CN213338199U - Optical system capable of shortening size of night vision device - Google Patents
Optical system capable of shortening size of night vision device Download PDFInfo
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- CN213338199U CN213338199U CN202022856869.XU CN202022856869U CN213338199U CN 213338199 U CN213338199 U CN 213338199U CN 202022856869 U CN202022856869 U CN 202022856869U CN 213338199 U CN213338199 U CN 213338199U
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- vision device
- night vision
- objective lens
- reflector
- photoelectric sensor
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Abstract
The utility model discloses an optical system capable of shortening the size of a night vision device, which relates to the field of night vision devices and comprises a night vision device body, wherein a photoelectric sensor, a display, an eyepiece and an objective lens are arranged inside the night vision device body, the display is positioned inside the eyepiece, a reflector which is obliquely arranged is arranged on the night vision device body inside the display, the objective lens is arranged in the oblique direction of the reflector, and the photoelectric sensor is arranged at the rear end of the objective lens, the optical path is changed by utilizing the reflector, the incident optical path is changed by 90 degrees, so that the objective lens group and the photoelectric sensor can be arranged outside the optical axis, the total length of the incident optical path is shortened by L2+ L3 which accounts for the axial size, the length of the whole machine L1 is shortened, the positions of the objective lens and the photoelectric sensor are replaced by the reflector, and the total length of the machine body is shortened to be, the viewing pose of the user using the conventional optical sighting telescope is not affected.
Description
Technical Field
The utility model relates to a night-time vision device technical field specifically is an optical system of reducible night-time vision device size.
Background
The night vision device attached to the tail of the optical sighting telescope increases the ability of obtaining a clear and sharp image at night for a user, but the night vision device occupies the viewing distance of the traditional user using the optical sighting telescope, changes the using habit and posture of the user, and aims to reach or approach the acceptance degree of the traditional optical sighting telescope user, so that the target of all manufacturers is to shorten the length of the night vision device, and the length of the whole night vision device is also an important parameter for measuring the product performance of the night vision device.
The stacking form of all devices in the whole night vision device is as follows: the objective Lens (Lens), the CMOS sensor (CMOS sensor), the circuit board (PCB), the Micro Display device (Micro Display), the Eyepiece Lens (Eye piece), the Eye Mask (Eye Mask) and other components are arranged in a straight line on an optical axis, the total length of a machine body is usually more than 120mm, the using distance of an optical sighting telescope user is usually 60-100 mm, and the user needs to change the habit posture to adapt to the night vision device, so that the night vision device is very inconvenient.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an optical system of reducible night-time vision device size to inconvenient problem when solving the night-time vision device that proposes in the above-mentioned background art and supporting the use of optical sighting telescope.
In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a can shorten optical system of night-time vision device size, includes the night-time vision device body, night-time vision device body internally mounted has photoelectric sensor, display, eyepiece and objective, the display is located the inboard of eyepiece, be provided with the reflector that the slope was placed on the night-time vision device body of display inboard, objective is installed to the upside of reflector, and optical sensor is installed to the upside of objective.
Preferably, the light sensor is a CMOS sensor.
Preferably, the objective lens and the optical sensor are placed above the optical axis.
Preferably, the reflector is placed at an angle of 45 degrees.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses an utilize the speculum to change the light path, change incident light path 90 degrees, can arrange the objective group with the CMOS sensor in the place outside the optical axis from this, thereby shorten L2+ L3, the length of complete machine L1 has been shortened in step, the position of objective and CMOS sensor is replaced by the speculum, thereby shorten the total length of fuselage to within 90mm, let the user not use the night-time vision device daytime, and the observation when sheatheeing the night-time vision device is aimed the posture and is not influenced night.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the light path of the present invention;
fig. 3 is a schematic diagram of a prior art optical path.
In the figure: 1. a night vision device body; 2. an objective lens; 3. a reflective mirror; 4. an eyepiece; 5. a display; 6. a photoelectric sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1, the present embodiment provides an optical system capable of shortening the size of a night vision device, including a night vision device body 1, a photoelectric sensor 6, a display 5, an eyepiece 4 and an objective lens 2 are installed inside the night vision device body 1, the display 5 is located inside the eyepiece, a reflector 3 placed obliquely is arranged on the night vision device body 1 inside the display 5, the objective lens 2 is installed on the upper side of the reflector 3, and reflects light upwards, so as to change the direction of a light path and change the direction of horizontal light; the focal length of the objective lens 2 is changed to be vertical, so that the outer cylinder of the objective lens is changed from horizontal to vertical, and the overall length of the night vision device is changed. A photosensor 6 is mounted on the upper side of the objective lens 2.
As shown in FIG. 2, the incident light path is changed by 90 degrees, so that the objective lens group and the CMOS sensor can be arranged at a place outside the optical axis, and the length of the whole machine L1 is synchronously shortened by shortening L2+ L3
The light sensor 6 is a CMOS sensor.
In order to make the observation more accurate, the objective lens 2 and the optical sensor 6 are placed above the optical axis.
In order to prevent the night vision device from being squinted and increase the convenience of the night vision device when the night vision device is used, the reflective mirror 3 is arranged by inclining at an angle of 45 degrees.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. An optical system capable of shortening the size of a night vision device comprises a night vision device body (1), wherein a photoelectric sensor (6), a display (5), an eyepiece (4) and an objective lens (2) are mounted inside the night vision device body (1), the display (5) is positioned on the inner side of the eyepiece, and the optical system is characterized in that: be provided with reflector (3) that the slope was placed on display (5) inboard night-time vision device body (1), objective (2) are installed to the top of reflector (3), and photoelectric sensor (6) are installed to the upside of objective.
2. An optical system for shortening the size of a night vision device as set forth in claim 1, wherein: the photoelectric sensor (6) is a CMOS sensor.
3. An optical system for shortening the size of a night vision device as set forth in claim 1, wherein: the objective lens (2) and the photoelectric sensor (6) are placed above the optical axis.
4. An optical system for shortening the size of a night vision device as set forth in claim 1, wherein: the reflector (3) is placed by inclining at an angle of 45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022856869.XU CN213338199U (en) | 2020-12-03 | 2020-12-03 | Optical system capable of shortening size of night vision device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022856869.XU CN213338199U (en) | 2020-12-03 | 2020-12-03 | Optical system capable of shortening size of night vision device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213338199U true CN213338199U (en) | 2021-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022856869.XU Active CN213338199U (en) | 2020-12-03 | 2020-12-03 | Optical system capable of shortening size of night vision device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213338199U (en) |
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2020
- 2020-12-03 CN CN202022856869.XU patent/CN213338199U/en active Active
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