This display system is similar to a conventional haploscope, in that we can present slightly different views to the left and right eye to simulate 3D space. The key difference, however, is that each display has multiple focal planes, allowing us to vary the focal distance of the presented scene. Unlike conventional stereoscopic displays, we can therefore control not only the geometical structure of the retinal images, but also the stimulus to the eyes' focusing response (accommodation) near-correctly.

In conjunction with eye-tracking and measurement of accommodation, we are using this device to test:

1. Basic questions regarding accommodation control, and the coupling of the vergence and accommodation systems.

2. Applied questions regarding the effectiveness and usability of stereo displays and 3d visualisation.

[Project funded by EPSRC]