CN103149774A - Rear focusing structure for CCD (Charge Coupled Device) and CMOS (Complementary Metal-Oxide-Semiconductor Transistor) camera - Google Patents
Rear focusing structure for CCD (Charge Coupled Device) and CMOS (Complementary Metal-Oxide-Semiconductor Transistor) camera Download PDFInfo
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- CN103149774A CN103149774A CN2013100891181A CN201310089118A CN103149774A CN 103149774 A CN103149774 A CN 103149774A CN 2013100891181 A CN2013100891181 A CN 2013100891181A CN 201310089118 A CN201310089118 A CN 201310089118A CN 103149774 A CN103149774 A CN 103149774A
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Abstract
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
The camera structure that the present invention relates to adopt CCD, CMOS, the imageing sensor such as infrared to consist of more specifically says the video camera focusing structure.
Background technology
At present, CCD, cmos camera and thermal infrared imager are widely used in security protection, industry, scientific research, education, family, amusement etc., and especially at safety-security area, application quantity rose in recent years, more than the installation in general medium-sized city all reaches the hundreds of thousands platform.Video camera is installed and used in process, and picture quality depends on installs the adjusting that focuses on.Focusing improperly will make image blurring unclear, greatly impact effect.In prior art, all video cameras all can only be regulated at front end and focus on, and connect signal wire and power lead in the rear end.But, for the video camera that is arranged in protective housing, operate the focusing structure that is positioned at front end very inconvenient, also be difficult to realize accurate adjusting, be difficult to especially regulate in real time under state when work; Also there is same problem in occasions such as education, industry, scientific researches.
Summary of the invention
The present invention is for avoiding the existing weak point of above-mentioned prior art, a kind of CCD, cmos camera back focusing structure being provided, and it is both complementary with the existing front end focusing function that keeps, and realizes the accurate focusing under various engineering-environments.
The present invention is that the technical solution problem adopts following technical scheme:
The characteristics of a kind of CCD of the present invention, cmos camera back focusing structure are: optical lens is arranged on the front end face of housing, the sensor module that is on coaxial position with described optical lens is arranged in housing, described sensor module can move forward and backward under the effect of axial actuating mechanism vertically, and the controls that described axial actuator is set is in the rearward end of housing.
The characteristics of CCD of the present invention, cmos camera back focusing structure also are:
Described axial actuating mechanism is the screw-nut structure that is made of screw rod and nut, described screw rod runs through the rearward end of described housing, be butted on the back of sensor module with the front end face of described screw rod, and can be with the reach that moves axially the described sensor module of pushing tow of screw rod; Described nut is fixedly installed on the rearward end of described housing, one end of extension spring is connected with described sensor module, the other end is connected with described nut, restoring force with described extension spring makes the front end face of described screw rod remain on the back that is butted on described sensor module, and described controls is the knob that is connected to spiro rod rear end and is in outside.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the present invention does not change the original front end focusing structure of video camera, increases focusing function in rear end is set, and is both complementary, and the accurate focusing under various engineering-environments can be provided.
2, simple in structure, the reliable in function of the present invention.
Description of drawings
Fig. 1 is structural representation of the present invention;
Number in the figure: 1 optical lens; 2 sensor modules; 3 extension springs; 4 nut guide rails; 5 adjusting screw(rod)s; 6 adjusting knobs; 7 housings.
Embodiment
Referring to Fig. 1, in the present embodiment CCD, cmos camera back focusing structure, optical lens 1 is arranged on the front end face of housing 7, the sensor module 2 that is on coaxial position with optical lens 1 is arranged in housing 7, sensor module 2 can move forward and backward under the effect of axial actuating mechanism vertically, and the controls that axial actuator is set is in the rearward end of housing 7.
As shown in Figure 1, in concrete enforcement, axial actuating mechanism is the screw-nut structure that is made of screw rod 5 and nut 4, and screw rod 5 runs through the rearward end of housing 7, be butted on the back of sensor module 2 with the front end face of screw rod 5, and can be with the reach that moves axially pushing tow sensor module 2 of screw rod 5; Nut 4 is fixedly installed on the rearward end of housing 7, one end of extension spring 3 is connected with sensor module 2, the other end is connected with nut 4, restoring force with extension spring 3 makes the front end face of screw rod 5 remain on the back that is butted on sensor module 2, and controls is the adjusting knob 6 that is connected to screw rod 5 rear ends and is in housing 7 outsides.Rotate and regulate turn-button 6, screw rod 5 can move forward and backward in housing vertically, coordinates the effect of the restoring force of extension spring 3, and sensor module 2 can be adjusted in accurately on axial location, change the axial distance between sensor module 2 optical lens, reach the purpose of focusing.
The present invention is suitable for any CCD, CMOS thermal infrared imager or similar optical sensor, is used for the video camera in the fields such as security monitoring, image acquisition, scientific research, Industry Control.
Claims (2)
1. a CCD, cmos camera back focusing structure, it is characterized in that: optical lens (1) is arranged on the front end face of housing (7), the sensor module (2) that is on coaxial position with described optical lens (1) is arranged in housing (7), described sensor module (2) can move forward and backward under the effect of axial actuating mechanism vertically, and the controls that described axial actuator is set is in the rearward end of housing (7).
2. CCD according to claim 1, cmos camera back focusing structure, it is characterized in that described axial actuating mechanism is the screw-nut structure that is made of screw rod (5) and nut (4), described screw rod (5) runs through the rearward end of described housing (7), be butted on the back of sensor module (2) with the front end face of described screw rod (5), and can be with the reach that moves axially the described sensor module of pushing tow (2) of screw rod (5); Described nut (4) is fixedly installed on the rearward end of described housing (7), one end of extension spring (3) is connected with described sensor module (2), the other end is connected with described nut (4), restoring force with described extension spring (3) makes the front end face of described screw rod (5) remain on the back that is butted on described sensor module (2), and described controls is to be connected to screw rod (5) rear end and to be in the outside adjusting knob (6) of housing (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100891181A CN103149774A (en) | 2013-03-20 | 2013-03-20 | Rear focusing structure for CCD (Charge Coupled Device) and CMOS (Complementary Metal-Oxide-Semiconductor Transistor) camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100891181A CN103149774A (en) | 2013-03-20 | 2013-03-20 | Rear focusing structure for CCD (Charge Coupled Device) and CMOS (Complementary Metal-Oxide-Semiconductor Transistor) camera |
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| CN103149774A true CN103149774A (en) | 2013-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013100891181A Pending CN103149774A (en) | 2013-03-20 | 2013-03-20 | Rear focusing structure for CCD (Charge Coupled Device) and CMOS (Complementary Metal-Oxide-Semiconductor Transistor) camera |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105455768A (en) * | 2015-12-25 | 2016-04-06 | 微创（上海）医疗机器人有限公司 | Electronic endoscope |
| CN107370914A (en) * | 2016-05-12 | 2017-11-21 | 安讯士有限公司 | Video camera |
| US11122192B2 (en) | 2019-02-20 | 2021-09-14 | Axis Ab | Dome camera |
| CN114253043A (en) * | 2021-12-23 | 2022-03-29 | 上海航天控制技术研究所 | Auxiliary focusing device of optical system |
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| CN203084398U (en) * | 2013-03-20 | 2013-07-24 | 安徽现代电视技术有限公司 | Back focusing structure for CCD (charge coupled device) camera and CMOS (complementary metal oxide semiconductor) camera |
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| US5005038A (en) * | 1983-10-11 | 1991-04-02 | Canon Kabushiki Kaisha | Focal length changeable camera |
| CN2304135Y (en) * | 1997-09-04 | 1999-01-13 | 欧普罗科技股份有限公司 | Solid-state camera focal-distance regulation device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105455768A (en) * | 2015-12-25 | 2016-04-06 | 微创（上海）医疗机器人有限公司 | Electronic endoscope |
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| CN107370914B (en) * | 2016-05-12 | 2019-03-15 | 安讯士有限公司 | Video camera |
| US11122192B2 (en) | 2019-02-20 | 2021-09-14 | Axis Ab | Dome camera |
| CN114253043A (en) * | 2021-12-23 | 2022-03-29 | 上海航天控制技术研究所 | Auxiliary focusing device of optical system |
| CN114253043B (en) * | 2021-12-23 | 2023-09-29 | 上海航天控制技术研究所 | Auxiliary focusing device of optical system |
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Application publication date: 20130612 |