OBJECTIVE 4.05: COMPARE various forms of lighting.

1. OBJECTIVE 4.05:COMPARE various forms of lighting.

2. Lighting has various functions. Lighting can: • Make a task easier to complete • Contribute to safety • Add beauty and set a mood

3. Lighting sources

4. Natural light comes from natural sources, such as the sun or a flame. Colors are more true in natural lighting.

5. ARTIFICIAL LIGHT includes:

6. Artificial light comes in colors from warm-white to cool-white to daylight.

9. INCANDESCENT LIGHTING is produced by electricity passing through a filament in a glass bulb. This light tends to be warm & flattering.

10. FLUORESCENT LIGHT is produced when chemicals inside a glass tube transform ultraviolet rays. Costs more than incandescent, but lasts a long time.

11. COMPACT FLUORESCENT BULBS (CFLs) are fluorescent lights that screw into regular incandescent light sockets. CFLs save energy and last for about 9000 hours.

12. FIBER OPTIC light flows through hair-like strands of glass. Does not give off any heat.

13. LIGHT EMITING DIODES (LEDs) are made of crystals on silicon chips about the size of a grain of salt.

15. Categories of Lighting

17. 1. General lighting provides a uniform level of lighting throughout the room.

18. DIRECT LIGHTING is a type of general lighting. • Direct lighting shines directly toward an object.

19. INDIRECT LIGHTING is also a type of general lighting. • Indirect lighting shines up and reflects off of ceilings and walls.

20. 2. LOCAL or TASK LIGHTING focuses light on an area where it is most needed. Provides extra light for reading, cooking, sewing, etc.

21. 3. ACCENT LIGHTING is very bright and is aimed directly on a specific object to create a dramatic effect.

22. Ways to deliver light

23. NONSTURCTURAL LIGHTING is not built in and can be easily moved and changed.

24. STRUCTURAL LIGHTING is built-in and wiring is usually hidden.

25. Valance Lighting: • mounted over a window • hidden by a valance • shines light up and down.

26. BRACKET LIGHTS • mounted on a wall • light shines up and down.

27. CORNICE LIGHTING • mounted near the ceiling • shines downward.

28. Cornice lighting over traverse drapery rod

29. COVE LIGHTING mounted near the ceiling directs light upward.

30. RECESSED DOWNLIGHTS (can lights) direct a beam of light from the ceiling downward.

31. SURFACE MOUNTED DOWNLIGHTS are similar to recessed lights, except the “can” is visible.

32. WALL WASHERS spread light over a wall from ceiling to floor.

33. SOFFITT LIGHTING is an enclosed box-like structure with a diffuser at the bottom.

34. LUMINOUS CEILING PANELS are fluorescent tubes placed under plastic panels.

35. TRACK LIGHTING is several light fixtures mounted on a metal strip.

36. STRIP LIGHTS are rows of incandescent bulbs.

37. LIGHTING PROJECT

38. For the rooms assigned to you choose structural and nonstructural (when appropriate) lighting. • List the ROOM NAME • DESCRIBE each light fixture • Quantity • Name of Fixture • Structural or Non-Structural • General, Accent, or Task • Tell the PRICE of each fixture • Give a TOTAL • Add a PICTURE to your pictures page

39. Lighting Pricing Living Room • 2 Delavan Tripod Table Lamp, Non-structural, Task $44.99 each • Fanimation Ceiling Fan with Light, Structural, General $249.99 each • 3 Elco Wall Washers with Metal Baffle, Structural, Accent $11.12 each • TOTAL: $373.33