文献一覧: 00192341 (ISSN) - Ceek.jp Altmetrics

3 0 0 0 光とメラトニン(<特集>健康のための光)

著者: 野口公喜
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.93, no.3, pp.134-137, 2009-03-01
被引用文献数: 2

Melatonin is considered to be an important hormone for sound sleep and circadian regulation. It had firstly been found to be suppressed by high intensity light (2500lx) about 30 years ago then recent studies suggested it could be suppressed by household indoor lighting as well. In this report, a lower color temperature fluorescent lighting (2300K) than general products is introduced based on recently discovered action spectrum. It was proved to have less impact on melatonin secretion than 3000K and 5000K under same illuminance condition. Considering wavelength constitution will be more important in next generation lighting represented by LED.

https://ci.nii.ac.jp/naid/110007126779

2 0 0 0 OA 可視光通信の交通信号への適用(<特集>固体光源のさらなる普及と活用分野の拡大に向けて)

著者: 山里敬也
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.1, pp.17-20, 2014-01-01 (Released:2019-11-02)

Visible light communications (VLC) is the latest optical wireless communications technology that uses low-power light emitting diodes, or LEDs, not only to provide light but also to broadcast data. LEDs are extremely energy-efficient and predicted to become widespread in general lighting application. Because LED is a solid-state lighting device, it can be modulated at high-speed compared with other lighting sources. VLC uses LEDs, which send data by flashing light at speeds undetectable to the human eye. Widespread use of LEDs in traffic applications and growing interest in Intelligent Transport System (ITS) presents an opportunity for VLC. Data transmission using LED traffic lights, LED road illumination, and LED brake lights are typical application. In this paper, an on-going research, road-to-vehicle visible light communication, will be introduced. The LED array, assumed to be an LED traffic light, is used as a transmitter and it sends data to a moving vehicle. By providing data together with a traffic signal that is visible to a driver, a safety driving support can be realized. Finally, the author suggests readers a glimpse of wealth on "dual use of LEDs" and concludes the paper.

2023-11-28 08:55:12
2 + 1 Twitter

2 0 0 0 OA 蛍光ランプ用安定器・点灯回路50年の発達

著者: 青池南城
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.72, no.5, pp.255-263, 1988-05-01 (Released:2011-07-19)
参考文献数: 9
被引用文献数: 2

2023-10-28 19:44:07
2 + 1 Twitter

2 0 0 0 OA 400Wメタルハライドランプ504灯によるリコー豊中広告塔の照明

著者: 石野領二芹田和尚皆川忠男
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.54, no.Appendix, pp.125, 1970-09-20 (Released:2011-07-19)

2023-07-22 18:22:43
1 + 2 Twitter
1 + 1 Wikipedia

2 0 0 0 OA 燈火管制新規則に就いて

著者: 八木金藏
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.22, no.10, pp.11-31, 1938 (Released:2011-02-09)

2023-07-10 20:06:56
2 + 2 Twitter

2 0 0 0 OA 放射性物質フリー点灯管の開発

著者: 大澤滋齋藤明子石光一磨
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.10, pp.845-848, 2003-10-01 (Released:2011-07-19)
参考文献数: 8

2023-03-28 10:51:02
2 + 1 Twitter

2 0 0 0 OA 視力検査の基準化について

著者: 大島祐之
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.2, pp.73-84, 1965-02-25 (Released:2011-07-19)
参考文献数: 69
被引用文献数: 1 1

2023-02-21 12:57:49
2 + 10 Twitter

2 0 0 0 OA 鉄道車両の色彩調節

著者: 内田重春
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.40, no.2, pp.36-38, 1956 (Released:2011-07-19)

2022-12-07 06:21:03
2 + 3 Twitter

2 0 0 0 OA 高齢者と推奨照度

著者: 高橋貞雄渕田隆義
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.80, no.7, pp.467-471, 1996-07-01 (Released:2011-07-19)
参考文献数: 6

2022-11-20 18:05:21
2 + 0 Twitter

2 0 0 0 OA 照明教室

著者: 戸塚博美才治勉渡辺賢亮浅井孝夫杉山春夫石井弘允
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.58, no.11, pp.598-626, 1974-11-25 (Released:2011-07-19)

2022-10-19 00:53:45
2 + 8 Twitter

2 0 0 0 OA 空間の明るさ感の心理的決定要因光源の強さ感と空間の光量感

著者: 石田泰一郎荻内康雄
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.84, no.8, pp.473-479, 2000-08-01 (Released:2011-07-19)
参考文献数: 13
被引用文献数: 9 6

Which lighting attributes determine the brightness of a room space? We considered the perceived strength of the light source and the perceived amount of light in the space as potential determinants. We examined the relations between the actual brightness of the space and these two perceptions. In the first experiment, subjects evaluated the strength of the light source and the amount of light in the space using reference matching method. The results were consistent among the subjects, indicating they judged each of the two lighting attributes by some common criteria. In the second experiment, the brightness of the space, the strength of the light source, and the amount of light in the space of a model box were evaluated using the magnitude estimation method under various illumination conditions. We found that the brightness of the space was closely correlated with the perceived amount of light but not with the perceived strength of the light source. These results should prove useful in constructing a model for quantitatively estimating the brightness of a space.

2022-07-11 15:51:35
1 知恵袋
1 + 0 Twitter

2 0 0 0 OA エジソンの電球発明と日本の竹

著者: 深津正
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.63, no.10, pp.592-597, 1979-10-25 (Released:2011-07-19)
参考文献数: 14

2022-07-04 09:25:45
2 + 0 Twitter

2 0 0 0 OA 臨界フリッカー融合頻度 (CFF) に対する統計的解析

著者: 及川充大塚正男森邦宏佐藤昌美小口正信
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.8, pp.416-419, 1995-08-01 (Released:2011-07-19)
参考文献数: 9
被引用文献数: 1

We statistically studied several problems related to critical flicker fusion frequency (CFF), which was used to design the interlaced scanning method of television systems. Since CFF values closely depend on the physical and mental state of the observer, statistical treatment of data is essential. We studied the difference between up and down discrimination threshold series and the coincidence between CFF values for equal energy colors, mainly by adapting a variance method analysis.

2022-06-11 20:46:20
2 + 1 Twitter

2 0 0 0 OA 昼光の相関色温度 (1) 主要な変動特性

著者: 関根征士
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.2, pp.57-65, 1995-02-01 (Released:2011-07-19)
参考文献数: 20

Daylight is composed of direct sunlight and skylight. Skylight is direct sunlight and light reflected from the earth's surface that have been scattered by the atmosphere and clouds. The correlated color temperature (CCT) of daylight varies hourly, and the CCT of skylight varies extensively due to changes in the spectral alvedo of the earth's surface, the solar altitude and the angular distance from the sun to a sky component, the atmospheric transmittance of visible radiation and the amount of cloud. This paper discusses causes of variations and local differences of skylight CCT and proposes a formula for skylight CCT as a function of cloud amount.