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TYPES OF LIGHT DISTRIBUTION:

TYPES OF LIGHT DISTRIBUTION:. DIRECT: SHARPEST CONTRAST BETWEEN LIGHT AND DARK. USED TO EMPHASIZE OBJECTS. INDIRECT: SOURCE IS HIDDEN, LIGHT IS DIRECTED TO CEILING, A COVE OR ANOTHER SURFACE FROM WHICH IT IS REFLECTED.

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TYPES OF LIGHT DISTRIBUTION:

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  1. TYPES OF LIGHT DISTRIBUTION: • DIRECT: SHARPEST CONTRAST BETWEEN LIGHT AND DARK. USED TO EMPHASIZE OBJECTS

  2. INDIRECT: SOURCE IS HIDDEN, LIGHT IS DIRECTED TO CEILING, A COVE OR ANOTHER SURFACE FROM WHICH IT IS REFLECTED.

  3. DIRECT – INDIRECT: LIGHT IS DISTRIBUTED EVENLY IN ALL DIRECTIONS. THE FIXTURE HAS A BULB ON BOTH SIDES,INSIDE AND OUTSIDE THE REFLECTOR.

  4. SEMI DIRECT:MORE LIGHT IS DIRECTED TOWARDS WORK PLANE

  5. SEMI INDIRECT: MORE LIGHT IS DIRECTED TOWARDS CEILING OR UPPER WALL

  6. METHODS OF ILLUMINATING SPACE: • AMBIENT / GENERAL LIGHTING: The overall level of light in a space: COVE, VALANCE, CORNICE, SOFFIT, PANEL LIGHTING • LOCAL: PORTABLE LAMPS AND FIXTURE • ACCENT LIGHTING: Directional lighting to emphasize a particular object or draw attention to a part of the field of view (SPOT LIGHTING THAT EMPHASIZE THE CENTER OF INTEREST)

  7. 3 ASPECTS OF LIGHTING: • FUNCTION: QUALITY AND QUANTITY IS IMPORTANT • READING/WRITING, SHAVING, MAKE-UP • SAFETY: CERTAIN SPACES NEED MORE CARE • STAIRWAY, PATIO, DOORWAY, DRIVEWAY • BEAUTY: GOOD LIGHTING MAKES INTERIOR LAYOUT MORE BEAUTIFUL

  8. LIGHT AFFECTS PEOPLES: • MOOD OR EMOTION • PRODUCTIVITY • AWARENESS

  9. Several general design strategies can be used to update the thinking on howlighting and energy are used. • Keep it Low.Contrary to the older school of thinking, working in adequateyet dim light will not harm the eyes, anymore than listening to music atlower volumes will hurt the ears. Brighter light is not necessarily better.

  10. • Uniform Overhead Fixtures Cannot Provide the Only Source of Light.This isespecially true for offices now that computers are the focus of many peoplesjobs. Additional and appropriate lighting should accompany each individualtask in a work area.

  11. • Make Lighting Specific.Tasks need to be identified carefully and lighting chosenfor each based on the task itself. It is important to take into considerationthe task’s size, importance, the duration of time it needs to be performed, itspriority in relation to other tasks, general lighting in the area, and the physicalcondition, age, and expectations of the person performing the task.

  12. Let the User Control Lighting Options Whenever Practical.Because comfortfactors will vary dramatically from task to task and person to person, the besttask light is one that gives the user the most control over position and intensity.It is also important for the same person to be able to alter light levelsto match his or her changing needs over the course of the day or season.

  13. Consider the fixtures as a design element.Select fixtures that complement theover-all design objective. They should be acompatible scale, color, finishand geometry. Plan placement so that it coordinates with the structure fromevery view, and does not destroy the harmony of the design.

  14. Prepare for the Aging Population.As people’s eyes age, the lenses grow largerand more rigid, requiring more effort for the eye muscles to focus at closerange. As a result, low light makes it harder to see clearly, color identificationis decreased, and intolerance for both direct and reflected glare increases.All these vision changes and their accompanying lightingneeds will increase the challenge for the designer as our population ages.

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