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US 10,761,342 B2Granted
Floating hologram apparatus
AssigneeKt Corporation
InventorsSeung Cheol Kim, Jong Heum Kim, Tae Gil Yang, Sang Hoon Han
Life of this patent
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Abstract
A floating hologram apparatus includes a display including a first output area to output a first hologram image and a second output area to output a second hologram image and a prism array positioned in front of the display and configured to refract rays of the first hologram image and the second hologram image. The prism array includes multiple prisms of which a first facet to which a ray of the second hologram image is incident and a second facet to which a ray of the first hologram image is incident have different angles.
Claims19
A floating hologram apparatus, comprising:
- a display including a first output area to output a first hologram image and a second output area to output a second hologram image;
- a prism array, in front of the display, to refract rays of the first hologram image and the second hologram image;
- a first filter, between the display and the prism array, to control a field of view by passing a part of rays of the first hologram image and blocking a remaining part of rays of the first hologram image;
- and
- a second filter, between the display and the prism array, to control a field of view by passing a part of rays of the second hologram image and blocking a remaining part of rays of the second hologram image,
- wherein the prism array includes multiple prisms consecutively arranged,
- wherein each of the multiple prisms includes an incident surface, a first facet to which a ray of the second hologram image is incident, and a second facet to which a ray of the first hologram image is incident,
- wherein a first angle between the incident surface and the first facet is different from a second angle between the incident surface and the second facet,
- wherein both the first filter and the second filter respectively have a bottom surface, a top surface, and multiple barriers that are positioned between the bottom surface and the top surface and arranged with space therebetween, and
- wherein the first filter and the second filter each overlap with the display and the prism array when viewed from a direction perpendicular to the prism array,
- wherein the first filter is slanted from the display toward the prism array to control a pass angle of the rays of the first hologram image by the multiple barriers and the second filter is slanted from the display toward the prism array to control a pass angle of the rays of the second hologram image by the multiple barriers.
8 more elements
A floating hologram apparatus comprising:
- a first display configured to output a first hologram image;
- a second display configured to output a second hologram image;
- a prism array configured to refract rays of the first hologram image and the second hologram image;
- a first filter, between the first display and the prism array, to control a field of view by passing a part of rays of the first hologram image and blocking a remaining part of rays of the first hologram image;
- and
- a second filter, between the second display and the prism array, to control a field of view by passing a part of rays of the second hologram image and blocking a remaining part of rays of the second hologram image,
- wherein the prism array includes multiple prisms consecutively arranged,
- each of the multiple prisms respectively includes an incident surface, a first facet to which a ray of the second hologram image is incident and a second facet to which a ray of the first hologram image is incident, and
- a first angle between the incident surface and the first facet is different from a second angle between the incident surface and the second facet,
- both the first filter and the second filter respectively have a bottom surface, a top surface, and multiple barriers which are positioned between the bottom surface and the top surface and arranged with space therebetween, and
- wherein the first filter and the second filter each overlap with the first and second displays and the prism array when viewed from a perpendicular direction to the prism array,
- wherein the first filter is slanted from the display toward the prism array to control a pass angle of the rays of the first hologram image by the multiple barriers and the second filter is slanted from the display toward the prism array to control a pass angle of the rays of the second hologram image by the multiple barriers.
9 more elements
Dependencies are inferred from the claim text.