Line scanning camera
A camera and line scanning technology, applied in image communication, electrical components, etc., can solve the problems of the scanned object is not very flat, the appearance of virtual images, the deviation of the imaging object distance, etc., to achieve the effect of convenient operation and simple structure
Pending Publication Date: 2021-10-15
深圳市光太科技有限公司
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But the cylindrical self-focusing lens line scan camera has a disadvantage. Its depth of field is only ±0.5mm. In the application, the scanned object is often not very flat. If it is not flattened, a virtual image will appear. The essence of the virtual image is the deviation of the imaging object distance. Therefore, in order to obtain high-definition images, the accuracy of the imaging object distance must be maintained
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[0014] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.
[0015] In the description of the present...
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The invention discloses a line scanning camera, which comprises a machine body and a linear array image sensor; a transparent roller is rotatably installed in the machine body; the linear array image sensor is rotatably installed on the inner side of the transparent roller; rolling supports are arranged at the two ends, away from each other, of the transparent roller; each rolling support is composed of a rolling shaft and a rolling wheel; one end of each rolling wheel is rotatably connected with a matched rolling shaft, and the other end of each rolling wheel is connected with the transparent roller; one end of each rolling shaft is fixedly connected with the linear array image sensor, and the end, away from the linear array image sensor, of each rolling shaft is connected with a machine body. The linear scanning camera has the beneficial effects that the linear scanning camera adopts the transparent roller, the structure is simple, and the operation is convenient; local flattening processing can be carried out on a scanning piece through the transparent roller, light and thin wrinkled objects can be scanned, and curved objects can also be scanned; virtual images caused by imaging object distance deviation are avoided, the imaging object distance precision is ensured, and the image definition is effectively improved.
Description
technical field [0001] The invention relates to the technical field of industrial cameras, in particular to a line scan camera. Background technique [0002] Line scan camera, also known as line scan camera, is divided into optical lens line scan camera and cylindrical self-focusing lens line scan camera according to the focusing lens. The cylindrical self-focusing lens line scan camera is a close-object distance camera, and its object-to-image ratio is 1:1 , often used in high-precision flat camera, such as copiers, hand-held scanners and so on. However, there is a shortcoming of the cylindrical self-focusing lens line scan camera. The depth of field is only ±0.5mm. In the application, the scanned object is often not very flat. If it is not flattened, a virtual image will appear. The essence of the virtual image is the deviation of the imaging object distance. Therefore, in order to obtain high-definition images, the accuracy of the imaging object distance must be maintain...
Claims
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IPC IPC(8): H04N1/00H04N1/04
CPCH04N1/00647H04N1/04
Inventor 肖昌林李宏明
Owner 深圳市光太科技有限公司