WO2016153395A1 - Активно-импульсный телевизионный прибор - Google Patents
Активно-импульсный телевизионный прибор Download PDFInfo
- Publication number
- WO2016153395A1 WO2016153395A1 PCT/RU2016/000159 RU2016000159W WO2016153395A1 WO 2016153395 A1 WO2016153395 A1 WO 2016153395A1 RU 2016000159 W RU2016000159 W RU 2016000159W WO 2016153395 A1 WO2016153395 A1 WO 2016153395A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- television
- pulsed
- source
- television camera
- illumination
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- 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
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
- G03B15/03—Combinations of cameras with lighting apparatus; Flash units
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/51—Housings
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
Definitions
- the invention relates to dust-impermeable optoelectronic technology and can be used to observe objects at a low level of their lighting (in the presence of rain and fog, during snowfall, under water, etc.).
- An active-pulsed television device consisting of a surveillance unit comprising sequentially mounted and optically conjugated receiving lenses, an electron-optical converter (EOC), transfer optics transmitting a television camera connected to a video monitor, and a pulsed illumination unit containing I and optically coupled forming lenses and a laser emitter connected by a control input to a gate control device through a I a synchronizer connected by the first output to the control unit input, the second output to the control input E01 1 through the shutter control device, a narrow-band optical filter installed between the receiving lens and the image intensifier tube is introduced into the monitoring unit, and a reference pulse sensor is included in the pulse illumination unit, optically coupled to the laser emitter and the forming lens, in addition, a range measuring unit containing optically coupled receiving lens and photodetector is introduced into the device the output of which is connected to a threshold device, the output of a threshold device is connected to the first input of the time interval meter, the output of which is connected to
- This device is designed to observe objects at a low level of natural light and solves the problem of increasing the noise immunity and operability of the device from external background noise in the presence of bright radiation sources in the field of view.
- the disadvantage of this device is the fact that the use of a laser radiation source does not allow to obtain a color image of the observed object.
- an active-pulse television device designed to detect and monitor objects in limited visibility conditions, including in the presence of rain, snowfall, smoke, during a dust storm.
- the device contains a laser optical emitter, a transmitting lens, a narrow-band transmitting optical filter, a receiving lens, an electron-optical converter, a matching lens, a television camera (TC), a monitor, a gate pulse generator, a control unit, a TC shutter driver, a recording pulse generator, RU 2406100 C2, publ. 10.12.201 0.
- This technical solution is aimed at increasing the resolution and sensitivity of the device.
- the elements of the device are placed in a sealed enclosure containing protective glass.
- part of the luminous flux from the optical emitter is reflected from the glass surfaces and enters the camera lens (interference) along with the CBCTOBoiO part of the flux reflected from the observed object (useful luminous flux).
- the image quality of the object is significantly deteriorated due to the appearance of false contours and a decrease in contrast.
- the present invention is to improve the image quality of the observed object.
- an active-pulse television device including a housing, one of the walls of which is made with the possibility of transmitting light in which the television camera is located with the possibility of connecting it to a video monitor, and the source of pulsed illumination, to which the control unit for the source of pulsed illumination is connected, further comprises a block for selecting television signals for field synchronization, the input of which is connected to the output of the television camera, and the input of the control unit of the source of pulsed illumination, which is made in the form of one or more eustodiodes.
- FIG. 1 is a schematic sectional view of a device; in FIG. graphs showing the relationship in time between the change in the sensitivity R of the television camera and the intensity
- the active-pulse device includes a sealed case 1, one of the walls of which is equipped with a protective glass 2.
- a television camera 3 with the possibility of connecting it to the video monitor through connector 4.
- a source 5 of pulse illumination is made, made in a specific example in the form powerful LED type MCE4WT.
- the source control unit 5 is connected to the source 5 of the pulse illumination 5.
- a unit 7 for selecting the television signals for field synchronization made in a specific example based on the EP4CE 1 1 5F29C7N microcircuit.
- the input of block 7 is connected to the output of the television camera 3, and the output to the input of block 6 of the control source 5 of the pulse illumination.
- the device operates as follows.
- the control unit 6 of the source 5 of pulsed illumination generates a pulsed light flux directed at the observed object 8 through a protective glass 2.
- Part 9 of the light flux is reflected from the surfaces of the glass 2 and enters the lens of the television camera 3.
- Another part 10 of the light guide about the flux is reflected from the object 8 and passing through glass 2 also hits the lens television camera 3.
- television camera 3 mainly perceives part 1 0 of the light flux reflected from object 8. This occurs at intervals 1 1 of the operating time of television camera 3.
- the position of the light pulses in time reflects the dependence of the intensity I of the light flux on time, which is determined by the control unit 6 of the source 5 of the pulse illumination.
- Block 7 of the selection of television field signal signals extracts from the full signal at the output of the television camera 3 field synchronization pulses that coincide but with the frequency with intervals 1 2 of the insensitivity of the television camera 3.
- the signals allocated by block 7 are fed to block 6, which controls the pulse illumination source 5 in such a way that part 9 of the light flux enters the lens of the television camera 3 at an interval of 12 times its zero sensitivity, and part 10 of the light flux enters the lens of the television camera 3 in the inter al January 1st time lo normal sensitivity.
- the television camera perceives mainly the light flux reflected from the object 8.
- the result is a technical result consisting in preventing the appearance of false contours and in increasing the contrast of the image by eliminating the influence of reflections from surfaces of protective glass.
- the image quality is significantly improved.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Studio Devices (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2015110227/28A RU2589772C1 (ru) | 2015-03-23 | 2015-03-23 | Активно-импульсный телевизионный прибор |
| RU2015110227 | 2015-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016153395A1 true WO2016153395A1 (ru) | 2016-09-29 |
Family
ID=56371328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/RU2016/000159 Ceased WO2016153395A1 (ru) | 2015-03-23 | 2016-03-23 | Активно-импульсный телевизионный прибор |
Country Status (2)
| Country | Link |
|---|---|
| RU (1) | RU2589772C1 (ru) |
| WO (1) | WO2016153395A1 (ru) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6529640B1 (en) * | 1998-06-09 | 2003-03-04 | Nikon Corporation | Image processing apparatus |
| RU2406100C2 (ru) * | 2008-12-29 | 2010-12-10 | ГОУ ВПО Томский государственный университет систем управления и радиоэлектроники (ТУСУР) | Активно-импульсная телевизионная система |
| US20110279681A1 (en) * | 2010-01-27 | 2011-11-17 | Ci Systems Ltd. | Room-temperature filtering for passive infrared imaging |
| US8073321B2 (en) * | 2005-07-29 | 2011-12-06 | Cisco Technology, Inc. | Controlling an exposure time for digital cameras |
-
2015
- 2015-03-23 RU RU2015110227/28A patent/RU2589772C1/ru active
-
2016
- 2016-03-23 WO PCT/RU2016/000159 patent/WO2016153395A1/ru not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6529640B1 (en) * | 1998-06-09 | 2003-03-04 | Nikon Corporation | Image processing apparatus |
| US8073321B2 (en) * | 2005-07-29 | 2011-12-06 | Cisco Technology, Inc. | Controlling an exposure time for digital cameras |
| RU2406100C2 (ru) * | 2008-12-29 | 2010-12-10 | ГОУ ВПО Томский государственный университет систем управления и радиоэлектроники (ТУСУР) | Активно-импульсная телевизионная система |
| US20110279681A1 (en) * | 2010-01-27 | 2011-11-17 | Ci Systems Ltd. | Room-temperature filtering for passive infrared imaging |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2589772C1 (ru) | 2016-07-10 |
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