Transition between virtual environment and workstation environment with projective head mounted display

The construction of virtual worlds often requires the user to use various tools in different environments to create several types of elements which have geometrical properties and behavioral characteristics. Due to the inconveniences associated with this task, a compound environment for the task of constructing virtual worlds was proposed. This environment contains both the popular workstation as well as a surrounding virtual world. To realize this compound environment, a Projective Head Mounted Display (PHMD) prototype was developed, which effectively minimized the difficulty of going and coming between workstation and virtual environments. The PHMD was also able to address the problem that is common to traditional HMDs which involve false images. The concept and development behind the PHMD and the compound environment are discussed, and the prototype PHMD and the prototype application examples are constructed.