An image display device projects lights emitted from each of two two-dimensionally light emitting type photoelectric devices onto first and second light diffusing bodies, and projects and images transmitted images of the light diffusing bodies onto the retina in the respective eyeballs of the user.
An image display device projects lights emitted from each of two two-dimensionally light emitting type photoelectric devices onto first and second light diffusing bodies, and projects and images transmitted images of the light diffusing bodies onto the retina in the respective eyeballs of the user. The display device includes one light source, a first polarization beam splitter dividing light emitted from the light source into P-polarized light and S-polarized light, and an optical system which leads each of the P-polarized light and S-polarized lights respectively to the two photoelectric devices thereby illuminating the two photoelectric devices. The optical system leads polarized light to each of the two photoelectric devices via a second polarization beam splitter and a λ/4 plate, and leads reflected lights to the relay optical system via the λ/4 plate and the second polarization beam splitter.
대표청구항▼
The invention claimed is: 1. An image display device that: (i) projects, via a relay optical system, lights emitted from each of two two-dimensionally light emitting type photoelectric devices which are perpendicular to a light beam emitting direction onto first and second light diffusing bodies th
The invention claimed is: 1. An image display device that: (i) projects, via a relay optical system, lights emitted from each of two two-dimensionally light emitting type photoelectric devices which are perpendicular to a light beam emitting direction onto first and second light diffusing bodies that are independent of each other relative to right and left eyes of a user, and (ii) projects and images transmitted images of said light diffusing bodies onto a retina in the respective right and left eyes of the user via first and second eyepiece optical systems which respectively correspond to the first and second light diffusing bodies, wherein the imaged transmitted images are wide range images having a field of view angle of at least ±22.5 degrees, wherein said two two-dimensionally light emitting type photoelectric devices are each a reflection type liquid crystal device element, and wherein the image display device further comprises: one light source, a first polarization beam splitter that divides light emitted from said light source into P-polarized light and S-polarized light, and an optical system that leads each of the divided P-polarized light and S-polarized light respectively to said two two-dimensionally light emitting type photoelectric devices, thereby illuminating said two two-dimensionally light emitting type photoelectric devices, wherein the optical system leads the lights reflected by each of said two two-dimensionally light emitting type photoelectric devices to said relay optical system via a second polarization beam splitter, and wherein the reflected lights are one of the P-polarized light converted from the S-polarized light and the S-polarized light converted from the P-polarized light. 2. The image display device according to claim 1, wherein said light source comprises a plurality of white light LEDs two-dimensionally arranged in an array form. 3. The image display device according to claim 1,wherein said light source comprises: a group of R color LEDs, a group of G color LEDs, a group of B color LEDs, and an RGB light beam division multiplexer prism that combines lights emitted by the R, G and B groups, wherein each group comprises plurality of LEDs of the respective color two-dimensionally arranged in an array form. 4. The image display device according to claim 1, wherein the optical system, which leads the light emitted from said light source to each of said two two-dimensionally light emitting type photoelectric devices, comprises an illumination uniformizing optical system. 5. The image display device according to claim 4, wherein said illumination uniformizing optical system comprises at least one rod, and wherein a final exit plane of said rod and a surface of a corresponding two-dimensionally light emitting type photoelectric device are made substantially conjugate with each other. 6. An image display device that: (i) projects, via a relay optical system, lights emitted from each of two sets of two-dimensionally light emitting type photoelectric devices which are perpendicular to a light beam emitting direction onto first and second light diffusing bodies that are independent of each other relative to right and left eyes of a user, and (ii) projects and images transmitted images of said light diffusing bodies onto a retina in the respective right and left eyes of the user via first and second eyepiece optical systems which respectively correspond to the first and second light diffusing bodies, wherein the imaged transmitted images are wide range images having a field of view angle of at least ±22.5 degrees, and wherein each of said two sets of two-dimensionally light emitting type photoelectric devices comprises three reflection type liquid crystal device elements, each corresponding to one of the colors of G, B, and R, and wherein the image display device further comprises: one light source, a first polarization beam splitter that divides light emitted from said light source into P-polarized light and S-polarized light, and an optical system that leads each of the divided P-polarized light and S-polarized light respectively to said two sets of two-dimensionally light emitting type photoelectric devices, thereby illuminating said two sets of two-dimensionally light emitting type photoelectric devices, wherein the optical system leads the lights reflected by said two sets of two-dimensionally light emitting type photoelectric devices to said relay optical system, and wherein said optical system respectively leads said P-polarized light and S-polarized light to each of said two sets of two-dimensionally light emitting type photoelectric devices, which accommodate the colors of G, B, and R, via a second polarization beam splitter and an RGB light beam division multiplexer prism, and leads the reflected lights to said relay optical system via said RGB light beam division multiplexer prism and said second polarization beam splitter, and wherein the reflected lights are one of the P-polarized light converted from the S-polarized light and the S-polarized light converted from the P-polarized light. 7. The image display device according to claim 6, wherein said light source comprises a plurality of white light LEDs two-dimensionally arranged in an array form. 8. The image display device according to claim 6, wherein said light source comprises: a group of R color LEDs, a group of G color LEDs, a group of B color LEDs, and an RGB light beam division multiplexer prism that combines lights emitted by the R, G and B groups, wherein each group comprises a plurality of LEDs of the respective color two-dimensionally arranged in an array form. 9. The image display device according to claim 6, wherein the optical system, which leads the light emitted from said light source to each of said two sets of two-dimensionally light emitting type photoelectric devices, comprises an illumination uniformizing optical system. 10. The image display device according to claim 9, wherein said illumination uniformizing optical system comprises at least one rod, and wherein a final exit plane of said rod and a surface of said a corresponding set of two-dimensionally light emitting type photoelectric devices are made substantially conjugate with each other.
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