Coherent light generators – Particular active media – Semiconductor
Patent
1992-04-21
1994-06-28
Epps, Georgia Y.
Coherent light generators
Particular active media
Semiconductor
372 45, 359214, 359215, H01S 319
Patent
active
053253868
ABSTRACT:
A visual display system is disclosed which utilizes one- and/or two-dimensional arrays of visible emitting vertical-cavity surface-emitting lasers (VCSELs) in order to provide a desired visual display within an observer's field of view. Sweep and subscanning techniques are employed, individually or in combination, to create a full M.times.N image from 1.times.L or K.times.L arrays of VCSELs, where M and N are multiple integers of K and L, respectively. Preferably, the VCSELs are contained within a display housing which may be attached to the head of the user by an attachment mechanism or may alternatively be hand held or mounted to a surface. The circular symmetry and low divergence of the emitted VCSEL radiation as well as the availability of multiple wavelengths, particularly, red, blue and green, allow high resolution monochrome or color images to be generated.
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Jewell Jack L.
Olbright Gregory R.
Bandgap Technology Corporation
Epps Georgia Y.
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