solution
The use of multiple lenses, specifically a first lens positioned close to the linear lighting and a second lens farther away, optically aligned to control the light output, with varying lens types and configurations that include refractive and diffusing properties to mix light, supported by a platform and channel structure, allowing for beam control and uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single lens is used to control light output, then the system is simple, but beam control precision and light uniformity are insufficient
Solution Approach 1:
The optical system is divided into two separate lenses: a first lens positioned close to the linear lighting and a second lens positioned farther away. This segmentation allows each lens to perform a specific function in the light control sequence, achieving precise beam control that cannot be accomplished with a single lens while maintaining manageable system complexity through modular design.
Solution Approach 2:
The patent introduces a spatial dimension by positioning lenses at different distances from the light source along the optical axis. The first lens is placed close to the linear lighting while the second lens is placed farther away, creating a multi-stage optical path that enables progressive control of beam characteristics and improves light uniformity.
2Adaptability or versatility
If the natural beam width of 120°-130° is used, then no additional optical components are needed, but the beam is not suitable for applications requiring narrower or modified beam patterns
Solution Approach 1:
The optical system provides dynamic beam control by using two lenses with different optical properties positioned at different distances from the light source. This configuration allows the system to adaptively control beam width and light distribution patterns, transforming the fixed natural beam into a versatile, controllable light output suitable for various applications.
Solution Approach 2:
The patent changes key optical parameters by introducing lenses with specific focal lengths, refractive indices, and positions. The first lens modifies the natural beam parameters, and the second lens further adjusts the beam characteristics, enabling transformation from a fixed 120°-130° beam to customized beam patterns with different widths and uniformity characteristics.
3Measurement precision
If multiple lenses are added to control beam width and uniformity, then beam control precision improves, but the profile size of the finished product increases
Solution Approach 1:
The two lenses are arranged in a nested configuration where the first lens is positioned close to the linear lighting and the second lens is positioned farther away along the optical axis. This nested arrangement allows the optical components to be compactly integrated into the existing channel structure, minimizing the overall profile length while maintaining precise beam control capabilities.
4Ease of manufacture
If existing channels are retrofitted with new optical systems, then compatibility with existing infrastructure is maintained, but redesigning channel components would enable optimized optical performance
Solution Approach 1:
The optical system designed according to this patent can serve multiple functions: it can be installed in existing channels for retrofit applications, and it can also be integrated into newly designed channels for optimized performance. The modular lens configuration allows the system to adapt to different channel types and requirements, providing universal applicability across various installation scenarios.
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
This optical system provides more precise control over the light beam, reducing the profile of the finished product and enabling retrofitting to existing channels without redesigning the channel components, achieving a narrower or modified light beam as needed.
Implementation Method 1
The first lens may be plano-convex, for example, while the second lens may be bi-convex. Two lenses may, e.g., form an Abbe condenser.
Implementation Method 2
The first lens may be plano-convex, for example, while the second lens may be bi-convex.
Implementation Method 3
In addition to their refractive properties, either or both of the two lenses may include diffusing properties, in order to mix light. For example, one surface of the first lens may have diffusing properties in order to mix light as close to the source as possible.
Data Source
AI summary
Optical systems for linear lighting, particularly linear lighting that is installed in a channel, are disclosed, as are light fixtures that use these optical systems. The optical systems have multiple lenses, usually a first lens adapted to be positioned close to a strip of linear lighting installed in a channel, and a second lens adapted to be positioned farther from the strip of linear lighting. The two lenses are optically aligned with one another such that light from the first lens reaches the second lens. The two lenses may, e.g., form an Abbe condenser lens system. In some embodiments, diffusing features may be integrated into one or both lenses to effect light mixing. The multiple lenses may be adapted to physically support one another, and to engage with structure provided by the channel for securing a cover.