CN202421611U - Holographic optical path - Google Patents
Holographic optical path Download PDFInfo
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- CN202421611U CN202421611U CN 201220015497 CN201220015497U CN202421611U CN 202421611 U CN202421611 U CN 202421611U CN 201220015497 CN201220015497 CN 201220015497 CN 201220015497 U CN201220015497 U CN 201220015497U CN 202421611 U CN202421611 U CN 202421611U
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- holographic
- light path
- composition element
- light
- grating
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Abstract
The utility model provides a holographic optical path which comprises a laser diode, a holographic optical grating and a holographic combination element, wherein the holographic optical grating is used for deflecting laser emitted by the laser diode, the holographic combination element is used for aligning and filtering the diverging light and displaying the holographic differential picture; the holographic combination element is a combined holographic element with property of lens and property of imaging hologram and is formed by a light-sensing glue film and two piece of glasses glued on both sides of the light-sensing glue film. The holographic optical path has the characteristics of few elements, multiple styles of optical path and short length, so that the product using the optical path is compact and variable in structure, and moreover, the holographic optical path overcomes the shortcomings of long length, multiple elements, complex optical path and single style of optical path.
Description
Technical field
The utility model belongs to the optical collimator technical field, is specifically related to a kind of holographic light path.
Background technology
Principle and characteristics at the research gun sight at first will be said some characteristics of human eye before, because which kind of gun sight all will be to human eye, the characteristic of not first talking about person of good sense's eye just is difficult to explain from the basis principle of work of gun sight.Human eye has two characteristics; At first be when receiving a branch of directional light; Can think that the position of light source is at unlimited distance, can't directly judge naked eyes at this moment the distance of light source, just such as we stare at the sun see, or the time by the searchlight direct projection at a distance.Secondly human eye also is easy to have dust thrown into the eyes, when light through reflection, reflected when getting into human eye again, human eye is the actual location that can't directly judge light source, this has just seen the virtual image.Understood the characteristic of human eye, also will say the principle of common reflex sight again, be used for well doing a contrast with the hologram diffraction gun sight.The light that target is sent sees through spectroscope and gets into human eye, and human eye is seen the real image of target.And the light of illuminator irradiation graticule passes on spectroscopical concave surface, by this concave surface these light is reflected into directional light again and gets into human eye.Human eye is the actual location that can't discern that graticule at this moment, can only see its virtual image, that red point just, and think that this similarly is at unlimited distance.The real image of the target of seeing the virtual image of this graticule and human eye stacks up and just can be used for aiming.Be directional light because of what got into human eye again by spectroscopical concave reflection; So human eye can both be seen that virtual image on which direction; Moved several kilometers on the ground at short notice like you, and the position of seeing the sun with still the same before you move be a reason.On the contrary; Because just can see that red point when having only human eye to receive the directional light that spectroscope reflects; That also is in other words, on a reflex sight that has made zero, if you can see that red point; This just shows that your sight line and the boresight of firearms are parallel, just can shoot so you only need aim at the mark red point.
Taking aim at the red point of seeing on the tool at hologram diffraction then is that what human eye was received also is a branch of directional light, so human eye will think that also the differentiation image slices of oneself seeing is on the distance of infinity with the hologram image of the graticule of holographic technique generation.To take aim at the tool principle similar though hologram diffraction is taken aim at tool principle and reflective red point, and holographic taking aim at has more advantages that holographic technique has.So holography is taken aim at tool and received more concern and attention in recent years, also be present most popular in the world aiming utensil.Take aim in tool patent and the version in existing holography; Basically all be the light path system that adopts hologram and holographic grating or holographic lens to make up; In various degree have that element is many, length is big, light path is complicated and the first-class defective of style sheet; And this patent utilizes up-to-date holographic composition element and grating to make up cleverly, makes this light path system novelty not lose precision again, and the structure of taking aim at tool of utilizing this light path system to make can be more diversified.
Summary of the invention
The purpose of the utility model is to provide a kind of more simple, changeable, novel tool light path of taking aim at, to overcome the existing defective that existing system length is big in the tool, element is many, light path is complicated and pattern is single of taking aim at.
For reaching above-mentioned purpose; The utility model provides a kind of holographic light path, comprises laser diode, and its special character is; Also comprise the holographic grating that this laser diode emitted laser is carried out deviation; To diverging light collimate, the holographic composition element of filtering and display holography differentiation image, this holography composition element is to have lens properties and the combination holographic element that becomes image hologram character concurrently, is made up of dry-film resist and two blocks of glass being glued at this dry-film resist two sides.
It is following that two kinds of light paths wherein are provided with pattern:
Described holographic grating is arranged on the light path of shoot laser of said laser diode, and said holographic composition element is arranged on the laser output light path behind this holographic grating diffraction deviation.
Said holographic composition element is arranged on the shoot laser light path of said laser diode, and said holographic grating is arranged on the output light path of this holography composition element.
Said laser diode emitted laser can incide on the said holographic grating by certain angle according to designing requirement.
Vertical or the near normal of said laser diode emitted laser incides said holographic composition element.
Said holographic grating is reflective holographic grating or transmission-type holographic grating.
Said holographic composition element is holographic composition element of transmission-type or reflective holographic composition element.
Said holographic composition element is arranged on the correct position on the said holographic grating diffraction light emitting light path of distance, makes that the diffraction light of this holography composition element is a directional light.
Said holographic composition element is arranged on the oblique upper of said holographic grating and parallel with this holographic grating or near parallel.
Said holographic composition element is arranged on the correct position of described laser diode emitting light path, makes that the light that is diffracted on the holographic grating is directional light.
The utility model has the advantages that: the element that light path is used is few, the light path pattern is many, shortened the length of light path system; Make that also the product structure of this light path system is more compact versatile and flexible, overcome the existing defective that existing system length is big in the tool, element is many, light path is complicated and pattern is single of taking aim at.
Description of drawings
Combine accompanying drawing and case study on implementation that the utility model is elaborated at present:
Fig. 1 is the light path system that the holographic composition element of reflective holographic grating and transmission-type is formed.
Fig. 2 is the light path system synoptic diagram of the parallel placement with the transmission-type holographic grating of reflective holographic composition element when using.
Light path system synoptic diagram when Fig. 3 places as form for reflective holographic composition element and the transmission-type grating while at grade.
Among the figure: 1, laser diode; 2, holographic grating; 3, holographic composition element; 4, the image of holographic differentiation figure; 5, eyes.
Embodiment
As shown in Figure 1; Be provided with in the present embodiment: a laser diode 1, holographic grating 2 and a holographic composition element 3; This holography composition element 3 is positioned at the oblique upper of holographic grating 2, places by certain angle with holographic grating 2, is positioned on the emitting light path of holographic grating 2.
Wherein, Laser diode 1 can for the diode of transmitting green visible light, also can be for launching the diode of red visible light; The light beam that holographic grating 2 is used for sending laser diode 1 carries out deviation, and the area that makes divergent beams just can be according to holographic composition element 3 in short distance, thereby is that the shortening of the length of this kind light path system provides guarantee; Holographic grating 2 uses by suitable angle coupling with holographic composition element 3 simultaneously, can play the effect of compensation wave length shift.
Angle of diffraction situation of change when drift takes place the laser diode wavelength between holographic grating and the hologram is introduced in patent ZL200920218958.2 with concrete compensation relationship to some extent, has not just specifically derived at this.
Light path system synoptic diagram when being illustrated in figure 2 as the 2 parallel placements of reflective holographic composition element 3 and transmission-type holographic grating and using; This transmission-type holographic grating 2 is positioned at the oblique upper of reflective holographic composition element 3; Place by certain angle with this reflective holographic composition element 3; Be positioned on the emitting light path of this reflective holographic composition element 3; The diffraction light of this transmission-type holographic grating 2 is directional lights, and eyes 5 see through this transmission-type holographic grating 2 is seen the holography differentiation figure of record in the reflective holographic composition element 3 at its rear image (virtual image) 4.
Wherein laser diode 1 can be the diode of transmitting green visible light; Also can be for launching the diode of red visible light; The light beam that holographic composition element 3 is used for sending laser diode carries out the effect of deviation collimation and the holographic differentiation of diffraction image; This reflective holographic grating 2 can play the effect of holographic composition element 3 wave length shifts of compensation, and the effect in other effect and the accompanying drawing 1 is basic identical, does not just do one by one at this and has detailed.
Light path system synoptic diagram when being illustrated in figure 3 as reflective holographic composition element 3 and placing at grade as form simultaneously with transmission-type holographic grating 2; Wherein, Transmission-type holographic grating 2 is positioned at the rear of reflective holographic composition element 3; Place by certain angle with reflective holographic composition element 3, be positioned on the emitting light path of this reflective holographic composition element 3.The light beam that reflective holographic composition element 3 is used for sending laser diode 1 carries out the effect of deviation collimation and the holographic differentiation of diffraction image, and this transmission-type holographic grating 2 can play the effect of the differentiation position of the hologram in the holographic composition element 3 of compensatory reflex formula with wave length shift.
More than among each embodiment; The all vertical or near normal of laser diode 1 emitted laser incides on holographic grating 2 or the holographic composition element 3; And as last element of light path system no matter be transmission-type or reflective holographic grating 2 or holographic composition element 3; The diffraction light of its generation all is directional lights, and it is the virtual image 4 that people watch the image of holographic differentiation figure by this directional light.
Holographic composition element is 3 to have lens properties and the combination holographic element that becomes image hologram character concurrently, and it is made up of dry-film resist and two blocks of glass being glued at this dry-film resist two sides.
It should be noted that everyly all can reach the same or similar light path of the said function of the light path that is provided with present embodiment, all should within the coverage of present embodiment, belong within the protection domain of present patent application through the prior art means.
Claims (10)
1. holographic light path; Comprise laser diode; It is characterized in that: also comprise the holographic grating that this laser diode emitted laser is carried out deviation; To diverging light collimate, the holographic composition element of filtering and display holography differentiation image, this holography composition element is to have lens properties and the combination holographic element that becomes image hologram character concurrently, is made up of dry-film resist and two blocks of glass being glued at this dry-film resist two sides.
2. holographic light path as claimed in claim 1 is characterized in that: said holographic grating is arranged on the light path of shoot laser of said laser diode, and said holographic composition element is arranged on the output light path of the laser behind this holographic grating diffraction deviation.
3. holographic light path as claimed in claim 1; It is characterized in that this light path can also be provided with like this: said holographic composition element is arranged on the light path of shoot laser of said laser diode, and said holographic grating is arranged on the output light path of this holography composition element.
4. holographic light path as claimed in claim 2 is characterized in that: said laser diode emitted laser can incide on the said holographic grating by certain angle according to designing requirement.
5. holographic light path as claimed in claim 3 is characterized in that: the vertical or near normal of said laser diode emitted laser incides said holographic composition element.
6. like claim 1 or 2 or 3 or 4 or 5 described holographic light paths, it is characterized in that: said holographic grating is reflective holographic grating or transmission-type holographic grating.
7. holographic light path as claimed in claim 6 is characterized in that: said holographic composition element is holographic composition element of transmission-type or reflective holographic composition element.
8. holographic light path as claimed in claim 2 is characterized in that: said holographic composition element is arranged on the correct position on the said holographic grating diffraction light emitting light path of distance, makes that the diffraction light of this holography composition element is a directional light.
9. holographic light path as claimed in claim 2 is characterized in that: said holographic composition element is arranged on the oblique upper of said holographic grating and parallel with this holographic grating or near parallel.
10. holographic light path as claimed in claim 3 is characterized in that: said holographic composition element is arranged on the correct position of described laser diode emitting light path, makes that the light that is diffracted on the holographic grating is directional light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220015497 CN202421611U (en) | 2012-01-14 | 2012-01-14 | Holographic optical path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220015497 CN202421611U (en) | 2012-01-14 | 2012-01-14 | Holographic optical path |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202421611U true CN202421611U (en) | 2012-09-05 |
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ID=46746358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220015497 Expired - Lifetime CN202421611U (en) | 2012-01-14 | 2012-01-14 | Holographic optical path |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202421611U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520512A (en) * | 2012-01-14 | 2012-06-27 | 西安华科光电有限公司 | Holographic optical path |
| CN106094240A (en) * | 2016-06-30 | 2016-11-09 | 江汉大学 | Sighting device |
| TWI622505B (en) * | 2017-02-15 | 2018-05-01 | E Lead Electronic Co Ltd | Narrow-angle diffuser head-up display device |
-
2012
- 2012-01-14 CN CN 201220015497 patent/CN202421611U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520512A (en) * | 2012-01-14 | 2012-06-27 | 西安华科光电有限公司 | Holographic optical path |
| CN106094240A (en) * | 2016-06-30 | 2016-11-09 | 江汉大学 | Sighting device |
| CN106094240B (en) * | 2016-06-30 | 2020-03-27 | 江汉大学 | Aiming device |
| TWI622505B (en) * | 2017-02-15 | 2018-05-01 | E Lead Electronic Co Ltd | Narrow-angle diffuser head-up display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |
|
| CX01 | Expiry of patent term |