Patent ID: 11899210
Assignee: BLUE OPTECH CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC F  G

Claim 0:
1. A wearable image display comprising:
an image light output unit for outputting an image as image light;
an image light transmission unit for transmitting the image light output from the image light output unit;
an image light emitting unit for emitting the image light transmitted from the image light transmission unit to the outside;
wherein:
the image light output unit and a part of the image light transmission unit constitutes an image source side section;
the rest of the image light transmission unit and the image light emitting unit constitute an image display side section;
the image source side section and the image display side section are separately divided into unit structures,
the image light output unit includes:
a light source,
a light control component for controlling the light from the light source to make a controlled light, and
a reflective image modulation device for reflecting the controlled light to output the image light;

the image light transmission unit includes:
a polarization beam splitter for reflecting the controlled light from the light control component to the reflective image modulation device,
a light reflector for reflecting the image light from the reflective image modulation device passing through the polarization beam splitter to the polarization beam splitter side,
a quarter-wave plate disposed between the polarization beam splitter and the light reflector,
a transit optics for relaying the image light from the reflective image modulation device, passing though the polarization beam splitter, passing though the quarter-wave plate, reflected by the light reflector, passing though the quarter-wave plate again and reflected by the polarization beam splitter, and
a light guide plate for guiding the image light relayed by the transit optics to the image light output unit;

the image light output unit includes:
a plurality of half mirrors disposed in a light guide plate for emitting the image light guided in the light guide plate to the outside;

the image source side section includes the light source, the light control component, the reflection type image modulation device, the light reflector and the quarter-wave plate in a unit structure; and
the image display side section includes the polarization beam splitter, the transit optics, the light guide plate, and the plurality of half mirrors in a unit structure.