Curved Lighting Device Integrating Light Source and Lens
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Solution Overview
Problem
Conventional lighting devices require increased volume and size due to the need for a fixed space to improve light reflection efficiency, limiting design flexibility and increasing overall thickness and weight.
Innovation Solution
The integration of a light source unit and lens unit, where the light source unit is flexible and curved to match the lens unit, minimizing optical loss and allowing for efficient light reflection and distribution, thereby reducing the device's thickness and volume while enhancing design freedom.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a fixed space is provided in the external housing to improve light reflection efficiency, then light reflection capability is improved, but the entire volume and size of the lighting device are increased
Solution Approach 1:
The patent combines the light source unit and lens unit into a single integrated structure, eliminating the need for a separate fixed space in the external housing. The light source unit is directly positioned against the lens unit, allowing light reflection and refraction to occur within the compact integrated structure, thereby improving light reflection capability without increasing the overall device volume.
Solution Approach 2:
The patent utilizes the curved surface of the lens unit as a new dimensional space for light reflection. By forming the light source unit to match the curved surface of the lens unit, the invention creates a three-dimensional integrated structure that eliminates the need for traditional fixed reflection spaces, achieving efficient light reflection within a compact volume.
2Illumination intensity
If a fixed space is provided in the external housing to improve light reflection efficiency, then light reflection capability is improved, but the design flexibility is limited
Solution Approach 1:
The integration of the light source unit and lens unit into a single structure provides design flexibility by eliminating the constraint of fixed spaces in the external housing. The unified structure can be adapted to various lens shapes and light distribution requirements, enabling greater design freedom while maintaining efficient light reflection capability.
Solution Approach 2:
The light source unit is designed with flexibility to conform to the curved surface of the lens unit. This dynamic adaptation allows the light source unit to be customized for different lens geometries and optical requirements, enhancing design flexibility while ensuring optimal light reflection and distribution.
3Length of moving object
If the light source unit is integrated with the lens unit, then the entire thickness is reduced, but the light reflection efficiency must be maintained
Solution Approach 1:
The patent utilizes the curved surface of the lens unit as a reflective surface, eliminating the need for additional space for traditional reflection members. By forming the light source unit to match the curved surface, light is efficiently reflected and directed through the lens in a compact integrated structure, maintaining high light reflection efficiency while reducing overall thickness.
Solution Approach 2:
The curved surface of the lens unit acts as a reflective surface that redirects light from the LED source. By integrating the light source unit directly against the lens unit, the design maintains efficient light reflection and refraction in a thin profile, achieving both reduced thickness and maintained light reflection efficiency.
4Adaptability or versatility
If the light source unit is made flexible to match the lens unit, then design freedom is improved, but manufacturing complexity increases
Solution Approach 1:
The light source unit is constructed using a flexible printed circuit board (FPCB) that can be bent and shaped to match the curved surface of the lens unit. This flexible construction allows for easy adaptation to different lens geometries while maintaining relatively simple manufacturing processes, as FPCB technology is well-established and can be easily formed into various shapes.
Solution Approach 2:
The flexibility of the light source unit allows for parameter changes in terms of shape and curvature to match different lens unit geometries. By using flexible materials and construction methods, the design can be adapted to various configurations without significantly increasing manufacturing complexity, as the same basic flexible structure can be adjusted to different curvatures and shapes.
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 integration results in a thinner, more efficient lighting device with improved light reflectance and brightness, offering greater design flexibility and applicability to various illumination applications.
Implementation Method 1
a light source unit which converts light emitted from a light emitting unit to a surface light source and supplies the light to the lens unit
Implementation Method 2
a front lens 50 which collects light irradiated from the light source unit 10 in a forward direction
Implementation Method 3
a reflection member is disposed in an inner side of the external housing 70 to reflect light irradiated from the LED
Data Source
Figure 1~2(b)
Figure 3~4
Figure 5~6
AI summary
Provided is a lighting device, including: a lens unit including one or more lenses (300,500); and a light source unit (100) which converts light emitted from a light emitting unit (130) to surface light source and supplies the light to the lens unit, wherein the light source unit (100) is integrally connected to the lens unit, whereby an entire thickness and volume of the product can be reduced and the lighting device can be applied to the fields of various illumination technologies, thereby having generality.