CN200959046Y - Infrared radiant light-source diffuser and monitoring camera appliances therewith - Google Patents
Infrared radiant light-source diffuser and monitoring camera appliances therewith Download PDFInfo
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- CN200959046Y CN200959046Y CN 200620136682 CN200620136682U CN200959046Y CN 200959046 Y CN200959046 Y CN 200959046Y CN 200620136682 CN200620136682 CN 200620136682 CN 200620136682 U CN200620136682 U CN 200620136682U CN 200959046 Y CN200959046 Y CN 200959046Y
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Abstract
The utility model discloses an infrared laser light dispersion device, which comprises a first pair convex lens, a second pair concave lens, a third convex concave lens and a fourth pair convex lens; wherein light source side curvature radius of the first pair convex lens is larger that of the rays casting side; light source side curvature radius of the second pair concave lens is smaller than that of the rays casting side; light source side curvature radius of the third convex concave lens is larger than that of the rays casting side; light source side curvature radius of the fourth pair convex lens is larger than that of the rays casting side. The utility model can expand a spot infrared light source to a surface projection light source far away, so as to obtain a clear image to cameras.
Description
Technical field
The utility model relates to the radium-shine light source disperser of a kind of infrared ray, especially a kind of make its radiation source can be in addition to the radium-shine light source disperser of infrared ray that extends at a distance and have the supervision apparatus for making a video recording of this device.
Background technology
At present general luminophor such as Halogen lamp LED, tungsten lamp or LED lamp, visible light that is produced or invisible light wavelength are between 200nm-1500nm, and mostly for distributing the formula light source, lighting angle is different with technology according to its different materials of making, so its transmitting range is influenced by it also, so that can't reach remote projection effect, distribute the shortcoming of formula light source projects distance at this kind, the spotlight of existing research and development spotlight effect, its characteristics are that the luminophor front end installs the mode of single convex lens additional, to reach the mode that increases the light projection distance, distribute the formula light source so adopt, the convex lens material that it adopted is made with the PC material and is got final product, and the distance projection that is increased is based on short distance (about 50 meters), the longest only reaching about 150 meters.
General household, market or company's row number are invaded and are caused the loss of personal property for fear of Burglar or other personages, can be equiped with monitoring camera mostly and carry out round-the-clock surveillance video, in case there is case to take place, image under surveillance video is recorded not only can reduce incident scene at that time, more can assist investigation with clear up a criminal case early.
Usually, the surveillance video system is in order to carry out surveillance video at night or the bad place of light, how can around phtographic lens, be provided with the light source projects system, or be called the secondary light source system, this system is made up of general bulb the earliest, but because its power consumption is big and bulky, the LED (light emitting diode) that now uses low power consuming gradually and have a high brightness is used as light source, yet the light that existing LED sent is dispersion shape, therefore can't shine place far away.That is to say, from camera chain place far away can because insufficient light and clearly image be sent to monitoring image via video camera, so, also difficultly judge incident truth at that time by the image under recording even if under should monitoring that image was recorded.
In addition, at present generally be used for PowerPoint or meeting is carried out allowing the audience gaze at the projection pen that main points are used in order to sign in symposial, it can launch infrared radium-shine photoelectricity, though this luminous point can project place extremely far away, but because luminous point is too concentrated, can't be spread on whole property ground, therefore this kind equipment is applied in light source, can't allow the All Ranges of monitoring image reach sufficient requirement as surveillance.
Summary of the invention
The purpose of this utility model is to provide a kind of use monitoring photographic goods, can make its radiation source in addition to the radium-shine light source disperser of infrared ray that extends at a distance.
For achieving the above object, the radium-shine light source disperser of infrared ray of the present utility model, first biconvex lens that comprises orderly arrangement, second biconcave lens, the 3rd concave-convex lens and the 4th biconvex lens, wherein the light source side radius-of-curvature of this first biconvex lens is greater than the radius-of-curvature of ray cast side, the light source side radius-of-curvature of this second biconcave lens is less than the radius-of-curvature of ray cast side, the light source side radius-of-curvature of the 3rd concave-convex lens is greater than the radius-of-curvature of ray cast side, and the light source side radius-of-curvature of the 4th biconvex lens is greater than the radius-of-curvature of ray cast side.
Application as the radium-shine light source disperser of above-mentioned infrared ray, the utility model also provides a kind of supervision apparatus for making a video recording with the radium-shine light source of infrared ray, it comprises radium-shine light source transmitter of an infrared ray and the radium-shine light source disperser of above-mentioned infrared ray, and the radium-shine light source disperser of this infrared ray is positioned at a side of the radium-shine light source transmitter of this infrared ray.
Utilize said lens group combination of the present utility model, thereby the point source of light of infrared light sources can be spread towards a distant place and become planar projection source, therefore can allow video camera place at a distance also be subjected to enough irradiate light, so that video camera obtains image clearly.
Because the utility model adopts the luminophor of radium-shine laser, has the unexistent characteristic of general light source, its light harvesting is good, the energy density height, and spectral width is narrow, its light is parallel beam, the directive property height still can be kept the tiny light velocity and do not scatter the common radium-shine light pen or the light beam of stage show after long distance, be the radium-shine laser of visible light, though still can keep tiny light beam and do not scatter through long distance projection.
In addition, characteristic because of laser light, the radium-shine laser of infrared ray is applied to night monitoring, though directly restrainting light, it can grow the distance projection, but its crevice projection angle is too small and be easy to generate the burning-point that makes the human injury, and the utility model efficiently solves this kind problem, and it can not damage human body again when increasing the projection visual angle.
Description of drawings
Fig. 1 is the radium-shine light source disperser of the new infrared ray of this a practicality structural representation;
Fig. 2 is the index path that the radium-shine light source of infrared ray passes the radium-shine light source disperser of the utility model infrared ray.
Embodiment
The radium-shine light source disperser of infrared ray of the present utility model mainly is the combination by four lens, and allowing the point source of light of infrared light sources spread towards a distant place whereby becomes planar projection source.Below in conjunction with accompanying drawing and embodiment, describe structure of the present utility model and principle of work in detail.
As shown in Figure 1, the radium-shine light source of infrared ray of the present utility model, first biconvex lens 10 that comprises orderly arrangement, second biconcave lens 11, the 3rd concave-convex lens 12 and the 4th biconvex lens 13, four lens 10,11,12,13 comprise light source side and ray cast side respectively, wherein the light source side radius-of-curvature of this first biconvex lens 10 is greater than the radius-of-curvature of ray cast side, the light source side radius-of-curvature of this second biconcave lens 11 is less than the radius-of-curvature of ray cast side, the light source side radius-of-curvature of the 3rd concave-convex lens 12 is greater than the radius-of-curvature of ray cast side, and the light source side radius-of-curvature of the 4th biconvex lens 13 is greater than the radius-of-curvature of ray cast side.
As an embodiment of the present utility model, the light source side radius-of-curvature of first biconvex lens 10 is 18.25mm～48.42mm, be preferably 18.25mm, and the radius-of-curvature of ray cast side is 4.19mm～21.14mm, be preferably 4.19mm, its center thickness is 3.37mm～3.95mm, is preferably 3.4mm; The light source side radius-of-curvature of second biconcave lens 11 is 10.1mm～14.55mm, is preferably 12.59mm, and the radius-of-curvature of ray cast side is 19.91mm～45.54mm, is preferably 39.06mm, and center thickness is 1.85mm～3.85mm, is preferably 3.85mm; The light source side radius-of-curvature of the 3rd concave-convex lens 12 is 35.22mm～68.31mm, is preferably 68.31mm, and the radius-of-curvature of ray cast side is 14.04mm～20.42mm, is preferably 16.7mm, and its center thickness is 1.01mm～3.47mm, is preferably 3.45mm; The light source side radius-of-curvature of the 4th biconvex lens is 47.63mm～154.85mm, is preferably 154.85mm, and the radius-of-curvature of ray cast side is 15.12mm～22.75mm, is preferably 22.75mm, and center thickness is 3.5mm～4.91mm, is preferably 3.5mm.In addition, distance between the ray cast side of first biconvex lens 10 and the light source side of second biconcave lens 11 is 3.32mm ± 0.1mm～4.2mm ± 0.1mm, be preferably 3.32mm ± 0.1mm, distance between the ray cast side of second biconcave lens 11 and the 3rd concave-convex lens 12 is 5.96mm ± 0.1mm～7.76mm ± 0.1mm, be preferably 5.96mm ± 0.1mm, distance between the light source side of the 3rd concave-convex lens 12 and the 4th biconvex lens 13 is 5.01mm ± 0.1mm～5.94mm ± 0.1mm, is preferably 5.45mm ± 0.1mm.
Certainly, the foregoing description data of the present utility model also can adopt other suitable parameters, and this also should be within protection domain of the present utility model.
As shown in Figure 2, the radium-shine light source disperser of infrared ray of the present utility model can be arranged on the supervision equipment (figure does not show) with the radium-shine light source 20 of infrared ray, this supervision equipment comprises that one produces the radium-shine light source transmitter of infrared ray (figure does not show) of radium-shine light source 20, the radium-shine light source disperser of this infrared ray is positioned at a side of the radium-shine light source transmitter of infrared ray, in use, the radium-shine light source of infrared ray 20 elder generations are by the light source side incident of first biconvex lens 10, can be via first biconvex lens, 10 back light by ray cast side diffusion projection, and become the shape light source that looses, should loose shape light source via second biconcave lens 11 after, cross-diffusion and towards the projection of the 3rd concave-convex lens 12, converging whole is parallel flat light source, reach the effect that optically focused amplifies via the 4th biconvex lens 13 again, final formation can be towards the planar light of remote projection.
Understand easily, the radium-shine light source disperser of infrared ray of the present utility model does not limit on the light source that is used in camera chain, the illumination searchlighting equipment that it also can be used for places such as coast defence, border, prison, the laser light of single-point can be diffused into equally can be towards the planar throw light of distant place projection.
The utility model is different from the spotlight effect of the existing alternate manner luminophor that " distributes formula ", and its difference is:
1, distribute the formula luminophor and need adopt collector lens, and the present invention is a diverging lens;
2, distribute the collector lens of formula luminophor, adopt plastic material get final product, radium-shine laser of the present utility model is because of its optically-active characteristic, so palpus employing glass lens has optical property preferably than glass lens, and more is not subjected to the influence of environment temperature, humidity and is out of shape;
3, the pass of distributing formula luminophor and collector lens is to shorten both distances under the point of fixity forward, can increase lighting angle, transmission is shortened apart from meeting, if increase its both apart from the time, though the limited increase projection distance of meeting, but can dwindle its lighting angle, and the radium-shine laser of the utility model and diffusion mirror concern its principle and above-mentioned opposite.
In sum, utilize said lens group combination of the present utility model, become planar projection source thereby the point source of light of infrared light sources can be spread towards a distant place, therefore can allow video camera place at a distance also be subjected to enough irradiate light, so that video camera obtains image clearly.
Claims (7)
1, the radium-shine light source disperser of a kind of infrared ray is characterized in that, comprises first biconvex lens, second biconcave lens, the 3rd concave-convex lens and the 4th biconvex lens of orderly arrangement, wherein:
The light source side radius-of-curvature of described first biconvex lens is greater than the radius-of-curvature of ray cast side;
The light source side radius-of-curvature of described second biconcave lens is less than the radius-of-curvature of ray cast side;
The light source side radius-of-curvature of described the 3rd concave-convex lens is greater than the radius-of-curvature of ray cast side; And,
The light source side radius-of-curvature of described the 4th biconvex lens is greater than the radius-of-curvature of ray cast side.
2, the radium-shine light source disperser of infrared ray as claimed in claim 1, it is characterized in that, the light source side radius-of-curvature of described first biconvex lens is 18.25mm～48.42mm, and the radius-of-curvature of ray cast side is 4.19mm～21.14mm, and center thickness is 3.37mm～3.95mm.
3, the radium-shine light source disperser of infrared ray as claimed in claim 2, it is characterized in that, the light source side radius-of-curvature of described second biconcave lens is 10.1mm～14.55mm, and the radius-of-curvature of ray cast side is 19.91mm～45.54mm, and center thickness is 1.85mm～3.85mm.
4, the radium-shine light source disperser of infrared ray as claimed in claim 3, it is characterized in that, the light source side radius-of-curvature of described the 3rd concave-convex lens is 35.22mm～68.31mm, and the radius-of-curvature of ray cast side is 14.04mm～20.42mm, and its center thickness is 1.01mm～3.47mm.
5, the radium-shine light source disperser of infrared ray as claimed in claim 4, it is characterized in that, the light source side radius-of-curvature of described the 4th biconvex lens is 47.63mm～154.85mm, and the radius-of-curvature of ray cast side is 15.12mm～22.75mm, and center thickness is 3.5mm～4.91mm.
6, the radium-shine light source disperser of infrared ray as claimed in claim 5, it is characterized in that, distance between the ray cast side of described first biconvex lens and the light source side of described second biconcave lens is 3.32mm ± 0.1mm～4.2mm ± 0.1mm, distance between the ray cast side of described second biconcave lens and described the 3rd concave-convex lens is 5.96mm ± 0.1mm～7.76mm ± 0.1mm, and the distance between the light source side of described the 3rd concave-convex lens and described the 4th biconvex lens is 5.01mm ± 0.1mm～5.94mm ± 0.1mm.
7, a kind of supervision photographic goods, comprise the radium-shine light source transmitter of an infrared ray, it is characterized in that this equipment also comprises the radium-shine light source disperser of infrared ray as claimed in claim 1, the radium-shine light source disperser of this infrared ray is positioned at a side of the radium-shine light source transmitter of described infrared ray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620136682 CN200959046Y (en) | 2006-09-22 | 2006-09-22 | Infrared radiant light-source diffuser and monitoring camera appliances therewith |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620136682 CN200959046Y (en) | 2006-09-22 | 2006-09-22 | Infrared radiant light-source diffuser and monitoring camera appliances therewith |
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| Publication Number | Publication Date |
|---|---|
| CN200959046Y true CN200959046Y (en) | 2007-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200620136682 Expired - Fee Related CN200959046Y (en) | 2006-09-22 | 2006-09-22 | Infrared radiant light-source diffuser and monitoring camera appliances therewith |
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| CN (1) | CN200959046Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727498A (en) * | 2013-12-31 | 2014-04-16 | 王东宇 | Infrared laser luminous module |
| CN104459958A (en) * | 2014-12-27 | 2015-03-25 | 湖南长步道光学科技有限公司 | Prime lens used for infrared camera |
| CN104459837A (en) * | 2014-11-18 | 2015-03-25 | 南京联河讯光电科技有限责任公司 | Second lens for minitype combined optical system |
| CN108267849A (en) * | 2018-01-10 | 2018-07-10 | 佛山华国光学器材有限公司 | A kind of remote zoom system, pancreatic system of big zoom ratio and laser illumination system |
| CN111175137A (en) * | 2019-10-19 | 2020-05-19 | 安徽磐彩装饰工程有限公司 | Porous thermal insulation material pressure test device |
-
2006
- 2006-09-22 CN CN 200620136682 patent/CN200959046Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727498A (en) * | 2013-12-31 | 2014-04-16 | 王东宇 | Infrared laser luminous module |
| CN104459837A (en) * | 2014-11-18 | 2015-03-25 | 南京联河讯光电科技有限责任公司 | Second lens for minitype combined optical system |
| CN104459958A (en) * | 2014-12-27 | 2015-03-25 | 湖南长步道光学科技有限公司 | Prime lens used for infrared camera |
| CN104459958B (en) * | 2014-12-27 | 2017-05-03 | 湖南长步道光学科技有限公司 | Prime lens used for infrared camera |
| CN108267849A (en) * | 2018-01-10 | 2018-07-10 | 佛山华国光学器材有限公司 | A kind of remote zoom system, pancreatic system of big zoom ratio and laser illumination system |
| CN108267849B (en) * | 2018-01-10 | 2020-07-28 | 佛山华国光学器材有限公司 | Large-zoom-ratio remote zooming system and laser lighting system |
| CN111175137A (en) * | 2019-10-19 | 2020-05-19 | 安徽磐彩装饰工程有限公司 | Porous thermal insulation material pressure test device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071010 Termination date: 20110922 |