VEHICLE LIGHT AND MULTI-FOCAL LENS
First Claim
1. A vehicle light comprising:
- a multi-focal lens that has, a mid-level lens portion whose focal point is located on an optical axis extending in a front-to-rear direction, and an upper-level lens portion located above the mid-level lens portion and whose focal point is located diagonally frontward and above the focal point of the mid-level lens portion;
a separator plate configured in a face-down state with respect to a horizontal plane and located at a rear of the multi-focal lens, the separator plate having a front edge positioned substantially at the focal point of the mid-level lens portion;
a first light emitting element mounted on a top of the separator plate at a rear portion located a substantial distance from the front edge of the separator plate, the first light emitting element facing upwards;
a second light emitting element mounted on a bottom of the separator plate and spaced from the front edge of the separator plate, the second light emitting element facing downwards;
a first elliptical reflecting surface located on the top of the separator plate, the first elliptical reflecting surface having a first focal point located substantially at the first light emitting element and a second focal point located substantially at the focal point of the mid-level lens portion; and
a second elliptical reflecting surface located on the bottom of the separator plate, the second elliptical reflecting surface having a first focal point located substantially at the second light emitting element and a second focal point located substantially at the focal point of the upper-level lens portion, whereinthe vehicle light is configured such that the first light emitting element and the second light emitting element selectively emit light beams.
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Accused Products
Abstract
A headlight can form a light distribution pattern that prevents uneven brightness when the headlight is set to a high beam mode, and also minimizes power consumption when the headlight is set to the high beam mode. The vehicle light can include a multi-focal lens that has a mid-level lens portion, an upper-level lens portion, and lower-level lens portion. A separator plate can have a front edge positioned at or near the focal point of the mid-level lens portion. Light emitting elements can be mounted on top and bottom of the separator plate, respectively. A first elliptical reflecting surface whose first focal point is set at or near the first light emitting element and whose second focal point is set at or near the focal point of the mid-level lens portion can be provided. A second elliptical reflecting surface can also be provided whose first focal point is set at or near the second light emitting element and whose second focal point is set at or near the focal point of the upper-level lens portion. A hyperbolic reflecting surface can be located adjacent the second elliptical reflecting surface and can have an inner focal point set at or near the second light emitting element and an outer focal point set at or near the focal point of the lower-level lens portion. The vehicle light can be configured such that the first light emitting element and the second light emitting element can selectively emit light beams.
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Citations
24 Claims
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1. A vehicle light comprising:
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a multi-focal lens that has, a mid-level lens portion whose focal point is located on an optical axis extending in a front-to-rear direction, and an upper-level lens portion located above the mid-level lens portion and whose focal point is located diagonally frontward and above the focal point of the mid-level lens portion; a separator plate configured in a face-down state with respect to a horizontal plane and located at a rear of the multi-focal lens, the separator plate having a front edge positioned substantially at the focal point of the mid-level lens portion; a first light emitting element mounted on a top of the separator plate at a rear portion located a substantial distance from the front edge of the separator plate, the first light emitting element facing upwards; a second light emitting element mounted on a bottom of the separator plate and spaced from the front edge of the separator plate, the second light emitting element facing downwards; a first elliptical reflecting surface located on the top of the separator plate, the first elliptical reflecting surface having a first focal point located substantially at the first light emitting element and a second focal point located substantially at the focal point of the mid-level lens portion; and a second elliptical reflecting surface located on the bottom of the separator plate, the second elliptical reflecting surface having a first focal point located substantially at the second light emitting element and a second focal point located substantially at the focal point of the upper-level lens portion, wherein the vehicle light is configured such that the first light emitting element and the second light emitting element selectively emit light beams. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A multi-focal lens comprising:
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a mid-level lens portion having a focal point located on an optical axis extending in a front-to-rear direction; and an upper-level lens portion that is located above the mid-level lens portion and having a focal point located diagonally frontward and above the focal point of the mid-level lens portion. - View Dependent Claims (22, 23, 24)
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Specification