Head mounted device

Details Head mounted device Head mounted device

2007-12-11

2007-12-11

Dang, Hung X. (Department: 2873)

Optical: systems and elements

Single channel simultaneously to or from plural channels

By partial reflection at beam splitting or combining surface

C359S649000, C359S664000, C359S708000

Reexamination Certificate

active

10906360

ABSTRACT:
A head-mounted display (HMD) comprises a frame for hanging on a user's head, and a display device affixed to the frame. The display device comprises alight source, a driving circuit for generating data signals, a polarization beam splitter (PBS), for passing the light emitted from the light source, a liquid crystal on silicon panel (LCOS panel) for reflecting the light from the PBS based on the data signal generated by the driving circuit, and a lens group including a biconvex glass spherical prism and an aspherical plastic prism. The lens group is used for focusing the reflected light from the LCOS panel.

REFERENCES:
patent: 4577935 (1986-03-01), Yamakawa et al.
patent: 6839181 (2005-01-01), Cobb et al.

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