Collimation lens module and light source module using the same
First Claim
1. A collimating lens module adapted for collimating light and outputting collimated light, the collimating lens module comprising:
- a first lens configured for receiving the light, wherein the first lens is a negative aspheric lens;
a second lens disposed on the first lens, wherein the second lens is a positive lens;
a third lens disposed on the second lens, wherein the third lens is a negative lens;
a fourth lens disposed on the third lens, wherein the fourth lens is a positive lens; and
a fifth lens disposed on the fourth lens, wherein the fifth lens is a positive aspheric lens and configured for outputting the collimated light;
wherein the fourth lens and the fifth lens are plano-convex lenses, and a convex portion of the fourth lens is opposite to a convex portion of the fifth lens, and the first lens and the third lenses are plano-concave lenses, and a concave portion of the first lens does not face the second lens, the third lens, the fourth lens and the fifth lens.
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Accused Products
Abstract
A collimating lens module and a light source module using the same are provided. The collimating lens module includes a first lens, a second lens, a third lens, a fourth lens and a fifth lens. The first lens is configured for receiving light, wherein the first lens is a negative aspheric lens. The second lens is disposed on the first lens, wherein the second lens is a positive lens. The third lens is disposed on the second lens, wherein the third lens is a negative lens. The fourth lens is disposed on the third lens, wherein the fourth lens is a positive lens. The fifth lens is disposed on the fourth lens, wherein the fifth lens is a positive aspheric lens and configured for outputting collimated light. The light source module includes the collimating lens module and a light emitting diode (LED).
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Citations
20 Claims
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1. A collimating lens module adapted for collimating light and outputting collimated light, the collimating lens module comprising:
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a first lens configured for receiving the light, wherein the first lens is a negative aspheric lens; a second lens disposed on the first lens, wherein the second lens is a positive lens; a third lens disposed on the second lens, wherein the third lens is a negative lens; a fourth lens disposed on the third lens, wherein the fourth lens is a positive lens; and a fifth lens disposed on the fourth lens, wherein the fifth lens is a positive aspheric lens and configured for outputting the collimated light; wherein the fourth lens and the fifth lens are plano-convex lenses, and a convex portion of the fourth lens is opposite to a convex portion of the fifth lens, and the first lens and the third lenses are plano-concave lenses, and a concave portion of the first lens does not face the second lens, the third lens, the fourth lens and the fifth lens. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 19, 20)
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9. A light source module adapted for providing collimated light, the light source module comprising:
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a light emitting diode (LED) configured for emitting light; a collimating lens module configured to collimate the light and output collimated light, wherein the collimating lens module comprises; a first lens configured for receiving the light, wherein the first lens is a negative aspheric lens; a second lens disposed on the first lens, wherein the second lens is a positive lens; a third lens disposed on the second lens, wherein the third lens is a negative lens; a fourth lens disposed on the third lens, wherein the fourth lens is a positive lens; and a fifth lens disposed on the fourth lens, wherein the fifth lens is a positive aspheric lens and configured for outputting the collimated light; wherein the fourth lens and the fifth lens are plano-convex lenses, and a convex portion of the fourth lens is opposite to a convex portion of the fifth lens, and the first lens and the third lenses are plano-concave lenses, and a concave portion of the first lens does not face the second lens, the third lens, the fourth lens and the fifth lens. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification