Journal of the Illuminating Engineering Institute of Japan (Shomei Gakkai Shi)最新文献_第3页

Plan and Evaluation of Nightscape Lighting Design by Analyzing the Case of Kokura Castle in Kitakyushu 夜景照明设计的规划与评价——以北九州小仓城为例

Journal of the Illuminating Engineering Institute of Japan (Shomei Gakkai Shi) Pub Date : 2020-12-24 DOI: 10.2150/jieij.20000599

M. Matsushita, S. Shoyama, Takeshi Morita

引用次数: 0

Effect of Spectral Distribution of Illumination on Color Appearance and Texture Impression of the Fabric with Different Surface Properties 光照光谱分布对不同表面性能织物颜色外观和纹理印象的影响

Journal of the Illuminating Engineering Institute of Japan (Shomei Gakkai Shi) Pub Date : 2020-11-01 DOI: 10.2150/jieij.190000586

Shuilan He, Yuki Nakajima, T. Fuchida

{"title":"Effect of Spectral Distribution of Illumination on Color Appearance and Texture Impression of the Fabric with Different Surface Properties","authors":"Shuilan He, Yuki Nakajima, T. Fuchida","doi":"10.2150/jieij.190000586","DOIUrl":"https://doi.org/10.2150/jieij.190000586","url":null,"abstract":"We previously revealed that the appearance of the color of glossy fabric and the effect of saturation and colorfulness on the texture impression are signiﬁcant. In this study, we examined the color appearance of fabrics with various surface character istics and the effect of illumination and spectral distribution on texture impression. We ﬁrst evaluated the color appearance and texture impression of the fabric with various surface characteristics under different illuminance levels. We then evaluated the color appearance and texture impression of fabric under illumination by changing color rendering by spectral distribution. The evaluation of the color appearance of the fabric was more likely determined only by color saturation and colorfulness than the difference in the surface characteristics of the fabric. The texture impression of the fabric was also affected by the difference in the surface characteristics of the fabric (especially with or without specular reﬂection) in addition to the dif ferences in saturation and colorfulness. Under lower illuminance, the fabric tended to be evaluated as smooth because the visual-acuity reduction due to the low illuminance under dim light reduced the ability of the observer to recognize the fabric surface structure. It is thought that this affected the evaluation of texture impression.","PeriodicalId":35437,"journal":{"name":"Journal of the Illuminating Engineering Institute of Japan (Shomei Gakkai Shi)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43309011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Sunlight Type LED on Productivity 日光型LED对生产效率的影响

Journal of the Illuminating Engineering Institute of Japan (Shomei Gakkai Shi) Pub Date : 2020-11-01 DOI: 10.2150/jieij.190000587

Y. Kamiya, Y. Komatsu, Emi Kaga

引用次数: 0

Proposal of Protocol for Construction of Light-Quality Tunable Illumination System using Polymer Dispersed Liquid Crystal 聚合物分散液晶构建光质可调照明系统方案的建议

Journal of the Illuminating Engineering Institute of Japan (Shomei Gakkai Shi) Pub Date : 2020-02-01 DOI: 10.2150/jieij.190000588

K. Nakayama, Michiko Nakayama

{"title":"Proposal of Protocol for Construction of Light-Quality Tunable Illumination System using Polymer Dispersed Liquid Crystal","authors":"K. Nakayama, Michiko Nakayama","doi":"10.2150/jieij.190000588","DOIUrl":"https://doi.org/10.2150/jieij.190000588","url":null,"abstract":"ABSTRACT Research into shadow quality or light quality has exchanged light diffusers or changed the arrangement of parts to change light quality. This necessity has restricted the type of psychological experiments that can be realized. In this study, electrically controllable polymer dispersed liquid crystal (PDLC) was applied for a continuously tuned diffuser. This illumination system using PDLC finely tunes light quality, which influences shadow quality. Though light quality can only be tuned by finely controlling applied voltage to the PDLC, the light quality is not proportional to the controlled applied voltage. To construct an interface based on the magnitude of shadow softness (i.e., the light quality), the magnitude estimation (ME) method was used to estimate the relationship between the magnitude of shadow softness and applied voltage to the PDLC. When the applied voltage was adjusted with equal intervals in the magnitude of shadow softness obtained by ME, the shadows resulting under the illumination system using PDLC were felt at almost equal intervals in the shadow softness. Although this proposed protocol for constructing a light-quality tunable illumination system using PDLC may be incomplete at this stage, it is expected to motivate new research into light and shadow quality. PDLC light diffuser method of magnitude estimation shadow quality light quality","PeriodicalId":35437,"journal":{"name":"Journal of the Illuminating Engineering Institute of Japan (Shomei Gakkai Shi)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42283404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on Realization of CIE Standard Illuminant by LED Spectrally Tunable Light Source with UV-LED and Visible-LED 用UV-LED和可见光LED光谱可调谐光源实现CIE标准光源的研究

Journal of the Illuminating Engineering Institute of Japan (Shomei Gakkai Shi) Pub Date : 2020-02-01 DOI: 10.2150/jieij.190000585

K. Godo, Tamura Yutaka, O. Watari

引用次数: 0

Colored LED Lights to Improve the Color Discrimination for People with Color Blindness 彩色LED灯提高色盲人士的辨色能力

Journal of the Illuminating Engineering Institute of Japan (Shomei Gakkai Shi) Pub Date : 2019-10-01 DOI: 10.2150/JIEIJ.190000581

S. Tamura, Y. Shigeri

引用次数: 0

Examination of Low-Illuminance Environment Considering Purpose and Significance of Public Bath Facilities 考虑公共浴室设施的目的和意义的低照度环境检测

Journal of the Illuminating Engineering Institute of Japan (Shomei Gakkai Shi) Pub Date : 2019-10-01 DOI: 10.2150/JIEIJ.190000583

Yuho Nakamura, Shigeo Kobayashi, Toshiyuki Nakamura

引用次数: 0

Simple Construction of Calibration Curve and Surface Roughness Detection in Surface Roughness Detection by Speckle Contrast Method 散斑对比法表面粗糙度检测中标定曲线的简单构造与表面粗糙度检测

Journal of the Illuminating Engineering Institute of Japan (Shomei Gakkai Shi) Pub Date : 2019-06-01 DOI: 10.2150/JIEIJ.190000570

T. Wada, Shouhei Koyama, H. Ishizawa

{"title":"Simple Construction of Calibration Curve and Surface Roughness Detection in Surface Roughness Detection by Speckle Contrast Method","authors":"T. Wada, Shouhei Koyama, H. Ishizawa","doi":"10.2150/JIEIJ.190000570","DOIUrl":"https://doi.org/10.2150/JIEIJ.190000570","url":null,"abstract":"The Surface roughness is one of the important factors related to the appearance and performance of products, and the interest is further increased in various kinds of manufacturing.This paper describes a novel method for measuring surface roughness by laser speckle method.In the proposed method, instead of directly fitting with surface roughness and speckle feature amount, indirect parameters are obtained by converting the functional system. The polished metal pieces are used as the sample set.The prediction formula was obtained based on the reference value measured by the conventional method, and the prediction error of the prediction formula was verified by applying the sample of unknown surface roughness. In addition, we confirmed that the prediction accuracy improves by limiting the range for constructing the prediction formula. This method enables us to quickly detect the surface roughness by using a very simple configuration and a simple analysis method. A system that uses the method can be constructed calibration curve of surface roughness.","PeriodicalId":35437,"journal":{"name":"Journal of the Illuminating Engineering Institute of Japan (Shomei Gakkai Shi)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2150/JIEIJ.190000570","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41849645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of Cleanliness Evaluation System for Surgical Instruments Using Near-Infrared Spectroscopy and Verification of Discrimination Evaluation Method 近红外光谱手术器械洁净度评价系统的研制及判别评价方法的验证

Journal of the Illuminating Engineering Institute of Japan (Shomei Gakkai Shi) Pub Date : 2019-06-01 DOI: 10.2150/JIEIJ.180000576

Shouhei Koyama, H. Ishizawa, Kazumasa Ohi, Nobutaka Tsurushima

引用次数: 0

Establishment of Nonlinearity Evaluation Method Under Over-filled Illumination for Optical Sensor in Photometry 光度测量中光学传感器过满照明下非线性评价方法的建立

Journal of the Illuminating Engineering Institute of Japan (Shomei Gakkai Shi) Pub Date : 2019-06-01 DOI: 10.2150/JIEIJ.180000579

M. Tanabe, K. Kinoshita

引用次数: 0