Unlock instant, AI-driven research and patent intelligence for your innovation.

Non-uniformity correction circuit, method and infrared detector of infrared detector without baffle

A non-uniform correction, infrared detector technology, applied in the field of infrared detection, can solve problems such as high cost and complex external correction process, and achieve the effects of low cost, improved process deviation, and improved uniformity

Active Publication Date: 2021-10-12
BEIJING NORTH GAOYE TECH CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method requires human intervention to calibrate it and store the offset setting value in memory, making the external calibration process more complicated and costly

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Non-uniformity correction circuit, method and infrared detector of infrared detector without baffle
  • Non-uniformity correction circuit, method and infrared detector of infrared detector without baffle
  • Non-uniformity correction circuit, method and infrared detector of infrared detector without baffle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] In order to more clearly understand the above objects, features and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that, in the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0037] In the following description, many specific details are set forth in order to fully understand the present disclosure, but the present disclosure can also be implemented in other ways than described here; obviously, the embodiments in the description are only some of the embodiments of the present disclosure, and Not all examples.

[0038] figure 1 A schematic structural diagram of a non-uniformity correction circuit for a maskless infrared detector provided by an embodiment of the present disclosure. Such as figure 1 As shown, the non-uniform correction circuit of the maskless infrared detector includes an adjustment cir...

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

No PUM Login to View More

Abstract

The disclosure relates to a non-uniform correction circuit and method for an infrared detector without a shield, and an infrared detector. The non-uniform correction circuit includes an adjustment circuit and a bias circuit. The adjustment circuit and the bias circuit are connected at the first node. The output signal of the first node and the output signal of the bias circuit at the first node are superimposed and processed as the infrared response signal of the corresponding effective infrared detection pixel; the adjustment circuit includes a storage conversion module for writing the infrared response refer to the signal and adjust the output switch control signal according to the actual infrared response signal and the infrared response reference signal; the weighted current source module is used to adjust the weighted value of different weighted current signals according to the switch control signal, so as to control its own output current to the first node or The current is input from the first node. Through the technical proposal of the present disclosure, the uniformity of the output image of the infrared detector is improved, and the image non-uniformity correction can be completed without a baffle.

Description

technical field [0001] The present disclosure relates to the technical field of infrared detection, in particular to a non-uniform correction circuit and method for an infrared detector without a shield, and an infrared detector. Background technique [0002] In an infrared detector, such as an infrared focal plane detector array, there is a corresponding signal output circuit for each pixel of the image, that is, for each effective infrared detection pixel in the infrared detector, to realize the detection of infrared radiation energy detection. The working principles of these signal output circuits are the same, and the switching timing complies with the format requirements of the image output, that is, by controlling different signal output circuits, each pixel can be output row by column, that is, the electric current corresponding to each effective infrared detector pixel. Signal. [0003] In the infrared focal plane detector array, the number of signal acquisition lo...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01J5/14
CPCG01J5/14G01J2005/123
Inventor 魏斌翟光杰潘辉武佩
Owner BEIJING NORTH GAOYE TECH CO LTD