CN102253571B - Camera equipment and infrared optical filter switching device - Google Patents
Camera equipment and infrared optical filter switching device Download PDFInfo
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- CN102253571B CN102253571B CN201110009335.6A CN201110009335A CN102253571B CN 102253571 B CN102253571 B CN 102253571B CN 201110009335 A CN201110009335 A CN 201110009335A CN 102253571 B CN102253571 B CN 102253571B
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- switching device
- motor
- device shifter
- infrared
- infrared fileter
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- 230000003287 optical effect Effects 0.000 title claims abstract description 7
- 210000000078 claw Anatomy 0.000 claims abstract description 14
- 206010070834 Sensitisation Diseases 0.000 claims description 15
- 230000008313 sensitization Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims description 3
- 239000013307 optical fiber Substances 0.000 abstract 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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Abstract
The invention discloses camera equipment and an infrared optical fiber switching device. The camera equipment comprises a lens body, a stepping motor, a claw with threads, a motor screw, a motor bracket, a guide shaft and a switching device body; the switching device body comprises an infrared edge optical filter and an infrared pass optical fiber; the stepping motor is mounted on the motor bracket, the motor screw is connected with the stepping motor, the claw with the threads is arranged on the motor screw, the switching device body is arranged on the guide shaft, the claw with threads is connected with the switching device body, and the guide shaft and the motor bracket are mounted on the lens body of the camera equipment. By using the camera equipment, the infrared optical filter switching device can be applied to a tenfold mini lens, and a position detector is arranged on the lens so as to confirm that the optical filter is successfully switched.
Description
Technical field
The present invention relates to safety-security area, in particular a kind of picture pick-up device and infrared fileter switching device shifter thereof.
Background technology
Existing integrated camera is generally used for round-the-clock safety monitoring industry, and it,, except requiring to monitor daytime, also requires under the condition of infrared light, to monitor night.Therefore just require the video camera can infrared light responsive.Under daytime well-lighted state, in environment, there is a large amount of infrared lights, if video camera infrared light responsive can cause the color of object untrue, be called for short: colour cast.
In order to solve the problem that daytime, colour cast evening again can infrared light responsive, existing method is the switching device shifter that infrared fileter is set in video camera, by day time, cutoff filter is switched to photosensitive sites; In the time of evening, by infrared, by filter, be switched to photosensitive sites.
At present, the electromagnetically operated valve adopting during the infrared fileter switching device shifter in integrated camera drives.But because the structural volume of electromagnetically operated valve is larger, cause it on 10 times of mini camera lenses, can not use.In addition, owing to adopting the infrared fileter switching device shifter of solenoid-driven there is no position detector, can cause, do not know that whether switching is successful; And the unascertainable problem in position of the initial stage infrared fileter powering on.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The object of the present invention is to provide a kind of picture pick-up device and infrared fileter switching device shifter thereof, while being intended to solve the employing solenoid-driven infrared fileter switching device shifter of existing integrated camera, structural volume is large and there is no a problem of position probing.
Technical scheme of the present invention is as follows:
A kind of infrared fileter switching device shifter of picture pick-up device, comprise camera lens body, wherein, also comprise stepper motor, screwed claw, motor screw rod, motor support, the axis of guide, switching device shifter body, on described switching device shifter body, comprise cutoff filter and the infrared filter that passes through, described stepper motor is arranged on described motor support, described motor screw rod is connected with stepper motor, described screwed claw is assemblied on described motor screw rod, described switching device shifter body is assemblied on the described axis of guide, described screwed claw connects described switching device shifter body, the described axis of guide and described motor support are installed on the camera lens body of described picture pick-up device.
The infrared fileter switching device shifter of described picture pick-up device, wherein, also comprises the opsition detector for detection of the position of described infrared fileter switching device shifter, and described position detector is arranged on camera lens body.
The infrared fileter switching device shifter of described picture pick-up device, wherein, described position detector is an infrared energy-conserving type optical chopper, it comprises light-emitting diode, sensitization triode and anti-dazzling screen; Described anti-dazzling screen is arranged on described switching device shifter body, for stoping described sensitization triode to respond to the light that described light-emitting diode sends.
The infrared fileter switching device shifter of described picture pick-up device, wherein, described motor screw rod is synchronizeed and is rotated with described stepper motor.
The infrared fileter switching device shifter of described picture pick-up device, wherein, described infrared fileter switching device shifter will be through position initialization operation after powering on.
The infrared fileter switching device shifter of described picture pick-up device, wherein, described anti-dazzling screen and described infrared by being arranged on homonymy, when described infrared while switching to photosensitive region by filter, described anti-dazzling screen blocks the light that the inducing luminous diode of described sensitization triode sends.
The infrared fileter switching device shifter of described picture pick-up device, wherein, described stepper motor is by clockwise rotating or rotate counterclockwise the described switching device shifter body of control.
A picture pick-up device, wherein, described picture pick-up device comprises above-mentioned infrared fileter switching device shifter.
Beneficial effect of the present invention: the present invention is by arranging a stepper motor, by stepper motor, drive infrared fileter switching device shifter to switch, dwindled volume, can use on 10 times of mini camera lenses, and a position detector is set on camera lens, can guarantee that filter can be switched to precalculated position accurately, and can locate accurately at the initial stage of powering on.
Accompanying drawing explanation
Fig. 1 and Fig. 2 are the structural representations of infrared fileter switching device shifter provided by the invention.
Fig. 3 is the detection principle schematic of position detector provided by the invention.
Embodiment
For making object of the present invention, technical scheme and advantage clearer, clear and definite, referring to accompanying drawing, developing simultaneously, the present invention is described in more detail for embodiment.
Referring to Fig. 1 and Fig. 2, the infrared fileter switching device shifter of picture pick-up device provided by the invention comprises camera lens body 1, stepper motor 2, screwed claw 3, motor screw rod 4, motor support 5, the axis of guide 6, switching device shifter body 7 and opsition detector 8, comprises cutoff filter 72, infrared by filter 71 on described switching device shifter body.Described motor support 5 is arranged on described camera lens body 1, and described stepper motor 2 is fixed on motor support 5, and described motor screw rod 4 is connected with stepper motor 2.When stepper motor 2 powers on after rotation, described motor screw rod 4 is followed stepper motor 2 and is synchronously rotated.Described screwed claw 3 is assemblied on described motor screw rod 4, and when motor screw rod 4 rotates, described screwed claw 3 can move along motor screw rod 4 axis directions.The described axis of guide 6 is arranged on camera lens body 1, and described switching device shifter body 7 is assemblied on the described axis of guide 6, and can slide along the axis of guide 6.Described screwed claw 3 is connected with switching device shifter body 7.
After described stepper motor 2 powers on, by controller, can control described stepper motor 2 and whether rotate.When stepper motor 2 rotates, described screwed claw 3 moves on motor screw rod 4, drive and its connection switching apparatus body 7 is moved on the described axis of guide 6 simultaneously.When switching device shifter body 7 moves to precalculated position, can stop operating by control step motor 2.
The present invention, in order to locate accurately the position of switching device shifter body 7, is also provided with a position detector 8, and described position detector 8 is arranged on described camera lens body 1.Referring to Fig. 3, embodiment for the preferential position detector of the present invention, the present embodiment adopts infrared energy-conserving type optical chopper as position detector, it comprises light-emitting diode and sensitization triode, the light output high value that described sensitization triode sends by inducing luminous diode, also comprise an anti-dazzling screen 73 moving between light-emitting diode and sensitization triode, described anti-dazzling screen 73 is arranged on switching device shifter body 7, and described anti-dazzling screen 73 is along with the switching action of infrared fileter switching device shifter is moved between light-emitting diode and sensitization triode.Its operation principle is: when the anti-dazzling screen 73 on being arranged on switching device shifter body 7 does not keep off between light-emitting diode and sensitization triode, Vout exports high level; When described anti-dazzling screen 73 gears are between described light-emitting diode and sensitization triode, Vout output low level.It is the position that output high level or low level can be judged switching device shifter body 7 that control system only need to detect Vout.
In embodiment provided by the invention, described anti-dazzling screen 73 is infraredly arranged on homonymy by filter 71 with described, when described switching device shifter body 7 is switched to IR-cut position, be that cutoff filter 72 is when photosensitive region, described anti-dazzling screen 73 does not keep off between described light-emitting diode and sensitization triode, and Vout exports high level.
Described infrared fileter switching device shifter needs to carry out initialization after picture pick-up device powers on, and its initialized flow process comprises the following steps:
Step S1: device power, and read the output valve Vout of position detector.
Step S2: the output valve Vout of judgement position detector is high level or low level, if high level performs step S3, if low level performs step S6.
Step S3: stepper motor rotates and turns clockwise.
Step S4: the output valve that reads position detector.
Step S5: the output valve Vout of judgement position detector is high level or low level, if high level performs step S3, if low level performs step S6.
Step S6: stepper motor turns counterclockwise.
Step S7: the output valve that reads position detector.
Step S8: the output valve Vout of judgement position detector is high level or low level, if high level completes initialization operation, if low level performs step S6.
The cutoff filter 72 that the init state that the present embodiment proposes is the described infrared fileter switching device shifter of assurance is in photosensitive region.Certainly, described init state also can be provided with the infrared initial position that is defined as when the photosensitive region by filter 71, initialization flow process now just and above-mentioned flow process different.
Detailed operation principle and the flow process of infrared fileter switching device shifter provided by the invention are:
The first step: give device power, by reading the output valve Vout of position detector, judge that it is high level or low level, just can know that working as front filter is feeling infrared position or do not feeling infrared position.
Second step: described infrared fileter switching device shifter is carried out to position initialization.
The 3rd step: after position initialization, current initial position has just accurately been determined.Next, when needs switch infrared fileter, by counting the step number of stepper motor, just infrared fileter can be moved on to the exact position of appointment.
The 4th step: infrared fileter is in the process of switching, at the output valve Vout of position detector when low level becomes high level, and while becoming low level from high level, the step number of motor at that time of record during whether with initialization the step number of motor consistent, if consistent, illustrate and switch and can correctly complete.If inconsistent, to re-start initialization.So just can guarantee that each switching is all successfully, solve the whether problem of handover success the unknown of electromagnetic valve device.And described infrared fileter switching device shifter volume is little, can use on 10 times of mini camera lenses.
During described initialization, the step number of motor is that lens design has out just been determined, is a constant value.When camera lens initialization, can first motor be driven into output valve Vout from low level, become the position of high level.Then the step number of the variable that this constant value is assigned to recording pen motor step number during as the initialization of motor.
The present invention also provides described in a kind of picture pick-up device and is provided with above-mentioned infrared fileter switching device shifter in picture pick-up device.
Should be understood that, application of the present invention is not limited to above-mentioned giving an example, and for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection range of claims of the present invention.
Claims (4)
1. the infrared fileter switching device shifter of a picture pick-up device, comprise camera lens body, it is characterized in that, also comprise stepper motor, screwed claw, motor screw rod, motor support, the axis of guide, switching device shifter body, on described switching device shifter body, comprise cutoff filter and the infrared filter that passes through, described stepper motor is arranged on described motor support, described motor screw rod is connected with stepper motor, described screwed claw is assemblied on described motor screw rod, described switching device shifter body is assemblied on the described axis of guide, described screwed claw connects described switching device shifter body, the described axis of guide and described motor support are installed on the camera lens body of described picture pick-up device, also comprise the position detector for detection of the position of described infrared fileter switching device shifter, described position detector is arranged on camera lens body, described position detector is an infrared energy-conserving type optical chopper, and it comprises light-emitting diode, sensitization triode and anti-dazzling screen, described anti-dazzling screen is arranged on described switching device shifter body, for stoping described sensitization triode to respond to the light that described light-emitting diode sends,
Described infrared fileter switching device shifter will be through position initialization operation after powering on; Infrared fileter is in the process of switching, in the output valve of position detector when low level becomes high level, and while becoming low level from high level, the step number of calculating motor at that time during whether with initialization the step number of motor consistent, if consistent, illustrate and switch and can correctly complete; If inconsistent, to re-start initialization;
Described anti-dazzling screen is along with the switching action of infrared fileter switching device shifter is moved between light-emitting diode and sensitization triode;
Described anti-dazzling screen and be describedly infraredly arranged on homonymy by filter, when described infrared while switching to photosensitive region by filter, described anti-dazzling screen blocks the light that the inducing luminous diode of described sensitization triode sends, output valve output low level; When cutoff filter is during in photosensitive region, described anti-dazzling screen does not keep off between described light-emitting diode and sensitization triode, output valve output high level; It is the position that output high level or low level can be judged switching device shifter body that control system detects output valve;
During described initialization, the step number of motor is that lens design has out just been determined, is a constant value; When camera lens initialization, can first motor be driven into output valve from low level, become the position of high level, the step number of the variable that then this constant value is assigned to recording pen motor step number during as the initialization of motor.
2. the infrared fileter switching device shifter of picture pick-up device according to claim 1, is characterized in that, described motor screw rod is synchronizeed and rotated with described stepper motor.
3. the infrared fileter switching device shifter of picture pick-up device according to claim 1, is characterized in that, described stepper motor is by clockwise rotating or rotate counterclockwise the described switching device shifter body of control.
4. a picture pick-up device, is characterized in that, described picture pick-up device comprises infrared fileter switching device shifter described in claims 1 to 3 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110009335.6A CN102253571B (en) | 2011-01-17 | 2011-01-17 | Camera equipment and infrared optical filter switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110009335.6A CN102253571B (en) | 2011-01-17 | 2011-01-17 | Camera equipment and infrared optical filter switching device |
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| Publication Number | Publication Date |
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| CN102253571A CN102253571A (en) | 2011-11-23 |
| CN102253571B true CN102253571B (en) | 2014-07-16 |
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| CN201110009335.6A Expired - Fee Related CN102253571B (en) | 2011-01-17 | 2011-01-17 | Camera equipment and infrared optical filter switching device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176337A (en) * | 2011-12-22 | 2013-06-26 | 鸿富锦精密工业（深圳）有限公司 | Optical filter switching structure of monitor |
| CN103841409B (en) * | 2012-11-26 | 2015-10-14 | 浙江大华技术股份有限公司 | Detection method, Apparatus and system that infrared fileter switches |
| CN103888651B (en) * | 2014-04-16 | 2017-08-25 | 中磊电子（苏州）有限公司 | Network camera |
| CN110943655B (en) * | 2019-12-13 | 2021-07-27 | 苏州智感电子科技有限公司 | Self-checking method and system for stepping motor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200944635Y (en) * | 2006-08-17 | 2007-09-05 | 上海龙达胜宝利光电有限公司 | Digital automatically day and night photographic arrangement |
| CN101064778A (en) * | 2006-04-29 | 2007-10-31 | 上海乐金广电电子有限公司 | Photograph mode control method for monitor camera |
| CN201024280Y (en) * | 2007-04-11 | 2008-02-20 | 宁波红旗马纺织机械科技有限公司 | Yarn moving regulation device for computerized flat knitting machine |
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2011
- 2011-01-17 CN CN201110009335.6A patent/CN102253571B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101064778A (en) * | 2006-04-29 | 2007-10-31 | 上海乐金广电电子有限公司 | Photograph mode control method for monitor camera |
| CN200944635Y (en) * | 2006-08-17 | 2007-09-05 | 上海龙达胜宝利光电有限公司 | Digital automatically day and night photographic arrangement |
| CN201024280Y (en) * | 2007-04-11 | 2008-02-20 | 宁波红旗马纺织机械科技有限公司 | Yarn moving regulation device for computerized flat knitting machine |
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