Abstract: An optical module includes one or more laminating lenses where object side surfaces and image side surfaces of the laminating lenses are curved surfaces. The optical module also includes at least one of a linear polarizer, a first quarter-phase retarder, a partially transmissive and partially reflective film, a second quarter-phase retarder, and a reflective polarizer that are laminated to the object side surfaces or the image side surfaces of the laminating lenses. The object side surfaces or the image side surfaces of the laminating lenses are not designed as planes to facilitate diaphragm lamination.

Abstract: This disclosure discloses a radiative cooling optical filter, comprising a substrate. One side of the substrate is polished, and the rough side of the substrate is provided with a metal reflective layer. The polished side of the substrate is subsequently provided with the intermediate layers and a top layer. The intermediate layer comprises alternatingly arranged layers A and layers B. The thickness of each layer A and layer B is 50-400 nm. The material of the layer A is silicon dioxide or aluminum oxide, and the material of the layer B is titanium dioxide, silicon nitride or silicon carbide. The material of the top layer is ytterbium fluoride, yttrium fluoride or zinc sulfide. The intermediate layer and the top layer jointly constitute a multi-resonant absorption enhancer in the atmospheric transparent window.

Abstract: A method for bonding a film to a lens and a device for bonding a film to a lens includes a first jig and a second jig that are controlled to move relative to each other, to gradually bond a middle position to an edge position on the lens to the film, so that bubbles between the film and the lens can be reduced, and a good film bonding effect can be achieved. In addition, the method can be performed without processing the film in advance, and obtaining the lens through injection molding after the film is formed, so that optical performance or mechanical performance of the bonded film can be ensured.

Abstract: An eye-movement tracking apparatus and an electronic device are provided. The eye-movement tracking apparatus includes a light source, a lens group, a hot mirror, and a compact camera module. The light source is configured to emit a light ray to an eyeball of a user. The light ray is reflected by the eyeball to form a first light ray and a second light ray that are emitted to the lens group. The first light ray is reflected by the hot mirror for N times to form a third light ray. The second light ray is reflected by the hot mirror for M times to form a fourth light ray. Both M and N are natural numbers, and M and N are different. The optical component allow the third light ray to enter the image sensor, and prevent the fourth light ray from entering the image sensor.

Abstract: An augmented reality device, including a combiner, a laser projector, and a filter, where the laser projector is configured to emit a laser beam, the filter is mounted on the outer surface of the combiner, and a blocking band of the filter blocks a band of the laser beam. The combiner is configured to emit a part of the laser beam from the inner surface of the combiner, to emit a part of the laser beam from the outer surface of the combiner. The filter is configured to block the part of the laser beam emitted from the outer surface of the combiner, and the combiner is further configured to emit, from the inner surface of the combiner, after a part of ambient light whose wavelength is outside the blocking band passes through the filter, a part of the ambient light that enters the combiner.

Abstract: The invention discloses an automatic drip feeder and a purification and aroma humidifier using the same for adding essential oil to solve the problem that existing humidifiers have a good aromatic effect in the early stage of usage, while the aromatic effect disappears in the middle and later stages. A water trough of a humidifier body is provided with a receiving groove used for receiving the automatic drip feeder. Essential oil or aromatic liquid is contained in a container of the automatic drip feeder and is quantitatively added into the water trough of the humidifier via a feed port, thus, realizing a continuous purification and aroma effect.

Abstract: An automatic blow-drying device for pets includes a pet cage and a drying unit, wherein the drying unit is arranged on one side of the pet cage and comprises an air source, air supply passages are respectively arranged on two sides of the air source and are provided with heating elements, the pet cage is provided with openings which are matched with the air supply passages to form stationary air ports, the air supply passages on the two sides are matched with the corresponding stationary air ports to allow an air flow to enter the pet cage to form a surrounding drying area, and the drying unit is connected with an adjustable air port used for blowing air into areas, except for the surrounding drying area, in the pet cage. According to the domestic automatic blow-drying device for pets, a pet can be directly placed in the device to be blow-dried after being bathed, so that the situation where water and pet hair spread all around in a house after the pet is bathed is prevented.

Abstract: This disclosure discloses a radiative cooling optical filter, comprising a substrate. One side of the substrate is polished, and the rough side of the substrate is provided with a metal reflective layer. The polished side of the substrate is subsequently provided with the intermediate layers and a top layer. The intermediate layer comprises alternatingly arranged layers A and layers B. The thickness of each layer A and layer B is 50-400 nm. The material of the layer A is silicon dioxide or aluminum oxide, and the material of the layer B is titanium dioxide, silicon nitride or silicon carbide. The material of the top layer is ytterbium fluoride, yttrium fluoride or zinc sulfide. The intermediate layer and the top layer jointly constitute a multi-resonant absorption enhancer in the atmospheric transparent window.

Abstract: A combination salt lamp and aroma/essential oil diffuser includes: a housing with an outlet for mist exiting the housing and an open space, a water tank inside the housing for storing liquid having a passageway that connects to the mist outlet and can disperse nebulized mist outwardly, a nebulizing assembly within the water tank to nebulize the liquid in the water tank, a salt crystal mineral that sits in the open space of the housing, a heating assembly with a heating element adjacent the salt crystal, a fan assembly inside the housing, and a power assembly for the nebulizing assembly, the heating assembly, and the fan assembly.

Abstract: The invention discloses an automatic drip feeder and a purification and aroma humidifier using the same for adding essential oil to solve the problem that existing humidifiers have a good aromatic effect in the early stage of usage, while the aromatic effect disappears in the middle and later stages. A water trough of a humidifier body is provided with a receiving groove used for receiving the automatic drip feeder. Essential oil or aromatic liquid is contained in a container of the automatic drip feeder and is quantitatively added into the water trough of the humidifier via a feed port, thus, realizing a continuous purification and aroma effect.

Abstract: An automatic blow-drying device for pets includes a pet cage and a drying unit, wherein the drying unit is arranged on one side of the pet cage and comprises an air source, air supply passages are respectively arranged on two sides of the air source and are provided with heating elements, the pet cage is provided with openings which are matched with the air supply passages to form stationary air ports, the air supply passages on the two sides are matched with the corresponding stationary air ports to allow an air flow to enter the pet cage to form a surrounding drying area, and the drying unit is connected with an adjustable air port used for blowing air into areas, except for the surrounding drying area, in the pet cage. According to the domestic automatic blow-drying device for pets, a pet can be directly placed in the device to be blow-dried after being bathed, so that the situation where water and pet hair spread all around in a house after the pet is bathed is prevented.

Abstract: A combination salt lamp and aroma/essential oil diffuser includes: a housing with an outlet for mist exiting the housing and an open space, a water tank inside the housing for storing liquid having a passageway that connects to the mist outlet and can disperse nebulized mist outwardly, a nebulizing assembly within the water tank to nebulize the liquid in the water tank, a salt crystal mineral that sits in the open space of the housing, a heating assembly with a heating element adjacent the salt crystal, a fan assembly inside the housing, and a power assembly for the nebulizing assembly, the heating assembly, and the fan assembly.

Abstract: A method and an apparatus for executing a data recovery operation are provided. The method includes: acquiring identification information of a first change log to be recovered to; searching for the first change log according to the identification information; and recovering a second change log to the first change log according to user data information and metadata information that are recorded in the second change log and user data information and metadata information that are recorded in the first change log, wherein multiple change logs exist between the second change log and the first change log.