CN203745781U - Lighting device with gradient infrared light and video camera with lighting device - Google Patents
Lighting device with gradient infrared light and video camera with lighting device Download PDFInfo
- Publication number
- CN203745781U CN203745781U CN201420132833.9U CN201420132833U CN203745781U CN 203745781 U CN203745781 U CN 203745781U CN 201420132833 U CN201420132833 U CN 201420132833U CN 203745781 U CN203745781 U CN 203745781U
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- infrared light
- lighting device
- lens
- hole
- gradual change
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- 238000003466 welding Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model relates to an optical lens, and discloses a lighting device with gradient infrared light and a video camera with the device. The lighting device comprises an installing cover, a lens which is arranged on the installing cover and an infrared light source which is arranged behind the lens. The lens is provided with an incident light surface and an emergent light surface. The incident light surface is a concave spherical surface, and the emergent light surface is a convex curved surface. Spherical surface radius R of the incident light surface meets R=A*Phi, wherein A is a constant, the value range of A is 1.2 to 7, and Phi is caliber of the incident light surface. Light energy can be distributed from an infrared light source central irradiation line to the range within a certain peripheral light field angle (0-60 degrees) according to the law of a quadratic curve with the angle of divergence arranged from the highest to the lowest; the spherical surface is selected to act as the incident light surface, the curved surface meeting the quadratic curve is selected to act as the emergent light surface, and the infrared light source can be refracted to the emergent light surface to be radiated via the incident light surface with combination of parameters of the incident light surface and the emergent light surface; and the structure is relatively energy-saving.
Description
Technical field
The utility model relates to optical lens, has related in particular to a kind of the have lighting device of gradual change infrared light and the video camera with this lighting device.
Background technology
In protection and monitor field, while using the infrared or laser lighting of LED, be used for the lens of optically focused light modulation often to adopt plano-convex lens or reflector to be used as scope to light field and the control of intensity.Limited owing to being used for the electric energy of LED of infrared illumination on watch-dog, how to improve the irradiation visual effect of LED and laser, it is the problem that constantly will grope, and the method for employing plano-convex lens or these two kinds of optically focused of reflector, it can only control the setting at light field angle, cannot solve an infrared light supply and realize simultaneously and cannot realize that in-plant light intensity is relatively weak, the relatively strong problem of light intensity at a distance, remote visual effect is unsatisfactory.No matter be therefore necessary to study a kind of can realization at a distance or the device that object nearby can be seen clearly.
Summary of the invention
The purpose of this utility model is to provide a kind of and can realizes an infrared light supply and weaken in-plant light intensity simultaneously, strengthen the lighting device with gradual change infrared light of remote light intensity and the video camera with this device, no matter realize at a distance or the effect that object nearby can be seen clearly.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
There is the lighting device of gradual change infrared light, comprise mounting cover, be arranged on the lens on mounting cover and be arranged on the infrared light supply at lens rear, on lens, there are incidence surface and exiting surface, incidence surface is the spherical of indent, the arcwall face that exiting surface is evagination, and the spherical radius R of incidence surface meets: R=A* Φ, in formula, A is constant, and the span of A is 1.2 to 7, Φ to be the bore of incidence surface.
As preferably, mounting cover is provided with mounting hole, and lens are provided with mounting edge, and lens are connected on mounting hole by supersonic welding.
As preferably, infrared light supply is infrared LED lamp, also comprises lamp plate, and infrared LED lamp is arranged on lamp plate.
As preferably, lamp plate is arranged on the position apart from the focal length 4-25MM of lens.
As preferably, lamp plate comprises left lamp board and right lamp board, between left lamp board and right lamp board, has straight joint.
As preferably, lamp plate is provided with installation through hole, and mounting cover is provided with and the pilot hole of through hole being installed being coordinated, and lamp plate is by installing being equipped with on mounting cover of through hole, pilot hole and screw.
As preferably, mounting cover is provided with through hole.
Band has the video camera of the lighting device of gradual change infrared light, and lens are arranged on video camera front, and the eyepiece of video camera is aimed at straight joint and through hole.
Infrared light supply first passes through sphere, because the curvature of sphere is the same, so light enter be mapped to lens occur refraction angle be identical, in the time that light reflects away from the exiting surface of quafric curve, the curvature that each difference of passing through due to light is cut round spot is different, so the refraction angle producing is different, utilize this principle, distribution link to light designs, a lot of light path models have been made simultaneously, being actually used in security protection light scene finds, one group of comparatively ideal smooth step distribution design scope, the bore Φ of spherical radius R and incidence surface is relevant, getting R=(1.2-7) the bore Φ of incidence surface doubly relatively has desirable security protection light scene effect.
The utility model is counted scope through the Lens Design technology of optimal design and actual product experiment, use an infrared LED lamp source or LASER Light Source, in a light field, can realize light intensity along with the increase luminous energy gradual change of the angle of spread distributes lens, it can use in safety monitoring infrared illumination; This structure can realize light from infrared light supply center illuminated line, in certain light field angle (0-60 °) scope of surrounding, by the angle of spread from dividing the energy of lighting to the weak rule with quafric curve by force; Incidence surface is selected sphere, and exiting surface is selected the arcwall face that meets quafric curve, by the parameter combinations of incidence surface, exiting surface, can make infrared light supply be refracted to exiting surface by incidence surface and outwards penetrate; And this structure is comparatively energy-conservation, it can more effectively be distributed in infrared light supply energy in a limited light field, the relatively many energy of infrared light supply are rendered to larger distance (being distributed in smaller angle), relatively less energy distribution, in in-plant light field (in being distributed in compared with wide-angle), is realized to the illumination object of relative ideal state.
Brief description of the drawings
Fig. 1 is explosive view of the present utility model.
Fig. 2 is the sectional view of lens.
Fig. 3 is the explosive view that band has the video camera of the lighting device of gradual change infrared light.
The toponym that in accompanying drawing, each number designation refers to is as follows: wherein 1-mounting cover, 2-lens, 3-incidence surface, 4-exiting surface, 5-mounting hole, 6-mounting edge, 7-left lamp board, 8-right lamp board, 9-straight joint, 10-installation through hole, 11-pilot hole, 12-through hole, 13-video camera, 14-eyepiece.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Embodiment 1
There is the lighting device of gradual change infrared light, as shown in Figure 1 to Figure 2, comprise mounting cover 1, be arranged on the lens 2 on mounting cover 1 and be arranged on the infrared light supply at lens 2 rears, on lens 2, have incidence surface 3 and exiting surface 4, the spherical that incidence surface 3 is indent, the arcwall face that exiting surface 4 is evagination, the spherical radius R of incidence surface 3 meets: R=A* Φ, and in formula, A is constant, the span of A is 1.2 to 7, Φ to be the bore of incidence surface 3.In protection and monitor field, the exiting surface 4 of lens 2 all adopts the arcwall face that meets quadratic curve equation.
Mounting cover 1 is provided with mounting hole 5, and lens 2 are provided with mounting edge 6, and lens 2 are connected on mounting hole 5 by supersonic welding.Infrared light supply is infrared LED lamp, also comprises lamp plate, and infrared LED lamp is arranged on lamp plate.
Lamp plate is arranged on the position apart from the focal length 4-25MM of lens 2.
Lamp plate comprises left lamp board 7 and right lamp board 8, between left lamp board 7 and right lamp board 8, has straight joint 9.
Lamp plate is provided with installs through hole 10, and mounting cover 1 is provided with and the pilot hole 11 of through hole 10 being installed being coordinated, and lamp plate is by installing being equipped with on mounting cover 1 of through hole 10, pilot hole 11 and screw.
Mounting cover 1 is provided with through hole 12.
Embodiment 2
Band has the video camera of the lighting device of gradual change infrared light, and as shown in Figure 3, lens 2 are arranged on video camera 13 fronts, and the eyepiece 14 of video camera 13 is aimed at straight joint 9 and through hole 12.
In a word, the foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (8)
1. there is the lighting device of gradual change infrared light, comprise mounting cover (1), be arranged on the lens (2) on mounting cover (1) and be arranged on the infrared light supply at lens (2) rear, it is characterized in that: on lens (2), have incidence surface (3) and exiting surface (4), the spherical that incidence surface (3) is indent, the arcwall face that exiting surface (4) is evagination, the spherical radius R of incidence surface (3) meets: R=A* Φ, in formula, A is constant, and the span of A is 1.2 to 7, Φ to be the bore of incidence surface (3).
2. the lighting device with gradual change infrared light according to claim 1, is characterized in that: mounting cover (1) is provided with mounting hole (5), and lens (2) are provided with mounting edge (6), and lens (2) are connected on mounting hole (5) by supersonic welding.
3. the lighting device with gradual change infrared light according to claim 1, is characterized in that: also comprise lamp plate, infrared light supply is infrared LED lamp, and infrared LED lamp is arranged on lamp plate.
4. the lighting device with gradual change infrared light according to claim 3, is characterized in that: lamp plate is arranged on the position apart from the focal length 4-25MM of lens (2).
5. the lighting device with gradual change infrared light according to claim 3, is characterized in that: lamp plate comprises left lamp board (7) and right lamp board (8), between left lamp board (7) and right lamp board (8), has straight joint (9).
6. the lighting device with gradual change infrared light according to claim 3, it is characterized in that: lamp plate is provided with installs through hole (10), mounting cover (1) is provided with and the pilot hole (11) of through hole (10) being installed being coordinated, and lamp plate is by installing being equipped with on mounting cover (1) of through hole (10), pilot hole (11) and screw.
7. the lighting device with gradual change infrared light according to claim 5, is characterized in that: mounting cover (1) is provided with through hole (12).
8. a video camera that comprises the lighting device with gradual change infrared light claimed in claim 7, is characterized in that: lens (2) are arranged on video camera (13) front, and the eyepiece (14) of video camera (13) is aimed at straight joint (9) and through hole (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420132833.9U CN203745781U (en) | 2014-03-21 | 2014-03-21 | Lighting device with gradient infrared light and video camera with lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420132833.9U CN203745781U (en) | 2014-03-21 | 2014-03-21 | Lighting device with gradient infrared light and video camera with lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203745781U true CN203745781U (en) | 2014-07-30 |
Family
ID=51345560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420132833.9U Expired - Lifetime CN203745781U (en) | 2014-03-21 | 2014-03-21 | Lighting device with gradient infrared light and video camera with lighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203745781U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11204152B2 (en) | 2019-08-15 | 2021-12-21 | Microsoft Technology Licensing, Llc | Illumination device having reflector with concave and convex symmetrical surfaces |
-
2014
- 2014-03-21 CN CN201420132833.9U patent/CN203745781U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11204152B2 (en) | 2019-08-15 | 2021-12-21 | Microsoft Technology Licensing, Llc | Illumination device having reflector with concave and convex symmetrical surfaces |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140730 |