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  2. Diffuser (optics) - Wikipedia

    en.wikipedia.org/wiki/Diffuser_(optics)

    In optics, a diffuser (also called a light diffuser or optical diffuser) is any material that diffuses or scatters light in some manner to transmit soft light.Diffused light can be easily obtained by reflecting light from a white surface, while more compact diffusers may use translucent material, including ground glass, teflon, opal glass, and greyed glass.

  3. Displacement ventilation - Wikipedia

    en.wikipedia.org/wiki/Displacement_ventilation

    Displacement ventilation is best suited for taller spaces (higher than 3 meters [10 feet]). [2] Standard mixing ventilation may be better suited for smaller spaces where air quality is not as great a concern, such as single-occupant offices, and where the room height is not tall (e.g., lower than 2.3 meters [7.5 feet]).

  4. Optical head-mounted display - Wikipedia

    en.wikipedia.org/wiki/Optical_head-mounted_display

    According to reliable reports, Samsung and Microsoft are expected to develop their own version of Google Glass within six months with a price range of $200 to $500. Samsung has reportedly bought lenses from Lumus, a company based in Israel. Another source says Microsoft is negotiating with Vuzix. [13] In 2006, Apple filed patent for its own HMD ...

  5. Room air distribution - Wikipedia

    en.wikipedia.org/wiki/Room_air_distribution

    Supply diffusers in the ceiling are fed by fan coil units in the ceiling void or by air handling units in a remote plant room. The fan coil or handling unit takes in return air from the ceiling void and mix this with fresh air and cool, or heat it, as required to achieve the room design conditions.

  6. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    Rooftop HVAC unit with view of fresh-air intake vent Ventilation duct with outlet diffuser vent. These are installed throughout a building to move air in or out of rooms. In the middle is a damper to open and close the vent to allow more or less air to enter the space. The control circuit in a household HVAC installation.

  7. Volumetric display - Wikipedia

    en.wikipedia.org/wiki/Volumetric_display

    One system [21] [22] created HPO 3D imagery with a 360-degree field of view by oblique projection onto a vertical diffuser; another [23] projects 24 views onto a rotating controlled-diffusion surface; and another [24] provides 12-view images utilizing a vertically oriented louver.

  8. Duct (flow) - Wikipedia

    en.wikipedia.org/wiki/Duct_(flow)

    Ducts for air pollution control in a 17000 standard cubic feet per minute regenerative thermal oxidizer (RTO). A round galvanized steel duct connecting to a typical diffuser Fire-resistance rated mechanical shaft with HVAC sheet metal ducting and copper piping, as well as "HOW" (Head-Of-Wall) joint between top of concrete block wall and underside of concrete slab, firestopped with ceramic ...

  9. Diffuser - Wikipedia

    en.wikipedia.org/wiki/Diffuser

    Diffuser (hair), a blowdryer attachment that diffuses heat as it dries the hair; Diffuser (heat), a cooking item that is placed above a heating element to separate the cooking utensil from the heat source; Diffuser (optics), a device that spreads out or scatters light; Diffuser (sewage), an aerating device for sewage and industrial waste water ...