CN2760558Y - Light source for sky screen target - Google Patents
Light source for sky screen target Download PDFInfo
- Publication number
- CN2760558Y CN2760558Y CNU2004200863402U CN200420086340U CN2760558Y CN 2760558 Y CN2760558 Y CN 2760558Y CN U2004200863402 U CNU2004200863402 U CN U2004200863402U CN 200420086340 U CN200420086340 U CN 200420086340U CN 2760558 Y CN2760558 Y CN 2760558Y
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- light source
- light
- canopy
- light emitting
- target
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Abstract
The utility model discloses a light source for a sky screen target, which is used for measuring the first speed of bullets of various calibers. The light source for a sky screen target comprises a casing which is arranged on a frame and is formed by an upper cover plate provided with a light transmission plate and a lower cover plate provided with the light transmission plate; the lower cover plate which is arranged on the back end of the light transmission plate arranged inside the casing is provided with an arc light emitting array which is composed of straight-line light emitting modules. Because a light source of the utility model is composed of the arc light emitting array, light emitted by the light source presents a cone shape, and the light is consistent with the visual field of a sky screen target of a sector area with a view an angle of 24 DEG; consequently, a light screen formed by the light which is radiated on an optoelectronic device of the sky screen target and plays function is inosculated with the viewing field of the sky screen target. When the light source for a sky screen target is used indoors, the accuracy of speed measurement of a light curtain formed by the utility model is higher.
Description
Technical field
The utility model relates to the velocity test field of bullet, particularly a kind of canopy of the heavens target light source of measuring various bore velocity of shot.
Background technology
In the development and production of weaponry, gun muzzle initial velocity often is a key parameter of check.In the velocity of shot fields of measurement a series of testing tools and equipment have been arranged, comparatively commonly used is the common velocity-measuring system of forming of canopy of the heavens target and time-measuring gauge.At present, domestic nearly all target range is all using canopy of the heavens target to test the speed.
Canopy of the heavens target be a kind of be background with the sky, when bullet when target visual field, the canopy of the heavens is flown over, the luminous flux that enters camera lens has a faint variation, be installed in the variation that photoelectric tube behind the camera lens is converted into the variation of luminous flux electric signal, by the electric signal amplification shaping of signal processing circuit to faint variation, export a digital electric signal at last, on behalf of bullet, this signal pass the moment of target visual field, the canopy of the heavens.Because the work of canopy of the heavens target is the photoelectricity transforming principle, during use, the sky that must have certain brightness as a setting.If when rainy day, night or sky brightness were dark, canopy of the heavens target can't use.Situation about testing at dusk often appears in the target range, canopy of the heavens target test the speed condition limitations affect the carrying out of normal test.
Some target range according to producing needs, is moved canopy of the heavens target in the indoor or semiclosed shooting lane to and is used, and at this moment, canopy of the heavens target must be equipped with suitable artificial light source.
The invention of carrying among the Chinese patent CN 1046975A, though can solve canopy of the heavens target light source, exist brightness low, realize that difficulty is big, range also is difficult to the shortcoming of accurately demarcating.Light source is the straight line line source described in the CN 1046975A invention, do not kiss with the visual field of canopy of the heavens target and, cause practical field of view little, be difficult to use.
Summary of the invention
The purpose of this utility model is to provide a kind of luminosity height, stabilized intensity, low, the long service life of power consumption, and can solve the canopy of the heavens target light source that lacks background light source with night and can't use indoor.
For achieving the above object, the technical solution adopted in the utility model is: comprise the housing of being made up of upper cover plate that offers passing through plate and lower cover that is arranged on the framework, be characterized in that the lower cover of the rear end of passing through plate is provided with the arc light emitting array of being made up of the straight line light emitting module in the housing.
Another characteristics of the present utility model are: the straight line light emitting module comprises three end integrated voltage stabilizer LM317, connect a decoupling capacitor between 2 pin of three end integrated voltage stabilizer LM317 and the ground, be connected with resistance R 1 between 1 pin of three end integrated voltage stabilizer LM317 and 3 pin, and 1 pin of three end integrated voltage stabilizer LM317 and decoupling capacitor also are in series with light emitting diode; The chord length of the circular arc that the arc light emitting array constitutes is 1200mm; Also be provided with a clear glass on the passing through plate in the housing; The both sides of housing also are provided with mounting hole.
Because light source of the present utility model is made up of the arc light emitting array, only cone shape that light source sends, with field angle is that the visual field of canopy of the heavens target of 24 degree sector regions is consistent, therefore is mapped to the light that works on the target photoelectric device of the canopy of the heavens, and the visual field of formed light curtain and canopy of the heavens target is identical.When indoor use, the light curtain rate accuracy that forms with the utility model is higher.
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present utility model, and wherein Fig. 1 a is a front view of the present utility model, and Fig. 1 b is the partial sectional view of overlooking of the utility model Fig. 1 a;
Fig. 2 is the structural representation of the utility model arc light emitting array;
Fig. 3 is the circuit theory diagrams of the utility model straight line light emitting module 12;
Fig. 4 is that the utility model is contained on the ceiling and is used synoptic diagram with canopy of the heavens target;
Fig. 5 is that the utility model is contained on the special-purpose frame and is used synoptic diagram with canopy of the heavens target;
Fig. 6 is that the utility model is contained on the wall and is used synoptic diagram with canopy of the heavens target.
Concrete embodiment
Below in conjunction with accompanying drawing structural principle of the present utility model and principle of work are described in further detail.
Referring to Fig. 1,2, the utility model comprises the housing of being made up of upper cover plate 6 that offers passing through plate 2 and lower cover 3 11 that is arranged on the framework 4, the lower cover 3 of the rear end of passing through plate 2 is provided with the arc light emitting array that the chord length of being made up of straight line light emitting module 12 is 1200mm in the housing 11, both sides at housing 11 also are provided with mounting hole 1, can be installed in easily on ceiling, wall and the custom-designed fixed mount by mounting hole 1.For preventing that dust, water vapor from entering, cause luminescent device to damage, be embedded with a clear glass behind the passing through plate 2.
Referring to Fig. 3, straight line light emitting module 12 of the present utility model comprises three end integrated voltage stabilizer LM317, connect a decoupling capacitor between 2 pin of three end integrated voltage stabilizer LM317 and the ground, be connected with resistance R 1 between 1 pin of three end integrated voltage stabilizer LM317 and 3 pin, constituted constant-current constant-voltage circuit jointly, and 1 pin of three end integrated voltage stabilizer LM317 and decoupling capacitor also are connected with light emitting diode 10.By changing the resistance of R1, can control the size of current of the light emitting diode 10 of flowing through.Concrete computing formula is as follows.
Consider the requirement of practical situations to the self character of luminous energy and light emitting diode 10, per six light emitting diodes, 10 series connection constitute one group, the resistance of resistance R 1 is got 42 Ω, and the electric current that can calculate the every group of light emitting diode 10 of flowing through by formula is about 30mA.Light emitting diode is as luminescent device, under the driving of constant pressure and flow circuit, and the stabilized intensity that luminescent device sends, selected light emitting diode power consumption is 30mA, the life-span is 100,000 hours.The visual field of canopy of the heavens target is that a field angle is 24 ° a sector region, and therefore, light source should be done camber, so that consistent with the fan-shaped visual field of canopy of the heavens target.
Referring to Fig. 4,5,6, when concrete the use, at first by fixed orifice 1 housing 11 of the present utility model is fixed on ceiling, special racks or the wall, after turning on the power switch with screw, light source is lighted, and the light that light source sends is by the slit directive canopy of the heavens target on the passing through plate 2.
The utility model light-source structure is simple, and is easy to install and use; Power consumption is little, power saving, the camber line power consumption 0.5A@24V of formation 1m; Adopt many groups constant current constant voltage in parallel, an inefficacy does not influence other normal luminescent device work, and its stability is strong.
Claims (5)
1, canopy of the heavens target light source, comprise the housing of being made up of upper cover plate that offers passing through plate [2] [6] and lower cover [3] [11] that is arranged on the framework [4], it is characterized in that: the lower cover [3] of the rear end of the interior passing through plate of housing [11] [2] is provided with the arc light emitting array of being made up of straight line light emitting module [12] [5].
2, the canopy of the heavens according to claim 1 target light source, it is characterized in that: said straight line light emitting module [12] comprises three end integrated voltage stabilizer LM317[7], three end integrated voltage stabilizer LM317[7] 2 pin and ground between connect a decoupling capacitor [9], three end integrated voltage stabilizer LM317[7] be connected with resistance R 1[8 between 1 pin and 3 pin], and three end integrated voltage stabilizer LM317[7] 1 pin and decoupling capacitor [9] also be in series with high brightness LED [10].
3, the canopy of the heavens according to claim 1 target light source is characterized in that: the chord length of the circular arc that said arc light emitting array [5] constitutes is 1200mm.
4, the canopy of the heavens according to claim 1 target light source is characterized in that: also be provided with a clear glass on the interior passing through plate of said housing [11] [2].
5, the canopy of the heavens according to claim 1 target light source, it is characterized in that: the both sides of said housing [11] also are provided with mounting hole [1].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200863402U CN2760558Y (en) | 2004-12-08 | 2004-12-08 | Light source for sky screen target |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200863402U CN2760558Y (en) | 2004-12-08 | 2004-12-08 | Light source for sky screen target |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2760558Y true CN2760558Y (en) | 2006-02-22 |
Family
ID=36082761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200863402U Expired - Fee Related CN2760558Y (en) | 2004-12-08 | 2004-12-08 | Light source for sky screen target |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2760558Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943549A (en) * | 2010-08-03 | 2011-01-12 | 西安工业大学 | All-weather speed-measuring sky screen target |
| CN105004225A (en) * | 2015-08-11 | 2015-10-28 | 北京中意明安科技有限责任公司 | Shooting electronic target system provided with three-cambered-surface laser screen |
| CN110412308A (en) * | 2019-07-23 | 2019-11-05 | 西安工业大学 | Sky LED artificial light source device |
-
2004
- 2004-12-08 CN CNU2004200863402U patent/CN2760558Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943549A (en) * | 2010-08-03 | 2011-01-12 | 西安工业大学 | All-weather speed-measuring sky screen target |
| CN101943549B (en) * | 2010-08-03 | 2013-03-20 | 西安工业大学 | All-weather speed-measuring sky screen target |
| CN105004225A (en) * | 2015-08-11 | 2015-10-28 | 北京中意明安科技有限责任公司 | Shooting electronic target system provided with three-cambered-surface laser screen |
| CN105004225B (en) * | 2015-08-11 | 2017-06-20 | 北京中意明安科技有限责任公司 | 3 cambered surface laser curtain shooting electronics target system |
| CN110412308A (en) * | 2019-07-23 | 2019-11-05 | 西安工业大学 | Sky LED artificial light source device |
| CN110412308B (en) * | 2019-07-23 | 2021-07-02 | 西安工业大学 | LED artificial light source device for backdrop target |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |