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Micro Spectrophotometer

Olympus USPM-RU III

Micro Spectrophotometer

The USPM-RU III is a reflectometer that provides highly accurate spectral reflectivity measurements of small, curved, and thin samples without interference from rear surface-reflected light.

Features
Measuring Even Minute Areas


Measuring Image

The curved surface of the lens can be measured from a minute spot as small as ø60 µm formed on the sample surface. This provides the ability to use a goniometer to examine even the curved side lenses or other optical component.

Reduces Backside Interference


Principle of Eliminating Rear Surface Reflection

Accurate measurement of surface reflectivity can be performed without the costly steps that are typically needed to prevent rear surface reflection. Rear surface-reflected light is reduced by means of special optics that block out all out of focus light reflection similar to a confocal system. Whether your optical component is spherical, aspherical or flat the USPM-RU III does not require sample prep through anti-reflection treatments

Fast Results
Quick, highly repeatable measurements can be delivered in seconds using a flat filed grating, line sensor and high-speed spectrophotometry.
X-Y Chromaticy Diagrams And L*A*B Measurement


XY Chromaticity

Object color can be measured based on spectrophotometric colorimetry determined from the prismatic reflectivity.

Software


Reflectivity graph image


Reflectivity text data image

Specification
Lens Spectral Reflectivity Measurement Device USPM-RU III: Specifications
Measurement wavelength 380nm - 780nm
Measurement method Comparison measurement using reference specimen
Sample N.A.* 0.12 (using 10x objective lens)
0.24 (using 20x objective lens)
* it differs from objective lens N.A.
Sample W.D. 10.1 mm (using 10x objective lens)
3.1 mm (using 20x objective lens)
Sample curvature radius -1R - ?, +1R - ?
Sample measurement range Approximately ø60 µm (using 10x objective lens)
Approximately ø30 µm (using 20x objective lens)
Measurement repeatability (2?) ±0.1 % and less (during 380 nm - 410 nm measurement)
±0.01 % and less (during 410 nm - 700 nm measurement)
Display resolution 1 nm
Measurement time A few secs-several secs (it differs from sampling time)
Light source Halogen lamp 12 V 100W
Z-direction movement range of the stage 85mm
PC interface USB
Weight Unit Approximately 20 kg
Power source for light source: Approximately 3 kg
Control box: Approximately 8 kg
External dimensions Unit: 300 (W) x 550 (D) x 570 (H) mm
Power source for light source: 150 (w) x 250 (D) x 140 (H) mm 
Control box: 220 (W) x 250 (D) x 140 (H) mm
Power Source Power source for light source: 100 V (2.8A)/220 V AC 
Control box: 100 V (0.2A)/220V AC
Environment for use Installed at the horizontal plane with no vibration 
Temperature: 23 ±5°
Humidity: 60% or less
An environment is not subject to air fluctuation

* Absolute accuracy complying with traceability system is not guaranteed.

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