CN203930303U - Photoimaging system and there is the projection imaging system of this photoimaging system - Google Patents
Photoimaging system and there is the projection imaging system of this photoimaging system Download PDFInfo
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- CN203930303U CN203930303U CN201420282679.3U CN201420282679U CN203930303U CN 203930303 U CN203930303 U CN 203930303U CN 201420282679 U CN201420282679 U CN 201420282679U CN 203930303 U CN203930303 U CN 203930303U
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Abstract
The utility model is applicable to optical devices technologies field, discloses a kind of photoimaging system and has had the projection imaging system of this photoimaging system.Photoimaging system comprises first, second microlens array, lens use convex lens form, first and second microlens array is spacing setting or spacing setting dorsad in opposite directions, identical and the focal length of the structural parameters of each first and second dimpling lens arra equates, the optical axis of first, second dimpling lens is corresponding and coincidence one by one, and the distance between first, second dimpling lens arra is twice or the same unit magnitude of the focal length of first, second dimpling lens.Projection imaging system comprises light projection system, is reflected into virtual image system and above-mentioned photoimaging system.The photoimaging system that the utility model provides and there is the projection imaging system of this photoimaging system, it can obtain high brightness, high-contrast, high definition, high-resolution image, avoided laser speckle effect, image, font edge clear, imaging results is good.
Description
Technical field
The utility model belongs to optical devices technologies field, relates in particular to a kind of photoimaging system and has the projection imaging system of this photoimaging system.
Background technology
At present, micro projection imaging system, it utilizes LED (light emitting diode) as light source mostly, and light utilization efficiency is low, is unfavorable for bright occasion use.
Laser monochromaticity is good, high directivity, and brightness is high.Use laser as Projection Display light source, have color true to nature, clear picture, is applicable to the advantage of large and small picture disply, can obtain high-brghtness picture images.But in prior art, in the imaging system at laser as display light source, the imaging system that the general projection film that uses is optical projection system, will inevitably produce some diffusions like this, with laser speckle effect, causes brightness of image to weaken with resolution and declines.For small size picture, the diffusion of laser and speckle are more obvious on image resolution ratio impact.Projection imaging system for using micro-projector as image source system, must have an image imaging system, receives the projection light of micro-projector, forms the image visual to human eye.Reflective, transmission-type two classes that projection film generally can be divided into; Reflective for just throwing, transmission-type is for rear-projection; No matter being front throwing or rear-projection, is all the diffusion principle based on light, makes to enter human eye with the light source of image information.Transmission-type projection film: when light source sees through projection film, lose a part of light intensity, have that very person is up to 40%, this just directly causes the brightness deterioration of image, and the service efficiency of light is low.When laser passes through projection film, make light that the phenomenon of many refractions, reflection and scattering occur, reach the effect that optics spreads.Due to the effect of astigmatic particle diffusion, can make optical radiation area increase, but reduce the light intensity of unit area, lower luminance brightness.Simultaneously, when Ear Mucosa Treated by He Ne Laser Irradiation is upper to optically roughness surface (being the surface that mean fluctuation is greater than number of wavelengths magnitude), result due to the wavelet coherence stack of a large amount of random distribution bin institute scattering on surface, the reflection light field forming has random spatial light intensity and distributes, present granular structure, laser speckle effect, also causes the reduction of the resolution of image, make image, font edge fog, sharpness reduces.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, a kind of photoimaging system is provided and has had the projection imaging system of this photoimaging system, and its imaging resolution is high, sharpness is high, and imaging effect is good.
The technical solution of the utility model is: a kind of photoimaging system, comprise the first dimpling lens arra and the second dimpling lens arra, described the first dimpling lens arra, the second dimpling lens arra is spacing setting or spacing setting dorsad in opposite directions, the first dimpling lens arra described in each, the second dimpling lens arra micro unit lens arrangement parameter is identical and focal length equal, in described the first dimpling lens arra, in the optical axis of dimpling lens and described the second dimpling lens arra, the optical axis of dimpling lens is corresponding and overlap one by one described in each, distance between the first dimpling lens arra and the second dimpling lens arra is twice or the same unit magnitude of the focal length of dimpling lens arra.
Alternatively, described the first dimpling lens arra and the second dimpling lens arra are divided on first substrate and second substrate in one side in opposite directions.
Alternatively, described the first dimpling lens arra and the second dimpling lens arra are divided on the two sides of same substrate.
Alternatively, the thickness of described substrate is twice or the same unit magnitude of the focal length of the first dimpling lens arra or the second dimpling lens arra.
Alternatively, the plated surface of described first substrate, second substrate is provided with anti-reflection film.
Alternatively, the plated surface of described substrate is provided with anti-reflection film.
Alternatively, the microstructure unit of described the first dimpling lens arra, the second dimpling lens arra is square, rectangle or hexagon.
The utility model also provides a kind of projection imaging system, comprises light projection system and be reflected into virtual image system, also comprise above-mentioned and for by the light refraction of light projection system to described in be reflected into the photoimaging system of virtual image system.
Alternatively, described light projection system is the micro-projector that light source adopts RGB tri-look laser diodes.
Alternatively, described in, being reflected into virtual image system comprises for image being reflexed to curved reflector or arrangement of mirrors or arrangement of mirrors and the windshield of eyes.
The photoimaging system that the utility model provides and there is the projection imaging system of this photoimaging system, its the first dimpling lens arra and the second dimpling lens arra not only have the basic functions such as the focusing, imaging of conventional lenses, and have the advantages that unit size is little, integrated level is high, make it can complete the function that traditional optical element cannot complete.Light is by after the first dimpling lens arra and the second dimpling lens arra, and light obtains certain diffusion, and this has just guaranteed that human eye can receive and has observed image.But its spread angle is controlled, uncontrollable unlike random diffusion, the spread angle of common diffusion barrier.By the first dimpling lens arra and the second dimpling lens arra, the known angle of divergence hot spot when hot spot is more concentrated, thereby obtain the image of high brightness, high-contrast, high definition, for next step optical system (reflecting system, be reflected into virtual image system) provides good image source, the resolution of image is high, avoided laser speckle effect, image, font edge clear, imaging results is good.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the floor map of the photoimaging system that provides of the utility model embodiment;
Fig. 2 is the part light path schematic diagram of the photoimaging system that provides of the utility model embodiment;
Fig. 3 is the part light path schematic diagram of the photoimaging system that provides of the utility model embodiment;
Fig. 4 is the floor map of the photoimaging system that provides of the utility model embodiment;
Fig. 5 is the part plan schematic diagram of the first dimpling lens arra in the photoimaging system that provides of the utility model embodiment;
Fig. 6 is the floor map of another photoimaging system of providing of the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
It should be noted that, when element is called as " being fixed on " or " being arranged at " another element, it can be directly on another element or may have centering elements simultaneously.When an element " being connected in " another element of being known as, it can be directly connected to another element or may have centering elements simultaneously.
Also it should be noted that, the orientation term such as left and right, upper and lower in the present embodiment, is only that relative concept or the normal operating condition of product of take are reference each other, and should not be regarded as have restrictive.
As shown in Figure 1 to 4, a kind of photoimaging system that the utility model embodiment provides, can be for projector, look squarely in the equipment such as display instrument.Above-mentioned photoimaging system comprises the first dimpling lens arra 1 and the second dimpling lens arra 2, described the first dimpling lens arra 1, the second dimpling lens arra 2 in opposite directions spacing (as shown in Figure 1) arranges or spacing (as shown in Figure 6) setting dorsad, the first dimpling lens 11 described in each in the first dimpling lens arra 1, in the second dimpling lens arra 1, the identical and focal length of the structural parameters of the second dimpling lens 21 equates, in described the first dimpling lens arra 1, in the optical axis of the first dimpling lens 11 and described the second dimpling lens arra 2, the optical axis of the second dimpling lens 21 is corresponding and overlap one by one described in each, the first dimpling lens 11, the optical axis coincidence of the second dimpling lens 21, the first dimpling lens 11, the parameter of the second dimpling lens 21, structure can be identical, the first dimpling lens 11, the second dimpling lens 21 can be relatively or back to.While actually employed, incident light favours parallel optical axis, while existing compared with clip angle, when these light are by after the first dimpling lens arra 1, light beam convergent point off-focal, when being irradiated to the second dimpling lens arra 2, divergence of beam, or assemble.The angle of dispersing convergence can be determined by the focal length of two groups of lens (i.e. the first dimpling lens 11, the second dimpling lens 21).And with respect to diffuse scattering, light scattering angle is little, can make optical radiation area reduce, but in visual orientation, increase the light intensity of unit area, improved luminance brightness.After the first dimpling lens arra 1 and the second dimpling lens arra 2, light obtains certain diffusion, and this has just guaranteed that human eye can receive and has observed image.But its spread angle is controlled, uncontrollable unlike random diffusion, the spread angle of common diffusion barrier.By the first dimpling lens arra 1 and the second dimpling lens arra 2, the known angle of divergence hot spot when hot spot is more concentrated, and brightness is higher.Spread angle and each the first dimpling lens 11, the size of the second dimpling lens 21 and the Range-based between it.Distance between the first dimpling lens arra 1 and the second dimpling lens arra 2 is twice or the same unit magnitude of the focal length of the first dimpling lens 11, the second dimpling lens 21, to guarantee the convergence effect to light path of lenticule (the first dimpling lens 11, the second dimpling lens 12).According to above-described optical principle, hot spot bundle has certain size dimension.After the light deflection of lens, in focal range, assemble, crossed the rear light beam of focal length point and can disperse, can not guarantee that the basic role of hot spot bundle is in a pair of lenticule of correspondence.When the distance between the first dimpling lens arra 1 and the second dimpling lens arra 2 is the twice of focal length of the first dimpling lens 11, the second dimpling lens 21 or same unit magnitude, to guarantee the convergence effect to light path of lenticule (the first dimpling lens 11, the second dimpling lens 21), can reach and highlight and put forward high-resolution effect, the angle of as mentioned above, dispersing convergence can be determined by the focal length of two lens.For guaranteeing that the basic role of hot spot bundle is in a pair of first dimpling lens 11 of correspondence, the second dimpling lens 21.The first dimpling lens arra 1 and the second dimpling lens arra 2, the structural parameters of its micro unit and the unit of laser facula can adopt same magnitude design.
As shown in Figure 1 to 4, photoimaging system provided by the utility model, adopt dimpling lens arra (i.e. the first dimpling lens arra 1 and the second dimpling lens arra 2) to substitute common projection film, dimpling lens arra not only has the basic functions such as the focusing, imaging of conventional lenses, and have the advantages that unit size is little, integrated level is high, make it can complete the function that traditional optical element cannot complete, and can form many novel optical systems.While actually employed, light is penetrated light and is favoured parallel optical axis, while existing compared with clip angle, when these light are by after the first dimpling lens arra 1, light beam convergent point off-focal, when being irradiated to the second dimpling lens arra 2, divergence of beam, or assemble.The angle of dispersing, assembling can be determined by the focal length of two lens.And come with respect to diffuse scattering, light scattering angle is little, can make optical radiation area reduce, in visual orientation, still increased the light intensity of unit area, improved luminance brightness.The second dimpling lens arra 2 has certain corrective action.The second dimpling lens arra 2 has been eliminated the diffraction pattern that the first dimpling lens arra 1 produces, thereby obtain the image of high brightness, high-contrast, high definition, for next step optical system (reflecting system, be reflected into virtual image system) provides good image source, the resolution of image is high, avoided laser speckle effect, image, font edge clear, imaging results is good.
Particularly, as shown in Figure 1 to 4, described the first dimpling lens arra 1 and the second dimpling lens arra 2 are divided on first substrate 12 and second substrate 22 in one side in opposite directions.First substrate 12 is parallel with second substrate 22 at a distance of arranging.The another side that first substrate 12 and second substrate 22 are not provided with the first dimpling lens arra 1 and the second dimpling lens arra 2 can be plane.In concrete application, the plated surface of described first substrate 12, second substrate 22 is provided with anti-reflection film, to reduce catoptrical intensity, increase the transmitance of light, eliminate reflected light it is produced to harmful effect, thereby increase transmission light intensity, make optical system imaging more clear.First substrate 12 and second substrate 22 can be transparent glass or organic glass etc.
Or as an alternative, as shown in Figure 6, described the first dimpling lens arra 1 and the second dimpling lens arra 2 also can be divided on the two sides of same substrate 3, its more compact structure.Particularly, the thickness of described substrate 3 be the first dimpling lens 11, the second dimpling lens 21 focal length twice or for same unit magnitude, to improve imaging results.Particularly, the plated surface of described substrate 3 is provided with anti-reflection film, to reduce catoptrical intensity, thereby increases transmission light intensity, makes optical system imaging more clear.Substrate can be transparent glass or organic glass etc.
In concrete application, the microstructure unit of described the first dimpling lens arra 1, the second dimpling lens arra 2 is the suitable shapes such as square, rectangle or hexagon.As shown in Figure 5, in the present embodiment, the microstructure unit of described the first dimpling lens 11, the second dimpling lens 21 is regular hexagon.Suppose, here to arrive imaging system laser facula be 6 microns to laser, and so described the first dimpling lens 11, the hexagonal external diameter of a circle of the second dimpling lens 21 be also 6 microns of left and right, i.e. same unit magnitude, and parameter can be adjusted among a small circle certainly.
The utility model also provides a kind of projection imaging system, comprise and light projection system and be reflected into virtual image system also comprise above-mentioned photoimaging system, above-mentioned photoimaging system for by the light refraction of light projection system to described in be reflected into virtual image system.
Particularly, described light projection system can be the micro-projector of light source employing RGB tri-look laser diodes etc.Light projection system can be finger micro-projector, includes but not limited to DLP, LCOS projector etc.
Particularly, described in, being reflected into virtual image system comprises for image being reflexed to curved reflector or arrangement of mirrors or arrangement of mirrors and the windshield etc. of eyes.Curved mirror effect: the image forming in imaging system, through the reflection of curved mirror, arrive human eye, after mirror, form the virtual image.Meanwhile, curved mirror also has enlarged image and the effect of elongating image-forming range, imaging effect is more dazzled, to meet different user demands.
Side by side, at the two sides of (organic glass or glass) substrate plating anti-reflection film, in order to increase the transmitance of light, eliminate reflected light it is produced to harmful effect.
While actually employed, incident light favours parallel optical axis, while existing compared with clip angle, when these light are by after the first dimpling lens arra 1, light beam convergent point off-focal, when being irradiated to the second dimpling lens arra 2, divergence of beam, or assemble.The angle of dispersing, assembling can be determined by the focal length of two lens (the first dimpling lens 11, the second dimpling lens 21).And with respect to diffuse scattering, light scattering angle is little, can make optical radiation area reduce, but in visual orientation, increase the light intensity of unit area, improved luminance brightness.After the first dimpling lens arra 1 and the second dimpling lens arra 2, light obtains certain diffusion, and this has just guaranteed that human eye can receive and has observed image.But its spread angle is controlled, uncontrollable unlike random diffusion, the spread angle of common diffusion barrier.By the first dimpling lens arra 1 and the second dimpling lens arra 2, the known angle of divergence hot spot when hot spot is more concentrated, and brightness is higher.After the light deflection of lens, in focal range, assemble, crossed the rear light beam of focal length point and can disperse, can not guarantee that the basic role of hot spot bundle is in a pair of lenticule of correspondence.Distance need have a restriction.If if not this, hot spot is not had to converging action, can not reach and highlight and put forward high-resolution effect.The Range-based of the size of spread angle and each the first dimpling lens 11 and the second dimpling lens 21 and the every pair of first dimpling lens 11 and the second dimpling lens 21, by making the distance between the first dimpling lens arra 1 and the second dimpling lens arra 2, be the first dimpling lens 11, the twice of the focal length of the second dimpling lens 21, or, distance between the first dimpling lens arra 1 and the second dimpling lens arra 2 is set to same unit magnitude, to guarantee lenticule (the first dimpling lens 11, the second dimpling lens 21) the convergence effect to light path, can reach and highlight and put forward high-resolution effect, imaging results is good.
Above-mentioned projection imaging system can be used as HUD: projector (light projection system)+photoimaging system (lens arra)+curved reflector (being reflected into virtual image system).
Particularly, projector (light projection system)+photoimaging system (lens arra)+curved reflector (being reflected into virtual image system) forms HUD, HUD is as being that a device can be used alone, and light path arrives human eye via HUD.
Light path: HUD (projector (light projection system)---photoimaging system (lens arra)---curved reflector (being reflected into virtual image system).
Above-mentioned projection imaging system is projector of available family also, and its light channel structure form is as follows:
Projector+photoimaging system------curved reflector----human eye.
Projector+photoimaging system-----glass----human eye.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace or improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a photoimaging system, comprise the first dimpling lens arra and the second dimpling lens arra, it is characterized in that, described the first dimpling lens, the second dimpling lens are spacing setting or spacing setting dorsad in opposite directions, the first dimpling lens described in each, identical and the focal length of the structural parameters of the second dimpling lens equates, in described the first dimpling lens arra, in the optical axis of the first dimpling lens and described the second dimpling lens arra, the optical axis of the second dimpling lens is corresponding and overlap one by one described in each, distance between the first dimpling lens arra and the second dimpling lens arra is the first dimpling lens, the twice of the focal length of the second dimpling lens or same unit magnitude.
2. photoimaging system as claimed in claim 1, is characterized in that, described the first dimpling lens arra and the second dimpling lens arra are divided on first substrate and second substrate in one side in opposite directions.
3. photoimaging system as claimed in claim 1, is characterized in that, described the first dimpling lens arra and the second dimpling lens arra are divided on the two sides of same substrate.
4. photoimaging system as claimed in claim 3, is characterized in that, the thickness of described substrate is twice or the same unit magnitude of the focal length of the first dimpling lens, the second dimpling lens.
5. photoimaging system as claimed in claim 2, is characterized in that, the plated surface of described first substrate, second substrate is provided with anti-reflection film.
6. photoimaging system as claimed in claim 3, is characterized in that, the plated surface of described substrate is provided with anti-reflection film.
7. the photoimaging system as described in any one in claim 1 to 5, is characterized in that, the microstructure unit of described the first dimpling lens arra, the second dimpling lens arra is square, rectangle or hexagon.
8. a projection imaging system, comprises light projection system and is reflected into virtual image system, it is characterized in that, also comprise as described in any one in claim 1 to 7 and for by the light refraction of light projection system to as described in be reflected into the photoimaging system of virtual image system.
9. projection imaging system as claimed in claim 8, is characterized in that, described light projection system is the micro-projector that light source adopts RGB tri-look laser diodes.
10. projection imaging system as claimed in claim 8 or 9, is characterized in that, described in be reflected into virtual image system and comprise for image being reflexed to curved reflector or arrangement of mirrors or arrangement of mirrors and the windshield of eyes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420282679.3U CN203930303U (en) | 2014-05-29 | 2014-05-29 | Photoimaging system and there is the projection imaging system of this photoimaging system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420282679.3U CN203930303U (en) | 2014-05-29 | 2014-05-29 | Photoimaging system and there is the projection imaging system of this photoimaging system |
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| CN203930303U true CN203930303U (en) | 2014-11-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995420A (en) * | 2014-05-29 | 2014-08-20 | 深圳市矽韦氏科技有限公司 | Optical imaging system and projection imaging system with same |
| WO2023011192A1 (en) * | 2021-08-06 | 2023-02-09 | 华为技术有限公司 | Lens, laser transmission system, and electronic device |
-
2014
- 2014-05-29 CN CN201420282679.3U patent/CN203930303U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995420A (en) * | 2014-05-29 | 2014-08-20 | 深圳市矽韦氏科技有限公司 | Optical imaging system and projection imaging system with same |
| CN103995420B (en) * | 2014-05-29 | 2016-03-30 | 深圳点石创新科技有限公司 | Photoimaging systems and there is the projection imaging system of this photoimaging systems |
| WO2023011192A1 (en) * | 2021-08-06 | 2023-02-09 | 华为技术有限公司 | Lens, laser transmission system, and electronic device |
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Owner name: SHENZHEN DIANSHI INNOVATION TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHENZHEN SIVISION TECHNOLOGY CO., LTD. |
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Address after: 518000 Guangdong city of Shenzhen province Nanshan District South Road four Keyuan Road West R4 innovation building A 409B Patentee after: SHENZHEN DIANSHI INNOVATION TECHNOLOGY CO., LTD. Address before: 518000 Guangdong city of Shenzhen province Nanshan District South Road four Keyuan Road West R4 innovation building A 409B Patentee before: Shenzhen silicon Webster Science and Technology Ltd. |