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Using photoluminescent technology JALITE UL Listed Exit signs harvest the energy from existing light sources in your facility to provide a long lasting and highly visible sign, even after a loss of power. JALITE UL924 Listed Photoluminescent Exit Signs come in Red or to be recommended safety Green and have convenient field applied chevrons to indicate direction when necessary. They are also available in printed PVC or Aluminum and products have been designed to meet both the 50 feet and 75 feet observation requirments after 90 minutes of total darkness. JALITE has pionnered the design and listing of UL924 Listed Exit signs using the ISO 7010 Graphical symbol with the meaning EXIT. A dedicated product site is available for UL 924 Listed EXIT signs at www.ul-exit-sign.com
JALITE, as a founder member of the Photoluminescent Safety Products Association, can be proud of the achievements over the last 20 years with an ongoing dedication to the promotion and development of photoluminescent products in safety applications. The Association has already made presentations to the 3rd World Photoluminescent Congress held in early 2012 in Portugal.. For more details of the "PSPA" Association please visit the web site at www.pspa.org.uk
JALITE Asia Limited Office F2, 16/F., MG Tower, 133 Hoi Bun Road, Kwun Tong, Kowloon Hong Kong SAR Tel: +852 3426 9266 Fax: +852 3528 0757 E-mail: email@example.com or firstname.lastname@example.org www.jalite-asia.com
Activator ionic impurity in a host material which acts as a luminescing centre, also called dopant. Afterglow general emission of light after a source of excitation energy is removed, usually by phosphorescence. Anti-Stokes a material which converts low energy light to high energy light by photoluminescence. Also called up-converter. Candela unit of luminous intensity. Cascading multiple absorption/emission cycles in a material where the emission from one cycle is matched to the absorption of the next. Cathodoluminescence luminescence where the initial energy comes from fast moving electron bombardment, such as on a television screen or computer monitor. Charging excitation of a phosphorescent material, usually by incident light. Chemiluminescence luminescence where the initial energy comes from chemical reactions, such as phosphorous burning in oxygen. Correlated colour temperature the colour of white light sources, the temperature of the black body radiator which produces the chromaticity most similar to the light source. Unit: °K. Daylight fluorescence (DF) fluorescence where the emission is in the visible spectrum. DIN67510 Part 1 specification describing afterglow performance in a standard way, in the form a/b - c - d - e, where a is afterglow brightness in mcd/m2 after ten minutes, b is afterglow brightness after sixty minutes, c is the decay period in minutes to 0.3 mcd/m2, d is excitation colour code, e is emission colour code. Parts 2 and 3 refer to in situ testing of photoluminescent items. Dopant ionic activator commonly used in inorganic phosphors. Excited state condition of a charged phosphor before emission. Electroluminescence (EL) luminescence where the initial energy comes from electric fields, usually alternating. Fluor a substance exhibiting fluorescence. Fluorescence very fast absorption and emission of photons where there is no appreciable afterglow. No electron spin inversion is involved. Flux (light) luminous intensity, usually of a light source, per unit solid angle; Unit: lumen. Illuminant A, B, C incandescent illumination in the range 380nm to 770nm, respectively 2856K (yellow), 4874K (mean noon sunlight) and 6774K (average daylight, blue). Illuminant D daylight illuminants defined from 300-830nm, designated with a two digit subscript to describe Correlated Colour Temperature, e.g. D65 indicates 6500K, close to Illuminant C. Illumination luminous flux, usually of incident light. Units: lux or lumens per square metre. Infrared part of the electromagnet spectrum immediately less energetic than visible light, ranging from around 700 nanometres to 10 microns wavelength. Intersystem crossing transfer from one molecular angular momentum state to another by electron spin inversion. Principal of physical phosphorescence. Killing quenching. Light output quantum efficiency multiplied by amount of absorbed radiation. Lumen unit of light flux. One lumen equals the flux emitted into a solid angle of one steradian by a point source of one candela. Luminance brightness, usually of a surface, i.e. luminous intensity per unit area. unit: candelas per square metre, usually expressed in millicandelas per square metre. Luminescence emission of light from a substance unaccompanied by heat. Luminophor luminescent material. Luminous directional reflectance reflectance of a surface in given directions of illumination and view. The ratio of the brightness of a surface to the brightness that an ideally diffusing, perfectly white surface would have if illuminated in the same way. Units: none. Luminous intensity a fundamental unit derived from black body radiation at set conditions in a given direction. Unit: candela. Luminous efficiency (L) luminous flux emitted by a source, per unit of power consumed. Unit: lumens per Watt. Lux unit of illuminance, lumens per square metre. In imperial units, one footcandle is approximately 10 lux. Optically active a) luminescent, b) able to change the polarity of incident light during reflection. Phosphor a substance exhibiting the property of phosphorescence. Phosphorescence slower absorption and emission of photons where afterglow is usually apparent, involving electron spin inversion allowing absorbed energy to be trapped for a period before being released as photons. Photoluminescence luminescence where the energy comes from incident light. Includes fluorescent and phosphorescent processes. Quantum yield (q) ratio of energy emitted by a luminescent substance to that absorbed, expressed as a percentage or decimal part of unity. Units: none. Quenching the loss of luminescent emissions to absorbing centres, or the addition of an agent to do this. Also called killing. Radiant efficiency ratio of emitted luminescent power to power absorbed from exciting radiation. Radioluminescence (RL) luminescence where the initial energy comes from radioactive decay, e.g. as with tritium. Products relying on RL are also called self emitters. Resonance radiation fast fluorescence with no internal loss of energy. Saturation charging of a phosphorescent material to maximum. Scintillator photoluminescent material with absorption at very low wavelengths, i.e. gamma or X rays. Self emitter radioluminescent material. Stokes shift difference in wavelength peaks between absorption and emission curves in photoluminescent materials, positive where wavelength increases, negative where wavelength decreases. Unit: nanometres. Strontium Aluminate a collective term for a group of crystalline phosphors derived from Strontium Oxide and Alumina (and silica) singally or doubly doped with rare earths Europium and Dysprosium. Thermoluminescence luminescence where heat energy triggers emission of photons from internal energy previously stored. Triboluminescence short lived luminescence caused by the violent breaking of chemical bonds, often associated with frictional forces. Ultraviolet part of the electromagnet spectrum immediately more energetic than visible light, ranging from approx. 100 nanometres (VUV) to 400 nanometres (UVA) wavelength. Up-conversion photoluminescent process converting lower energy incident light to higher energy emitted light. Also called anti-Stokes.
Fire Safety Management has 5 key focus areas with a sixth added "Contingency". 1. Prevention 2. Escape 3. Communication 4. Confinement 5. Suppression 6. Contingency JALITE Safety signs and safety way-guidance systems support and reinforce each of these strategy focus areas and is a key element of the specific communication strategy. The contingency around the total failure of any obligatory, regulation electrical emergency lighting has always created demand for photoluminescent way guidance systems as well as the need for low location assistance to egress. A formal safety sign and escape route survey is an essential part of any fire safety policy as well as featuring as an integral part of fire risk assessment.
A Solid, Secure Partnership JALITE has recognized that photoluminecent safety products need local customer support and services in order for end user clients to maximize their benefits from these products. Furthermore, the enormous breadth and depth of applications for photoluminescence in safety requires good client-supplier relationships. JALITE Distributors share the prime values of quality, integrity and providing a bundle of value added services and benefits along with the products. Best practice requires that little extra effort without a price tag. If you have an "above minimum requirements" client base when it comes to safety and you are interested to take on the JALITE range of products best suited to your clients and service capabilities just call or e-mail or fill in our contact form.
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Jalite is active in over 109 countries
In the 35 year history of JALITE, products have been developed and supplied to over 100 countries in the world and often with safety messages in the local language or with dual language, with the International Safety language English. It has been a JALITE tradition to fully comply with National and International Standards for the design of our products. Now, with JALITE presence on three continents and Authorised Distribtors world wide we can be considered local throughout the world. Interested to Distribute JALITE products in your area of safety or your district and country? Just send us a mail and contact us now with an introduction.