ANIMATED PEDESTRIAN COUNTDOWN TRAFFIC LIGHT

Indoor or interior lighting

Indoor lighting for a building is the light source that is being integrated into the inner of the building for some general purpose such as brighten the room and give some special or desired effect to the room. The lighting in a home will changes the mood of person in the room just as it does the perceived size of a room. The lighting in a room either provides illumination for the entirety of the room, it highlights very specific elements. Fixture, placement and type of lighting are all the important aspects of indoor design, and they work in conjunction with color selections, size, availability of natural light and furniture selection. The elements that come together when the right lighting is achieved and this can transform a room into a seamless combination of functionality and style.

How indoor lighting affect us

There is a lots of research says that the effect of indoor light has on our emotional system. This is because the light will being perceived as heat, and the perception of heat can trigger our emotions. Beside that, indoor lighting regulates a lot of human behaviors and activities such as sleep and attentiveness. Research have state that students who study in environments with the natural day lighting can increase in their academic performance. Natural light is always preferred but not always attainable in a classroom or work environment. So, indoor light have affect us in our daily light, we need to be more careful when dealing with the purchasing and installation of indoor light.

PAR 38

A parabolic aluminized reflector lamp (also PARCAN light, PARcan, or simply PAR) is a type of electric lamp that is widely used in commercial, residential, and transportation illumination. Usage includes locomotive headlamps, aircraft landing lights, and residential and commercial recessed lights ("cans" in the United States). They are identical in principle to sealed beam automobile headlights.

This article covers only their use in stage lighting. The lamps and their fixtures are widely used in theatre, concerts and motion picture production when a substantial amount of flat lighting is required for a scene.

In situations where sunlight or other specular light is available, a white foam reflector is often used to accomplish the same effect as a PAR array.

PAR cans are being replaced in some applications by LED PAR cans, which use less electric power and produce a wide array of saturated colors without the use of color filters, when white light is not needed.

PAR lights are often used in theatrical or live music shows. Commonly they are used to generate colours by fitting them with colored sheets called gels. The cans are arranged into rows of different colours and identical rows placed on different sides of the stage. Due to their affordability, they are ideal for colour washes in several different colours. However, because of the lack of control over the beam diameter, shape and sharpness, PARs are rarely used as front of house lights other than for front washes but can be used for special effect lighting such as lighting from directly above or from extreme angles as well as general wash lights overhead/above stage. If used cleverly, par cans can provide low budget productions with good effects.