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Ultraviolet measuring method and its measuring device

A technology of measuring devices and measuring methods, applied in the field of ultraviolet rays, can solve the problems of not being noticed, not being easily realized, not being able to obtain accurate values, etc., and achieving the effect of simple structure

Inactive Publication Date: 2009-04-29
FUJIFILM BUSINESS INNOVATION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, no precise value can be obtained except by determining the UV index from the spectral illuminance
Can only be measured using a large measuring device and cannot be easily achieved
Also, conversely, with a measuring device having a spectral sensitivity matching that of erythematous ultraviolet rays, ultraviolet rays such as UVA cannot be measured, and there is a problem that passing through windows cannot be noticed and large cosmetic effects (such as liver spots, freckles, etc.) etc.) UV
[0009] Therefore, the current situation is that there is no method that can easily measure specific ultraviolet information, and improvement is expected

Method used

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  • Ultraviolet measuring method and its measuring device
  • Ultraviolet measuring method and its measuring device
  • Ultraviolet measuring method and its measuring device

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Embodiment Construction

[0021] Ultraviolet rays (solar infrared rays) of sunlight reaching the earth have wavelengths greater than 200 nm due to absorption by oxygen. In addition, stratospheric ozone absorption spans the wavelength range from 360nm to 300nm. Among them, ultraviolet rays having a wavelength of 320 nm or less have strong ozone absorption, and ultraviolet rays having a wavelength of 320 nm or less are called UVB, and ultraviolet rays having a wavelength of 400 nm to 320 nm are called UVA.

[0022] According to published data, in the solar ultraviolet, the ratio of UVB and UVA on the same date and time remains basically constant regardless of the weather. The amount of UVB is determined from the amount absorbed when passing through the ozone layer in the stratosphere. Thus, since the wavelength range of ultraviolet rays on the earth is narrow, wavelength-dependent differences in scattering and reflection are negligible, and it can be considered that the amount of UVB is not significantl...

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Abstract

The method includes procedures: estimating evaluated value for entire area based on spectral sensitivity of component for receiving ultraviolet radiation and radiation spectrum of solar spectrum; estimating evaluated value for specific area based on specific action curve, spectral sensitivity and radiation spectrum of solar spectrum; and carrying out correcting for value measured by component of receiving ultraviolet radiation based on the said evaluated value for entire area and the said evaluated value for specific area to determine specific information of ultraviolet; carrying out correcting for obtained information of specific ultraviolet based on information of solar altitude.

Description

technical field [0001] The present invention relates to a method and device for easily measuring ultraviolet rays present in living environments. More particularly, the present invention relates to an ultraviolet measurement method and an ultraviolet measurement device capable of obtaining specific ultraviolet information, such as the amount of ultraviolet rays directly acting on a human body. Background technique [0002] In recent years, one of the most serious global environmental problems is the increasing amount of ultraviolet rays on the earth due to the destruction of the ozone layer. Ultraviolet rays can have serious health effects, such as skin cancer, increased photosensitivity due to damage to DNA, photoaging, and more. From a cosmetic point of view, effects on the skin such as liver spots and freckles are also serious. [0003] From the aspects of cosmetology, medicine, etc., the necessity of measuring ultraviolet rays in the living environment is increasing. ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J1/02
Inventor 八木茂
Owner FUJIFILM BUSINESS INNOVATION CORP