98 results about "Ember" patented technology

A light guide plate comprises: a plate ember having a light transmitting capability; and a light incidence face provided on a side surface of the plate member; wherein the plate member changes a path of light emitted from a light source arranged to face the light incidence face and emits planar illumination light from an upper surface of the plate member onto an object to be illuminated; wherein an undulated surface portion is formed on the light incidence face. Further, the undulated surface portion is formed by smoothly connecting curved recessed portions and curved raised portions. This arrangement prevents bright lines from being produced near the light source and also prevents brightness variations, thus making uniform an intensity distribution of light that has entered the light guide plate.

An artificial fireplace for simulating flaming logs has a housing containing a solid state light source, a rotating flame simulation assembly, a viewing screen, and a simulated fuel source. The solid state light source preferably comprises light emitting diodes (LEDs) affixed to a printed circuit board. The light produced by the LEDs reflects off of the rotating flame simulation assembly and an image of a flame is transmitted onto the viewing screen. This design creates a realistic, randomly-flickering flame image above the simulated fuel source. Optional features include a dimmer assembly to adjust the intensity of the image and a second light source to simulate smoldering embers within the simulated fuel source. This design eliminates the problems associated with using a light bulb for a light source by instead using LEDs with a longer life span which emit less undesirable heat and consume less electricity.

The present invention describes systems and methods which provide a moisture barrier that douses or diffuses buoyant burning debris, particularly hot embers, from a bush and / or brush fire (e.g., wildfires). By strategic placement of the devices and / or apparatus as disclosed, a method of preventing the destruction of dwellings and roof-containing structures by exploiting heat convection is provided.

This application relates to ventilation systems, more particularly to roof ventilation systems that help to protect buildings against fires. The roof vent has an ember impedance structure that impedes the entry of flames and embers or other floating burning materials while still permitting sufficient air flow to adequately ventilate a building. Several configurations of vents employing baffle members and fire-resistant mesh material are described, which can substantially prevent the ingress of floating embers and flames.

The invention relates to a flame imitation device for a wall-mounted heater. The flame imitation device comprises a light source, a combustion bed including imitated firewood and embers, and a vertical translucent screen located closely adjacent to the back edge of the combustion bed. The light source is located under the combustion bed. A glittering member is rotatably provided behind the translucent screen. The main body of the glittering member comprises a polyhedron with a polygonal cross section. A reflector is provided on the polyhedron. The glittering member is connected to a rotational driver. Light irradiated from the light source partially transmits upward onto the combustion bed for imitating firewood and embers. Light irradiated from the light source partially transmitted rearward to the glittering member positioned at the back portion of the heater, and reflects the light to the translucent screen. With the rotation of the glittering member, a dynamic flame image presents on the translucent screen. The structure and manufacturing process of the flame imitation device of the invention are simple. Moreover, the reflectors are arranged over the whole polyhedron which results in that the flame images produced by reflecting lights are continuous and the imitation effects are more vivid.