Light guide device and electronic device including the same
AssigneeLG Innotek Co., Ltd.
InventorBum Jin KIM
Life of this patent
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Abstract
Embodiments disclose a light guide device including a projector including a lens disposed to emit light and a barrel coupled to the lens, a first substrate that guides the light emitted from the projector, a first diffraction element region that is disposed on the first substrate and receives the light, and a second diffraction element region disposed on the first substrate and spaced apart from the first diffraction element region, wherein the lens includes a first lens disposed closest to the first substrate, the first diffraction element region overlaps the first lens of the projector in an optical axis direction of the first lens, and a diameter of the first diffraction element region of the first substrate is smaller than a diameter of the first lens of the projector.
Claims17
A light guide device comprising:
- a projector including a lens disposed to emit light and a barrel coupled to the lens;
- a first substrate that guides the light emitted from the projector;
- a first diffraction element region that is disposed on the first substrate and receives the light;
- and
- a second diffraction element region disposed on the first substrate and spaced apart from the first diffraction element region,
- wherein the lens includes a first lens disposed closest to the first substrate,
- the first diffraction element region overlaps the first lens of the projector in an optical axis direction of the first lens, and
- a diameter of the first diffraction element region of the first substrate is smaller than a diameter of the first lens of the projector.
A light guide device comprising:
- a projector including a lens disposed to emit light and a barrel coupled to the lens;
- a first substrate that guides the light emitted from the projector and disposed adjacent to the projector and a second substrate disposed under the first substrate;
- a first diffraction element region that is disposed on the first substrate and receives the light;
- and
- a second diffraction element region disposed on the first substrate and spaced apart from the first diffraction element region,
- wherein the lens includes a first lens disposed closest to the first substrate,
- the first diffraction element region overlaps the first lens of the projector in an optical axis direction of the first lens, and
- a diameter of the first diffraction element region of the first substrate is smaller than a diameter of the first lens of the projector.
Dependencies are inferred from the claim text.