Classification of illumination & luminaire
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The document discusses different types of lighting used in photography and film production. It describes the key light, fill light, and backlight, which are the three main lights used to illuminate a subject from different angles and provide depth. The key light acts as the main light, the fill light reduces shadows, and the backlight provides subtle highlighting. Together these lights can make a subject appear three-dimensional. The document also explains other types of lighting like general, task, accent, and street lighting used in different contexts.
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Classification of illumination & luminaire
- 3. It is usually the strongest and has the most influence on the look of the scene. The key light is placed to one side of the camera/subject so that this side is well lit and the other has some shadow. It provides excellent modelling by highlighting the shape and contours of the subject. It provides hard light, like that from the sun on a clear day: a bright light with hard-edged shadows.
- 4. It is used to fill the shadows created by the key. The fill will usually be softer and less bright than the key and casts soft indistinct shadows. Its light can be likened to indirect sunlight or reflected light from the environment. It is sometimes referred to as the 'highlight' as it is often used to give a sheen or highlight to an actor's hair.
- 5. Rather than providing direct lighting (which the key and fill give), its purpose is purely for modelling to provide definition and subtle highlights around the subject's outlines. This helps separate the subject from the background and give a three-dimensional look.
- 6. key light only the key light has been placed to the right of the camera and has created very sharp shadows. It looks okay is identifiably an apple but doesn't show any real depth.
- 7. The fill light is usually on the opposite side of the camera from the key, so in this case it is on the left. As it should be a soft light (created by use of filters or diffusers) the effect is similar to the key except the shadows are less defined. The apple looks flat and artificial. fill light only
- 8. Using both key and fill gives that all important depth so that the image looks more three-dimensional. key + fill
- 9. The backlight provides very subtle highlighting to the apple, most of which is in darkness. backlight only
- 10. Beautiful! A complete view of the apple. a fourth light could be used at the back to remove the remaining shadows. key + fill + back
- 11. key light only fill light only key + fill backlight only key + fill + back
- 12. Is also known as Ambient lighting; is the overall light inside working plane. This is the lighting that light the main whole area moderately. This type is commonly seen in markets & small shops. The arrangement is typical and lighting level is uniform in all areas. Overall uniformity can be easily achieved by using General lighting.
- 13. Is also known as Ambient lighting; is the overall light inside working plane. This is the lighting that light the main whole area moderately. This type is commonly seen in markets & small shops. The arrangement is typical and lighting level is uniform in all areas. Overall uniformity can be easily achieved by using General lighting.
- 14. Can be relate with task light where we need to highlight a specific small working area with controllable beam.
- 15. It needs to be glare-free. Effective task lighting enhances visual clarity and keeps the eye from getting tired. Several strategies can be apply to achieve task lighting some are below: 1. Localized avg. lighting, where lamp supplies both ambient light & task light 2. Freely adjustable task light 3. Asymmetric task light to avoid the glare factor.
- 16. Lighting that call attention or adds interest to a particular object or usual feature of interest in a room. Highlight emphasizes illumination with a strong light; backlight illuminates from behind in order to embrace depth or to separate the object from the background.
- 17. Most commonly seen in branded retail shops. Can be achieved by several ways by using different types of lanterns.
- 18. Candlelight and firelight is also a part of natural light. The quality of sunlight will depend on the time of the day and the season within the year. Where as candlelight/firelight is the light that moveable.
- 20. A lamp designed to project or diffuse a comparatively uniform level of illumination over a large area.
- 21. The main purpose of the street light is to provide adequate illumination of the street and its surrounding to the driver point of view.
- 23. Spotlights are most commonly used in concerts, musicals and large scale presentations where highlighting a specific mobile individual is critical. Spotlights are sometimes located overhead on catwalks.
- 25. Lighting provide by adjustable spotlights mounted a long narrow, ceiling-or-wall-mounted metal track through which currents is conducted.
- 26. Light strip is now a day most commonly used to illuminate sign boards by applying on the corner of it.
- 27. A luminaire having a trough-shaped reflector holding one or more fluorescent lamps.
- 28. A lighting fixture suspended from a ceiling or wall by a flexible cord, by which it can be released or lowered.
- 31. Most lamps direct light downward, with the exception of a torchiere, which is a floor map that directs its light upward. Lamps are often used as task lights, particularly for reading, but can also provide ambient light.