✦ LIBER ✦

Preparation and properties of an experimental static concentrator with a new three-dimensional lens

✍ Scribed by K. Yoshioka; S. Goma; S. Hayakawa; T. Saitoh

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 212 KB
Volume: 5
Category: Article
ISSN: 1062-7995
DOI: 10.1002/(sici)1099-159x(199703/04)5:2<139::aid-pip161>3.0.co;2-2

No coin nor oath required. For personal study only.

✦ Synopsis

A new three-dimensional (3D) lens for a static concentrator with a higher optical concentration ratio is designed by the idea that the entry aperture is formed by stacking rectangles rounded at four corners. A concentrator model attached with the new 3D acrylic lens is fabricated and measured under a solar simulator. A high optical concentration ratio of 2.3 is achieved for a single concentrator model at normal incidence and this ratio is kept constant up to an incident angle of 60 8. In addition, the optical properties of a series-connected concentrator model are investigated to compare with those of the single concentrator model. The optical concentration ratio is higher at relatively small incident angles due to re¯ection from the neighbouring lenses and lower at relatively large angles due to shading.

📜 SIMILAR VOLUMES

Improved design of a three-dimensional,

Improved design of a three-dimensional, static concentrator lens using meteorological data

✍ K. Yoshioka; S. Goma; K. Kurokawa; T. Saitoh 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 217 KB 👁 1 views

A three-dimensional, rectangular concentrator lens (3D lens) has been designed by combining two kinds of two-dimensional compound elliptic lenses and meteorological data. Optical concentration ratios of the 3D lenses designed at various halfacceptance angles are calculated and measured as a function

Advances in stereolithography: A new exp

Advances in stereolithography: A new experimental technique in the production of a three-dimensional plastic model with an infrared laser

✍ A. L. M. Jardini; R. F. Maciel; M. A. F. Scarparo; S. R. Andrade; L. F. M. Moura 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 271 KB 👁 2 views

Preparation and properties of a new coat

Preparation and properties of a new coating method for preparing conductive polyester fibers with permanent conductivity

✍ Xin Jin; Changfa Xiao; Shulin An; Yongyue Wang; Guangxia Jia 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 430 KB 👁 1 views

Preparation and properties of a new arom

Preparation and properties of a new aromatic polyamide with an ethoxycarbonyl pendant group: Poly(4,4′-diamino-2′-ethoxycarbonyl-benzanilide terephthalamide)

✍ Seog Joo Kang; Sung Il Hong; Chong Rae Park 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 171 KB 👁 1 views

A new aromatic polyamide containing a pendant ethoxycarbonyl group was successfully synthesized from the reaction between 4,4Ј-diamino-2Ј-ethoxycarbonylbenzanilide and terephthaloyl chloride. The new polymer was soluble in organic solvents such as N-methyl-2-pyrrolidone and dimethylacetamide, and a