• Topic ID: id_2030109
  • Version: 3.0
  • Date: May 20, 2022 6:20:17 AM

AVIMOS Installation and Set Up

Prerequisites

note: Properly store the eye chart and the semi-transparent film as they are used during the replacement and alignment process.

1 AVIMOS installation and set up

Prerequisites

Notice Image
  • notice
  • The table must be anchored to the floor before proceeding to execute these instructions!

Procedure

  1. Power ON the AVIMOS computer power. When the monitor light comes on and GE logo displays, press Ctrl+G+E simultaneously within 5 seconds.
  2. Enter User Name and Password (root user and its password) to access the AVIMOS service tool.


  3. Select AVIMOS Installation and Setting Up, if three cameras are correctly installed in scan room, click Next Step.


  4. If all cables are correctly connected, click Next Step.


  5. To adjust the side camera, click Next Step.


  6. When the side camera adjustment procedures display on the monitor, follow them to adjust the side camera. Click Next Step.


    1. Put the 20QA phantom onto phantom holder (without extender). You can wrap paper on the 20QA phantom surface with tape in order to see laser line clearly.
    2. Turn on laser lights and move the phantom to ISO center.
    3. Put the Eye Chart 1 onto cradle with paper edge located to the phantom holder as shown.

      Figure 1. Eye Chart 1



    4. Move the cradle in until the internal laser line located on middle the 20QA phantom in Z direction.
  7. Put the side semi-transparent film template on the monitor screen and click Next Step.


  8. Follow procedures on the monitor screen to adjust the side camera.
    note: Dim the scan room lighting equivalent to what the customer would use to align the patient with lasers.
    1. Adjust the camera position by manually manipulating the camera on the bracket until the template circle and bore align along with the center line of the table.

    2. Use the lens aperture ring to adjust the brightness of the image and lens zoom ring to size the image, use the sharpness ring to focus the image.
      note: This process is iterative and may take a few attempts. Final sharpness adjustment of the image is done in a later step.

    3. Observe the monitor screen, once the characterized target displays clearly into the expected area marked by the red dotted lines/circles, lock all adjusters, and then click Next Step.

      Figure 2. Example of red dotted areas 1 through 4



      Figure 3. Proper side camera position (left)



      Figure 4. Proper side camera position (right)



  9. Remove the semi-transparent film template from the monitor.
  10. Adjust parameters according to the site condition. Reference the following to see immediate results:
    1. Select Exposure Time (Raw) to decide the exposure time for camera. Generally if Auto is checked, it is OK.
    2. Select LightSource Selector according to site room light condition. Generally LED 5500 Kelvin is OK, but you can select others according to site YELLOW/WHITE light condition.
    3. Select Tonal Range Source Bright value. Generally 255 is OK.
    4. Select Tonal Range Source Dark value. Generally 0 is OK.
    5. Select Sharpness Enhancement value. Generally 180 is OK.
    6. Select Limit Framerate value.
      • Generally set Limit Framerate to 25 for non-Revo systems such as Revolution HD / Revolution Frontier, Optima CT520/CT540/CT620/CT670/CT680/CT660/EVO, Revolution Maxima, Tai-16, Revolution ACT, NGX/NGX-F.
      • Generally set Limit Framerate to 20 for Revolution CTES and Revolution Apex system because Revo systems.
      note: You can also select one of the Auto Mode buttons, which provides suggested LightSource Selector, Sharpness (180), and Limit Framerate values.
  11. Select Synchronize Parameters to Camera and Save to Computer button, once successful, and then click Next Step.


  12. To adjust the rear camera, click Next Step.


  13. When the rear camera adjustment procedures display on the monitor, follow them to adjust the rear camera. Click Next Step.


    1. Remove the phantom and the phantom holder from the cradle.
    2. Put the Eye Chart 1 onto cradle with paper edge located to the phantom holder as shown in Figure 1.
    3. Move the cradle in until the maximum travel limitation is reached.
  14. Put the rear semi-transparent film template on the monitor screen, click Next Step.
  15. Follow procedures on the monitor screen to adjust the rear camera.
    1. Turn on internal laser lights.
    2. Place eye chart on the table, positioning the table and chart so it is fully in view of the rear camera.

    3. Use the camera lens sharpness and zoom rings to adjust until the indicated sharpness line is seen.
    4. Tighten the sharpness and zoom locking screws on the camera lens.
    5. Observe the monitor screen, once the characterized target displays clearly into the expected area marked by the red dotted lines/circles, lock all adjusters, and then click Next Step.
  16. Adjust parameters according to the site condition. Reference the following to see immediate results:
    1. Select Exposure Time (Raw) to decide the exposure time for camera. Generally if Auto is checked, it is OK.
    2. Select LightSource Selector according to site room light condition. Generally LED 5500 Kelvin is OK but you can select others according to site YELLOW/WHITE light condition.
    3. Select Tonal Range Source Bright value. Generally 255 is OK.
    4. Select Tonal Range Source Dark value. Generally 0 is OK.
    5. Select Sharpness Enhancement value. Generally 180 is OK.
    6. Select Limit Framerate value.
      • Generally set Limit Framerate to 25 for non-Revo systems such as Revolution HD / Revolution Frontier, Optima CT520/CT540/CT620/CT670/CT680/CT660/EVO, Revolution Maxima, Tai-16, Revolution ACT, NGX/NGX-F.
      • Generally set Limit Framerate to 20 for Revolution CTES and Revolution Apex systems.
        note: You can also select one of the Auto Mode buttons which provides a suggested LightSource Selector, Sharpness (180), and Limit Framerate values.
  17. Select Synchronize Parameters to Camera and Save to Computer button, once successful, click Next Step.


  18. To adjust the front camera, click Next Step.


  19. When the front camera adjustment procedures display on the monitor, follow them to adjust the front camera. Click Next Step.


    • Put the Eye Chart 2 onto cradle front end.
    • Press HOME button until cradle reaches out max travel limitation and lowered to lowest position.
  20. Put the front semi-transparent film template on the monitor screen, click Next Step.
  21. Follow procedures on the monitor screen to adjust the front camera.
    1. Turn on internal laser lights.
    2. Place eye chart on the table, positioning the table and chart to the indicated laser alignment lines on the chart.

    3. Use camera lens to sharpness and zoom rings to adjust until the indicated sharpness line is seen.
    4. Tight the sharpness and zoom locking screws to the camera lens.
    5. Observe the monitor screen, once the characterized target displays clearly into the expected area marked by the red dotted lines/circles, lock all adjusters, and then click Next Step.
  22. Adjust parameters according to the site condition. Reference the following to see immediate results:
    1. Select Exposure Time (Raw) to decide the exposure time for camera. Generally, if Auto is checked, it is OK.
    2. Select LightSource Selector according to site room light condition. Generally, LED 5500 Kelvin is OK, but you can select others according to site YELLOW/WHITE light condition.
    3. Select Tonal Range Source Bright value. Generally 255 is OK.
    4. Select Tonal Range Source Dark value. Generally 0 is OK.
    5. Select Sharpness Enhancement value. Generally 180 is OK.
    6. Select Limit Framerate value.
      • Generally set Limit Framerate to 25 for non-Revo systems such as Revolution HD / Revolution Frontier, Optima CT520/CT540/CT620/CT670/CT680/CT660/EVO, Revolution Maxima, Tai-16, Revolution ACT, NGX/NGX-F.
      • Generally set Limit Framerate to 20 for Revolution CTES and Revolution Apex systems.
      note: You can also select one of the Auto Mode buttons which provides suggested LightSource Selector, Sharpness (180), and Limit Framerate values.
  23. Select Synchronize Parameters to Camera and Save to Computer button, once successful, click Next Step.


  24. When all camera set up is completed, click Done.


  25. Shutdown the AVIMOS system.
  26. Disconnect and remove the three (3) JIG cables, and RT45 to RJ45 connectors.
  27. Move the AVIMOS computer and the LCD monitor to the location on the console desk near the system monitors.
  28. Connect the three (3) camera cables to the AVIMOS computer.

  29. Power ON the AVIMOS computer power.
  30. Retain the eye chart and the semi-transparent film.
    note: Properly store the eye chart and the semi-transparent film as they are used during the replacement and alignment process.