Device and method for realizing wide-range scanning imaging through adoption of photoelectric detector array
A photodetector, large-scale scanning technology, used in color TV parts, TV system parts, TVs, etc. Achieve reliable, high system stability, fast step scan effect
Pending Publication Date: 2018-03-20
杨荣
View PDF0 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
It is characterized by large volume and is not suitable for long-focus long-distance detection system applications
[0005] In addition, the traditional camera is driven by a stepping motor to move step by step and stop step by step to scan. In principle, it can complete a large-scale scanning imaging, but the scanning speed is slow due to the large sensor quality, especially when the focal length of the camera optical system increases ( When the quality of the optical lens increases) to a certain extent, the continuous step impact will lead to a sharp increase in system power consumption and a sharp drop in reliability, which will affect the feasibility of engineering applications
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0038] Such as figure 1 As shown, the device for large-scale scanning imaging of the present invention includes a photodetector array 3, an imaging lens 4 and a reflector 5 arranged in sequence in space, and the photodetector array 3 and the reflector 5 are all arranged on the optical axis of the imaging lens 4 Above, wherein the reflector 5 and the optical axis 11 of the imaging lens 4 are arranged at an oblique angle, that is to say, the central vertical line of the reflector 5 maintains a certain angle with the optical axis of the imaging lens 4, and its angle ranges from 30° to 60°, preferably 45°, the external scene 8 is imaged on the photosensitive surface of the photodetector array 3 after passing through the mirror 5 and the imaging lens 4 .
[0039] In order to realize large-scale imaging around the optical axis 11, the photodetector array 3 is fixed on the first rotating shaft 1 coaxially arranged with the optical axis 11, and the reflector 5 is arranged on the secon...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a device and method for realizing wide-range scanning imaging through adoption of a photoelectric detector array. The device comprises the photoelectric detector array, an imaging lens and a reflector which are set in sequence. The photoelectric detector array and the reflector are set on an optical axis of the imaging lens. The reflector and the optical axis are set in a mode of forming an included angle. An external scene is imaged on a photosensitive surface of the photoelectric detector array through the reflector and the imaging lens. The photoelectric detector array is fixed on a first rotation axis and rotates around the first rotation axis. The first rotation axis and the optical axis are set coaxially. The reflector is set on a second rotation axis and rotates around the second rotation axis. The second rotation axis and the optical axis are set coaxially. The first rotation axis and the second rotation axis rotate synchronously. The rotating detector and reflector are relatively light components and the imaging lens with relatively heavy mass does not move, so the rapid stepping scanning can be realized; the relatively high system stability is kept; and the engineering realization is resalable.
Description
technical field [0001] The invention belongs to the field of video monitoring applications, and relates to a device and method for realizing large-scale panoramic scanning imaging by using an area array photodetector. Background technique [0002] In the field of video surveillance and alarm applications, it is necessary to implement image monitoring for large areas or large airspaces. Such applications have high requirements for technical indicators such as monitoring range, resolution, sensitivity, and alarm response time of monitoring sensors. Under the premise of ensuring the resolution and sensitivity of the sensor (guaranteeing the detection distance of the specified target, especially the detection of small targets at a distance of more than one thousand meters), the main way to expand the monitoring range is to achieve large-scale scene image acquisition through scanning methods. [0003] For area array imaging detectors, such as CCD, CMOS, infrared focal plane and o...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/225H04N7/18G03B37/02
CPCH04N7/18G03B37/02H04N23/50H04N23/55
Inventor 杨荣
Owner 杨荣