2results about How to "Increase radiation intensity" patented technology

The application discloses a method for generating tunable and wavefront-controllable terahertz radiation, comprising: generating an electron beam satisfying coherent transition radiation conditions by an electron beam generating module; interfering a target terahertz wavefront with a coherent transition radiation reference field to obtain an interference pattern, and transferring the interference pattern to a surface of a holographic grating target to form a spatial microstructure matching the target terahertz wavefront; guiding the electron beam to a surface center region of the holographic grating target, and making the electron beam pass through the surface of the holographic grating target to generate a coherent transition radiation field at the surface; and using the spatial microstructure to perform frequency spectrum and wavefront regulation on the coherent transition radiation field, so that the coherent transition radiation field is coherently superimposed, and terahertz radiation with the target terahertz is output; wherein the center frequency, the emission direction and the wavefront structure of the terahertz radiation are regulated by adjusting the geometric parameters of the spatial microstructure, the energy and the pulse width of the electron beam.

This utility model relates to the field of environmental protection cabinet technology, specifically an angle-adjustable ultraviolet disinfection lamp for environmental protection cabinets. It includes a lighting component, which is inclinedly installed on the inner top wall of the environmental protection cabinet. An angle adjustment component, capable of rotating along a vertical axis, is installed on top of the lighting component. This angle adjustment component drives the inclined lighting component to rotate along the vertical axis, thus changing the irradiation angle. An angle adjustment disc, rotating along a horizontal axis, is installed on the back of the lighting component. In this angle-adjustable ultraviolet disinfection lamp, the angle adjustment component drives the lighting component to rotate along the vertical axis, and the angle adjustment disc adjusts the tilt of the lighting component along the horizontal axis, forming a multi-dimensional angle adjustment system. This allows the ultraviolet disinfection lamp to irradiate items in different positions and arrangements within the environmental protection cabinet from all directions and multiple angles, completely eliminating the disinfection dead zones present in traditional fixed-installation disinfection lamps.