– Consult engineering about your lamp design U, L, Circular, Towel-Bar, and other bent lamp shapes Since aperture lamps are inherently uniform along the lamp’s length, small diameter lamps have allowed edge lit signs to become more slender, efficient, and significantly brighter with no annoying light bands. Aperture lamps are found in many quality and process control applications, from pin hole detectors to inspection equipment in the steel, paper, wood, glass, and textile industries.Ī large and growing area for the aperture fluorescent lamp is edge lighting in signs and displays. LCDL Lighting’s aperture lamps have been commonly used scanners, facsimile machines, copiers and other vision and inspection and imaging systems around the world.
![reflector definition reflector definition](https://cdn.britannica.com/s:500x150/89/96589-004-0EC29AB7.jpg)
In-line (parallel) to the aperture as shown or perpendicular (rotated 90°) or any special orientation requested by the customer. Aperture lamps with bi-pin or RDC bases can also be specified as
![reflector definition reflector definition](https://www.blackstoneexteriors.com/wp-content/uploads/2020/06/file.jpg)
With the precision of LCD’s advanced lamp manufacturing technology, the aperture width can be specified as small as 2 millimeters wide.Īperture lamps can be made in all lengths (50 mm – 2,4 meters) and diameters (3.0 – 38.1mm) as well as containing any phosphor type. The light intensity increases with decreasing aperture width. The size of the aperture is an important consideration with the light intensity being greatest at the aperture surface.
#REFLECTOR DEFINITION WINDOWS#
The clear aperture window is specified in degrees with the most commonly requested aperture windows being 30° and 60°. This “aperture window” concentrates the light in one direction and provides higher intensity often expressed as brightness. This clear area does not contain any phosphor. The pin orientation must be considered to assure that during installation, the lamp has the maximum output directed to the application surface.Īperture lamps are similar in construction to internal reflector fluorescent lamps except that the reflector covers a larger portion of the circumference and there is a clear window in the coating for the light to come through. The two most common orientations are pins In-Line (parallel) and pins Perpendicular to the reflector. When ordering or even specifying a new lamp design with an internal reflector, the pin to reflector orientation must be considered. This improvement in surface illumination by a reflector lamp when compared to a standard lamp is dependent on the fixture design and external environmental conditions, but generally provides 30% – 50% increase in light output striking the desired surface. This reflective layer helps to direct the light to the opposite side of the lamp. The second layer is the phosphor layer- which coats the entire interior surface of the glass envelope. In this kind of lamp, the initial reflective layer is applied, covering half of the inside surface (circumference) of the lamp. Other custom reflectors sizes can be specified and manufactured, but the most common internal reflector is 180°. Reflector lamps are most commonly made with an internal reflective coating of 180° to 235° of the inside of the glass envelope. Reflector lamps can be used in smaller, less costly fixtures to improve light direction while keeping costs down. This internal reflector is not affected by the various environmental conditions. Common applications for this technology ares the flexo graphic, aquarium, scanning, vision markets and essentially, anywhere light distribution needs to be optimally distributed.Īdvantages of the internal reflector are that the light output is not affected by dust or dirt that can accumulate on the top of the lamp nor on existing external reflector housing.
![reflector definition reflector definition](https://finedesignassociates.com/assets/ellipsoidal_reflector_spotlight_diagram.jpg)
Many applications use this technology in conjunction with an external fixture (polished or metallic) which also acts as a reflector to direct the light energy to where it is needed the most. The reflector effectively re-directs the light from the sides and back of the fluorescent tube to the non-reflector area of the lamp coating. Internal Lamp Reflectors are used to direct a portion of a 360° lamp output to increase the magnitude of the output in one direction.