CN107065127B - Helmet type night vision camera - Google Patents

Helmet type night vision camera Download PDF

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Publication number
CN107065127B
CN107065127B CN201611224832.7A CN201611224832A CN107065127B CN 107065127 B CN107065127 B CN 107065127B CN 201611224832 A CN201611224832 A CN 201611224832A CN 107065127 B CN107065127 B CN 107065127B
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lens
concave
objective
frame
objective lens
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CN201611224832.7A
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CN107065127A (en
Inventor
邱亚峰
任桃桃
宋诚鑫
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Nanjing University of Science and Technology
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Nanjing University of Science and Technology
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
    • G02B13/006—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element at least one element being a compound optical element, e.g. cemented elements
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/70—SSIS architectures; Circuits associated therewith
    • H04N25/76—Addressed sensors, e.g. MOS or CMOS sensors

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
  • Telescopes (AREA)

Abstract

The invention provides a helmet-type night vision camera which comprises an objective lens system mechanism, a main shell structure, a position adjusting mechanism, a knob switch, a low-illumination CMOS detector, a light supplementing lamp mechanism and a five-pin plug, wherein the main shell structure is provided with a shell; the camera comprises a main shell structure, an objective lens system mechanism, a low-illumination CMOS detector, a position adjusting mechanism, a five-pin plug, a knob switch, a light supplementing lamp and a camera, wherein the objective lens system mechanism is arranged at the front end of the main shell structure; the objective lens system mechanism comprises an objective lens frame which reciprocates along the linear direction and a double-Gaussian objective lens group arranged in the objective lens frame; the position adjusting mechanism comprises an adjusting rack which rotates along the worm wheel in a reciprocating mode and an adjusting rack which moves along the rack in a reciprocating linear mode.

Description

Helmet type night vision camera
Technical Field
The invention relates to a night vision imaging technology, in particular to a helmet type position-adjustable night vision camera.
Background
The night vision camera is used as important equipment for night marching operations, is always the key point of research in all countries, various night vision equipment is developed around technologies such as infrared and low-light level, and the active infrared night vision device is mature in development, but needs to be irradiated by an infrared light source during working and is easy to be detected by enemies to expose the active infrared night vision device; the low-light night vision device is not easy to expose itself, but has high cost and performance greatly influenced by weather, and cannot normally work in rainy and foggy days. Because the night vision camera is arranged on the helmet, the smaller the weight and the volume is, the better the night vision camera is, the larger the night vision camera is, the soldier can move, the outdoor power supply is not provided, the lower the power consumption is, the better the night vision camera is, the low-illumination CMOS image transmission technology is based on the traditional CMOS image transmission technology, the sensitivity of signals and the signal-to-noise ratio are improved, the good image transmission performance of the low-illumination CMOS image transmission technology is kept, the night vision camera has the advantages of small specific volume, low power consumption and the like, and the helmet camera on the market is mostly fixed at present, and the camera shooting position.
Disclosure of Invention
The invention aims to provide a helmet type position-adjustable low-illumination CMOS night vision camera which comprises an objective lens system mechanism, a main shell structure, a position adjusting mechanism, a knob switch, a low-illumination CMOS detector, a light supplementing lamp mechanism and a five-pin plug. The low-illumination CMOS detector is arranged in the main shell structure and is arranged at the rear end of the objective system mechanism, the five-pin plug is arranged at the rear end of the main shell and is used for transmitting signals received by the low-illumination CMOS detector and accessing a system power supply, and the knob switch is arranged on the main shell structure and is used for switching on and off the power supply and the light supplementing lamp; the objective lens system mechanism comprises an objective lens frame which reciprocates along the linear direction and a double-Gaussian objective lens group arranged in the objective lens frame; the position adjusting mechanism comprises an adjusting rack which rotates along the worm wheel in a reciprocating mode and an adjusting rack which moves along the rack in a reciprocating linear mode.
Based on the night vision camera, the double-gauss objective lens group comprises six coaxial lenses and an aperture diaphragm, wherein the lenses and the aperture diaphragm are a first concave-convex lens, a second concave-convex lens, a third concave-convex lens, an aperture diaphragm, a fourth concave-convex lens, a fifth concave-convex lens and a sixth biconvex lens in sequence according to the incident direction of light; the rear end face of the second concave-convex lens is identical to and glued with the front end face of the third concave-convex lens in curvature radius, and the rear end face of the fourth concave-convex lens is identical to and glued with the front end face of the fifth concave-convex lens in curvature radius.
Based on the night vision camera, the night vision camera further comprises a light supplement lamp mechanism arranged in the main shell structure, wherein the light supplement lamp mechanism comprises a focusing lens base, a light supplement lamp gland, a light source, a condensing lens focusing barrel, a condensing lens and a condensing lens barrel; wherein the focusing lens seat sets up in main shell structure inner wall, sets up the through-hole in it, sets up corresponding opening on the main shell structure wall, and the light filling lamp gland is connected with condensing lens focusing section of thick bamboo, and the light source sets up in condensing lens focusing section of thick bamboo and is fixed in on the light filling lamp gland, and the condensing lens cone sets up on the through-hole inner wall of focusing lens seat and with condensing lens focusing section of thick bamboo inner wall threaded connection, and the condensing lens sets up in the condensing lens cone.
Compared with the prior art, the invention has the following advantages:
the night vision camera is arranged on a helmet, so that the lighter the weight is, the smaller the volume is, the better the camera cannot be charged in the field, the longer the standby time is, the better the camera is, the night vision camera is provided with a position adjusting mechanism, can adjust the angle and the displacement according to the requirement, and is more convenient to wear than a fixed night vision camera, and compared with other types such as infrared and low-light night vision devices, the night vision camera has the characteristics of small volume, low power consumption and the like due to the advantage of a low-illumination COMS detector, can carry out 3-level operation by adopting a knob switch, and is more convenient to control the on-off of a power; the shell adopts an integral structure, so that the sealing performance is better; the multi-thread focusing mechanism of the eyepiece enables the night vision device to focus more quickly; the adjustment mechanism of light filling lamp conveniently focuses on the light source, can carry out more abundant light filling to required scene.
The invention is further described below with reference to the accompanying drawings.
Drawings
FIGS. 1(a), (b) and (c) are schematic views of the overall structure of the present invention.
Fig. 2(a), (b) and (c) are schematic views of the position adjusting mechanism of the present invention.
FIG. 3 is a schematic diagram of the objective lens system of the present invention.
FIG. 4 is a schematic view of a fill-in light mechanism according to the present invention.
Detailed Description
With reference to fig. 1, a helmet-type monocular wide-angle low-illumination CMOS night vision device is characterized by comprising a position adjusting mechanism 1, a knob switch 2, a main shell structure 3, a light supplement lamp mechanism 4, an objective lens system mechanism 5, a low-illumination CMOS detector 6 and a five-pin plug 7; wherein
The position adjustment mechanism 1 is disposed on a side of the main housing structure 3,
the objective system mechanism 5 is disposed at the front end of the main housing structure 3,
position adjusting mechanism 1
The low-illumination CMOS detector 6 is disposed in the main housing structure 3 and at the rear end of the objective lens system mechanism 5,
the five-pin plug 7 is arranged at the rear end of the main shell and is used for transmitting signals received by the low-illumination CMOS detector and connecting a system power supply,
the knob switch 2 is disposed on the main housing structure 3, and is used for switching a power supply and a light supplement lamp.
The night vision camera also comprises a light supplement lamp mechanism 4, and when the illumination is lower than 1 multiplied by 10-3And when the illumination is on, the light supplement lamp is turned on to work.
Referring to FIG. 2, the position adjusting mechanism 1 comprises a displacement adjusting shaft 1-1, an adjusting mechanism frame 1-2, a limit nail 1-3, a screw 1-4, an angle adjusting shaft 1-5, a bearing 1-6, a worm 1-7, a worm wheel 1-8, a screw 1-9, a double-dovetail groove structure 1-10, a rack 1-11, a gear 1-12 and a bearing 1-13; wherein
One side of a double-dovetail groove structure 1-10 is used for being fixed on a helmet, a gear is fixed on a displacement adjusting shaft 1-1, a rack is fixed on the double-dovetail groove structure through screws 1-4, bearings 1-13 are arranged on an adjusting mechanism frame 1-2, the displacement adjusting shaft 1-1 is arranged on the bearings 1-13, the displacement adjusting shaft 1-1 can rotate in the adjusting mechanism frame 1-2, the displacement adjusting shaft 1-1 is rotated, the gear drives the rack, so that the adjusting mechanism frame 1-2 can move linearly and reciprocally along the double-dovetail groove structure 1-10,
a worm wheel 1-8 is fixed on a main shell structure 3 through screws 1-9, a worm 1-7 is fixed on an angle adjusting shaft 1-5, a bearing 1-6 is arranged on an adjusting mechanism frame 1-2, the angle adjusting shaft 1-5 is arranged on the bearing 1-6, the angle adjusting shaft 1-5 can rotate in the adjusting mechanism frame 1-2, a limit nail 1-3 enables the worm wheel 1-8 to move linearly along an inner groove of a double-dovetail groove structure 1-10, the angle adjusting shaft 1-5 is rotated, and the worm 1-7 drives the worm wheel 1-8 to enable the adjusting mechanism frame 1-2 to rotate back and forth along the worm wheel 1-8.
Referring to fig. 3, the objective lens system mechanism 5 includes an objective lens frame 5-1 reciprocally moving in a linear direction, and a double-gauss objective lens group 5-6 disposed in the objective lens frame 5-1. The double-Gaussian objective group 5-6 comprises six coaxial lenses and an aperture diaphragm 5-8. The lens and the aperture diaphragm 5-8 are a first concave-convex lens, a second concave-convex lens, a third concave-convex lens, an aperture diaphragm 5-8, a fourth concave-convex lens, a fifth concave-convex lens and a sixth biconvex lens in sequence according to the incident direction of light rays; the rear end face of the second concave-convex lens is identical to and glued with the front end face of the third concave-convex lens in curvature radius, and the rear end face of the fourth concave-convex lens is identical to and glued with the front end face of the fifth concave-convex lens in curvature radius. The objective lens frame 5-1 is connected with the main shell structure 3 through the lens base 5-10, the outer wall of the objective lens frame 5-1 is provided with external threads, the inner wall of the objective lens base 5-10 is provided with internal threads, the two are in threaded connection, and the objective lens frame 5-1 can reciprocate on the lens base 5-10 along the linear direction by rotating the objective lens frame 5-1. In order to conveniently place the double-Gauss objective lens group 5-6, the through hole of the objective lens frame 5-1 is designed to be step-shaped, and forms a three-stage step together with the front end face of the objective lens frame 5-1, wherein the double-Gauss objective lens group 5-6 is positioned in the through hole part with the smallest inner diameter. In order to fix different lenses of the double-Gaussian objective lens group 5-6, a pressing ring and a spacing ring are designed to fix the lenses, and the fixing mode is as follows:
1. the first concave-convex lens is fixed through a first annular pressing ring 5-2 arranged on the inner wall of the objective lens frame 5-1;
2. the second concave-convex lens is fixed through a first annular space ring 5-3 arranged on the inner wall of the objective lens frame 5-1, and a gap is reserved between the rear end face of the first concave-convex lens and the front end face of the second concave-convex lens in the axial direction by the first annular space ring 5-3;
3. the fifth concave lens is fixed through a second annular space ring 5-7 arranged on the inner wall of the objective lens frame 5-1, and a gap is formed between the rear end face of the fifth concave-convex lens and the front end face of the sixth concave-convex lens in the axial direction through the second annular space ring 5-7;
4. the sixth biconvex lens is fixed by a bulge at the rear end of the inner wall of the objective lens frame 5-1.
The first annular pressing ring 5-2 is positioned on the inner wall of the through hole part passing through the object lens frame 1-1 at the middle position, the first annular space ring 5-3 and the second annular space ring 5-7 are positioned on the through hole part passing through the object lens frame 5-1 with the smallest inner diameter, and the third concave lens, the fourth concave lens and the fifth concave lens are also arranged in the through hole of the second annular space ring 5-7. In order to limit the displacement of the objective frame 5-1, the rear end of the objective frame 5-1 is provided with a limit ring 5-5. The limiting ring 5-5 can limit the displacement of the objective lens frame to move in a certain interval, and the front end point and the rear end point of the moving interval are respectively the position of the objective lens frame 5-1 when the limiting ring 5-5 touches the wall surface of the objective lens seat 5-10 and the position of the objective lens frame 5-1 when the limiting ring touches the wall surface of the main shell structure 2. A sealing ring 5-9 is arranged between the objective lens frame 5-1 and the objective lens seat 5-10 to play a role in sealing and increasing damping. The focus is adjusted by rotating the objective lens frame 5-1 to focus the image of the scenery on the detection surface of the low-illumination CMOS detector. And an adjusting gasket 5-4 is arranged between the lens bases 5-10 and used for adjusting the rear intercept.
Referring to fig. 4, the light supplement lamp mechanism 4 includes a light supplement lamp gland 4-5, a light source 4-1, a condenser lens focusing barrel 4-4, a condenser lens 4-3, and a condenser lens barrel 4-2. The light supplementing lamp gland 4-5 is connected with the condensing lens focusing barrel 4-4, the light source 4-1 is arranged in the condensing lens focusing barrel 4-4 and fixed on the light supplementing lamp gland 4-5, the condensing lens barrel 4-2 is arranged on the inner wall of the through hole of the main shell structure 3 and is in threaded connection with the inner wall of the condensing lens focusing barrel 4-4, and the condensing lens 4-3 is arranged in the condensing lens barrel 4-2.

Claims (6)

1. A helmet-type night vision camera is characterized by comprising a position adjusting mechanism (1), a knob switch (2), a main shell structure (3), an objective system mechanism (5), a low-illumination CMOS detector (6) and a five-pin plug (7); wherein
The position adjusting mechanism (1) is arranged on the side surface of the main shell structure (3),
the objective system mechanism (5) is arranged at the front end of the main shell structure (3),
the low-illumination CMOS detector (6) is arranged in the main shell structure (3) and is arranged at the rear end of the objective system mechanism (5),
a five-pin plug (7) is arranged at the rear end of the main shell and is used for transmitting signals received by the low-illumination CMOS detector and connecting a system power supply,
the knob switch (2) is arranged on the main shell structure (3) and is used for switching a power supply and a light supplementing lamp; wherein
The position adjusting mechanism (1) comprises an adjusting mechanism frame (1-2) which rotates along a worm wheel (1-8) in a reciprocating way and an adjusting mechanism frame (1-2) which moves along a rack (1-11) in a reciprocating way,
the objective lens system mechanism (5) comprises an objective lens frame (5-1) which reciprocates along the linear direction, and a double-Gaussian objective lens group (5-6) arranged in the objective lens frame (5-1);
the position adjusting mechanism (1) comprises a displacement adjusting shaft (1-1), an adjusting mechanism framework (1-2), a limiting nail (1-3), a first screw (1-4), an angle adjusting shaft (1-5), a first bearing (1-6), a worm (1-7), a worm wheel (1-8), a second screw (1-9), a double-dovetail groove structure (1-10), a rack (1-11), a gear (1-12) and a second bearing (1-13); wherein
One side of the double-dovetail groove structure (1-10) is used for being fixed on a helmet, the gear is fixed on the displacement adjusting shaft (1-1), the rack is fixed on the double-dovetail groove structure by a first screw (1-4), the second bearing (1-13) is arranged on the adjusting mechanism framework (1-2), the displacement adjusting shaft (1-1) is arranged on the second bearing (1-13), the displacement adjusting shaft (1-1) rotates in the adjusting mechanism framework (1-2), the displacement adjusting shaft (1-1) rotates, the gear drives the rack, so that the adjusting mechanism framework (1-2) linearly moves in a reciprocating manner along the double-dovetail groove structure (1-10),
a worm wheel (1-8) is fixed on a main shell structure (3) through a second screw (1-9), a worm (1-7) is fixed on an angle adjusting shaft (1-5), a first bearing (1-6) is arranged on an adjusting mechanism framework (1-2), the angle adjusting shaft (1-5) is arranged on the first bearing (1-6), the angle adjusting shaft (1-5) rotates in the adjusting mechanism framework (1-2), the worm wheel (1-8) linearly moves along an inner groove of a double-dovetail groove structure (1-10) through a limiting nail (1-3), the adjusting shaft (1-5) is rotated in an angle, and the worm (1-7) drives the worm wheel (1-8) to enable the adjusting mechanism framework (1-2) to rotate back and forth along the worm wheel (1-8).
2. Night vision camera according to claim 1, characterized in that the double-gauss objective lens set (5-6) comprises six lenses and an aperture stop (5-8) which are coaxial, wherein
The lens and the aperture diaphragm (5-8) are sequentially a first concave-convex lens, a second concave-convex lens, a third concave-convex lens, the aperture diaphragm (5-8), a fourth concave-convex lens, a fifth concave-convex lens and a sixth biconvex lens according to the incident direction of light rays; the rear end face of the second concave-convex lens is identical to and glued with the front end face of the third concave-convex lens in curvature radius, and the rear end face of the fourth concave-convex lens is identical to and glued with the front end face of the fifth concave-convex lens in curvature radius.
3. A night vision camera as claimed in claim 1, characterized in that the night vision camera further comprises a fill-in light mechanism (4) arranged in the main housing structure (3), the fill-in light mechanism (4) comprising a fill-in light cover (4-5), a light source (4-1), a condenser lens focusing barrel (4-4), a condenser lens (4-3), a condenser lens barrel (4-2); wherein
The condenser lens barrel (4-2) is arranged on the inner wall of the main shell structure (3), a through hole is arranged in the condenser lens barrel, a corresponding opening is arranged on the wall surface of the main shell structure (3),
the light supplement lamp gland (4-5) is connected with the condensing lens focusing barrel (4-4),
the light source (4-1) is arranged in the condensing lens focusing barrel (4-4) and is fixed on the light supplement lamp gland (4-5),
the condenser lens barrel (4-2) is in threaded connection with the inner wall of the condenser lens focusing barrel (4-4),
the condenser lens (4-3) is arranged in the condenser lens barrel (4-2).
4. Night vision camera according to claim 2, characterized in that the objective frame (5-1) is connected to the main housing structure (3) by means of a lens mount (5-10), the objective frame (5-1) being reciprocally movable in a linear direction on the lens mount (5-10);
the first concave-convex lens is fixed through a first annular pressing ring (5-2) arranged on the inner wall of the objective lens frame (5-1);
the second concave-convex lens is fixed through a first annular space ring (5-3) arranged on the inner wall of the objective lens frame (5-1), and a gap is reserved between the rear end face of the first concave-convex lens and the front end face of the second concave-convex lens in the axial direction through the first annular space ring (5-3);
the fifth concave-convex lens is fixed through a second annular space ring (5-7) arranged on the inner wall of the objective lens frame (5-1), and a gap is reserved between the rear end face of the fifth concave-convex lens and the front end face of the sixth biconvex lens in the axial direction through the second annular space ring (5-7);
the sixth biconvex lens is fixed through a bulge at the rear end of the inner wall of the objective lens frame (5-1).
5. Night vision camera according to claim 4, characterized in that a stop ring (5-5) is arranged at the rear end of the objective frame (5-1) for limiting the displacement of the objective frame (5-1).
6. Night vision camera according to claim 4, characterized in that adjusting shims (5-4) are arranged between the lens holders (5-10) for adjusting the rear intercept.
CN201611224832.7A 2016-12-27 2016-12-27 Helmet type night vision camera Active CN107065127B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109512073A (en) * 2018-11-09 2019-03-26 中国兵器装备集团自动化研究所 A kind of military helmet based on intelligent human-machine interaction design

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Publication number Priority date Publication date Assignee Title
CN2891225Y (en) * 2006-02-24 2007-04-18 常州新区赛恩机电设备有限公司 TV set lifter
CN204437612U (en) * 2015-02-04 2015-07-01 陈学考 A kind of television set regulator
CN204496098U (en) * 2015-03-31 2015-07-22 连平耀文电子有限公司 A kind of Novel monotubular infrared night vision mirror
CN204613518U (en) * 2015-05-27 2015-09-02 山东神戎电子股份有限公司 A kind of binocular helmet formula night vision maintenance recording geometry
CN105425397A (en) * 2016-01-01 2016-03-23 赵山山 Automatic adjusting method, automatic adjusting system and automatic adjusting device for head mounted display
CN105892036A (en) * 2016-06-07 2016-08-24 南京理工大学 Head-mounted monocular wide-angle low-illumination-level CMOS night-vision device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2891225Y (en) * 2006-02-24 2007-04-18 常州新区赛恩机电设备有限公司 TV set lifter
CN204437612U (en) * 2015-02-04 2015-07-01 陈学考 A kind of television set regulator
CN204496098U (en) * 2015-03-31 2015-07-22 连平耀文电子有限公司 A kind of Novel monotubular infrared night vision mirror
CN204613518U (en) * 2015-05-27 2015-09-02 山东神戎电子股份有限公司 A kind of binocular helmet formula night vision maintenance recording geometry
CN105425397A (en) * 2016-01-01 2016-03-23 赵山山 Automatic adjusting method, automatic adjusting system and automatic adjusting device for head mounted display
CN105892036A (en) * 2016-06-07 2016-08-24 南京理工大学 Head-mounted monocular wide-angle low-illumination-level CMOS night-vision device

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