Spectroscopy Solutions - Broadband Xe Light Source - PowerArc

Arc lamp vs vertical lamp

75W Xe Ozone free light source for UV-Visible-NIR applications

Still using an old style, vertical, arc lamp housing with an ozone venting chimney?

HORIBA Scientific has a much better alternative.

If you need a broadband light source in the UV/Vis/NIR portion of the spectrum, an arc lamp has no peer. The intensity of an arc lamp is extremely high and, depending on the lamp, reasonably continuous throughout the region from 240 to 1200 nanometers. Usable intensities are even available in the deep UV to 180 nm and in the near infrared to 2500 nm.

While arc lamps themselves are very similar from manufacturer to manufacturer, the arc lamp housings that contain these lamps are very different. As such the arc lamp housing can have a dramatic affect on how an arc lamp illuminator performs. The arc lamp housing needs to hold the lamp, provide electrical contact, collect and deliver light emitted from the arc, and maintain a good operating temperature. We believe that our long experience in light source design is what allows us to give you a unique light source that truly is a better design.

Segment: Scientific
Division: Custom Spectroscopy Solutions
Base product
Manufacturing Company: HORIBA Scientific

Key Benefits of the PowerArc™ arc lamp housing design:

  • Delivers Five to Six Times More Light
  • Ozone Free Lamp Housing with No Venting Chimney
  • More Compact
  • Environmentally Friendly Producing no Ozone and Consuming Less Energy
  • Less Expensive

A 75 Watt Xenon Arc Lamp Illuminator Provides the Same Power Output as a 450 Watt Xenon Arc Lamp in a Vertical Lamp Housing!

Users of old style vertical arc lamp housings are throwing away as much as 90% of the lamps output, due to poor collection efficiency. These old style vertical lamp housings have a collection lens in front of the arc lamp and sometimes, but not always, a back reflector behind them. The problem with this old design is that only the light that actually strikes these optical elements is delivered outside of the lamp housing. All other photons emitted by the lamp are wasted, simply heating the inside of the lamp housing. Conversely the unique PowerArc™ lamp housing has an enveloping ellipsoidal reflector that collects virtually all of the light emitted by the lamp arc, delivering those photons to a secondary focal point outside of the lamp housing, and it does so without any lenses.

For the same bulb, the PowerArc™ delivers 5 to 6 times more light, to the secondary focus! That means that an OBB PowerArc™ lamp housing with a 75 watt xenon lamp provides the equivalent optical power of a 450 watt xenon lamp in an old style vertical lamp housing. And it does so with greater power density due to a smaller focal spot, and at a small fraction of the cost of a big old 450 watt illuminator.

Hardware

The compact high intensity light source includes: the lamp housing, lamp, adapter, power supply and igniter; just select the desired focal length optics, lamp and window.

Please note that the PowerArc™ series of lamp housings are designed for lamps from 75 watts to 150 watts. Please also refer to our KiloArc™ light source for ultra high intensity requirements with 1,000 watt arc lamps.

Arc Lamp Housing

At the heart of the PowerArc™ lamp housing is a proprietary on-axis ellipsoidal reflector. Our reflectors collect up to 70% of the radiant energy from the arc lamp, versus only 12% for typical condenser systems in vertical lamp housings. The ellipse literally wraps around the arc lamp, collecting 5 to 6 times more output power than a conventional system.

The arc source is located at one focal point of the ellipse, and the radiation is reflected by the ellipse to the secondary focus which is actually outside of the lamp housing. Since the light is brought to a focus by reflection rather than refraction (through a lens), there are less losses from absorption or lens-surface back-reflection. This design is so efficient that a PowerArc™ lamp housing can deliver  up to 11 times more optical power into a given smaller area than a conventional lamp housing. This is critical when illuminating light guides, monochromator slits, pinholes or other small areas.

What this means is simply that you get the same output with a 75 W system as with a conventional 450 W system. You obviously will save money and space.

While conventional lamp housings resemble chimneys emitting ozone and requiring cumbersome venting, the PowerArc™ has a sealed lamp housing that requires no ozone venting.

Specifications

Lamp power capacity

75 to 150 watts

Height

100 mm (3.9 inches)

Width

100 mm (3.9 inches)

Length

210 mm (8.3 inches)

Weight

1.9 kg (4.2 pounds)

Window Diameter (D)

65 mm

Note: There are M5 or 8/32 tapped holes on the bottom of the lamp housing to allow mounting of the housing to mounting posts

Ozone-Free Arc Lamp Housing

We call the PowerArc compact arc lamp housing design an ozone free lamp housing regardless of the lamp selected, even in the case of UV enhanced lamps. It is ozone free primarily because it is a sealed lamp housing that is air tight and not air cooled, unlike most arc lamp housings which use air cooling.

The PowerArc lamp housing with UV enhanced lamps has been tested following OSHA safety standards. While some ozone was detected outside the lamp housing, the ozone levels in the test room were well below the safe guidelines. Of course some UV light is delivered outside the lamp housing and into the air in the test room, and you can even detect this by smell, but not enough ozone is created to pose a health risk or require a chimney for venting.

Air cooled lamp housings have a real problem because they blow oxygen at the UV source, and, like blowing oxygen on a fire, this creates problems. One way to get around this problem with an air cooled lamp housing is to select a lamp that has an envelope that does not emit wavelengths below 250 nm. As such even an air cooled lamp housing will not create an ozone problem since there is no UV output outside the lamp itself. The problem with this solution is that many applications require deeper UV wavelengths.

If you require deep UV output for your application then you necessarily require a lamp that emits deep UV wavelengths. For these applications we recommend a UV enhanced lamp and a suprasil front window for the PowerArc lamp housing to get the most UV output you can. Even in this configuration, the sealed PowerArc lamp housing is still considered to be an ozone free lamp housing.

Since oxygen is the principle absorber of light in the 150 to 200 nm range, some applications, such as CD spectroscopy, require nitrogen purging to access the lowest UV wavelengths emitted from UV enhanced xenon lamps (down to about 180 nm). For output in the 180 to 200 nm range you will need to nitrogen purge your optical environment, and also to use no front face window on the lamp housing. The housing is now no longer air tight, but the nitrogen purging negates the concern for ozone creation.

The unique PowerArc design allows you to choose whatever lamp, reflector and front face window is best for your particular optical needs. And the Ozone free design means that your choice is always safe and requires no venting or chimney to deal with.

Arc Lamp

You have a choice of lamps depending on the spectral output that you require. Of course you may order different types of lamps for the housing, they are interchangeable.

There are two types of arc lamps available—xenon and mercury. The xenon gas used in the lamp provides continuous spectra from 180 nm to 2,500 nm of course at varying intensity (refer to spectral output graph). The mercury provides a line spectra (refer to spectral graph). The spectral curves for xenon and mercury are normalized (relative intensities) therefore it is not obvious that the mercury lamps, intensity—where it emits, exceeds that of the xenon lamp. Because of the smaller arc size, the mercury lamp can also provide greater intensity in a smaller area (greater brightness) than the xenon lamp.

We also have an optional tungsten-halogen filament lamp for NIR applications.

Arc lamps come with a quartz or suprasil envelope depending on the application. Quartz lamps do not transmit the deep UV below 240 nm. Suprasil lamps do transmit  the deepest UV output from the arc down to about 180 nm. For either type of lamp envelope our unique lamp housing design does not create ozone and therefore requires no ozone venting.

Lamp Wattage

Lamp Type

Nominal Arc Gap

75 watt

Compact Arc Xenon

0.8 mm

100 watt

Tungsten Halogen Filament

4 x 2 mm

100 watt

Mercury

0.25 mm

75 watt

Suprasil Compact
Arc Xenon

1.3 mm

150 watt

Compact Arc Xenon
Ozone free

2.1 mm

150 watt

Compact Arc Xenon

2.1 mm

The 75 watt xenon lamp and 100 watt tungsten-halogen lamps require no cooling whatsoever. The larger wattages of lamps require water cooling.

You can either get your water directly from the cold-water tap (can be a problem if the water is hard or when water is not available) or from an inexpensive circulating water bath option that we provide.

We have selected water-cooling over air: because it allows us to make a more compact housing; seal in the ozone and eliminates the need for venting.

Arc Lamp Housing Elliposidal Reflector

Our ellipsoidal reflectors are proprietary in design and the coating used. They are NOT electro-formed reflectors, which can distort with heat, and can degrade within months. Our proprietary design ensures that distortion of the critical ellipsoid can not occur as the lamp reaches its operating temperature. This ensures thermal stability of focus. The coating ensures reasonably long operating life—typically 3-5 years.

With an PowerArc™ lamp housing you have a choice of three different ellipsoidal reflectors depending on your requirements. The proprietary reflectors HORIBA uses allows for the great 70% collection efficiency. In addition to collection of light the reflectors are used as focusing elements. Hence the selection of a reflector determines the focal length. The different focal lengths correspond to the different “focal cones” of light coming from your lamp housing. This “focal cone” is variously referred to as f/#, Numerical Aperture, and/or acceptance, convergence, or divergence angle.

The f/# is important when considering matching a light source to some other component, for example: fiber optics, liquid light guides or monochromators. However the f/# does not affect the light collection as it does in a simple lens design. The shape and size of the ellipsoidal reflector determines how much light is collected from the lamp arc, and the amount of delivered light is the same for all of HORIBA's reflectors. Selection of your HORIBA reflector f/# is primarily based on matching the focal cone of the converging beam with any secondary optical elements you will be using. However the f/# also determines the focal distance and the focal spot size with lower f/#’s having shorter focal lengths and smaller spot sizes.

The spot size at the focus is directly related to the original arc gap size of the lamp and the focal length of the reflector. The larger the arc, or the longer the focal length, the larger the spot size at the focus. Hence if you want to have the maximum power in the smallest spot select the fastest focal length (f/1) and the smallest arc size lamp (100 W Mercury). This is another unique benefit of the HORIBA's system; we give you the most power in the smallest spot. No one using an arc lamp can match us in this regardless of their systems size or cost.

Reflector Selection Guide (dimensions are in millimeters)

 

 

f/4.5 reflector

f/2.5 reflector

f/1 reflector

Focal length (F)

379 mm

240.5 mm

112 mm

Focal point from housing (X)

284.35 mm

151.46 mm

22.25 mm

Beam angle (a)

14.5 degrees

28 degrees

45 degrees

Numerical Aperture N.A.

0.12

0.24

0.45

Arc Lamp Housing Window

The PowerArc™ is a sealed arc lamp housing. You have a choice of the optical front windows, depending on the spectral output that you require. Please refer to the transmission spectra of the three types of windows available. If you plan to use different types of lamps in your lamp housing, you may want to order different windows or select Suprasil since it will transmit all spectra.

Window

Wavelength

Graph 

Pyrex

Above 350 nm

Quartz

Above 250 nm

Suprasil

Above 180 nm

Arc Lamp Power Supply

The PowerArc™ lamp housing comes with one of two choices for the power supply and igniter.

Dedicated 75 or 100 Watt Arc Lamp Power Supply:

Dedicated 75 or 100 Watt Power Supply If you are only ever going to use the 75 watt xenon lamp or 100 watt mercury lamp with your OBB PowerArc™ lamp housing, then we offer two dedicated compact power supplies and igniter units that are integrated onto the lamp housing. They are specially designed switch mode power supplies offering outstanding stability with a simple push button, electronically safe, ignition. In fact, although they are not DC regulated power supplies, OBB carefully designed them to offer virtually identical stability specifications to our linear power supply. When used with the PowerArc™ lamp housing this illuminator offers a very small form at a very affordable price.

New Feature:

* New lamp hour usage meter

75 Watt Switch Mode Power Supply Specifications

Input (user selectable)

90–274 V AC, 50–60 Hz

Power Rating

50 to 100 watts

Operating Voltage

10 to 25 volts

Operating Current

3 to 7 amps

Pre-Ignition Voltage

65–75 V DC

Ripple at Max Current

< 3% peak to peak

Stability After Warm-up

0.5%

Line Voltage Regulation

< 0.5% current variation for 5 volts line change

Dimensions (H x W x D)

4.82 x 4.14 x 8.02 inches
12.2 x 10.5 x 20.4 cm

Weight

4 pounds, 2 kg

Universal 75 to 150 Watt Arc Lamp Power Supply:

If you need to use a lamp other than 75 or 100 watts, then we offer a universal highly-regulated, constant current, linear, DC power supply. This universal power supply provides very stable power for arc lamps. It can also be used with a 100 watt tungsten-halogen filament lamp for enhanced IR output. Designed for use with various lamp housings, it may be used with lamp housings from other manufacturers. When used with an arc lamp in OBB’s PowerArc™ lamp housing, this stand alone power supply is connected to a compact igniter that is integrated onto the lamp housing for electronically safe ignition.

The DC regulated power supply pictured below has a current adjust for different operating wattages and can display operating voltage, wattage or current.


Universal Supply Connections for Arc Lamp


Universal Supply Connections for Tungsten Lamp

75 to 150 Watt Universal Power Supply Specifications

Input (user selectable)

105–120 V/60 Hz or 210–240 V/50 Hz

Power Rating

0 to 150 watts

Operating Voltage

10 to 24 volts

Operating Current

0 to 8 amps

Pre-Ignition Voltage

> 85 volts

Ripple at Max Current

< 10 millivolts

Stability After Warm-up

0.2%

Line Voltage Regulation

0.1% current variation for 5 volts line change

Load Regulation

0.1% current variation for 50% change in load impedance

Dimensions (H x W x D)

4.5 x 10.75 x 12.5 inches, 11.5 x 27.3 x 31.8 cm

Weight

12 pounds, 5.45 kg

Ignition Safe Arc Lamp Igniter

Ignition noise can disrupt, or even destroy, sensitive equipment in the vicinity of an arc lamp during start-up. This can be quite a concern in a crowded lab environment. OBB Engineers introduced an igniter that is integrated onto the lamp housing. This design provides an effective EMI shield which contains the EMI pulse, providing a safer and more convenient environment in which to do your research

Applications

Applications for compact arc lamp housings cover a broad range of scientific, OEM and research applications. Arc lamp systems are the light sources of choice for a variety of spectroscopy systems.

Light Source for,

  • Fluorometers,
  • UV /Vis Spectrometers
  • CD Spectrometers
  • Stopped-Flow Spectrometers
  • Microscopes
  • Tunable Illuminators

Arc lamp systems are also used for a broad a range of applications almost as diverse as the wavelength range across which they emit.

  • Solar Simulators
  • Photochemistry
  • Photo-Activation
  • Photobiology
  • Spectroscopy
  • Optical Teaching Labs
  • Pump Probe
  • Dermatology
  • Catheter Illumination

 

PowerArc™ Arc Lamp Housing Optical Specifications

Reflector Selection Guide (dimensions are in millimeters)

 

f/4.5 reflector

f/2.5 reflector

f/1 reflector

Focal length (F)

379 mm

240.5 mm

112 mm

Focal point from housing (X)

284.35 mm

151.46 mm

22.25 mm

Beam angle (a)

12.7 degrees

23 degrees

53 degrees

Numerical Aperture N.A.

0.11

0.20

0.45

PowerArc™ Arc Lamp Illuminator Optical Specifications

Lamp Wattage

Reflector

Broadband Optical Power 
at Focal Point (W)

Focal Point 
(FWHM, mm)

75 W Xe

f/1

7.5

1.5

75 W Xe

f/2.5

7.5

3.2

75 W Xe

f/4.5

7.5

5.4

100 W TH Filament

f/1

3

7.5

100 W TH Filament

f/2.5

3

18

100 W TH Filament

f/4.5

3

30

100 W Hg

f/1

10

0.9

100 W Hg

f/2.5

10

1.2

100 W Hg

f/4.5

10

3.4

150 W Xe

f/2.5

15

5.8

150 W Xe

f/4.5

15

10.5

200 W Hg Xe

f/2.5

20

10.4 mm

200 W Hg Xe

f/4.5

20

18 mm

Please note that spot sizes above are full width half maximum (FWHM) which by definition means that half of the optical power reported above falls outside the FWHM diameter and half of it is inside.

Arc Lamp Brightness Chart and Solar Conversions (Includes KiloArc™)

 

 

Brightness Inside the FWHM Diameter

Light Source, Lamp & Reflector Combinations

Optical Power (W)

Spot Size FWHM (mm)

Power Density inside FWHM diameter (W/mm^2)

Power Density  inside FWHM diameter (W/cm^2)

Suns inside FWHM diameter (suns)

PowerArc™
100 W Hg
f/1 reflector

10

0.9

7.86

786.35

7863.49

PowerArc™
100 W Hg
f/2.5 reflector

10

1.2

4.42

442.32

4423.21

PowerArc™
75 W Xe
f/1 reflector

7.5

1.5

2.12

212.31

2123.14

PowerArc™
150 W Xe
f/1 reflector

15

2.6

1.41

141.33

1413.33

KiloArc™
1000 W Xe 
f/4.5 reflector

100

8

1.00

99.52

995.22

PowerArc™ 
100 W Hg 
f/4.5 reflector

10

3.4

0.55

55.10

550.99

PowerArc™ 
75 W Xe
f/2.5 reflector

7.5

3.2

0.47

46.65

466.51

PowerArc™
150 W Xe
f/2.5 reflector

15

5.8

0.28

28.40

284.01

PowerArc™
75 W Xe
f/4.5 reflector

7.5

5.4

0.16

16.38

163.82

PowerArc™
150 W Xe
f/4.5 reflector

15

10.5

0.09

8.67

86.66

75 Watt Switch Mode Arc Lamp Power Supply Specifications

 

Input (user selectable)

90–274 V AC, 50–60 Hz

Power Rating

50 to 100 watts

Operating Voltage

10 to 25 volts

Operating Current

3 to 7 amps

Pr-Ignition Voltage

65–75 V DC

Ripple at Max Current

< 3% peak to peak

Stability After Warm-up

0.5%

Line Voltage Regulation

< 0.5% current variation for 5 volts line change

75 to 150 Watt Universal DC Regulated Arc Lamp Power Supply Specifications

 

Input (user selectable)

105–120 V/60 Hz or 210–240 V/50 Hz

Power Rating

0 to 150 watts

Operating Voltage

10 to 24 volts

Operating Current

0 to 8 amps

Pr-Ignition Voltage

> 85 volts

Ripple at Max Current

< 10 millivolts

Stability After Warm-up

0.2%

Line Voltage Regulation

0.1% current variation for 5 volts line change

Load Regulation

0.1% current variation for 50% change in load impedance

Dimensions

4.5 x 10.75 x 12.5 inches, 11.5 x 27.3 x 31.8 cm

Weight

12 pounds, 5.45 kg

To determine how much light the OBB PowerArc™ delivers in a specific wavelength region for a given lamp refer to the following spectral output curves for the xenon and mercury arc lamps. These curves provide an estimation of the percentage of the total optical output power for a given wavelength range of the emitted light from the lamp.

Xenon Arc Lamp Spectrum

Xenon Arc Lamp Intensity Chart

Wavelength

% output

Wavelength

% output

Wavelength

%output

Wavelength

% output

250-300

2.489

750-800

4.682

1250-1300

0.896

1750-1800

0.345

300-350

3.540

800-850

8.914

1300-1350

0.705

1800-1850

0.306

350-400

4.577

850-900

6.284

1350-1400

0.931

1850-1900

0.306

400-450

5.245

900-950

6.788

1400-1450

0.919

1900-1950

0.306

450-500

5.626

950-1000

5.848

1450-1500

1.118

1950-2000

0.268

500-550

5.214

1000-1050

2.871

1500-1550

0.701

2000-2050

0.345

550-600

5.729

1050-1100

1.953

1550-1600

0.513

2050-2100

0.230

600-650

6.472

1100-1150

1.402

1600-1650

0.515

2100-2150

0.230

650-700

5.649

1150-1200

1.593

1650-1700

0.552

2150-2200

0.230

700-750

4.862

1200-1250

0.846

1700-1750

0.428

TOTAL

100.000

Mercury/Xenon Arc Lamp Spectrum

Mercury/Xenon Arc Lamp Intensity Chart

Wavelength

% output

Wavelength

% output

Wavelength

%output

Wavelength

% output

260-270

2.205

380-390

0.538

500-510

0.199

800-900

3.186

270-280

2.678

390-400

0.488

510-520

0.199

900-1000

2.947

280-290

2.877

400-410

2.862

520-530

0.199

1000-1100

3.942

290-300

4.231

410-420

0.304

530-540

0.249

1100-1200

3.544

300-310

3.883

420-430

0.319

540-550

3.325

1200-1300

2.190

310-320

5.730

430-440

5.207

550-560

1.563

1300-1400

4.580

320-330

0.538

440-450

0.498

560-570

0.249

1400-1500

2.091

330-340

1.572

450-460

0.199

570-580

3.463

1500-1600

2.449

340-350

0.448

460-470

0.199

580-590

4.908

1600-1700

2.051

350-360

0.886

470-480

0.199

590-600

0.521

1700-1800

2.190

360-370

8.403

480-490

0.229

600-700

3.467

1800-1900

1.990

370-380

1.473

490-500

0.483

700-800

2.041

1900-2000

1.990

Although the spectral output charts above do not show data below 250 nm, the PowerArc can deliver light down to 180 nm, the lowest available wavelength emission of the xenon plasma. Some arc lamps use quartz envelope bulbs that do not transmit UV wavelengths. These lamps are sometimes called ozone free bulbs because they do not emit in the deep UV and hence create ozone when interacting with oxygen in the air. We offer both ozone free and UV enhanced bulb choices, as well as different window materials for the front output of the lamp housing, so that our customers can choose the best components for their requirements.

For requirements below 250 nm please select from one of the two following xenon lamps when requesting your quote.

Part Number

Description

142

75 W suprasil (extended life) xenon arc lamp, output above 180 nm

145

150 W xenon arc lamp, output above 210 nm

Determining the PowerArc™ Arc Lamp Housings Specific Energy Output for a Given Wavelength

Example

How much light does the PowerArc™ arc lamp housing provide with a 75 watt xenon arc lamp in a 5 nm optical bandwidth at 400 nm?

The answer is approximately 37.5 mW and here is how we get that answer as well as a cautionary note about this number.

Calculation: The total power of the 75 watt xenon lamp is 7.5 watts broadband (7,500 mW). Referring to the Band Pass Intensity Chart, and graph, for the xenon lamp indicates that at 400 nm there is approximately 5% of the total lamp output in a 50 nm wide band. Therefore in a 5nm bandwidth at 400 nm there will be approximately 0.5% (1/10th of 50 nm) of the total lamp output. This corresponds to 37.5 mW.

Caution about available energy: Remember that not all of this light will be available to you for your application.

Filter for wavelength selection: If you use a 5 nm bandpass filter for wavelength selection, then there will also be losses through the filter as well as coupling losses for any optics you incorporate. Therefore you might end up with19 mW of energy to work with.

Monochromator for wavelength selection: If you are going to use a monochromator to filter and select the 5 nm output at 400 nm, then there are a number of factors to consider before determining exactly how much light will be available through the monochromator. Specifically the slit size required for a 5 nm bandpass, the grating efficiency curve for the grating used, the f/# matching of the monochromator, and the throughput loss of the monochromator coupling. OBB happens to provide a tunable PowerArc™ illuminator that consists of the PowerArc™ lamp housing coupled to a 200 mm focal length monochromator. When using the 75 watt xenon lamp with the f/4.5 ellipsoidal reflector, a considerable amount of light in the original focused spot doesn't even get through the narrow 1.25 mm slits required to obtain a 5nm bandpass with a standard 1,200 l/mm grating. Firstly we have to remember that the 5.4 mm spot is actually the FWHM of the total light focused. This means that approximately half of the total power is outside a 5.4 mm diameter. So, only about 10% of the total focused light gets into the monochromators narrow 1.25 mm slit in the first place. Additionally, depending on the grating used, its wavelength angle, its efficiency curve as well as the coupling loses of the monochromator you will have a total throughput for the monochromator of roughly 30%. This results in about 1 mw of energy delivered through the monochromator at 400 nm in a 5 nm bandpass. Still, 1 mW in a 5 nm bandpass through a monochromator is significantly more than any other commercially available alternative. Refer to the Tunable PowerArc™ web page for the corresponding output curve. Also remember that other monochromator options are available with differing focal lengths and grating resolutions and grating blaze angles that will have an impact of the total throughput.

 

Accessories

The PowerArc™ illuminator is one of many interconnectable optical components. Hence the name of our company, Optical Building Blocks Corporation. These Optical Building Blocks can be ordered together to form a complete subassembly or they can be subsequently added to an existing OBB component. In fact there are enough OBB components to choose from to build your own complete optical system for various spectroscopy requirements.

Compatible Optical Building Blocks


Monochromators

OBB has an excellent 200 mm focal length monochromator. If you would like to couple the PowerArc™ illuminator to our monochromator, then we have a light shield adapter tube to physically connect them and create a tunable illuminator. To learn more about our monochromators, click here.  Incidentally, if you are looking for such a tunable illuminator we have a separate page describing them here.


Optical Choppers

If you would like to convert the continuous illumination of the PowerArc™ into a pulsed light source then we have an optical chopper that can do the job. It can be used on a stand alone basis or it can be physically mounted into a light shield adapter tube that would become an extension of the PowerArc™ lamp housing. To learn more click here.


Sample Compartment

If you would like to couple your PowerArc™ lamp housing into a sample compartment, then we have an ideal solution. The OBB QuadraCentric sample compartment is an excellent unit that has various sample handling capabilities. There is also a light shield adapter tube that directly couples the PowerArc™ lamp housing to the sample compartment with matching optics to focus light into the sample. You can then have up to three other input or output optical channels to or from the central sample holder. So you could create a right angle fluorometer or scatter system or a straight through absorbance spectrometer with the appropriate detection components. For each optical channel in the sample compartment there is also a filter holder for wavelength selection. To learn more click here.


Light Guides

Liquid light guides have become the flexible light guide of choice for non laser based light handling. OBB Corporation has a selection of liquid light guides to choose from. If you would like to use a liquid light guide with your PowerArc™ lamp housing then we have an adapter tube that will connect the lamp housing to the light guide. It can even accommodate an IR filter to prevent damage to the light guide from being photodamaged.

Other Accessories

Collimating Lenses

If you need a collimated optical beam, then a collimating lens can be employed for the diverging beam after the light focal point. Be sure to match the collimating lens for your beam diameter requirements and for the f/# of the OBB light source you are considering. OBB offers a number of collimating lenses to choose from. Also if you need a uniform collimated beam of light be sure to consider an optical diffuser.

There are many other accessories and options to choose from for the PowerArc™ lamp housing. Send us a quote request to view them all.

PowerArc Specification Sheet
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