著者
西岡 博
出版者
一般社団法人照明学会
雑誌
照明学会誌 (ISSN:00192341)
巻号頁・発行日
vol.84, no.6, 2000-06-01
著者
山下 晃司
出版者
一般社団法人照明学会
雑誌
照明学会誌 (ISSN:00192341)
巻号頁・発行日
vol.87, no.9, pp.717-718, 2003-09-01

JR高松駅はガラス張りのアトリウムが特徴的なコンコースと,各種商業施設からなり,高松の新しいランドマークとして誕生した.階段を利用しなくともホームとコンコースを移動できる平面プランは頭端駅(終着駅)としての特徴を表わし,それを覆う3層吹き抜けの大空間はこの駅施設の目玉となっている.飲食,物販,カルチャースクールなどの施設も充実し,全体としてもハートビル法の認定を受けたバリアフリーデザインのモデル駅でもある.
著者
大石 啓悟 石澤 広明 宮内 祐樹 福田 将也
出版者
一般社団法人 照明学会
雑誌
照明学会誌 (ISSN:00192341)
巻号頁・発行日
vol.98, no.2, pp.62-67, 2014-02-01 (Released:2014-03-31)
参考文献数
25

There has recently been a significant increase in the number of diabetic patients. Self-monitoring of the glucose levels in a patient's blood is essential for treating diabetes. Generally, blood glucose measurement requires an invasive blood sampling. Therefore, patients are always plagued by issues such as pain, stress, and risk of blood-borne infection. The objective of this study is to develop a non-invasive blood glucose measurement device based on NIR spectroscopy. We compared the prediction accuracy of the individual calibration curve and summarized calibration curve, and took the analysis wavelength range into consideration as fundamental experiments for taking a non-invasive blood glucose measurement. As a result, a clinically effective level of accuracy and a high correlation were confirmed in the individual calibration curve, and an analysis using a smaller wavelength range has a good influence on the accuracy.
著者
野口 公喜 白川 修一郎 駒田 陽子 小山 恵美 阪口 敏彦
出版者
一般社団法人照明学会
雑誌
照明学会誌 (ISSN:00192341)
巻号頁・発行日
vol.85, no.5, pp.315-322, 2001-05-01
被引用文献数
6

The effects of simulating dawn lighting with an ordinary ceiling light on the quality of awakening were investigated. The subjects were healthy men, aged 24-27. After sleep for about 7 hours with polysomnographic recordings in a climatic chamber kept at a temperature of 25℃ and a relative humidity of 50%, each subject was awakened by an alarm. For the 30 minutes immediately before the subject was awakened, the illumination in the chamber was gradually increased, simulating the condition of waking up as the sun rises. Alpha attenuation test, measuring blood pressure and awakening feelings were conducted after awakening. The time of sleep stage 2 appearing during the 30 minute simulating dawn lighting was significantly less (p < 0.05; Wilcoxon test) than during typical waking conditions (i.e., waking up in the dark), while the time of stage W was higher (p = 0.0796). The mood after awakening in the simulating dawn lighting condition was significantly better (p < 0.05). There were no significant differences in the alpha attenuation coefficients and blood pressures after awakening between the two conditions. These results suggest that simulating dawn lighting arouses subjects to light sleep, which makes awakening less sudden and more pleasant. There was no evidence that the light sleep immediately before awakening decreased the subjects' cerebral cortex activity or sympathetic nervous activity after awakening.
著者
宿谷 昌則
出版者
一般社団法人照明学会
雑誌
照明学会誌 (ISSN:00192341)
巻号頁・発行日
vol.87, no.9, pp.720-724, 2003-09-01

私たち人間社会が地球環境問題に直面していると言われるようになって10年以上が経った.地球大気中の二酸化炭素濃度が上昇し続けていて,そのために,地表付近の平均温度がどうも上昇しているらしい……そういうことが言われ出したのは筆者の記憶では1989年ごろである.それを受けて,例えば1992年にはリオデジャネイロで地球環境サミットと呼ばれる会議が行われたり,1997年には,二酸化炭素排出の問題を巡ってCOP3と呼ばれる会議が京都で行われたりした.それらの一方で,例えば1990年ごろには湾岸戦争が,また,つい5ヵ月前にはイラク戦争があって,まさに資源の浪費があった.本来なら排出しなくて済むはずの二酸化炭素が大量に排出され撒き散らされた.劣化ウランなども撒き散らされたらしい.環境破壊は甚だしい.以上のような背景で,私たち人間が生活する場--建築や都市環境空間--の照明がどのようにして成り立っているかを考える……何だか呑気な感じがしないでもない.しかし,本特集号の主題にある'地球環境'のような大きな問題を議論する場合にこそ,誰にとっても関わりある身近な題材から出発して考えを巡らすことが大切だろう.等身大の事柄から出発して考えを展開していくことは,いわゆる地球環境問題や,戦争を含むさまざまな環境破壊を起こさせないための微小ではあるが確実な(倫)理性を私たちの一人ひとりが持つことに,結局のところ最も役立つに違いないと思うのだ.そう考えることにして,人なら誰にとっても身近な照明について踏み込んで考察し,地球という自然の成り立ちに思いを致し,ヒト(人)という自然が持つ原理に倣った照明のあり方を想像してみたい.
著者
田辺 吉徳 大竹 史郎
出版者
一般社団法人 照明学会
雑誌
照明学会誌 (ISSN:00192341)
巻号頁・発行日
vol.83, no.5, pp.278-287, 1999-05-01 (Released:2011-07-19)
参考文献数
50
被引用文献数
2 1

The recommended illuminance in the Japanese lighting standard (JIS Z 9110) was determined based on Indow and Kawai's experimental study concerning the relationship between illuminance and readability of printed text. As the observers in the experiment were young, the recommended illuminance derived from the experiment cannot be applied directly to older people. To estimate the recommended illuminance for older people, a set of numerical analyses wasconducted. We found that the readability scale in the above experimental study correlates with the Visibility Level (VL) defined by CIE publication No.19/21. The luminance difference threshold (ΔLmin) derived from the contrast threshold function (Cth) of the CIE publication was divided into two parts (ΔLaf for foveal adaptation and ΔLeq for veiling luminance), assuming ΔLmin=ΔLaf+ΔLeq. After considering age factors in each part, the luminance difference threshold function ΔLmin*was reconstructed. Applying the ΔLmin* function to the VL analysis, the recommended illuminance for older people was estimated. The result shows that at least about 700 lx of illuminance may be recommended for older people reading 3-mm high printed characters. The visibility level analysis is a useful method for assessing readability considering age-related effects.
著者
三浦 利章
出版者
一般社団法人 照明学会
雑誌
照明学会誌 (ISSN:00192341)
巻号頁・発行日
vol.82, no.3, pp.180-184, 1998-03-01 (Released:2011-07-19)
参考文献数
13
被引用文献数
10 5
著者
杉本 賢
出版者
一般社団法人 照明学会
雑誌
照明学会誌 (ISSN:00192341)
巻号頁・発行日
vol.64, no.4, pp.178-182, 1980-04-01 (Released:2011-07-19)
参考文献数
18
被引用文献数
9 5

The heart rates, based on the R-R intervals, and pneumogramms of 18 subjects have been measured for 35 min. at illumination levels from 10 to 2, 000 lx. Light sources used were the fluorescent lamps with the color temperature of 4200 K. The wall in the test room was yellow-green close to 7.5 GY 8/2, and the room temperature was kept at 24 ± 1 ° C. The amount of physiological load was assessed from the mean heart rate, heart rate variability, and mean amplitude and period of pneumogramm.At the same time, psychological effects were investigated by use of a simple questionnaire.The results indicated that physiological load was minimum at the illumination level of 320 lx, and increased with increase or decrease in illumination level from 320 lx. Therefore the level of 320 lx appears to be the physiologically optimum level of illumination.Psychologically, however, the level of 1, 000 lx was estimated to be the most desirable level of illumination, and desirability decreased as the illumination level was icreased or decreased from 1, 000 lx.
著者
雨宮 卓
出版者
一般社団法人 照明学会
雑誌
照明学会誌 (ISSN:00192341)
巻号頁・発行日
vol.84, no.4, pp.229-233, 2000-04-01 (Released:2011-07-19)
著者
椎名 達雄 池田 紘一
出版者
一般社団法人 照明学会
雑誌
照明学会誌 (ISSN:00192341)
巻号頁・発行日
vol.82, no.2, pp.76-83, 1998-02-01 (Released:2011-07-19)
参考文献数
7

In a past study, we developed a laser radar system for estimating slant visibility, which is the visibility along the glide path of an airplane and proposed the new laser radar equation, considering the divergence of the transmitting laser beam in bad weather conditions, like rain, fog and snow, in order to obtain the exact slant visibility in various weather conditions. This equation corresponds well to practical data and estimated visibilities coincide well with actual ones in various weather conditions.In the present study, to confirm the appropriateness of the new laser radar equation, the scattering angle characteristics of a laser beam propagating through fog is measured by using an optical Fourier transform system and an artificial fog generator. As a result of this experiment, the spatial spread functions of broadening of the forward beam caused by the fog scattering are derived from the obtained data as angle distribution.Using these spread functions, the analysis of broadening of a laser beam propagating through fog in laser radar operation using a computer. This computer analysis reveals the alternation of the pattern of the transmitting laser beam through fog. As a result, broadening and scattering characteristics of the transmitting beam in foggy condition were found and the spreads of transmitting beam derived from the calculated results well explain the concept of the new equation.The analyzed results compared well with practical data for laser radar. And the slant visibilities derived from the analyses well coincided the actual ones.

1 0 0 0 OA 色の見え方

著者
鈴木 恒男
出版者
一般社団法人 照明学会
雑誌
照明学会誌 (ISSN:00192341)
巻号頁・発行日
vol.79, no.9, pp.556-557, 1995-09-01 (Released:2011-07-19)
著者
北原 健二
出版者
一般社団法人 照明学会
雑誌
照明学会誌 (ISSN:00192341)
巻号頁・発行日
vol.81, no.6, pp.488-492, 1997-06-01 (Released:2011-07-19)
参考文献数
10