CN204575847U - laser ranging optical system - Google Patents
laser ranging optical system Download PDFInfo
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- CN204575847U CN204575847U CN201520339609.1U CN201520339609U CN204575847U CN 204575847 U CN204575847 U CN 204575847U CN 201520339609 U CN201520339609 U CN 201520339609U CN 204575847 U CN204575847 U CN 204575847U
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Abstract
The utility model relates to a kind of laser ranging optical system, for measuring the distance of object, comprise Laser emission subsystem and laser pick-off subsystem, Laser emission subsystem comprises laser instrument, laser alignment object lens, laser pick-off subsystem comprises laser pick-off device, laser pick-off object lens, laser pick-off object lens by the non-spherical lens for converging object reflection ray and closely offset lens form, closely offset lens is adjacent on the sidewall of the wide thing side of non-spherical lens, and closely offset lens between the optical axis and the optical axis of laser pick-off subsystem of Laser emission subsystem.The optical system of the design, strengthens the ability of the close-in measurement of system by setting up closely offset lens in laser pick-off object lens and improves precision and the efficiency of close-in measurement; And manufacture craft is simple, cost is low, more can be widely used.
Description
Technical field
the utility model relates to a kind of laser ranging optical system.
Background technology
laser ranging is widely used in a lot of field.Laser ranging optical system generally comprises laser instrument, laser alignment object lens, laser pick-off device and laser pick-off object lens, the range observation of system to object far away of conventional art has good precision and very high efficiency, but for the situation of nearer or super near object, the inclined light shaft angle of the reflected light relative laser receiving subsystem of object is larger, after the convergence effect of receiving objective, be also difficult to the receiving area entering laser pick-off device, cause to implement to measure to close-in target.
Summary of the invention
for the technical deficiency of above-mentioned existence, the purpose of this utility model is to provide a kind of laser ranging optical system, and it strengthens the ability of the close-in measurement of system by setting up closely offset lens in receiving objective and improve precision and the efficiency of close-in measurement.
for solving the problems of the technologies described above, the utility model adopts following technical scheme:
a kind of laser ranging optical system, for measuring the distance of object, this system comprises Laser emission subsystem and laser pick-off subsystem, described Laser emission subsystem comprises laser instrument, be arranged on the laser alignment object lens between described laser instrument and object, described laser pick-off subsystem comprises laser pick-off device, be arranged on the laser pick-off object lens between described laser pick-off device and object, described laser pick-off object lens by the non-spherical lens for converging object reflection ray and closely offset lens form, described closely offset lens is adjacent on the sidewall of the wide thing side of described non-spherical lens, and described closely offset lens is between the optical axis and the optical axis of described laser pick-off subsystem of described Laser emission subsystem.
preferably, described closely offset lens is made up of the toroidal lens and wedge-shaped lens being adjacent to setting, and the exit facet of described toroidal lens is concave surface, and described toroidal lens is between the optical axis and described wedge-shaped lens of described laser pick-off subsystem.
preferably, described toroidal lens and described wedge-shaped lens one-body molded.
the beneficial effects of the utility model are: the optical system of the design, set up closely offset lens and strengthen the ability of the close-in measurement of system by setting up closely offset lens in laser pick-off object lens and improve the precision of close-in measurement and efficiency; And manufacture craft is simple, cost is low, more can be widely used.
Accompanying drawing explanation
accompanying drawing 1 is the range finding schematic diagram of laser ranging optical system of the present utility model;
accompanying drawing 2 is the structural representation of the closely offset lens in laser ranging optical system of the present utility model;
in accompanying drawing: 10, object; 20, Laser emission subsystem; 201, laser instrument; 202, laser alignment object lens; 30, laser pick-off subsystem; 301, laser pick-off device; 302, laser pick-off object lens; 3021, non-spherical lens; 3022, closely offset lens; 30221, toroidal lens; 30222, wedge-shaped lens.
Embodiment
below in conjunction with embodiment shown in the drawings, the utility model is described in detail below:
as shown in accompanying drawing 1 and accompanying drawing 2, a kind of laser ranging optical system, comprise Laser emission subsystem 20 and laser pick-off subsystem 30, described Laser emission subsystem 20 comprises laser instrument 201, be arranged on the laser alignment object lens 202 between described laser instrument 201 and object 10, described laser pick-off subsystem 30 comprises laser pick-off device 301, be arranged on the laser pick-off object lens 302 between described laser pick-off device 301 and object 10, described laser pick-off object lens 302 by the non-spherical lens 3021 for converging object 10 reflection ray and closely offset lens 3022 form, described closely offset lens 3022 is adjacent on the sidewall of wide thing 10 side of described non-spherical lens 3021, and described closely offset lens 3022 is between the optical axis and the optical axis of described laser pick-off subsystem 30 of described Laser emission subsystem 20, described closely offset lens 3022 is made up of the toroidal lens 30221 and wedge-shaped lens 30222 being adjacent to setting, the exit facet of described toroidal lens 30221 is concave surface, and described toroidal lens 30221 is between the optical axis and described wedge-shaped lens 30222 of described laser pick-off subsystem 30, in other embodiments, above-mentioned toroidal lens 30221 can be integrated with described wedge-shaped lens 30222, and closely offset lens 3022 and non-spherical lens 3021 also can be integrated.
when measuring object 10 far away, the light beam that laser instrument 201 is launched reaches on object 10 after laser alignment object lens 201, reflected, most reflected light converges to laser pick-off device 301 after non-spherical lens 3021 reflects, and is converted into the range information that electric signal aftertreatment obtains object 10; And when measuring nearer or super near object 10, the light beam that laser instrument 201 is launched reaches on object 10 after laser alignment object lens 201, reflected, the angle of the optical axis of reflected light and laser pick-off subsystem 30 is larger, now, it enters the receiving area of laser pick-off device 301 again through closely offset lens 3022 after turning back, be converted into the range information that electric signal aftertreatment obtains object 10 equally.
the optical system of the design, sets up closely offset lens 3022 and strengthens the ability of the close-in measurement of system by setting up closely offset lens 3022 in laser pick-off object lens 302 and improve the precision of close-in measurement and efficiency; Ensure precision and the efficiency of measuring distant object thing 10 simultaneously; Namely can meet the measurement to distant object thing 10 and close-in target thing 10 simultaneously; Each lens production process of this design is simple, cost is low, and cost performance is high, more can be widely used.
above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model spirit change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (3)
1. a laser ranging optical system, for measuring the distance of object, it is characterized in that: comprise Laser emission subsystem and laser pick-off subsystem, described Laser emission subsystem comprises laser instrument, be arranged on the laser alignment object lens between described laser instrument and object, described laser pick-off subsystem comprises laser pick-off device, be arranged on the laser pick-off object lens between described laser pick-off device and object, described laser pick-off object lens by the non-spherical lens for converging object reflection ray and closely offset lens form, described closely offset lens is adjacent on the sidewall of the wide thing side of described non-spherical lens, and described closely offset lens is between the optical axis and the optical axis of described laser pick-off subsystem of described Laser emission subsystem.
2. laser ranging optical system according to claim 1, it is characterized in that: described closely offset lens is made up of the toroidal lens and wedge-shaped lens being adjacent to setting, the exit facet of described toroidal lens is concave surface, and described toroidal lens is between the optical axis and described wedge-shaped lens of described laser pick-off subsystem.
3. laser ranging optical system according to claim 2, is characterized in that: described toroidal lens and described wedge-shaped lens one-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520339609.1U CN204575847U (en) | 2015-05-22 | 2015-05-22 | laser ranging optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520339609.1U CN204575847U (en) | 2015-05-22 | 2015-05-22 | laser ranging optical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204575847U true CN204575847U (en) | 2015-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520339609.1U Active CN204575847U (en) | 2015-05-22 | 2015-05-22 | laser ranging optical system |
Country Status (1)
| Country | Link |
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| CN (1) | CN204575847U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833966A (en) * | 2015-05-22 | 2015-08-12 | 南京爱立光电有限公司 | Laser-ranging optical system |
| CN105549024A (en) * | 2015-12-02 | 2016-05-04 | 苏州迅威光电科技有限公司 | Mechanism, method and system of center height automatic measurement of total station electronic tacheometer |
-
2015
- 2015-05-22 CN CN201520339609.1U patent/CN204575847U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833966A (en) * | 2015-05-22 | 2015-08-12 | 南京爱立光电有限公司 | Laser-ranging optical system |
| CN105549024A (en) * | 2015-12-02 | 2016-05-04 | 苏州迅威光电科技有限公司 | Mechanism, method and system of center height automatic measurement of total station electronic tacheometer |
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| GR01 | Patent grant |