CN109040546A - A kind of infrared panoramic peephole - Google Patents

Abstract

The invention belongs to the technology of converting infrared radiation energy into visible light, and specifically relates to an infrared peripheral observation mirror. It can be used for observers to observe, command, reconnaissance, surveillance, search for targets, etc., and has functions such as peripheral vision and pitch adjustment. The entrance of the infrared objective lens group of the observation mirror is provided with a protective glass and an upper reflector, and the converging point of the objective lens group is provided with an uncooled infrared detector. The image of the uncooled infrared detector is transmitted to the OLED, and the image surface of the OLED is connected to the eyepiece group. entrance. The invention has good imaging quality, simple installation and adjustment, has the functions of peripheral vision and elevation, and can be used by users to quickly find surrounding targets and the like.

Description

An infrared peripheral observation mirror

technical field

The invention belongs to the technology of converting infrared radiation energy into visible light, and specifically relates to an infrared peripheral observation mirror. It can be used for observers to observe, command, reconnaissance, surveillance, search for targets, etc. It has functions such as peripheral vision and pitch adjustment.

Background technique

Infrared thermal imaging technology is actually a wavelength conversion technology, that is, a technology that converts infrared radiation energy into visible light. It uses the difference in the infrared radiation of the scene itself and each component to obtain the target image, thereby overcoming the self-destructive nature of active infrared night vision. The shortcomings of exposure make up for the shortcomings of passive low-light night vision that is completely dependent on the natural night light of the environment and cannot be imaged without light. Therefore, infrared thermal imaging technology has the advantages of "fully passive" and "all-weather". Because of this, since the 1970s, many countries in the world have been competing to develop and develop infrared thermal imaging technology, and have developed a second-generation imaging system. Among them, the first generation is an infrared thermal imaging system composed of an infrared detector (including a refrigerator), an optical-mechanical scanner, an information processing circuit, and a video display; Infrared thermal images are available and are one of the most promising systems. It has two working modes, one is scanning type, the other is staring type (no optical-mechanical scanning); its characteristics are: high responsiveness, high resolution, wide field of view, small size, light weight, low energy consumption , high degree of automation, high reliability and good compatibility with computers. Therefore, its application is quite extensive. Such as target acquisition, surveillance navigation and guidance, etc.

In recent years, with the development of uncooled red detector technology, the infrared thermal imaging system developed by this technology has been widely used in various fields. Compared with the traditional white light and low-light viewing glasses, the infrared peripheral viewing mirror has more practical application advantages. Compared with the image intensifier, the thermal imager enables the operator to see farther, and is not limited by the light conditions. Can be used at night.

Contents of the invention

The main problem to be solved by the present invention is to invent an infrared peripheral observation mirror that can be used both during the day and at night, has a long observation distance and good imaging quality.

The technical scheme adopted to realize the above object of the present invention is: the entrance of the infrared objective lens group is provided with a protective glass and an upper reflector, the converging point of the objective lens group is provided with an uncooled infrared detector, and the image of the uncooled infrared detector is transmitted to the OLED, The image plane of the OLED is connected to the entrance of the eyepiece set.

The protective glass is installed on the head shell of the device; the middle shell is connected to the head shell, and the reflector group and the objective lens set are installed accordingly; the eyepiece set is connected to the middle shell; The handwheel and the circle-view handwheel, the gear on the circle-view handwheel meshes with the circle-view gear carried by the rotating seat provided on the middle housing, and the gear on the pitch handwheel meshes with the pitch gear on the reflector group.

The protective glass is fixed on the head casing of the device through a fixing plate, a cover plate and connecting screws. A desiccant group and a nitrogen filling nozzle are arranged in the head casing, and a desiccant is housed in the desiccant group.

The eyepiece group is provided with a power switch, control buttons, brightness adjustment knobs and contrast adjustment knobs. The assembled eyepiece of the eyepiece group is connected to the eyepiece connecting plate by screws, and then connected to the lower housing by screws. The power switch, control buttons, Both the brightness adjustment knob and the contrast adjustment knob are set in the lower case, and there are 6 control buttons, which are fast switching, imaging fine-tuning, infrared core black and white hot switching, infrared core non-uniformity correction, and electronic zoom buttons. There are also a pair of handles on both sides.

The specific technical performance indicators of this device are as follows:

1. Optical properties

1) Magnification: 2.45 ^× /5 ^×

2) Field of View: Large Field of View: 9°×4°

Small field of view: 4°×3°

3) Exit pupil diameter: φ72mm

4) Exit pupil distance: 50mm

5) Observation distance: 1500m (upright person)

2 Electrical properties

1) Detector: uncooled 640×512 alum oxide, pixel size 17μmm

2) OLED Microdisplay: SVGA097SG

3) Working voltage: DC 24±6V

3 mechanical properties

1) Peripheral vision adjustment: 360°

2) Pitch adjustment range: -5°～+12°

4 Weight and Dimensions

1) Sight glass weight: ≤22kg (including battery)

2) Dimensions of the host: ≤316mm×350mm×443mm.

The beneficial technical effects of the present invention are: under all-weather conditions during the day or night, the infrared radiation naturally emitted by the object is collected by the objective lens group through the reflector, and the radiant energy is concentrated on the uncooled infrared detector. Infrared radiation is converted into an electrical signal, and after amplification and processing, it is displayed on a micro video monitor (OLED), and the thermal image invisible to the human eye is converted into an optical image on the display screen, and then magnified by the eyepiece for the human eye Observation, thus solving the problem of observation both day and night, while also solving the problem of self-exposure.

Description of drawings

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Figure 1 is the overall structure diagram of the observation mirror.

Fig. 2 is an optical system diagram of the present invention.

Fig. 3 is a structure diagram of the header group of the present invention.

Fig. 4 is a structural diagram of the central group of the present invention.

Fig. 5 is a structural diagram of the eyepiece group of the present invention.

Detailed ways

Referring to Fig. 1, the overall structure of the present invention is mainly composed of head group (B), middle group (C) and eyepiece group (D).

Referring to Fig. 2, the optical system (A) of the present invention consists of a protective glass (1), an upper mirror (2), an objective first lens (3), an objective second lens (4), an objective third lens (5), Objective fourth lens (6), uncooled infrared detector movement assembly (7), OLED (8), eyepiece first lens (9), eyepiece second lens (10), eyepiece third lens (11), The eyepiece first cemented lens (12), the eyepiece sixth lens (13), and the eyepiece seventh lens form (14).

Referring to Figure 3, the head group (B) of the present invention consists of a protective glass (1), a head housing (15), a fixed plate (16), a cover plate (17), a dryer group (18) and an inflation nozzle ( 19) etc. composition. The protective glass (1) is fixed on the head shell (15) through the fixing plate (16), the cover plate (17) and the connecting screws. A desiccant is installed in the dryer group (18), and whether there is water vapor inside the product can be judged by the color of the desiccant in the dryer group (18). The head group (B) is attached to the middle group by set screws.

Referring to Fig. 2 and Fig. 3, the working principle of the present invention is: under all-weather conditions during the day or night, the infrared radiation emitted naturally by the object is collected by the objective lens group through the reflector, and the radiant energy is converged to the uncooled infrared detector , the detector converts the infrared radiation of the scene into an electrical signal, and after amplification and processing, it is displayed on a micro video monitor (OLED), and the thermal image invisible to the human eye is converted into an optical image on the display screen, and then passed through The eyepiece is magnified for human observation.

Referring to Fig. 4, the middle group (C) is composed of mirror group (19), middle housing (20), pitch hand wheel (21), circumference view hand wheel (22), pitch gear (23), circumference view gear (24 ), rotating seat (25) and so on. The reflector group (19) is connected to the rotating seat (25) by screws, and the rotating seat (25) is connected to the peripheral viewing gear (24) by threads, and the peripheral viewing gear (24) and the peripheral viewing hand wheel (22) pass through the gear Interlocking with each other, rotating the peripheral viewing handwheel (22) drives the peripheral viewing gear (24) to perform peripheral viewing rotation. The pitching gear (23) and the pitching handwheel (21) are meshed with each other through the gears, and the pitching handwheel (21) is rotated to drive the pitching gear (23) to rotate, and the pitching movement of the mirror (2) is realized through the transmission between the gear trains .

Referring to Figure 5, the eyepiece group (D) consists of an eyepiece (26), an eyepiece connecting plate (27), a lower housing (28), a handle (29), a power switch (30), a power indicator light (31), and control buttons ( 32), brightness adjustment knob (33), contrast adjustment knob (34), etc. The eyepiece (26) is connected to the eyepiece connecting plate (27) by screws, and is connected to the lower housing (28) by screws. The handle (29) is connected to the lower housing (28) by screws, and the handle (29) is held with both hands to prevent the human body from hitting the product when the vehicle is shaking during use and observation. The power switch (30) is fixed on the lower casing (28). After the power is turned on, the power switch (30) is turned on, and the power indicator light (31) emits red light, indicating that the power supply of the product is normal. The control buttons (32) are connected to the lower casing (28) through button threads, and there are 6 control buttons (32) in total, which can realize fast switching of field of view, fine-tuning of imaging, thermal switching of black and white infrared cores, and non-uniformity correction of infrared cores And electronic amplification and other functions. The brightness adjustment knob (33) and the contrast adjustment knob (34) are connected to the lower housing (28) through threads, so as to realize the brightness and contrast adjustment of the OLED display device.

Claims (4)

1. a kind of infrared panoramic peephole, it is characterized in that: the entrance setting protection glass and upper reflector of infrared objective group, object lens Non-refrigeration infrared detector is arranged in the convergent point of group, and the image of non-refrigeration infrared detector is transmitted to OLED, and the image planes of OLED connect It is connected to the entrance of eyepiece group.

2. infrared panoramic peephole according to claim 1, it is characterized in that: installation protection glass on the head shell of the present apparatus Glass；Central enclosure connects head shell, according to this installation reflection microscope group, objective lens；Eyepiece group is connected to central enclosure；Central enclosure On be respectively provided with pitching handwheel and panorama handwheel with gear, the rotation seat being arranged on the gear and central enclosure on panorama handwheel The panorama gear of institute's band engages, and the gear on pitching handwheel is engaged with the pitching gear in reflection microscope group.

3. infrared panoramic peephole as described in claim 2, it is characterized in that: the protection glass by fixed plate, cover board with And attachment screw is fixed on the head shell of the present apparatus, and drier group and nitrogen charging gas nozzle, drier are provided in head shell Group is provided with desiccant.

4. infrared panoramic peephole as described in claim 2, it is characterized in that: be provided in eyepiece group power switch, control by The assembling eyepiece of key, brightness regulation knob and contrast adjustment knob, eyepiece group is connected by screw on eyepiece connecting plate, It is connected by screw in lower case again, the power switch, control button, brightness regulation knob and contrast adjustment knob It is all set to lower case, control button shares 6, is respectively switched fast, fine tuning is imaged, is infrared machine core black and white hot-swap, red Outer machine core Nonuniformity Correction and electronics amplifying key-press are additionally provided with a pair of of handle in lower case two sides.