An apparatus includes an optical device that includes a substrate, a first layer of material over the substrate, and a second layer of material comprising an optical coating over the first layer of material. The first layer of material creates a first stress within the optical device that counteracts a second stress within the optical device created by the second layer of material. The optical device may also include a third layer of material positioned between the substrate and the first layer of material. In some cases, the second layer of material creates a compressive stress within the optical device, and the first layer of material creates a tensile stress within the optical device that counteracts the compressive stress within the optical device.

An optical element includes a conversion layer and a metal piece layer. The conversion layer is provided with a light-incidence surface including an uneven surface, the conversion layer being configured to receive light incident on the uneven surface and output the light from the uneven surface as light in a different state than the incident light. The metal piece layer is configured by a plurality of metal pieces to cover at least part of the uneven surface.

A radio frequency identification (RFID) enabled mirror includes a mirror comprising a reflective layer. The reflective layer comprises at least one layer of a metallic material. At least one portion of the reflective layer is removed to form a booster antenna from a remaining portion of the reflective layer. A dielectric coating is applied to the mirror where the reflective layer was removed. The RFID-enabled mirror further includes an RFID chip coupled to the booster antenna.

A method for producing a reflector element and a reflector element are disclosed. In an embodiment the method includes depositing a layer sequence on a substrate, wherein the layer sequence includes at least one mirror layer and at least one reactive multilayer system and igniting the reactive multilayer system in order to activate heat input in the layer sequence.

A display device including a backplane, a plurality of light-emitting devices, a first distributed Bragg reflector layer and a second distributed Bragg reflector layer is provided. The light-emitting devices are disposed on the backplane. The first distributed Bragg reflector layer is disposed between the backplane and the light-emitting devices. The light-emitting devices are disposed between the first distributed Bragg reflector layer and the second distributed Bragg reflector layer. A projected area of the first distributed Bragg reflector layer on the backplane is larger than a projected area of one of the light-emitting devices on the backplane or a projected area of the second distributed Bragg reflector layer on the backplane is larger than a projected area of one light-emitting device on the backplane.

A substrate has a first side and an opposing second side. The opposing second side has a first portion and a second portion. The substrate is at least partially transparent to visible light. A coating layer is disposed over the first portion but not the second portion of the opposing second side of the substrate. The second portion has an ablated surface including a hexagonal packed surface profile.

The present disclosure relates to a decoration element comprising a light reflective layer; and a light absorbing layer provided on the light reflective layer, wherein the light reflective layer is a discontinuous film.

A high-chroma omnidirectional structural color multilayer structure is provided. The structure includes a multilayer stack that has a core layer, a dielectric layer extending across the core layer, and an absorber layer extending across the dielectric layer. An interface is present between the dielectric layer and the absorber layer and a near-zero electric field for a first incident electromagnetic wavelength is present at this interface. In addition, a large electric field at a second incident electromagnetic wavelength is present at the interface. As such, the interface allows for high transmission of the first incident electromagnetic wavelength and high absorption of the second incident electromagnetic wavelength such that a narrow band of reflected light is produced by the multilayer stack.

A multilayer thin film that reflects an omnidirectional structural color having a reflective core layer, a Fe.sub.2O.sub.3 dielectric absorbing layer extending across the reflective core layer, a W semi-transparent absorbing layer extending across the dielectric absorbing layer, and an outer layer extending across the semi-transparent absorbing layer. The outer layer is formed from a dielectric material, wherein the multilayer thin film reflects a single narrow band of visible light when exposed to broadband electromagnetic radiation, the single narrow band of visible light having a hue between 0 and 120 in the Lab color space, a color shift of the single narrow band of visible light is less than 30 measured in Lab color space when the multilayer thin film is exposed to broadband electromagnetic radiation and viewed from angles between 0 and 45 relative to a direction normal to an outer surface of the multilayer thin film.

An immersive device may include reflective mirrored surfaces that form a perimeter of and bound a reflective chamber. Various geometric shapes of inner chamber such as platonic solids and objects of constant width are described that facilitate clusters of tessellations into infinite reflection unobtainable using other shapes. Specialized sizing and arrangements of the shapes allow for discrete full body observations of the tessellation clusters. One or more light emitting elements may be configured to emit light into the reflective chamber. A processing unit may be in electrical communication with the light emitting elements. A sound device may be in communication with the processing unit, and the sound device may be configured to output sound to a user within the reflective chamber. An array of sensors, such as: digital camera, microphone, and electrophysiological monitoring devices that may be in communication with the processing unit and are configured to change the experience of the user within the chamber depending upon the signals from the sensors on the user.