OPTICAL AND LASER DEVICES

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Precision Spectrometers

GMR-1D

Angle and Refractive Index Measurement System from UV Range to Near-IR Range

GMR-1D

Features

Measures refractive index over the UV, visible, and near-IR ranges.
Measured angle is clearly displayed on a dedicated counter.
Minimum deviation method offers highly accurate refractive index measurements.
Excellent ±1" angular measurement accuracy. The 1/2-ratio gear system and photoelectric detection easily determine the angle of minimum deviation.

Applications

Angular measurement of transparent samples, such as new materials and glass, across the UV, visible, and near-IR ranges.

Extensive Options

Variable to user-defined wavelength specifications by adding a laser diode or other light source.

Specifications

Measurement accuracy Angular measurement accuracy: ±1"
Refractive index measurement accuracy: ±0.00001
Display Angle counter digital display
Measurement wavelength range 254 nm to 2500 nm (with IR option)
Slit Max. effective blade length: 15 mm
Min. reading: 0.005 mm
Objective lens Focal distance: 500 mm
Brightness: F/10
Eyepiece lens Autocollimation eyepiece lens
Focal distance: 16 mm
Angle detector High-accuracy rotary encoder
Measurement method Minimum deviation method
PC calculates refractive index from measured sample peak angle and minimum deviation angle.
Gear system Gear ratio: 1/2 Accuracy: 20" min.
Light source Standard: automatic spectrum light-source unit - He, H2, high-pressure Hg, Cd
Optional: automatic spectrum light-source unit - semiconductor laser 1300, 1550
Detector VIS, UV: photomultiplier tube
IR: thermoelectrically cooled Pbs detector
Output format Lock-in amplifier
Size and weight 1210 x 550 x 650 mm, 130 kg

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The system can be customized to your requirements. Consult your Shimadzu representative.

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