A warm shield as part of a thermal imaging system comprising a reflecting surface having a convex curvature that when positioned relative to an opening of a thermal imaging system, thermal energy originating from the opening of the thermal imaging system incident on the convex curvature is reflected in a direction away from the opening of the thermal imaging system. An aperture can be formed in the reflecting surface and positioned to facilitate passage therethrough of external thermal energy in a direction towards a detector of the thermal imaging system, and passage of at least some of the thermal energy originating from within the thermal imaging system in a direction away from the thermal imaging system.

A fault detection device, adapted to an electronic device having a display screen, including a first warning unit, a second warning unit, a first sensor and a microprocessor. The first sensor is arranged in front of the display screen, and obtains and outputs a first current brightness value every first predetermined period of time. The microprocessor is coupled to the first warning unit, the second warning unit, and the first sensor, and compares the first current brightness value with a first previous brightness value. When the first current brightness value is equal to the first previous brightness value, the microprocessor enables the first warning unit to generate a first warning signal. When the first current brightness value is equal to the first previous brightness value for more than a second predetermined period of time, the microprocessor enables the second warning unit to generate a second warning signal.

A light sensor, for sensing an illumination of a partial area, includes a first case, a second case, a first light absorption layer and at least one sensing module. The first case includes at least one hole. The at least one hole includes an axis. The second case is fastened to the first case, and a containing space is formed between the first case and the second case. The first light absorption layer is located on the first case. The at least one sensing module is located in the containing space, and the position of the at least one sensing module is located on the axis of the hole. The at least one sensing module is used for sensing the light from the partial area which passes through the hole to obtain the illumination of the partial area.

Disclosed are optical devices and methods of manufacturing optical devices. An optical device can include a substrate; an optical emitter chip affixed to the front surface of the substrate; and an optical sensor chip affixed to the front surface of the substrate. The optical sensor chip can include a main sensor and a reference sensor. The optical device can include an opaque dam separating the main optical sensor and the reference sensor. The optical device can include a first transparent encapsulation block encapsulating the optical emitter chip and the reference optical sensor and a second transparent encapsulation block encapsulating the main optical sensor. The optical device can include an opaque encapsulation material encapsulating the first transparent encapsulation block and the second transparent encapsulation block with a first opening above the main optical sensor and a second opening above the optical emitter chip.

An aquarium photometer system includes a housing unit, an arm, and a mirror. The housing unit includes a light sensor configured to sense light incident on the light sensor and to convert the incident light to a signal. The housing unit also includes an operational amplifier including a first input node, a second input node, and an output node. The operational amplifier is configured to: receive the signal at the first input node, amplify a difference between the signal at the first input node and a signal at the second input node by a gain factor, and output the amplified signal on the output node. The housing unit also includes a potentiometer connected to the operational amplifier and configured to regulate the amplified signal; and a display connected to the potentiometer and configured to show an intensity of light detected by the light sensor based on the regulated amplified signal. The arm at a first end is connected to the housing unit and configured to move the housing unit around an aquarium case. The mirror is located on a bar and positioned within the aquarium in front of the light sensor and at a focal distance from the light sensor and configured to increase an amount of light incident on the light sensor.

Embodiments relate generally to systems and methods for optically detecting a flame. A system may comprise an optical flame detector, wherein the optical flame detector comprises a magnetometer, an accelerometer, and a gyroscope; and an information handling system, wherein the information handling system is configured to obtain orientation data from the magnetometer, the accelerometer, and the gyroscope; wherein the orientation data comprises movement and/or vibration data; angular velocity data; and direction data.

A device including: a processor being configured to: instruct an image sensor to capture first image data of a patch applied to a user's skin unprotected against an ultraviolent spectrum of radiation, the patch having a reflection coefficient in the ultraviolent spectrum; measure a first reflectance from the patch based on the reflection coefficient; determine a second reflectance from the unprotected skin adjacent to the patch based on the measured first reflectance; instruct the image sensor to capture second image data of the user's skin after application of a sunscreen; determine a third reflectance from the skin adjacent to the applied patch for the skin having the applied sunscreen based on the measured first reflectance; and determine a time extending factor for the applied sunscreen based on the second and third reflectance.

The optical module (1) comprisesa first member (O) having a first face (F1) which is substantially planar;a second member (P) having a second face (F2) facing the first face (F1), which is substantially planar and is aligned substantially parallel to the first face;a third member (S) comprised in the first member (O) or comprised in the second member (P) or distinct from and located between these, which comprises an opening (4);a mirror element (31; 31) present on the second face (F2); andan active optical component (26) present on the second face (F2) and electrically connected to the second member (P); wherein at least one of the first and second members comprises one or more transparent portions (t) through which light can pass. The method for manufacturing the optical module (1) comprises the steps of a) providing a first wafer; b) providing a second wafer on which the mirror elements (31. . . ) are present; c) providing a third wafer, wherein the third wafer is comprised in the first wafer or is comprised in the second wafer or is distinct from these, and wherein the third wafer comprises openings (4); e) forming a wafer stack comprising these wafers; wherein at least one of the first wafer and the second wafer comprises transparent portions (t) through which light can pass.

A display device is disclosed. The display device of present invention comprises a display panel; a light transmitting panel positioned at a front of the display panel, the light transmitting panel including a first edge and a second edge opposite to the first edge; a back cover positioned at a rear of the display panel; and a sensor unit adjacent to a lateral side of the display panel. The sensor unit includes a frame and a optical transmitter and a optical receiver. The optical transmitter includes a optical assembly and a optical bender.

An optical module includes: a stem; a temperature control module; a carrier; a light emitting element fixed on a light emitting element fixing surface of the carrier, having a front surface and a rear surface opposite to each other, emitting signal light from a first emission point in the front surface, and emitting back light from a second emission point in the rear surface; a light receiving element fixed on the carrier by a light receiving element fixing surface; a lens cap; and a lens, wherein a reflecting surface is provided on the carrier, the light receiving element receives the back light reflected by the reflecting surface, and a center of a light receiving surface of the light receiving element is positioned between the front surface and the rear surface in an optical axis direction of the signal light.