Abstract: The present disclosure provides a fire door lock mechanism. A handlebar is coupled to one end of an actuator whose the other end is connected with a push rod. A lock bolt is rotatably mounted in a lock cover mount which accommodates a glide mount used to drive the push rod to move horizontally. When the actuator receives a depression force from the handlebar, the actuator is driven to rotate and induces the push rod to move horizontally. By the movement from the push rod, the lock bolt is driven to rotate to engage or disengage the lock mechanism. A partition and a fire piece are coupled to the glide mount. The fire piece melts at a high temperature during a fire, making the partition moved by a force from an elastic member connected thereto and cause the lock bolt to be engaged with the partition and maintained in a locked state.

Abstract: An embodiment photonic device may include a first terminal including silicon and a second terminal including polysilicon. The first terminal may be configured as a first three-dimensional structure extending along a first direction and having a first U-shaped portion in a first cross-sectional plane perpendicular to the first direction. Similarly, the second terminal may be configured as a second three-dimensional structure extending along the first direction and having a second U-shaped portion in the first cross-sectional plane. The photonic device may further include a capacitor dielectric layer disposed between the first terminal and the second terminal and a cladding dielectric layer surrounding the first terminal and the second terminal. The first U-shaped portion and the second U-shaped portion may be arranged in an interlocking configuration having an overlapping region that is configured as an optical transmission line in which the first direction is an optical propagation direction.

Abstract: An optical device and method of manufacture is presented. In embodiments a method includes forming a first layer of optical material, patterning the first layer into a stair-step pattern, depositing a dielectric material onto the stair-step pattern, and forming a second layer of optical material over the dielectric material and at least partially within the stair-step pattern.

Abstract: An optical device and methods of manufacturing such optical devices are presented. In embodiments the optical device is a tunable beam splitter which is made by forming a first dopant region over a substrate, the first dopant region comprising a first waveguide and a second waveguide, depositing a cladding material over the first waveguide and the second waveguide, and forming a second dopant region overlying the first waveguide and the second waveguide, wherein the forming the second dopant region comprises forming a first region extending over both the first waveguide and the second waveguide, the first region having a constant concentration of a first dopant.

Abstract: The present disclosure provides a fire door lock mechanism. A handlebar is coupled to one end of an actuator whose the other end is connected with a push rod. A lock bolt is rotatably mounted in a lock cover mount which accommodates a glide mount used to drive the push rod to move horizontally. When the actuator receives a depression force from the handlebar, the actuator is driven to rotate and induces the push rod to move horizontally. By the movement from the push rod, the lock bolt is driven to rotate to engage or disengage the lock mechanism. A partition and a fire piece are coupled to the glide mount. The fire piece melts at a high temperature during a fire, making the partition moved by a force from an elastic member connected thereto and cause the lock bolt to be engaged with the partition and maintained in a locked state.

Abstract: An information handling system includes a battery and a charger. The battery provides a battery voltage to a main power rail of the information handling system and is couplable to the main power rail through a switch. The charger has an output coupled to the main power rail and an input coupled to an external power adapter. The power adapter provides a selectable voltage level to the input. The information handling system selects a particular voltage level that is lower than the battery voltage and directs the switch to decouple the battery from the main power rail when the information handling system is in a soft power-off state.

Abstract: A drive head for a power rotary tool including a main body and a rotation mechanism is provided. The main body includes a driving member including a first inner annular toothed portion, and a second inner annular toothed portion. The driving member includes a rotatable base, a control member, a first pawl and a second pawl. The first and second pawls are rotatably connected to the rotatable base. A first elastic member and a second elastic member are mounted to the control member. The first elastic member biases the first pawl to engage with the first inner annular toothed portion. The second elastic member biases the second pawl to engage with the second inner annular toothed portion.

Abstract: A mobile device display stand structure includes: a shaft driven and rotated by applying a critical moment greater than a resistance of the shaft to overcome the resistance of the shaft; and a first lever and a second lever connected to the shaft separately. The first lever and the second lever use the shaft as a fulcrum and flip over relative to each other by the shaft to define an included angle, and the first lever and the second lever are plate-shaped bodies. When the included angle is 0-180 degrees, the gravity of the first lever generates a first moment relative to the shaft or the gravity of the second lever generates a second moment smaller than the critical moment relative to the shaft, such that the first lever or the second lever cannot be rotated relative to the shaft and the included angle is kept constant.

Abstract: A door lock device is provided and includes: a lock assembly having a first lock structure and a second lock structure; an acting assembly interlocked with the first lock structure and the second lock structure; and an operation assembly interlocked with the acting assembly so as to unlock the first lock structure and the second lock structure synchronously. Therefore, when the lock assembly is in the form of top and bottom locks, the top and bottom locks can be unlocked at the same time, so as to allow an escape door to be opened quickly, thereby facilitating emergency escape.

Abstract: An information handling system includes a battery and a charger. The battery provides a battery voltage to a main power rail of the information handling system and is couplable to the main power rail through a switch. The charger has an output coupled to the main power rail and an input coupled to an external power adapter. The power adapter provides a selectable voltage level to the input. The information handling system selects a particular voltage level that is lower than the battery voltage and directs the switch to decouple the battery from the main power rail when the information handling system is in a soft power-off state.

Abstract: A computer screen filter includes an optical layer for changing the optical characteristic of a light emitted from a computer screen and a bonding mechanism layer, locally disposed on at least three sides of the optical layer. The optical layer is substantially in a rectangular shape and has two sides, and the bonding mechanism layer is disposed on a side of the optical layer, and the computer screen filter is only connected to a side of the computer screen by the bonding mechanism layer in a non-permanent fixation manner.

Abstract: The present disclosure relates to a virtual reality display device. The virtual reality display device includes: a main lens, a semi-reflective lens, a first display screen, a second display screen, a zoom assembly and an eye tracking camera. The main lens is arranged in front of the first display screen and perpendicular to a first direction. The semi-reflective lens is arranged between the main lens and the first display screen. The eye tracking camera points to an eyeball position. The second display screen faces the semi-reflective lens, and light emitted from the second display screen is reflected by the semi-reflective lens and then propagates along the first direction. The zoom assembly is arranged on a front side of the second display screen. The second display screen is configured to display an image based on an eyeball focus position detected by the eye tracking camera.

Abstract: A door lock device is provided and includes: a housing, an acting assembly arranged in the housing and having a lock tongue, an operating assembly arranged in the housing and interlocked with an outdoor handle, and a regulating assembly arranged in the housing for a user to regulate the operating assembly into an interlocking state or an idle state. As such, in the interlocking state, the outdoor handle drives the acting assembly through the operating assembly to cause the lock tongue to extend or retract relative to the housing, and in the idle state, the operating assembly cannot drive the acting assembly and the outdoor handle cannot be interlocked with the lock tongue.

Abstract: A lock assembly is provided and includes: a driving member; an acting member connected to the driving member; an active member cooperating with the acting member for operation; and a main lock member interlocked with the active member. The driving member drives the acting member to swing and the acting member touches the active member so as to displace the active member and synchronously displace the main lock member. Therefore, the lock assembly is buried in a door frame through cooperation of the driving member, the acting member and the active member, so as to be protected from being damaged or stolen.

Abstract: The present disclosure relates to a virtual reality display device. The virtual reality display device includes: a main lens, a semi-reflective lens, a first display screen, a second display screen, a zoom assembly and an eye tracking camera. The main lens is arranged in front of the first display screen and perpendicular to a first direction. The semi-reflective lens is arranged between the main lens and the first display screen. The eye tracking camera points to an eyeball position. The second display screen faces the semi-reflective lens, and light emitted from the second display screen is reflected by the semi-reflective lens and then propagates along the first direction. The zoom assembly is arranged on a front side of the second display screen. The second display screen is configured to display an image based on an eyeball focus position detected by the eye tracking camera.

Abstract: A door lock device for emergency doors is provided, in which, through a configuration of a sensing component, the actuating time can be adjusted by a driver according to demands to facilitate time-delayed unlocking.