Use the blacklight to detect rodent presence and contamination in warehouses, storerooms, etc.
UV Light can react with the chemicals of a mineral specimen and cause it to glow, called fluorescence.
Volatile hydrocarbons such as gasoline, grease, paints and others fluoresce when exposed to UV, and can be seen as fragments of incendiary devices.
UV or black light reveals changes on the surface of objects as it causes specific fluorescence in materials depending on composition and age. One can detect repair in paintings and rugs using UV light, as differences can be seen between the chemical composition of newer inks, paints, and dyes and that of the originals.
In high-patronage clubs, amusement parks and swimming pools, applying quick drying readmission inks can be read easily by UV light. Handheld portable flashlight blacklight holster - 5 uv led 380nm black light and 3 watt cree led powerful flashlight combination handheld portable 2 in 1 dual mode blacklight for detecting scorpions and cat and dogFind great deals on ebay for mini flashlight keychain flashlight. Description: Both sturdy and handy this 6" black light is small enough for your pocket. View detailsNote Detector Pens - Desktop UV Forgery Detector - Handheld UV Counterfeit Note Detector. QUADRAN 365 S-Series UV-A (365 nm) lamps from Spectronics are specially designed to meet ASTM UV-A intensity and wavelength specifications. For nondestructive testing that examines the structural integrity, safety and reliability in aircraft, powerful Spectroline QUADRAN 365 S-Series multi-LED, broad-beam UV-A (365 nm) inspection lamps from Spectronics meet ASTM UV-A intensity and wavelength specifications for FPT and MPT. Nondestructive testing is utilized in everyday applications where dependable light sources are necessary to examine the structural integrity, safety and reliability in aircraft. Their powerful Spectroline® QUADRAN™ 365 S-Series multi-LED, broad-beam UV-A (365 nm) inspection lamps are specially designed to meet ASTM UV-A intensity and wavelength specifications for FPT and MPT. A certificate of compliance for both wavelength and output measurements is supplied with each lamp.
Manufacturers still rely on traditional methods, but often enhance their systems with an LED light source.
The BlueWave LED DX-1000 can be configured to operate as either a small-area flood or spot-cure system.
Portable Loctite handheld LED devices do not require a controller, unlike standard systems.
The LED Cube 100 chamber from Honle AG is available in wavelengths of 365, 385, 395 and 405 nanometers, It has a maximum irradiation intensity of up to 1 watt per cubic centimeter. The curing section of the OmniCure CV300 conveyor system features a center opening, into which is placed the OmniCure AC7150 or AC7300 LED light array.
Medical device manufacturers frequently use spot curing for needle bonding and syringe-needle assembly. Consider, for example, their excitement nearly 15 years ago when suppliers of LEDs promised that this light source could cure UV adhesives more cost effectively than traditional bulbs (mercury arc, metal-halide, electrodeless). Today, wavelength mismatching rarely happens because manufacturers can now buy UV adhesives formulated specifically for use with LEDs.
To cure adhesive manually, the assembler places the wand tip close to the treated area and holds it for a second or two.
The wand is very flexible, enabling assemblers to quickly and accurately position, remove and reposition the light. However, spot curing large areas is much less cost-effective than using a flood, chamber or conveyor system. Flood curing is recommended when curing large parts, many parts or many types of parts simultaneously.
The light box, which limits the assembler’s exposure to UV rays, is mounted on the stand. Another drawback of flood curing, according to Andy Scott, medical market application engineer for Henkel Corp., is it produces lots of stray lighting. Some suppliers offer focused-beam flood curing systems, which use reflectors to deliver a high-intensity beam of light to achieve maximum cure depth. Small chambers feature a single light and a 6-inch-square tray, whereas large units feature several lights and a tray up to 18 inches square. The LED Cube 100 from Honle AG is a compact UV irradiation chamber designed for bonding or potting components used in the electronics, optical or medical industries.
Because they require a fair amount of energy and floor space, conveyor curing systems are best suited for moderate to high-volume applications. If belt speed is slow enough, one worker can load parts at the front of the conveyor and retrieve parts at the back.

UV-adhesive-curing systems present manufacturers with two ongoing challenges: optimize system performance and maintain it.
Dell’Accio says step one is determining the lowest acceptable intensity (LAI) of light needed to fully cure the adhesive in the available cure time. Light intensity should be checked at the same time every day with a UV meter or radiometer, recommends Scott.
Monitoring intensity is especially necessary for systems with bulbs, which degrade slowly over time.
Several medical device manufacturers closely monitor their curing operations with the AssureCure system from Henkel.
An operator places the LED light at one to four points along the adhesive bond line, and the detection unit optically measures the adhesive’s response during polymerization. Finally, manufacturers need to verify the presence and proper location of an adhesive on each part, and must make sure the adhesive is neither underexposed nor overexposed to UV light. Automated detection units feature an LED or other light source that illuminates the additive. Signs of degradation include adhesive cracking, or a change in color or some physical property, such as increased hardness or decreased elongation. Sponsored Content is a special paid section where industry companies provide high quality, objective, non-commercial content around topics of interest to the ASSEMBLY audience. This text introduces students to a solid background in the basic principles and practices of welding.
Model UVL-56 Hand-held UV black light lamp is a lightweight 6-watt model with 365 nm longwave UV light output. Their evidence is not always visible as they are absorbed by the fire but UV light can expose them. With the great design, it can help you to avoid the ultraviolet light damage your eyes directly. Spectronics Corporation (Westbury, NY) manufactures a wide variety of lamps to meet this need. They are engineered with four ultra-hi-flux UV-A LEDs for fluorescent inspection, plus a white light LED for flaw location. In flood mode, the system delivers up to 1 watt per cubic centimeter over a 1-by-1.5-inch area.
The units can be hand operated or fixtured, and they deliver light irradiance of 2.5 to 3 watts per cubic centimeter at a wavelength from 390 to 420 nanometers. Manufacturers were also told that LEDs last longer, generate less heat and can be used in more flexible configurations than bulbs. This advancement in adhesive chemistry helps manufacturers obtain all of the promised benefits of LEDs.
These systems usually feature a controller with attached tubes (called light guides or wands).
For automated applications, extended-length wands are mounted just above the conveyor to ensure precise placement of the narrow light on the treated area. Spot curing is also great for gasket forming because it allows the assembler to move the wand in any direction around a part or adhesive bead. Another limitation is each part needs to be held securely or fixtured prior to light being applied.
The units run on rechargeable batteries or AC power, can be hand operated or fixtured, and feature an internal cooling fan.
System components include a controller (to set irradiance and duration), a light box or LED array, a stand, and a cable to connect the controller and light. For manual applications, parts are placed below the light box, and the controller is turned on by hand or activated by a foot switch. Medical device manufacturers find the method very effective when curing catheters and cylindrical parts. Although invisible, UV light can be harmful to skin, so manufacturers need to insure worker safety around affected areas.
The beam measures either 1 by 4 or 1 by 6 inches and has an irradiance of up to 350 watts per cubic centimeter.
Cure time ranges from 1 second to several minutes, depending on adhesive and part size or volume. Automatic shutter control protects operators from UV exposure during tray loading and unloading. It is available in wavelengths of 365, 385, 395 and 405 nanometers, and has a maximum irradiation intensity of up to 1 watt per cubic centimeter.

A typical system’s conveyor is about 12 inches wide, several feet long and mounted on a platform. Bulbs stay on continuously during operation, but LEDs are triggered on when a part is in position for curing. Depending on application, the array is either positioned perpendicular to the belt’s direction of travel, or in 15-degree steps until it is parallel to the belt. Travel speed of the Teflon-coated fiberglass belt can be set from 3 to 48 fpm in 1-foot increments. LAI is always application specific and involves curing parts at various intensities and testing them to customer performance requirements. If an adhesive is not detected, the system notifies the operator via a workstation PC or PLC. Dell’Accio says double or even triple exposure (two to three times the dosage required to cure) usually produces no adverse effect on adhesives, including those from Dymax. Before joining ASSEMBLY, Camillo was the editor of PM Engineer, Association for Facilities Engineering Journal and Milling Journal.
After another successful event in 2015, we are looking forward to bringing back this exclusively assembly focused tradeshow for another incredible year! Dry rodent urine glows a blue-white if fresh to a yellow-white if old when exposed to longwave ultraviolet light.
Some minerals and gemstones will fluoresce under shortwave UV ligh and not fluoresce under longwave. Use it for hand stamps, finding pet stains, checking for bacteria, applying UV sensitive cosmetics, antique glass, hunting scorpions, and much more.
After the assembler sets light irradiance (watts per cubic centimeter) and duration (seconds) on the controller, the light is turned on. Light projects downward and, within a few seconds, cures parts positioned in an area of 4, 5 or 8 inches square. The chamber is controlled by a built-in timer and can be operated in a continuous or timed mode. Once LAI is determined, he suggests building in some additional margin by increasing either the cure time or intensity by 50 percent. Introduced in 2012, the system includes adhesives, an LED light source, a detection unit and software.
For those applications, specialty and custom optics are required to precisely apply light to the part. Manual detection involves shining a black light on the part, causing a blue or red area to appear in the part and verify adhesive is present. However, exposure beyond this level will degrade any UV adhesive and some substrates, especially plastics.
Our event mission and commitment to you remains the same - helping suppliers, buyers and users of assembly equipment in manufacturing plants connect, learn, share and explore all things "assembly". Rodent hair glows blue-white and is easily identified on sacks or intermixed with food grains. The QDR-365SA comes with a standard faceplate and the QDR-365SBLA comes with a faceplate containing integral black light filters that further reduce the emission of wavelengths longer than 400 nm.
Low- or high-intensity light passes through the tube, which has a lens at the tip, at a diameter of 5 to 12 millimeters. For automated applications, the controller is integrated into the production line, and parts are conveyed under a mounted light box.
In spot mode, one or several light guides can be installed into an optional adapter to cure tiny areas with up to 15 watts per cubic centimeter.
The company also recently introduced a high-intensity LED flood with a 5-by-5-inch active area.
The white light LED’s high-intensity setting is 300 foot-candles (3,229 lux) and the low setting is 10 foot-candles (108 lux). Along with the QDR-365S-Series UV lamp, these kits contain a rechargeable NiMH battery pack, AC and DC cord sets, a smart AC charger and UV-absorbing glasses.

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