著者
中村 肇
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.9, pp.793-795, 2001-09-01 (Released:2011-07-19)
参考文献数
6
被引用文献数
4 4
著者
上原 静香
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.86, no.3, pp.197-198, 2002-03-01 (Released:2011-07-19)
参考文献数
6
被引用文献数
1
著者
鶴岡 久 高辻 正基
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.69, no.11, pp.591-594, 1985-11-01 (Released:2011-07-19)
参考文献数
12
著者
石田 享子 井上 容子 内山 寛信 倉田 純一
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.95, no.8A, pp.439-445, 2011-08-01 (Released:2011-10-19)
参考文献数
7
被引用文献数
1 1

This study investigates how the season and the correlated color temperature affect the impression of lighting. However, subjective evaluation inevitably has individual variation. Therefore, the purpose of this paper is to clarify how within- and between-subject variation changes. The experiment variables are the season, the illuminance of the room, and the correlated color temperature of the fluorescent lamp. The seasons are summer and winter, there are 12 levels of vertical illuminance of the room from 0.5 to 2000 lx, and the correlated color temperature of the lamps are 3000 and 6700 K. The subjects are 27 to 31 young women. They evaluate brightness, glare, comfort, and relaxation effect of the lighting. In conclusion : 1) Brightness, glare, and comfortable sensations change depending on the illuminance. The influence on the relaxation effect due to the illuminance is small, and the relation is clear for each individual. The subjects have suitable illuminance levels for relaxation. 2) All four items are influenced by the change of illuminance level in between-subject variation. The range of illuminance in which the evaluation between subjects stabilized is as follows: brightness is 500 lx or more, glare is 50 lx or less, comfort is from 20 to 50 lx, and relaxation is from 10 to 20 lx. 3) The variation between individuals is larger than the variation for each individual, though there is little difference with changes in illuminance.
著者
高岡 齊
出版者
一般社団法人 照明学会
雑誌
照明学会雑誌 (ISSN:00192341)
巻号頁・発行日
vol.13, no.2, pp.90-93, 1929 (Released:2010-10-27)

本編は照明學會關西支部に於ける講演の要旨にして菫外線に依る装身具類, 纎維類, 食料品, 油脂類化學藥品, 染料等の鑑定に就て述べあり。
著者
三木 光範 谷口 由佳 吉見 真聡
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.96, no.8A, pp.437-441, 2012-08-01 (Released:2012-10-29)
参考文献数
13
被引用文献数
5 2

Improving the lighting environment in offices leads higher levels of intellectual productivity. We constructed a system that provides the individual illuminance and color temperature preferred by workers, and we carried an experiment to clarify which illuminance and color temperature in the office were preferred. The result of this experiment show that each person's favorite lighting environment was different and it changed with their state of health and time of day. We consider that creative works improved when workers were provided with a lighting environment they preferred.
著者
渕田 隆義 別所 誠
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.94, no.6, pp.308-317, 2010-06-01 (Released:2020-10-30)
被引用文献数
1

Incandescent lamps were invented approximately 130 years ago, and the most intelligent brains of the Europe, US, and Japan worked on incandescent lamp improvements and new product developments. As a result, incandescent lamps came to dominate mainstream illumination systems. Although new light sources such as fluorescent lamps have emerged since then, incandescent lamps have been used everywhere in the world to this day for the unique warm color of their light, and for the cozy feeling they create that people associate with candles and kerosene lamps. However, the 130 year history of incandescent lamps is now coming to an close, due to the significant mission of global warming prevention. From a historical perspective, we are now entering an era of innovation that arrives approximately once every 60 years. It is the dawn of an era of LED illumination that takes advantage of solid-state lighting, which is different from combustion- or electrical-discharge-based lighting. Brilliant researchers and engineers are now starting to work on improvements and refinements of LED lights, the same way their predecessors did 130 years ago. The world will soon be illuminated by the glow of LEDs. This article gives an overview of the history of the incandescent lamp in Japan, and introduces the history of various technologies that supported the development of incandescent lamps.

1 0 0 0 OA 航空障害標識

著者
黒沢 昌弘
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.73, no.3, pp.151-154, 1989-03-01 (Released:2011-07-19)
著者
藤井 克人 高橋 貞雄 吉田 博 鈴木 義彦
出版者
一般社団法人 照明学会
雑誌
照明学会雑誌 (ISSN:00192341)
巻号頁・発行日
vol.49, no.9, pp.510-518, 1965

When observing an object through fog, its visibility is reduced by the scattering of the light emitted or reflected from the object. Our efforts have been rendered towards observing the physical characteristics when we view a light source or object through fog.<BR>In this paper, the practical comparison of some light sources such as a fluorescent lamp, a sodium lamp or a mercury lamp about visual conditions is made at night in fog on an experimental basis. The effects of color improved mercury lantern and sodium lantern, which are used practically in highway lighting are compared in fog, and visual ranges of colored objects on the road surface lighted by them are also measured.<BR>The most important result of the experiment is that the visual difference depending on various kinds of light sources can't be noticed so much as the large decrease of visibility by the fog itself.
著者
氏家 弘裕 中村 則雄 佐川 賢
出版者
一般社団法人 照明学会
雑誌
照明学会 全国大会講演論文集
巻号頁・発行日
vol.37, pp.82, 2004

はじめに<BR> 文字の視認性や読みやすさは、公共空間における各種サインや家電製品のパネル表示、さらには薬品等の使用説明書など、安全で快適な日常生活を営む上で必要不可欠なものであり、これまでにもさまざまな観点から検討が行われてきた。<BR> しかしながらこれらの検討の多くは、短時間の読みや注視で得られたデータに基づくものであり、例えば長時間わたるコンピューター作業が行われるオフィス環境で、これまでの検討結果を単純に適用するには困難があると思われる。<BR>短時間の読みにおいては、ある程度目立ちによる読みやすさという要素が含まれると思われるが、長時間の読みにおいては、この目立ちの要素が視覚疲労につながり得ると考えられるからである。<BR> 我々のグループはJIS S0032により、日本語文字の視覚表示物に必要な最小サイズを推定する方法を規定したが、長時間の読み作業においては、単に最小の文字サイズだけでなく視覚疲労の観点から読みやすい文字サイズを検討する必要がある。そこで本研究では、長時間の読みにおいて生じる視覚疲労の文字サイズの影響を調べることを目的とする。
著者
佐藤 仁人 乾 正雄
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.77, no.6, pp.275-284, 1993-06-01 (Released:2011-07-19)
参考文献数
16
被引用文献数
1 1

In recent years, windowless office spaces have increased remarkably, while problems related to windowless roomsremain to be solved.This study was conducted to evaluate the effects of visual environment on human psychology and behavior in a windowless office space.This thesis consists of three Experiments which are stated below.In Experiment 1, using scale models, at first the psychological factor structure of the visual environment of a windowless control room, which is the typical windowless office room, are surveyed. Secondly the relationship between psychological factors and physical factors which constitute visual environment are examined.In Experiment 2, how the visual environment affect subjective appraisal and human behavior such as eye movement, task performance and behavior pattern, in windowless office spaces are disscussed, when subjects were at fundamental task in an actual sized experimental space.In Experiment 3, how visual environment and types of task affect human psychology and behavior such as subjective appraisal, task performance, behavior patterns in windowless office spaces are examined, when subjects took six types of task, which were chosen to take usual work at an office space into consideration, in the same experimental space.Summing up the results obtained above, we conclude that although the visual environment of the windowless office space have negative influence upon human psychology and behavior, they can be compensated by considering interior decoration and types of task.