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2. Lampshade - Wikipedia

   en.wikipedia.org/wiki/Lampshade

   A lamp shade's surfaces have varying proximity to the light bulb or light source itself, depending on the size and shape of the shade. With larger shades this is less of a problem, since the shade provides an ample funnel for the movement of air up through the shade, whereby heat from the bulb leaves the top of the shade through the opening.

3. Banker's lamp - Wikipedia

   en.wikipedia.org/wiki/Banker's_Lamp

   An example of a banker's lamp. The banker's lamp is a style of electric desk or table lamp often characterized by a brass stand, green glass lamp shade, and pull-chain switch. Such a lamp was first patented in the United States under the Emeralite brand name. Banker's lamps have become iconic, often used in libraries and offices in films and TV ...

4. Lampshades made from human skin - Wikipedia

   en.wikipedia.org/wiki/Lampshades_made_from_human...

   The lamp-foot was made from a human foot and shinbone; on the shade one saw tattoos and even nipples. On the occasion of the birthday party of Koch [August 1941] he was tasked by the camp doctor Hoven to bring the lamp to the Kochs' villa. This he did. One of the party guests told him later that the presentation of the lamp had been a huge success.

5. Light fixture - Wikipedia

   en.wikipedia.org/wiki/Light_fixture

   Portable light fixtures are often called lamps, as in table lamp or desk lamp. In technical terminology, the lamp is the light source, which, in casual terminology, is called the light bulb. Both the International Electrotechnical Commission (IEC) and the Illuminating Engineering Society (IES) recommend the term luminaire for technical use. [4]

6. List of light sources - Wikipedia

   en.wikipedia.org/wiki/List_of_light_sources

   This is a list of sources of light, the visible part of the electromagnetic spectrum.Light sources produce photons from another energy source, such as heat, chemical reactions, or conversion of mass or a different frequency of electromagnetic energy, and include light bulbs and stars like the Sun. Reflectors (such as the moon, cat's eyes, and mirrors) do not actually produce the light that ...

7. Shadow - Wikipedia

   en.wikipedia.org/wiki/Shadow

   A point source of light casts only a simple shadow, called an "umbra". For a non-point or "extended" source of light, the shadow is divided into the umbra, penumbra, and antumbra. The wider the light source, the more blurred the shadow becomes. If two penumbras overlap, the shadows appear to attract and merge. This is known as the shadow ...