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E E E 0 5 L i g h t B l e n d i n g f o r D i f f e r e n t F e - PowerPoint PPT Presentation

Nov 14, 2023 •1.43k likes •1.83k views

E E E 0 5 L i g h t B l e n d i n g f o r D i f f e r e n t F e e l i n g V i c t o r i a a n d M e n g K e Pr Presentation esentation Ou Outl tline ine 02 04 Methodology Conclusion 03 01 Data Introducti Representation on

  1. E E E 0 5 L i g h t B l e n d i n g f o r D i f f e r e n t F e e l i n g V i c t o r i a a n d M e n g K e

  2. Pr Presentation esentation Ou Outl tline ine 02 04 Methodology Conclusion 03 01 Data Introducti Representation on and Analysis 2

  4. Artificial light, as opposed to natural What is light, refers to any Artificial light source that is produced by electrical Lighting? means. Humans have been exposed to artificial lighting since the 1880s, but they have not fully adapted to it.

  5. Pro roblems blems fr from om Artifi rtifici cial al Li Lighting ghting Poor Circadian Rhythm L o w e r e d P o o r e r S l e e p H e a l t h p r o b l e m s P r o d u c t i v i t y Q u a l i t y

  6. Pro roblems blems fr from om Artifi rtifici cial al Li Lighting ghting Source: https://www.andrewjensen.net/how-office-lighting- affects-productivity/

  7. Pro roblems blems fr from om Artifi rtifici cial al Li Lighting ghting Source: https://sleepswag.com/artificial-light-affects- sleep/

  8. Pr Project oject Ai Aim • As artificial lighting is widely used for its purposes, it would be unrealistic to • Instead, our project aims to eradicate artificial light minimize the impacts of totally. artificial lighting.

  9. So Solution lution • Create a light bulb that changes its color temperature with the variation with the sun • The higher the color temperature, the ‘whiter’ the light • The lower the color temperature, the ‘warmer’ or more yellowish the light will be

  11. Methodology

  12. Device CL CL-500A Illuminance Spectrophotometer (CIS) I t i s u s e d f o r t h e e v a l u a t i o n o f l i g h t a n d i t c a n m e a s u r e i l l u m i n a n c e , c o l o u r t e m p e r a t u r e , C o l o u r R e n d e r i n g I n d e x ( C R I ) , c h r o m a t i c i t y , a n d s p e c t r a l p o w e r d i s t r i b u t i o n .

  13. Device

  14. Device

  15. 03 02 01 STEP STEP STEP M e a s u r e C o l o r M e a s u r e C o l o r C o m p a r e Te m p e r a t u r e o f Te m p e r a t u r e o f R e s u l t s S u n l i g h t Ar t i f i c i a l L i g h t s

  16. 03 02 01 STEP STEP STEP Measure Color Temperature of Sunlight

  17. • 9 a m – 6 . 3 0 p m • A t a n i n t e r v a l o f 3 0 m i n s • T h r e e d i f f e r e n t l o c a t i o n s

  18. 01 02 03 STEP STEP STEP Measure Color Temperature of Artificial Lights

  20. 03 01 02 STEP STEP STEP Compare Results

  21. Data Representation and Analysis

  22. S u n l i g h t

  23. S u n l i g h t Graph of Color Temperature for Sunlight 7000 6765 6461 6437 6570 6403 6274 6500 6272 5981 6091 5905 5857 5765 5863 6000 Color Temperature 5580 5552 5500 5210 5183 5082 5000 4594 4559 4500 4000 3500 3000 900 930 100010301100113012001230130013301400143015001530160016301700173018001830 Time of Day Sunlight

  24. A r t i f i c i a l L i g h t

  25. A r t i f i c i a l L i g h t

  26. Graph of Color Temperature for Sunlight and LED light 8000 6765 7000 6570 6461 6437 6403 6274 6272 6091 5981 5898 5905 5863 5857 5765 6000 5580 5552 5439 5439 5210 5183 5172 5172 5082 Color Temperature 5000 4616 4616 4594 4559 4049 4049 3980 3980 3884 3884 3828 4000 3452 3452 2968 2968 2858 3000 2709 2000 1000 0 900 930 1000 1030 1100 1130 1200 1230 1300 1330 1400 1430 1500 1530 1600 1630 1700 1730 1800 1830 Time of Day Sunlight LED light

  27. Analysis • Colour temperatures of sunlight are measured on sunny days and they can be even higher on cloudy or rainy days • Artificial lights available in the market can only mimic sunlight in terms of trend instead of the exact values • The colour temperatures of artificial lights are consistently lower than those of sunlight

  28. Conclusion

  29. EAKNESSES

  30. TRENGHS

  31. Extensions to This Project • A d d i n o t h e r p a r a m e t e r s o f l i g h t t o i m p r o v e t h e u s e f u l n e s s a n d p r a c t i c a l i t y o f t h e l i g h t b u l b s .

  32. Aspirations for This Project • A i d o t h e r f u t u r e p r o j e c t s i n c r e a t i n g m o r e s u s t a i n a b l e a r t i f i c i a l l i g h t i n g f o r o u r d a i l y l i v e s • S u c h l i g h t b u l b s t o b e u s e d i n o f f i c e s a n d w o r k p l a c e s • A l l o w p e o p l e t o l e a r n a b o u t t h e u n f o r e s e e n d a n g e r s o f a r t i f i c i a l l i g h t i n g

  33. Thank You

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