Refrigerator Interior Lighting Segmentation for Glare Reduction
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Solution Overview
Problem
Existing domestic refrigeration devices often suffer from inadequate interior lighting arrangements that can cause glare and uneven illumination, particularly when the door is opened, which can make it difficult to view contents effectively without straining the eyes.
Innovation Solution
A dual partial interior lighting arrangement is implemented, where the first partial arrangement illuminates the rear and central regions of the coolable interior space from the side walls, and the second partial arrangement, independent of the first, illuminates the front region from the ceiling, providing tiered and uniform lighting without direct glare. This setup includes LED lighting with a lens optical system and a housing design that ensures light is distributed uniformly and reduces eye strain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a single interior lighting arrangement is used to illuminate the entire coolable interior space, then the illumination coverage is comprehensive, but the illumination uniformity is poor and glare occurs
Solution Approach 1:
The interior lighting arrangement is divided into two independent partial lighting arrangements: a first partial interior lighting arrangement arranged in or on the ceiling to illuminate the front region of the coolable interior space, and a second partial interior lighting arrangement arranged in or on the rear wall to illuminate the rear region. This segmentation allows each partial arrangement to be optimized for its specific region, achieving uniform illumination across the entire space without glare.
2Ease of manufacture
If lighting is provided from the front region only, then installation is simple, but the rear region remains poorly illuminated
Solution Approach 1:
The lighting system is segmented into two independent partial arrangements with distinct functions: the first partial arrangement handles front region illumination while the second partial arrangement handles rear region illumination. This segmentation ensures complete coverage of the coolable interior space while maintaining installation simplicity through modular design.
Solution Approach 2:
The lighting arrangement transitions from a single-point or single-plane illumination approach to a distributed multi-plane approach, with lighting elements positioned on both the ceiling and rear wall. This dimensional distribution ensures that light reaches all areas of the coolable interior space effectively.
3Illumination intensity
If bright lighting is provided when the door is open, then visibility is improved, but eye strain increases due to glare
Solution Approach 1:
Each partial interior lighting arrangement is designed to provide localized illumination optimized for its specific region. The first partial arrangement illuminates the front region without directing light toward the door opening, while the second partial arrangement illuminates the rear region. This local optimization provides sufficient visibility throughout the space while eliminating glare sources that would cause eye strain.
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 dual partial lighting arrangement provides a uniform and comfortable illumination of the coolable interior space, reducing eye strain and ensuring that the entire depth of the space is illuminated effectively, while minimizing glare by directing light from the ceiling downwards into the front region.
Implementation Method 1
LED lighting with a lens optical system
Implementation Method 2
lens optical system
Data Source
AI summary
A domestic refrigeration device includes a thermally insulated body with an internal compartment delimiting an interior coolable food storage space, a refrigeration apparatus cooling the interior space, a door leaf closing the interior space in a closed state and making the interior space accessible in an open state, and an interior lighting configuration illuminating the interior space with the door leaf open. The interior space has side walls with a depth, edges facing the door leaf, a ceiling and a rear wall rearwardly closing the interior space. The lighting configuration includes a first partial interior lighting configuration illuminating the interior space only at least approximately starting from a distance or space measured from the edges of the side walls facing the door leaf to the rear wall, and a second independent partial interior lighting configuration illuminating only a front region of the interior space facing the door leaf.