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UVP Mineralight® Series UV Lamps
The Mineralight® series UV lamps are engineered to provide a more uniform UV coverage either more intense and or over a comparatively wider area than that provided by the High Intensity series, the EL series, or other smaller cousins. The Mineralight® lamps are AC powered and emit either one wavelength of UV, or with the UVLS-225D the user can select either of two wavelengths of UV. These are heavier yet easily manageable, and robustly constructed. These are typically installed into a display cabinet, or suspended over the object to be illuminated. These are often found in a laboratory setting where intense shortwave is used for sterilization, to destroy bacteria, for photochemistry, phosphorescence, and in lapidary applications.
R-52G Mineralight® Quartz Grid Lamp
Right: UVP R-52G high output shortwave quartz grid lamp (35,793 bytes).
An additional benefit is that these lamps generate less heat that a comparable coverage tube array. Their comparatively high power output, cooler operation, combined with their extreme longevity makes these lamps an idea choice for illuminating displays over a long term, curing epoxies, removing trace amounts of organic contaminants, electronic component cleaning, ozone generators, erasing Eproms and other scientific and environmental uses. These lamps may require up to five minutes of warm up time to reach full output capacity.
The R-52G output intensity is typically 1250 µW/cm2 at six inches from the filter.
All display lamps are AC powered and plug into a conventional power outlet. Each is turned on and off by means of a single toggle switch. Most lamps turn on nearly instantaneously, like a household fluorescent lamp, and reach their peak of UV emissivity in seconds. The UVGD-69 reaches its peak intensity after a warm up period of about five minutes.
Left: R-52G Mineralight® grid lamp attached sideways to its ballast (24,051 bytes).
Ballasted lamps rely on either a separate transformer ballast chassis connected to the lamp by a cord, or some incorporate a self-ballasted bulb. The ballast is required to transform and regulate the AC current to start and then drive the grid. The ballasted lamps with an external transformer base will usually incorporate a brace upon which the lamp may be stored as is shown in the image at left. This ballast results in a lamp that may be more than twice as heavy as a conventional AC tube lamp, but the ballast is required to transform the AC current so that it can light the gas in the grid.
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The dimensions of the lamp is: R-52G Lamp: 7.8H x 16L x 7.8W inches (198 x 406 x 198mm), weight 9.5 lbs. (4.3 kg)
Right: UVP UVGD-68, a high output shortwave quartz grid Display series lamp (35,793 bytes). Most of these are higher intensity AC powered lamps that incorporate multiple tubes so that the user can work in one or either of two wavelengths of the ultraviolet: 254nm, or 365nm, or 254 and 365nm. At first glance a UV tube lamp such as the UVL-225D Mineralight® resembles a conventional fluorescent fixture with two or more tubes. The lamp may have a wider profile when it incorporates a grid element. The UVGD-68 differs from the other lamps in this series since its source is a 254nm quartz grid element; the 'G' in it model code indicates this is a grid lamp. Grid lamps are mercury photochemical lamps with glass tubing bent back and forth to form several parallel bars, typically in either a rectangular or square form. They are designed for applications where shortwave 254nm UV energy is needed. The Grid Lamp can be formed so that it concentrates the energy into the specific area required. The illumination provided is uniform across the gird; without hot spots or diminished areas of output. And these generate less heat that a comparable coverage tube array. Their comparatively high power output combined with their longevity makes these lamps an idea choice for illuminating displays over a long term, curing epoxies, removing trace amounts of organic contaminants, electronic component cleaning, ozone generators, erasing Eproms and other scientific and environmental uses. These lamps may require up to five minutes of warm up time to reach full output capacity. Each 225D series lamp will incorporate either two 25 watt tubes or a 254nm quartz grid element. The UVSL-225D is a a multi wavelength ultraviolet lamp that can emit either of two wavelengths of ultraviolet light either 254nm or 365nm illumination. All display lamps are AC powered and plug into a conventional power outlet. Each is turned on and off by means of a single toggle switch. Most lamps turn on nearly instantaneously, like a household fluorescent lamp, and reach their peak of UV emissivity in seconds. The UVGD-69 reaches its peak intensity after a warm up period of about five minutes.
UVGD-68: 18.5 x 4.75W x 5H inches (470 x 121 x 127mm), weight 10 lbs. (4.6 kg) Left: UVL-225D Mineralight® lamp (16,104 bytes).
Company Seven can provide customers with information about lamp longevity upon request. This is usually expressed in terms of continuous hours of operation. While it is usually a simple matter to replace a UV lamp bulb, and we provide instructions with each lamp about how to do so, longevity is of a concern when the lamp is to be used installed into some hard to access location where it may be inconvenient to replace the bulb. So whenever time or labor costs to change a bulb are factors in the decision making process then we recommend:
Company Seven hosts numerous articles and users guides at our UVP Notes & Interesting Articles page and in our Library including:
As amazing as it can be to explore the ultraviolet spectrum, this is not child’s play! For a good overview of working in the UV and explanations of proper precautions consult Ultraviolet Spectrum Primer, the illustrated article by Company Seven explaining the ultraviolet (UV) spectrum as it applies to photographing or imaging objects in the UV and about observing fluorescence, phosphorescence, and tenebrescence. The article explains the different portions UV spectrum including UV-A (long wave), UV-B (mid) and UV-C (short wave). This also goes into a discussion of imaging gear including lenses, films and filters. Then refer to our article Ultraviolet Personal Safety Gear.
Ordering UVP Products
Company Seven stocks some of the more popular UVP lamp and cabinet products, and we accept orders for their other products by numerous means. You can also bring your UVP item to Company Seven for repair, or contact us to obtain user-serviceable items (bulbs, grids, etc.). The ways by which you may order products or parts are outlined at
Company Seven has not become convinced that on-line ordering is always beneficial for the customer, particularly when making a more complicated choice. While on-line ordering certainly is convenient and time effective for the merchant since they do not have to spend time with the customer, the customer is not always making the best choices when buying solely after reading what may be "propaganda" on line. The best ways to make the better choices are to either visit our showroom, or telephone 301-953-2000. This way you can obtain prompt and competent concise assistance which will address your particular needs and concerns.
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Contents Copyright 1994-2010 Company Seven and UVP - All Rights Reserved |
The R-52G is among the few UVP lamps that differs from most other UV lamps since its source is a 254nm quartz grid element. Grid lamps are mercury photochemical lamps with glass tubing bent back and forth to form several parallel bars, typically in either a rectangular or square form. They are designed for applications where intense shortwave 254nm UV energy is needed; the grid element is formed so that it concentrates the energy across the specific area required. The illumination provided is uniform across the gird, without hot spots or diminished areas of output.
The form of the lamp, its size, weight, and its power source will often impose limits about how and where it may be employed. The lamp may be a portable design capable of operating from battery power and able to be hand carried, or the lamps may be a desktop or much larger (up to 49.6 inches) and heavier (up to 20 lb.) unit best suited for installations into cabinets. We characterize the degrees of portability as: pocketable, compact, handheld, desktop, and display. We classify the R-52G as a desktop unit, this is in part due to its heavier ballasted arrangement.
225D Mineralight® and UVGD Mineralight® Lamps
The dimensions of these lamps are:
WARNING Infrared and ultraviolet wavelengths are invisible to the human eye yet these electromagnetic waves bear energy and other information. So any structure that absorbs the light can be damaged by this energy; note how sunlight exposure tans the skin while prolonged exposure fades or breaks down materials. The photons of shorter wavelength carry greater energy therefore, these have the greater potential for causing biological damage. These wavelengths can penetrate the eye or skin cells and can produce heating and energy related biological changes that will modify or destroy cellular DNA; this is among the reasons why some UV light sources are used for germicidal (sterilizing) applications.