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aspherical |
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aspherical Literally 'not spherical' but this term is usually restricted to surfaces of revolution having identical but non-circular (e.g. parabolic) sections in all meridians (British Standard). See aspherical lens. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Investigations into arrangements of spheres date back centuries, but research into how efficiently aspherical objects aggregate has received scant attention. The lightweight and easily portable EGG Photo360 lens features a sleek leading-edge design, an aspherical optic, and requires no plug-ins. Astigmatism--A lop-sided or non-round eye usually caused by an aspherical cornea causes an astigmatism. |
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