Light Source Optical Convergence for Precise Multi-Region Irradiation
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Solution Overview
Problem
Existing light source devices struggle to 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 that includes light entering and emission portions, allowing for the irradiation of multiple regions with increased light intensity and directivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the whole irradiation area is divided into multiple fine irradiation regions, then the light distribution becomes more precise, but the area per irradiation region decreases leading to insufficient luminance
Solution Approach 1:
The light source device divides the irradiation area into multiple discrete irradiation regions, each corresponding to a specific light emitting part. This segmentation allows precise control of light distribution to different regions while maintaining adequate luminance in each region through dedicated light emitting elements and optical control structures.
Solution Approach 2:
Different light emitting parts are configured to emit light with specific characteristics tailored to their corresponding irradiation regions. The optical lens and light converging member are designed to concentrate and direct light locally to each region, ensuring that each region receives sufficient luminance appropriate for its specific requirements.
2Area of stationary object
If multiple light emitting parts are used to irradiate multiple regions, then the light distribution coverage increases, but the light intensity per region becomes insufficient
Solution Approach 1:
The optical lens and light converging member work together in a combined optical system to collect and concentrate light from multiple light emitting parts. This merging of optical functions allows the system to cover a wide irradiation area while simultaneously concentrating sufficient light intensity into each individual irradiation region.
Solution Approach 2:
The light converging member acts as an intermediary between the light emitting parts and the irradiation regions. It receives light from multiple sources and redirects/concentrates it to the specific target regions, enabling both broad coverage and high intensity delivery through this intermediate optical element.
3Illumination intensity
If the light emitting surface area is reduced to increase light concentration, then the luminance per unit area increases, but the total light output decreases
Solution Approach 1:
Instead of increasing luminance by reducing the light emitting surface area in two dimensions, the invention uses optical structures (lens and light converging member) to manipulate light in the third dimension. The system maintains large light emitting surfaces for high total output while using optical concentration to achieve high luminance per unit area at the target irradiation regions through spatial light redirection.
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 effectively irradiates multiple regions with sufficient light, enhancing luminance and light distribution by increasing the amount of light per unit area and controlling light directionality.
Implementation Method 1
an optical lens located above the light emitting surfaces of the light emitting parts, the optical lens having: a 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
Implementation Method 2
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
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 plurality of light entering portions, each 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 corresponding to a respective one of the plurality of light entering portions.