| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical component designed such that birefringence and crack, arising from differences in thermal expansion coefficient between optical functioning parts, such as a transparent substrate and a micro lens array, are restrained and high optical performance is exhibited, and to provide a micro lens array substrate, and a manufacturing method for them. <P>SOLUTION: The micro lens array substrate according to the invention includes the transparent substrate 1, and the micro lens array 2 formed on the transparent substrate 1. Each of the micro lenses 21 composing the micro lens array 2 is made of high-melting-point glass powders 212 and low-melting-point glass powders 213. Where the thermal expansion coefficient of the high-melting glass powders 212 is α1, the thermal expansion coefficient of the low-melting glass powders 213 is α2, and the thermal expansion coefficient of the transparent substrate 1 is αb, the following relation is established: α1<αb<α2. <P>COPYRIGHT: (C)2007,JPO&INPIT |
