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Lighting Technology

1. “Revolutionizing Technology: 25 Years of Engineering Advancements” Presented by A.PRABHU HOD / EEE MOB:[phone] EMAIL:[email protected] SARDAR RAJA COLLEGE OF ENGINEERING

2. A Journey Through Innovation of Lighting The Timeline of 1800 to 2025 2 SARDAR RAJA COLLEGE OF ENGINEERING

3. Historical sources of illumination 3 SARDAR RAJA COLLEGE OF ENGINEERING

4. 4 SARDAR RAJA COLLEGE OF ENGINEERING

5. Incandescent Light 5 SARDAR RAJA COLLEGE OF ENGINEERING

6. of Incandescent Bulbs Works by heating a filament inside a vacuum-sealed bulb until it glows. Provided warm, steady light but was highly inefficient. Energy loss: 90% of energy converted into heat rather than light. Input-100 W, Output- 1600 lumens, Lifespan- 1000 Hrs. Replaced by CFLs and LEDs Incandescent Light working 6 SARDAR RAJA COLLEGE OF ENGINEERING

7. of Incandescent Bulbs Fluorescence Lamp 7 SARDAR RAJA COLLEGE OF ENGINEERING

8. of Fluorescence Lamp Working Works by exciting mercury vapor to produce ultraviolet light, which then illuminates a phosphor coating. More efficient, consuming less energy and lasting longer. Input-100 W, Output- 6000 lumens, Lifespan- 10000 Hrs. Commonly used in offices, schools, and industrial settings. Declining in use due to the rise of LED technology . 8 SARDAR RAJA COLLEGE OF ENGINEERING

9. Halogen Lamp Introduced in the 1930s, became popular in the 1980s. Uses halogen gas to allow the filament to burn hotter and last longer. Provides brighter, whiter light with better energy efficiency than incandescent bulbs. Automotive headlights, spotlights, and household lighting. Input-100W, Output-1800-2000 lumens, Lifespan- 2000 -4000 Hrs. 9 SARDAR RAJA COLLEGE OF ENGINEERING

10. Works by exciting mercury vapor to produce ultraviolet light. More energy-efficient than incandescent bulbs, using ~75% less energy. Input-100W, Output-4000 lumens Lifespan of ~8,000 to 10,000 hours. Commonly used in offices, schools, and industrial settings. Replaced by LEDs due to mercury content and better efficiency. CFL Lamp 10 SARDAR RAJA COLLEGE OF ENGINEERING

11. First practical LED developed in 1962 Works by passing an electric current through a semiconductor, producing light. Extremely energy-efficient, using up to 90% less power than incandescent bulbs. Input-100W, Output-12000-150000 lumens lifespan: 25,000-50000 hours. Applications: Household lighting, streetlights, TVs, smartphones, and automotive lighting. LED Light 11 SARDAR RAJA COLLEGE OF ENGINEERING

12. Comparision ₹ 20-50 ₹ 100 -300 ₹200-400 ₹ 150 -400 ₹ 25 -500 12 SARDAR RAJA COLLEGE OF ENGINEERING

13. What is smart lighting? (Wi-Fi-enabled, app-controlled lights). Integration with IoT: Smart homes, voice assistants (Alexa, Google Home). Benefits: Customization, energy savings, and convenience. Smart Lighting and Iot Integration 13 SARDAR RAJA COLLEGE OF ENGINEERING

14. Li-Fi: Using light for high-speed wireless communication. Role of lighting in AR/VR and immersive experiences. Integration with 5G and smart cities. Li-Fi 14 SARDAR RAJA COLLEGE OF ENGINEERING

15. Predictions for the next 25 years: Biophilic lighting, AI-driven systems. Emerging trends: Solar-powered lights, self-healing materials. Challenges: Balancing innovation with sustainability. The Future of Lighting Technology 15 SARDAR RAJA COLLEGE OF ENGINEERING

16. Motion Detection: Uses a PIR sensor to detect movement. IoT Control: Remote access via a smartphone app. Energy Efficiency: Reduces unnecessary power consumption. Voice Assistant Compatibility: Works with Alexa/Google Assistant. Scheduling & Customization: Set schedules and adjust brightness. Project Ideas –Smart Lighting system 16 SARDAR RAJA COLLEGE OF ENGINEERING

17. Recap of key advancements over the past 25 years. Innovations such as IoT integration, Li-Fi, and smart lighting solutions. Future trends: Biophilic lighting, AI-driven systems, and sustainable materials. Conclusion 17 SARDAR RAJA COLLEGE OF ENGINEERING

18. 18 RAJA NAGAR, ALANGULAM, TENKASI. Ph:82200 77052 [email protected] SARDAR RAJA COLLEGE OF ENGINEERING