Inverted monocular design
3D folded optical path
RMS standard optical tube length
Miniature objectives corrected for 0.17mm cover slip
Rotating objective carrier holds up to three objectives
Em1 400 = x10 N/A 0.25 and x40 N/A 0.65
Em1 600 = x10 N/A 0.25, x40 N/A 0.65, x60 N/A 0.80
Em1 1000 = x10 N/A 0.25, x40 N/A 0.65, x100 oil N/A 1.25
Standard RMS eyepiece x10 wide field
Built-in white LED illumination
Variable illumination
External USB power socket
Built in battery power saver
Battery life approximately 1,000 hours at minimum continuous power
Battery life approx. 300 hours at maximum continuous power
2 x standard photographic tripod mounting bushes
All models supplied with micrometer XY slide indexer as standard with interchangable slide clips
Cavity (fluids) slide supplied as standard
Digital camera attachable
Mobile phone camera attachable
Fine focusing attachment
Die-cast, CNC machined optical sub-chassis
Hardened bearing surfaces
Die-cast aluminium stage
Injection moulded rubber coated PC/ABS case
Minimum weight - (Em1 400 with slide clips, USB power, no batteries) 480 grams
Size (main body) – Length 133mm, width 110mm, height 49mm
Size (max overall) – Length 154mm, width 122mm, height 66mm

Optical system

The optical system is based on the standard RMS 160mm ‘tube’ length and can accommodate an interchangeable range of standard RMS eyepieces. The compact hand-held form has an inverted design with the optical path folded three dimensionally using one Z axis mirror and two XY axis mirrors. The objective lenses, have been specifically miniaturised for the microscope in order to reduce size and weight.

The aluminium optical chassis assembly is decoupled from the external moulded casing, providing a high level of protection from physical shock.

The optical system is illuminated by a white-light balanced miniature light emitting diode. The tube mounting collimates the light source providing a narrow beam. Illumination/contrast levels can be adjusted by moving the light arm angle. The PCB design provides variable brightness control with power options from internal batteries or the external mini USB connection.


Precision ground Schott glass
Laser aligned
Plated brass mounts
CNC machined hard anodised aluminium lens turret
Corrected for 0.17mm cover slip
x10 N/A 0.25
x40 N/A 0.65
x60 N/A 0.80
x100 oil N/A 1.25


precision ground 2.0 mm glass
front silvered and coated
surface accuracy, mirror No1 = 3-4 fringes
surface accuracy, mirror No2 = 5 fringes
surface accuracy, mirror No3 = 5 fringes


Precision high pressure die-cast aluminium alloy
CNC machined mirror mounts: Linear +/- 0.1mm, angular +/-0.25 degrees
CNC machined bores and shafts: Diametric +/- 0.015mm
Fully hardened rotational and sliding bearing surfaces
General surfaces aluminium oxide pressure blasted and black anodised


© Archimedes Research Limited 2022

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