CN201096977Y - Twilight night vision instrument - Google Patents
Twilight night vision instrument Download PDFInfo
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- CN201096977Y CN201096977Y CNU2007201295443U2007201295443U CN200720129544U CN201096977Y CN 201096977 Y CN201096977 Y CN 201096977Y CN U2007201295443U2007201295443 U CNU2007201295443U2007201295443 U CN U2007201295443U2007201295443U CN 200720129544 U CN200720129544 U CN 200720129544U CN 201096977 Y CN201096977 Y CN 201096977Y
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Abstract
The utility model relates to a glimmer light night vision device, which comprises an object lens, an eye lens, a casing body, a high voltage packet and an image enhancer. The high voltage packet adopts an oscillation zone used for changing low voltage direct current into alternating current, an electric voltage zone used for the voltage increase of the alternating current, a rectification dual voltage zone used for rectifying the dual voltage and changing into the high voltage direct current, which are mutually partitioned and are sealed. The power supply circuit of the image enhancer comprises a control display circuit, a voltage stabilizing circuit, an oscillating circuit, a booster transformer and a dual voltage rectifying circuit, wherein the control display circuit is connected with the voltage stabilizing circuit, the voltage stabilizing circuit is connected with the oscillating circuit, the oscillating circuit is connected with the booster transformer, and the booster transformer is connected with the dual voltage rectifying circuit. The glimmer light night vision device has the advantages of simple structure, convenient operation, long service life, low cost, good effect, and the glimmer light night vision device can be popularized and applied in various fields which require to be observed at night.
Description
Technical field
The utility model relates to a kind of low-light level night vision device.
Background technology
At present, the high-end product of low-light level night vision device costs an arm and a leg on the market, and ten thousand yuan/tool of the about 6-7 of price of complete machine is difficult to popularize and uses; And general low-light level night vision device, because the easily aging sparking of high voltage package, aperture of objective lens (25-35mm) less than normal and non-adjustable, a series of problems such as field angle is less than normal (5-8 °), enlargement factor little (1-2 doubly), electric current big (about 100 milliamperes) when machine uses, battery serviceable life short (about 45 minutes), contour structures are single, feasible ability of catching faint light, so it is little to observe the visual field, observing effect is poor, nearly (the nominal 100M of visual range, about actual 60M), the use cost height, hold difficulty, in the life-span short (about 3 years), influence is popularized and is used.
The utility model content
The purpose of this utility model provides a kind of with the encapsulation of power circuit subregion partition, the low-light level night vision device of not only can increase the service life but also can be connected with apparatus for making a video recording, hold conveniently, visual range is far away.
For achieving the above object, the technical solution adopted in the utility model is: a kind of low-light level night vision device comprises object lens, eyepiece, housing, high voltage package, image intensifier.It is characterized in that: described high voltage package is set to: be used for vibration district, the voltage zone that is used for AC boosting that low-voltage direct become to exchange, be used for voltage multiplying rectifier and become the rectification and voltage multiplier district of high voltage direct current, and cut off encapsulation mutually; The power circuit of described image intensifier comprises control display circuit, mu balanced circuit, oscillatory circuit, step-up transformer, voltage doubling rectifing circuit, the control display circuit is connected with mu balanced circuit, mu balanced circuit is connected with oscillatory circuit, oscillatory circuit is connected with step-up transformer, step-up transformer is connected with voltage doubling rectifing circuit, and the each several part circuit structure is:
A, control display circuit are by K switch
1, K
2, resistance R
1, R
2, R
3, light emitting diode D
1, D
2Form, wherein, K switch
1The positive pole of a termination power, K switch
1The other end through resistance R
1Light emitting diode D
1Be connected K switch with the negative pole of power supply
2The positive pole of a termination power, K switch
2The other end through parallel resistance R
2, R
3, light emitting diode D
2Be connected with the negative pole of power supply;
B, mu balanced circuit are by resistance R
4, diode D
3, the three-terminal voltage-stabilizing pipe forms, wherein, resistance R
4A termination power positive pole, resistance R
4The other end and diode D
3The LX pin of positive pole, three-terminal voltage-stabilizing pipe connect diode D
3The OUT pin of negative pole, three-terminal voltage-stabilizing pipe link together and be connected with the mid point of step-up transformer primary coil, the GND pin of three-terminal voltage-stabilizing pipe is connected with the negative pole of power supply;
C, oscillatory circuit are by triode Q
1, resistance R
5Form, wherein, triode Q
1Emitter is connected with the negative pole of power supply, triode Q
1Collector is connected triode Q with an end of the primary coil of step-up transformer
1Base stage is passed through resistance R
5Be connected with the other end of the primary coil of step-up transformer;
D, voltage doubling rectifing circuit are by capacitor C
1, C
2, C
3, C
4, diode D
3, D
4, D
5, D
6Form, wherein, diode D
3, D
4, D
5, D
6Parallel connection, diode D
3Positive pole through capacitor C
1Be connected diode D with an end of the secondary side coil of step-up transformer
4Positive pole through capacitor C
2With diode D
3The end of secondary side coil of negative pole, step-up transformer connect diode D
5Positive pole through capacitor C
3With diode D
4Negative pole, diode D
3Positive pole connect diode D
6Positive pole through capacitor C
4With diode D
5Negative pole, diode D
4Positive pole connect diode D
6Negative pole and diode D
5Positive pole connect.
Above-mentioned low-light level night vision device, the top of described housing are provided with a plurality of arc fingers and control structure.
Above-mentioned low-light level night vision device, the field angle of described object lens＞12.7 degree, magnification 〉=3.5 times.
Above-mentioned low-light level night vision device, described eyepiece place is provided with the camera connector.
Above-mentioned low-light level night vision device, described housing bottom are provided with glimmer switch, infrared light switch, tripod Connection Block.
Above-mentioned low-light level night vision device, the housing of described object lens top is provided with the infrared light power valve, is provided with LED relay indicating light (6) on the housing (4) of described eyepiece (9) top.
The beneficial effects of the utility model are:
1, adopt power circuit to be set to: to be used for low pressure and to prop up vibration district, the voltage zone that is used for AC boosting that rheology exchanges, be used for voltage multiplying rectifier and become the rectification and voltage multiplier district of high voltage direct current, and cut off encapsulation mutually.Avoid the aging sparking of high voltage package, prolong the instrument life-span to greatest extent.
2, adopt big objective lens and adjustable, field angle＞12.7 °, the optical system of magnification 〉=3.5 times strengthens the ability of catching faint light, observes the visual field and has increased 2 times, and enlargement factor improves, and visual range reaches 250M.
3, the top of employing housing is provided with a plurality of arcs fingers and controls structure, controls comfortable stable, easy to operate.
4, adopt housing bottom to be provided with glimmer switch, infrared light switch, tripod Connection Block, the housing of object lens top is provided with the infrared light power valve, both can observe light according to the visual object adjustment, can be connected with tripod again, catches stabilized image.
5, adopt the eyepiece place to be provided with the camera connector, can connect camera, take pictures.
The utility model, simple in structure, easy to operate, the life-span is long, cost is low, effective, but popularization and application is in the every field that needs night observation.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Description of drawings
Fig. 1 is the utility model structural representation
Fig. 2 is the partitioned organization block diagram of the utility model high voltage package
Fig. 3 is the electronic-circuit diagram of power circuit of the present utility model
Fig. 4 is the utility model base plane structural representation
Fig. 5 the utility model and apparatus for making a video recording syndeton synoptic diagram
Mark among the figure: 1-object lens cover 2-object lens 3-infrared light emission pipe 4-housing 5-arc finger is controlled structure 6-relay indicating light 7-eyepiece adjusting ring 8-eyepiece hood 9-eyepiece 10-high voltage package 11-tripod Connection Block 12-low-light level tube 13-battery 14-battery cover 15-object lens adjusting ring 16-camera connector 17-camera 18-camera lens 19-glimmer switch 20-infrared light switch 21-vibration district 22-voltage zone 23-rectification and voltage multiplier district 24-control display circuit 25-mu balanced circuit 26-oscillating circuit 27-step-up transformer 28-voltage doubling rectifing circuit 29-image intensifier
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3, a kind of low-light level night vision device, comprise object lens 2, eyepiece 9, housing 4, high voltage package 10, image intensifier 29, described high voltage package 10 is set to: be used for vibration district 21, the voltage zone 22 that is used for AC boosting that low-voltage direct become to exchange, be used for voltage multiplying rectifier and become the rectification and voltage multiplier district 23 of high voltage direct current, and cut off encapsulation mutually; The power circuit of described image intensifier 29 comprises control display circuit 24, mu balanced circuit 25, oscillatory circuit 26, step-up transformer 27, voltage doubling rectifing circuit 28, control display circuit 24 is connected with mu balanced circuit 25, mu balanced circuit 25 is connected with oscillatory circuit 26, oscillatory circuit 26 is connected with step-up transformer 27, step-up transformer 27 is connected with voltage doubling rectifing circuit 28, and the each several part circuit structure is:
A, control display circuit 24 are by K switch
1, K
2, resistance R
1, R
2, R
3, light emitting diode D
1, D
2Form, wherein, K switch
1The positive pole of a termination power, K switch
1The other end through resistance R
1Light emitting diode D
1Be connected K switch with the negative pole of power supply
2The positive pole of a termination power, K switch
2The other end through parallel resistance R
2, R
3, light emitting diode D
2Be connected with the negative pole of power supply;
B, mu balanced circuit 25 are by resistance R
4, diode D
3, the three-terminal voltage-stabilizing pipe forms, wherein, resistance R
4A termination power positive pole, resistance R
4The other end and diode D
3The LX pin of positive pole, three-terminal voltage-stabilizing pipe connect diode D
3The OUT pin of negative pole, three-terminal voltage-stabilizing pipe link together and be connected with the mid point of step-up transformer 27 primary coils, the GND pin of three-terminal voltage-stabilizing pipe is connected with the negative pole of power supply;
C, oscillatory circuit 26 are by triode Q
1, resistance R
5Form, wherein, triode Q
1Emitter is connected with the negative pole of power supply, triode Q
1Collector is connected triode Q with an end of the primary coil of step-up transformer 27
1Base stage is passed through resistance R
5Be connected with the other end of the primary coil of step-up transformer 27;
D, voltage doubling rectifing circuit 28 are by capacitor C
1, C
2, C
3, C
4, diode D
3, D
4, D
5, D
6Form, wherein, diode D
3, D
4, D
5, D
6Parallel connection, diode D
3Positive pole through capacitor C
1Be connected diode D with an end of the secondary side coil of step-up transformer 27
4Positive pole through capacitor C
2With diode D
3The end of secondary side coil of negative pole, step-up transformer 27 connect diode D
5Positive pole through capacitor C
3With diode D
4Negative pole, diode D
3Positive pole connect diode D
6Positive pole through capacitor C
4With diode D
5Negative pole, diode D
4Positive pole connect diode D
6Negative pole and diode D
5Positive pole connect.
The top of described housing 4 is provided with a plurality of arc fingers and controls structure 5.The field angle of described object lens 2＞12.7 degree, magnification 〉=3.5 times.The housing 4 of described object lens 2 tops is provided with infrared light power valve 3, is provided with LED relay indicating light 6 on the housing 4 above the described eyepiece 9.
As shown in Figure 4, described housing 4 bottoms are provided with glimmer switch 19, infrared light switch 20, tripod Connection Block 11.
As shown in Figure 5, described eyepiece 9 places are provided with camera connector 16.Remove eyepiece hood 8, camera connector 16 is connected on the lens barrel of eyepiece 9 and and fixes by screw thread or jump ring; Camera 17 enters the close-up photography state, and telescopic head 18 is inserted as in the camera connector.
The low-light level night vision device principle of work:
Low-light level night vision device mainly is made up of optical system (object lens 2, eyepiece 9), image intensifier 29, high voltage package 10, the faint visual light that captures by object lens 2 in the dark, after image intensifier 29 amplifies tens thousand of times, drop on system's video screen, can see enlarged image clearly by eyepiece 9.The high voltage direct current of image intensifier about by about 18KV inspires to be lighted, and high direct voltage to be the 3V direct current become through concussion exchanges, transformation is boosted, multistage rectification and voltage multiplier boosts and obtains.
The high-tension circuit calculation specifications
1, no-load voltage ratio: N=N
2/ N
1=3600/6=600
2, secondary voltage: U
1=U
0* N=3 * 600=1.8KV
3, voltage behind the rectifying and wave-filtering: U=U
1* 2
0.5=1800 * 2
0.5=2500V
4,8 grades of multiplication of voltage output no-load voltage: U
Clearancen=2500 * 8=20KV
5,8 grades of multiplication of voltage output on load voltage: U
Go out to have=20KV * 90%=18KV
6, determining of transformer secondary output coil turn:
(1), supply voltage 3V, concussion pipe tube voltage drop and transformer copper loss are obvious, suitably increase the transformer secondary output coil turn
(2), battery has pressure drop, the transformer secondary output coil turn in using
By increasing by 10%, then n=3600%x1.1 ≈ 4000
By increasing by 20%, then n=3600%x1.2 ≈ 4320
During use, open battery cover 14, put into 3V battery 13, object and observation character are observed on hand-held observation of decision employing or the tripod according to the observation; During hand-held the observation, control the finger on housing 4 tops with four fingers and control structure 5, open glimmer switch 19 with thumb, relay indicating light 6 is bright, can see green-screen by low-light shop 12; If in total darkness environment, open infrared switch 20, infrared light power valve 3 is luminous, and the active infra-red irradiator will start work this moment, and the irradiation target object strengthens the night vision device observing effect.Open lens cap 1, regulate the eyepiece adjusting ring 7 of eyepiece 9, to the most clear relatively position; Regulate the object lens adjusting ring 15 of object lens 2, until seeing sharp image.As shooting, eyepiece hood 8 is taken off, camera connector 16 is connected on the lens barrel of eyepiece 9 and and fixes by screw thread or jump ring; Camera 17 enters the close-up photography state, and telescopic head 18 is inserted as in the camera connector; Can take a picture.Observe and finish, take off camera 17 and camera connector, load onto eyepiece hood 8; Observe and finish.When utilizing tripod to observe, tripod is fixed on the tripod Connection Block 11 of night vision device bottom, its method of operating is the same.
Claims (6)
1. low-light level night vision device, comprise object lens (2), eyepiece (9), housing (4), high voltage package (10), image intensifier (29), it is characterized in that: described high voltage package (10) is set to: be used for vibration district (21), the voltage zone (22) that is used for AC boosting that low-voltage direct become to exchange, be used for voltage multiplying rectifier and become the rectification and voltage multiplier district (23) of high voltage direct current, and cut off encapsulation mutually; The power circuit of described image intensifier (29) comprises control display circuit (24), mu balanced circuit (25), oscillatory circuit (26), step-up transformer (27), voltage doubling rectifing circuit (28), control display circuit (24) is connected with mu balanced circuit (25), mu balanced circuit (25) is connected with oscillatory circuit (26), oscillatory circuit (26) is connected with step-up transformer (27), step-up transformer (27) is connected with voltage doubling rectifing circuit (28), and the each several part circuit structure is:
A, control display circuit (24) are by K switch
1, K
2, resistance R
1, R
2, R
3, light emitting diode D
1, D
2Form, wherein, K switch
1The positive pole of a termination power, K switch
1The other end through resistance R
1Light emitting diode D
1Be connected K switch with the negative pole of power supply
2The positive pole of a termination power, K switch
2The other end through parallel resistance R
2, R
3, light emitting diode D
2Be connected with the negative pole of power supply;
B, mu balanced circuit (25) are by resistance R
4, diode D
3, the three-terminal voltage-stabilizing pipe forms, wherein, resistance R
4A termination power positive pole, resistance R
4The other end and diode D
3The LX pin of positive pole, three-terminal voltage-stabilizing pipe connect diode D
3The OUT pin of negative pole, three-terminal voltage-stabilizing pipe link together and be connected with the mid point of step-up transformer (27) primary coil, the GND pin of three-terminal voltage-stabilizing pipe is connected with the negative pole of power supply;
C, oscillatory circuit (26) are by triode Q
1, resistance R
5Form, wherein, triode Q
1Emitter is connected with the negative pole of power supply, triode Q
1Collector is connected triode Q with an end of the primary coil of step-up transformer (27)
1Base stage is passed through resistance R
5Be connected with the other end of the primary coil of step-up transformer (27);
D, voltage doubling rectifing circuit (28) are by capacitor C
1, C
2, C
3, C
4, diode D
3, D
4, D
5, D
6Form, wherein, diode D
3, D
4, D
5, D
6Parallel connection, diode D
3Positive pole through capacitor C
1Be connected diode D with an end of the secondary side coil of step-up transformer (27)
4Positive pole through capacitor C
2With diode D
3The end of secondary side coil of negative pole, step-up transformer (27) connect diode D
5Positive pole through capacitor C
3With diode D
4Negative pole, diode D
3Positive pole connect diode D
6Positive pole through capacitor C
4With diode D
5Negative pole, diode D
4Positive pole connect diode D
6Negative pole and diode D
5Positive pole connect.
2. according to the described low-light level night vision device of claim 1, it is characterized in that: the top of described housing (4) is provided with a plurality of arc fingers and controls structure (5).
3. according to the described low-light level night vision device of claim 1, it is characterized in that: the field angle of described object lens (2)＞12.7 degree, magnification 〉=3.5 times.
4. according to the described low-light level night vision device of claim 1, it is characterized in that: described eyepiece (9) locates to be provided with camera connector (16).
5. according to the described low-light level night vision device of claim 1, it is characterized in that: described housing (4) bottom is provided with glimmer switch (17), infrared light switch (20), tripod Connection Block (11).
6. according to the described low-light level night vision device of claim 1, it is characterized in that: the housing (4) of described object lens (2) top is provided with infrared light power valve (3), is provided with LED relay indicating light (6) on the housing (4) of described eyepiece (9) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201295443U2007201295443U CN201096977Y (en) | 2007-08-13 | 2007-08-13 | Twilight night vision instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201295443U2007201295443U CN201096977Y (en) | 2007-08-13 | 2007-08-13 | Twilight night vision instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201096977Y true CN201096977Y (en) | 2008-08-06 |
Family
ID=39924030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201295443U2007201295443U Expired - Fee Related CN201096977Y (en) | 2007-08-13 | 2007-08-13 | Twilight night vision instrument |
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|---|---|
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048771A (en) * | 2012-12-13 | 2013-04-17 | 中国航空工业集团公司洛阳电光设备研究所 | Small light low-light-level night vision eyepiece optical system |
| CN104595733A (en) * | 2013-10-30 | 2015-05-06 | 深圳市海洋王照明工程有限公司 | Visit flashlight |
| CN104595735A (en) * | 2013-10-30 | 2015-05-06 | 深圳市海洋王照明工程有限公司 | Flashlight |
| CN104597593A (en) * | 2013-10-30 | 2015-05-06 | 深圳市海洋王照明工程有限公司 | Telescoping night vision device and view finding flashlight |
| CN105807417A (en) * | 2016-05-20 | 2016-07-27 | 四川汇英光电科技有限公司 | Low-noise low-light level night vision device for conducting investigation in large area for long time |
| CN105824115A (en) * | 2016-05-20 | 2016-08-03 | 四川汇英光电科技有限公司 | Weak-light night-vision device with low background noise |
| CN105824114A (en) * | 2016-05-20 | 2016-08-03 | 四川汇英光电科技有限公司 | Weak-light night-vision device for long-time large-area detection |
| CN105842839A (en) * | 2016-05-20 | 2016-08-10 | 四川汇英光电科技有限公司 | Military anti-strong-light low-light-level night vision device |
| CN105892035A (en) * | 2016-05-20 | 2016-08-24 | 四川汇英光电科技有限公司 | Anti-glare low-background noise low-light level night vision device for military use |
| CN106019564A (en) * | 2016-05-20 | 2016-10-12 | 四川汇英光电科技有限公司 | Improved low-light night vision device providing convenience for detection |
| CN106291905A (en) * | 2015-05-11 | 2017-01-04 | 云南北方光电仪器有限公司 | A kind of infrared front end registration apparatus with LLL image fusion |
| CN108932924A (en) * | 2017-05-25 | 2018-12-04 | 上海璞丰光电科技有限公司 | A kind of vacuum fluorescence screen power supply of novel topological structure |
| CN109600534A (en) * | 2018-11-26 | 2019-04-09 | 南京信为峰光电科技有限公司 | A kind of image intensifier tube and its assembly method of night vision system |
| CN110221423A (en) * | 2019-05-24 | 2019-09-10 | 北方夜视技术股份有限公司 | Hand-held low-light level night vision device |
| EA035224B1 (en) * | 2018-10-08 | 2020-05-18 | Общество с ограниченной ответственностью "ИРВЭЙ" | Infrared night vision system |
| CN111751976A (en) * | 2020-07-07 | 2020-10-09 | 北方夜视技术股份有限公司 | Portable low-light level night vision device with general type connection structure |
-
2007
- 2007-08-13 CN CNU2007201295443U2007201295443U patent/CN201096977Y/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103048771A (en) * | 2012-12-13 | 2013-04-17 | 中国航空工业集团公司洛阳电光设备研究所 | Small light low-light-level night vision eyepiece optical system |
| CN103048771B (en) * | 2012-12-13 | 2015-10-21 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of small light low-light-level night vision eyepiece optical system |
| CN104595733A (en) * | 2013-10-30 | 2015-05-06 | 深圳市海洋王照明工程有限公司 | Visit flashlight |
| CN104595735A (en) * | 2013-10-30 | 2015-05-06 | 深圳市海洋王照明工程有限公司 | Flashlight |
| CN104597593A (en) * | 2013-10-30 | 2015-05-06 | 深圳市海洋王照明工程有限公司 | Telescoping night vision device and view finding flashlight |
| CN104595733B (en) * | 2013-10-30 | 2020-02-18 | 深圳市海洋王照明工程有限公司 | Visit flashlight |
| CN104597593B (en) * | 2013-10-30 | 2019-02-12 | 深圳市海洋王照明工程有限公司 | Look in the distance night-vision devices and visit torch |
| CN106291905A (en) * | 2015-05-11 | 2017-01-04 | 云南北方光电仪器有限公司 | A kind of infrared front end registration apparatus with LLL image fusion |
| CN106019564A (en) * | 2016-05-20 | 2016-10-12 | 四川汇英光电科技有限公司 | Improved low-light night vision device providing convenience for detection |
| CN105842839B (en) * | 2016-05-20 | 2018-11-13 | 四川汇英光电科技有限公司 | A kind of military anti glare anti static coatings low-light level night vision device |
| CN105842839A (en) * | 2016-05-20 | 2016-08-10 | 四川汇英光电科技有限公司 | Military anti-strong-light low-light-level night vision device |
| CN105824114A (en) * | 2016-05-20 | 2016-08-03 | 四川汇英光电科技有限公司 | Weak-light night-vision device for long-time large-area detection |
| CN105824114B (en) * | 2016-05-20 | 2018-07-27 | 四川汇英光电科技有限公司 | A kind of long-time is to big area detecting low-light level night vision device |
| CN106019564B (en) * | 2016-05-20 | 2018-09-07 | 四川汇英光电科技有限公司 | A kind of modified low-light level night vision device convenient for detecting |
| CN105807417B (en) * | 2016-05-20 | 2018-09-11 | 四川汇英光电科技有限公司 | A kind of big region investigation low noise type low-light level night vision device of long-time |
| CN105892035A (en) * | 2016-05-20 | 2016-08-24 | 四川汇英光电科技有限公司 | Anti-glare low-background noise low-light level night vision device for military use |
| CN105807417A (en) * | 2016-05-20 | 2016-07-27 | 四川汇英光电科技有限公司 | Low-noise low-light level night vision device for conducting investigation in large area for long time |
| CN105824115A (en) * | 2016-05-20 | 2016-08-03 | 四川汇英光电科技有限公司 | Weak-light night-vision device with low background noise |
| CN108932924A (en) * | 2017-05-25 | 2018-12-04 | 上海璞丰光电科技有限公司 | A kind of vacuum fluorescence screen power supply of novel topological structure |
| EA035224B1 (en) * | 2018-10-08 | 2020-05-18 | Общество с ограниченной ответственностью "ИРВЭЙ" | Infrared night vision system |
| CN109600534A (en) * | 2018-11-26 | 2019-04-09 | 南京信为峰光电科技有限公司 | A kind of image intensifier tube and its assembly method of night vision system |
| CN110221423A (en) * | 2019-05-24 | 2019-09-10 | 北方夜视技术股份有限公司 | Hand-held low-light level night vision device |
| CN111751976A (en) * | 2020-07-07 | 2020-10-09 | 北方夜视技术股份有限公司 | Portable low-light level night vision device with general type connection structure |
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