Head-up display
AssigneesDENSO International America, Inc., Denso Corporation
InventorsOlga Adeyshvili, Reben Werman, Kelly Farner
Life of this patent
Estimating the term…
Abstract
A head-up display assembly including a printed circuit board having a plurality of light emitting elements. A display element is illuminated by the plurality of light emitting elements. A total internal reflection (TIR) lens array includes a plurality of TIR lenses. Each one of the plurality of TIR lenses is aligned with a different one of the plurality of light emitting elements to reflect light emitted by the plurality of light emitting elements to the display element to illuminate the display element.
Claims14
A head-up display assembly comprising:
- a printed circuit board including a plurality of light emitting elements;
- a display element illuminated by the plurality of light emitting elements;
- a total internal reflection (TIR) lens array including a plurality of TIR lenses arranged in linearly aligned rows and vertically staggered columns, each one of the plurality of TIR lenses includes a first light transmission plane at a light input aperture and a second light transmission plane through which light exits the plurality of TIR lenses, each one of the plurality of TIR lenses is aligned with a different one of the plurality of light emitting elements to reflect and refract light emitted by the plurality of light emitting elements to the display element to illuminate the display element;
- and
- a plurality of negative lenslets extending across a front side of the TIR lens array at the second light transmission planes of the plurality of TIR lenses, the plurality of negative lenslets configured to facilitate collimation, divergence, and convergence of light emitted by the plurality of light emitting elements.
A head-up display assembly comprising:
- a printed circuit board including a plurality of light emitting elements;
- a display element illuminated by the plurality of light emitting elements;
- and
- a total internal reflection (TIR) lens array including a plurality of TIR lenses arranged in linearly aligned rows and vertically staggered columns;
- a light input aperture defined by each one of the plurality of TIR lenses, the light input aperture of each one of the plurality of TIR lenses receives light emitting radiation from a different one of the plurality of light emitting elements to reflect light and illuminate the display element;
- each one of the plurality of TIR lenses includes a first light transmission plane at the light input aperture, a refractive plane surrounding the light input aperture and the first light transmission plane, and a second light transmission plane through which light exits the plurality of TIR lenses;
- a curved lens included with the first light transmission plane, the curved lens between one of the light emitting elements and the second light transmission plane;
- a sidewall included with the first light transmission plane, the sidewall extending about the light input aperture;
- and
- a plurality of negative lenslets extending across a front side of the TIR lens array at the second light transmission planes of the plurality of TIR lenses, the plurality of negative lenslets configured to facilitate collimation, divergence, and convergence of light emitted by the plurality of light emitting elements.
Dependencies are inferred from the claim text.