Development of a light detection system for bidirectional measurements over the solar spectrum and sun course simulations with scale models
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2006.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2007
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| Online Access: | http://hdl.handle.net/1721.1/35660 |
| _version_ | 1826200735207915520 |
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| author | Browne, Courtney, 1982- |
| author2 | Marilyne Anderson. |
| author_facet | Marilyne Anderson. Browne, Courtney, 1982- |
| author_sort | Browne, Courtney, 1982- |
| collection | MIT |
| description | Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2006. |
| first_indexed | 2024-09-23T11:40:59Z |
| format | Thesis |
| id | mit-1721.1/35660 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T11:40:59Z |
| publishDate | 2007 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/356602019-04-11T03:23:03Z Development of a light detection system for bidirectional measurements over the solar spectrum and sun course simulations with scale models Illumination and detection system for light-redirecting materials investigation and scale model simulations Browne, Courtney, 1982- Marilyne Anderson. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Massachusetts Institute of Technology. Dept. of Mechanical Engineering. Mechanical Engineering. Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2006. Includes bibliographical references (leaves 89-93). The use of natural light in building structures can increase energy efficiency and lead to more sustainable architecture. To encourage such use of natural light, a dual experimental device is being developed at MIT to help evaluate the effectiveness of various daylighting approaches, to be used as a goniophotometer for materials and coatings analysis and as a heliodon for studying scale models. The goniophotometer will be used to conduct detailed assessments of the bidirectional transmission or reflecting distribution function ("BT(R)DF") properties of building materials, using a CCD camera to produce a luminance map of the emerging light distribution. The heliodon mode will be used to as an educational tool to perform qualitative evaluations of shadow patterns by simulating sunlight illumination on scale models. This thesis focuses on several aspects of this larger project. This thesis first describes the design of an illumination system appropriate for both functions of the joint goniophotometer/heliodon. (cont.) This thesis then describes the design and manufacture of a light collection system for the goniophotometer mode, specifically the design and fabrication of an acrylic semi-ellipsoid with a half-mirrored coating that focuses the collected light at the CCD camera used for collection and analysis. Finally, this thesis describes the calibration of the light detection system (the color CCD camera) to make its spectral sensitivity match that of the human eye. With this calibration, the CCD camera will be useful not only as a component of the goniophotometer/heliodon system, but may also be adapted to serve as a freestanding multi-point luminance meter for the characterization of BT(R)DFs for various materials of interest. by Courtney A. Browne. S.M. 2007-01-10T16:58:05Z 2007-01-10T16:58:05Z 2006 2006 Thesis http://hdl.handle.net/1721.1/35660 76766147 eng M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 93 leaves 6861361 bytes 6865351 bytes application/pdf application/pdf application/pdf Massachusetts Institute of Technology |
| spellingShingle | Mechanical Engineering. Browne, Courtney, 1982- Development of a light detection system for bidirectional measurements over the solar spectrum and sun course simulations with scale models |
| title | Development of a light detection system for bidirectional measurements over the solar spectrum and sun course simulations with scale models |
| title_full | Development of a light detection system for bidirectional measurements over the solar spectrum and sun course simulations with scale models |
| title_fullStr | Development of a light detection system for bidirectional measurements over the solar spectrum and sun course simulations with scale models |
| title_full_unstemmed | Development of a light detection system for bidirectional measurements over the solar spectrum and sun course simulations with scale models |
| title_short | Development of a light detection system for bidirectional measurements over the solar spectrum and sun course simulations with scale models |
| title_sort | development of a light detection system for bidirectional measurements over the solar spectrum and sun course simulations with scale models |
| topic | Mechanical Engineering. |
| url | http://hdl.handle.net/1721.1/35660 |
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