An ophthalmic surgery apparatus provided observation optical system for observing anterior portion of an eye of a patient, and laser beam irradiating optical system for irradiating a laser beam for treatment to the eye of the patient, and also provided device for aligning the eye of the patient so as to be desired region and then irradiating a laser beam for treatment, comprises moving device for ...

Films having a thickness on the order of 10 mu m or smaller are effectively produced from a resin laminate (1) which has two major surfaces (1a,1b) and comprises a multiplicity of laminated layers of at least two resin species (A,B) including at least one resin species having a substantial solubility in a solvent and at least one resin species substantially insoluble in the solvent, the layers of...

A cover-forming laminated clear plastic film packaging material for at least one container, such as the base member of a blister package which is adapted to contain a hydrophilic contact lens in a sterile aqueous solution. More specifically, disclosed is a transparent or translucent laminated multi-layered plastic film material constituting a covering label for the container, incorporating a silic...

Verpackungsfolie bestehend aus a) einer Siegelschicht aus einer Mischung aus a1) 40 bis 80 Gew.% eines C2-C3-Randomcopolymeren mit einem C2-Gehalt von 1 - 15 Gew.% oder, a2) 40 bis 80 Gew.% einer Polymermischung, bestehend aus a2.1) 60 bis 98 Gew.% eines kristallinen Copolymeren aus Propylen mit Ethylen und /oder einem α-Olefin der allgemeinen Formel CH2=CHR, wobei R ein linearer oder verzweigter ...

Hermetically sealed packages for food, cigarettes and the like are formed from packaging material (37) having a tear tape (33) attached thereto. The tear tape includes a surface formed of a material (7) which flows under the conditions needed to seal portions (8,9) of the packaging material together when closing the package so as to fill any gaps between the tape and the packaging material portion...

Azeotropic or azeotrope-like compositions comprising admixtures of effective amounts of perfluoroethane and nitrous oxide, or carbon dioxide, or fluoromethane to form an azeotropic or azeotrope-like composition. Such compositions are used as cleaning agents, expansion agents for polyolefins and polyurethanes, refrigerants, aerosol propellants, heat transfer media, gaseous dielectrics, fire extingu...

Als Regelwendelmaterial, insbesondere für eine Flammglühkerze, wird eine Legierung der Formel (Co,Ni)a Feb Bec Cd (Mn,Si)e (Cr,Al,Ti,Nb,Mo,W,V,Cu)f mit in Gew.-% a = 71-99, b = 0-25, c = 1.0-2.0, d = 0-0.02, e = 0-1.0, f = 0-0.9, einschließlich üblicher Verunreinigungen verwendet wird, vorgeschlagen. Mit dieser Legierung läßt sich eine Regelwendel herstellen, die einerseits einen hohen positiven T...

There is described an antireflection surface having a predetermined roughness so as to keep the reflectivity of incident radiation low. A profile with projections having a height (h) which is an integer multiple of the radiation wavelength can trap the radiation irrespective from its polarization and also at large angles of incident light.

Die Erfindung betrifft die Schaffung eines optischen Modenfilters, d.h. eines optischen Bauelementes, in dem sich die Grundmode möglichst ungedämpft ausbreiten kann, in dem aber höhere Moden stark bedämpft werden. Ein optisches Modenfilter ist dadurch verwirklicht, daß bei einem integriert optischen Wellenleiter nahe dem Wellenleiterkern (3) ein höherbrechender oder absorbierender Werkstoff (4) an...

A semiconductor laser module(10) which couples a beam emitted from a semiconductor laser(11) with a core expanded fiber(14) having a single-mode fiber end whose core diameter is expanded, by a lens system having a first and a second lenses(12,13). The core expanded fiber(14) is set so as to have a core expansion coefficient of 1.3 or more and an absolute value of change rate of mode field diameter...

To make an overclad fiber optic coupler, the bare regions of a plurality of optical fibers are positioned within a glass capillary tube (28). The midregion of the tube (28) is then collapsed and stretched to cause coupling between the fibers. To obtain desirable coupling characteristics, the fibers must be situated in the glass tube bore (28) in side-by-side fashion such that the cross-sectional c...

The optical arrangement enables optical connection of optical fiber conductors (F) by alignment and abutment of extremities of these optical fiber conductors. It includes a first plate (P1) with a first extremity plane (P1E) and a second plate (P2) with a second extremity plane (P2E), at least parts of which are tangent when the optical connection is realized. The first and the second plate have a...

An automotive fiber optic cable connector for connecting first and second fiber optic cables (35) in an abutting connection is provided. The connector includes a casing (12) with first and second ends, the casing encircling the first and second fiber optic cables; first and second end caps (30) generally at the first and second ends of the casing; first and second ferrules (40) positioned within t...

The optical connector (C0) is mounted in one half of a closing structure. The connector is made up of a number of termination units (T) connected to fibre optic cables (f0). The rear of the termination has vertical members (4) which slot into box racks (150,160). The termination has an outer spring (6) ensuring good coupling takes place to the inserted plug. A coupling element (5) on the terminati...

An optics assembly for observing a panoramic scene comprises a plurality of optical elements. A flat reflective element redirects light from a panoramic scene. A plurality of refractive elements, successively receive the redirected light from the reflective element and create a real pupil. An optical relay system receives light from a last of the plurality of refractive elements. The optical relay...

In a thermal imaging unit including optics for detecting a target scene, a detector array (26) responsive to target scene energy and a scanner for scanning target scene energy from the target onto the detector array (26), an imager lens assembly (120) for focusing the target scene energy onto the detector array. The imager lens assembly includes entrance means (126) for passing the target scene en...

A zoom lens includes, in the order named from an object side, a first lens group having a positive refracting power and a second lens group having a negative refracting power, in which magnification change is conducted by changing a distance between said first and second lens groups. The first lens group has, in the order named from the object side, a 1a lens component having a negative refracting...

The light radiation beam emitted by a source (1) of finite dimension, integrated in a transparent plate (3) or in contact therewith, is initially reflected inside the plate (3) by a first surface (6) located on the side of the plate (3) which is more remote from the source (1). The reflected light rays pass through plate (3) and are again reflected by a second surface (8) having micro projections ...

A scanning optical apparatus includes a light source unit, a deflector for deflectively scanning a light beam from the light source unit, an optical box in which the deflector is accommodated and an optical system for focusing the light beam deflectively scanned by the deflector on a predetermined surface. The optical system is supported by the optical box and having upside-down prevention mechani...

It is possible to display enlarged images by arranging plural projectors having projecting parts (3) and screen parts (1) and projecting the images from said projecting parts on said screen parts. Each projector comprises a projecting part (3) for projecting the images, a screen part (1) for displaying the images projected from said projecting part to the front, and the screen part (1) is placed r...