CN106569331A - Laser leading beacon optical system - Google Patents

Laser leading beacon optical system Download PDF

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Publication number
CN106569331A
CN106569331A CN201611012365.1A CN201611012365A CN106569331A CN 106569331 A CN106569331 A CN 106569331A CN 201611012365 A CN201611012365 A CN 201611012365A CN 106569331 A CN106569331 A CN 106569331A
Authority
CN
China
Prior art keywords
laser
optical system
light
light beam
face
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.)
Pending
Application number
CN201611012365.1A
Other languages
Chinese (zh)
Inventor
陈心怡
田永明
焦晓光
张大庆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Radio Equipment Research Institute
Original Assignee
Shanghai Radio Equipment Research Institute
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shanghai Radio Equipment Research Institute filed Critical Shanghai Radio Equipment Research Institute
Priority to CN201611012365.1A priority Critical patent/CN106569331A/en
Publication of CN106569331A publication Critical patent/CN106569331A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00Lighting devices intended for fixed installation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00Refractors for light sources
    • F21V5/04Refractors for light sources of lens shape
    • F21V5/043Refractors for light sources of lens shape the lens having cylindrical faces, e.g. rod lenses, toric lenses
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0916Adapting the beam shape of a semiconductor light source such as a laser diode or an LED, e.g. for efficiently coupling into optical fibers
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0938Using specific optical elements
    • G02B27/095Refractive optical elements
    • G02B27/0955Lenses
    • G02B27/0966Cylindrical lenses
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21WINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2111/00Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2111/04Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for waterways
    • F21W2111/043Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00 for waterways for lighthouses or lightships

Abstract

A laser leading beacon optical system disclosed by the present invention comprises an adjusting pedestal, a light source laser arranged on the adjusting pedestal, a light beam adjusting and shaping unit, a diaphragm, a projection optical system and a protection window. The light source laser emits a laser beam to pass the light beam adjusting and shaping unit, the diaphragm and the projection optical system, and finally the laser beam is emitted out from the protection window. According to the present invention, the red and green two fan-shaped light beams of high visibility, high transmissivity and high directivity are generated for the laser leading beacon system, the two light beams are located in a same plane, and the boundaries of the two light beams have some overlap, so that the marine navigators can be navigated on the severe weather conditions, such as the rain, the fog, etc.

Description

A kind of laser leading beacon optical system
Technical field
The present invention relates to laser leading beacon, more particularly to a kind of laser leading beacon optical system.
Background technology
New beacon system with laser instrument as light source, optical system is the technological core of new beacon, is responsible for laser Beacon system produces high-quality laser beam, and high-quality laser beam has preferably visual, directivity and to air Good penetration capacity, its reliability height, long service life, energy expenditure are low, particularly in the day of the poor visibilities such as rain, mist Use under the conditions of gas, it will produce good navaid effect.Additionally, laser is monochromatic light, color saturation is 1, with bias light Contrast is obvious, it is easy to recognize.
Traditional navigation light is with LED light emitting diodes as principal light source.Patent CN102980124A (is based on wind light mutual complementing one The LED navigation lights of body powering mode) describe a kind of LED navigation lights of wind light mutual complementing powering mode.The navigation light is fully sharp With solar energy and wind energy, the two is combined into generating in complementary fashion, reliable and stable electric power is provided for LED navigation lights, the method Low-carbon environment-friendly, operate steadily.Patent CN101078494A (a kind of navigation mark lamp unit and its application) is described for LED light source Navigation light lens unit, the light that LED light source can be sent by the invention are collimated to given angle in one direction, vertical Direction on uniform light distribution is formed in given angle.Periodical in 2011《Shandong industrial technology》Describe a kind of point light Source LED, the intelligent navigation mark modulator, are controlled to light path by free form surface side light emission lens as light source using single LEDs, Realize low-power consumption, wide range, low-maintenance amount, long-life.Above-mentioned range light implementation method is adopted based on LED light emitting diodes The characteristic of light source, LED itself is wanted to determine which has very big deficiency in terms of navigational light beam quality:First, night dock operation, greatly Amount lighting installation comes into operation, and the beacon surrounding of navigation mark Department formation spreads all over background light, and Navigation light light intensity and background light Light intensity is more or less the same again, makes the human pilot of night entering and leaving port ship be difficult to recognize beacon light.Secondly, it is severe in rain, mist etc. Be even more under weather condition and be difficult to aid to navigation, very big hidden danger is brought to navigation safety.
The content of the invention
It is an object of the invention to provide a kind of laser leading beacon optical system, is that laser leading beacon system produces high visual, height The red green two beams fan beam of absorbance, high directivity, two light beams are in same plane, and border has certain overlapping.Can rain, Navigate for marine navigator under the severe weather conditions such as mist.
In order to realize object above, the present invention is achieved by the following technical solutions:
A kind of laser leading beacon optical system, is characterized in, comprising:
Adjusting base;
It is arranged on light source laser on adjusting base, light beam adjustment shaping unit, diaphragm, projection optical system and protection Window;
Described light source laser sends laser beam through light beam adjustment shaping unit, diaphragm, projection optical system, finally Projected by described protective window.
Described light source laser projects HONGGUANG, green laser light beam.
Described light beam adjustment shaping unit carries out shaping to HONGGUANG, green laser light beam respectively, and which includes:First lens Group and the second lens group;
The first described lens group includes two pieces of cylindrical mirrors, and red laser light beam is incident with square beam of light, through two pieces of posts Boil down to rectangular light spot after the mirror of face;
The second described lens group includes two panels coquille and two panels cylindrical mirror, and green laser light beam is entered with circular light beam Penetrate, respectively through boil down to ellipse light spot after two panels coquille and two panels cylindrical mirror.
Described diaphragm is used for the border for constraining the laser beam after shaping.
Described projection optical system includes a beam cementing prism, and the beam cementing prism is respectively equipped with first, second and third face, its Described in the second face it is perpendicular with the first face, the 3rd described face is parallel with the first face;Described red, green laser light beam First and second face respectively from beam cementing prism is incident, and while by the 3rd face outgoing.
Described protective window is made using K9 materials.
The present invention compared with prior art, with advantages below:
The present invention produces high visuality, high-transmission rate, the red green two beams fan beam of high directivity for laser leading beacon system, Two light beams are in same plane, and border has certain overlapping.Can lead for marine navigator under the severe weather conditions such as rain, mist Boat
Description of the drawings
Fig. 1 is the navigation strategy figure of laser leading beacon of the present invention;
Fig. 2 is a kind of system diagram of laser leading beacon optical system of the invention;
Fig. 3 is the light path design figure of laser leading beacon of the present invention;
Fig. 4 is index path of the present invention at beam cementing prism.
Specific embodiment
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the present invention is further elaborated.
The present invention provides a kind of design of Optical System scheme of laser leading beacon, and the laser leading beacon is led with red green two color light Boat.Optical system needs to provide red green two color as shown in Figure 1 parallel fan beam, and boundary has certain overlapping region, And need to ensure to cover whole navigation area.Meanwhile, optical system should ensure that laser beam be incident upon the high identification on navigation channel and The efficient utilization of energy, therefore, the uniformity and as little as possible energy in reforming process of emergent light spot intensity distributions need to be ensured Amount loss.
The optical system of laser leading beacon is as shown in Fig. 2 include adjusting base 1;The light source laser being arranged on adjusting base Device 2, light beam adjustment shaping unit 3, diaphragm 4, projection optical system 5 and protective window 6;Described light source laser 2 sends laser Beam is finally projected by described protective window 6 through light beam adjustment shaping unit 3, diaphragm 4, projection optical system 5.Which is main Light path design figure as shown in figure 3, red green two-beam respectively through shaping, diaphragm adjustment after, ECDC beam prism close beam, by projection system Completely one amplifies projection.
Light source laser is made up of the green (light) laser of the red laser and 532nm ± 10nm of wavelength 635nm ± 10nm, The transmission power of the laser instrument need to be determined according to factors such as scope of heading, navigational environment, human eye resolutions.To ensure subsequent power Efficient utilization, the laser instrument of selection must have preferable beam quality, to mitigate design, the adjustment pressure of subsequent optical orthopedic systems Power.The red laser selected in this example is the 5W laser instrument of the square light-emitting areas of 8mm*8mm, and green (light) laser is a diameter of 3mm The 5W laser instrument in circular luminous face.Above-mentioned laser instrument is in like product, and transmission power is higher, and transmitting beam quality is preferable Laser instrument.To realize that red green two color fan beam has certain overlapping in boundary, red green two color light is both needed to and light Lu Zhizheng pair Axle is claimed to have certain side-play amount, its side-play amount can pass through formula lSkew=ftan θBorderCalculate, herein focal lengths of the f for optical projection system, θBorderFor border angle, lSkewAs side-play amount.When placing, light-emitting area center offsets l relative to axis to laser instrument respectivelySkew Place.In this example, red green two-beam is incident from A, B two sides of beam cementing prism respectively, the luminous district center of red laser with point L is offset downward on the basis of the horizontal median axis of light prismSkew;The luminous district center of green (light) laser with beam cementing prism it is vertical in On the basis of axis, l is offset to the leftSkew
Light beam adjustment shaping unit 3 carries out shaping to HONGGUANG, green laser light beam respectively, and which includes:First lens group 31 With the second lens group 32;The first described lens group 31 includes two pieces of cylindrical mirrors, and red laser light beam is incident with square beam of light, Jing Cross boil down to rectangular light spot after two pieces of cylindrical mirrors;The second described lens group 32 includes two panels coquille and two panels cylindrical mirror, green Ray laser light beam is incident with circular light beam, (adopts Galilean telescope form respectively through two panels coquille and two panels cylindrical mirror Optical system) boil down to ellipse light spot afterwards.It should be noted that the diameter of the collimated round hot spot of green glow should be slightly larger than it is narrow Seam width, to ensure that the ellipse light spot Jing after cylindrical mirror compresses can be full of whole slit areas.Ellipse light spot inscribe after shaping In slit window, you can meet hot spot and be completely filled with slit areas, while ensureing the efficient utilization of energy.Additionally, shaping unit Optical system because employing Galilean type telescope configuration so as to light distribution is uniform, and moderate strength.
For constraining the border of the laser beam after shaping, the laser beam after shaping passes through diaphragm to described diaphragm 4, its Sharp keen diaphragm border ensure that the high sharpness of beam edge, and optical bounds are clear, are obtained in that higher navigation accuracy.This example In aperture stop size by formula li=ftan θiCalculate, wherein:Focal lengths of the f for optical projection system, θiHorizontal divergence angle for system or The pitching angle of divergence.By the size of accurate adjustment diaphragm window, it is ensured that accurately cover the navigation channel region of whole navigation.In this example Aperture stop size be not required to adjust in later stage adjustment, but have high required precision to aperture stop size, so adopting in this example Slit of the diaphragm for etching and processing.It is such slit small volume, high precision, lightweight, it is easy to assembling to fix.What is adopted in this example is narrow Seam precision is ± 0.005mm, thickness only 2mm, only needs to finely tune the front and back position and luffing angle of slit in assembling process.
As shown in Figure 3,4, projection optical system by by the light beam projecting after shaping, diaphragm on required navigation channel line. Described projection optical system 5 includes a beam cementing prism 51, and the beam cementing prism is respectively equipped with first, second and third face (A, B, C), The second wherein described face B is perpendicular with the first face A, and the 3rd described face C is parallel with the first face A;Described red, green glow swashs First and second face of the light light beam respectively from beam cementing prism is incident, and while by the 3rd face outgoing.The projection optics system designed in this example By codeV optical design software, design of Simulation is formed system.In view of whole system size, image quality and optical system eyeglass Quantity, in this example, the focal length of optical projection system is set as 400mm.Final design result is by four spherical lenss and one piece of cube of conjunction beam Prism is constituted, overall length 350mm, maximum aperture of lens about 50mm, can be while the green light band of a length of 532nm ± 10nm of centering cardiac wave And centre wavelength is amplified projection for the red spectral band of 635nm ± 10nm.It is worthy of note that, red green two-way laser beam The complexity that same set of optical projection system reduces system is shared, the size and weight of system is reduced.
Optics adjusts bearing to be used to fix the lens of shaping optical system and projection optical system, due to the position to lens Put, particularly optical projection system, need high-precision positional distance, luffing angle and ensure that each lens is concentric.Therefore, adjust and prop up The effect of the only unfixed lens of seat, also needs certain regulated quantity, lens can be finely adjusted.
Protective window ensures that laser can be with the transmission optical window of high-transmission rate.At the same time it can also protect lens and internals to keep away Exempt from and disturbed by the corrosion of the environmental factorss such as sea water, salt fog.The optical window of K9 materials is adopted in this example, and transmitance is plated up to 99% Anti-reflection film, it is ensured that the efficient utilization of energy.
In sum, a kind of laser leading beacon optical system of the invention, is that the generation of laser leading beacon system is high visual, highly transmissive The red green two beams fan beam of rate, high directivity, two light beams are in same plane, and border has certain overlapping.Can be in rain, mist etc. Navigate for marine navigator under severe weather conditions.
Although present disclosure has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention's Various modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.

Claims (6)

1. a kind of laser leading beacon optical system, it is characterised in that include:
Adjusting base;
It is arranged on light source laser on adjusting base, light beam adjustment shaping unit, diaphragm, projection optical system and protective window;
Described light source laser sends laser beam through light beam adjustment shaping unit, diaphragm, projection optical system, finally by institute The protective window stated is projected.
2. laser leading beacon optical system as claimed in claim 1, it is characterised in that described light source laser project HONGGUANG, Green laser light beam.
3. laser leading beacon optical system as claimed in claim 2, it is characterised in that described light beam adjustment shaping unit difference Shaping is carried out to HONGGUANG, green laser light beam, which includes:First lens group and the second lens group;
The first described lens group includes two pieces of cylindrical mirrors, and red laser light beam is incident with square beam of light, through two pieces of cylindrical mirrors Boil down to rectangular light spot afterwards;
The second described lens group includes two panels coquille and two panels cylindrical mirror, and green laser light beam is incident with circular light beam, point The boil down to ellipse light spot not after two panels coquille and two panels cylindrical mirror.
4. laser leading beacon optical system as claimed in claim 3, it is characterised in that after described diaphragm is used for constraining shaping The border of laser beam.
5. the laser leading beacon optical system as described in any one of claim 1-3, it is characterised in that described projection optical system Comprising a beam cementing prism, the beam cementing prism is respectively equipped with first, second and third face, wherein the second described face is mutually hung down with the first face Directly, the 3rd described face is parallel with the first face;Described red, green laser light beam is respectively from first and second face of beam cementing prism Incidence, and while by the 3rd face outgoing.
6. laser leading beacon optical system as claimed in claim 1, it is characterised in that described protective window adopts K9 material systems Into.
CN201611012365.1A 2016-11-17 2016-11-17 Laser leading beacon optical system Pending CN106569331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611012365.1A CN106569331A (en) 2016-11-17 2016-11-17 Laser leading beacon optical system

Publications (1)

Publication Number Publication Date
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108106544A (en) * 2017-12-27 2018-06-01 河南中原光电测控技术有限公司 Measuring system and measurement structure
CN112834177A (en) * 2021-01-08 2021-05-25 集美大学 Movable optical measurement device

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Publication number Priority date Publication date Assignee Title
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WO2010140185A1 (en) * 2009-06-01 2010-12-09 三菱電機株式会社 Optical transmitting and receiving module and method for manufacturing optical transmitting and receiving module
US20110261456A1 (en) * 2008-10-20 2011-10-27 Volker Raab Polarization coupler
CN103186020A (en) * 2011-12-29 2013-07-03 深圳市光峰光电技术有限公司 Laser module and lighting source
CN103487887A (en) * 2013-10-10 2014-01-01 核工业理化工程研究院 Device for integrating and transmitting different-wavelength multi-path lasers and use method thereof
CN103887710A (en) * 2014-03-04 2014-06-25 维林光电(苏州)有限公司 Laser multi-beam combining device and method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101299509A (en) * 2008-06-25 2008-11-05 福州高意通讯有限公司 Multi-wavelength laser
CN201237669Y (en) * 2008-09-19 2009-05-13 清溢精密光电(深圳)有限公司 Light spot indication system
US20110261456A1 (en) * 2008-10-20 2011-10-27 Volker Raab Polarization coupler
WO2010140185A1 (en) * 2009-06-01 2010-12-09 三菱電機株式会社 Optical transmitting and receiving module and method for manufacturing optical transmitting and receiving module
CN103186020A (en) * 2011-12-29 2013-07-03 深圳市光峰光电技术有限公司 Laser module and lighting source
CN103487887A (en) * 2013-10-10 2014-01-01 核工业理化工程研究院 Device for integrating and transmitting different-wavelength multi-path lasers and use method thereof
CN103887710A (en) * 2014-03-04 2014-06-25 维林光电(苏州)有限公司 Laser multi-beam combining device and method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108106544A (en) * 2017-12-27 2018-06-01 河南中原光电测控技术有限公司 Measuring system and measurement structure
CN108106544B (en) * 2017-12-27 2020-08-04 河南中原光电测控技术有限公司 Measurement system and measurement structure
CN112834177A (en) * 2021-01-08 2021-05-25 集美大学 Movable optical measurement device
CN112834177B (en) * 2021-01-08 2022-12-06 集美大学 Movable optical measurement device of beacon light device

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