Abstract: A lithium battery system is provided. The lithium battery system comprises a battery pack, a battery management module, and a cooling control module. The battery pack comprises a first battery module and a second battery module having different battery characteristics. The battery management module is electrically connected to the battery pack, and configured to control an operating condition of the battery pack according to the battery characteristics of the first battery module and the second battery module. The cooling control module is electrically connected to the battery management module and the battery pack, and configured to cool the battery pack according to an instruction of the battery management module. The application combines a variety of lithium batteries with different performances to obtain a lithium battery system with excellent comprehensive performance.

Abstract: An environment monitoring device includes a sensing unit, a communication unit, a processor, and a storage unit. The sensing unit includes a number of sensors for sensing environmental parameters in real time. The storage unit stores preset standard values of the environmental parameters. The processor is configured to acquire the environmental parameter data sensed by the sensors and transmit the environmental parameter data to the storage unit or transmit these data to terminal device by means of the communication unit, fit a trend line on a graph according to the acquired environmental parameter data, and determine whether the acquired environmental parameter data exceeds a preset standard value.

Abstract: A gas cylinder lease system is disclosed, comprising one or more lease equipments and a cloud server equipment, wherein the inside of the lease equipment is installed with at least one placement rack area for accommodating the gas cylinder; accordingly, after any one of the lease equipments has been rented and at least one gas cylinder has been taken out, the renter may subsequently return the used gas cylinder to the lease main rack located at the same or different locations, with the use status of each placement rack area being uploaded to the cloud server equipment in real-time thereby monitoring the operation status of each lease equipment and executing corresponding replenishment and maintenance tasks in a timely fashion.

Abstract: A laser light source device for a laser projection system effectively emitting non-polarized light comprises a laser diode light source array and a collimation lens array. The laser diode light source array comprises N number of laser diodes in a matrix and the collimation lens array comprises a plurality of collimation lenses. Each of the plurality of collimation lenses corresponds to one laser diode of the N number of laser diodes. An outer shell of each laser diode defines a position portion marking a certain orientation, and a gradual angle of polarization is defined and progresses through the N number of laser diodes by reference to the position portion. A predetermined angle difference is applied to each laser diode in the matrix to set the orientation of polarization and substantially achieve a non-polarized light source.

Abstract: A color temperature adjusting system includes a processing device, a color analyzing device or probe, and a monitor. The processing device communicates with the monitor and the color analyzing device. The color analyzing device obtains a color temperature value and a color coordinate value of the monitor, and transmits these read values to the processing device, which compares these values to standard ranges and tolerances. The processing device can send commands to the monitor to adjust RGB levels until the read values are within standard ranges.

Abstract: A laser light source device for a laser projection system effectively emitting non-polarized light comprises a laser diode light source array and a collimation lens array. The laser diode light source array comprises N number of laser diodes in a matrix and the collimation lens array comprises a plurality of collimation lenses. Each of the plurality of collimation lenses corresponds to one laser diode of the N number of laser diodes. An outer shell of each laser diode defines a position portion marking a certain orientation, and a gradual angle of polarization is defined and progresses through the N number of laser diodes by reference to the position portion. A predetermined angle difference is applied to each laser diode in the matrix to set the orientation of polarization and substantially achieve a non-polarized light source.

Abstract: A projection system includes a laser light source module, at least one display module, and a projection lens. The laser light source module includes at least one light source, at least one wavelength conversion element, at least one light detecting unit, and a controller. The laser light source emits a first light beam with a first wavelength. The wavelength conversion element is used for converting the first light beam into a light beam with a wavelength different from the first wavelength. After an optical energy of the light beam outputted from the wavelength conversion element and higher than a systematic etendue is detected by an optical sensor of the laser light source module, at least one of a brightness and a light color of the laser light source module is adjusted or compensated by the controller according to the detecting result.

Abstract: A light guide element, a light source module, and a display are provided. The display includes a display panel and the light source module. The light source module includes a light source and the light guide element, wherein light emitted by the light source is guided toward the display panel by the light guide element. The light guide element includes a plurality sidewalls and a bottom wall. The sidewalls surround the bottom wall and are connected with each other to form a light entering opening, a light exiting opening, and an inner reflection room. Each of the sidewalls and the bottom wall has at least one reflection surface, wherein the reflection surface faces the inner reflection room.

Abstract: A light guide element, a light source module, and a display are provided. The display includes a display panel and the light source module. The light source module includes a light source and the light guide element, wherein light emitted by the light source is guided toward the display panel by the light guide element. The light guide element includes a plurality sidewalls and a bottom wall. The sidewalls surround the bottom wall and are connected with each other to form a light entering opening, a light exiting opening, and an inner reflection room. Each of the sidewalls and the bottom wall has at least one reflection surface, wherein the reflection surface faces the inner reflection room.

Abstract: A light-concentrating panel is disclosed. The light-concentrating panel comprises a planar light collecting element and a linear light collecting element. The planar light collecting element receives and collects the planar light, and then emits out as linear light. The linear light collecting element receives the linear light. The linear light from the planar collecting element enters the linear light collecting element by passing a planar-linear imaginary plane, which is located between the planar light collecting element and the linear light collecting element. The linear light from the planar collecting element are collected and turned into the spot light by the linear light collecting element.

Abstract: A light-concentrating panel is disclosed. The light-concentrating panel comprises a planar light collecting element and a linear light collecting element. The planar light collecting element receives and collects the planar light, and then emits out as linear light. The linear light collecting element receives the linear light. The linear light from the planar collecting element enters the linear light collecting element by passing a planar-linear imaginary plane, which is located between the planar light collecting element and the linear light collecting element. The linear light from the planar collecting element are collected and turned into the spot light by the linear light collecting element.