Abstract: The present disclosure generally relates to a dual free layer two dimensional magnetic recording read head. The read head comprises a first lower shield, a first sensor disposed over the first lower shield, a first upper shield disposed over the first sensor, a read separation gap (RSG) disposed on the first upper shield, a second lower shield disposed over the RSG, a second sensor disposed over the second lower shield, and a second upper shield disposed over the second sensor. In some embodiments, the second lower shield comprises a CoFeHf layer. In another embodiment, the second lower shield is a synthetic antiferromagnetic multilayer comprising a first shield layer, a second shield layer, and a CoFe/Ru/CoFe anti-ferromagnetic coupling layer or a Ru layer disposed therebetween, the first and second shield layers comprising NiFe and CoFe. In yet another embodiment, the second lower shield comprises layers of Ru, IrMn, and NiFe.

Abstract: The present disclosure generally relates to a dual free layer (DFL) read head and methods of forming thereof. In one embodiment, a method of forming a DFL read head comprises depositing a DFL sensor, defining a stripe height of the DFL sensor, depositing a rear bias (RB) adjacent to the DFL sensor, defining a track width of the DFL sensor and the RB, and depositing synthetic antiferromagnetic (SAF) soft bias (SB) side shields adjacent to the DFL sensor. In another embodiment, a method of forming a DFL read head comprises depositing a DFL sensor, defining a track width of the DFL sensor, depositing SAF SB side shields adjacent to the DFL sensor, defining a stripe height of the DFL sensor and the SAF SB side shield, depositing a RB adjacent to the DFL sensor and the SAF SB side shield, and defining a track width of the RB.

Abstract: Disclosed is a light emitting diode structure including a substrate, an LED chip and an adhesive material. The LED chip is installed on the substrate, and the adhesive material covers the LED chip to fix the LED chip. A light of the LED chip is emitted to the outside through the adhesive material to form a rectangular light pattern, so that when the light source is lit, a specific rectangular illumination light pattern is formed.

Abstract: Disclosed is a primary optics light source with a rectangular light pattern including a substrate, an LED chip and an encapsulated package. The LED chip is installed on the substrate, and the encapsulated package covers the LED chip to fix the LED chip. A light of the LED chip is emitted to the outside through the encapsulated package to form a rectangular light pattern, so that when the light source is lit, a specific rectangular illumination light pattern is formed.

Abstract: Disclosed is a primary optics light source with a rectangular light pattern including a substrate, an LED chip and an encapsulated package. The LED chip is installed on the substrate, and the encapsulated package covers the LED chip to fix the LED chip. A light of the LED chip is emitted to the outside through the encapsulated package to form a rectangular light pattern, so that when the light source is lit, a specific rectangular illumination light pattern is formed.

Abstract: A grid-based data clustering method is disclosed. A parameter setting step sets a grid parameter and a threshold parameter. A diving step divides a space having a plurality of data points according to the grid parameter. A categorizing step determines whether a number of the data points contained in each grid is larger than or equal to a value of the threshold parameter. The grid is categorized as a valid grid if the number of the data points contained therein is larger than or equal to the value of the threshold parameter, and the grid is categorized as an invalid grid if the number of the data points contained therein is smaller than the value of the threshold parameter. The clustering step retrieves one of the valid grids. If the retrieved valid grid is not yet clustered, the clustering step performs horizontal and vertical searching/merging operations on the valid grid.

Abstract: Light emitter components with improved light extraction and related methods are disclosed. In one embodiment, the light emitter component can include a submount, at least one light emitting chip disposed over the submount, and a lens disposed over a portion of the light emitting chip. The lens can include an optical element. The optical element can be configured to affect light output from the at least one light emitting chip.

Abstract: A grid-based data clustering method is disclosed. A parameter setting step sets a grid parameter and a threshold parameter. A diving step divides a space having a plurality of data points according to the grid parameter. A categorizing step determines whether a number of the data points contained in each grid is larger than or equal to a value of the threshold parameter. The grid is categorized as a valid grid if the number of the data points contained therein is larger than or equal to the value of the threshold parameter, and the grid is categorized as an invalid grid if the number of the data points contained therein is smaller than the value of the threshold parameter. The clustering step retrieves one of the valid grids. If the retrieved valid grid is not yet clustered, the clustering step performs horizontal and vertical searching/merging operations on the valid grid.

Abstract: A flashlight has a handle assembly and a lens cover. The handle assembly has a housing, a heat sink and en electrical unit. The housing has a front end. The heat sink is mounted in the housing and has a front end and a rear end. The electrical unit is mounted in the housing and detachably mounted on the rear end of the heat sink. The lens cover is securely mounted on the front end of the housing and has an LED element mounted securely on the heat sink. The lens cover has an LED electrically connected with the electrical unit with wires. Because the LED element and the electrical unit are separated by the heat sink, heat generated from the LED can be dissipated though the heat sink, instead of being directly conducted to the electrical unit and damaging the electrical unit.

Abstract: A flashlight has a handle assembly and a lens cover. The handle assembly has a housing, a heat sink and en electrical unit. The housing has a front end. The heat sink is mounted in the housing and has a front end and a rear end. The electrical unit is mounted in the housing and detachably mounted on the rear end of the heat sink. The lens cover is securely mounted on the front end of the housing and has an LED element mounted securely on the heat sink. The lens cover has an LED electrically connected with the electrical unit with wires. Because the LED element and the electrical unit are separated by the heat sink, heat generated from the LED can be dissipated though the heat sink, instead of being directly conducted to the electrical unit and damaging the electrical unit.