Different type of lamps
- 1. Different Type of Lamps Guided by- Designed by- Ghanshyam Sir(E.T) Digant Goradia (130080116010)
- 2. Contents • History • Different types of lamps with details Incandescent lamp Fluorescent lamp Compact fluorescent lamp High-Intensity Discharge lamp Low-pressure Sodium lamp High-pressure Sodium lamp Light Emitting Diodes(LED) BirlaVishwakarmaMahavidyalaya 2
- 3. History • The first incandescent lamp was invented by Thomas Alva Edison and Joseph Swan in nineteenth century. BirlaVishwakarmaMahavidyalaya 3
- 4. Incandescent lamp • Produce heat and brightness with help of filament named Tungsten. • When current is passing through this filament, it produces light. • The hot filament is protected from oxidation with glass which is filled with gas. • Capacity~700 to 1000 hours • Temperature reaches at about 2200°C. BirlaVishwakarmaMahavidyalaya 4
- 5. Different shapes and types of incandescent bulb BirlaVishwakarmaMahavidyalaya 5
- 6. Halogen lamps • High intensity / long life globes are called tungsten halogen or quartz halogen. • These lamps are filled with a halogen gas, usually Krypton. • Halogen bulbs are much brighter than incandescent, and are much more energy efficient for the amount of light produced. • Halogen headlamps are used in many automobiles. • Capacity~ two or three times more than Incandescent lamps. BirlaVishwakarmaMahavidyalaya 6
- 7. Different design of Halogen lamps BirlaVishwakarmaMahavidyalaya 7
- 8. Fluorescent lamps • The most common application of this technology is in tubular fluorescent lamps. • The main benefit of a fluorescent bulb is its long life. • Fluorescent bulbs are very efficient and produce little heat. • Capacity~ between 10000 and 20000 hours. BirlaVishwakarmaMahavidyalaya 8
- 9. Working of Fluorescent lamps • Fluorescent bulbs are filled with argon gas and when electricity is passed through, a small amount of mercury in the tube produces ultraviolet radiation which in turn causes the phosphorous coating of the tube to give off light. BirlaVishwakarmaMahavidyalaya 9
- 10. Different Design of Fluorescent lamps BirlaVishwakarmaMahavidyalaya 10
- 11. Compact Fluorescent Lamps • A Compact Fluorescent Lamp (CFL) has the characteristics and advantages of linear fluorescent lamps but its compact size is achieved by folding the discharge path, retaining high efficacy. • A 20-25 watt CFL is approximately equivalent to a 100 watt incandescent bulb. • Working principle is same as fluorescent lamps. • Capacity up to 10000 hours. BirlaVishwakarmaMahavidyalaya 11
- 12. Different Designs of CFL(s) BirlaVishwakarmaMahavidyalaya 12
- 13. High-Intensity Discharge Lamps • The inner tube is filled with various metals and when the metals heat to the point of evaporation, the bulb produces light. • At high pressure, the mercury discharge is mainly blue and green radiation. • HID lamps are used to light sports fields, parking lots and roadways. • All high-pressure mercury lamps take time to reach full output. • Capacity~ 20000 hours BirlaVishwakarmaMahavidyalaya 13
- 14. Different Designs of HID lamps BirlaVishwakarmaMahavidyalaya 14
- 15. Low-pressure Sodium lamp • LPS lamps produce light through a very similar process as a fluorescent. • They emit a very yellow light and require a ballast like a fluorescent bulb. • LPS lamps are used when the highest efficiency light is needed. • Most LPS lamps are used for driveways, parking lots and pathways. (reason: there is no need color at these place.) BirlaVishwakarmaMahavidyalaya 15
- 16. High-pressure Sodium lamp • High-pressure sodium (HPS) lamps are smaller and contain additional elements such as mercury. • It produces a dark pink glow when first struck, and an intense pinkish orange light when warmed. • As the sodium pressure is increased, the radiation becomes a broad band around the yellow peak, and the appearance is pinkish orange. BirlaVishwakarmaMahavidyalaya 16
- 17. LED (Light Emitting Diodes) • LED bulbs are the light of the future. • They do not have a filament and can give off nearly with different lights. • They consume the least amount of electricity and produce the least amount of heat. • LED bulbs have a very long life.so it’s the next future. • LED bulbs can come in a wide variety of colors and can be used when colored accent lighting is needed. BirlaVishwakarmaMahavidyalaya 17
- 18. Different Designs of LED BirlaVishwakarmaMahavidyalaya 18