| 摘要 |
<p>Optical system intended for magnifying images, such as those produced by televisions. For this purpose an optical system is used such as an assembly comprising at least one thick lens (12) or its equivalent (for example a Fresnel lens) placed very close to the image (10) to be magnified and which enables a magnified image to be obtained, with the possibility, for an observer (13) of moving over quite a large area whilst observing an image without annoying distortion. <IMAGE></p> |
