Abstract: Provided are a filtration device and an air conditioner. The filtration device is applied in the air conditioner, and includes a frame and a filtration structure. The filtration structure is detachably connected to the frame by a first buckle. The frame is configured to be mounted at a housing of the air conditioner. In the filtration device according to the present disclosure, the filtration structure is detachably connected to the frame by the first buckle. After the filtration device is used for a period of time, a user can disassemble the filtration structure for cleaning, maintenance, or replacement.

Abstract: A pet toy that can automatically supply food, comprising a base and a rotating dish, the rotating dish is provided with a food inlet, a food storage bin is arranged between the base and the rotating dish, wherein pet foods are added into the food storage bin through the food inlet, the inner edge of the food storage bin is provided with a dispensing channel, below the dispensing channel is the food falling outlet, and the lower surface of the rotating dish is provided with a pushing block for pushing pet food to move. By rotating the rotating dish, the food in the food storage bin is pushed to the edge of the food storage bin by the pushing block, and falls to the outside through the dispensing channel through the falling outlet.

Abstract: A display inspection system for inspecting a light beam emitted from a panel with pixels positioned at several focal planes is provided. The display inspection system includes a focus tunable lens adjustable in a focal distance for focusing at the panel, a first sensing unit for receiving the light beam, a reduced aberration optical system arranged between the focus tunable lens and the first sensing unit for focusing at the first sensing unit, and one or more optical elements placed within a back focal length of the reduced aberration optical system. The reduced aberration optical system comprises a first serial cascade lens group of a first aplanatic lens and a first doublet lens for correcting an optical aberration. The first aplanatic lens and the first doublet lens are co-configured that the back focal length is extended in a manner that the light beam is incident to the first sensing unit.

Abstract: The application discloses a pet food dispensing device with adjustable feeding speed, comprising a base and a food storage part, wherein the food storage part is arranged above the base, and an adjustment rotating dish is also arranged between the base and the food storage part, the adjustment rotating dish is provided with a plurality of food dispensing holes with different sizes, and food dispensing channels are arranged on the base; by rotating the adjustment rotating dish, the food dispensing holes with different sizes can be aligned with the food dispensing channel or disconnected from the food dispensing channel according to the needs, which has the advantage of being able to adjust the feeding speed of pet food according to needs.