Abstract: A handheld thermal imager includes an objective lens assembly, a body assembly, and an eyepiece assembly that are arranged in sequence. The body assembly is provided with a focusing mechanism and a control mechanism. The focusing mechanism includes a focusing knob located at one end of the body assembly close to the eyepiece assembly. The focusing knob is partially exposed from an upper wall of a housing of the body assembly to be turned by a holding hand for focusing. The control mechanism comprises buttons arranged on the upper wall of the housing to be pressed by fingers of the holding hand. Both focusing and button operation can be performed by the holding hand, without requiring the involvement of the other hand.

Abstract: Embodiments include a search method and an electronic device. The electronic device may record, in a unified manner, searchable content corresponding to each application into index information based on an index template. The index information may be stored in an index information file. Subsequently, after detecting input query content, the electronic device does not need to start a process in each application, but obtains the index information in the index information file, and then searches the index information based on the query content to obtain a search result. The search result may cover application content that matches the query content in each application. In this way, search time may be reduced and power consumption in the search may be reduced.