Ads
related to: buying old refurbished projector bulbsebay.com has been visited by 1M+ users in the past month
discoverpanel.com has been visited by 10K+ users in the past month
Search results
Results from the WOW.Com Content Network
Alternatively different coloured water based dyes were used in each layer, which slowly boiled producing pulsing vapour bubbles when exposed to the heat of the projector lamp with the heat filters removed. Consequently, randomly pulsing and moving blobs of colour were projected on the screen creating the light show.
Older overhead projectors used a tubular quartz bulb which was mounted above a bowl-shaped polished reflector. However, because the lamp was suspended above and outside the reflector, a large amount of light was cast to the sides inside the projector body that was wasted, thus requiring a higher power lamp for sufficient screen illumination.
15 kW xenon short-arc lamp used in IMAX projectors High-speed, slow-motion video of a xenon flashtube recorded at a speed of 44,025 frames per second. A xenon arc lamp is a highly specialized type of gas discharge lamp, an electric light that produces light by passing electricity through ionized xenon gas at high pressure.
On 1 January 2015, 40- and 60-watt bulbs were also banned, although there are exceptions for oven lights, decorative lamps (light bulbs), appliance bulbs, 3-way fixtures, chandeliers and rough service/utility bulbs. [84] Retailers will be allowed to sell their existing inventories imported before the bans. [85]
Video projectors are digital replacements for earlier types of projectors such as slide projectors and overhead projectors. These earlier types of projectors were mostly replaced with digital video projectors throughout the 1990s and early 2000s, [ 1 ] but old analog projectors are still used at some places.
The opaque projector, or episcope is a device which displays opaque materials by shining a bright lamp onto the object from above. The episcope must be distinguished from the diascope , which is a projector used for projecting images of transparent objects (such as films), and from the epidiascope , which is capable of projecting images of both ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
15 kW xenon short-arc lamp used in IMAX projectors. High-intensity discharge lamps (HID lamps) are a type of electrical gas-discharge lamp which produces light by means of an electric arc between tungsten electrodes housed inside a translucent or transparent fused quartz or fused alumina arc tube. [1]
Ads
related to: buying old refurbished projector bulbsebay.com has been visited by 1M+ users in the past month
discoverpanel.com has been visited by 10K+ users in the past month