CN105892036A - Head-mounted monocular wide-angle low-illumination-level CMOS night-vision device - Google Patents
Head-mounted monocular wide-angle low-illumination-level CMOS night-vision device Download PDFInfo
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- CN105892036A CN105892036A CN201610397282.2A CN201610397282A CN105892036A CN 105892036 A CN105892036 A CN 105892036A CN 201610397282 A CN201610397282 A CN 201610397282A CN 105892036 A CN105892036 A CN 105892036A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/12—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices with means for image conversion or intensification
- G02B23/125—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices with means for image conversion or intensification head-mounted
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Abstract
The invention provides a head-mounted monocular wide-angle low-illumination-level CMOS night-vision device which comprises an objective lens system mechanism, a main shell structure, an eye lens system mechanism, a power supply mechanism, a knob switch, a low-illumination CMOS detector, a signal processing and control system and an OLED display screen, wherein the objective lens system mechanism is arranged at the front end of the main shell structure; the eye lens system mechanism is arranged at the rear end of the main shell structure; the low-illumination CMOS detector is arranged inside the main shell structure and is arranged at the rear end of the objective lens system mechanism; the signal processing and control system is arranged at the rear end of the low-illumination CMOS detector and is used for displaying a signal received by the low-illumination CMOS detector on the OLED display screen; the OLED display screen is arranged inside the main shell structure and is arranged at the rear end of the signal processing and control system for imaging; the knob switch is arranged on the main shell structure and is used for powering on and off a power supply and a light compensating lamp; the objective lens system mechanism comprises an objective lens frame which makes reciprocation movement in the direction of a straight line, and a double-gauss objective lens group arranged inside the objective lens frame.
Description
Technical field
The present invention relates to a kind of night vision imaging technique, particularly a kind of helmet-type monocular Radix Rumicis low-light (level)
CMOS night vision device.
Background technology
Night vision device, gunsight outside the night with image intensifier as core devices, without infrared searchlight during its work
Illumination target, and utilize faint light to be strengthened on fluorescent screen as people by image intensifier according to the reflected light of lower target
The visual picture that eye can be experienced is observed and run-home, is widely used, present market in military investigation equipment
On the night vision device structure sold complicated, and function singleness, Application No. CN200920057545.0 discloses
A kind of night vision device, including housing, is front and back sequentially installed with lens assembly, imaging display and eyecup on housing
Device, is provided with single board computer camera assembly, imaging display and single board computer and takes the photograph between lens assembly and imaging display
As assembly is connected with controlling assembly, control assembly and be provided with memory card interface, be additionally provided with power supply in housing for Denso
Put, it is possible to can with the naked eye carry out observing, monitoring under low-light level environment, be additionally, since and set in night vision device
There is single board computer camera assembly, viewed for night vision device image can be preserved by shooting or video recording,
But this type of night vision device only limits and uses at night, and the distance range used is little, it has not been convenient to use at a distance.
Additionally, current night vision device, the most all only with infrared ray as light source, but such night vision device note
Surely have infrared ray hot spot and occur in night vision device surface, may also appear in monitoring area, be unfavorable for undisturbed
Monitoring shooting, secondly, its length of current night vision device is relatively big, and amplification is the highest, and its length is the biggest, and it is put
Big multiple is that the regulation relying on object lens itself realizes, and greatly limit its size.
Summary of the invention
It is an object of the invention to provide a kind of helmet-type monocular Radix Rumicis low-light (level) CMOS night vision device, including thing
Mirror system mechanism, main shell structure, eyepiece system mechanism, power sector, rotary switch, low-light (level) CMOS
Detector, signal processing and control system, OLED display screen.Objective system mechanism is arranged at main shell structure
Front end, eyepiece system mechanism is arranged at main shell structure rear end, and low-light (level) cmos detector is arranged at main casing
Body structure is interior and is placed in objective system mechanism rear end, and signal processing and set-up of control system are in low-light (level) CMOS
Detector rear end, for the signal that low-light (level) cmos detector receives is shown in OLED display screen,
OLED display screen is arranged in main shell structure and is placed in signal processing with control system rear end for imaging, rotation
Button switch is arranged on main shell structure, for the switch of power supply, and the switch of light compensating lamp；Wherein object lens system
System mechanism includes the objective lens frame linearly moved back and forth, and the double Gauss objective being arranged in objective lens frame
Group.
Based on above-mentioned night vision device, described double Gauss objective group includes coaxial six piece lens and aperture diaphragm, wherein
Described lens and aperture diaphragm according to light direction be followed successively by the first meniscus, the second meniscus, the
Three meniscuss, aperture diaphragm, the 4th meniscus, the 5th meniscus, the 6th biconvex lens；Described
Two meniscus rear end faces and the 3rd meniscus front end face radius of curvature are identical and glued, described 4th concavo-convex
The rear end face of mirror and the front end face radius of curvature of the 5th meniscus are identical and glued.
Based on above-mentioned night vision device, described eyepiece system mechanism includes the eyepiece frame linearly moved back and forth and sets
Coaxial and the symmetrically arranged four pieces of lens being placed in eyepiece frame, described lens are followed successively by according to light direction
7th planoconcave lens, the 8th biconvex lens, the 9th biconvex lens, the tenth planoconcave lens；Wherein the 7th plano-concave is saturating
Mirror rear end face and the 8th biconvex lens front end face radius of curvature are identical and glued, the 9th biconvex lens rear end face and
Ten planoconcave lens front end face radius of curvature are identical and glued.
Based on above-mentioned night vision device, this night vision device also includes the light compensating lamp mechanism being arranged in main shell structure, described
Light compensating lamp mechanism includes focusing on microscope base, light compensating lamp gland, light source, condenser lens focusing drum, condenser lens, optically focused
Lens barrel；Wherein focus on microscope base and be arranged at main shell structure inwall, through hole is set in it, on main shell structure wall
Arranging respective openings, light compensating lamp gland is connected with condenser lens focusing drum, and light source is arranged in condenser lens focusing drum also
Be fixed on light compensating lamp gland, optically focused lens barrel be arranged at focus on microscope base through-hole wall on and with condenser lens focusing drum
Inner thread connects, and condenser lens is arranged in optically focused lens barrel.
As a modification of the present invention, rotary switch is set to third gear, wherein first grade of pass；Second gear system
Work, light compensating lamp closes；Third gear system work light compensating lamp simultaneously is opened.
Because night vision device is installed on the helmet, therefore weight is the lightest, volume is the smaller the better, cannot fill in the wild
Electricity, therefore the longer the better for stand-by time, this night vision device due to the advantage of low-light (level) COMS detector, make it with
Its kind is the most infrared, low-light level night vision device is compared has the features such as volume is little, low in energy consumption, and this night vision device uses knob
Switch, can carry out 3 grades of operations, the more convenient control switching on/off and light compensating lamp than key switch；
Shell uses overall structure so that sealing property is more preferable；The multiple thread focus adjusting mechanism of eyepiece and object lens, makes
Obtain night vision device can focus on faster；The governor motion of light compensating lamp is convenient to be focused light source, it is possible to required
Scene carries out light filling more fully.
Below in conjunction with Figure of description, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention, and wherein Fig. 1 (a) is normal axomometric drawing, and Fig. 1 (b) is for facing upward
View, Fig. 1 (c) is main sectional view.
Fig. 2 is objective system structural scheme of mechanism of the present invention.
Fig. 3 is eyepiece system structural scheme of mechanism of the present invention.
Fig. 4 is light compensating lamp structural scheme of mechanism of the present invention.
Detailed description of the invention
In conjunction with Fig. 1, a kind of helmet-type monocular Radix Rumicis low-light (level) CMOS night vision device, it is characterised in that include thing
Mirror system mechanism 1, main shell structure 2, eyepiece system mechanism 4, power sector 5, rotary switch 7, low photograph
Degree cmos detector 8, signal processing and control system 9, OLED display screen 10；Wherein
Objective system mechanism 1 is arranged at main shell structure 2 front end,
Eyepiece system mechanism 4 is arranged at main shell structure 2 rear end,
In low-light (level) cmos detector 8 is arranged at main shell structure 2 and be placed in objective system mechanism 1 rear end,
Signal processing and control system 9 are arranged at low-light (level) cmos detector 8 rear end, for by low-light (level)
The signal that cmos detector 8 receives is shown in OLED display screen 10,
In OLED display screen 10 is arranged at main shell structure 2 and be placed in signal processing and control system 9 rear end
For imaging, OLED display screen center aligns with eyepiece system mechanism 4,
Rotary switch 7 is arranged on main shell structure 2, is used for regulating OLED display screen 10 and low-light (level)
Distance between cmos detector 8.Rotary switch 7 arranges third gear, switchs on/off and light compensating lamp
It is controlled.
Night vision device of the present invention also includes light compensating lamp mechanism 6, when illumination is less than 1 × 10-3During illumination, open
Light compensating lamp works.
Night vision device of the present invention also includes the suspended structure 3 being arranged on main shell structure 2, for outward
Part device connects.
In conjunction with Fig. 2, objective system mechanism 1 includes the objective lens frame 1-1, Yi Jishe linearly moved back and forth
Double Gauss objective group 1-6 being placed in objective lens frame 1-1.Described double Gauss objective group 1-6 includes coaxial six piece
Lens and aperture diaphragm 1-8.Wherein said lens and aperture diaphragm 1-8 are followed successively by the according to light direction
One meniscus, the second meniscus, the 3rd meniscus, aperture diaphragm 1-8, the 4th meniscus,
Five meniscuss, the 6th biconvex lens；Described second meniscus rear end face and the 3rd meniscus front end face are bent
Rate radius is identical and glued, the rear end face of described 4th meniscus and the front end face curvature of the 5th meniscus half
Footpath is identical and glued.Described objective lens frame 1-1 connects main shell structure 2, described objective lens frame by microscope base 1-10
1-1 outer wall is provided with external screw thread, and objective holder 1-10 inwall is provided with female thread, and the two is threaded, by rotating
Objective lens frame 1-1 realizes objective lens frame 1-1 and linearly moves back and forth on microscope base 1-10.Double high for ease of laying
This objective lens 1-6, the via design of objective lens frame 1-1 is step-like, structure together with the front end face of objective lens frame 1-1
Becoming three grades of steps, wherein double Gauss objective group 1-6 is positioned in minimum throughhole portions.For fixing double gauss
The different lens of objective lens 1-6, design trim ring and lens are fixed by spacer ring, and fixed form is as follows:
1, described first meniscus is fixed by being arranged at the first annular trim ring 1-2 of objective lens frame 1-1 inwall；
2, described second meniscus is fixed by being arranged at the first annular spacer ring 1-3 of objective lens frame 1-1 inwall,
And first annular spacer ring 1-3 makes the first meniscus rear end face and the second meniscus front end face have in the axial direction
One gap；
3, described 5th concavees lens are fixed by being arranged at the second annular spacer ring 1-7 of objective lens frame 1-1 inwall,
And second annular spacer ring 1-7 make the 5th meniscus rear end face and the 6th meniscus front end face have in the axial direction
One gap；
4, described 6th biconvex lens is fixed by the projection of objective lens frame 1-1 rear inner wall.
The most first annular trim ring 1-2 is positioned at the inwall through objective lens frame 1-1 throughhole portions in an intermediate position
On, first annular spacer ring 1-3, the second annular spacer ring 1-7 are respectively positioned on interior through minimum objective lens frame 1-1 through-hole section
Divide, and the 3rd concavees lens, the 4th concavees lens and the 5th concavees lens are also placed in the through hole of the second annular spacer ring 1-7.
For the displacement of limiter picture frame 1-1, described objective lens frame 1-1 rear end arranges a spacing ring 1-5.Spacing ring 1-5
Can move in certain interval with the displacement of limiter picture frame, before and after this moving section, two end points are limited respectively
When position ring 1-5 touches objective holder 1-10 wall, objective lens frame 1-1 position and spacing ring touch main shell structure 2
Objective lens frame 1-1 position during wall.Sealing ring 1-9 is set between objective lens frame 1-1 and objective holder 1-10,
Play sealing and increase damping action.By rotating objective lens frame 1-1, focus that to make Scenery Imaging focus on low
On the test surface of illumination cmos detector.Adjustment pad 1-4 is set between described microscope base 1-10, is used for adjusting
Joint rear cut-off distance.
In conjunction with Fig. 3, described eyepiece system mechanism 4 includes the eyepiece frame 4-4 linearly moved back and forth and sets
Coaxial and the symmetrically arranged four pieces of lens being placed in eyepiece frame 4-4, described lens depend on according to light direction
Secondary is the 7th planoconcave lens, the 8th biconvex lens, the 9th biconvex lens, the tenth planoconcave lens；Wherein the 7th is flat
Concavees lens rear end face and the 8th biconvex lens front end face radius of curvature are identical and glued, the 9th biconvex lens rear end face
Identical and glued with the tenth planoconcave lens front end face radius of curvature.7th planoconcave lens is fixed by trim ring 4-3.
Described eyepiece frame 4-4 is threadeded with eyepiece mount 4-1, and eyepiece mount 4-1 is fixed on main shell structure 2.Mesh
Arranging handwheel 4-5 on picture frame 4-4, the two connects by screw 4-9 is fixing, right by rotation hand wheel 4-5 regulation
Jiao, makes eyepiece focus fall in OLED display screen.In the design process, handwheel 4-5 is tubular to the present invention,
Eyepiece frame 4-4 is placed in handwheel 4-5 and fixes, and arranges therebetween a gap, and eyepiece mount 4-1 is tubular,
Insert in the gap of eyepiece frame 4-4 and handwheel 4-5, and threaded with eyepiece mount 4-1.Described 8th biconvex
Between lens, the 9th biconvex lens, the 3rd spacer ring 4-6 is set, is used for making the 8th biconvex lens rear end face and the 9th
Biconvex lens front end face has a gap in the axial direction.Between eyepiece mount 4-1 and handwheel 4-5, sealing ring is set
4-7, for sealing and increasing damping.Adjustment pad 4-2 is set between eyepiece mount 4-1 and main shell structure 2,
For regulating rear cut-off distance.Eyepiece system mechanism rear end arranges eyeshield 4-10.
In conjunction with Fig. 4, described light compensating lamp mechanism 6 include focus on microscope base 6-1, light compensating lamp gland 6-5, light source 6-6,
Condenser lens focusing drum 6-4, condenser lens 6-3, optically focused lens barrel 6-2.Wherein focus on microscope base 6-1 and be arranged at main casing
Structure 2 inwall, arranges through hole, main shell structure 2 wall arranges respective openings, light compensating lamp gland in it
6-5 is connected with condenser lens focusing drum 6-4, and light source 6-6 is arranged in condenser lens focusing drum 6-4 and is fixed on light filling
On lamp gland 6-5, optically focused lens barrel 6-2 is arranged on the through-hole wall focusing on microscope base 6-1 and focuses with condenser lens
Cylinder 6-4 inner thread connects, and condenser lens 6-3 is arranged in optically focused lens barrel 6-2.
Claims (9)
1. a helmet-type monocular Radix Rumicis low-light (level) CMOS night vision device, it is characterised in that include objective system mechanism
(1), main shell structure (2), eyepiece system mechanism (4), power sector (5), rotary switch (7), low
Illumination cmos detector (8), signal processing and control system (9), OLED display screen (10)；Wherein
Objective system mechanism (1) is arranged at main shell structure (2) front end,
Eyepiece system mechanism (4) is arranged at main shell structure (2) rear end,
Low-light (level) cmos detector (8) is arranged in main shell structure (2) and is placed in objective system mechanism
(1) rear end,
Signal processing and control system (9) are arranged at low-light (level) cmos detector (8) rear end, and being used for will
The signal that low-light (level) cmos detector (8) receives is shown in OLED display screen (10),
OLED display screen (10) is arranged in main shell structure (2) and is placed in signal processing and control system
(9) rear end is used for imaging,
Power sector (5) is arranged in main shell structure (2), provides running voltage for night vision device,
Rotary switch (7) is arranged on main shell structure (2), controls on/off；Wherein
Objective system mechanism (1) includes the objective lens frame (1-1) linearly moved back and forth, and is arranged at
Double Gauss objective group (1-6) in objective lens frame (1-1).
Night vision device the most according to claim 1, it is characterised in that described double Gauss objective group (1-6) includes
Six pieces of coaxial lens and aperture diaphragm (1-8), wherein
Described lens and aperture diaphragm (1-8) according to light direction be followed successively by the first meniscus, second
Meniscus, the 3rd meniscus, aperture diaphragm (1-8), the 4th meniscus, the 5th meniscus,
Six biconvex lens；Described second meniscus rear end face and the 3rd meniscus front end face radius of curvature is identical and glue
Closing, the rear end face of described 4th meniscus and the front end face radius of curvature of the 5th meniscus are identical and glued.
Night vision device the most according to claim 1, it is characterised in that described eyepiece system mechanism (4) includes edge
Eyepiece frame (4-4) that rectilinear direction moves back and forth and be arranged in eyepiece frame (4-4) coaxial and be symmetrical arranged
Four pieces of lens, described lens are followed successively by the 7th planoconcave lens according to light direction, the 8th biconvex lens,
9th biconvex lens, the tenth planoconcave lens；Wherein the 7th planoconcave lens rear end face and the 8th biconvex lens front end face
Radius of curvature is identical and glued, and the 9th biconvex lens rear end face and the tenth planoconcave lens front end face radius of curvature are identical
And it is glued.
Night vision device the most according to claim 1, it is characterised in that this night vision device also includes being arranged at main casing
Light compensating lamp mechanism (6) in structure (2), light compensating lamp mechanism (6) is controlled by rotary switch (7), described
Light compensating lamp mechanism (6) includes focusing on microscope base (6-1), light compensating lamp gland (6-5), light source (6-6), optically focused
Mirror focusing drum (6-4), condenser lens (6-3), optically focused lens barrel (6-2)；Wherein
Focus on microscope base (6-1) and be arranged at main shell structure (2) inwall, through hole, main shell structure are set in it
(2) on wall, respective openings is set,
Light compensating lamp gland (6-5) is connected with condenser lens focusing drum (6-4),
Light source (6-6) is arranged in condenser lens focusing drum (6-4) and is fixed on light compensating lamp gland (6-5),
Optically focused lens barrel (6-2) be arranged at focus on microscope base (6-1) through-hole wall on and with condenser lens focusing drum (6-4)
Inner thread connects,
Condenser lens (6-3) is arranged in optically focused lens barrel (6-2).
Night vision device the most according to claim 2, it is characterised in that described objective lens frame (1-1) passes through microscope base (1-10)
Connecting main shell structure (2), described objective lens frame (1-1) the most back and forth moves on microscope base (1-10)
Dynamic；
Described first meniscus is solid by the first annular trim ring (1-2) being arranged at objective lens frame (1-1) inwall
Fixed；
Described second meniscus is solid by the first annular spacer ring (1-3) being arranged at objective lens frame (1-1) inwall
Determine, and first annular spacer ring (1-3) makes the first meniscus rear end face and the second meniscus front end face at axle
Upwards there is a gap；
Described 5th concavees lens are fixed by the second annular spacer ring (1-7) being arranged at objective lens frame (1-1) inwall,
And second annular spacer ring (1-7) make the 5th meniscus rear end face and the 6th meniscus front end face in the axial direction
There is a gap；
Described 6th biconvex lens is fixed by the projection of objective lens frame (1-1) rear inner wall.
Night vision device the most according to claim 5, it is characterised in that described objective lens frame (1-1) rear end arranges one
Spacing ring (1-5), for the displacement of limiter picture frame (1-1).
Night vision device the most according to claim 5, it is characterised in that between described microscope base (1-10), tune is set
Whole pad (1-4), is used for regulating rear cut-off distance.
Night vision device the most according to claim 3, it is characterised in that described eyepiece frame (4-4) and eyepiece mount (4-1)
Threaded, eyepiece mount (4-1) is fixed on main shell structure (2), and eyepiece frame (4-4) arranges hands
Wheel (4-5), by rotation hand wheel (4-5) regulation focusing；
Between described 8th biconvex lens, the 9th biconvex lens, the 3rd spacer ring (4-6) is set, is used for making the 8th pair
Convex lens rear end face and the 9th biconvex lens front end face have a gap in the axial direction.
Night vision device the most according to claim 1, it is characterised in that suspension knot is set on main shell structure (2)
Structure (3), for being connected with external device (ED).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610397282.2A CN105892036B (en) | 2016-06-07 | 2016-06-07 | A kind of helmet-type monocular wide-angle low-light (level) CMOS night vision devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610397282.2A CN105892036B (en) | 2016-06-07 | 2016-06-07 | A kind of helmet-type monocular wide-angle low-light (level) CMOS night vision devices |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105892036A true CN105892036A (en) | 2016-08-24 |
| CN105892036B CN105892036B (en) | 2018-06-12 |
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ID=56709976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610397282.2A Expired - Fee Related CN105892036B (en) | 2016-06-07 | 2016-06-07 | A kind of helmet-type monocular wide-angle low-light (level) CMOS night vision devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105892036B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065127A (en) * | 2016-12-27 | 2017-08-18 | 南京理工大学 | A kind of helmet-type night viewing camera |
| CN108955396A (en) * | 2017-05-17 | 2018-12-07 | 广东建元和安科技发展有限公司 | A kind of hand-held anti-sniper active probe device |
| CN110375962A (en) * | 2019-08-15 | 2019-10-25 | 中科院南京天文仪器有限公司 | The device and method for demarcating optical system focal plane is illuminated based on preposition boundling |
| CN114967296A (en) * | 2022-04-22 | 2022-08-30 | 青岛虚拟现实研究院有限公司 | Projection lens, projection ray apparatus and virtual reality equipment |
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| US5943174A (en) * | 1998-06-16 | 1999-08-24 | Itt Manufacturing Enterprises, Inc. | Night vision monocular device |
| CN2722665Y (en) * | 2004-09-08 | 2005-09-07 | 中国人民解放军第二炮兵工程学院 | Night visision device and head helmet connector |
| CN103279938A (en) * | 2013-04-03 | 2013-09-04 | 昆明物理研究所 | Infrared/ glimmer image fusion night vision system |
| CN203825291U (en) * | 2014-04-09 | 2014-09-10 | 北京汉元一诺科技有限公司 | Night vision device equipped with back-turning lens |
| CN104459976A (en) * | 2013-09-25 | 2015-03-25 | 上海祁杉仪器科技有限公司 | Multi-purpose night vision device |
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| US5943174A (en) * | 1998-06-16 | 1999-08-24 | Itt Manufacturing Enterprises, Inc. | Night vision monocular device |
| CN2722665Y (en) * | 2004-09-08 | 2005-09-07 | 中国人民解放军第二炮兵工程学院 | Night visision device and head helmet connector |
| CN103279938A (en) * | 2013-04-03 | 2013-09-04 | 昆明物理研究所 | Infrared/ glimmer image fusion night vision system |
| CN104459976A (en) * | 2013-09-25 | 2015-03-25 | 上海祁杉仪器科技有限公司 | Multi-purpose night vision device |
| CN203825291U (en) * | 2014-04-09 | 2014-09-10 | 北京汉元一诺科技有限公司 | Night vision device equipped with back-turning lens |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065127A (en) * | 2016-12-27 | 2017-08-18 | 南京理工大学 | A kind of helmet-type night viewing camera |
| CN107065127B (en) * | 2016-12-27 | 2020-04-28 | 南京理工大学 | Helmet type night vision camera |
| CN108955396A (en) * | 2017-05-17 | 2018-12-07 | 广东建元和安科技发展有限公司 | A kind of hand-held anti-sniper active probe device |
| CN110375962A (en) * | 2019-08-15 | 2019-10-25 | 中科院南京天文仪器有限公司 | The device and method for demarcating optical system focal plane is illuminated based on preposition boundling |
| CN110375962B (en) * | 2019-08-15 | 2024-05-31 | 中科院南京天文仪器有限公司 | Device and method for calibrating focal plane of optical system based on front-end cluster illumination |
| CN114967296A (en) * | 2022-04-22 | 2022-08-30 | 青岛虚拟现实研究院有限公司 | Projection lens, projection ray apparatus and virtual reality equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105892036B (en) | 2018-06-12 |
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