Arithmetic apparatus, arithmetic method, and storage medium

Abstract

An arithmetic apparatus sets a setting value with respect to an input light amount to a light incident surface, calculates, regarding each of a plurality of sections obtained by dividing an inside of the light guide body along a light guide path every unit distance, an absorption light amount to be absorbed by the light guide body and an output light amount to be output from a light-emitting surface at a time when light passes through each of the sections by using the set setting value, calculates an intensity value at a time when the light goes out of each of the sections by subtracting calculation values of the absorption light amount and the output light amount from an intensity value at a time when the light enters each of the sections, and determines a light emission amount to be output from the light-emitting surface based on calculated calculation values.

Description

[0001]The contents of the following Japanese patent applications are incorporated herein by reference:[0002]NO. 2019-020484 filed in JP on Feb. 7, 2019, and[0003]NO. PCT / JP2020 / 004632 filed in WO on Feb. 6, 2020.BACKGROUND1. Technical Field[0004]The present invention relates to an arithmetic apparatus, a method and a storage medium.2. Related Art[0005]A light guide body (also referred to as ‘light guide’) that is mounted on a motorcycle and the like is usually designed according to following procedures. 1) Design requirements such as a shape of a light guide body, an intensity of a light source, required brightness (a brightness value and a level of evenness), a regulation light distribution and the like that are necessarily required from practical standpoints are set. 2) Design conditions such as a material of the light guide body, a structure of a prism (a shape, a size, an arrangement pitch, and the like), a structure of a light incident part and the like that can be arbitrarily ...

AI Technical Summary

Benefits of technology

The patent describes an arithmetic apparatus and method for designing a light guide body that can guide light from a light incident surface to a light-emitting surface. The apparatus and method allow for the calculation of the amount of light absorbed and output by the light guide body, as well as the intensity of light at different points in the guide. The design can be based on various design parameters such as prism design, cross section design, and path design. The technical effect of the invention is to provide a more accurate and efficient tool for designing light guide bodies.

Problems solved by technology

However, according to the above empirical design method, in the early stage of design, it is uncertain whether the requirement of the above 1), particularly, the required brightness can be achieved.

Therefore, in some cases, it is turned out that the requirements cannot be achieved, only after the design procedures from the above 2) to the above 4), and further, the trial production of the light guide body is repeated.

Such rework increases man-hours.

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