Integrating Spheres - OptoPolymer€¦ · This product range offers maximum ﬂ exibility for your application with selection of the right integrating sphere. From three different

Integrating Spheres

Introduction

Universal spheres30 up to 800 mm Ø page 6

Integrating spheres with cylindrical or rectangular external shapeon request page 9

Light measurement spheres250 up to 1.800 mm Ø page 11

Spheres for refl ection and transmission measurement150 mm Ø page 13

Spheres for laser power measurement50 up to 250 mm Ø page 15

Homogenous light sources150 up to 1.000 mm Ø page 16

Precision sphereson request page 18

Integrating spheres as desired by the customeron request page 19

AccessoriesLampholder, portreducer, and more page 20

Our further Delivery Program

What is the integrating sphere

The integrating sphere is a technical optical component.It serves to generate diffuse radiation from directed radiation or to integrate radiation sources that diverge strongly from optical radiation.Our product range offers integrating spheres that cover a useful wavelength range from approx. 250 nm to approx. 20 μm depending on selection of the coating inside the sphere.

Structure This is a hollow sphere, of which the internal wall has a diffuse refl ective coating. For many applications, a barium sulphate (BaSO4) coating is used, whereby the usable wavelength range extends from approx. 320 nm to 1,300 nm.However, the best refl ective properties over a broad wavelength range of approx. 250 nm to 2,500 nm are achieved with our optically diffuse refl ective material OptoPolymer. A number of further advantages of this material are described under the product itself.With infrared radiation > 700 nm, a gold coating is used. The area of the internal sphere wall is specially pre-treated before gilding, in order to obtain a Lambertian characteristic that is as ideal as possible.

The diameters of the sphere ports (openings) are signifi cantly smaller than the internal diameter of the sphe-re. Here, the area of all openings should not exceed 5 % of the total area of the sphere.Furthermore, it should be guaranteed that the light entering the output opening is only such as has been pre-viously refl ected many times on the internal surface.

Our product range of so-called “standard integrating spheres” with barium sulphate (BaSO4) coating compri-ses diameters from 30 mm to 1800 mm. Here, we pursue the philosophy of considering the pre-fi nished half shells of diameters 30, 50, 80, 100, 150, 170, 200, 250, 300, 500 and 800 mm as stock goods. Depending on the application of our customers, the desired sphere diameter is now available. The respective openings are made in consultation with the user. The procedure here is such that users send us their drawing with their requirements or we send users our drawing for approval. We generally distinguish the ports by three types: 1st port; 2nd port with “knife edge”; 3rd port customised.

Refl ection values from our coatingsas a function of wavelength

Introduction

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Overall, three approaches are possible for the integrating spheres appropriate for the customer.

1. Selection from our standard range.2. Customers send us their drawing for production of the entire sphere.3. We develop the end product on the basis of the technical specifi cations supplied by the customer. Our work here can range from required simulations through creation of the drawings required for implemen- tation to production of the end product itself.

Integrating spheres for the broadest range of applications

For the various applications in technical optics, we offer a broad range of different standard sphere structures. These fall into the following categories:

• Universal spheres• Integrating spheres with a cylindrical or rectangular external shape in our diffuse refl ective material OptoPolymer• Light measurement spheres• Spheres for refl ection and transmission measurement• Laser power measurement• Homogenous light sources• Precision spheres• Integrating spheres as desired by the customer• Accessories

Introduction5

Universal spheres

Dimensions: Between 30 mm Ø and 800mm Ø, depending on coating

Internal coating:• Barium sulphate (BaSO4) 320 nm – 1,300 nm• OptoPolymer 250 nm – 2,500 nm• Gold 700 nm – 20 μm

External coating:• Powder coating, “black matt fi ne structure” or a RAL colour as desired by the customer

Number of ports• 3: port 1 at 0°; port 2 at 90°; port 3 at the north pole• 4: as “3:”, with an additional port at 180°• All ports are supplied with a port plug for sealing the sphere

Baffl e • Between 0° and 90° port

Optional accessories• External halogen lamp at 5 – 100 W• LED light source or IR light source after consultation• Port reducer• Light trap• Screens• Filter holders• Optical fi lters• Diffusing screens• Fibre adapters• Refl ective standards

Universal sphere 6

Port (Standard Port)

Port customised (for example)Port with "knife-edge"

Universal sphere

In the case of universal spheres, we offer a selection of different coatings and sphere diameters. The number of ports on universal spheres can be selected at 3 or 4 openings.This product range offers maximum fl exibility for your application with selection of the right integrating sphere.From three different coating types, choose the coating that is suited to your application.

Barium sulphate (BaSO4) For wavelength range from approx. 320 nm to 1,300 nmOptoPolymer For wavelength range from approx. 250 nm to 2,500 nmOP-Gold For wavelength range from approx. 700 nm to 20 μm

This chapter presents so-called universal spheres for general applications. All spheres have standardised connections of different diameters, onto which additional components can be fi tted with no problem. As well as seals, screens, reducers, light traps, fi lter holders, internal and external light sources, diffusing screens, fi bre adapters, sample holders, detectors, detector holders and satellite spheres, we offer plenty of custo-mised components that can be connected to the so-called “modular port”.

Each of our universal spheres has a baffl e (chicane, light screen) in the equatorial plane, at 45°, to prevent direct light exchange between 0° and 90°.

All openings on our spheres are supplied with so-called port plugs, so the spheres can be completely sealed when not in use. This considerably increases the service life of the respective coating.

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Universal sphere 8

Order designations

Designation Coating Internal Ø 0° port 90° port North pole. 180° portOPSB-080-3P BaSO4 80 mm 1" 1" 1"

OPSB-100-3P BaSO4 100 mm 1" 1" 1"

OPSB-150-3P BaSO4 150 mm 1" 1" 1"

OPSB-200-3P BaSO4 200 mm 1.5" 1" 1"

OPSB-250-3P BaSO4 250 mm 1.5" 1" 1"

OPSB-300-3P BaSO4 300 mm 1.5" 1" 1"

OPSB-500-3P BaSO4 500 mm 2" 1" 1"

OPSB-800-3P BaSO4 800 mm 2" 1" 1"

OPSB-080-4P BaSO4 80 mm 1" 1" 1" 1"

OPSB-100-4P BaSO4 100 mm 1" 1" 1" 1"

OPSB-150-4P BaSO4 150 mm 1" 1" 1" 1"

OPSB-200-4P BaSO4 200 mm 1.5" 1" 1" 1"

OPSB-250-4P BaSO4 250 mm 1.5" 1" 1" 1"

OPSB-300-4P BaSO4 300 mm 1.5" 1" 1" 1"

OPSB-500-4P BaSO4 500 mm 2" 1" 1" 1"

OPSB-800-4P BaSO4 800 mm 2" 1" 1" 1"

OPS-030-3P OptoPolymer 30 mm 0.25" 0.25" 0.25"

OPS-060-3P OptoPolymer 60 mm 0.5" 0.5" 0.5"

OPS-080-3P OptoPolymer 80 mm 1" 1" 1"



OPS-030-4P OptoPolymer 30 mm 0.25" 0.25" 0.25" 0.25"

OPS-060-4P OptoPolymer 60 mm 0.5" 0.5" 0.5" 0.5"

OPS-080-4P OptoPolymer 80 mm 1" 1" 1" 1"



OPSG-030-3P OPGold 30 mm 0.25" 0.25" 0.25"

OPSG-030-3P OPGold 50 mm 0.5" 0.5" 0.5"

OPSG-030-3P OPGold 80 mm 1" 1" 1"

OPSG-030-3P OPGold 100 mm 1" 1" 1"

OPSG-030-3P OPGold 150 mm 1" 1" 1"

OPSG-030-3P OPGold 200 mm 1.5" 1" 1"

OPSG-030-3P OPGold 300 mm 1.5" 1" 1"

OPSG-030-4P OPGold 30 mm 0.25" 0.25" 0.25" 0.25"

OPSG-030-4P OPGold 50 mm 0.5" 0.5" 0.5" 0.5"

OPSG-030-4P OPGold 80 mm 1" 1" 1" 1"

OPSG-030-4P OPGold 100 mm 1" 1" 1" 1"

OPSG-030-4P OPGold 150 mm 1" 1" 1" 1"

OPSG-030-4P OPGold 200 mm 1.5" 1" 1" 1"

OPSG-030-4P OPGold 300 mm 1.5" 1" 1" 1"

Any other sphere confi guration is available on request.

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The accessories available as standard are co-ordinated and optimised for the respective design of our inte-grating spheres. The fact that the dimensions of the sphere connections (ports etc.) and therefore also the accessories are selected in inches is due to our international orientation in this market. We are happy to implement dimensions in mm after consultation.

Optional accessoriesWe offer a very broad range of optional accessories for your application, taking into account the respective wavelength range used and the geometric dimensions of the integrating sphere. We are happy to help with the selection of any components that might be required.

Integrating spheres with a cylindrical or rectangular external shape in our diffuse refl ective material OptoPolymer

With some applications, which have been increasing particu-larly in recent times, the usable wavelength range of barium sulphate is no longer adequate. The user needs either wave-lengths of < 320 nm or > 1,300 nm, or an extended tempe-rature range. In this case, only one integrating sphere in our diffuse refl ective material OptoPolymer is possible.As well as the extended wavelength range of approx. 250 nm to 2,500 nm, the extremely broad temperature range from -80°C to +280°C is an outstanding property. Note that these specifi cations apply only for the diffuse refl ective ma-terial itself and not necessarily for the complete integrating sphere.

Our diffuse refl ective material OptoPolymer is a solid materi-al that is produced by machine for the respective product. In many cases, it is easier and therefore also cheaper to design the external geometry of the integrating sphere in cylindrical or rectangular form.

This is the preferred practice specifi cally with customised applications in which an integrating sphere is used.From this product segment, we supply individual items and even larger series for the broadest range of users.

These are therefore customised productions. The size of the internal spheres here ranges from a diameter of a few mm to 1,000 mm*.

*A 1,000 mm diameter is the largest integrating sphere that we have supplied to a customer in this material to date.

If you are interested in this product segment, please apply to us with your specifi cations.

On the next page we show you some examples of products.

Universal sphere

Spheres with cylindrical or rectangular external shape

Spheres with cylindrical or rectangular external shape 10

Homogenous light source with 1.000 mm diame-

Spheres for refl ection and transmission measurement with 150 mm diameter

Measuring sphere with 36 mm diameter Custom made sphere with 150 mm diameter

Light measurement spheres

The light measurement spheres are ideally suited to measuring the total luminous fl ux of lamps. The stan-dard diameters of our spheres are designed from approx. 250 mm to 1,800 mm. We therefore offer sphere diameters for measuring from small lamps/LEDs to fl uorescent tubes of length 120 cm. The internal sphere wall is coated with our OPRC barium sulphate coating. This covers a usable wavelength range from approx. 320 nm to 1,300 nm.

Order designations

Designation Coating Internal Ø Structure Lamp length max. OPSB-250-LMK BaSO4 250 mm Tabletop structure 13 cmOPSB-300-LMK BaSO4 300 mm Tabletop structure 15 cmOPSB-500-LMK BaSO4 500 mm Tabletop structure 25 cmOPSB-800-LMK BaSO4 800 mm Tabletop structure 50 cm

OPSB-1000-LMK BaSO4 1.000 mm Stand structure 60 cmOPSB-1600-LMK BaSO4 1.600 mm Stand structure,

mobile90 cm

OPSB-1800-LMK BaSO4 1.800 mm Stand structure,mobile

120 cm

The OPSB-250-LMK / OPSB-300-LMK measu-rement spheres have a diameter of 250 mm or 300 mm and serve to measure miniature and sub-miniature lamps as well as LEDs. The sphe-res are designed for light sources that shine into the spheres, i.e. for measurements without the need to open the spheres. However, both vari-ants have also been supplied as a fold-out tab-letop model.

The OPSB-500-LMK / OPSB-800-LMK measu-rement spheres have a diameter of 500 mm or 800 mm. Both variants are designed with a fold-out frame for tabletop use. The fold-out confi gu-ration allows opening of the spheres in order to place measuring objects inside the spheres.

The OPSB-1000-LMK measurement sphere has a diameter of 1,000 mm. Here too, the structure is implemented with a fold-out frame and the fi xed half shell is designed as the stand variant with robust, lockable rollers. The fold-out confi -guration allows opening of the sphere in order to place measuring objects inside the sphere.

The OPSB-1600-LMK / OPSB-1800-LMK mea-surement spheres have a diameter of 1,600 mm or 1,800mm. Both models are supplied as a stand structure mounted on a rail construction. The structure here comprises one fi xed half shell and one half shell that can be moved on rails. To load the measurement spheres, the mobile half shell is simply moved away from the fi xed half shell, on rails.

Light measurem

ent spheres11

Structure options inside the measurement sphereInside, we offer you the broadest range of options for placement of the medium to be measured.For example, we supply an assembly table with electrical contacts in order to be able to connect the res-pective lamp to be measured to a power supply.The respective lamp fi xing / power supply that you require can be implemented through the sphere from the top or the bottom.When producing the respective lamp holder required, we therefore respond completely and entirely to the needs of the user. This also applies for additional ports required or other accessories. The standard spheres specifi ed should merely provide you with an overview of the sphere diameters available.

Light measurem

ent spheres 12

Integrating sphere with 1,800 mm diameter

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Spheres for refl ection and transmission measurement

One important application of the integrating sphere is to determine refl ection, transmission and ab-sorption of materials. The integrating function is an essential factor here for optical radiation. This property allows measurement of optical radiation, regardless of whether it is directed or diffuse.

As “standard spheres”, we have specifi ed internal diameter 150 mm (6”). This diameter offers a com-promise with respect to number and size of opening ports, for the level of the measuring signal.

With measuring spheres of smaller diameter, the proportion of port area increases relative to sphere surface.With measuring spheres of larger diameters, the limited level of the measuring signal can have a ne-gative impact on your application.

However, here too, we have produced integrating spheres with diameters of 200, 250 and 500 mm for refl ection and transmission measurement.

Order designations

Designation Coating Internal Ø Wavelength Sample and reference port Ø

OPSB-150-RT BaSO4 150 mm 320 – 1.300nm 5 x 1” ØOPSB-150-RT-CM BaSO4 150 mm 320 – 1.300nm 3 x 1” and 2 x 1.25” Ø

OPS-150-RT OptoPolymer 150 mm 250 – 2.500nm 5 x 1” ØOPS-150-RT-CM OptoPolymer 150 mm 250 – 2.500nm 3 x 1” and 2 x 1.25” ØOPSG-150-RT OPGold 150 mm 0.7 – 20 μm 5 x 1” Ø

OPSG-150-RT-CM OPGold 150 mm 0.7 – 20 μm 3 x 1” and 2 x 1.25” Ø

Spheres for refl ection and transmission m

easurement

14

Spheres for refl ection and transmission m

easurement

Three standard designs are offered, which differ with respect to internal coating of the spheres.

1. OPSB-150-RT Barium sulphate coating, usable wavelength range 320 – 1,300 nm2. OPS-150-RT OptoPolymer coating, usable wavelength range 250 – 2,500 nm3. OPSG-150-RT OPGold coating, usable wavelength range 0.7 – 20 μm

Furthermore, these three coating variants are subdivided into two groups. The fi rst group of measurement spheres has fi ve 1-inch ports.

OpeningsThe RT sphere features fi ve fl at openings. Four openings serve to attach the sample and the reference. The-se four openings are arranged geometrically such that an 8° double beam shape is possible for both refl ection and transmission measurements. These are located in the equatorial plane and each has a diameter of 20 mm. In the north pole position, there is a detector opening with a diameter of 14 mm.For better cosine behaviour, the sample openings are angled in a funnel shape (cutting edge). At each ope-ning, there are four M3 threaded holes to make the attachment of accessories such as sample holders or light traps as easy as possible. As only one opening is required for hemispherical transmission measurements, the delivery includes two sealing plugs. We also supply a sample holder.

AssemblyThe sphere housing can be placed directly on a table; no further assembly is required. There are fi ve M6 threaded holes on the bottom of the sphere to facilitate assembly on an optical table or on the double pivoting baseplate that is available as an option, on request also with pneumatic control.

AccessoriesA light trap is required for diffuse refl ection measurements. The proportion refl ected directly is absorbed in the light trap.

Spheres for laser power m

easurement15

Spheres for laser power measurement

This area focuses on collection of the total radiated power from very divergent or collimated radiation sources.

So-called baffl es are used with all measurement spheres. These prevent the coupled-in radiation from being able to go directly from the input to the output port.Due to special requirements for the input and detector ports, this baffl e is omitted in the case of our spheres for laser performance measurement.Regarding this, please see the illustration below on the structure of our laser performance measurement spheres.

Order designations

Designation Coating Internal Ø Wavelength Port ØOPSB-50-LL BaSO4 50 mm 320 – 1.300nm mmOPSB-80-LL BaSO4 80 mm 320 – 1.300nm mm

OPSB-100-LL BaSO4 100 mm 320 – 1.300nm mmOPSB-150-LL BaSO4 150 mm 320 – 1.300nm mmOPSB-200-LL BaSO4 200 mm 320 – 1.300nm mmOPSB-250-LL BaSO4 250 mm 320 – 1.300nm mm

OPS-50-LL OptoPolymer 50 mm 250 – 2.500nm mmOPS-80-LL OptoPolymer 80 mm 250 – 2.500nm mm

OPS-100-LL OptoPolymer 100 mm 250 – 2.500nm mmOPS-150-LL OptoPolymer 150 mm 250 – 2.500nm mmOPS-200-LL OptoPolymer 200 mm 250 – 2.500nm mmOPSG-50-LL OPGold 50 mm 0.7 – 20 μm mmOPSG-80-LL OPGold 80 mm 0.7 – 20 μm mm

OPSG-100-LL OPGold 100 mm 0.7 – 20 μm mmOPSG-150-LL OPGold 150 mm 0.7 – 20 μm mmOPSG-200-LL OPGold 200 mm 0.7 – 20 μm mm

Integrating sphere with Baffle

Very divergent light source(for example. Laser Diode)

Detektor

LL-Integrating sphere without baffle

Very divergent light source(for example. Laser Diode)

Detektor

16

Homogenous light sources

A homogenous light source provides a very homogenous and very stable ray density. This is the essential condition for calibration and for testing CCD sensors, detectors, CCD cameras etc.We have defi ned a number of sphere diameters as standard, which have emerged as the result of several ap-plications. The sphere diameter here is based on the required size of the homogenous opening. This opening should be no larger than 1/3 of the sphere diameter. The homogeneity achieved at the output is 98% here.These systems specifi ed as standard represent examples. According to your application, we can create and construct the optimum system for you on the basis of your requirement profi le.Depending on the size of the sphere, a monitor detector can be integrated, which continuously monitors the lamp power inside the sphere. So-called port plugs are supplied in order to allow sealing of the monitor de-tector ports if they are not required.

The homogenous light sources with a sphere diameter up to 300 mm, i.e. up to a homogenous opening of diameter 100 mm, can also be supplied with a satellite sphere. In this case, the light radiates into the satellite sphere. At the connecting point of both spheres, the quantity of light radiating into the larger sphere can be varied by means of an integrated iris diaphragm. Furthermore, there is an integrated diffuser to improve the homogenous properties.All sphere systems are coated with our OPRC barium sulphate coating..

Integrating sphere for "Ganzfeld" applications

Hom

ogenous light source

Order designations

OPSB-150-HLS OPSB-200-HLS OPSB-300-HLS OPSB-500-HLS OPSB-800-HLS OPSB-1000-HLS

Sphere Ø 150 mm 200 mm 300 mm 500 mm 800 mm 1000 mm

Coating BaSO4 BaSO4 BaSO4 BaSO4 BaSO4 BaSO4

Wavelength 320 – 1.300nm 320 – 1.300nm 320 – 1.300nm 320 – 1.300nm 320 – 1.300nm 320 – 1.300nm

Output port Ø 50 mm max. 60 mm max. 100 mm max. 150 mm max. 250 mm max. 300 mm max.

Satellite sphere Possible Possible Possible no no no

Number of lamps 1 1 3 4 Customized Customized

Lamp type Halogen Halogen Halogen Halogen Customized Customized

Lamp power Customized Customized Customized Customized Customized Customized

Monitor diode** Customized Customized Customized Customized Customized Customized

Structural form Table frame Table frame Table frame Table frame Customized Customized

Height-adjustable

Yes Yes Yes Yes Customized Customized

Output portlocation

Vertikal / Horizontal




Customized Customized

External colour of the sphere***

Black matt fi ne structure






Port cover Yes Yes Yes Yes Yes Yes

* Each lamp port is provided with a baffl e.** Port plug supplied in case this detector port is not required.** Powder coating. Any other RAL colour is possible at no extra cost if desired by the customer.

For an extended wavelength range of 250 nm to 2,500 nm, we also offer our homogenous light sources in our diffuse refl ective material OptoPolymer. Please contact us about this.

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Hom

ogenous light source

Precision spheres

Nearly all Integrating spheres offered previously have had an external shell made of pressed aluminium half shells. When selecting the suppliers of the half shells we use, we place great emphasis on the quality of the moulds employed here. This governs the uniformity of the spheres used subsequently, both internally and externally.However, no Integrating sphere with pressed half shells can guarantee really precise alignment of the mea-surement openings to each other.To help here, our precision spheres are produced completely on a 5-axle machine. Admittedly, this means more costly production of this product range, whereby the complete body of the integrating sphere is created from one solid aluminium block. However, for extremely precise alignment of the measurement openings to each other, this process is highly recommended and possibly essential.

The internal sphere diameters we offer range from a few mm to approx. 500 mm.

Precision spheres 18

Integrating sphere with 200 mm inner diametercoated with our OPGold

for the wavelength range from 700 nm - 20 μm

Integrating Sphere with 280 mm inner diametermade from our diffuse refl ecting material OptoPo-lymer for the wavelength range from 250 - 2,500 nm

Integrating spheres as desired by the customer

All Integrating spheres not specifi ed can basically be found under this product item. Please ask us if you are unable to fi nd the sphere required for your application in these documents.Our work here can range from required simulations through creation of the drawings required for implemen-tation to production of the end product itself.

Integrating spheres as desired by the customer19

Lampholder intern

Please contact us for further information.

Lampholder extern

Including: Halogen lamp, Iris diaphragm, two openings for fi lter holderPlease contact us for further information.

Portreducer

Please contact us for further information. A

ccessories 20

21

Accessories

Lampholder

Please contact us for further information.

Any more examples of products.

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For your notes

Our further Delivery Program

• Optical Diffusive Refl ecting Material• Refl ectance Standards• Films in our Optical Diffusive Refl ecting Material. From 0,2 - 5,0mm thickness• Integrating Spheres in our Diffusive Refl ecting Material „OptoPolymer“• Barium Sulphate (BaSO4)• Coating Service with Barium Sulphate (BaSO4)• Integrating Spheres with Barium Sulphate (BaSO4) coating• Integrating Spheres with Gold coating• Accelerated UV Material testing

• Optical Detectors in UV-, VIS-, NIR-range• UV Measuring equipments and Radiometer• Sun Simulators and UV-Lightsources• SPF testing equipment (In-Vitro and In-Vivo)

• Monochromators• Detectors• Spectrometers• Lightsources• Filters and Filter Wheels• Optical Fibers and Fiber holders• Accessories

• Reach-in Environment Chambers• Walk-in Environment Rooms• Environmental Rooms and Chambers Measurement Systems

Our further D

elivery Program23

Documents

Integrating Spheres - OptoPolymer€¦ · This product range offers maximum ﬂ exibility for your application with selection of the right integrating sphere. From three different