Ultra-Thin Lighting Fixture with Nested Optical Assembly
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Solution Overview
Problem
Existing night lights have a thick housing, leading to an unattractive appearance and poor user experience.
Innovation Solution
A lighting fixture with an ultra-thin design, featuring a housing assembly where a light-emitting cover, reflector, and light source assembly are sequentially superposed in a mounting space, with a bottom case assembly that compresses them tightly, creating a compact and thin appearance, and includes a sensing module for automatic lighting activation based on light brightness and presence detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a direct-lit structure is used in existing night lights, then the lighting function is achieved, but the housing becomes thick and the appearance becomes unattractive
Solution Approach 1:
The patent implements nesting by placing the light source assembly inside the housing, the reflector around the light source assembly, and the light-emitting cover over the reflector. This nested arrangement allows all functional components to be contained within a compact space, reducing housing thickness while maintaining structural integrity and optical functionality.
Solution Approach 2:
The patent transitions from a planar direct-lit structure to a three-dimensional stacked arrangement where components are superposed in the thickness direction. This dimensional reorganization allows efficient use of space, enabling the housing to be much thinner while accommodating all necessary components through vertical stacking rather than lateral expansion.
2Length of stationary object
If components are tightly compressed in the ultra-thin design, then housing thickness is reduced, but assembly complexity increases
Solution Approach 1:
The patent divides the lighting fixture into distinct modular segments: housing, light source assembly, reflector, and light-emitting cover. Each segment is designed and assembled separately, then integrated together. This segmentation simplifies the overall assembly process despite the compact final form, as each component can be manufactured and prepared independently before final integration.
Solution Approach 2:
The patent merges multiple functional components (light source, reflector, diffuser) into a tightly integrated compact assembly where the bottom case assembly and housing assembly are fixedly connected. This merging reduces the overall thickness while maintaining functionality, as components work together in a unified compact structure rather than as separate spaced-apart elements.
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 solution results in a compact, aesthetically pleasing lighting fixture with improved user experience, offering automatic lighting control and energy efficiency through the sensing module.
Implementation Method 1
a light source assembly, comprising: a substrate, a drive component; and a plurality of light sources, provided on the substrate and electrically connected with the drive component
Implementation Method 2
the sensing module comprises a light sensor, the light sensor is triggered when light brightness is sensed to be less than a predetermined threshold
Implementation Method 3
the sensing module further comprises an infrared detector, the infrared detector is triggered when a presence of heat is detected
Data Source
Figure 1
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Figure 3A~4
AI summary
The present disclosure provides a lighting fixture, and relates to a lighting field. The lighting fixture comprises: a housing assembly and a bottom case assembly. The housing assembly comprises a housing, a light-emitting cover, a reflector and a light source assembly. The housing at least includes a lower end face and a side wall formed by extending vertically from the lower end face, to form a mounting space; and the lower end face is provided with an avoidance hole and in communication with the mounting space. The light-emitting cover, the reflector and the light source assembly are sequentially superposed in the mounting space; the light-emitting cover is fixedly connected with the housing; and the light-emitting cover abuts against the lower end face and at least partially closes the avoidance hole. The bottom case assembly includes a bottom case; the bottom case is located above the light source assembly, assembled with the housing, and fixedly connected with the housing to be compressed together tightly and collectively accommodate the reflector and the light source assembly as well as the light-emitting cover. The lighting fixture according to the present disclosure uses an ultra-thin design, so that an overall structure is assembled firmly and compactly, and a thickness thereof may be as same as a thickness of an AAA battery, which makes the lighting fixture according to the present disclosure light and thin, and small and exquisite in appearance, with good user experience.