Omnicon 3800 Tumor Colony Analyzer (TCA)

Imaging Products Inc.

Inverted BiologicalMicroscope

Brooke Clarke 2014

Omnicon 3800
          Tumor Colony Analyzer (TCA)
Background
Description
    Arm
    X-Y-Z Stage
    Objective & Camera
Related
Links

Background

I found this while searching for a Nikon Plan 2x/0.05 microscope objective for my Labophot microscope.  This device cost less than the going price for just the objective even including shipping it.  It turns out to be an automated inverted microscope designed to look at a tray full of petri dishes.  There are three Airpax stepper motors, one for Front-Back, one for Left-Right and one for Up-Down (behind front panel) movement.  In The objective looks up and is coupled to an machine vision TV camera and that whole assembly moves up/down to focus.  There's an arm with a lamp house and condenser system that accepts two sliders.

Here's a photo I found on line that shows the 3600 model and what may be a PC computer, monitor and keyboard, or it may be a custom electronics package?
Omnicon 3600 Tumor Colony Analyzer (TCA)

Description

The major components are mounted on a 27" x 16"  wood base.  There is an arm mounted at the rear of the baseboard that holds the power supply, lamp controls, lamp house and condenser assembly.  I suspect this came from a commercial microscope.  If you know which manufacturer/model let me know.  The mechanical stage is mounted to the front of the baseboard and consists of the X-Y-Z stage and the optical assembly.

Arm

Fig 10 Power Input Panel removed to install two
mounting nuts & bolts.  DC power supply PCB.
Omnicon
                  3800 Tumor Colony Analyzer (TCA)
Fig 11 On/Off switch, Brightenss Control, Lamp house,
Upper slider slot (35x10mm), Lower Slider Slot (38x10mm).  Condenser shown in rear position.  Knob on condenser, just above the slider slot is the iris adjustment.
Omnicon
                  3800 Tumor Colony Analyzer (TCA)
Fig 12  The top slot is smaller than the bottom slot.
Objective not installed in this photo.
Omnicon
                  3800 Tumor Colony Analyzer (TCA)
Fig 13 Lower Slider "T31 Ph"
Omnicon
                  3800 Tumor Colony Analyzer (TCA)
Left marked: A LDN 20x, A 10x
Right marked: PA LDN 20x, PA LDN40x
fits in 38 x 10mm lower slider slot.

PS found a neutral density filter and retaining ring
that fits the center hole.


X-Y-Z Stage

Based on Airpax stepper motors with timing belts for X and Y and a screw jack for Z.

Fig 1
Omnicon
                  3800 Tumor Colony Analyzer (TCA)
Fig 2
Omnicon
                  3800 Tumor Colony Analyzer (TCA)
Fig 3
Omnicon
                  3800 Tumor Colony Analyzer (TCA)




Objective & Camera

The objective image is turned 90 degrees by a mirror (maybe a prism?) and feeds an MTI CCD72 TV camera.
Came with cable but not controller, which is on order.

Fig 4
Omnicon
                    3800 Tumor Colony Analyzer (TCA)
Fig 5
Omnicon
                    3800 Tumor Colony Analyzer (TCA)



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Links

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