Rear focusing structure for CCD (Charge Coupled Device) and CMOS (Complementary Metal-Oxide-Semiconductor Transistor) camera
A CMOS camera and post-focusing technology, which is applied in the direction of cameras, focusing devices, installations, etc., can solve the problems of inconvenient focusing structure, difficult real-time adjustment, and difficult accurate adjustment, and achieve reliable functions, simple structure, and accurate focusing.
Inactive Publication Date: 2013-06-12
安徽现代电视技术有限公司
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Problems solved by technology
However, for the camera installed in the protective box, it is very inconvenient to operate the focusing structure located at the front end, and it is difficult to achieve accurate adjustment, and it is even more difficult to perform real-time adjustment under working conditions; have the same problem
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[0013] see figure 1 , in the rear focusing structure of the CCD and CMOS cameras in this embodiment, the optical lens 1 is arranged on the front end of the housing 7, and the sensor assembly 2 coaxial with the optical lens 1 is installed in the housing 7, and the sensor assembly 2 Under the action of the axial drive mechanism, it can move forward and backward in the axial direction, and the manipulator of the axial drive is located at the rear end of the housing 7 .
[0014] Such as figure 1 As shown, in a specific implementation, the axial drive mechanism is a screw nut structure composed of a screw 5 and a nut 4, the screw 5 runs through the rear end of the housing 7, and the front end of the screw 5 touches the back of the sensor assembly 2, And the axial movement of the screw rod 5 can push the forward movement of the sensor assembly 2; the nut 4 is fixedly arranged on the rear end of the housing 7, and one end of the extension spring 3 is connected with the sensor assemb...
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The invention discloses a rear focusing structure for a CCD (Charge Coupled Device) and a CMOS (Complementary Metal-Oxide-Semiconductor Transistor) camera. The rear focusing structure is characterized in that an optical lens is arranged on the front end face of a shell; a sensor assembly which is coaxial with the optical lens is arranged in the shell; under the action of an axial driving mechanism, the sensor assembly can move forwards and backwards along an axial direction; and an operating piece provided with an axial driving piece is arranged on the back end part of the shell. According to the rear focusing structure, the original front end focusing structure of the camera is not changed, and a back end focusing function is additionally arranged for complementing with the original front end focusing structure, so that accurate focusing in various engineering environments can be provided.
Description
technical field [0001] The invention relates to a camera structure composed of CCD, CMOS, infrared and other image sensors, more specifically a camera focusing structure. Background technique [0002] At present, CCD, CMOS cameras and infrared thermal imaging cameras are widely used in security, industry, scientific research, education, family, entertainment, etc., especially in the field of security. above the stage. During the installation and use of the camera, the image quality depends on the adjustment of the installation focus. Improper focus will make the image blurry and greatly affect the effect. All cameras in the prior art can only adjust the focus at the front end, and connect signal lines and power lines at the rear end. However, for the camera installed in the protective box, it is very inconvenient to operate the focusing structure located at the front end, and it is difficult to achieve accurate adjustment, and it is even more difficult to perform real-tim...
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Inventor 姜万勐
Owner 安徽现代电视技术有限公司