CN107632297B - An ultra-light laser irradiator - Google Patents

Abstract

The invention discloses an ultra-light laser irradiator with the functions of automatic control of the optical axis, target indication and distance measurement, including a laser emitter, a laser receiver and visual sight, a laser distance measurement module, an optical axis controller, and a projection display and signal handlers. The laser emitter of the present invention is responsible for emitting the laser beam, the laser receiver and the visual aiming device receive the diffusely reflected laser echo and natural light of the target, the laser ranging module determines the target distance according to the emission signal and the echo signal, and then the signal is processed The optical axis controller calculates the optical axis control angle according to the target distance, and then the optical axis controller adjusts the light emitting angle of the laser emitter; at the same time, the target distance, optical axis angle and aiming reticle are displayed on the user's visual aiming field of view through the projection display middle. The invention has small volume, light weight, low power consumption and is convenient to carry.

Description

An ultra-light laser irradiator

technical field

The invention relates to a laser irradiation device, in particular to an ultra-light laser irradiation device with the functions of automatic optical axis control, target indication and distance measurement.

Background technique

Since the advent of the laser, the needs of the military field have always guided the development of laser technology. The laser irradiator is a kind of increasingly mature military laser equipment, which emits laser light to the target, and the guided munition finds the target according to the diffuse reflection beam of the target, and strikes it. Traditional laser irradiators have problems such as large volume, high mass, and high power consumption, and do not have the function of automatically adjusting the inclination angle of the emitted beam according to the target distance.

Contents of the invention

In order to solve the problems of large volume, large mass, and high power consumption of traditional laser irradiators, the present invention provides an ultra-light laser irradiator with functions of automatic optical axis control, target indication and distance measurement, which is small in size, light in weight, and Low power consumption, easy to carry.

The technical solution of the present invention is to provide an ultra-light laser irradiator, which is special in that it includes a laser emitter 1, a laser receiving and visual aiming device 2, a laser ranging module 3, an optical axis controller 4, a projection Display 5 and signal processor 6;

The above-mentioned laser transmitter 1 is used to emit a laser beam to irradiate the target;

The above-mentioned laser receiving and visual aiming device 2 is used for receiving the laser echo signal diffusely reflected by the target and observing and aiming at the selected target;

The above-mentioned laser ranging module 3 is used to calculate the target distance according to the time difference between the emission signal and the echo signal, and send the calculation result to the signal processor 6;

The above-mentioned signal processor 6 is used to send a control signal to the laser transmitter 1 to drive its output light, and calculate the optical axis control angle according to the target distance, send an optical axis control angle control command to the optical axis controller 4, and send the target to the projection display 5. Calculation results of distance and optical axis control angle;

The above-mentioned optical axis controller 4 automatically controls the optical axis angle according to the optical axis control angle control command;

The above-mentioned projection display 5 is used for displaying the calculation results of the target distance and the control angle of the optical axis and the aiming crosshair projection in the visual aiming field of view of the user.

Further, the above-mentioned laser transmitter 1 includes a drive circuit 11, a solid-state laser 12, and a beam splitter 13 arranged in sequence along the optical path, and also includes a first avalanche diode 14 arranged in the transmission optical path of the beam splitter 13 and arranged in turn on the said beam splitter 13. The beam splitter 13 reflects the first one-dimensional adjustment mirror 15 and the beam expander mirror group 16 in the light path;

The drive circuit 11 is connected to the signal processor 6, and is used to drive the solid-state laser 12 to emit a laser beam according to the trigger signal sent by the signal processor 6;

The above-mentioned solid-state laser 12 is used to emit a laser beam under the driving signal of the driving circuit 11;

The beam splitter 13 is used to split the laser beam emitted by the solid-state laser 12 into two beams;

The above-mentioned first avalanche diode 14 is used to receive the laser light transmitted through the beam splitter 13, and send a timing start signal to the laser ranging module 3;

The above-mentioned first one-dimensional adjustment mirror 15 is used to adjust the light output direction of the laser light reflected by the beam splitter 13 and entering the beam expander mirror group 16;

In order to increase the beam expansion magnification and reduce the wave aberration of the transmitting system, the above-mentioned beam expander lens group 16 includes three lenses coated with anti-reflection coatings whose curvature radii are sequentially increased along the optical path to expand the laser beam irradiating the target. diameter.

Further, the solid-state laser 12 includes a semiconductor pump source 121, a coupling lens group 122, a Nd:YAG crystal 123, a polarizer 124, a Q switch 125, and a partial reflector 126 arranged in sequence along the optical path;

The above-mentioned Nd:YAG crystal 123 is a working substance, and its input end is coated with a dielectric film layer that is antireflective to pump light and fully reflective to laser light;

The above-mentioned semiconductor pump source 121 adopts an end-pumping method to excite the Nd:YAG crystal 123 to realize particle population inversion;

The coupling lens group 122 is used to condense the pump light;

The polarizer 124 is used to convert the light beam radiated by the working substance into linearly polarized light;

The above-mentioned Q switch 125 is used to modulate laser energy and pulse according to the driving signal sent by the driving circuit 11;

The partial reflection mirror 126 and the dielectric film layer at the input end of the Nd:YAG crystal 123 together form an optical resonant cavity.

The device of the solid-state laser is simple, the pumping beam matches well with the resonant cavity mode, and the working substance absorbs the pumping light more fully.

Further, the solid-state laser 12 also includes a semiconductor pump source radiator 127 for dissipating heat from the semiconductor pump source 121; the semiconductor pump source radiator 127 includes a copper heat spreader 1271, a temperature sensor 1272, a TEC1273, fins type copper radiator 1274;

The above-mentioned copper heat expansion plate 1271 is installed on the bottom of the semiconductor pump source 121; the above-mentioned temperature sensor 1272 is installed on the installation surface of the copper heat expansion plate 1271 for monitoring and feeding back the working temperature of the semiconductor pump source 121; the cold end of the above-mentioned TEC1273 Close to the bottom of the copper heat expansion plate 1271, the hot end of the TEC1273 is installed with a finned copper radiator 1274 as a heat dissipation terminal.

Further, the above-mentioned solid-state laser 12 also includes a Nd:YAG crystal radiator 128 for cooling the Nd:YAG crystal 123;

The above-mentioned Nd:YAG crystal radiator 128 includes an aluminum crystal support 1281 for installing the Nd:YAG crystal 123 and a cooling air duct 1282 located on the mounting surface of the aluminum crystal support 1281 .

Further, the above-mentioned laser receiving and visual collimator 2 includes a second one-dimensional adjusting mirror 21, a refracting optical path reflector 22, an objective lens group 23, an image transfer prism 24 and a beam splitting prism 25 arranged sequentially along the optical path, and also includes The second avalanche diode 26 in the reflected light path of the prism 25 and the eyepiece group 27 positioned in the transmitted light path of the dichroic prism 25;

The above-mentioned second one-dimensional adjustment mirror 21 is parallel to the mirror surface of the first one-dimensional adjustment mirror 15, and is used to receive the laser echo signal diffusely reflected by the target and adjust the incident light direction of the refracting optical path reflector 22;

Above-mentioned deflection optical path reflector 22 is parallel with the mirror surface of beam splitter 13, is used for refracting optical path, makes optical axis of optical path and objective lens group 23, eyepiece group 27 common optical axes;

The above-mentioned objective lens group 23 is used for imaging the selected target, forming an inverted real image;

Above-mentioned image transfer prism 24 is used for turning upside down the inverted image formed by objective lens group 23, making it upright;

The dichroic prism 25 is used to reflect the received laser beam to the second avalanche diode 26 and transmit the visible light band to the eyepiece group 27 for visual aiming;

The above-mentioned second avalanche diode 26 is used to receive the laser beam reflected by the dichroic prism 25, that is, the laser echo signal, and send a timing stop signal to the laser ranging module 3;

The above-mentioned eyepiece group 27 is used to further enlarge the erected real image formed by the transfer prism 24 to form an erected virtual image.

Further, in order to reduce the equivalent optical path, the above-mentioned image relay prism 24 includes a Porro No. 2 image relay prism, the processing is simple, there is no dispersion phenomenon, and the handedness does not change; in order to improve the imaging quality, the above-mentioned eyepiece group 27 includes two Block gluing mirror.

Further, the above-mentioned optical axis controller 4 includes a motion controller 41, a DC servo motor 42, a photoelectric encoder 43, a worm gear 44 and a mirror holder 45,

The mirror base 45 is used to install the first one-dimensional adjustment mirror 15 and the second one-dimensional adjustment mirror 21 whose mirror surfaces are parallel to each other;

The motion controller 41 is connected to the signal processor 6, and is used to control the motion state of the DC servo motor 42 according to the optical axis control angle calculated by the signal processor 6;

The above-mentioned DC servo motor 42 is used to drive the rotation of the mirror base 45 to drive the first one-dimensional adjustment mirror 15 and the second one-dimensional adjustment mirror 21 to rotate;

The photoelectric encoder 43 is used to feed back the motion state of the DC servo motor 42 to the motion controller 41 to realize closed-loop control;

The worm gear 44 is used to transmit the motion of the DC servo motor 42 to the mirror base 45 to drive the mirror base 45 to rotate.

Further, the above-mentioned projection display 5 includes a display screen 51, a projection condenser lens group 52, a dichroic prism 25, and an eyepiece group 27 arranged in sequence along the optical path; 27;

The above-mentioned display screen 51 is connected with the signal processor 6 for displaying the target distance, the optical axis control angle and the aiming reticle;

The above-mentioned projection condenser lens group 52 is used to scale and image the information presented on the display screen 51 to the dichroic prism 25;

The above-mentioned dichroic prism 25 is used to reflect the light of the display screen 51 band to the eyepiece group 27;

The above-mentioned eyepiece group 27 includes two gluing lenses, which are used to further enlarge the imaging on the dichroic prism 25 to form an upright virtual image.

Further, the projection condenser lens group 52 includes a convex lens 521, a first cemented mirror 522, a folding mirror 523, a concave lens 524, and a second cemented mirror 525 arranged sequentially along the optical path, for zooming and imaging the information on the display screen 51 and The light path is refracted so that the formed image is projected on the dichroic prism 25 .

The beneficial effects of the present invention are:

1. The present invention controls the optical axis controller through a signal processor to realize automatic control of the optical axis; it also has a laser ranging module to realize target indication and ranging functions;

2. The present invention uses a solid-state laser, so that the entire laser irradiator has a simple structure, small volume, and light weight; the ultra-light laser irradiator of the present invention has an overall size of 160mm*120mm*70mm and a mass of 0.8kg;

3. The semiconductor pumping source radiator and the Nd:YAG crystal radiator are also included in the solid-state laser of the present invention, and the semiconductor pumping is derived from the Nd:YAG crystal to dissipate heat respectively. It leads to an increase in the threshold current of the laser, which in turn causes a decrease in the output power of the laser; (2) prevents the narrowing of the band gap of the active layer material due to excessive temperature, which in turn causes the wavelength of the output laser to move to the long-wave direction, that is, the red shift phenomenon ;

4. The beam expander lens group in the laser transmitter of the present invention includes three lenses coated with an anti-reflection film, the beam expansion magnification is large, and the wave phase difference of the transmitting system is small.

Description of drawings

Fig. 1 is a composition block diagram of the ultra-light laser irradiator of the present invention.

Fig. 2 is a block diagram of the laser transmitter of the present invention.

Fig. 3 is an optical path diagram of the laser emitter of the present invention.

Fig. 4 is a block diagram of the composition of the solid-state laser of the present invention.

Fig. 5 is a schematic diagram of the composition of the solid-state laser of the present invention.

Fig. 6 is a block diagram of the semiconductor pump source heat sink of the present invention.

Fig. 7 is a block diagram of the composition of the crystal radiator of the present invention.

Fig. 8 is a block diagram of the composition of the laser receiving and visual aiming device of the present invention.

Fig. 9 is an optical path diagram of the laser receiving and visual collimator of the present invention.

Fig. 10 is a block diagram of the optical axis controller of the present invention.

FIG. 11 is a block diagram of the projection display of the present invention.

Fig. 12 is an optical path diagram of the projection display of the present invention.

The reference signs in the figure are: 1-laser transmitter, 2-laser receiver and visual sight, 3-laser distance measuring module, 4-optical axis controller, 5-projection display, 6-signal processor;

11-drive circuit, 12-solid-state laser, 13-beam splitter, 14-first avalanche diode, 15-first one-dimensional adjustment mirror, 16-beam expander group;

121-semiconductor pump source, 122-coupling lens group, 123-Nd:YAG crystal, 124-polarizer, 125-Q switch, 126-partial mirror, 127-semiconductor pump source radiator, 128-Nd:YAG Crystal radiator;

1271-copper heat expansion plate, 1272-temperature sensor, 1273-TEC, 1274-finned copper radiator;

1281-aluminum crystal support, 1282-radiation duct;

21-second one-dimensional adjustment mirror, 22-refracting optical path reflector, 23-objective lens group, 24-image transfer prism, 25-beam splitting prism, 26-second avalanche diode, 27-eyepiece group;

41-motion controller, 42-DC servo motor, 43-photoelectric encoder, 44-worm gear, 45-mirror holder;

51-display screen, 52-projection condenser lens group, 521-convex lens, 522-the first doubled mirror, 523-folding mirror, 524-concave lens, 525-the second doubled mirror.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

As can be seen from Fig. 1, the ultra-light laser irradiator of the present invention includes a laser emitter 1, a laser receiving and visual aiming device 2, a laser ranging module 3, an optical axis controller 4, a projection display 5 and a signal processor 6; Wherein, the signal processor 6 is electrically connected with the laser transmitter 1, the laser ranging module 3, the optical axis controller 4, and the projection display 5; the laser ranging module 3 is also connected with the laser transmitter 1 and the laser receiver respectively. 2-phase connection.

As can be seen from Fig. 2 and Fig. 3, the laser emitter 1 of the present invention comprises a drive circuit 11, a solid-state laser 12, and a beam splitter 13 arranged in sequence along the optical path, and also includes the first avalanche diode arranged in the transmitted light path of the beam splitter 13 14 and the first one-dimensional adjustment mirror 15 and the beam expander mirror group 16 that are arranged in turn in the reflection light path of the beam splitter 13; The drive circuit 11 is electrically connected to the signal processor 6 .

As can be seen from FIGS. 4 and 5, the solid-state laser 12 of the present invention includes a semiconductor pump source 121, a coupling lens group 122, a Nd:YAG crystal 123, a polarizer 124, a Q switch 125, and a partial reflector arranged in sequence along the optical path. 126, also includes semiconductor pump source radiator 127, Nd:YAG crystal radiator 128;

Nd:YAG crystal 123 is the working material of the laser, and its input end is coated with a dielectric film layer that is antireflective to the pump light and fully reflects the laser light; the partial reflector 126 is composed of the dielectric film layer at the input end of the Nd:YAG crystal 123 Optical cavity.

The semiconductor pump source radiator 127 is the cooling device of the semiconductor pump source 121. As can be seen from FIG. 1274; the copper heat expansion plate 1271 is installed at the bottom of the semiconductor pump source 121; the temperature sensor 1272 is installed on the installation surface of the copper heat expansion plate 1271, and is used to monitor and feedback the working temperature of the semiconductor pump source 121; the cold end of TEC1273 Close to the bottom of the copper heat expansion plate 1271, the hot end of the TEC1273 is installed with a finned copper radiator 1274 as a heat dissipation terminal. The heat dissipation path of semiconductor pump source 121 is: semiconductor pump source 121—copper heat expansion plate 1271—cold end of TEC1273—hot end of TEC1273—finned copper radiator 1274—environmental heat sink.

Nd:YAG crystal radiator 128 is the cooling device of Nd:YAG crystal 123, as can be seen from Fig. 7, Nd:YAG crystal radiator 128 comprises the aluminum crystal support 1281 that is used to install Nd:YAG crystal 123 and is positioned at aluminum Make the heat dissipation air duct 1282 on the mounting surface of the crystal support. The aluminum crystal support 1281 plays the role of support, fixation and heat conduction. The heat dissipation path of the Nd:YAG crystal 123 is: Nd:YAG crystal 123—aluminum crystal support 1281—radiation air duct 1282—environmental heat sink. The beam divergence angle of the laser pulse output by the solid-state laser 12 of the present invention is within 0.125 mrad, the energy can reach 30 mJ, the pulse width is 10 ns, and the energy instability is only 1.18%.

As can be seen from Fig. 8 and Fig. 9, the laser receiving and visual aiming mirror 2 comprises a second one-dimensional adjusting mirror 21, a refracting optical path reflector 22, an objective lens group 23, a relay prism 24 and a dichroic prism arranged in sequence along the optical path 25, also comprise the second avalanche diode 26 that is positioned at the dichroic prism 25 reflection light paths and the eyepiece group 27 that is positioned at the dichroic prism transmission light path; The optical path conversion reflector 22 is parallel to the mirror surface of the beam splitter 13 , the objective lens group 23 and the eyepiece group 27 have a common optical axis, and are parallel to the light emitting direction of the solid-state laser 12 . The image relay prism 24 is selected from Pro 2 image relay prism, which has a small equivalent optical path, simple processing, no dispersion phenomenon, and no change in handedness. The eyepiece group 27 includes two gluing mirrors to further improve the imaging quality.

It can be seen from FIG. 10 that the optical axis controller 4 includes a motion controller 41 , a DC servo motor 42 , a photoelectric encoder 43 , a worm gear 44 , and a mirror holder 45 . The motion controller 41 is electrically connected to the signal processor 6 , and the first one-dimensional adjustment mirror 15 and the second one-dimensional adjustment mirror 21 are installed on the mirror base 45 . The optical axis adjustment range of the optical axis controller 4 is 0-15°, and the control precision is 0.01°.

11 and 12, it can be seen that the projection display 5 includes a display screen 51, a projection condenser lens group 52, a dichroic prism 25, and an eyepiece group 27 arranged sequentially along the optical path, wherein the display screen 51 is electrically connected to the signal processor 6 . The projection display 5 shares the beam splitting prism 25 and the eyepiece group 27 with the laser receiving and visual collimator 2 .

Working process of the present invention is as follows:

The driving circuit 11 of the laser transmitter 1 generates a signal for driving the solid-state laser 12 to emit laser pulses under the action of the trigger signal sent by the signal processor 6 . The laser pulse with a diameter of 3 mm output by the solid-state laser 12 passes through the beam splitter 13 and is divided into two parts: one part passes through the beam splitter 13 and enters the first avalanche diode 14 to be converted into an electrical signal and sent to the laser ranging module 3 to generate a timing start signal; A part is reflected by the beam splitter 13, and then the optical axis angle is adjusted by the first one-dimensional adjusting mirror 15, and then the beam expander group 16 composed of three lenses coated with an anti-reflection film is passed, and the beam diameter is increased to 40mm, and finally Shoot at the target.

The detailed process of emitting laser pulses from the solid-state laser 12 is as follows: the semiconductor pump source 121 adopts an end pumping mode, and the pump light emitted by it passes through the coupling lens group 122 and then enters the Nd:YAG crystal 123, so that the Nd:YAG crystal 123 realizes the number of particles. reverse. The light beam output by the Nd:YAG crystal 123 becomes linearly polarized light after passing through the polarizer 124 . When the linearly polarized light passes through the Q switch 125 with voltage applied, a phase delay occurs, the beam transmitted by the partial reflector 126 is lost, and the beam reflected by it passes through the Q switch 125 again to cause a phase delay, and finally the polarization direction is vertical The linearly polarized light in the polarization direction of the polarizer 124 cannot pass through the polarizer 124 . In this case, the solid-state laser 12 cannot oscillate, and the energy level of the laser keeps accumulating particles. Under the action of the signal sent by the drive circuit 11, the Q switch 125 removes the voltage at regular intervals, and the generated light beam can oscillate back and forth between the total reflection dielectric film layer at the input end of the Nd:YAG crystal 123 and the partial reflection mirror 126, finally Produces high-energy short-pulse laser light.

The mixed light composed of the laser diffusely reflected back by the target and the natural light is received by the laser receiver and the visual sighting device 2 . The mixed light first adjusts its optical axis angle through the second one-dimensional adjustment mirror 21, and then after being reflected by the refracting optical path reflector 22, its propagation direction is parallel to the optical axis direction of the objective lens group 23 and the eyepiece group 27. After the mixed light passes through the objective lens group 23 , its image is turned upside down, so the image formed by the objective lens group 23 is turned upside down again by using the image transfer prism 24 . Subsequently, the mixed light passes through the splitter prism 25 and is divided into two parts. The laser echo is reflected by the splitter prism 25 and enters the second avalanche diode 26 to be converted into an electrical signal and sent to the laser distance measuring module 3 to generate a timing stop signal; the natural light passes through the splitter The prism 25 forms an image through the eyepiece group 27, which is convenient for the operator to observe and visually aim at the target.

The laser ranging module 3 calculates the target distance according to the time interval between the timing start signal and the timing stop signal, and sends the calculation result to the signal processor 6 . The signal processor 6 calculates the optical axis angle according to the target distance, and then sends an optical axis angle control command to the motion controller 41 . The motion controller 41 performs closed-loop control on the angular position of the rotor of the DC servo motor 42 after receiving the command, and its control accuracy is guaranteed by the angular position information feedback of the photoelectric encoder 43 . The DC servo motor 42 drives the worm gear 44 to rotate the mirror base 45, and then drives the first one-dimensional adjustment mirror 15 and the second one-dimensional adjustment mirror 21 mounted on the mirror base 45 to rotate by the same angle, so that the mirror surfaces of the two are always parallel. In this way, it can be ensured that the direction of the reflected light of the second one-dimensional adjustment mirror 21 does not change all the time during the process of changing the inclination angle of the emitted light beam.

While controlling the optical axis angle, the signal processor 6 sends the target distance and the optical axis angle to the display screen 51, and the target distance, optical axis angle and aiming reticle displayed on the display screen 51 are imaged by the projection condenser lens group 52, and then passed through the dichroic prism 25 is reflected to the eyepiece group 27 for imaging, so that the operator can see the aiming reticle, target distance, and optical axis angle information in the aiming field of view.

The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solutions disclosed in the present invention, those skilled in the art can make some replacements and modifications to some of the technical features according to the disclosed technical content without creative work. Deformation, these replacements and deformations are all within the protection scope of the present invention.

Claims (9)

1. a kind of microlight-type laser irradiation device, it is characterised in that: including laser emitter (1), laser pick-off and visual sight device (2), laser ranging module (3), optical axis controller (4), the projection display (5) and signal processor (6)；

The laser emitter (1) irradiates target for emitting laser beam；

The laser pick-off and visual sight device (2) are for receiving by the irreflexive laser echo signal of target and to selected mesh Mark is observed and aims at；

The laser ranging module (3) is used to calculate target range according to the time difference between transmitting signal and echo-signal, and Calculated result is sent to signal processor (6)；

The signal processor (6) be used for laser emitter (1) send drive its control signal for going out light, and according to target away from Angle is controlled from optical axis is calculated, optical axis is sent to optical axis controller (4) and controls angle control command, sent out to the projection display (5) Target range and optical axis is sent to control the results of measuring of angle；

The optical axis controller (4) controls angle control command according to optical axis and carries out automatically controlling to optical axis angle；

The projection display (5) is used to project the results of measuring and crossline of sight silk of target range and optical axis control angle It is shown in the visual sight visual field of user；The laser emitter (1) includes the driving circuit set gradually along optical path (11), solid state laser (12) and spectroscope (13) further include the first snow being arranged in the spectroscope (13) transmitted light path Collapse diode (14) and the first one-dimensional adjustment mirror (15) being successively set in the spectroscope (13) reflected light path and beam expanding lens Group (16)；

The driving circuit (11) connect with signal processor (6), and the trigger signal for being sent according to signal processor (6) is driven Dynamic solid state laser (12) emit laser beam；

The solid state laser (12) is used to emit laser beam under the driving signal effect of driving circuit (11)；

The spectroscope (13) is used to the laser beam that solid state laser (12) emit being divided into two bundles light；

First avalanche diode (14) is for receiving the laser for being transmitted through spectroscope (13), to laser ranging module (3) Send transmitting signal, that is, timing commencing signal；

Laser of first one-dimensional adjustment mirror (15) for adjusting the mirror that is split (13) reflection and entering beam expanding lens group (16) Light direction；

The microscope group (16) that expands includes that three pieces that radius of curvature the is sequentially increased lens for being coated with anti-reflection film are set gradually along optical path, For expanding the laser beam spot sizes of irradiation target.

2. a kind of microlight-type laser irradiation device according to claim 1, it is characterised in that: solid state laser (12) packet Include semiconductor pumping sources (121), coupled lens group (122), the Nd:YAG crystal (123), polarizing film set gradually along optical path (124), Q-switch (125) and partially reflecting mirror (126)；

The Nd:YAG crystal (123) is operation material, and input terminal is coated with medium anti-reflection to pump light, to laser total reflection Film layer；

The semiconductor pumping sources (121) use end pumping mode, for emitting the pumping for making operation material population inversion Light；

The coupled lens group (122) is used for pump light optically focused；

The polarizing film (124), the light beam for giving off operation material are converted into linearly polarized light；

The driving signal modulation laser energy and pulse that the Q-switch (125) is used to be issued according to driving circuit (11)；

The media coating of the partially reflecting mirror (126) and Nd:YAG crystal (123) input terminal collectively constitutes optical resonator.

3. a kind of microlight-type laser irradiation device according to claim 2, it is characterised in that: the solid state laser (12) is also Including semiconductor pumping sources radiator (127) for radiating to semiconductor pumping sources (121)；The semiconductor pumping sources dissipate Hot device (127) includes that red copper expands hot plate (1271), temperature sensor (1272), TEC (1273), rib-type copper radiator (1274)；

The red copper expands the bottom that hot plate (1271) are mounted on semiconductor pumping sources (121)；Temperature sensor (1272) peace Expand hot plate (1271) mounting surface mounted in red copper, for being monitored feedback to the operating temperature of semiconductor pumping sources (121)；It is described The cold end of TEC (1273) is close to the bottom that red copper expands hot plate (1271), and rib-type copper radiator is installed in the hot end of TEC (1273) (1274) as heat dissipation terminal.

4. a kind of microlight-type laser irradiation device according to claim 2, it is characterised in that: the solid state laser (12) is also Including Nd:YAG crystal radiator (128), for radiating to Nd:YAG crystal (123)；

The Nd:YAG crystal radiator (128) includes the aluminum crystal support (1281) for installing Nd:YAG crystal (123) And it is located at the heat dissipation wind channel (1282) on aluminum crystal support (1281) mounting surface.

5. a kind of microlight-type laser irradiation device according to claim 1, it is characterised in that: the laser pick-off with visually take aim at Quasi- device (2) include the second one-dimensional adjustment mirror (21) set gradually along optical path, optical path of turning back reflecting mirror (22), objective lens (23), Image rotation prism (24) and Amici prism (25) further include the second avalanche diode in Amici prism (25) reflected light path (26) and be located at Amici prism (25) transmitted light path in eyepiece group (27)；

Second one-dimensional adjustment mirror (21) is parallel with the first one-dimensional adjustment mirror surface of mirror (15), for receiving by target diffusing reflection Laser echo signal and adjustment turn back the incident light direction of optical path reflecting mirror (22)；

The optical path reflecting mirror (22) of turning back is parallel with the mirror surface of spectroscope (13), for optical path to be turned back, make light path light axis with Objective lens (23), eyepiece group (27) common optical axis；

The objective lens (23) are for being imaged selected target, at the real image of handstand；

The image rotation prism (24) is used to objective lens (23) institute be allowed to upright as spinning upside down at handstand；

The Amici prism (25), the laser beam for reflection receivable to the second avalanche diode (26) and transmit visible light wave Section to eyepiece group (27) are used for visual sight；

Second avalanche diode (26) is used to receive the laser beam i.e. laser echo signal of Amici prism (25) reflection, to Laser ranging module (3) sends timing stop signal；

The eyepiece group (27) is for upright real image formed by image rotation prism (24) to be further amplified, the virtual image of Cheng Zhengli.

6. a kind of microlight-type laser irradiation device according to claim 5, it is characterised in that: the image rotation prism (24) includes No. 2 image rotation prisms of one piece of general sieve；The eyepiece group (27) includes two pieces of glued mirrors.

7. a kind of microlight-type laser irradiation device according to claim 1, it is characterised in that: optical axis controller (4) packet Include motion controller (41), DC servo motor (42), photoelectric encoder (43), worm and gear (44) and microscope base (45)；

The microscope base (45) is for installing the mirror surface is parallel to each other first one-dimensional adjustment mirror (15) and the second one-dimensional adjustment mirror (21)；

The motion controller (41) connect with signal processor (6), and the optical axis for being calculated according to signal processor (6) controls Angle controls the motion state of DC servo motor (42)；

The DC servo motor (42) is used to drive the rotation of microscope base (45), drives the first one-dimensional adjustment mirror (15) and the 2nd 1 Dimension adjustment mirror (21) rotation；

The photoelectric encoder (43) is real for feeding back to motion controller (41) motion state of DC servo motor (42) Existing closed-loop control；

The worm and gear (44) is used to drive microscope base (45) to revolve the motion transmission of DC servo motor (42) to microscope base (45) Turn.

8. a kind of microlight-type laser irradiation device according to claim 1, it is characterised in that: the projection display (5) packet Include display screen (51), projection optically focused microscope group (52), Amici prism (25) and the eyepiece group (27) set gradually along optical path；The throwing Shadow display (5) and laser pick-off and visual sight device (2) share Amici prism (25) and eyepiece group (27)；

The display screen (51) is connect for displaying target distance, optical axis control angle and crossline of sight with signal processor (6) Silk；

The information scaling that optically focused microscope group (52) are projected for will present on display screen (51) is simultaneously imaged to Amici prism (25)；

The Amici prism (25) is used to reflect the light of display screen (51) wave band to eyepiece group (27)；

The eyepiece group (27) includes two pieces of glued mirrors, for the imaging on Amici prism (25) to be further amplified, Cheng Zhengli The virtual image.

9. a kind of microlight-type laser irradiation device according to claim 8, it is characterised in that: the projection optically focused microscope group (52) Including the convex lens (521), the first gluing mirror (522), folding axis mirror (523), concavees lens (524) and second set gradually along optical path Glued mirror (525) makes imaging be projected in light splitting rib for the information scaling on display screen (51) to be imaged and optical path of turning back On mirror (25).