The Vision Window Properties Dialog Box

The dialog box appears when you select Properties by right-clicking in the window for the context menu.

This dialog box contains controls for:

This page discusses:

Visual Field Limits



Central

The central field limit illustrates by the yellow circle zone on the picture. It is the maximal view angle limit around the line of sight for activities such as reading, symbols recognition, and color discrimination. The predefined central limit values are the followings:

  • Fovea (maximum visual acuity) = 5 degrees.
  • Reading = 20 degrees.
  • Symbols Recognition = 40 degrees.
  • Colors Discrimination = 60 degrees.

The central visual limit can get any value 1 and 100 specifies at the Custom Value.

Peripheral

The peripheral visual field limit separates what the manikin can see from the rest of the world. What they cannot see because obstructions around the eyes especially the nose, eyebrows, and cheeks.

Vertical:
This parameter defines the vertical limit of the visual field. The default value of this angle is 100 degrees.
Horizontal (Binocular):
This parameter defines the horizontal limit of the binocular visual field (the white zone on the picture). The default value of this angle is 90 degrees.
Horizontal (Ambinocular):
This parameter defines the horizontal limit of the ambinocular visual field (the red zone on the picture). It represents the entire field of view that we can see with our eyes. The default value of horizontal limit angle is 160 degrees.
Reset
This return to default settings.

Window View Angles

Edit the vertical and the horizontal view angles of the sight window.

Vertical (Zooming)
The modification of the vertical view angle of the window camera does not change the dimension of the sight window but the dimension of the subject field. It produces a kind of zooming effect.
Horizontal (Enlargement)
The modification of the horizontal view angle in the window camera changes the dimension of the sight window.
Reset
This return to the default settings.

Distances

These parameters correspond to the depths of the minimal and maximal fields as well as the distance from the focal point. The diagram illustrates the dimensions used by the distance parameters.



Ponctum proximum (1)
This parameter defines the minimum accommodation distance or depth. This value corresponds to the nearest point that is clear.
The value is 50 millimeters.
Focus distance (2)
The focus or focal distance corresponds to the length of the active line of sight.
The value is 300 millimeters.
Ponctum remotum (3)
This parameter defines the maximum accommodation distance. It corresponds to the crystalline relax position for objects located from a distance of five meters to the infinite.
The parameter specifies too infinite.
Reset
This return to the default settings.