CN104375361A - Expandable cable release for camera - Google Patents
Expandable cable release for camera Download PDFInfo
- Publication number
- CN104375361A CN104375361A CN201410779574.3A CN201410779574A CN104375361A CN 104375361 A CN104375361 A CN 104375361A CN 201410779574 A CN201410779574 A CN 201410779574A CN 104375361 A CN104375361 A CN 104375361A
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- Prior art keywords
- cable release
- module
- lightning
- switch
- thunder
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/56—Accessories
- G03B17/565—Optical accessories, e.g. converters for close-up photography, tele-convertors, wide-angle convertors
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/38—Releasing-devices separate from shutter
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/38—Releasing-devices separate from shutter
- G03B17/40—Releasing-devices separate from shutter with delayed or timed action
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
The invention discloses an expandable cable release for a camera. The expandable cable release comprises a cable release plug, a switch S1 and a switch S2. The switch S1 and the switch S2 are in parallel connection. The expandable cable release further comprises an expansion port which is used for connecting a functional module to the cable release. The expansion port is parallelly connected to two ends of the switch S1. The functional module is a thunder and lightning triggering shutter module. The thunder and lightning triggering shutter module comprises a photosensitive resistor R1, a current limiting resistor R2, a potential R3 and triode T1, wherein one end of the photosensitive resistor R1 is connected with a power supply VCC, the other end of the photosensitive resistor R1 is connected with one of the fixed contacts of the potential R3, the movable contact of the potential R3 is serially connected to the current limiting resistor R2 and then connected to the base of the triode T1, and the emitter of the triode T1 is grounded. By the structure, the expandable cable release has the advantages that the camera, the cable release and the functional module are relatively independent, the requirements of shutterbugs can be fully satisfied, and repeat purchasing and resource waste can be avoided.
Description
Technical field
The present invention relates to cable release field, be specifically related to a kind of camera and can expand cable release.
Background technology
Cable release is widely used as a kind of phase peripheral devices, and common cable release can prevent camera shake, and partial shutter line has the function of Preset Time, time exposure, but these functions are cable release inherent function, can not arbitrarily expand.At present, energy assisted tomography fan is to some accidents---and the cable release as captured lightning etc. does not also occur, under emergency case, because of the restriction by the factor such as brain response time, object attribute, current photographic equipment cannot meet shutterbugs and capture the particular/special requirement in particular cases such as accident, shutterbugs need high chance component to go to catch excellent picture, and the cable release simultaneously can not arbitrarily expanded also brings great economy and operational difficulty to shutterbugs.
Summary of the invention
The object of the present invention is to provide a kind of camera to expand cable release, solve current cable release function limited, and do not support to expand, cause the problem that cannot meet the special photograph requirements such as lightning candid photograph.
The present invention for achieving the above object, realize by the following technical solutions: a kind of camera can expand cable release, comprise cable release plug, switch S 1 and switch S 2, switch S 1 is in parallel with switch S 2, also comprise the expansion interface for functional module being accessed cable release, described expansion interface is connected in parallel on the two ends of switch S 1.
Traditional camera shutter release cable generally comprises two switches, one is shutter, another is focusing, press different switches and make different line short circuits, camera automatic decision, to realize release shutter and auto-focusing, also the function such as some cable releases or camera support timing, interval shooting, exposure is had, but these functions are solidificated in the inner or camera internal of cable release, can not expand, and this kind of cable release and camera price relatively high.Present inventor is for addressing this problem, on the basis not affecting general cable release original function, increase by one and expand interface, by expanding interface, required functional module can be linked into cable release, and by the function needed for this Implement of Function Module, as taken lightning, object during shooting is mobile, time-lapse shooting etc., this distinctive creation of this programme, current cable release and camera are all freed, general shutterbugs are made to adopt common camera, again in conjunction with the cable release expanded of this programme, different photography demands can be met, photography cost effectively reduces, and without the need to all buying the camera of build-in function module at every turn, avoid repeat buying and the wasting of resources.
Further, preferably, described expansion interface is USB interface, the first pin of this USB interface be externally fed just, crus secunda be internal cell charging just, tripod is trigger pip pin, and the 4th pin is publicly.USB interface is current widely used general-purpose interface, is, after USB interface, can conveniently connect expansion Interface design, improves the adaptability of interface.
Further, preferably, functional module described in this programme is that thunder and lightning triggers shutter module, described thunder and lightning triggers shutter module and comprises photoresistance R1, current-limiting resistance R2, potentiometer R3 and triode T1, the one termination power VCC of described photoresistance R1, one of them fixed contact of another termination potentiometer R3, the base stage of triode T1 is connected on after the moving contact serial connection current-limiting resistance R2 of potentiometer R3, the grounded emitter of triode T1, the delivery outlet of thunder and lightning triggering shutter module is connected on the collector of triode T1.
At present, also less than the device carrying out taking for lightning or equipment, be generally adopt the mode of capturing, but we know, capture and have very large chance component, the quality of pictures taken cannot be ensured, especially for the object that lightning is written in water like this, because people has certain reaction time, lightning also cannot anticipation, therefore successfully will capture and be difficult to, the lightning candid photograph picture that obtain quality higher is just more difficult.In this programme, photoresistance R1 is used for detecting high light adjoint when thunder and lightning occurs, potentiometer R3 is used as adjustment of sensitivity, when lightning occurs, high light reduces by the resistance of photoresistance R1, and the electric current flowing into triode T1 base stage increases, triode T1 conducting, make camera control case short circuit, trigger shutter.Trigger shutter module by so a kind of thunder and lightning, do not need the shooting that Non-follow control cable release can realize lightning, and shooting effect is very good.
Further, preferably, described functional module is ultraviolet thunder and lightning trigger module, described ultraviolet thunder and lightning trigger module comprises phototriode T2, metal-oxide-semiconductor T3, shunt resistance R4, adjustable resistance R5 and cable release input port, the collector of described phototriode T2 meets power supply VCC, the emitter of phototriode T2 connects the G pole of metal-oxide-semiconductor T3, shunt resistance R4 is connected in parallel on the two ends of phototriode T2, one of them fixed contact of described adjustable resistance R5 connects the G pole of metal-oxide-semiconductor T3, another fixed contact ground connection, described cable release input port comprises cable release input port anode and cable release input port negative terminal, the D pole of cable release input port positive termination metal-oxide-semiconductor T3, the S pole ground connection of cable release input port negative terminal and metal-oxide-semiconductor T3.
In this programme, the sensitivity of phototriode T2 is very high, and along with the change of illumination power, the resistance between the electrode of phototriode T2 can change thereupon, after illumination strengthens suddenly, resistance between the collector of phototriode T2 and emitter sharply reduces, metal-oxide-semiconductor T3 conducting, and then triggers cable release, adjustable resistance R5 can be used to regulate sensitivity, phototriode is relative to photoresistance, and reaction velocity is faster, and the shooting effect for lightning is better.
Further, preferably, functional module described in this programme is that displacement triggers shutter module, and described displacement triggers shutter module and adopts X-band microwave radar module to carry out the motion of inspected object.X-band microwave radar module is the technology of current comparative maturity, and it all has application in fields such as automatic door control, the controls of ATM withdrawal machine automatic video recording, no longer does its concrete structure and principle of work too much introduce and explanation at this.
Further, preferably, functional module described in this programme is Time-delayed trigger shutter module, described Time-delayed trigger shutter module comprises single-chip microcomputer, display and keyboard, the output terminal of keyboard connects the input end of single-chip microcomputer, the input end of display connects the output terminal of single-chip microcomputer, and described keyboard is for setting the time delay interval time, and display is for showing time delay interval time and the triggering times of input.
Further, preferably, this programme also comprises microswitch, and described microswitch is used as the backlight switch of display.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) the present invention is on the basis of general camera shutter release cable, interface is expanded by increasing, different functional modules is combined dexterously with general camera, and accomplish camera, cable release, functional module three's is relatively independent, fully can not only meet the demand of shutterbugs like this, and compare traditional mode (some functional modules being solidificated in cable release inside or camera internal), the present invention when in use, combination is dexterous changeable, require to reduce to camera, and then allow cameraman, especially " the low side configuration of amateur photographer, high-end demand " become a kind of reality.Simultaneously, the relatively cable release of some directly built-in functional module or camera, after adopting the present invention, can realize " joint use ", namely different cameras can use this cable release, only need different according to demand, change corresponding functional module, repeat buying, the wasting of resources can be avoided like this.
(2) the present invention triggers shutter module by design thunder and lightning, and when lightning occurs, high light reduces by the resistance of photoresistance R1, and the electric current flowing into triode T1 base stage increases, and triode T1 conducting, makes camera control case short circuit, triggers shutter.This thunder and lightning triggers shutter module, and not only structure is simple, and the components and parts of use are less, and reaction sensitivity and reliability are all higher, and is easy to realize, and can take lower written in water lightning completely and not rely on fortune.
(3) the present invention is by design Time-delayed trigger shutter module, and adopts high precision external crystal-controlled oscillation to single-chip microcomputer time service, and timing accuracy improves greatly, and, due to the programmability of single-chip microcomputer, user can manually input any delay length, and operability and practicality effectively improve.
Accompanying drawing explanation
Fig. 1 is the structural representation of cable release of the present invention;
Fig. 2 is the electrical block diagram that thunder and lightning of the present invention triggers shutter module;
Fig. 3 is the electrical block diagram of ultraviolet thunder and lightning trigger module of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1:
As shown in Figure 1, a kind of camera described in the present embodiment can expand cable release, comprise cable release plug, switch S 1 and switch S 2, switch S 1 is in parallel with switch S 2, cable release plug is inserted in socket corresponding to camera, cable release is made to be linked into camera, switch S 1, switch S 2 is identical with the on-off action of general cable release, the effect of release shutter and focusing can be played, on this basis, the present embodiment also add expansion interface, expand the two ends that interface is connected in parallel on switch S 1, by expanding interface, functional module can be accessed cable release, and achieve a butt joint with camera, camera is allowed to realize the operation wanted by functional module.Shown in Fig. 1, figure comprises expansion interface input end and cable release output terminal, expand interface input end and be used for access function module, than if automatic shooting lightning functional module, can the functional module etc. of automatic capturing mobile object, and namely cable release output terminal is cable release plug, for cable release is accessed camera, and then realize shutter function.The present embodiment adopts such cable release structure, make camera, cable release, functional module three is relatively independent, can mutually combine neatly again, common camera is also connected with required functional module by this cable release, realize desired function, fully can not only meet the demand of shutterbugs like this, and compare traditional mode (some functional modules being solidificated in cable release inside or camera internal), the present invention when in use, combination is dexterous changeable, require to reduce to camera, and then allow cameraman, especially " the low side configuration of amateur photographer, high-end demand " become a kind of reality.In addition, the relatively cable release of some directly built-in functional module or camera, after adopting the present invention, can realize " joint use ", namely different cameras can use this cable release, only need different according to demand, change corresponding functional module, repeat buying, the wasting of resources can be avoided like this.
Embodiment 2:
The present embodiment is on the basis of embodiment 1, expansion interface is defined as USB interface, first pin of this USB interface be externally fed just, crus secunda is that internal cell is just charging, and tripod is trigger pip pin, and the 4th pin is publicly, USB interface is current widely used general-purpose interface, be, after USB interface, can conveniently connect expansion Interface design, improve the adaptability of interface.
Embodiment 3:
As shown in Figure 2, the present embodiment is on the basis of embodiment 1, functional module is defined as thunder and lightning and triggers shutter module, thunder and lightning triggers shutter module and comprises photoresistance R1, current-limiting resistance R2, potentiometer R3 and triode T1, the one termination power VCC of photoresistance R1, one of them fixed contact of another termination potentiometer R3, the base stage of triode T1 is connected on after the moving contact serial connection current-limiting resistance R2 of potentiometer R3, the grounded emitter of triode T1, the delivery outlet of thunder and lightning triggering shutter module is connected on the collector of triode T1, as shown in Figure 2, cable release input+in figure and cable release input-are the delivery outlet that thunder and lightning triggers shutter module, cable release input+and cable release input-with the expansion interface input end in Fig. 1+, expand interface input end-correspondence to connect, thus realize this functional module (thunder and lightning triggering shutter module) to be linked in cable release.
Come illustratively with a concrete example below.
First, selected photoresistance R1 to be model be 5547 5mm photoresistance, current-limiting resistance R2 to be model be 0805 10K Ω resistance, the maximal value of potentiometer R3 is 15K Ω, the model of triode T1 is 9014, when lightning occurs, high light makes the resistance of photoresistance R1 reduce, so the electric current flowing into triode T1 base stage increases, and make triode T1 conducting, delivery outlet due to thunder and lightning triggering shutter module is connected on the collector of triode T1, and now, camera control line is just by short circuit, trigger shutter, complete and take pictures.
Found by test, the minimum intensity of illumination that can trigger thunder and lightning triggering shutter module is about 0.57Lux, the reaction time of system (thunder and lightning triggers shutter module and camera) is about 50 ~ 80ms, and the duration of thunder and lightning is generally about 100 ~ 150ms, and intensity of illumination is greater than 0.57Lux, therefore, general camera triggers shutter module by this thunder and lightning, can photograph the image of lightning completely.
The thunder and lightning that the present embodiment adopts triggers shutter module, and not only structure is simple, be easy to realize, the requirement of shooting lightning can be reached completely, this style of shooting is without the need to considering the person's development time, by the perception to high light, this thunder and lightning can be triggered at once and trigger shutter module, trigger shutter, take lightning, guarantee intactly to capture lightning.
Embodiment 4:
As shown in Figure 3, the present embodiment is on the basis of embodiment 1, functional module is defined as ultraviolet thunder and lightning trigger module, ultraviolet thunder and lightning trigger module comprises phototriode T2, metal-oxide-semiconductor T3, shunt resistance R4, adjustable resistance R5 and cable release input port, the collector of phototriode T2 meets power supply VCC, the emitter of phototriode T2 connects the G pole of metal-oxide-semiconductor T3, shunt resistance R4 is connected in parallel on the two ends of phototriode T2, one of them fixed contact of adjustable resistance R5 connects the G pole of metal-oxide-semiconductor T3, another fixed contact ground connection, described cable release input port comprises cable release input port anode and cable release input port negative terminal, the D pole of cable release input port positive termination metal-oxide-semiconductor T3, the S pole ground connection of cable release input port negative terminal and metal-oxide-semiconductor T3.
In an embodiment, the sensitivity of phototriode T2 is very high, and along with the change of illumination power, the resistance between the electrode of phototriode T2 can change thereupon, after illumination strengthens suddenly, resistance between the collector of phototriode T2 and emitter sharply reduces, metal-oxide-semiconductor T3 conducting, and then triggers cable release, adjustable resistance R5 can be used to regulate sensitivity, phototriode is relative to photoresistance, and reaction velocity is faster, and the shooting effect for lightning is better.
In addition, it should be noted that, each device in the present embodiment does not have too many requirement in model and Selecting parameter, after having known the technical program, those skilled in the art can realize the object of the invention according to general Selecting parameter completely, and without the need to paying creative work.
Embodiment 5:
The present embodiment is on the basis of embodiment 1, functional module is defined as displacement and triggers shutter module, displacement triggers shutter module and adopts X-band microwave radar module to carry out the motion of inspected object, and then the automatic candid photograph enabling general camera realize moving object, and the candid photograph effect obtained is very good.The X-band microwave radar module mentioned in the present embodiment is current existing mature modules, application is all had in fields such as automatic door control, the controls of ATM withdrawal machine automatic video recording, the present embodiment only needs to do adaptive improvement to the interface of this module and can connect with cable release of the present invention, thus realize capturing well to the object of motion, and obtain desirable candid photograph effect.
Embodiment 6:
The present embodiment is on the basis of embodiment 1, functional module is defined as Time-delayed trigger shutter module, Time-delayed trigger shutter module comprises single-chip microcomputer, display and keyboard, the output terminal of keyboard connects the input end of single-chip microcomputer, the input end of display connects the output terminal of single-chip microcomputer, and keyboard is for setting the time delay interval time, and display is for showing time delay interval time and the triggering times of input, the present embodiment also comprises microswitch, and microswitch is used as the backlight switch of display.
As preferably, the single-chip microcomputer of the present embodiment adopts STC89C82, and it has 40 pins, and single-chip microcomputer adopts 12MHz crystal oscillator, and is whole module for power supply with lithium battery, and the model of display is LCD1602, and keyboard is membrane keyboard.Can be found by test, the Time-delayed trigger shutter module that the present embodiment adopts can make the stable triggering of camera, during for actual photographed, good shooting effect can be obtained, meanwhile, owing to can as required by membrane keyboard input time delay interval time, and be presented on LCD1602, thus the correlation circumstance of time delay can be understood very intuitively, operability is stronger.
The above is only preferred embodiment of the present invention, and not do any pro forma restriction to the present invention, every any simple modification, equivalent variations done above embodiment according to technical spirit of the present invention, all falls within protection scope of the present invention.
Claims (7)
1. a camera can expand cable release, comprise cable release plug, switch S 1 and switch S 2, switch S 1 is in parallel with switch S 2, it is characterized in that: also comprise the expansion interface for functional module being accessed cable release, described expansion interface is connected in parallel on the two ends of switch S 1.
2. a kind of camera according to claim 1 can expand cable release, it is characterized in that: described expansion interface is USB interface, the first pin of this USB interface be externally fed just, crus secunda be internal cell charging just, tripod is trigger pip pin, and the 4th pin is publicly.
3. a kind of camera according to claim 1 can expand cable release, it is characterized in that: described functional module is that thunder and lightning triggers shutter module, described thunder and lightning triggers shutter module and comprises photoresistance R1, current-limiting resistance R2, potentiometer R3 and triode T1, the one termination power VCC of described photoresistance R1, one of them fixed contact of another termination potentiometer R3, the base stage of triode T1 is connected on after the moving contact serial connection current-limiting resistance R2 of potentiometer R3, the grounded emitter of triode T1, the delivery outlet of thunder and lightning triggering shutter module is connected on the collector of triode T1.
4. a kind of camera according to claim 1 can expand cable release, it is characterized in that: described functional module is ultraviolet thunder and lightning trigger module, described ultraviolet thunder and lightning trigger module comprises phototriode T2, metal-oxide-semiconductor T3, shunt resistance R4, adjustable resistance R5 and cable release input port, the collector of described phototriode T2 meets power supply VCC, the emitter of phototriode T2 connects the G pole of metal-oxide-semiconductor T3, shunt resistance R4 is connected in parallel on the two ends of phototriode T2, one of them fixed contact of described adjustable resistance R5 connects the G pole of metal-oxide-semiconductor T3, another fixed contact ground connection, described cable release input port comprises cable release input port anode and cable release input port negative terminal, the D pole of cable release input port positive termination metal-oxide-semiconductor T3, the S pole ground connection of cable release input port negative terminal and metal-oxide-semiconductor T3.
5. a kind of camera according to claim 1 can expand cable release, it is characterized in that: described functional module is that displacement triggers shutter module, and described displacement triggers shutter module and adopts X-band microwave radar module to carry out the motion of inspected object.
6. a kind of camera according to claim 1 can expand cable release, it is characterized in that: described functional module is Time-delayed trigger shutter module, described Time-delayed trigger shutter module comprises single-chip microcomputer, display and keyboard, the output terminal of keyboard connects the input end of single-chip microcomputer, the input end of display connects the output terminal of single-chip microcomputer, described keyboard is for setting the time delay interval time, and display is for showing time delay interval time and the triggering times of input.
7. a kind of camera according to claim 6 can expand cable release, it is characterized in that: also comprise microswitch, and described microswitch is used as the backlight switch of display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410779574.3A CN104375361A (en) | 2014-12-17 | 2014-12-17 | Expandable cable release for camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410779574.3A CN104375361A (en) | 2014-12-17 | 2014-12-17 | Expandable cable release for camera |
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| CN104375361A true CN104375361A (en) | 2015-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410779574.3A Pending CN104375361A (en) | 2014-12-17 | 2014-12-17 | Expandable cable release for camera |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113810620A (en) * | 2020-06-13 | 2021-12-17 | 李凤义 | Shutter control method of digital shooting equipment |
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Application publication date: 20150225 |