Dissertation > Excellent graduate degree dissertation topics show

Based on visual ergonomics reading lamps parametric assessment model

Author: ChengZuoZuo
Tutor: LinYanDan
School: Fudan University
Course: Physical Electronics
Keywords: table lamp for reading
CLC: TM923.5
Type: Master's thesis
Year: 2011
Downloads: 120
Quote: 2
Read: Download Dissertation

Abstract


Reading lamps are very popular in Chinese markets, with various light sources and optical designs and other characteristics. Nowadays many so-called visual protective reading lamps emerged, and it was advocated that these lamps have the optimized parameters to increase visual comfort and release eye fatigue, which attracts many users, especially students. However, up to now there is few suggestion or specification about the parameters for visual comfort of reading lamp. The quality of reading lamps on the market varies in a wide range, and users tend to feel confused when purchasing them. Among the research on lighting and visual comfort, only a few of them focused on the parameters of reading lamps, and a model for the evaluation is not established. It is very important to establish a model to give a general evlaution of the visual quality of reading lamps, so as to make supplement to the existing specification of reading lamp, to testify the quality of the reading lamps on the markets, and to provide suggestions for the users when purchasing.In the thesis, ergonomic experiments were conducted to study the key parameters of reading lamps that have effects on the visual quality. They were illuminance, Correlated Color Temperature, glare and color quality. The results showed that visual performance increase with illuminance level as well as color temperature; By reducing the reflected glare, the visual contrast of target and background was improved and with the same illuminance level, people’s perception of glare reduced; CRI and CQS cannot reflect people’s perception of color difference exactly, and cannot evaluate people’s preference of color. Based on the experiment results, a model was developed to evaluate the visual quality of reading lamp. In the model, there are three parts, and they are illuminance-CCT (including the effects of illuminance and CCT on performance and preference and the effects of illuminance uniformity), glare (including direct glare and reflected glare) and color quality. In order to testify the effectiveness of the model,6 sample lamps were picked from the existing reading lamps on market. Their physical parameters were measured and evaluation was given based on the model. Meanwhile ergonomic experiments were also conducted to rate their visual comfort. The rating of visual comfort turned out to be in accord with the evaluation from the model.

Related Dissertations

  1. The Research of Low Frequency Square Waveform Electronic Ballast for Low Wattage Metal Halide Lamps,TM923.61
  2. Research on HID Lamp Rectifying Effect,TM923.32
  3. Study on Time Synchronization Method for Urban Lighting Management System,TM923
  4. Intelligent video detection technology based on the traffic lights control,TM923.5
  5. An Optical Design of Interior LED Spotlights Used by a Fresnel Lens,TM923.34
  6. The Design of a LED Stage Lighting Control System Based on DMX+,TM923.53
  7. The Design for Key Technologies of High Power LED Bulb,TM923.34
  8. Research and Design of LED lighting drive power,TM923.34
  9. The Research and Application of LED Drive & Control Technology,TM923.34
  10. Study on Application of Solar Energy Street Lamp Intelligent Controller,TM923.5
  11. With PFC LED lighting research and design of chips used in,TM923.34
  12. Design and Experimental Research of 30KVA Airfield Dimmer,TM923.57
  13. Research on Automotive HID Electronic Ballast Based on Digital Platform,TM923.61
  14. Analysis and Design of Resonant Efficient LED Driver,TM923.34
  15. Research on Passive Current Balancing Method of Multi-output LED Driver Based on Resonant Converter Topology,TM923.34
  16. Research on Methods of Traffic Lights Detection and Recognition in Complex Scenes,TM923.5
  17. Study and Evaluation of the Glare for LED Lighting Fixture,TM923.34
  18. Study on Borates phosphors and Explore in Yellow-Emitting phosphors under Blue-Irradiating Excitation,TM923.04
  19. Lean Six Sigma Application in Manufacturing,TM923.07
  20. Influence of Phosphor Settling on Optical Consistency of High-Power LED,TM923.04
  21. The Design of LED Operation Shadowless Lamp,TM923.34

CLC: > Industrial Technology > Electrotechnical > Electrification,electrical energy application > Electrical lighting > The lights of a variety of purposes
© 2012 www.DissertationTopic.Net  Mobile