6 results about "Image intensification" patented technology

The application provides a kind of steel band surface defect multispectral fusion high-speed detection device and detection method, belong to steel band surface defect detection technical field, including foundation and main support, the main support is door type structure, across the both sides of steel band production equipment, bottom is connected with foundation using embedded bolt.The application is irradiated to steel band surface by LED array light source respectively using white, ultraviolet light and red light source, and the image of steel band surface after being irradiated by different light sources is collected using CCD camera respectively, so that when image recognition is carried out, the image of white light source is identified according to the brightness of reflected light, the defect of different depth is identified, the image of ultraviolet light source is identified by shortening wavelength to break through diffraction limit, the resolution and contrast of surface defect detection are improved;The image of red light source enhances the color development effect of small scratch on metal surface;Through the image recognition of different light colors, the detection and recognition accuracy can be effectively improved, and the influence of sundries and reflection on detection result is reduced.

We present a ground-based laser system for searching, ranging, and tracking that actively illuminates small resident space objects (RSOs) in low Earth orbit (LEO) and observes position and transit-time of reflections, enabling orbital custody of most one-to-few centimeter-sized objects. A diode-pumped alkali laser (DPAL) augmented with mode-locking and Q-switching serves as an illuminator and offers exceptionally high spectral brightness due to its output beam's sub-nanosecond pulse duration and picometer-level spectral linewidth. Kilohertz fast-rastering enables interrogations of distinct few-meter-sized sky-patches at megahertz rates. Paired on the observation side with one or more telescopes outfitted with Faraday anomalous dispersion optical filters (FADOFs), image intensifiers, multi-pixel arrays, and nanosecond timing, the combined system could offer nearly background-free discoveries of RSOs every hour, even during daytime. Periodically re-flashing previously discovered objects to maintain orbit custody expends only a small fraction of total observing time.

With the invention, the afterglow of a fluorophore can be visualized by observation with a rolling-shutter camera under pulsed illumination. Image sections captured during a dark phase contain only the light emitted by long-lived fluorophores. This enables the imaging acquisition of long-lived fluorescence using inexpensive, widely available CMOS cameras without moving parts and without image intensifiers and without synchronization of camera and pulsed illumination.

This application provides an optical lens structure and an optical device. The optical lens structure includes an objective lens assembly, an image-switching lens assembly, and an eyepiece assembly arranged sequentially from the object side to the image side along the main optical path. It also includes a conversion device and an image-enhancing optical element connected to the conversion device. The conversion device is used to switch the image-enhancing optical element to the main optical path between the objective lens assembly and the image-switching lens assembly when the optical lens structure is in a low-light environment, thereby achieving image enhancement in low-light environments to form a clear image for human observation. Furthermore, in visible light environments, the image-enhancing optical element can be switched out of the main optical path to avoid overexposure and affecting imaging effects if the image-enhancing optical element is in the optical path. This allows the optical lens structure to be used in both low-light and visible light environments without the need for two sets of lenses for different environments, thus simplifying the structure, reducing cost and weight, and improving portability.

An image intensifier assembly has an image intensifier tube having a optical element. The optical element includes a emitting surface. The optical element comprises an outer dimension. The image intensifier assembly further includes a first power supply comprising a first circuit board having a first inner dimension defining an opening, a first outer dimension and a first thickness. The first inner dimension surrounds the outer dimension of the optical element. The first outer dimension is within the image intensifier assembly. The first circuit board further includes a component surface. The component surface extends from the first inner dimension to the first outer dimension. The first circuit board has power supply components mounted on the component surface.