Strip Light Optical Splitting for Dual-Side Showcase Illumination
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Solution Overview
Problem
Current LED lighting systems for vertical cabinets and showcase cabinets are inefficient as they require multiple rows of light sources to illuminate both sides, leading to high manufacturing costs and complex structures, while failing to adequately illuminate lower areas due to the longitudinal distance between light sources and the illumination surface.
Innovation Solution
A strip light system with optical components, including first and second light splitting members and a light stretching member, that splits and diffuses light to increase the illumination range, ensuring uniform lighting across the surface without dark areas by using a combination of light splitting lenses and reflectors to direct light outward and along the length of the strip light holder.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple rows of light sources are used to illuminate both sides of the mullion, then the illumination coverage is improved, but the manufacturing cost and structural complexity increase
Solution Approach 1:
The optical component is segmented into multiple functional regions: a first optical region with a first light splitting surface for directing light to one side of the mullion, and a second optical region with a second light splitting surface for directing light to the other side. This segmentation allows a single row of light sources to achieve dual-sided illumination without requiring multiple separate light source rows, thereby reducing structural complexity while maintaining comprehensive illumination coverage.
2Illumination intensity
If lighting lamps are installed at the top of the cabinet body, then the upper compartments are illuminated, but the lower compartments remain dark
Solution Approach 1:
The optical component introduces a angular dimension to light distribution by incorporating light splitting surfaces that redirect light at different angles. The first light splitting surface directs light toward one side of the mullion while the second light splitting surface directs light toward the other side, creating a multi-directional illumination pattern that extends light coverage from the upper installation position down to lower compartments, effectively utilizing angular distribution to overcome the limitation of vertical distance.
3Device complexity
If a single row of light sources is used, then the structure is simplified, but the illumination range is insufficient to cover both sides adequately
Solution Approach 1:
The optical component acts as an intermediary between the single row of light sources and the illumination surfaces on both sides of the mullion. It receives light from the light sources and redistributes it through its light splitting surfaces, effectively extending the illumination range to cover both sides of the mullion and lower compartments. This intermediary mechanism allows a simplified single-row light source configuration to achieve illumination coverage comparable to multiple rows without the associated complexity.
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 strip light system achieves a large illumination range with uniform brightness, eliminating dark areas and reducing the need for multiple rows of light sources, thereby enhancing energy efficiency and reducing manufacturing costs.
Implementation Method 1
the first light splitting surface directs light of the light source at the optical axis and its vicinity outward along the width direction of the strip light holder and projects the light to the distal end of the illumination surface
Implementation Method 2
the first light splitting surface, which is total reflection surface
Implementation Method 3
light stretching member, provided with at least one group, at least one of which is provided in each group, each group being located between two adjacent groups of first light splitting members, and used for diffusing the light of the light source along the length direction of the strip light holder
Implementation Method 4
most of the light passing through the arch top surface is refracted to the first light splitting surface, and most of the light passing through the side surface is refracted to the first light emitting surface
Data Source
AI summary
A strip light used in showcase, comprising strip light holder; circuit board; at least three light sources; at least three optical components; the optical components comprising first light splitting member, including two first light splitting surfaces distributed on two sides of the optical axis of the light source; the first light splitting surface directs light of the light source at the optical axis and its vicinity outward along the width direction of the strip light holder and projects the light to the distal end of the illumination surface; light stretching member, being located between two adjacent groups of first light splitting members, and used for diffusing the light of the light source along the length direction of the strip light holder and projecting it onto the illumination surface directly in front of the first light splitting member of the adjacent group.