A light attenuator that provides transparent light states and absorbing dark states for use in selectively controlling light, especially for smart glass applications. The light attenuator includes abutting areas of attenuation and transparency that form a repeat pattern or a quasi-repeat pattern. The attenuating areas are visible when the light attenuator is in the light state, but the repeat pattern is sufficiently large that a viewer looks through the attenuator and sees no haze.

The present invention relates to a dual blind curtain installed at an indoor window, a wall surface, or the like and is used for purposes such as view blocking, light adjustment, heating, and indoor interior decoration effects, wherein: both opposite ends of a curtain sheet composed by connecting multiple patterns to each other are wound in roll shapes around two rotation shafts, respectively, and then curtain circulative rotation and curtain longitudinal rotation are allowed to be freely adjusted by the two rotation shafts; and a difference between the amounts of winding and unwinding of the curtain sheet around and from the rotation shafts, respectively, the difference being caused due to a change in the amount of winding of the curtain sheet around a corresponding shaft, can be identically maintained. Accordingly, the curtain sheet wound around the rotation shafts can be freely changed in patterns that a consumer wants.

Thin-film devices, for example, multi-zone electrochromic windows, and methods of manufacturing are described. In certain cases, a multi-zone electrochromic window comprises a monolithic EC device on a transparent substrate and two or more tinting zones, wherein the tinting zones are configured for independent operation.

A covering for an architectural covering is provided. The covering may include a multiple stage spring assembly. The spring assembly may include a non-rotatable first member, a first spring including a first end portion and a second end portion, and a second spring including a first end portion and a second end portion. The first end portion of the first spring may be coupled to the first member. The first end portion of the second spring may be coupled to the second end portion of the first spring to rotate with the second end portion of the first spring.

The present invention relates to a device for preventing bending of a lower rotary rod and wrinkling of fabric in double blind without a string. More specifically, while a lower case is moved downwardly by the force of a handle portion (250) being pulled, a pair of rollers and a lower rotary rod are rotated. The rollers having a smaller diameter than the lower rotary rod prevent the lower rotary rod from rising and at the same time offset the load while rotating in close contact with double fabric (240), and thus prevent bending of the lower rotary rod or wrinkling of the fabric.

A window film including at least a first adhesive layer containing a weathering agent, a barrier layer, a second adhesive layer, and a light control layer in this order.

The present disclosure relates to darkening filters 10, 10′ which are suitable for selectively darkening an optically transmissive window 20 for protection from light, in particular from high intensity light. The darkening filter 10, 10′ is mounted in a forward-facing optically transmissive window 20 and comprises a non-uniform pattern 30 of switchable shutters 32 capable of being switching to at least a dark state and a light state by a shutter control system 40. The present disclosure also relates to a method of operating such darkening filters 10, 10′. The present disclosure furthermore relates to vision-protective headgears 100, 100′, welding shields 110 and panes 120 comprising the darkening filters 10, 10′ according to the present disclosure.

The present invention is a window pane assembly system and method utilizing locking a locking system for easy insertion of a second window pane and an electro kinetic strip or film on these window panes. These electrokinetic strips and films have the capability to do many things on the window panes like changing the opacity of the windows and allowing certain levels of light through the window. The use of this technology can create more opportunities for creating advertisements on window surfaces, storing energy or repelling solar energy for building temperature management and energy savings. The electrokinetic film can be used with a remodel of window panes or the electrokinetic strips and films can be built into new window panes. With the ability of the electrokinetic devices to allow certain levels of light in, there is the opportunity for many more technological advancements on the window panes. The electrokinetic film may incorporate a matrix of densely packed apertures with scalable shutters, to attenuate light transmission through the window pane assembly.

Thin-film devices, for example, multi-zone electrochromic windows, and methods of manufacturing are described. In certain cases, a multi-zone electrochromic window comprises a monolithic EC device on a transparent substrate and two or more tinting zones, wherein the tinting zones are configured for independent operation.

Thin-film devices, for example, multi-zone electrochromic windows, and methods of manufacturing are described. In certain cases, a multi-zone electrochromic window comprises a monolithic EC device on a transparent substrate and two or more tinting zones, wherein the tinting zones are configured for independent operation.