CN202614217U - Semiconductor laser ranging finder optical system - Google Patents
Semiconductor laser ranging finder optical system Download PDFInfo
- Publication number
- CN202614217U CN202614217U CN 201120465752 CN201120465752U CN202614217U CN 202614217 U CN202614217 U CN 202614217U CN 201120465752 CN201120465752 CN 201120465752 CN 201120465752 U CN201120465752 U CN 201120465752U CN 202614217 U CN202614217 U CN 202614217U
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- objective lens
- cemented
- semiconductor laser
- objective
- optical system
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Abstract
The utility model discloses a semiconductor laser ranging finder optical system which comprises a single-tube telescope, a transmitting objective lens and a receiving objective lens. The transmitting objective lens consists of a first double-cemented objective lens. The surface of the first double-cemented objective lens is provided with a film system and visible light in the film system is all cut off. A broadband film system is plated on the surface of the first double-cemented objective lens with the central wavelength of 800-1200 nanometers. The receiving objective lens consists of a second double-cemented objective lens. Optical axes of the single-tube telescope, the transmitting objective lens and the receiving objective lens are parallel with each other. Compared with the prior art, the semiconductor laser ranging finder optical system is compact in structure, good in three-axis parallelism, suitable for visual observations after the magnification is enlarged, and good in matching of film optics and receiving components.
Description
Technical field
The utility model belongs to the laser ranging technique field, is specifically related to a kind of semiconductor laser range finder optical system.
Background technology
Semiconductor laser range finder has advantages such as little, in light weight, the low in energy consumption and direct modulation of volume, is widely used in that land survey, civil construction field are measured, range observation, fire-fighting, railway, movement overseas and the outdoor exercises etc. of golf court.It has characteristics such as precision height, volume is little, cost is low, speed is fast.Because the asymmetric activate channel of semiconductor laser; Make emitted light beams in orthogonal two planes, have the bigger angle of divergence; The far field be parallel and perpendicular to the angle of divergence of junction plane direction about respectively about 10 ° with about 30 °; So when using semiconductor laser, must at first collimate to its light beam.And the collimation result of many methods only reaches the angle of divergence about 3mrad, and it can't satisfy the actual needs that require the minimum angle of divergence.
The utility model content
Be to solve the above-mentioned defective that prior art exists, the purpose of the utility model is to provide a kind of compact conformation, and three-axle parallel is good, the enlargement ratio visualization that suit, Film Optics and accept the semiconductor laser range finder optical system that device matches.
For realizing above-mentioned purpose; The technical scheme that the utility model adopts is: this semiconductor laser range finder optical system has monocular, transmitting objective lens and receiving objective; It is characterized in that: said transmitting objective lens is made up of first pair of cemented objective; First pair of cemented objective surface has all section film that falls systems of visible light, the film system in centre wavelength 800nm-1200nm plating broadband; Said receiving objective is made up of second pair of cemented objective; The optical axis of said monocular, transmitting objective lens and receiving objective is parallel to each other.
Said monocular is made up of two cemented objectives, benhain prism and eyepiece group.
Adopt the beneficial effect of technique scheme: this semiconductor laser range finder optical system is made up of monocular, transmitting objective lens and receiving objective; Transmitting objective lens and laser tube and laser drive circuit are formed the laser tube emission coefficient; Laser tube adopts PGEW2S09 type laser tube, and its centre wavelength is 905nm, and said transmitting objective lens is made up of first pair of cemented objective; First pair of cemented objective surface has all section film that falls systems of visible light; The film system in centre wavelength 800nm-1200nm plating broadband, it is the core component of emission coefficient, maximum output can reach 30W.The second pair of cemented objective and snowslide pipe, amplifying circuit, comparator circuit and receiver are formed receiving system; The snowslide pipe adopts low noise C30724E CD2828 type snowslide pipe; Have higher responsiveness at the 800-950nm wave band, the response time is 5ns, and it is the core component of receiving system.According to the characteristics of semiconductor laser beam, the light beam that laser instrument sends has the bigger angle of divergence at orthogonal both direction, so the optical axis of said monocular, transmitting objective lens and receiving objective is parallel to each other, has ensured the collimation of light beam.This semiconductor laser range finder optical system structure form compact; The enlargement ratio of optimum visualization; The three-axle parallel of optical system collimates emitted light beams angle of divergence in orthogonal two planes, and the collimation result only reaches the angle of divergence about 1mrad; Satisfy the technical feature requirement fully, make this product handy, practical, durable.
Principle of work
The driving pulse that single-chip microcomputer sends is given laser drive circuit, and the driving laser pipe sends light pulse, produces an electric impulse signal simultaneously, gives the data terminal treatment circuit as start signal, and the light pulse that laser tube sends is outwards launched through diversing lens.Receiving objective will be focused on by the light signal that target reflection returns; Give the snowslide pipe and convert photo-signal to,, convert photo-signal to voltage pulse signal through the preposition amplification of amplifier circuit; Through comparator circuit detection, shaping; Convert numeral to and patrol level signal and give the data terminal treatment circuit as termination signal, result is used for the driving liquid crystal device, accomplishes range finding work.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the utility model is done further detailed explanation.
Fig. 1 is the structural representation of the utility model semiconductor laser range finder optical system.
Embodiment
Semiconductor laser range finder optical system as shown in Figure 1 has monocular, transmitting objective lens and receiving objective, and said monocular is formed exit pupil position 4 object observings by two cemented objective 1, benhain prism 2 and eyepiece group 3.Said transmitting objective lens is made up of first pair of cemented objective 5, and first pair of cemented objective surface has all section film that falls systems of visible light, the film system in centre wavelength 800nm-1200nm plating broadband, and transmitting illuminant 6 and first pair of cemented objective 5 are positioned on the same optical axis; Said receiving objective is made up of second pair of cemented objective 7, and snowslide pipe 8 receives by receiving objective and focuses on the light signal that is returned by target reflection, converts photo-signal to through the snowslide pipe; Through the preposition amplification of amplifier circuit; Convert photo-signal to voltage pulse signal, through comparator circuit detect, shaping, convert numeral to and patrol level signal and give the data terminal treatment circuit as termination signal; Result is used for the driving liquid crystal device, accomplishes range finding work.According to the characteristics of semiconductor laser beam, the light beam that laser instrument sends has the bigger angle of divergence at orthogonal both direction, so the optical axis of said monocular, transmitting objective lens and receiving objective is parallel to each other, has ensured the collimation of light beam.This semiconductor laser range finder optical system structure form compact; The enlargement ratio of optimum visualization; The three-axle parallel of optical system collimates emitted light beams angle of divergence in orthogonal two planes, and the collimation result only reaches the angle of divergence about 1mrad; Satisfy the technical feature requirement fully, make this product handy, practical, durable.
Adopt the product technology performance of said structure preparation
A) observing system magnification: 7
*
B) observing system visual field: 5.46o;
C) exit pupil diameter: Ф 3.1;
D) working temperature :-20 ℃～+ 50 ℃
E) storage temperature :-35 ℃～+ 60 ℃;
F) weight :≤650g
G) physical dimension: 133mmx132mmx61mm
H) finding range:
Minimum ranging :≤20 m
Maximum ranging: >=1000 m
I) distance accuracy: ± 1m
J) mode switch: have 4 kinds of target patterns (general modfel, high reflectance pattern, rainy day pattern, window scheme) and a kind of scan pattern convertible
K) complete machine shuts down automatically: after the energized, do not have operation outage automatically in 25 seconds
L) complete machine maximum power dissipation :≤400mW.
Claims (2)
1. semiconductor laser range finder optical system; Have monocular, transmitting objective lens and receiving objective; It is characterized in that: said transmitting objective lens is made up of first pair of cemented objective; First pair of cemented objective surface has all section film that falls systems of visible light, the film system in centre wavelength 800nm-1200nm plating broadband; Said receiving objective is made up of second pair of cemented objective; The optical axis of said monocular, transmitting objective lens and receiving objective is parallel to each other.
2. semiconductor laser range finder optical system according to claim 1 is characterized in that: said monocular is made up of two cemented objectives, benhain prism and eyepiece group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120465752 CN202614217U (en) | 2011-11-22 | 2011-11-22 | Semiconductor laser ranging finder optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120465752 CN202614217U (en) | 2011-11-22 | 2011-11-22 | Semiconductor laser ranging finder optical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202614217U true CN202614217U (en) | 2012-12-19 |
Family
ID=47347907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120465752 Expired - Fee Related CN202614217U (en) | 2011-11-22 | 2011-11-22 | Semiconductor laser ranging finder optical system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202614217U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249247A (en) * | 2016-08-30 | 2016-12-21 | 南阳英锐光电科技股份有限公司 | A kind of semiconductor laser range optical system and diastimeter |
-
2011
- 2011-11-22 CN CN 201120465752 patent/CN202614217U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249247A (en) * | 2016-08-30 | 2016-12-21 | 南阳英锐光电科技股份有限公司 | A kind of semiconductor laser range optical system and diastimeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20201122 |