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US 12,746,872 B2Granted
Communication lamp and control method of communication lamp
AssigneeHyundai Mobis Co., Ltd.
InventorYong Hee Won
Life of this patent
Estimating the term…
Abstract
The present invention relates to a lamp, and more particularly, to a vehicle lamp. A communication lamp and a control method of the communication lamp according to the present invention are capable of implementing both a technology of performing light irradiation using a road surface in front of a vehicle as a screen and a technology of performing light irradiation using a vehicle grille as a screen without adding an additional component, by applying a polymer-dispersed liquid crystal (PDLC) film whose transmittance changes depending on whether or not a voltage is received and automatically adjusting a phase of an optical system according to the transmittance.
Claims8
A communication lamp comprising:
- a selective transmission film whose light transmittance is adjusted according to a control signal;
- an optical system including a light source, first and second optical systems irradiated with light from the light source and configured to transfer the light to outside the communication lamp, and a housing in which the first optical system and the second optical system are housed;
- a moving unit configured to move the first and second optical systems linearly along grooves or protrusions inside the housing;
- and
- a control unit configured to receive information from inside the communication lamp and outside the communication lamp, and configured to control the selective transmission film, the light source, and the moving unit based on the received information.
2 more elements
A communication lamp comprising:
- a selective transmission film whose light transmittance is adjusted according to a control signal;
- an optical system including a light source, first and second optical systems irradiated with light from the light source and configured to transfer the light to outside the communication lamp, and a housing in which the first optical system and the second optical system are housed;
- a moving unit configured to change positions of the first and second optical systems;
- and
- a control unit configured to receive information from inside the communication lamp and outside the communication lamp, and configured to control the selective transmission film, the light source, and the moving unit based on the received information,
- wherein:
- the housing has a central portion extending in a predetermined extension direction and an intersecting portion extending in a direction perpendicular to the central portion and having a predetermined region intersecting the central portion,
- the selective transmission film is disposed outside the housing and disposed on one side of the housing in the extension direction of the central portion,
- the first optical system is housed in the central portion, and
- the second optical system is housed in the intersecting portion.
7 more elements
A communication lamp comprising:
- a selective transmission film whose light transmittance is adjusted according to a control signal;
- an optical system including a light source, first and second optical systems irradiated with light from the light source and configured to transfer the light to outside the communication lamp, and a housing in which the first optical system and the second optical system are housed;
- a moving unit configured to change positions of the first and second optical systems;
- and
- a control unit configured to receive information from inside the communication lamp and outside the communication lamp, and configured to control the selective transmission film, the light source, and the moving unit based on the received information,
- wherein:
- the control unit receives navigation information, and
- in a case where the navigation information indicates that a current location is within an area designated as a downtown, the control unit determines a second mode as a light irradiation mode, at least partially supplies power to the selective transmission film to perform control in such a way that the selective transmission film has a predetermined light transmittance, and controls the moving unit in such a way that the optical system is at a second position where the light from the light source sequentially passes through the first optical system and the second optical system.
5 more elements
Dependencies are inferred from the claim text.