One of his interests is the optical properties of biological materials.

他的兴趣之一是生物材料的光学特性。

The essential feature of LCDs is that the pixels in them switch between amorphous and crystal-like phases, which changes their optical properties.

LCD的基本特征是其像素在非晶相和类晶相间转化，因此改变其光学性质。

This, though, does not affect the system's optical properties and it can, indeed, see small, faint objects that are near large, bright ones.

尽管如此，这并不影响整个系统的视觉特性，并且，它也确实能够看见巨大且明亮的恒星旁边那些小型且微弱的物体。