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

Mobile phone with fixed-focus lens

A fixed-focus lens and mobile phone technology, applied in electromagnetic radiation induction, optics, instruments, etc., can solve problems such as reducing recognition accuracy, affecting clarity, and images are not as clear as blue light, and achieve the effect of improving recognition accuracy

Inactive Publication Date: 2013-08-21
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, fixed-focus lenses are generally installed on existing mobile phones. If a fixed-focus lens is used to capture QR codes, a short focal length is required to obtain a clear image.
And because the focal length of red light and green light is farther than that of blue light, the image of red light signal and green light signal on the imaging surface is not as clear as blue light when shooting at close range
However, in the existing technology of using a fixed-focus lens to shoot QR codes, the red light, green light, and blue light signals of the QR code are usually obtained, so that the imaging effect of the red light and green light affects the overall clarity, thereby reducing the recognition accuracy.

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
  • Mobile phone with fixed-focus lens
  • Mobile phone with fixed-focus lens

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0011] like figure 1 As shown, the mobile phone 100 with a fixed-focus lens provided by the first embodiment of the present invention includes a fixed-focus lens 10, an image sensor 20, at least one image processor 30, and an information code recognition device 40, and the mobile phone 100 can Identify information codes in black and white. In this embodiment, the information code is a QR code. The mobile phone 100 has a normal shooting mode, an information code identification mode and a switching module 50 . The normal shooting mode is used to shoot common scenes, the information code recognition mode is used to start when shooting information codes, and the switching module 50 is used to switch between the normal shooting mode and the information code recognition mode according to user commands .

[0012] The fixed-focus lens 10 is provided with a plurality of lenses for refracting the incident light of the subject. The fixed-focus lens 10 is installed on the image sensor...

no. 2 approach

[0023] like figure 2 As shown, the mobile phone 200 with a fixed-focus lens provided by the second embodiment of the present invention is basically similar to the mobile phone 100 provided by the first embodiment, the difference is that the image processor 30' includes a first processor 31a and a second A processor 31b, the first processor 31a is connected to the red light signal transmission circuit 210', the green light signal transmission circuit 212' and the blue light signal transmission circuit 214'. The first processor 31a is not connected to the information code recognition device 40, but is connected to an image display device 70 to directly display images with red light signals, green light signals and blue light signals. The second processor 31b' is connected to the blue light signal transmission circuit 214' through a second switch 63', and the second switch 63' is controlled by the control module 60'. The information code recognition device 40' is connected to t...

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 invention relates to a mobile phone with a fixed-focus lens, which has an information code recognition mode. The mobile phone comprises a fixed-focus lens, an image sensor, at least one image processor and an information code recognizing device, wherein the fixed-focus lens is used for collecting visible light transmitted by an information code; the image sensor is used for sensing the visible light and respectively outputting a red information code image signal, a green information code image signal and a blue information code image signal which are processed by the image processor; the information code recognizing device is used for obtaining, decoding and recognizing images processed by the image processor; and the image processor comprises a control module which is used for controlling the image processor to only obtain the blue information code image signal when the mobile phone is switched into an information code recognizing mode. The mobile phone is only used for filtering blue-light signals in the information code so as to obtain clear information code images.

Description

technical field [0001] The invention relates to a communication device, in particular to a mobile phone with a fixed-focus lens. Background technique [0002] QR (Quick Response) code is a kind of two-dimensional barcode. QR code can store more information than ordinary barcode and occupy a smaller area, so it is more and more popular among merchants and consumers. In addition, due to the widespread use of mobile phones, the QR code recognition function is usually integrated into the mobile phone. [0003] When identifying a QR code, usually use a focusing lens to take a macro shot of the QR code, and then decode the QR code through a specific decoding software to obtain accurate QR code information. However, fixed-focus lenses are generally installed on existing mobile phones. If a fixed-focus lens is used to capture QR codes, a short focal length is required to obtain a clear image. And because the focal length of red light and green light is farther than that of blue li...

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): G02B15/14G06K7/12H04W88/02H04M1/72439
Inventor 张宗恒
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD