CN109217087A - A kind of laser light path system - Google Patents
A kind of laser light path system Download PDFInfo
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- CN109217087A CN109217087A CN201811154394.0A CN201811154394A CN109217087A CN 109217087 A CN109217087 A CN 109217087A CN 201811154394 A CN201811154394 A CN 201811154394A CN 109217087 A CN109217087 A CN 109217087A
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- prism
- eyeglass
- laser light
- light path
- laser
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- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 abstract description 33
- 238000000034 method Methods 0.000 description 5
- 238000004026 adhesive bonding Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000002310 reflectometry Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003447 ipsilateral effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/08059—Constructional details of the reflector, e.g. shape
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The invention proposes a kind of laser light path systems, including shell, the first prism, the second prism and eyeglass；Using two first prisms with autoregistration characteristic, the second prisms as reflecting mirror, upper layer and lower layer optical path transmits light beam by the second prism of one piece of crest line parallel light path, light beam steering is realized by the first prism of large scale of one piece of crest line vertical optical path at the U-shaped folding of upper layer and lower layer optical path, two orthogonal the first prisms and the second prism are capable of providing preferable stability, first prism and the second prism are all made of Dove prism, not will cause optical path imbalance around crest line rotation.
Description
Technical field
The present invention relates to a kind of laser light path systems.
Background technique
In laser technology field, some special applications propose higher and higher technology to the volume of laser and want
It asks, it is desirable that the volume of laser minimizes, and therefore, the technology for reducing the volume of laser is come into being.
Type laser light-path structure is the important component of laser.Existing laser light path system is generally using folding optical path
It realizes, this folding optical path uses 2 reflecting mirrors generally to realize a light path folding, realizes multiple optical path folding if necessary
It folds to reduce laser volume, then needs to carry out multiple light path folding using multi-disc reflecting mirror.
But due to needing just to be able to achieve multiple light path folding using multi-disc reflecting mirror, the quantity of reflecting mirror is increased, is mentioned
The high complexity of optical path adjusting, increases the probability of laser light path system imbalance, in addition, due to the increase of optical component,
It is unfavorable for reducing the volume of laser.
Summary of the invention
The present invention proposes a kind of laser light path system regarding to the issue above.
Specific technical solution is as follows:
A kind of laser light path system, including shell, the first prism, the second prism and eyeglass；
Light entrance is provided on the shell side, first prism, the second prism and eyeglass are all set in the shell
Internal portion, first prism are located at the enclosure interior side, and second prism and eyeglass are located at the enclosure interior
The other side, the eyeglass top are located at the smooth entrance side；
Eyeglass side bottom surface is provided with total reflection film, and side top surface is provided with semi-transparent semi-reflecting film, the laser light velocity
Emit by semi-transparent semi-reflecting film, bottom is totally reflected to by the first, second prism, then be reflected back first, second by reflectance coating
Prism, final laser pass through top semi-transparent semi-reflecting film output；
First prism and the second prism are used to laser total reflection angular adjustment, and the first, second prism is arranged in parallel,
Laser enters the first prism bottom and realizes that horizontal direction angle adjusts total reflection, subsequently into the second prism, from the second prism bottom
Portion enters, and realizes the total reflection of vertical direction angular adjustment by the second prism, projects from the second prism top, enter back into the first rib
Vertex portion realizes that horizontal direction angle adjusts total reflection, finally exports laser at the top of eyeglass.
Further, first prism is Dove prism.
Further, second prism is Dove prism.
Further, first prism is right-angle prism.
Further, second prism is right-angle prism.
Further, second prism is corner prism.
Further, first prism is set in parallel with the second prism, eyeglass.
The invention has the benefit that
Using two first prisms with autoregistration characteristic, the second prism as reflecting mirror, upper layer and lower layer optical path passes through one piece
Second prism of crest line parallel light path transmits light beam, by the big ruler of one piece of crest line vertical optical path at the U-shaped folding of upper layer and lower layer optical path
Very little first prism realizes light beam steering, and two orthogonal the first prisms and the second prism are capable of providing preferable stability, the first rib
Mirror and the second prism are all made of Dove prism, not will cause optical path imbalance around crest line rotation.
Eyeglass is integrated using output with total reflective mirror, is all-trans and output function by plated film realization, the U-shaped resonant cavity of bilayer
Hysteroscope only has 3 optical elements to constitute, and reduces the complexity of system while improving resonant cavity preventing mismatching ability, folds the anti-of optical path
Ejaculation degree is guaranteed by prism machining accuracy, therefore reflection angle will not change in use, and the imbalance of optical path is by component
Between relative angle variation cause, the present invention realizes 6 deviations of optical path using 3 optical elements, since prism is along rib
The imbalance of line direction rotation is insensitive, and two prisms are orthogonally located therefore provide anti-mistake in horizontal and pitching both direction rotation
Humorous ability makes laser keep insensitive to mechanical deformation caused by shock and vibration and temperature fluctuation.
Detailed description of the invention
Fig. 1 is that laser optical path transmits schematic diagram.
Fig. 2 is inside top figure of the present invention.
Fig. 3 is sectional view along A-A of the present invention.
Fig. 4 is B-B direction cross-sectional view of the present invention.
Fig. 5 is eyeglass schematic diagram of the present invention.
Specific embodiment
Clear to be more clear technical solution of the present invention, the present invention is described further with reference to the accompanying drawing,
The technical characteristic of any pair of technical solution of the present invention carries out the scheme that equivalencing is obtained with conventional reasoning and each falls within guarantor of the present invention
Protect range, the present invention in it is unmentioned be fixedly connected, fixed setting be welding, bolt and nut connection, screw connection etc. abilities
The well-known technique means that field technique personnel are known.
It is to be illustrated for Dove prism that the first prism and the second prism, which use, in the present embodiment, in practice, can also
To use right-angle prism, the application is simultaneously not limited thereof.Second prism can also be replaced with corner prism, connect upper layer and lower layer
Optical path.
For a kind of technique of optical manufacturing, commission Beijing Chuan Si Trade Co., Ltd. carries out the plated film used in the present embodiment
Plated film, filming parameter: the reflectivity > 99.9% of total reflective mirror film；The reflectivity of semi-transparent semi-reflecting film is 10% ~ 90%, and best value takes
The certainly filming parameter in the gain coefficient of gain media, the present embodiment: the reflectivity of total reflective mirror film: 99.99%；Semi-transparent semi-reflecting film
Reflectivity be 50%.
Appended drawing reference
Shell 1, light entrance 11, the first prism 2, the second prism 3, eyeglass 4, total reflection film 41, semi-transflective reflective film 42, first
Mounting bracket 5, support plate 51, mounting base 52, trapezoidal groove 53, the second mounting bracket 6, support column 61, U-shaped board 62, third peace
Fill bracket 7, the 4th mounting bracket 8, mounting plate 9.
A kind of laser light path system, including shell, the first prism, the second prism and eyeglass；
Light entrance is provided on the shell side, first prism, the second prism and eyeglass are all set in the shell
Internal portion, first prism are located at the enclosure interior side, and second prism and eyeglass are located at the enclosure interior
The other side, the eyeglass top are located at the smooth entrance side；
Eyeglass side bottom surface is provided with total reflection film, and side top surface is provided with semi-transparent semi-reflecting film, the laser light velocity
Emit by semi-transparent semi-reflecting film, bottom is totally reflected to by the first, second prism, then be reflected back first, second by reflectance coating
Prism, final laser pass through top semi-transparent semi-reflecting film output；
First prism and the second prism are used to laser total reflection angular adjustment, and the first, second prism is arranged in parallel,
Laser enters the first prism bottom and realizes that horizontal direction angle adjusts total reflection, subsequently into the second prism, from the second prism bottom
Portion enters, and realizes the total reflection of vertical direction angular adjustment by the second prism, projects from the second prism top, enter back into the first rib
Vertex portion realizes that horizontal direction angle adjusts total reflection, finally exports laser at the top of eyeglass.
Further, first prism is Dove prism.
Further, second prism is Dove prism.
Further, first prism is set in parallel with the second prism, eyeglass.
The enclosure interior is provided with the first mounting bracket, the second mounting bracket, third mounting bracket, the 4th mounting bracket
And mounting plate installs first prism, the second prism and eyeglass；
For first mounting bracket with the second mounting bracket for installing to the first prism, first mounting bracket is one
Body formula structure is located at first prism side, and the first mounting bracket includes support plate and mounting base, the support plate quantity
It is two, one end is fixedly connected with the enclosure interior side wall, and the other end is fixedly connected with the mounting base, and the mounting base is in
Square structure, the mounting base are internally provided with trapezoidal groove, the trapezoidal groove shape, size with first prism one
Side is corresponding, and first prism side is fixed on inside trapezoidal groove by way of gluing；
The second support quantity is two, the second support, including two support columns and U-shaped board, first prism
Top and bottom is fixed in the U-shaped board by way of gluing, and support column one end connects U-shaped board, other end connection
Enclosure interior top plate or bottom plate；
The mounting plate is square plate body structure, between the second prism and eyeglass；The mounting plate is vertically arranged, one end with
Enclosure interior side side plate is fixedly connected；
The third mounting bracket quantity is six, is evenly distributed on the eyeglass two sides, and the third mounting bracket is in Y type knot
Structure, wherein one end is fixedly connected with housing sidewall or mounting plate, and the other end is fixed by way of gluing with eyeglass, is realized
The fixed installation of eyeglass；
The 4th mounting bracket quantity is four, is evenly distributed on second prism two sides, and the 4th mounting bracket is in Y
Type structure, wherein one end is fixedly connected with housing sidewall or mounting plate, and the other end is engaged by way of gluing with the second prism
It is fixed, realize the fixed installation of the second prism.
Different mounting brackets is set for the shape of different eyeglass and Dove prism, enables to eyeglass and rib
Deviation does not move mirror inside housings, guarantees the reliability of instrument, for the first biggish situation of prism volume, uses first
Installation is fixed from upper and lower and side in bracket and second support, improves stability.Especially setting mounting plate, guarantees eyeglass
And second prism effective installation, service performance is good.
Workflow of the present invention:
The intersection that two right-angle surfaces of Dove prism are formed is the crest line of Dove prism, and the maximum plane of area is that light is incident
Face, eyeglass are a piece of rectangle eyeglass, and eyeglass distinguishes plating total reflection film (H point region) and half from center equal part, equal part two sides
Saturating half anti-film (A point region).
The crest line of second prism and the crest line of the first prism are orthogonal, and the plane of incidence of the second prism enters with the first prism
It is parallel to penetrate face.The plane of incidence of first prism and the plane of incidence of eyeglass are parallel.Second prism and eyeglass are located at the incidence of the first prism
Face it is ipsilateral, the plane of the centre normal of the plane of incidence of the crest line of the first prism and the first prism composition is known as reference planes, the
The midpoint of the plane of incidence of two prisms being equidistant to the midpoint of the distance of reference planes and the plane of incidence of eyeglass to reference planes.
The starting point of laser is generated by gain media, and gain media can be placed on any position in intracavitary optical path, is swashed
Light is amplified by gain media each time, and process is semi-transparent semi-reflecting, the light output of transmission, and the light of reflection vibrates amplification again, week
And renew to form stable laser output, the light not in optical path cannot be amplified by gain media cannot also form laser.
Optical delivery situation is introduced in face, due to eyeglass half plating total reflection film half plate semi-transparent semi-reflecting film, light according to
The sequence of ABCDEFGHGFEDCBA closed loop in resonant cavity vibrates propagation repeatedly, and wherein A to B is projected from the Dove prism plane of incidence,
Oscillation couples output at A every time, and output rating is determined by the transmitance of A point region semi-transparent semi-reflecting film.
The invention has the benefit that
Have autoregistration characteristic Dove prism as reflecting mirror using two, upper layer and lower layer optical path passes through one piece of crest line parallel light path
The second prism transmit light beam, it is real by the first prism of large scale of one piece of crest line vertical optical path at the U-shaped folding of upper layer and lower layer optical path
Existing light beam steering, two orthogonal the first prisms and the second prism are capable of providing preferable stability, the first prism and the second prism
It is all made of Dove prism, not will cause optical path imbalance around crest line rotation,
Eyeglass is integrated using output with total reflective mirror, is all-trans and output function by plated film realization, the hysteroscope of the U-shaped resonant cavity of bilayer
Only 3 optical elements are constituted, and are reduced the complexity of system while being improved resonant cavity preventing mismatching ability, and the reflection essence of optical path is folded
Degree is guaranteed by prism machining accuracy, therefore reflection angle will not change in use, and the imbalance of optical path is by between component
Relative angle variation cause, the present invention realizes 6 deviations of optical path using 3 optical elements, since prism is along crest line side
Imbalance to rotation is insensitive, and two prisms are orthogonally located therefore provide preventing mismatching energy in horizontal and pitching both direction rotation
Power makes laser keep insensitive to mechanical deformation caused by shock and vibration and temperature fluctuation.
Claims (7)
1. a kind of laser light path system, which is characterized in that including shell, the first prism, the second prism and eyeglass；
Light entrance is provided on the shell side, first prism, the second prism and eyeglass are all set in the shell
Internal portion, first prism are located at the enclosure interior side, and second prism and eyeglass are located at the enclosure interior
The other side, the eyeglass top are located at the smooth entrance side；
Eyeglass side bottom surface is provided with total reflection film, and side top surface is provided with semi-transparent semi-reflecting film, the laser light velocity
Emit by semi-transparent semi-reflecting film, bottom is totally reflected to by the first, second prism, then be reflected back first, second by reflectance coating
Prism, final laser pass through top semi-transparent semi-reflecting film output；
First prism and the second prism are used to laser total reflection angular adjustment, and the first, second prism is arranged in parallel,
Laser enters the first prism bottom and realizes that horizontal direction angle adjusts total reflection, subsequently into the second prism, from the second prism bottom
Portion enters, and realizes the total reflection of vertical direction angular adjustment by the second prism, projects from the second prism top, enter back into the first rib
Vertex portion realizes that horizontal direction angle adjusts total reflection, finally exports laser at the top of eyeglass.
2. a kind of laser light path system as described in claim 1, it is characterized in that, first prism is Dove prism.
3. a kind of laser light path system as described in claim 1, it is characterized in that, second prism is Dove prism.
4. a kind of laser light path system as described in claim 1, it is characterized in that, first prism is right-angle prism.
5. a kind of laser light path system as described in claim 1, it is characterized in that, second prism is right-angle prism.
6. a kind of laser light path system as described in claim 1, it is characterized in that, second prism is corner prism.
7. a kind of laser light path system as described in claim 1, it is characterized in that, first prism and the second prism, eyeglass
It is set in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811154394.0A CN109217087A (en) | 2018-09-30 | 2018-09-30 | A kind of laser light path system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811154394.0A CN109217087A (en) | 2018-09-30 | 2018-09-30 | A kind of laser light path system |
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| Publication Number | Publication Date |
|---|---|
| CN109217087A true CN109217087A (en) | 2019-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811154394.0A Pending CN109217087A (en) | 2018-09-30 | 2018-09-30 | A kind of laser light path system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112652941A (en) * | 2020-12-23 | 2021-04-13 | 北京遥测技术研究所 | High-energy, high-stability and high-reliability slab laser |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2049267A (en) * | 1979-04-17 | 1980-12-17 | Ferranti Ltd | Laser apparatus |
| CN105958309A (en) * | 2016-07-07 | 2016-09-21 | 中国人民解放军武汉军械士官学校 | Pyramid prism-based array laser self-restraint multi-pass folded resonator |
| CN209217424U (en) * | 2018-09-30 | 2019-08-06 | 江苏亮点光电科技有限公司 | A kind of laser light path system |
-
2018
- 2018-09-30 CN CN201811154394.0A patent/CN109217087A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2049267A (en) * | 1979-04-17 | 1980-12-17 | Ferranti Ltd | Laser apparatus |
| CN105958309A (en) * | 2016-07-07 | 2016-09-21 | 中国人民解放军武汉军械士官学校 | Pyramid prism-based array laser self-restraint multi-pass folded resonator |
| CN209217424U (en) * | 2018-09-30 | 2019-08-06 | 江苏亮点光电科技有限公司 | A kind of laser light path system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112652941A (en) * | 2020-12-23 | 2021-04-13 | 北京遥测技术研究所 | High-energy, high-stability and high-reliability slab laser |
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