Aspherical lens for optical fiber and optically coupling constru

Details Aspherical lens for optical fiber and optically coupling constru Aspherical lens for optical fiber and optically coupling constru

1996-09-05

1998-06-09

Bovernick, Rodney B.

Optical waveguides

With disengagable mechanical connector

Optical fiber to a nonfiber optical device connector

385 33, 359708, G02B 636

Patent

active

057648387

ABSTRACT:
A construction in which a light emitting/receiving element and an optical fiber are optically coupled by a lens system formed by a biconvex aspherical lens. This lens is featured by: a first lens surface (R1) and a second lens surface (R2) both having a positive refracting power. At least one lens surface is formed by an aspherical surface. A distance L between the light emitting portion and the light receiving portion is 1.3129 mm<L<2.0129 mm. Lens thickness t at its center is 0.2147 mm<t<0.8822 mm; and 0.5<.vertline.f/.phi..vertline.<2.2632 where f=focal length of the lens, and .phi.=incident pupil diameter.

REFERENCES:
patent: 5452389 (1995-09-01), Tonai et al.

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