Collimation lens module and light source module using the same
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United States of America Patent
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Oct 15, 2019
Grant Date -
May 25, 2017
app pub date -
Nov 25, 2015
filing date -
Nov 25, 2015
priority date (Note) -
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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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