Lighting Module Lens Alignment for Compact Parallel Emission
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Solution Overview
Problem
Existing lighting devices and modules with multiple LED elements and lenses face challenges in design convenience and efficiency, particularly in ensuring parallel light emission and compact module integration.
Innovation Solution
A lighting module design featuring a substrate, light source, first and second lenses, and holders that fix the substrate and lenses, ensuring parallel light emission and compact integration by minimizing protrusions, allowing for easy assembly and arrangement of multiple modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If multiple LED elements and lenses are used to achieve parallel light emission, then lighting performance is improved, but device complexity increases
Solution Approach 1:
The lighting module is segmented into distinct functional components: substrate for mounting LED elements, individual lenses for each LED, and holders for precise positioning. This segmentation allows each component to be optimized independently while maintaining overall system performance for parallel light emission.
Solution Approach 2:
The holder structure serves multiple functions simultaneously: it positions the substrate, supports the lenses, maintains precise alignment between LEDs and lenses, and enables modular assembly. This multi-functionality reduces the need for additional separate components, managing device complexity.
2Manufacturing precision
If lenses are fixed with protruding holders to ensure stable positioning, then positioning precision is improved, but compact integration deteriorates
Solution Approach 1:
The holder structure is designed to nest within or alongside the lens assembly, with the lens positioned on the holder such that the holder does not protrude beyond the lens outer peripheral surface. This nesting approach maintains precise positioning while minimizing the overall module volume for compact integration.
Solution Approach 2:
The holder provides precise positioning support specifically where needed (at the lens mounting location) while minimizing its extent in other directions. The holder is configured to extend only as far as necessary to secure the lens, avoiding unnecessary protrusions that would increase module volume.
3Area of stationary object
If multiple lighting modules are arranged closely for compact device integration, then space efficiency is improved, but assembly difficulty increases
Solution Approach 1:
The lighting device is divided into multiple independent lighting modules that can be manufactured and tested separately, then assembled in arrays. Each module is a self-contained unit with standardized interfaces, enabling close arrangement while simplifying assembly through modular construction rather than complex integrated assembly.
Solution Approach 2:
Multiple lighting modules are combined into arrays using standardized mounting structures, allowing compact integration while maintaining ease of assembly. The modules can be attached to common support structures or directly to each other in systematic patterns, facilitating efficient manufacturing and installation.
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 design provides a convenient and efficient lighting module and device with parallel light emission, facilitating easy assembly and compact integration, suitable for various applications including display devices and area sensors.
Implementation Method 1
a first lens on which light emitted from the light source is to be incident... Light exiting the first lens is substantially parallel light that is substantially parallel to the optical axis when viewed from a first direction intersecting an optical axis of the light source
Data Source
AI summary
A lighting module includes: a substrate; a light source located on the substrate; a first lens on which light emitted from the light source is to be incident; and a first holder to which the substrate and the first lens are fixed. Light exiting the first lens is substantially parallel light that is substantially parallel to the optical axis when viewed from a first direction intersecting an optical axis of the light source. The light exiting the first lens is substantially parallel light oblique to the optical axis when viewed from a second direction intersecting the optical axis and the first direction. A first end part of the first lens in the second direction is fixed to the first holder. When viewed from a third direction in which the optical axis extends, the first holder does not protrude outward of the first lens in the second direction.