Eye patches: Protein assembly of index-gradient squid lenses

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Biomimetic Gradient Index (GRIN) Lenses

A new class of hierarchically structured polymer optical materials possessing an internal refractive index gradient that mimics biological optical materials is described. The new materials permit the fabrication of gradient refractive index (GRIN) lenses with an unprecedented variety of index gradients. Gradients with different functional forms in both the radial and axial directions have been ...

متن کامل

Evolution of graded refractive index in squid lenses.

A lens with a graded refractive index is required for vision in aquatic animals with camera-type eyes. This optical design entails a radial gradient of protein density, with low density in external layers and high density in internal layers. To maintain the optical stability of the eye, different material properties are required for proteins in different regions of the lens. In low-density regi...

متن کامل

Superior to one of Glass: Natural Gradient index Lenses via Patchy Particle Self-Assembly

To achieve acute and sensitive vision in a camera-like eye in the ocean, a graded refractive index spherical lens is required to maximize the photon flux on the retina, while leaving an eye structure that fits in the head of an animal. This biological lens must also maintain low protein density fluctuation at the length-scale of a wavelength of visible light in order to maintain transparency. I...

متن کامل

Birefringent properties of diametrically loaded gradient-index lenses.

Gradient-index (GRIN) lenses have been widely used as collimators in various fiber-optic sensors and as optical coupling devices in components designed for optical communication systems. However, relatively little attention has been paid to the birefringent properties of GRIN lenses and the potential for using them as photoelastic sensing elements in optical transducers. Analytical and experime...

متن کامل

Fabrication of Polymeric, Nanolayered, Spherical, Gradient Refractive Index (GRIN) Lenses

A nanolayered polymer films fabrication approach creating Gradient Refractive INdex (GRIN) lenses with designer RI distribution profiles is reviewed. Fabricated GRIN examples are presented demonstrating unparalleled RI profile design freedom and scalable optic size. OCIS codes: (080.0080) Geometric Optics; (160.0160) Materials

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Science

سال: 2017

ISSN: 0036-8075,1095-9203

DOI: 10.1126/science.aal2674