Abstract: A lens assembly for display includes a display, a lens assembly, and a prism assembly. The display emits a first light beam. The prism assembly includes a first, second prisms, and an optical multilayer film, wherein the first prism includes a first, second, and third surfaces; the second prism includes a fourth, fifth, sixth, seventh, and eighth surfaces; and the optical multilayer film is disposed between the third and fifth surfaces. A second light beam enters the first prism through the first surface and exits by the second surface. The first light beam exits the lens assembly and enters the second prism through the eighth surface, and exits the first prism by the second surface. The lens assembly and the prism assembly satisfy: 0.80%?E1/E0?0.95%; wherein E0 is an energy of the first light beam emitted from the display and E1 is an energy of the first light beam passes through the lens assembly.

Abstract: A range finder includes a prism module and a prism adjusting mechanism. The prism module includes a fixing prism group and a movable prism group, wherein the fixing prism group is adjacent to the movable prism group. The prism adjusting mechanism includes a first adjusting group and a second adjusting group, wherein the first adjusting group includes a first adjusting member and a second adjusting member, and the second adjusting group includes a third adjusting member. The first adjusting member or the second adjusting member is rotated to axially move so that the movable prism group is rotated with respect to the fixing prism group about a first axis, the third adjusting member is rotated to axially move so that the movable prism group is rotated with respect to the fixing prism group about a second axis, and the first axis is perpendicular to the second axis.

Abstract: A connecting device adapted to connect a first wall and a second wall of a furniture piece is disclosed. The connecting device includes a base portion and at least one engaging arm. The base portion is connected to the first wall of the furniture piece. The at least one engaging arm is arranged at the base portion. The at least one engaging arm is resiliently movable around a hypothetical axis. The at least one engaging arm is arranged with an engaging portion. The hypothetical axis is substantially parallel to the first wall. The second wall of the furniture piece is mountable to the engaging portion along a mounting direction via a mounting portion. The mounting direction is substantially perpendicular to the hypothetical axis.

Abstract: A connecting device adapted to connect a first wall and a second wall of a furniture piece is disclosed. The connecting device includes a base portion and at least one engaging arm. The base portion is connected to the first wall of the furniture piece. The at least one engaging arm is arranged at the base portion. The at least one engaging arm is resiliently movable around a hypothetical axis. The at least one engaging arm is arranged with an engaging portion. The hypothetical axis is substantially parallel to the first wall. The second wall of the furniture piece is mountable to the engaging portion along a mounting direction via a mounting portion. The mounting direction is substantially perpendicular to the hypothetical axis.

Abstract: An optical lens assembly includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens, all of which are arranged in order from an object side to an image side along an optical axis. The first lens is a meniscus lens with positive refractive power. The second lens is with positive refractive power. The third lens is with negative refractive power. The fourth lens is with positive refractive power and includes a convex surface facing the image side. The fifth lens is with negative refractive power and includes a concave surface facing the object side. The sixth lens is with positive refractive power and includes a convex surface facing the image side.

Abstract: A prism and light transmitter module includes a prism holder, a light transmitter, a prism module, a drive circuit board, a shield, and a fixing assembly. The light transmitter is configured to emit or receive a light beam along a light axis. The prism module includes an inclined plane and is disposed within the prism holder with the inclined plane exposed. The drive circuit board is disposed above the inclined plane, and intersects with the light axis at a first angle. The shield is disposed on the drive circuit board. The fixing assembly connects to the prism holder, is configured to fix the drive circuit board, and includes a hole through which the light transmitter is exposed. A binocular capable of measuring distance includes a first optical system and a second optical system. The first optical system or/and the second optical system include the prism and light transmitter module.

Abstract: A range finder includes an image capturing module, a transceiver module, a switching module, an output device and a processing unit. The image capturing module is configured to receive a first light beam emitted by an object. The transceiver module is configured to emit a second light beam to the object and receive the second light beam reflected by the object for obtaining a distance between the range finder and the object. The switching module is configured to output an electrical signal corresponding to a selected operating mode selected from a plurality of operating modes. The output device is configured to show the selected operating mode corresponding to the electrical signal. The processing unit is connected to the image capturing module, the transceiver module and the output device for receiving the electrical signal and controlling the image capturing module, the transceiver module and the output device.

Abstract: A base oil includes an ester compound obtained by reacting a fatty acid component and a monohydric alcohol component. The fatty acid component includes a C4-C28 fatty acid. The monohydric alcohol component includes at least one C4-C22 straight chain monohydric alcohol and at least one C4-C22 branched chain monohydric alcohol. A lubricant oil composition including the base oil is also disclosed.

Abstract: An adjustment mechanism includes a first component, a second component, an adjusting element, and a structure. The adjusting element is arranged on the first component. The structure is arranged on the second component. The adjusting element and the structure include a first feature and a second feature respectively, wherein the first and the second features correspond to each other. When the adjusting element is operated, the first feature and the second feature work with each other to longitudinally displace, and thereby adjust, the second component and the first component with respect to each other.

Abstract: A slide rail assembly is applicable to a furniture system. The slide rail assembly includes a first rail, a second rail, a blocking structure and an adjusting device. The second rail is longitudinally movable relative to the first rail. The blocking structure is arranged on one of the first rail and the second rail. The adjusting device is arranged on the other one of the first rail and the second rail. The adjusting device includes a working member and an adjusting member. The adjusting member is configured to adjust the working member to be located at different positions. Wherein, the working member is configured to abut against the blocking structure at different positions to allow the second rail to be located at different longitudinal positions when the second rail is retracted relative to the first rail.

Abstract: An adjustment mechanism includes a first component, a second component, an adjusting element, and a structure. The adjusting element is arranged on the first component. The structure is arranged on the second component. The adjusting element and the structure include a first feature and a second feature respectively, wherein the first and the second features correspond to each other. When the adjusting element is operated, the first feature and the second feature work with each other to longitudinally displace, and thereby adjust, the second component and the first component with respect to each other.

Abstract: A prism module includes a first prism including a first surface, a second surface and a third surface, a roof prism including a roof surface and a fourth surface, a second prism including a fifth surface, a sixth surface and a seventh surface, and a third prism including a light access surface, a first reflecting surface and a second reflecting surface. A light source is disposed above the second prism and adjacent to the first and the roof prisms. A light beam emitted by the light source enters and is reflected by the third prism, enters the second prism through the seventh surface, passes through the sixth surface, enters the first prism through the third surface, and is reflected by the second surface to leave the prism module. The light beam leaving the prism module is parallel to a baseline passing through the first, the second and the fourth surfaces.

Abstract: A range finder includes a laser transmitter, a laser receiver, a large-aperture objective lens unit, an image sensing device, a display device and a microphone. The laser transmitter is configured to emit a laser beam to a measured object. The laser receiver is configured to receive a reflected laser beam reflected by the measured object. The objective lens unit is configured to allow visible light reflected by the measured object to pass therethrough, includes an objective lens and a focusing lens and has a length defined by the objective lens and the focusing lens. The image sensing device is configured to receive the visible light passing through the objective lens and generate an image signal. The length is constant when the objective lens unit is moved with respect to the image sensing device for focusing operation.

Abstract: An auxiliary oil pump system for a gearbox, comprising: an auxiliary battery; a controller electrically connected to the auxiliary battery; and an auxiliary oil pump driven by the controller using a self-adaptive process, wherein the self-adaptive process comprises: the controller receives current operational pressure signal and compared the current operational pressure signal to a pressure threshold; if the current operational pressure signal is bigger than the pressure threshold, the auxiliary oil pump keeps current rotational speed; if the current operational pressure signal is smaller than the pressure threshold, the auxiliary oil pump improves the rotational speed by a pre-determined speed.

Abstract: An adjustment mechanism includes an adjustment device. The adjustment device includes a first component, a second component, and an adjusting element. The first component includes a first feature. The adjusting element is arranged on the second component and includes a second feature. When the adjusting element is operated, the first feature and the second feature work with each other to longitudinally displace, and thereby adjust, the second component and the first component with respect to each other.

Abstract: A slide rail assembly is applicable to a furniture system. The slide rail assembly includes a first rail, a second rail, a blocking structure and an adjusting device. The second rail is longitudinally movable relative to the first rail. The blocking structure is arranged on one of the first rail and the second rail. The adjusting device is arranged on the other one of the first rail and the second rail. The adjusting device includes a working member and an adjusting member. The adjusting member is configured to adjust the working member to be located at different positions. Wherein, the working member is configured to abut against the blocking structure at different positions to allow the second rail to be located at different longitudinal positions when the second rail is retracted relative to the first rail.

Abstract: A surface cleaning apparatus includes a base unit configured to be moved over a surface to be cleaned, an upper unit coupled with the base unit, and a handle coupled with the upper unit and moveable between a folded position and an upright position.

Abstract: An ester-based lubricating oil for use in a rotary screw compressor utilizing a chlorine-free hydrofluorocarbon (HFC) refrigerant such as R-134a contains a product obtained from a reaction of tripentaerythritol and a mixed C5-C10 monocarboxylic acid, or a product obtained from a reaction of dipentaerythritol and a mixed C5-C10 monocarboxylic acid, and optionally a product obtained from a reaction of dipentaerythritol and a C5 monocarboxylic acid.

Abstract: A binoculars rangefinder includes a central shaft, two eyepieces, two objective lenses, two prism modules, an optical transmitter, and an optical receiver. The eyepieces are disposed on two sides of the central shaft, allowing a first light beam reflected by an object to pass therethrough. The objective lenses are disposed on the two sides of the central shaft. The prism modules are disposed between the eyepieces and objective lenses. The optical transmitter is configured to emit a second light beam to the object. The optical receiver is configured to receive the second beam which is reflected by the object.

Abstract: In some examples, a fulfillment service may receive a purchase order for delivery of one or more items. In response, the fulfillment service may determine an initial risk score representing a first probability that the purchase order is a potentially fraudulent transaction. In addition, the fulfillment service may request fulfillment of the purchase order based on the initial risk score being below a predetermined threshold. During fulfillment of the purchase order, the fulfillment service may monitor one or more attributes associated with the purchase order. Further, the fulfillment service may determine a revised risk score based on monitoring the one or more attributes. In some cases, the fulfillment service may cancel fulfillment of the purchase order based at least in part on the revised risk score.