Stereoscopic image apparatus

A stereoscopic image apparatus comprising:

• a polarizing beam splitter adapted to split an incident image light into a transmitted light having a first state of polarization, and first and second reflected lights having a second state of polarization, the second state being different from the first state,
• wherein the polarization beam splitter has at least two plates joined to each other, and a junction of the two plates is located on a path of the incident image light;
• first and second reflective members configured to modify paths of the first and the second reflected lights so that the transmitted light and the first and the second reflected lights are projected to form a single stereoscopic image on an image-forming surface;
• wherein the single stereoscopic image is formed by overlapping of a first image formed from the transmitted light and a second image formed from the first and second reflected lights on a substantially same area on the image-forming surface,
• wherein the second image is formed by combining the first and second reflected lights on the image-forming surface, the second image having at least one non-overlapped area;
• first, second and third polarization modulators configured to selectively switch the polarization states of the transmitted light and the first and the second reflected lights between the first and the second states of polarization,
• wherein the first, the second and the third polarization modulators are controlled to selectively switch the polarization states of the transmitted light and the first and the second reflected lights to have the same state of polarization at a given instant.