Light Guide Body Brightness Calculation for Motorcycle Design
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Solution Overview
Problem
The existing design methods for light guide bodies on motorcycles are uncertain in achieving required brightness in the early stages, often requiring repeated trial productions and redesigns, leading to increased man-hours due to the empirical nature of the process.
Innovation Solution
An arithmetic apparatus and method that calculates the light guide distance, input light amount, and output light amount using a calculation equation that accounts for absorption losses, allowing for theoretical limitations to be set and optimized, thereby ensuring even brightness on the light-emitting surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If empirical design method with light beam tracing is used, then design flexibility is maintained, but design time and man-hours increase due to repeated trial productions
Solution Approach 1:
The patent applies preliminary action by establishing a theoretical model that predicts brightness distribution before actual production. The model incorporates absorption coefficients and light guide body characteristics to calculate expected brightness, allowing designers to evaluate design proposals in advance and avoid repeated trial productions.
Solution Approach 2:
The patent substitutes the empirical mechanical trial-production system with a theoretical calculation system. By using mathematical models that incorporate absorption coefficients and light propagation characteristics, the design process transitions from physical trial-and-error to computational prediction, significantly reducing design time while maintaining flexibility.
2Loss of time
If theoretical model is used to predict brightness, then design time is reduced, but measurement precision of brightness prediction must be sufficient
Solution Approach 1:
The patent applies parameter changes by incorporating the absorption coefficient as a key parameter in the theoretical model. By measuring or determining the absorption coefficient of the light guide body material and using it in brightness distribution calculations, the model achieves sufficient prediction accuracy to guide design decisions without requiring repeated physical prototypes.
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 approach enables the determination of theoretical limitations for light guide distance, input light amount, and even brightness, reducing the need for repeated redesigns and trial productions by providing a more precise and efficient design process.
Implementation Method 1
a light guide body configured to guide light input from a light incident surface to a light-emitting surface different from the light incident surface and to output the light from the light-emitting surface
Implementation Method 2
calculating an absorption light amount to be absorbed by the light guide body
Data Source
AI summary
An arithmetic apparatus according to the present embodiment sets setting values with respect to two among a light guide distance of a light guide body, an input light amount to a light incident surface and an output light amount on a light-emitting surface, and calculates remaining one value among the light guide distance, the input light amount and the output light amount by applying the set setting values to a calculation equation indicative of a balance of a light amount of light that is guided by a unit distance in the light guide body.