Modular, Small Area Uniform Light Sources

Labsphere USS-800 Modular Small Area Uniform Light Source

The affordable way to configure your own uniform light source system

Further Information	Technical Drawings
» USS-800S Datasheet	» USS-800S Drawing
» USS-800C Datasheet	» USS-800C Drawing

The Labshere USS-800 series is a family of affordable, small area uniform light sources. All models are based upon an 8 inch sphere with 2 inch exit port. The USS-800S sources use an internal tungsten halogen lamp and give a fixed, non-adjustable luminance, whereas the USS-800C sources use an external lamp coupled through a variable attenuator which allows the luminance to be adjusted. Please note that luminance adjustment by means of varying the current applied to the lamp is not possible - doing so would degrade the lamp and cause the uniform light source to quickly lose its calibration. Luminance uniformity is specified at 98% or better over the full area of the exit port (at maximum luminance).

Choose from internal lamps of 5, 35 or 75 Watts, or external lamps of 35, 75 or 100 Watts to give fixed or adjustable luminance of up to 70,500 cd/m². The external lamps couple through a micrometer adjusted variable attenuator.

The halogen lamps used in the USS-800 series burn at a correlated colour temperature of 3,000 Kelvin. Each system is supplied with a current regulated lamp power supply and a calibrated photometer that records the luminance from the sphere and displays this reading in cd/m2. All spheres are supplied with a post mount and base for bench use. Optional calibrations include measurements of the source illuminance, spectral radiance (300-2400nm) and integrated radiance. Luminance uniformity mappings of the sphere are also available, both spatial and angular.

USS-800S Specifications & System Configurations

Main Specifications	USS-800S-005	USS-800S-035	USS-800S-075
Sphere Type	US-080-SF	US-060-SF	US-080-SF
Integrating Sphere Dia. (inches)	8	8	8
Exit Port Dia. (inches)	2	2	2
Luminance (cd/m²)	3,000	31,000	70,500
Uniformity (%)	98	98	98
Colour Temperature (Kelvin)	3,000	3,000	3,000
Peak Radiance (mW/cm².sr.µm @ 900nm)	11	77	166
System Configuration
Internal Lamps
IHLS-100-005 (5W)	x 1	-	-
IHLS-100-035 (35W)	-	x 1	-
IHLS-100-075 (75W)	-	-	x 1
Power Supplies
LPS-100-0062 (5W)	x 1	-	-
LPS-100-0307 (35W)	-	x 1	-
LPS-100-0625 (75W)	-	-	x 1
Monitor Detector	SDA-050-P-RTA-CE (photopic response)
Monitor Photometer / System Controller	SC-6000
Standard Calibrations	Luminance (cd/m²)
Optional Calibrations	Spectral radiance (mW/cm².sr.µm, 300-2400nm)
	Illuminance (lux)
	Integrated Radiance (W/sr)
	Luminance mapping

USS-800C Specifications & System Configurations

Main Specifications	USS-800C-035R	USS-800C-075R	USS-800C-100R
Sphere Type	US-080-SF	US-060-SF	US-080-SF
Integrating Sphere Dia. (inches)	8	8	8
Exit Port Dia. (inches)	2	2	2
Luminance (cd/m²)	0 - 9,800	0 - 13,500	0 - 24,000
Uniformity (%)	98	98	98
Colour Temperature (Kelvin)	3,000	3,000	3,000
Peak Radiance (mW/cm².sr.µm @ 900nm)	24	52	69
System Configuration
External Lamps
EHLS-100-035R (35W)	x 1	-	-
EHLS-100-075R (75W)	-	x 1	-
EHLS-100-100R (100W)	-	-	x 1
Power Supplies
LPS-100-0307 (35W)	x 1	-	-
LPS-100-0625 (75W)	-	x 1	-
LPS-100-0833 (100W)	-	-	x 1
Variable Attenuator	VA-100-MIC (micrometer adjusted variable attenuator)
Monitor Detector	SDA-050-P-RTA-CE (photopic response)
Monitor Photometer / System Controller	SC-6000
Standard Calibrations	Luminance (cd/m²)
Optional Calibrations	Spectral radiance (mW/cm².sr.µm, 300-2400nm)
	Illuminance (lux)
	Integrated Radiance (W/sr)
	Luminance mapping