Lighting apparatus for display and showcase
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Solution Overview
Problem
In refrigeration showcases, the existing method of using multiple LEDs on both sides of the opening/closing door to illuminate display items leads to inefficient lighting, increased power consumption, and higher costs due to the generation of dark areas inside the case main body.
Innovation Solution
A lighting apparatus with a plurality of illumination units, each comprising a light source and a lens body with specific emission surfaces, is disposed along one end of the display item, efficiently radiating illumination light through a combination of reflection and refraction to prevent dark areas, reducing the need for LEDs on both sides of the door.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If multiple LEDs are disposed on both sides of the opening/closing door to illuminate display items, then illumination coverage is improved, but device complexity and power consumption increase
Solution Approach 1:
The patent combines multiple functions (illumination, reflection, and light distribution control) into a single integrated lens body structure. The lens body includes a light source, reflecting surface, and multiple emission surfaces (first, second, and third emission surfaces) that work together to illuminate the entire display area, replacing the need for separate LED assemblies on both sides of the door.
Solution Approach 2:
The patent utilizes three-dimensional light path design within the lens body, creating multiple emission surfaces oriented in different directions (front, side, and back emission surfaces). This spatial arrangement allows light to be distributed throughout the display area from a single location, effectively using dimensional positioning to achieve comprehensive coverage without multiplying the number of light sources.
2Illumination intensity
If multiple LEDs are disposed on both sides of the opening/closing door to illuminate display items, then illumination coverage is improved, but power consumption increases
Solution Approach 1:
The patent combines multiple functions (illumination, reflection, and light distribution control) into a single integrated lens body structure. The lens body includes a light source, reflecting surface, and multiple emission surfaces (first, second, and third emission surfaces) that work together to illuminate the entire display area, replacing the need for separate LED assemblies on both sides of the door.
Solution Approach 2:
The lens body's reflecting surface and multiple emission surfaces automatically redirect and distribute light throughout the display area without requiring additional active components or control systems. The optical structure itself performs the light distribution function that would otherwise require multiple separate LED assemblies, making the system self-sufficient in achieving comprehensive illumination.
3Illumination intensity
If multiple LEDs are disposed on both sides of the opening/closing door to illuminate display items, then uniform lighting is achieved, but cost increases
Solution Approach 1:
The patent combines multiple functions (illumination, reflection, and light distribution control) into a single integrated lens body structure. The lens body includes a light source, reflecting surface, and multiple emission surfaces (first, second, and third emission surfaces) that work together to illuminate the entire display area, replacing the need for separate LED assemblies on both sides of the door.
Solution Approach 2:
The lens body serves multiple functions simultaneously: it houses the light source, provides reflection through its inner surface, and creates multiple emission surfaces for light distribution. This multi-functional design replaces what would traditionally require multiple separate components (multiple LED assemblies, multiple reflectors, multiple lenses), thereby reducing manufacturing complexity and cost while achieving uniform lighting coverage.
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 configuration allows for efficient illumination of display items, reducing power consumption and costs by minimizing the number of light sources required, while ensuring uniform lighting without dark areas, and is applicable to various types of showcases.
Implementation Method 1
a reflecting surface that condenses the illumination light entering from the incidence section by in a same direction reflecting the illumination light
Implementation Method 2
a first emission surface that emits the illumination light from the one end of the front surface side of the display item toward other end
Implementation Method 3
a second emission surface that emits some of the illumination light entering the reflecting surface from the one end of the front surface side of the display item toward a closer side in a depth direction by allowing a transmission of the some of the illumination light entering the reflecting surface through the second emission surface
Data Source
AI summary
A lighting apparatus for display includes a plurality of illumination units each including a light source that emits illumination light and a lens body, wherein the plurality of illumination units are disposed in parallel along one end of a front surface side of the display item, and the lens body has an incidence section to which illumination light enters, a reflecting surface that condenses the illumination light entering from the incidence section in a same direction by reflecting the illumination light, a first emission surface that emits the illumination light from the one end of the front surface side of the display item toward other end, and a second emission surface that emits some of the illumination light entering the reflecting surface from the one end of the front surface side of the display item to a closer side in a depth direction by allowing a transmission thereof.