CN1161651C - Self-adaptive chroma compensation illumination light source lamp for underwater camera - Google Patents
Self-adaptive chroma compensation illumination light source lamp for underwater camera Download PDFInfo
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- CN1161651C CN1161651C CNB021001863A CN02100186A CN1161651C CN 1161651 C CN1161651 C CN 1161651C CN B021001863 A CNB021001863 A CN B021001863A CN 02100186 A CN02100186 A CN 02100186A CN 1161651 C CN1161651 C CN 1161651C
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- underwater camera
- led electroluminescent
- illumination light
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Abstract
The present invention discloses a self-adaptive chroma compensation illumination light source lamp for an underwater shoot. The present invention is characterized in that a supporting frame is arranged in a compression resistant lamp box; one side of the upper part of the supporting frame is provided with an LED light emitting lamp of an array plate, and the other side is provided with a collecting mirror. A control drive circuit is arranged at the lower part in the compression resistant lamp box, the collecting mirror site of the compression resistant lamp box is provided with a compression resistant glass window, and a scene ranging sensor is arranged at the lower part in the compression resistant lamp box. The control drive circuit is respectively connected with the scene ranging sensor and the LED light emitting lamp of the array plate, wherein the control drive circuit is respectively connected with a scene ranging sensor circuit, a chromatic light ratio circuit and a memory by a microprocessor; a power amplification drive circuit is respectively connected with the chromatic light ratio circuit and the LED light emitting lamp of the array plate. The control software of an underwater shooting self-adapting chroma compensation illumination light source is arranged in the microprocessor. The automatic adjusting chroma compensation illumination light source of the present invention can obtain a color image of real underwater color during shoot, and is suitable for the illuminated requirements of a plurality of underwater places.
Description
Technical field
The invention belongs to the optical device class, relate in particular to shooting lighting and control class.
Background technology
Underwater camera is to explore geography under rivers, the ocean water.A kind of technological means that biology, physics, chemistry, mineral reserve etc. are commonly used.Common chemical analysis owing to water, particularly seawater, reasons such as light refraction, reflection, the underwater camera quality is not ideal, and the influence factor of its underwater camera quality degradation is mainly by following several aspects.
(1) absorb: because water is much bigger to the absorptance air of light, visual range approximately has only airborne 1/1000.At 100 meters below the depth of water, be exactly dark world basically.
(2) scattering: because the various particles in the water have strong scattering to light, the drizzly a slice that seems in the water, the contrast of scenery descend rapidly with the increase of distance.
(3) chromatic dispersion: because water is selectively to the scattering and the absorption of light, absorb lessly in the 440-560nm scope, and outside this scope, absorb and increase rapidly, so mortar light transmit a segment distance in seawater after, with regard to remaining green glow only basically.
(4) disturbance: because the seawater fluctuation, the refractive index of light is again with the degree of depth.Temperature, current and change are so the image in the water is often disturbed and is out of shape.Simultaneously, underwater camera is subjected to the restriction of many conditions, as: distance is near, the color colour cast.Be the needs of the aspects such as secret of exploring the ocean, at present people in the ocean underwater photography adopt often:
1. high-power white light illumination is to improve camera distance;
2. green laser illumination reaches farther shooting and measuring distance;
3. by special-purpose picture pick-up device colour cast is carried out colourity compensation in power.
Though these methods can solve partial colour shooting problem, be difficult to resolve the problem of determine colour cast and distance.
As: increase light intensity, can improve illuminance really.But because the strong scattering process of seawater, backscatter light greatly reduces the contrast of image also along with enhancing, and image seems covering the white mist original mold of one deck and sticks with paste unclear.
Secondly, because seawater is very inhomogeneous to the light absorption of different wave length, so the image of taking is all green partially, distance is far away more serious more.
Though also have the brightness of laser very high, it can produce stinking interference speckle, has a strong impact on the sharpness of image.
Simultaneously, the colourity compensation range of picture pick-up device is less, can only be suitable to certain distance.And compensation is just lost when variable in distance.Therefore the color of underwater photography, clear image etc. all can be subjected to many influences.
Summary of the invention
The light fixture that the purpose of this invention is to provide a kind of underwater camera self-adaptive chroma compensation illumination light source is to address the above problem.
The object of the present invention is achieved like this, a kind of light fixture of underwater camera self-adaptive chroma compensation illumination light source, and it is provided with support in the resistance to compression lamp box, and top one side of support is provided with array board LED electroluminescent lamp, and opposite side is provided with condenser.The bottom is provided with control Driver Circuit in the resistance to compression lamp box, the resistance to compression lamp box is positioned at the condenser place and is provided with the resistance to compression windowpane, the bottom is provided with the scenery distance measuring sensor in the resistance to compression lamp paper tinsel, and control Driver Circuit is connected with scenery distance measuring sensor and array board LED electroluminescent lamp respectively.
Described control Driver Circuit is connected with scenery distance measuring sensor circuit, coloured light ratio circuit and storer respectively by microprocessor, and the power amplification driving circuit connects to form with coloured light ratio circuit, array board LED electroluminescent lamp respectively.
Be provided with the Control Software of underwater camera self-adaptive chroma compensation illumination light source in described microprocessor and the storer, it comprises the following steps:
1. set microprocessor work mode parameter;
2. read in the acquired signal environmental parameter of scenery distance measuring sensor input.
3. special-purpose assorted database parameter in the consults memory synthesizes the running parameter that calculates the driving LED electroluminescent lamp with the environmental parameter of input scenery distance measuring sensor collection;
4. according to driving LED electroluminescent lamp running parameter, required light intensity and the colourity of drive controlling LED electroluminescent lamp emission underwater camera self-adaptive chroma compensation illumination is finished a control procedure; Get back to step 1) then again, periodic duty is until shutdown.
Because the present invention has adopted above technical scheme, its adopt colourity and intensity etc. all Be Controlled be adjusted to initiatively light source, and according to operating depth, the subject distance of underwater photography, shooting.Waters parameter etc. is set up special-purpose assorted database, automatically change the intensity of illumination and the colourity of lighting source, compensation is owing to non-uniform scattering and the absorption of water body to different chromatogram light, thereby, can obtain the color image of realistic colour under water during shooting by the self-regulating chroma compensation illumination light source of underwater camera of the present invention.Also be fit to colored shooting, the colored shooting in deep-sea, (water) down-hole shooting, diving operation, underwater construction simultaneously under water, the needs that subsea equipment maintenance, underwater robot vision system etc. are located to throw light on.
Description of drawings
Fig. 1 is the light fixture shape organigram of a kind of underwater camera self-adaptive chroma compensation illumination light source of the present invention;
Fig. 2 is the principle schematic of control Driver Circuit in the light fixture of a kind of underwater camera self-adaptive chroma compensation illumination light source of the present invention;
Fig. 3 is the light fixture Control Software program flow diagram of a kind of underwater camera self-adaptive chroma compensation illumination light source of the present invention.
Among the figure:
1, resistance to compression lamp box 2, support 3, array board LED electroluminescent lamp
3-1, red LED electroluminescent lamp 3-2, orange LED electroluminescent lamp 3-3, yellow led electroluminescent lamp
3-4, green LED electroluminescent lamp 3-5, blue led electroluminescent lamp 3-6, White LED electroluminescent lamp
4, condenser 5, control Driver Circuit 6, resistance to compression windowpane
7, depth of water sensor 8, scenery distance measuring sensor 9, microprocessor
10, scenery distance measuring sensor circuit 11, depth of water sensor circuit 12, coloured light ratio circuit
12-1, red coloured light ratio circuit 12-2, orange coloured light ratio circuit 12-3, yellow coloured light ratio circuit
12-4, green coloured light ratio circuit 12-5, blue coloured light ratio circuit 12-6, white coloured light ratio circuit
13, storer 14, power amplification driving circuit 15, power lead
Embodiment
Below in conjunction with accompanying drawing enforcement of the present invention is explained as follows:
In Fig. 1, the light fixture of underwater camera self-adaptive chroma compensation illumination light source is by resistance to compression lamp box 1, support 2, array board LED electroluminescent lamp 3, condenser 4, control Driver Circuit 5.Resistance to compression windowpane 6 and scenery distance measuring sensor 8 constitute.
Wherein, resistance to compression lamp box interior 1 can be arranged to measuring body casing shape by firm, corrosion-resistant material (as materials such as stainless steels); Its inside is provided with support 2, and top one side of support 2 is provided with array board LED electroluminescent lamp 3, and opposite side is provided with condenser 4.For strengthening illuminating effect, array board LED electroluminescent lamp 3 can be arranged to paraboloidal; It is made up of many ultra-high brightness LED electroluminescent lamps.For strengthening the lighting colour effect, the LED electroluminescent lamp can be by red, orange, yellow.The LED electroluminescent lamp of six green, blue and white look super brightness is by the synthetic array board LED electroluminescent lamp of array group.For strengthening illumination and color effect, condenser 4 can adopt bigbore condenser.The resistance to compression lamp box) is provided with control Driver Circuit 5 between inner bottom part and the support 2.
Resistance to compression lamp box 1 is positioned at condenser 4 places and is provided with resistance to compression windowpane 6.Resistance to compression windowpane 6 can adopt high-intensity transparent material (as high voltage bearing glass, polyester material etc.), is pressed in the resistance to compression lamp box through the encapsulant embedding again) windowpane day.Resistance to compression windowpane 6 can be made into one with condenser 4, and embedding is pressed in the glass window of resistance to compression lamp box 1.1 end opening that is positioned at resistance to compression windowpane 6 is provided with scenery distance measuring sensor 8 in the resistance to compression lamp box, is used to the distance of scenery of finding range, and the signal conveys scenery distance measuring sensor circuit 10 that will find range and gather.
The resistance to compression lamp box: the interior power supplys such as battery that are provided with, can not establish battery yet and establish power lead 15 in addition and supply with required power supply by above water craft.
In Fig. 2, control Driver Circuit 5 is connected with scenery distance measuring sensor circuit 10, coloured light ratio circuit 12 and storer 13 respectively by microprocessor 9; Power amplification driving circuit 14 is connected with coloured light ratio circuit 12, array board LED electroluminescent lamp 3 respectively; Scenery distance measuring sensor circuit 10 is connected with scenery distance measuring sensor 8.
In control Driver Circuit 5, microprocessor 9 can adopt CPU, DSP or single-chip microcomputer.Store supporting database parameters such as predefined special-purpose marine site, waters scattering, transmission, lighting model in the storer 13.In power amplification driving circuit 14, can adopt the VMOS power tube to amplify driving, drive signal is provided by DSP or single-chip microcomputer.Because, for shooting illumination, can not simply adopt LED display pulse modulation technique commonly used to drive, otherwise with shooting sweep frequency mismatch.Adopt simulation constant current source technology, change light intensity of all kinds and distribution by changing LED drive current and LED number.
For strengthening shooting lighting colour effect, the bottom is provided with depth of water sensor 7 in the resistance to compression lamp box 1, and it is used to measure the degree of depth of water.Simultaneously, control Driver Circuit 5 is provided with depth of water sensor circuit 11, and be connected with depth of water sensor circuit 11 and depth of water sensor 7 by the microprocessor in it 9, the microprocessor 9 of the signal conveys that its depth of water is gathered in the control Driver Circuit 5, array of controls plate LED electroluminescent lamp 3 sends fabulous underwater camera self-adaptive chroma compensation illumination light source.
For strengthening shooting lighting colour effect, LED electroluminescent lamp on the array board LED electroluminescent lamp 3 can be formed super bright array LED light source by the LED electroluminescent lamp of six red, orange, yellow, green, blue and white look super brightness, and is connected with power amplification driving circuit 14 respectively.
The present invention adopts ultra-high brightness LED, and every kind of LED covers certain spectral range, thereby stack covers whole visible spectrum.Its redness.6 kinds of orange, yellow, green, blue and white tube cores are alternate forms the array of 2 or polylith MXN.Because seawater is more much bigger than blue green light to red light absorption, so should adopt more red LED electroluminescent lamp at red spectral band.
The LED illumination not only can overcome the interference that laser lighting causes, obtain color image more clearly, and driving power is little, and luminescence efficiency is also higher.
Simultaneously, in control Driver Circuit 5, coloured light ratio circuit 12 can be made up of red coloured light ratio circuit 12-1, orange coloured light ratio circuit 12-2, yellow coloured light ratio circuit 12-3, green coloured light ratio circuit 124, blue coloured light ratio circuit 12-5 and white coloured light ratio circuit 12-6, and it also is connected with microprocessor 9 and power amplification driving circuit 14 respectively.
In the control procedure of the present invention to the underwater camera self-adaptive chroma compensation illumination light source, at first by scenery distance measuring sensor 8 or outside subject distance input signal, draw the distance of lighting source, thereby calculate the distance that coloured light arrives scenery, transmits when arriving gamma camera by scenery again that is equipped with of light source in water to the distance of scenery and scenery to video camera.Secondly, according to scattering, transmission coefficient and the specialized database in these distances and the waters degree of depth, waters, the microcontroller 9 in the control Driver Circuit 5 is obtained the attenuation coefficient that various coloured light arrive video cameras.The inverse of light attenuation coefficient of all kinds is exactly the ratio of the light intensity of all kinds that need launch of light source.The 3rd, microprocessor 9 outputs to corresponding coloured light ratio circuit 12 to the scaling signal of each coloured light, obtains drive current and the LED number of each coloured light LED.The 4th, coloured light ratio circuit 12 control LED power driving circuits drive LED of all kinds and send corresponding light intensity and colourity.What at this moment light source sent is not from light, and being has specific light intensity and colourity to distribute, after transmission in the water, being pressed different proportion by water body absorbs and scattering, when arriving video camera, just just in time the same with white light radiation response in air, reached the purpose that colourity is regulated compensation automatically.Microprocessor 9 is ceaselessly surveyed subject distance, light intensity and the colourity of sending according to condition changing light sources such as subject distance ceaselessly, adaptive equalization underwater camera colourity.
In Fig. 3, microprocessor; The Control Software of the middle underwater camera self-adaptive chroma compensation illumination light source that is provided with, it specifically comprises the following steps:
1. set the special-purpose marine site of microprocessor, waters scattering, the auxiliary work database parameter of transmission, lighting model and storage;
2. read in the setup parameter of the underwater camera self-adaptive chroma compensation illumination light source control of inputs such as scenery distance measuring sensor:
3. scenery distance measuring sensor and the subject distance of depth of water sensor acquisition and sea water advanced environmental parameter in the light fixture of input underwater camera self-adaptive chroma compensation illumination light source.
4. call the special-purpose assorted database parameter of setting in the storer of microprocessor, and and input scenery distance measuring sensor and the subject distance of depth of water sensor acquisition and sea water advanced environmental parameter, synthesize the running parameter that calculates the required brightness of illumination of driving LED electroluminescent lamp;
5. according to the running parameter that calculates driving LED electroluminescent lamp brightness of illumination, drive controlling LED electroluminescent lamp is launched the required light source of underwater camera self-adaptive chroma compensation illumination; And this Control work parameter returned the control setup parameter of input underwater camera self-adaptive chroma compensation illumination light source, finish whole control process.
Claims (4)
1. the light fixture of a underwater camera self-adaptive chroma compensation illumination light source is characterized in that, is provided with support in the resistance to compression lamp box, and top one side of support is provided with array board LED electroluminescent lamp, and opposite side is provided with condenser; The bottom is provided with control Driver Circuit in the resistance to compression lamp box, the resistance to compression lamp box is positioned at the condenser place and is provided with the resistance to compression windowpane, the bottom is provided with the scenery distance measuring sensor in the resistance to compression lamp box, and control Driver Circuit is connected with scenery distance measuring sensor and array board LED electroluminescent lamp respectively;
Described control Driver Circuit is connected with scenery distance measuring sensor circuit, coloured light ratio circuit and storer respectively by microprocessor, storer is connected with microprocessor on control Driver Circuit, and the power amplification driving circuit connects to form with coloured light ratio circuit, array board LED electroluminescent lamp respectively:
Be provided with the Control Software of underwater camera self-adaptive chroma compensation illumination light source in described microprocessor and the storer, comprise the following steps;
1) sets microprocessor work mode parameter;
2) read in the acquired signal environmental parameter that the scenery distance measuring sensor is imported;
3) special-purpose assorted database parameter in the consults memory synthesizes the running parameter that calculates the driving LED electroluminescent lamp with the environmental parameter of input scenery distance measuring sensor collection; Special-purpose assorted database is the data about sea water advanced, marine site, temperature;
4) according to driving LED electroluminescent lamp running parameter, required light intensity and the colourity of drive controlling LED electroluminescent lamp emission underwater camera self-adaptive chroma compensation illumination is finished a control procedure; Get back to step 1) then again, periodic duty is until shutdown.
2. the light fixture of a kind of underwater camera self-adaptive chroma compensation illumination light source according to claim 1 is characterized in that, the bottom is respectively arranged with depth of water sensor in the resistance to compression lamp box, and it is connected with control Driver Circuit, is used to gather, measure the depth signal of water.
3. the light fixture of a kind of underwater camera self-adaptive chroma compensation illumination light source according to claim 1, it is characterized in that, the circuit of control colourity and light intensity ratio is made up of red coloured light ratio circuit, orange coloured light ratio circuit, yellow coloured light ratio circuit, green coloured light ratio circuit, blue coloured light ratio circuit and white coloured light ratio circuit, and it is connected with the power amplification driving circuit with microprocessor respectively.
4. the light fixture of a kind of underwater camera self-adaptive chroma compensation illumination light source according to claim 1, it is characterized in that, array board LED electroluminescent lamp is made up of six red, orange, yellow, green, blue and white look LED electroluminescent lamps, and it is connected with the power amplification driving circuit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021001863A CN1161651C (en) | 2002-01-24 | 2002-01-24 | Self-adaptive chroma compensation illumination light source lamp for underwater camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021001863A CN1161651C (en) | 2002-01-24 | 2002-01-24 | Self-adaptive chroma compensation illumination light source lamp for underwater camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1367405A CN1367405A (en) | 2002-09-04 |
| CN1161651C true CN1161651C (en) | 2004-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021001863A Expired - Fee Related CN1161651C (en) | 2002-01-24 | 2002-01-24 | Self-adaptive chroma compensation illumination light source lamp for underwater camera |
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| Country | Link |
|---|---|
| CN (1) | CN1161651C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467966B (en) * | 2014-12-31 | 2017-10-24 | 中国人民解放军信息工程大学 | A kind of LED modulator approaches and system based on visible light communication |
| HK1208303A2 (en) * | 2015-10-27 | 2016-02-26 | 潛點有限公司 | An underwater photographic lighting device |
| CN106483735A (en) * | 2016-12-20 | 2017-03-08 | 福建海图智能科技有限公司 | Image capture devices under water |
| CN107329421A (en) * | 2017-06-09 | 2017-11-07 | 上海大学 | A kind of underwater photographic system |
| UA118644C2 (en) * | 2018-09-25 | 2019-02-11 | Василь Олександрович Руських | PORTABLE PORTABLE LIGHTING DEVICE FOR UNDERWATER PHOTOS AND VIDEOS |
| CN111027231B (en) * | 2019-12-29 | 2023-06-06 | 杭州科洛码光电科技有限公司 | Imaging method of underwater array camera |
| CN111586921B (en) * | 2020-06-28 | 2022-05-03 | 上海策元实业有限公司 | Nuclear power station lamp with automatic switch for lighting of water inlet and water outlet and use method |
| CN114354635B (en) * | 2022-01-18 | 2023-03-24 | 深圳市乐惠光电科技有限公司 | Pier crack detection system and method for improving illumination light source |
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2002
- 2002-01-24 CN CNB021001863A patent/CN1161651C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1367405A (en) | 2002-09-04 |
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