CN217443642U - Miniaturized monocular telescope laser range finder - Google Patents
Miniaturized monocular telescope laser range finder Download PDFInfo
- Publication number
- CN217443642U CN217443642U CN202220969384.8U CN202220969384U CN217443642U CN 217443642 U CN217443642 U CN 217443642U CN 202220969384 U CN202220969384 U CN 202220969384U CN 217443642 U CN217443642 U CN 217443642U
- Authority
- CN
- China
- Prior art keywords
- laser
- lens
- light
- prism
- group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The utility model discloses a miniaturized monocular telescope laser range finder, which comprises a receiving and transmitting lens group, a focusing negative lens, a beam splitting prism group, an eyepiece group and a laser range unit; the receiving and transmitting lens group, the focusing negative lens, the beam splitting prism group and the eyepiece group are sequentially arranged from left to right; the transceiving lens group comprises an objective lens and an emitting lens; a groove is formed in one side of the objective lens, and the emission lens is embedded in the groove; the laser ranging unit is used for emitting laser and receiving return laser of the laser emitted by the emitting lens, and calculating the distance; the utility model discloses a receiving and dispatching battery of lens can satisfy laser emission and receipt simultaneously, has realized single section of thick bamboo design and miniaturization.
Description
Technical Field
The utility model relates to a laser technical field, more specifically the utility model relates to a miniaturized monocular telescope laser range finder that says so.
Background
The laser range finder mainly comprises a pulse type laser range finder, a phase type laser range finder and a triangular laser range finder. The most common pulse laser range finder is a telescope laser range finder which comprises a telescope and a laser transmitting and receiving module, and the pulse laser range finder has the following processes: the laser emitted by the range finder is reflected by the measured object and then received by the range finder, the range finder records the round trip time of the laser, half of the product of the light speed and the round trip time is the distance between the range finder and the measured object, and then the distance information is displayed on the focal plane of the eyepiece and is received and read by an observer.
At present, in order to realize the telescope and distance measurement effects, a binocular and a three-cylinder structure are mainly used in the telescope distance measuring instrument in the market, and the telescope distance measuring instrument is often large in size and inconvenient to carry; in order to realize miniaturization, other distance measuring instruments can make the lens as small as possible, and sacrifice certain distance measuring capacity.
Therefore, how to provide a miniaturized monocular telescope is a problem that needs to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a miniaturized monocular telescope makes telescope, transmission and receiving system share a section of thick bamboo, has reduced the volume, realizes the miniaturization.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the device comprises a receiving and transmitting lens group, a focusing negative lens, a beam splitting prism group, an eyepiece group and a laser ranging unit;
the receiving and transmitting lens group, the focusing negative lens, the beam splitting prism group and the eyepiece group are sequentially arranged from left to right;
the transceiving lens group comprises an objective lens and an emission lens; a groove is formed in one side of the objective lens, and the emission lens is embedded in the groove;
the laser ranging unit is used for emitting laser and receiving return laser of the laser emitted by the emitting lens, and calculating the distance.
Further, the laser ranging unit comprises a laser emitting diode and a laser receiver;
the laser emitting diode is used for emitting laser outwards through the emitting lens;
the laser returns through an object and sequentially passes through the objective lens, the focusing negative lens and the beam splitting prism group to obtain the return laser;
and the laser receiver is used for receiving the return laser split by the beam splitting prism component.
Further, the laser ranging unit further comprises a display device; the display device is electrically connected with the laser receiver and is used for displaying the distance between the laser receiver and the object to be measured.
Furthermore, the laser ranging unit further comprises an optical filter, wherein the optical filter is arranged at a receiving end of the laser receiver and is used for transmitting the wave band light emitted by the laser emitter.
Further, the beam splitting prism group comprises a roof half pentaprism, an isosceles prism and a compensation prism; the roof half pentaprism is used for receiving the return laser and the object visible light and folding the light paths of the return laser and the object visible light; the isosceles prism is used for folding the light paths of the return laser and the object visible light and outputting the object visible light; the compensation prism is used for outputting return laser.
Further, the roof half pentaprism comprises a light input surface, a reflecting and outputting surface and a roof surface; the return laser and the object visible light are input from the light input surface, reflected by the reflecting and outputting surface and the roof surface, and output to the isosceles prism from the reflecting and outputting surface.
Further, the isosceles prism includes a light input and reflection surface, a light output and reflection surface, and a splitting surface; the return laser and the object visible light are input by the light input and reflection surface and are reflected to the light splitting surface by the light output and reflection surface, and the light splitting surface is used for outputting the laser to the compensation prism, reflecting the object visible light to the light input and reflection surface for reflection and outputting the light to the eyepiece group by the light output and reflection surface;
the compensation prism comprises a second light splitting surface and a light output surface; the return laser is input from the second light splitting surface and is output to a laser receiver through the light output surface;
the light splitting surface of the compensating prism is connected with the light splitting surface of the isosceles prism in a gluing way;
and the light receiving surface of the roof half pentaprism is parallel to the light output surface of the isosceles prism.
Further, the eyepiece group comprises an eyepiece positive lens and an eyepiece cemented lens; the object visible light sequentially passes through the eyepiece positive lens and the eyepiece cemented lens.
According to the technical scheme, compared with the prior art, the utility model discloses a miniaturized monocular telescope laser range finder, which comprises a laser emitting diode and an emitting lens, wherein the emitting lens is arranged on the emitting lens; the receiving system consists of a laser receiver, an objective lens, a focusing negative lens and a beam splitting prism group; the telescope system is composed of an objective lens, a lens focusing negative lens, a beam splitting prism group and an eyepiece group; offer U type groove in objective lens and handle and be used for placing transmitting lens, by the collocation design of the half pentaprism of veneer prism and roof ridge of isosceles prism and compensation prism combination simultaneously, make laser receiving system and telescope system can share objective lens, and then make telescope, transmission and receiving system share a section of thick bamboo, reduced the system volume, make more small and exquisite light of distancer, realize the distancer miniaturization. In addition, a focusing negative lens is inserted between the objective lens and the beam splitting prism group, so that the length of the objective lens is shortened, and the volume is reduced; make the more small and exquisite light of distancer, realize the distancer miniaturization.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural view of a miniaturized monocular telescopic laser range finder provided by the present invention;
FIG. 2 is a schematic diagram of the optical path of the laser emission system;
FIG. 3 is a schematic diagram illustrating an imaging principle of a transceiving lens group;
FIG. 4 is a schematic diagram of an optical path of a beam splitting prism set;
FIG. 5 is a schematic diagram of the optical path of the object visible light of the monocular of the telescopic system;
FIG. 6 is a schematic diagram of the optical path of the laser receiving system;
wherein, 1 is an objective lens; 2-a focusing negative lens; 3-roof half pentaprism; 4-gluing the prism; 41-an isosceles prism; 42-a compensation prism; 5-LCD liquid crystal display unit; 6-eyepiece cemented lens; 7-eyepiece positive lens; 8-an emission lens; 9-laser emitting diode; 10-a laser receiver; 11-optical filter.
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.
The embodiment of the utility model discloses a miniaturized monocular telescope laser range finder, which comprises a receiving and transmitting lens group, a focusing negative lens 2, a beam splitting prism group, an eyepiece group and a laser range finding unit;
the transceiving lens group, the focusing negative lens 2, the beam splitting prism group and the eyepiece group are sequentially arranged from left to right;
the transceiving lens group comprises an objective lens 1 and an emitting lens 8; one side of the objective lens 1 is provided with a groove, and the emission lens 8 is embedded in the groove;
the laser ranging unit is used for emitting laser and receiving the return laser of the laser emitted by the emitting lens 8 to calculate the distance.
The main purpose of the beam splitting prism group is to fold the light path and reduce the volume; by the light splitting film, the objective lens is shared by the telescope system and the receiving (or transmitting) system, and the distance measurement volume is reduced.
In one embodiment, the laser ranging unit comprises a laser emitting diode 9 and a laser receiver 10;
the laser emitting diode 9 is used for emitting laser to the outside through an emitting lens;
the laser returns through the object and passes through the objective lens 1, the focusing negative lens 2 and the beam splitting prism group in sequence;
and a laser receiver 10 for receiving the laser light split by the beam splitting prism assembly.
As shown in fig. 2, the emitting lens 8 is embedded in the U-shaped groove of the objective lens 1, and the laser emitting diode 99 emits laser light which passes through the emitting lens 8 embedded in the U-shaped groove of the objective lens 1 and then exits, thereby forming an emitting system of the range finder.
When the lens is imaged, the optical path is shown as A in FIG. 3. The lower end of the lens is shielded, the light path is shown as B in figure 3, and the normal and complete imaging cannot be influenced as long as the shielding part does not exceed the position of the optical axis according to the imaging principle of the off-axis light beam and the on-axis light beam. Because the original light which penetrates through and covers part of the object lens is lacked, the brightness of the final image can be weakened, and the normal telescopic function can be met by the design of the single-cylinder range finder only by ensuring that the original complete object lens and 50% of brightness when no vignetting exist in the telescopic system after the object lens is designed by adopting the U-shaped groove.
The laser emitting diode 9 emits laser, the laser is emitted outwards through the emitting lens 8 in the groove and reflected by an obstacle to become return laser and enters the interior through the objective lens 1, the focusing negative lens 2 and the beam splitting prism group can change the light path of the return laser, the return laser is finally received by the laser receiver 10, and the distance is calculated according to the round trip time of the laser.
In this embodiment, the laser ranging unit further includes a display device 5; the display device 5 is arranged between the beam splitting prism group and the eyepiece group; the display device 5 is used for displaying the distance measurement result with the measured object.
The measurement result can be seen while looking far away, so that the result observation is more real-time, convenient and quick; the display device 5 is an LCD.
In another embodiment, the laser ranging unit further includes an optical filter 11, where the optical filter 11 is disposed at a receiving end of the laser receiver 10, and is configured to transmit light in a wavelength band emitted by the laser transmitter and filter light in other wavelength bands in the environment, so as to ensure measurement accuracy.
In another embodiment, the beam splitting prism group includes a roof semi-pentaprism 3, an isosceles prism 41, and a compensation prism 42;
the roof half pentaprism 3 is used for receiving the return laser and the object visible light and folding the light paths of the return laser and the object visible light;
the isosceles prism 41 is used for folding the optical paths of the return laser and the object visible light and outputting the object visible light;
the compensation prism 42 is used to output the return laser light.
In another embodiment, as shown in FIG. 4, roof hemipentaprism 3 includes a light input face 310, a reflecting and output face 311, and a roof face 312; the laser light and the object visible light are input from the light input surface 310, reflected by the reflecting and outputting surface 311 and the roof surface 312 in this order, and finally output from the reflecting and outputting surface 311 to the isosceles prism 41.
In the present embodiment, the isosceles prism 41 includes a light input and reflection surface 410, a light output and reflection surface 411, and a splitting surface 412; the laser and the visible light of the object are input from the light input and reflection surface 410, and are reflected to the light splitting surface 412 through the light output and reflection surface 411, the light splitting surface is used for outputting the laser to the compensation prism 42, reflecting the visible light of the object to the light input and reflection surface 410 for reflection, and outputting to the eyepiece group through the light output and reflection surface 411, so as to realize the function of telescope;
the compensating prism 42 includes a second light splitting surface 420 and a light output surface 421; laser is input 420 from the second light splitting surface and output to the laser receiver 10 through the light output surface 421, and the laser receiver 10 calculates the distance to the obstacle, i.e. the object to be measured, according to the round trip time from the transmission to the reception of the laser, so as to realize the distance measuring function;
the splitting surface of the compensating prism 42 is connected with the splitting surface of the isosceles prism 41 in a gluing way;
the light receiving surface of the roof semi-pentaprism 3 is parallel to the light output surface of the isosceles prism 41.
In another embodiment, the eyepiece group includes an eyepiece positive lens 7 and an eyepiece cemented lens 6;
the object visible light passes through the eyepiece positive lens 7 and the eyepiece cemented lens 6 in this order.
As fig. 5, fig. 5 is the utility model discloses in realize the telescope system of telescope function, visible light gets into from objective lens 1, through focusing lens 2, roof half pentaprism 3 and cemented prism 4, display device 5, eyepiece cemented lens 6 and eyepiece positive lens 7, eyepiece cemented lens comprises a concave lens and a convex lens.
As fig. 6, fig. 6 is the utility model discloses in receive return laser's receiving system, the laser reflection signal of surveyed target passes through objective cemented lens 1, focusing lens 2, roof half pentaprism 3, cemented prism, 4, light filter 11, finally is received by laser receiver 10.
The utility model discloses when guaranteeing telescope field of view luminance, do the U type groove to telescope lens 1 and handle, imbed transmitting lens 8 in the telescope lens, simultaneously, receiving system and telescope system sharing objective lens 1 have realized the monocular design of telescope distancer. The LCD liquid crystal display of transmission formula is added to the eyepiece focal plane, makes this distancer can realize the function of telescope, range finding, demonstration simultaneously with the structure of monocular, has ensured that the telescope range finder volume is little enough, conveniently carries when guaranteeing the range finding ability.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A miniaturized monocular telescope laser range finder is characterized by comprising a receiving and transmitting lens group, a focusing negative lens, a beam splitting prism group, an eyepiece group and a laser range unit;
the receiving and transmitting lens group, the focusing negative lens, the beam splitting prism group and the eyepiece group are sequentially arranged from left to right;
the transceiving lens group comprises an objective lens and an emission lens; a groove is formed in one side of the objective lens, and the emission lens is embedded in the groove;
the laser ranging unit is used for emitting laser and receiving the return laser of the laser emitted by the emitting lens to calculate the distance.
2. The miniaturized monocular laser rangefinder of claim 1, wherein the laser rangefinder unit comprises a laser emitting diode and a laser receiver;
the laser emitting diode is used for emitting laser outwards through the emitting lens;
the laser returns through an object and sequentially passes through the objective lens, the focusing negative lens and the beam splitting prism group to obtain the return laser;
and the laser receiver is used for receiving the return laser split by the beam splitting prism component.
3. The miniaturized monocular laser rangefinder of claim 2, wherein the laser rangefinder unit further comprises a display device; the display device is used for displaying the distance between the object and the measured object.
4. The miniaturized monocular distance measuring device of claim 2, wherein the laser distance measuring unit further comprises a filter disposed at a receiving end of the laser receiver for transmitting the band light emitted from the laser emitting diode.
5. The miniaturized monocular laser rangefinder of claim 2, wherein the beam splitting prism set comprises a roof half-pentaprism, an isosceles prism, and a compensating prism;
the roof half pentaprism is used for receiving the return laser and the object visible light;
the isosceles prism is used for outputting object visible light;
the compensation prism is used for outputting return laser.
6. The miniaturized monocular laser rangefinder of claim 5, wherein the roof half pentaprism comprises a light input face, a reflecting and output face, and a roof face; the return laser and the object visible light are input from the light input surface, reflected by the reflecting and outputting surface and the roof surface, and output to the isosceles prism from the reflecting and outputting surface.
7. The miniaturized monocular laser rangefinder of claim 6, wherein the isosceles prism comprises a light input and reflection surface, a light output and reflection surface, and a beam splitting surface; the return laser and the object visible light are input by the light input and reflection surface and are reflected to the light splitting surface by the light output and reflection surface, and the light splitting surface is used for outputting the laser to the compensation prism, reflecting the object visible light to the light input and reflection surface for reflection and outputting the light to the eyepiece group by the light output and reflection surface;
the compensation prism comprises a second light splitting surface and a light output surface; the return laser is input from the second light splitting surface and is output to a laser receiver through the light output surface;
the light splitting surface of the compensating prism is connected with the light splitting surface of the isosceles prism in a gluing way;
and the light receiving surface of the roof half-pentaprism is parallel to the light output surface of the isosceles prism.
8. The miniaturized monocular laser rangefinder of claim 1, wherein the eyepiece group comprises an eyepiece plus lens and an eyepiece cemented lens;
the object visible light sequentially passes through the eyepiece positive lens and the eyepiece cemented lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220969384.8U CN217443642U (en) | 2022-04-25 | 2022-04-25 | Miniaturized monocular telescope laser range finder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220969384.8U CN217443642U (en) | 2022-04-25 | 2022-04-25 | Miniaturized monocular telescope laser range finder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217443642U true CN217443642U (en) | 2022-09-16 |
Family
ID=83217748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220969384.8U Active CN217443642U (en) | 2022-04-25 | 2022-04-25 | Miniaturized monocular telescope laser range finder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217443642U (en) |
-
2022
- 2022-04-25 CN CN202220969384.8U patent/CN217443642U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110058419B (en) | Erecting system and binocular laser ranging telescope | |
| CN106680917B (en) | Composite prism for multifunctional telescope and binocular telescope optical system thereof | |
| CN201637925U (en) | Laser ranging digital-display binocular telescope | |
| CN208092234U (en) | A kind of multifunction laser rangefinder | |
| US11016182B2 (en) | Through-the-lens, co-aligned optical aiming system for a phase-type, laser-based distance measuring device | |
| CN108594246B (en) | Multifunctional laser range finder | |
| CN114730025B (en) | Composite prism based on isosceles prism and laser ranging telescope thereof | |
| WO2023213130A1 (en) | Laser range finder in which optical transmission and receiving are coaxial, and optical module | |
| US7505120B2 (en) | Laser riflescope with enhanced display brightness | |
| CN109387847B (en) | Optical beam splitting system of laser ranging telescope | |
| US7349073B2 (en) | Efficient optical system and beam pathway design for laser-based distance measuring device | |
| CN217443642U (en) | Miniaturized monocular telescope laser range finder | |
| US20230341552A1 (en) | Miniaturized wide-range laser range finder | |
| JP4907564B2 (en) | Ranging binoculars | |
| CN114839757A (en) | Miniaturized monocular telescope laser range finder | |
| TWI400429B (en) | Optical system for monocular laser rangefinder | |
| JP2004045470A (en) | Binoculars with range finder | |
| CN1844949B (en) | Method for improving display brightness of laser distance measurer | |
| CN209674002U (en) | A kind of new pattern laser rangefinder | |
| US7599116B2 (en) | Display device for telescope system | |
| CN206876953U (en) | A kind of range-finding telescope of optional emission source | |
| GB2366107A (en) | Technique for increasing the optical signal/noise ratio of a laser range finder | |
| CN111190166A (en) | Laser range finder with double-color switching display | |
| CN210222353U (en) | Double-screen display structure optical system and three-tube range telescope using same | |
| CN218995714U (en) | Composite prism and laser ranging telescope thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |