SPREAD LIGHT LENS AND LED STRIP LIGHTS HAVING SAME
First Claim
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1. A spread light lens, comprising:
- a plurality of optical axes, the optical axes been arrange in a line;
a light incidence surface being perpendicular to the optical axes;
a first convex light emitting surface arranged at interval with the light incidence surface, a radius of curvature of a profile of the first convex light emitting surface on a cross section taken along the optical axes increasing gradually towards a direction which is far away from the optical axes; and
a second convex light emitting surface arranged at interval with the light incidence surface, the first, second convex light emitting surfaces been arranged at both sides of the optical axes, a radius of curvature of a profile of the second convex light emitting surface on the cross section taken along the optical axes decreasing gradually towards the direction which is far away from the optical axes, the radius of curvature of the profile of the first convex light emitting surface being larger than that of the second convex light emitting surface on the cross section taken along the optical axes.
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Abstract
An LED strip light.
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Citations
12 Claims
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1. A spread light lens, comprising:
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a plurality of optical axes, the optical axes been arrange in a line; a light incidence surface being perpendicular to the optical axes; a first convex light emitting surface arranged at interval with the light incidence surface, a radius of curvature of a profile of the first convex light emitting surface on a cross section taken along the optical axes increasing gradually towards a direction which is far away from the optical axes; and a second convex light emitting surface arranged at interval with the light incidence surface, the first, second convex light emitting surfaces been arranged at both sides of the optical axes, a radius of curvature of a profile of the second convex light emitting surface on the cross section taken along the optical axes decreasing gradually towards the direction which is far away from the optical axes, the radius of curvature of the profile of the first convex light emitting surface being larger than that of the second convex light emitting surface on the cross section taken along the optical axes. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An LED strip light, comprising:
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a strip-typed holder; a plurality of LED chips arranged on the strip-typed holder along length direction thereof; and a spread light lens arranged on the emergent light of the LED chips, comprising; a plurality of optical axes, the optical axes been arrange in a line; a light incidence surface being perpendicular to the optical axes; a first convex light emitting surface arranged at interval with the light incidence surface, a radius of curvature of a profile of the first convex light emitting surface on a cross section taken along the optical axes increasing gradually towards a direction which is far away from the optical axes; and a second convex light emitting surface arranged at interval with the light incidence surface, the first, second convex light emitting surfaces been arranged at both sides of the optical axes, a radius of curvature of a profile of the second convex light emitting surface on the cross section taken along the optical axes decreasing gradually towards the direction which is far away from the optical axes, the radius of curvature of the profile of the first convex light emitting surface being larger than that of the second convex light emitting surface on the cross section taken along the optical axes; wherein an emitting light of the first convex light emitting surface illuminate an illuminated area which is closer to the LED strip light, an emitting light of the second convex light emitting surface illuminate an illuminated area which is father to the LED strip light. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification