the flexible integrating sphere series uku / uls

uku series integrating spheres enable the fast and easy setup for measurements of the radiant power and the luminous flux of light sources as well as the reflection and transmission of materials.
All types of the uku series are available as "uls" version (uniform light source). These spheres come with one or several light sources, controlled or with fixed light source.
The idea is simple, exact and flexible. The uku series concept is based on planar surfaces with concentric positioning circles allowing to adjust any type of detector, light source and material sample easily and without port adapters in a highly flexible way to the integrating sphere ports. The total area of the port openings in the standard version is significantly less than 1% of the total sphere area and thus complies with DIN 5036. Up to a diameter of 240 mm, the models of the uku series are designed as tabletop systems. Larger diameters are held in a stable frame.

Integrating sphere series uku

All types are made of high-quality compact aluminum. A well-stocked selection of accessories is available for the most flexible use possible for the various applications. Fast set-ups with trustworthy measurement results, these are the strengths of the uku series.

Robust integrating sphere made of aluminum
Solid welded construction in cantilever aluminum frame
Interior coating of high-quality barium sulphate
External coating RAL9005 (deep black), other coating possible on request
Hinged hemisphere
Ergonomically designed working height (table-top device)
Sample holder in the center of the sphere (optional)
Sample holder at the side port (optional)

Specifications

Sphere material	Aluminum
Internal coating	BaSO₄, further coatings on request
Reflection factor of the internal coating	> 93 %
Port fraction (standard configuration)	f < 1% of the total surface

Applications

Measurement of the total luminous flux (4pi und 2pi)

Measurement of the integral spectral power distribution and the color values

Meaurement of the specular and diffuse reflection and transmission

Measurement of the luminous flux efficiency rate in lm/W (energy efficiency grade)

Measurement of the light output ratio in %

product information integrating spheres uku 1 MB

technical data sheet integrating spheres uku 2 MB

opsira integrating spheres are available in various sizes

Model

Bildmaterial

Diameter

Port fraction f

Sphere factor M

Model: uku120

Diameter: 120 mm

Port fraction f: < 0.70 %

Sphere factor M: approx. 11.5

Model: uku240

Diameter: 240 mm

Port fraction f: < 0.70 %

Sphere factor M: approx. 11.5

Model: uku315

Diameter: 315 mm

Port fraction f: < 2.95 %

Sphere factor M: approx. 7.79

Model: uku500

Diameter: 500 mm

Port fraction f: < 1.81 %

Sphere factor M: approx. 8.54

Model: uku800

Diameter: 800 mm

Port fraction f: < 0.71 %

Sphere factor M: approx. 9.44

Model: uku1000

Diameter: 1000 mm

Port fraction f: < 0.59 %

Sphere factor M: approx. 9.45

Model: uku1600

Diameter: 1600 mm

Port fraction f: < 0.69 %

Sphere factor M: approx. 9.45

Integrating sphere uku120

Integrating sphere diameter	120 mm
Internal coating	BaS0₄
Reflection factor of the internal coating	approx. 93 %
Diameter Port 1 @ 90/45	20 mm
Diameter Port 2 @ 90/-45	20 mm
Diameter Port 3 @ 90/135	20 mm
Port fraction f	< 0.7 %
Sphere factor M	approx. 11.5
Dimensions (width x depth x height)	126 x 130 x 130 mm³
Weight	approx. 2 kg

Integrating sphere uku240

Integrating sphere diameter	240 mm
Internal coating	BaS0₄
Reflection factor of the internal coating	approx. 93 %
Diameter Port 1 @ 90/45	20 mm
Diameter Port 2 @ 90/-45	20 mm
Diameter Port 3 @ 90/135	20 mm
Port fraction f	< 0.7 %
Sphere factor M	approx. 11.5
Dimensions (width x depth x height)	265 x 260 x 260 mm³
Weight	approx. 14 kg

Integrating sphere uku315

Integrating sphere diameter	315 mm
Sphere wall thickness	approx. 3 mm
Internal coating	BaS0₄
Reflection factor of the internal coating	approx. 93 %
Diameter Port 1 @ 90/180	60 mm
Diameter Port 2 @ 30/0	60 mm
Diameter Port 3 @ 90/45	20 mm
Diameter Port 4 @ 90/-45	20 mm
Diameter Port 5	60 mm
Port fraction f	< 2.95 %
Sphere factor M	approx. 7.79
Dimensions (width x depth x height)	320 x 435 x 460 mm³
Weight	approx. 20 kg

Integrating sphere uku500

Integrating sphere diameter	500 mm
Sphere wall thickness	approx. 3 mm
Internal coating	BaS0₄
Reflection factor of the internal coating	approx. 93 %
Diameter Port 1 @ 90/180	100 mm
Diameter Port 2 @ 20/0	60 mm
Diameter Port 3 @ 90/45	20 mm
Diameter Port 4 @ 90/-45	20 mm
Diameter Port 5 @ 160/0	60 mm
Port fraction f	< 1.81 %
Sphere factor M	approx. 8.54
Dimensions (width x depth x height)	525 x 700 x 800 mm³
Weight	approx. 28 kg

Integrating sphere uku800

Integrating sphere diameter	800 mm
Sphere wall thickness	approx. 3 mm
Internal coating	BaS0₄
Reflection factor of the internal coating	approx. 93 %
Diameter Port 1 @ 90/0	100 mm
Diameter Port 2 @ 20/0	60 mm
Diameter Port 3 @ 45/45	20 mm
Diameter Port 4 @ 45/-45	20 mm
Diameter Port 5 @ 160/0	60 mm
Port fraction f	< 0.71 %
Sphere factor M	approx. 9.44
Dimensions (width x depth x height)	850 x 1000 x 1200 mm³
Weight	approx. 46 kg

Integrating sphere uku1000

Integrating sphere diameter	1000 mm
Sphere wall thickness	approx. 3 mm
Internal coating	BaS0₄
Reflection factor of the internal coating	approx. 93 %
Diameter Port 1 @ 90/0	125 mm
Diameter Port 2 @ 12/0	60 mm
Diameter Port 3 @ 45/45	20 mm
Diameter Port 4 @ 45/-45	20 mm
Diameter Port 5 @ 168/0	60 mm
Port fraction f	< 0.59 %
Sphere factor M	approx. 9.45
Dimensions (width x depth x height)	1400 x 1200 x 1600 mm³
Weight	approx. 90 kg

Integrating sphere uku1600

Integrating sphere diameter	1600 mm
Sphere wall thickness	approx. 4 mm
Internal coating	BaS0₄
Reflection factor of the internal coating	approx. 93 %
Diameter Port 1 @ 90/0	250 mm
Diameter Port 2 @ 110/0	60 mm
Diameter Port 3 @ 45/45	20 mm
Diameter Port 4 @ 45/-45	20 mm
Diameter Port 5 @ 170/0	60 mm
Port fraction f	< 0.69 %
Sphere factor M	approx. 9.45
Dimensions (width x depth x height)	2500 x 1800 x 2300 mm³
Weight	approx. 320 kg

Accessory for all types of the integrating sphere series uku

FSMA port lock cover plate with fibre optic connection
Port lock cover for dust and light protection
Auxiliary light source
Calibrated auxiliary light source
frc'3 photometer
spr'3 spectroradiometer
spec’3 spectrometer
Fixing claw for frc'3
Fixing claw for spr'3
Fixing claw for frc-f-l
Sample platform for the positioning of samples
Temperature and humidity sensor
Optical bench outside the integrating sphere, 2pi configuration
Power meter, measurement of the luminous flux efficiency in lm/W
High-quality programmable laboratory power supply

Integrating sphere series uls – uniform light source

product information integrating sphere uku / uls 1 MB

technical datasheet integrating sphere uku / uls 2 MB

Model

Bildmaterial

Diameter

Port fraction f

Sphere factor M

Model: uku315

Diameter: 315 mm

Port fraction f: < 3.50 %

Sphere factor M: approx. 8.4

Model: uku500

Diameter: 500 mm

Port fraction f: < 1.40 %

Sphere factor M: approx. 10.3

Model: uku800

Diameter: 800 mm

Port fraction f: < 0.95 %

Sphere factor M: approx. 11.2

Model: uku1000

Diameter: 1000 mm

Port fraction f: < 0.45 %

Sphere factor M: approx. 9.7

Integrating sphere uls315

Integrating sphere diameter	315 mm
Sphere wall thickness	approx. 3 mm
Internal coating	BaS0₄
Reflection factor of the internal coating	approx. 93 %
Diameter Port 1 @ 90/0	100 mm
Diameter Port 2 @ 45/45	60 mm
Port fraction f	< 3,5 %
Sphere factor M	approx. 8.4
Dimensions (width x depth x height)	320 x 435 x 460 mm³
Weight	approx. 20 kg
Power of the light source(s)	150 W
Correlated color temperature T_n	approx. 2900 - 3000 K
Luminance within the sphere	approx. 20 kcd/m²
Luminance at the diffuse silica glass shutter (optional)	approx. 2 kcd/m²

Integrating sphere uls500

Integrating sphere diameter	500 mm
Sphere thickness	approx. 3 mm
Internal coating	BaS0₄
Reflaction factor of the internal coating	approx. 93 %
Diameter Port 1 @ 90/0	100 mm
Diameter Port 2 @ 45/45	60 mm
Port fraction f	< 1.4 %
Sphere factor M	approx. 10.3
Dimensions (width x depth x height)	525 x 700 x 800 mm³
Weight	ca. 28 kg
Power of the light source(s)	150 W
Correlated color temperature T_n	approx. 2900 - 3000 K
Luminance within the sphere	approx. 9 kcd/m²
Luminance at the diffuse silica glass shutter (optional)	approx. 0.9 kcd/m²

Integrating sphere uls800

Integrating sphere diameter	800 mm
Sphere thickness	approx. 3 mm
Internal coating	BaS0₄
Reflection factor of the internal coating	approx. 93 %
Diameter Port 1 @ 90/0	100 mm
Diameter Port 2 @ 45/45	60 mm
Diameter Port 3 @ 45/-45	60 mm
Port fraction f	< 0.95 %
Sphere factor M	approx. 11.2
Dimensions (width x depth x height)	850 x 1000 x 1200 mm³
Weight	approx. 56 kg
Power of the light source(s)	2 x 150 W
Correlated color temperature T_n	approx. 2900 - 3000 K
Luminance within the sphere	approx. 8 kcd/m²
Luminance at the diffuse silica glass shutter (optional)	approx. 0.8 kcd/m²

Integrating sphere uls1000

Integrating sphere diameter	1000 mm
Sphere thickness	approx. 3 mm
Internal coating	BaS0₄
Reflection factor of the internal coating	approx. 93 %
Diameter Port 1 @ 90/0	100 mm
Diameter Port 2 @ 45/45	60 mm
Diameter Port 3 @ 45/-45	60 mm
Port fraction f	< 0.45 %
Sphere factor M	approx. 9.7
Dimensions (width x depth x height)	850 x 1000 x 1200 mm³
Weight	approx. 46 kg
Power of the light source(s)	2 x 150 W
Correlated color temperature T_n	approx. 2900 - 3000 K
Luminance within the sphere	approx. 5 kcd/m²
Luminance at the diffuse silica glass shutter (optional)	approx. 0.5 kcd/m²
Power of the light source(s)	4 x 150 W
Luminance within the sphere	approx. 10 kcd/m²
Luminance at the diffuse silica glass shutter (optional)	approx. 1 kcd/m²

Accessory for all types of the integrating sphere series uku and uls

Port adapter

OTS-Z-UKU-A0	Port lock cover plate for the integrating sphere for prevention against light and dust
OTS-Z-UKU-A1	Port lock cover plate for mounting an SMA connector light fiber (1/4-36 UNS) to the integrating sphere
OTS-Z-UKU-A2	Port lock cover plate for mounting a fiber collimator (3/8-24 UNF) to the integrating sphere
OTS-Z-UKU-A4	Fixing claw for mounting the frc'3 photometer to the integrating sphere or stray light baffle
OTS-Z-UKU-A5	Fixing claw for mounting of detectors to the integrating sphere
OTS-Z-UKU-A6	Fixing claw for mounting the spr’3 spectroradiometer to the integrating sphere with improved cable management
OTS-Z-UKU-A7	Port cover / window for ports with diameter of 100 mm with lambertian scattering silica glass (diffusil®) and threads for brackets to fix samples

Detectors

OTS-FRC-F	Photometer
OTS-SMS-SP3-x	Spectrometer
OTS-SMS-SPR3	Spectroradiometer
OTS-LMS-x	Luminance measurement system

Light sources

OTS-UKU-HLQ01	Auxiliary light source, needs 60 mm port
OTS-Z-KLQ-HAL100	Luminous flux calibration light source, Halogen, 100W
OTS-KLQ-0010	LED calibration light source

Power supply

OTS-Z-LSV-PS512	Fixed voltage supply for the auxiliary light source
OTS-LSV-DC-030	High-quality programmable laboratory power supply for defined and controlled start of calibration light sources (uls)

Mechanics

OTS-UKU-xxx-PT1	Sample platform for the positioning of sources or luminaires in the center of the sphere (needs 168/0 port)
OTS-UKU-xxx-PT2	Sample platform for the positioning of samples at the side port (needs 90/0 or 90/180 port)