The present disclosure relates to adhesives useful in preventing drifting during lamination of light redirecting films applied to photovoltaic cells. The adhesives of the present disclosure have other useful applications in bonding and/or affixing other solar energy components.

An optoelectronic sensor (10) is provided for the detection of objects in a monitored zone (20) that has a light transmitter (12) for transmitting transmitted light (16), a laser scanner (26) for generating a received signal from received light (22) from the monitored zone (20), a movable deflection unit (18) for the periodic deflection of the transmitted light (16) and of the received light (22), a control and evaluation unit (32) for the detection of information on objects in the monitored zone (20) using the received signal, and an optical deflection element (18, 40), in the optical path of the received light (22), In this respect, the deflection element (18, 40) has temperature dependent beam shaping properties.

Methods, apparatuses and systems for providing optical coatings for optical components are disclosed herein. An example optical component may comprise an optical coating, the optical coating having a visible light reflective layer disposed adjacent a surface of the optical component; at least a first non-visible light reflective layer disposed adjacent the visible light reflective layer; and at least a second non-visible light reflective layer disposed adjacent the first non-visible light reflective layer.

An optically variable security element is provided for protecting objects of value. The reflective area region includes two independent relief structures, which are arranged at different levels in the z-direction and form a lower-level relief structure and a higher-level relief structure. The higher-level relief structure is supplied with a first reflection-enhancing coating following the relief profile, and the lower-level relief structure is supplied with a second reflection-enhancing coating following the relief profile. The first reflection-enhancing coating is formed in the visible spectral range with a reflection and transmission in the visible spectral range, so that the higher-level relief structure shows a first optically variable effect in a first color, and the lower-level relief structure shows a second optically variable effect through the first reflection-enhancing coating, wherein the second optically variable effect shows itself in a second, different color.

A main object of the present disclosure is to provide a reflection-type optical encoder scale capable of sufficiently reducing the reflectance on a low reflection region. The present disclosure achieves the object by providing a reflection-type optical encoder scale comprising a high reflection region and a low reflection region alternately placed on a substrate, wherein the low reflection region includes a low reflection portion including a metallic chromium film formed on the substrate, and a chromium oxide film and a chromium nitride film randomly formed on the metallic chromium film; and the high reflection region has higher reflectance of incident light from opposite side to the substrate of the reflection-type optical encoder scale, than the low reflection region.

A 3D-printed reflective optic providing very high specific stiffness through the utilization of a hollow shelled design, with closed back, filled with high-stiffness internal volumetric space-filling open-cell lattice structures. High-stiffness, structurally-integrated, sacrificial structures are also included for the purposes of reduction or elimination of tooling during post-processing operations.

The present disclosure relates to a decoration element comprising a light reflective layer; a light absorbing layer provided on the light reflective layer; and a color developing layer comprising a color film provided on a surface opposite to the surface facing the light absorbing layer of the light reflective layer, between the light reflective layer and the light absorbing layer, or on a surface opposite to the surface facing the light reflective layer of the light absorbing layer.

An optical system for displaying a magnified virtual image of an image emitted by a display to a viewer. The optical system includes first and second lenses facing each other and spaced apart by an air gap to define an optical cavity therebetween. The optical cavity includes a reflective polarizer disposed on a major surface of the first lens, and an optical stack disposed on a major surface of the second lens. The optical stack includes an absorbing polarizer, a first retarder layer, a partial reflector, and a second retarder layer disposed between the absorbing polarizer and the partial reflector. The first and/or second lenses is/are birefringent lens provided outside the optical cavity to control polarization.

A multilayered structure includes a plurality of laminated portions arranged on a base material, wherein the laminated portions each include a resin layer, a glass layer, laminated over the resin layer via an adhesive laver, and a metal layer formed on a surface of the glass layer, the surface being oriented toward the adhesive layer, wherein a thickness of the glass layer is 10 μm or more and 300 μm or less, and a thickness of the resin layer is 10 μm or more and 1000 μm or less.

A secondary reflector for receiving light from a plurality of primary reflectors that includes a reflecting surface having a length aligned along a first axis (z), where a cross-section of the reflecting surface in a plane perpendicular to the first axis (z) forms a curve comprising a concave section positioned between a first endpoint and a second endpoint, at least a portion of the concave section is accurately approximated by a polynomial equation, an aperture is formed by a straight line connecting the first endpoint to the second endpoint, and the concave section is configured to focus a plurality of beams of light passing through the aperture onto a focal point.