Segmented Light Source Optics for High-Luminance Multi-Region Irradiation
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Solution Overview
Problem
Existing light sources struggle to effectively irradiate multiple, finely divided irradiation regions with sufficient light due to the reduction in area per region, leading to difficulty in achieving adequate luminance and light distribution.
Innovation Solution
A light source device comprising a plurality of light emitting parts, an optical lens, and a light converging member with specific configurations to increase light convergence and directivity, allowing for efficient irradiation of multiple regions with increased luminance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the irradiation area is divided into multiple fine regions, then the spatial resolution and precision of light distribution are improved, but the light amount and luminance in each region become insufficient
Solution Approach 1:
The patent divides the optical lens into multiple independent optical units, each corresponding to a specific irradiation region. Each optical unit includes a light entering portion and a light emission portion, enabling independent control and optimization of light distribution for each region. This segmentation allows fine-grained control of irradiation patterns while maintaining sufficient light amount in each region through dedicated optical pathways.
Solution Approach 2:
The patent introduces a light converging member as an intermediary component between the light emitting parts and the optical lens. This light converging member includes multiple light entering portions and light emission portions that act as mediators to concentrate and redirect light from the light emitting parts to the corresponding irradiation regions, thereby enhancing light distribution efficiency and luminance in each segmented region.
2Quantity of substance
If multiple light emitting parts are used to cover large area, then the total light output is improved, but the light distribution uniformity and control precision deteriorate
Solution Approach 1:
The patent segments the optical system into multiple independent optical units, each responsible for a specific irradiation region. This segmentation enables precise control of light distribution in each region while maintaining high total light output through parallel operation of multiple light emitting parts. Each optical unit can be independently optimized for its specific region without compromising overall system performance.
Solution Approach 2:
The patent implements local quality optimization by providing dedicated light entering portions and light emission portions for each irradiation region. Each region receives customized optical treatment tailored to its specific requirements, allowing different regions to have optimized light distribution characteristics while contributing to the overall high light output of the system.
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 device achieves sufficient light irradiation in multiple, finely divided regions by enhancing light convergence and directivity, ensuring clear and effective illumination.
Implementation Method 1
a light converging member located between the light emitting parts and the optical lens, the light converging member including: a plurality of light entering portions, each of the plurality of light entering portions corresponding to a respective one of a plurality of light emitting parts and covering the light emitting surface of the respective one of the light emitting parts, and a plurality of light emission portions, each of the plurality of light emission portions corresponding to a respective one of the plurality of light entering portions and having an area smaller than an area of the respective one of the plurality of light entering portions
Implementation Method 2
an optical lens located above the light emitting surfaces of the light emitting parts, the optical lens having: a first surface located on a light emitting surface side of the light emitting part, the first surface including a plurality of incident regions each corresponding to a respective one of the plurality of light emitting parts such that a light emitted from each of the light emitting parts is incident on a respective one of the plurality of incident regions, and a second surface opposite to the first surface, the second surface including a plurality of emission regions each corresponding to a respective one of the plurality of incident regions
Data Source
AI summary
A light source device includes: a plurality of light emitting parts, each having an upper surface that includes a light emitting surface; an optical lens located above the light emitting surfaces of the light emitting parts, the optical lens having: a first surface including a first incident region, and a second surface including a second incident region; and a light converging member located between the light emitting parts and the optical lens, the light converging member including: a light entering portion, corresponding to a first of the plurality of light emitting parts and covering the light emitting surface of the first light emitting part, and a light emission portion, corresponding to the light entering portion. The light converging member includes a first light-reflective member and a unit light converging portion having the light entering portion and the light emission portion.