CN1800832A

CN1800832A - Laser pre-warning induction device

Info

Publication number: CN1800832A
Application number: CN 200510003652
Authority: CN
Inventors: 曾国铭; 洪格中; 丁灵俪
Original assignee: Acer Inc
Current assignee: Acer Inc
Priority date: 2005-01-07
Filing date: 2005-01-07
Publication date: 2006-07-12

Abstract

The laser prewarning sensing device comprises: a body with a top holder, a base, and a light cover unit around the holder and base that has a first cover with a plurality of slits and a second cover on the first one with a plurality opposite windows, both the slits and windows used to limit the angle of incidence laser; a light-sensing system with a plurality of sensors fixed on light cover unit to sense the incidence laser; and an alarm system to receive the signal from the light-sensing system and send alarm.

Description

Laser pre-warning induction device

Technical field

The present invention relates to a kind of prior-warning device, particularly relate to a kind of laser pre-warning induction device.

Background technology

On modern battlefield, the development of laser system and application are more and more wider, all playing the part of important role afield such as laser range finder, laser pointer device, rider guiding etc., these laser systems are used in accurately at large and find range, guiding etc. is used, and can reach the function that concentrate firepower, a blow must kill.

With respect to popularizing of laser technology, the laser pre-warning system provides sufficient early warning of military unit and antagonism.It can detect laser ranging and guide attack, and provides orientation, distance and attack kind etc. to threaten the source relevant informations, makes that the enemy's situation on the battlefield is grasped more raising.

Yet, the opticator of known laser pre-warning system, the binding of general each inter-module is the locking by screw, owing to relate to complicated optical alignment work, in the logistics maintenance, after the soldier is with disassembly, cleaning of laser pre-warning system and maintenance, be difficult to independent opticator is located and make up, must the optical correction problem of complexity could be solved with extra help, in addition, the locking of screw also causes easily and produces deformation between optical module, for fast changing battlefield, and the known laser pre-warning of this kind system, not only maintenance is difficult for, maintenance efficiency is not high, solves complicated optical correction problem especially to the consumption and the burden of manpower and resource such as rectify an instrument.

Summary of the invention

Therefore, purpose of the present invention is promptly providing a kind of maintenance laser pre-warning induction device easily.

Another object of the present invention is promptly providing a kind of laser pre-warning induction device that does not need complicated optical correction.

So laser pre-warning induction device of the present invention comprises a body, a photoinduction system and a caution system.Body has a footstock, a base and is located on the light shield unit between footstock and base, and the light shield unit has one first cover and around second cover that is fixed in first cover, and second cover offers a plurality of windows, and first cover has the slit of a plurality of corresponding windows.The photoinduction system has a plurality of inductors that are fixed in the light shield unit, in order to the induction incident laser.Caution system can receive the signal that is produced by the photoinduction system and send caution.

Description of drawings

Fig. 1 is a three-dimensional exploded view, and a preferred embodiment of laser pre-warning induction device of the present invention is described;

Fig. 2 is a side sectional view of this preferred embodiment;

Fig. 3 is a synoptic diagram of this preferred embodiment, illustrates that incident laser enters via a plurality of windows;

Fig. 4 is a synoptic diagram of this preferred embodiment, illustrates that incident laser enters via a column prism; And

Fig. 5 is a part of cut-open view of this preferred embodiment.

The reference numeral explanation:

1 ... body

2 ... the photoinduction system

3 ... caution system

4 ... protective cover

11 ... footstock

12 ... base

13 ... the light shield unit

14 ... Jing Gai

15 ... the column prism

16 ... lens

17 ... airtight space

21 ... circuit board

22 ... inductor

211 ... electronic circuit

111 ... the light shield loam cake

112 ... the collar

113 ... bucker

131 ... first cover

132 ... second cover

133 ... the 3rd cover

134 ... the 4th cover

135 ... assisted parts

136 ... window

137 ... slit

138 ... breach

139 ... optical gate

130 ... optical filter

Embodiment

About aforementioned and other technology contents, characteristics and effect of the present invention, in detailed description, can clearly present below in conjunction with reference to the accompanying drawings a preferred embodiment.

Consult Fig. 1 and Fig. 2, the preferred embodiment of laser pre-warning induction device of the present invention is applicable to detecting one threat source (figure does not show) emitted laser, and device comprises a body 1, a photoinduction system 2, a caution system 3 and a protective cover 4.

Body 1 has a footstock 11, a base 12, a light shield unit 13, mirror lid 14, one column prism 15 and lens 16.Light shield unit 13 is located between footstock 11 and the base 12, and have one first cover 131, and be positioned at the 4th cover 134 that first cover 131 encloses around second cover 132, of first cover 131 between first cover, 131 and second cover the 3rd between 132 cover 133 and, these covers 131～134 are all made by light-proof material.The bottom of first cover 131 is outward extended with the assisted parts 135 of a stepped appearance, be connected with second cover the 132 and the 3rd cover, 133 bottoms respectively, second cover 132 that is positioned at outermost offers a plurality of windows 136, first cover 131 offers the slit 137 of a plurality of corresponding windows 136, and the 3rd cover 133 breach 138 that offer a plurality of connection windows 136 and slit 137 is appeared, the three matches, angle in order to the restriction incident laser, in the present embodiment, be to utilize a plurality of optical gates 139 that are arranged at first cover 131 to form slit 137 designs, so not as limit, preferably, each optical gate 139 contiguous the 4th covers 134 place is pasted with an optical filter 130.

Footstock 11 has an annular light shield loam cake 111, and is located at the bucker 113 that the collar 112 and that encloses in the light shield loam cake 111 can be locked in the collar 112 light shield loam cake 111.Light shield loam cake 111 glues together with 133 contrapositions of first cover, 131, second cover the 132 and the 3rd cover respectively.Mirror lid 14 is arranged at footstock 11 top relatively, column prism 15 between mirror lid 14 and 11 of footstocks and with mirror lid 14 gummeds, lens 16 are fixed in the collar 112 central authorities by screw, and can seal the airtight space 17 that footstock 11, base 12 and light shield unit 13 form, bucker 113 is positioned at the periphery of the collar 112, by the mode that screws togather with light shield loam cake 111 collar 112 is fixed in light shield loam cake 111.

Photoinduction system 2 has a plurality of circuit boards 21 and a plurality of inductor 22 that is electrically connected with circuit board 21, inductor 22 is arranged at the 4th cover 134 corresponding slits 137 places respectively, convert electric signal in order to the induction incident laser and with light signal, and electrical signal transfer to 134 on circuit board 21, the four cover is locked on first cover 131 admittedly by screw.Each circuit board 21 has an electronic circuit 211 (consulting Fig. 4), and its function is signal Processing or power supply supply etc.What need be illustrated especially is, in the present embodiment, side 360 degree of body 1 is divided into eight equal portions, offer window 136 every 45 degree, then the number of the inductor of Pei Heing is 8 respectively, makes the maximum parsing angle of laser pre-warning induction device of the present invention be about 22.5 degree, is noted that, number is very few, it resolves the angle will be too big, can't reach the purpose of accurate detecting, and number is too much, the volume of body 1 will be big to strain, can't satisfy demand compact in the war.

Caution system 3 is electrically connected with photoinduction system 2, can receive the signal that photoinduction system 2 sends and send caution, caution can be flash of light or buzzing etc., not as limit, what be illustrated is, caution system 3 can be signal and the caution that reception is sent by electronic circuit 211, yet also can use blocking effect, not as limit.

Protective cover 4 is the circular cover body of an aluminium alloy, usual the time, is covered on outside the body 1, can prevent the invasion of rainwater or dust, when the laser that uses detecting threat source to send, then protective cover 4 is removed, and the window 136 of body 1 is exposed.

Consult Fig. 3 and Fig. 4, the laser that sends by the threat source, its angle is the person between the angle of depression 20 degree and the elevation angle 80 degree, can enter via the window 136 of second cover 132, and the 3rd cover 133 and first cover 131 surperficial cars have screw thread, in order to reduce the reflection and the dropping fire of light beam, follow mating plate 130 after filtration, in order to remove noise and the laser of receiving wave range between 0.4 to 1.7 micron, last remaining laser is mapped on the inductor 22 (consulting Fig. 1), and inductor 22 converts light signal to electric signal and reaches electronic circuit 211, reaches caution system 3 (consulting Fig. 2) via circuit board 21 again, send alert news, reach the function of early warning.In addition, by air-supported threat source emitted laser, arrive column prism 15 through ground return, but the mirror of its top lid 14 limited angular are spent to the light between 13 degree between the angle of depression 7 and just can be entered, the light of all the other angles then is blocked outside mirror lid 14 because incident angle is too big, the laser that enters is via the reflection and the refraction of column prism 15, and the focusing of lens 16, light path is bent to the airtight space 17 of body 1, cooperate a plurality of inductors 22 and circuit board 21 that are fixed in airtight space 17 bottoms, reach the function of early warning.In the present embodiment, the lens 16 that use are Fresnel Lenses (Fresnel Lens), and its function is to focus on.

Consult Fig. 5, first cover, 131, second cover the 132, the

3rd cover

133 and 111 of light shield loam cakes through precisions to behind the bit motion, link and fixing in the mode of gummed, that is the gummed finish after, the angle of each window 136, breach 138 and slit 137 (consulting Fig. 3) is a positioning and fixing, and the angle that does not backward need to do again other is noted that especially to bit motion, optical gate 139 also is to link with the gummed mode and first cover 131, makes the airtight effect of airtight space 17 that reaches.

In sum, laser pre-warning induction device of the present invention, good parsing angle is not only arranged, its light shield unit 13 combines in the gummed mode with light shield loam cake 111, not only can make the logistics maintenance very convenient, do not worry complicated optical correction problem yet, very big benefiting arranged for the modern military action of paying attention to efficient.

But it is described above, it only is preferred embodiment of the present invention, certainly can not limit scope of the invention process with this, promptly the simple equivalent of being done according to the scope and the invention description content of claims of the present invention generally changes and modifies, and all still belongs in the scope that patent of the present invention contains.

Claims

1. a laser pre-warning induction device is applicable to detecting laser, and this device comprises:

One body, this body has a footstock, a base, is located on the light shield unit between this footstock and this base, this light shield unit has second cover that one first cover and centers on and be fixed in this first cover, this second cover offers the slit that a plurality of windows and this first cover has a plurality of these windows of correspondence, and these windows and these slits are in order to restriction incident laser angle;

One photoinduction system, this photoinduction system have a plurality of be fixed in this light shield unit and in order to the induction incident laser inductor; And

One caution system, this caution system is electrically connected and receives the signal of this photoinduction system generation and send caution with this photoinduction system.

2. laser pre-warning induction device as claimed in claim 1 is characterized in that: this first cover and this second cover are to be made by light-proof material.

3. laser pre-warning induction device as claimed in claim 1 is characterized in that: this first cover is glued at this second cover.

4. laser pre-warning induction device as claimed in claim 3 is characterized in that: this first cover car has screw thread and gummed that the optical gate of a plurality of these windows of correspondence is arranged.

5. laser pre-warning induction device as claimed in claim 4, it is characterized in that: this light shield unit also have one between this first cover and this second cover and with the 3rd cover of this first cover gummed, the breach that the 3rd cover car has screw thread and offers these windows of a plurality of connections and these optical gates are appeared, the 3rd cover is made by light-proof material.

6. laser pre-warning induction device as claimed in claim 5, it is characterized in that: this light shield unit also has one and is fixed in four cover of this first cover away from the one side of the 3rd cover, and each inductor correspondence is installed in the 4th cover, and the 4th cover is made by light-proof material.

7. laser pre-warning induction device as claimed in claim 6 is characterized in that: contiguous the 4th cover place of each optical gate is pasted with an optical filter.

8. laser pre-warning induction device as claimed in claim 5 is characterized in that: this footstock has a light shield loam cake, and glues together with this first cover, this second cover and the 3rd cover respectively.

9. laser pre-warning induction device as claimed in claim 1 is characterized in that: this body also has the column prism of Jing Gai, between between this Jing Gai and this footstock that is arranged at this footstock top, reaches lens between between this column prism and this footstock.

10. laser pre-warning induction device as claimed in claim 9 is characterized in that: these lens are Fresnel Lenses.

11. laser pre-warning induction device as claimed in claim 9 is characterized in that: this photoinduction system also has the inductor that a plurality of receptions see through the laser of lens.

12. laser pre-warning induction device as claimed in claim 9 also includes one and is covered on the outer protective cover of this body, this photoinduction system and this caution system.

13. laser pre-warning induction device as claimed in claim 9 is characterized in that: this column prism links fixing by gummed with this Jing Gai.