Light Sources

The Norland collection of long-wave, ultraviolet light sources have been carefully selected to fit all of your bonding needs when using Norland Ultraviolet Curing Adhesive. Whether you are bonding lenses, tacking electronic components, or curing optical splices, these lights are designed to cure the adhesive quickly and safely. Special features and designs have been added to some of these lights so that they work together with the Norland UVC Optical Splice. To decide which light source is best for you, here are some points to consider. First is the size of your bonding area. It is critical that the entire adhesive area receives uniform light to insure proper curing. Second is the thickness of the adhesive. The thicker the bond line, the higher intensity of UV light is required to cure the adhesive. The third consideration is cure speed. Higher intensity lights will cure the adhesive faster but have more potential for causing strains. Lower intensity lights cure slower but tend to minimize strain in the bonded area.

 

Multi-Pole LED UV Curing System

 

To buy the Multi-Pole LED click here >>

The Multi-Pole LED UV Curing System emits a consistent and repeatable 2.5 W/cm squared @ 365nm at each pole.  Unlike lamp technology there is no lamp or liquid light guide degradation or UV intensity variables throughout the individual poles. The 50,000 hour life of the LED and lack of liquid light guides and replacement lamps brings to the forefront of UV technology a zero level “cost of ownership”! The LED Multi-Pole system is equivalent to a 10 W/cm squared lamp system using a 4 pole liquid light guide.

 

 

Opticure LED CUBE

 

 

 

 

The Opticure LED Cube is an enclosed UV oven that has two UV LED modules which generate a wavelength of 365 nm.  The Cube reduces stress when bonding larger optical parts because the LEDs do not heat the curing area.  The Cube cabinet is made of aluminum.  The interior has special UV reflectors which create a uniform illumination of the curing area.  

 

 

Tray cure area:           UV energy at tray level.

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Top Tray:

6.7”x 9” x 5.5 “ high          12,000 microwatts /cm2

 

Middle tray:               

7.8” x 11” x 9.4” high          8,000 microwatts /cm2

 

Bottom tray:

11” x 11” x 13.82” high        5,000 microwatts /cm2

 

Digital Timer:           Can be set from 1 second to 99 hours.

 

To buy the LED CUBE click here >>

 

 

 

 

Opticure LED 200

 

The Norland Opticure LED 200 is a powerful UV curing system that uses a powerful light emitting diode as its light source.  This ergonomically designed, portable, hand held unit is powered by a rechargeable lithium ion battery.  The Opticure LED has a UV energy output at full power of 2.5 W/cm squared at 365nm.  A microprocessor provides control of timing, audible indicators, temperature sensing, exposure time, and battery management.  An LCD on the back of the light source provides a read out of selected time exposures of 10,20,30,40,50,60 seconds and 3 minutes. The LCD also displays the battery discharge level.  The unit can be manually turned off at any time by pressing the trigger a second time after your initial start.  The Opticure LED UV curing system includes a light source, two rechargeable lithium ion batteries, battery charger, light source stand, UV blocking glasses and carrying case. This light source is CE approved.

To buy the Opticure LED 200 click here >>

 

Polylux 500

 

To buy the PolyLux 500 click here >>>

The Polylux 500 UV curing chamber is a fully self contained light source that uses two 9 watt UV florescent bulbs.  The unit has a cure area of 4" x 5" x 2".  The inside of the chamber is completely mirrored so that all sides of your component will be exposed to UV light at the same time.  The light source has a timer with a setting of five or tens minutes The light source generates  a minimum of 8000 microwatts/sq.cm.  This light source is CE approved.

 

Spectronics SB-100P

To buy the SB100P Spot click here >>>>>>>

To buy the SB100P Flood click here >>>

The SB-100P Lamp from Spectronics is a high intensity black light lamp that is exceptionally rugged. This efficient and dependable light source is ideal for countless applications using Norland UV Adhesive. The SB-100P uses a 100 watt mercury lamp and is available with either a flood (P/N 5505) or a spot (P/N 5500) curing pattern. The flood lamp uses a difussing lens  that creates an average intensity of 6,000 microwatts/sq. cm at a distance of 6 inches over a 7 inch diameter. The spot lamp concentrates the light into a central hot spot of approximately 2 inches. The average intensity is 14,000 microwatts/sq. cm at a distance of 6 inches. Accessories for these units include a heat guard, a wall mounting bracket and a flexible arm fixture.  This light source is CE approved.

 

Spectronics Bench Mount

 

To buy the Bench Mount Lamp click here >>

The Spectronics Bench Mount Lamp style XX-15A (P/N 5600) is ideal for slow, even cures over a large area. Two 15 inch bulbs are housed in a rugged anodized aluminum housing. On the inside of the housing is a specular aluminum reflector to maximize the UV irradiance. This lamp has sturdy metal brackets so that the lamp can easily be mounted overhead.  The XX-15A uses two 15 watt bulbs (P/N 5611) and typically peaks at 2,000 microwatts/sq. cm when mounted at a distance of 4 inches.  The cure area of this unit is approximately 4 x 15 inches.

 

Splice Lamp

To buy the Splice Lamp click here >>

The Splice lamp (P/N 5200) is a table top lamp especially designed for curing the Norland UVC Optical Splice. This 4 Watt, high intensity, fluorescent black light (P/N 5211) is mounted in a sturdy, hinged stand that can be lifted out of the way during assembly and then lowered into place for the cure.  The splice lamp has a cure area of 1.5 x 2 inches. The average light intensity of this unit is 2,500 microwatts/sq. cm at a distance of 1.5 inches.

 

Cure time for Norland UV Adhesive

When bonding two surfaces with Norland UV Adhesive, the minimum full cure is estimated at 20 times the precure time using the same intensity of ultraviolet light. This is a general statement that works well in most applications.

The precure time is defined as the time it takes to initially set or gel the adhesive so that the two surfaces being bonded can no longer be moved. For example, a 15 second precure requires 5 minutes (15 seconds x 20 = 5 minutes) for full cure. Typical precure times will be from 5 seconds to 60 seconds depending on light intensity and adhesive formulation. When different light sources are used in production for the precure and the full cure, the precure time used in this calculation must be measured using the full cure light source.

 Light Source

Cure Area

Intensity

(microwatts/sq. cm)

Recommended Distance

4 Pole Multi-Pole LED
0.5" diameter
10,000,000
0.5 inches
Opticure CUBE  6.7" to 11"
5,000-12,000
    5.5 to 13.82 inches
Opticure LED 200
0.5" diameter
2,500,000
0.5 inches
Polylux 500
 4"x5"x2"
8,000

 N/A

Black Lamp
(spot bulb)

2" diameter

14,500

6 inches

Black Lamp
(flood bulb)

7" diameter

6,000

6 inches

Splice Lamp

1.5" x 2"

2,500

1.5 inches

Bench Lamp

4" x 15"

2,000

4 inches

 

Safety

Ultraviolet light is commonly divided into two regions. Short wave UV in the 190 to 320 nanometer range and long wave UV in the 320 to 400 nanometer range. The short wave UV is considered the most dangerous because it can easily damage the eye and can cause sun burn. No short wave UV light is emitted by any of the Norland UV light sources.

Long wave UV is considered relatively safe. There have been studies that show that high intensity long wave UV and bright visible light up to 500 nanometers can cause damage to the eyes with prolonged exposure. Because Norland UV Adhesives cure so quickly, our UV lights are low to medium intensity and are extremely safe to use with minimal precautions. Do not stare directly at the light and wear UV blocking eye protection. Indirect light from these units is considered relatively harmless.

 

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