Abstract: A method for making iridium oxide nanoparticles includes dissolving an iridium salt to obtain a salt-containing solution, mixing a complexing agent with the salt-containing solution to obtain a blend solution, and adding an oxidating agent to the blend solution to obtain a product mixture. A molar ratio of a complexing compound of the complexing agent to the iridium salt is controlled in a predetermined range so as to permit the product mixture to include iridium oxide nanoparticles.

Abstract: A fan includes a fan hub and multiple blades. At least one blade includes a blade body and two extended blade portions. The two extended blade portions are connected to a first edge and a second edge on the blade body. The first edge and the second edge are opposite to sides of the blade body. In a top view, at least one of the two extended blade portions has a first width that is adjacent to the fan hub, and a second width that is away from the fan hub. The second width is larger than the first width. The second width and the first width are connected by a continuous surface. The width of the continuous surface increases away from the first width.

Abstract: The illuminated sign includes a frame defining a space, a light emitting module received in the space and having a plurality of light emitting members disposed on a circuit substrate, an optical path conversion component provided on the frame to correspond to the light emitting members, and a light uniformizing component positioned a distance above the optical path conversion component. The space is compartmented to form a predetermined pattern, projecting a desired signal when the light emitting members in different compartments of the space are selectively illuminated.

Abstract: An indicating device includes a circuit substrate, a frame, a light emitting module, an optical path conversion component, and a light uniformizing component. The frame is disposed on the circuit substrate, wherein the frame has an accommodating space for forming a predetermined pattern. The light emitting module includes a plurality of light emitting members disposed dispersedly on the circuit substrate and received in the accommodating space. The optical path conversion component is disposed on the frame, wherein the optical path conversion component has a plurality of optical path conversion structures respectively corresponding to the light emitting members. The light uniformizing component is disposed above the optical path conversion component, and the light uniformizing component and the optical path conversion component are separated apart from each other to define a predetermined distance.

Abstract: A signal light includes a case, a light emitting unit, a light distribution cover, and a curved lens. The case includes a bottom case. The light emitting unit is located on the bottom case. The light distribution cover is connected to the case. The light distribution cover includes an inclined curved surface. The curved lens is located between the bottom case and the inclined curved surface.

Abstract: A light assembly is provided. The light assembly comprises at least one light bar. Each of the at least one light bar comprises at least one point light source and a lens. The lens is disposed over the point light source for directing the light emitted from the point light source along an extending direction of the light bar.

Abstract: An optical measuring apparatus comprising at least one light emitting unit, a stage, at least one lens, and at least one light detector is provided. The light emitting unit emits a light beam. The stage contains accommodating spaces. The accommodating spaces move to the transmission path of the light beam in turn. The lens is located between the light emitting unit and the stage, whose orthogonal projection on the stage appears substantially to be a polygon. When one of the accommodating spaces moves to the transmission path of the light beam, a perpendicular bisector half line of each side of the polygon is not overlapped with another adjacent accommodating space of the accommodating spaces. An optical measuring method is also provided.

Abstract: A traffic signal light device that includes a spread window, a Fresnel lens, and an LED module for emitting light. The light emitted by the LED module passes through the Fresnel lens and to the spread window. The LED module is disposed at a position that is offset from an axis of the spread window that passes through a center of, and is perpendicular to, the spread window. The Fresnel lens can have a saw-toothed pattern of teeth formed as concentric circles on one surface of the Fresnel lens sharing a common center, where the size or height of the teeth vary. The spread window can have a plurality of protruding cells of varying size on a surface of the spread window.

Abstract: An optical measuring apparatus comprising at least one light emitting unit, a stage, at least one lens, and at least one light detector is provided. The light emitting unit emits a light beam. The stage contains accommodating spaces. The accommodating spaces move to the transmission path of the light beam in turn. The lens is located between the light emitting unit and the stage, whose orthogonal projection on the stage appears substantially to be a polygon. When one of the accommodating spaces moves to the transmission path of the light beam, a perpendicular bisector half line of each side of the polygon is not overlapped with another adjacent accommodating space of the accommodating spaces. An optical measuring method is also provided.

Abstract: An LED lamp that includes a housing forming an open cavity, a plurality of LEDs configured to produce a light output disposed in the cavity, a lens disposed over the LEDs for focusing and/or diffusing the light output, and a redirection shield disposed in the cavity. The redirection shield includes a base plate with a plurality of apertures formed therein, and a plurality of shielding plates extending from a top surface of the base plate. The LEDs extend through the apertures. The shielding plates block a portion of the light output such that an overall light distribution of the light output from the LED lamp is asymmetric.

Abstract: An optical lens includes an array of lens units. Each lens unit includes a main body, a light diverging portion and a light converging portion. The main body includes a light incident surface and a light emitting surface opposite to the light incident surface. The light diverging portion is configured for expanding a light field along a first direction. The light converging portion is configured for compressing a light field along a second direction. The light diverging portion and the light converging portion are formed on at least one of the light incident surface and the light emitting surface. The light converging portion includes parallel recesses distributed along the second direction.

Abstract: An LED lamp that includes a housing forming an open cavity, a plurality of LEDs configured to produce a light output disposed in the cavity, a lens disposed over the LEDs for focusing and/or diffusing the light output, and a redirection shield disposed in the cavity. The redirection shield includes a base plate with a plurality of apertures formed therein, and a plurality of shielding plates extending from a top surface of the base plate. The LEDs extend through the apertures. The shielding plates block a portion of the light output such that an overall light distribution of the light output from the LED lamp is asymmetric.

Abstract: An illuminating device includes a light source module for emitting light and an optical lens configured for adjusting the light emitted from the light source module. The optical lens includes an array of lens units. Each lens unit includes a main body, a light diverging portion and a light converging portion. The main body includes a light incident surface and a light emitting surface opposite to the light incident surface. The light diverging portion is configured for expanding a light field along a first direction, and the light converging portion is configured for compressing a light field along a second direction. The light diverging portion and the light converging portion are formed on at least one of the light incident surface and the light emitting surface. The light diverging portion includes parallel protrusions distributed along the first direction.

Abstract: An exemplary illuminating device comprises a light source module, a light reflective module, a lens array and a light transmissive module. The lens array is for expanding a light field of the illuminating device along a first direction and compressing the light field of the illuminating device along a second direction. The light transmissive module comprises a first surface facing towards the lens array and a second surface opposite to the first surface. The second surface has a plurality of microstructures formed thereon thereby expanding the light field of the illuminating device along the first direction.

Abstract: An illuminating device includes a light source module for emitting light and an optical lens for adjusting the light. The light source module includes a reflecting unit and LEDs. The reflecting unit includes strip-shaped grooves each extending along a first direction. The LEDs are mounted on the reflecting unit in the grooves. The optical lens includes an array of lens units each including a main body, a light diverging portion and a light converging portion. The light diverging portion is for expanding a light field of the LEDs along the first direction. The light converging portion is for compressing the light field along a second direction. The reflecting unit is for further compressing the light field along the second direction.

Abstract: An illuminating device includes a housing, a light source module, and a plurality of replaceable optical elements. The light source module is positioned in the housing for emitting light having an initial illumination range. The optical elements are configured for respectively converting the initial illumination range into different outputting illumination ranges, each of the optical elements is selectively detachably mountable to the housing for achieving a desired illumination range.

Abstract: An optical lens (10) includes an array of lens units (11). Each lens unit includes a main body (101), a light diverging portion (112) and a light converging portion (114). The main body includes a light incident surface (110) and a light emitting surface (112) opposite to the light incident surface. The light diverging portion is used to expand a light field along an x-direction. The light converging portion is used to compress a light field along a y-direction. In specific embodiments, the light diverging portion and the light converging portion are respectively formed on the light incident surface and the light emitting surface.

Abstract: An optical lens includes an array of lens units. Each lens unit includes a main body, a light diverging portion and a light converging portion. The main body includes a light incident surface and a light emitting surface opposite to the light incident surface. The light diverging portion is configured for expanding a light field along a first direction, and the light converging portion is configured for compressing a light field along a second direction. The light diverging portion and the light converging portion are both formed on one of the light incident surface and the light emitting surface.

Abstract: An illuminating device includes a light source module for emitting light and an optical lens configured for adjusting the light emitted from the light source module. The optical lens includes an array of lens units. Each lens unit includes a main body, a light diverging portion and a light converging portion. The main body includes a light incident surface and a light emitting surface opposite to the light incident surface. The light diverging portion is configured for expanding a light field along a first direction, and the light converging portion is configured for compressing a light field along a second direction. The light diverging portion and the light converging portion are formed on at least one of the light incident surface and the light emitting surface. The light diverging portion includes parallel protrusions distributed along the first direction.

Abstract: An illuminating device includes a light source module for emitting light and an optical lens for adjusting the light. The light source module includes a reflecting unit and LEDs. The reflecting unit includes strip-shaped grooves each extending along a first direction. The LEDs are mounted on the reflecting unit in the grooves. The optical lens includes an array of lens units each including a main body, a light diverging portion and a light converging portion. The light diverging portion is for expanding a light field of the LEDs along the first direction. The light converging portion is for compressing the light field along a second direction. The reflecting unit is for further compressing the light field along the second direction.