Physics Lab Equipment

LEOI-92 Miniature-1.jpgSchematic diagram


S1: Entrance Slit

S2: Exit Slit 

M1, M4:  Plane Mirrors

G: Grating 

M2, M3: Spherical Mirrors


LEOI-92 Miniature-2.jpg

Photo of instrument


S1: Entrance Slit

S2: Exit Slit 

S3: Tuning Micrometer


LEOI-92 Miniature Monochromator

LEOI-92 Miniature Monochromator

Features

  • Easy operation

  • Compact design

  • Low price






Introduction

LEOI-92 is a manually operated monochromator that utilizes a micrometer for wavelength selection. The entrance and exit slits can be set at 0.15 mm or 0.3 mm in width.

 

The wavelength of the output light can be selected with the micrometer, with one division of the fine scale corresponding to 1 nm and one division of the coarse scale corresponding to 100 nm. Combine both coarse and fine readings to get the value of the output wavelength. Once calibrated, the “zero” mark of the micrometer scale corresponds to the output of the monochromator at the zeroth order (i.e. white light), as it can be observed at the exit slit using a white paper screen. The actual "zero" reading of the micrometer needs to be recalibrated and verified over time.


Specifications

DescriptionSpecifications
Wavelength Range200 - 800 nm
Wavelength Repeatability± 1 nm
Relative ApertureD/F = 1/5
Wavelength Accuracy± 3 nm
Grating1200 lines/mm
Focal Length100 mm
Dimensions120 x 90 x 65 mm
Weight0.8 kg

LEOI-92 Miniature-1.jpgSchematic diagram


S1: Entrance Slit

S2: Exit Slit 

M1, M4:  Plane Mirrors

G: Grating 

M2, M3: Spherical Mirrors


LEOI-92 Miniature-2.jpg

Photo of instrument


S1: Entrance Slit

S2: Exit Slit 

S3: Tuning Micrometer


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