CN211979244U - Aspheric diffraction optical lens - Google Patents
Aspheric diffraction optical lens Download PDFInfo
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- CN211979244U CN211979244U CN202021087859.8U CN202021087859U CN211979244U CN 211979244 U CN211979244 U CN 211979244U CN 202021087859 U CN202021087859 U CN 202021087859U CN 211979244 U CN211979244 U CN 211979244U
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Abstract
The utility model discloses an aspheric diffraction optical lens, concretely relates to optical element, including the lens body, lens body one side fixed connection double-layer lens base member, lens body one side is equipped with the concave mirror, concave mirror one side is equipped with adjusting device, adjusting device one side fixed mounting adjusts the head, adjust the flexible pipe of head one side fixed connection, the fixed slip track of seting up of telescopic pipe inner wall, the slip track inner wall is equipped with the external screw thread pole, the embodiment of the utility model provides an aspheric diffraction optical lens, accessible adjust the concave mirror and change the focus, reduce light, rotate adjusting device and make concave mirror and lens body apart from changing to this effect that reaches focusing, solved when the position of light source or power are different, the image also can reduce the image rate thereupon, or light intensity is by middle to both ends, The problem of end-to-center attenuation.
Description
Technical Field
The utility model relates to an optical element technical field, concretely relates to aspheric surface diffraction optical lens.
Background
An aspheric optical lens is a commonly used optical element and is widely used in cameras, video cameras, lenses of virtual imaging systems (e.g., head-mounted display eyepieces), and the like. In these optical imaging systems, generally, the aspheric optical lens can effectively achieve a large field of view, a large exit pupil ratio, high definition, and low distortion, and at a high magnification, the imaging optical system can be more simplified and the performance is more reliable.
Imaging principle of concave lens: an erect reduced virtual image is formed by the concave lens, and the object and the image are on the same side of the lens. When the object is a real object, an erect and reduced virtual image is formed, and the image and the object are on the same side of the lens; when the object is a virtual object and the distance between the concave lens and the virtual object is within one focal length (absolute value), an upright and magnified real image is formed, and the image and the object are on the same side of the lens;
imaging principle of convex lens: the convex lens has a magnifying effect, the focal length of the convex lens is doubled, real, virtual and inverted, parallel light rays (such as sunlight) are parallel to a main optical axis (a connecting line of spherical centers of two spherical surfaces of the convex lens is called as the main optical axis of the convex lens) and enter the convex lens, light is refracted twice on two surfaces of the convex lens and then is concentrated on one point on the axis, the point is called as the focal point of the convex lens, the convex lens is respectively provided with a real focal point on two sides of the lens, and when the convex lens is a thin lens, the distances from the two focal points to the center of the lens are approximately equal;
the prior art has the following defects: when the position or the intensity of the existing light source is different, the imaging rate of an image is reduced, or the light intensity is attenuated from the middle to two ends or from two ends to the middle.
Therefore, it is necessary to invent an aspherical diffractive optical lens.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides an aspheric surface diffraction optical lens, the accessible is adjusted the concave mirror and is changed the focus, reduces light, rotates adjusting device and makes the concave mirror and change with lens body distance to this effect that reaches focusing, is different with the position or the power of solving current when the light source, and the image also can reduce the imaging rate thereupon, or by middle problem to both ends, both ends to middle decay.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: an aspheric diffraction optical lens comprises a lens body, wherein one side of the lens body is fixedly connected with a double-layer lens base body, one side of the lens body is provided with a concave mirror, and one side of the concave mirror is provided with an adjusting device;
the adjustable glass cement mortar is characterized in that an adjusting head is fixedly installed on one side of the adjusting device, one side of the adjusting head is fixedly connected with a telescopic pipe, a sliding track is fixedly formed in the inner wall of the telescopic pipe, an external threaded rod is arranged on the inner wall of the sliding track, an internal threaded rod is arranged on the inner wall of the external threaded rod, one end of the internal threaded rod is fixedly connected with a fixed pipe, the bottom of the adjusting device is fixedly connected with a fixed plate, and the inner wall of the.
Preferably, the concave mirror is connected with the lens body in a sliding mode through the adjusting device.
Preferably, the outer screw rod surface is cup jointed in the slip track removal, internal thread pole and outer screw rod sliding connection, fixed pipe and lens body fixed connection.
Preferably, the adjusting device is fixedly connected with the concave mirror through glass cement.
Preferably, the number of the adjusting devices is set to be 4, and the adjusting devices are respectively distributed at the upper end, the lower end, the left end and the right end of the concave mirror.
Preferably, a convex mirror is arranged on one side of the lens body.
Preferably, the convex mirror is slidably connected to the lens body through an adjusting device.
The embodiment of the utility model provides a have following advantage:
the utility model discloses an use the utility model discloses the accessible is adjusted the concave mirror and is changed the focus, reduce light, reach the effect that increases imaging rate and light source acceptance rate with this, it can realize that concave mirror and lens body distance change to rotate the fixed regulation head in adjusting device one side, reach the effect of focusing with this, when needs adjust the concave mirror, need rotate 4 adjusting device, of course, also can make 4 adjusting device reach the effect of diversified regulation with this on the position of difference, with this throughput rate that increases the light source, it is different when the position of light source or power to have solved current, the image also can reduce imaging rate thereupon, or light intensity is by middle to both ends, both ends are to the problem of middle decay.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a structural view of a lens body provided by the present invention;
FIG. 2 is a diagram showing a positional relationship between the adjusting device and the lens body according to the present invention;
FIG. 3 is a structural diagram of the adjusting device provided by the present invention;
fig. 4 is a front view of a lens body provided by the present invention;
FIG. 5 is an effect diagram of the lens body provided by the present invention;
FIG. 6 is an effect diagram of the double-layer lens substrate provided by the present invention;
fig. 7 is a structural view of the lens body according to embodiment 2 of the present invention.
In the figure: the lens comprises a lens body 1, a double-layer lens base body 2, a concave mirror 3, an adjusting device 4, an adjusting head 5, a telescopic tube 6, a sliding track 7, an internal threaded rod 8, an external threaded rod 9, a fixed tube 10, a fixed plate 11, glass cement 12 and a convex mirror 13.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1:
referring to the attached drawings 1-6 in the specification, the aspheric diffractive optical lens of the embodiment comprises a lens body 1, wherein a double-layer lens base 2 is fixedly connected to one side of the lens body 1, a concave mirror 3 is arranged on one side of the lens body 1, and an adjusting device 4 is arranged on one side of the concave mirror 3;
adjusting device 4 one side fixed mounting adjusting head 5, adjusting head 5 one side fixed connection is flexible pipe 6, flexible pipe 6 inner wall is fixed and is seted up slip track 7, slip track 7 inner wall is equipped with external screw thread pole 8, the 8 inner walls of external screw thread pole are equipped with internal threaded rod 9, the fixed pipe 10 of internal threaded rod 9 one end fixed connection, adjusting device 4 bottom fixed connection fixed plate 11, fixed plate 11 inner wall fixed connection glass glues 12.
Furthermore, the concave mirror 3 is connected with the lens body 1 in a sliding mode through the adjusting device 4, when the light source and the lens body 1 are different from each other in a straight line, the focal length can be changed by adjusting the concave mirror 3, and therefore the effects of increasing the imaging rate and the light source receiving rate are achieved.
Furthermore, the sliding rail 7 is movably sleeved with the outer surface of an external threaded rod 8, the internal threaded rod 9 is slidably connected with the external threaded rod 8, the fixed tube 10 is fixedly connected with the lens body 1, when the adjusting head 5 is manually rotated, the external threaded rod 8 also rotates along with the external threaded rod, at the moment, the distance between the external threaded rod 8 and the internal threaded rod 9 is changed, so that the distance between the concave mirror 3 fixed by the fixed plate 11 and the lens body 1 fixed by the fixed tube 10 is changed, and the focusing effect is achieved.
Furthermore, the adjusting device 4 is fixedly connected with the concave mirror 3 through the glass cement 12, and when the concave mirror 3 needs to be adjusted, the adjusting head 5 fixed on one side of the adjusting device 4 is rotated to realize the adjusting function. When no adjustment is required, the glass cement 12 serves to fix the adjustment means 4 to the concave mirror 3.
Further, adjusting device 4's quantity sets up to 4, distributes respectively in concave mirror 3 about the upper and lower end, when concave mirror 3 needs to be adjusted, needs rotate 4 adjusting device 4, of course, also can make 4 adjusting device 4 reach diversified effect of adjusting with this in different positions to this increases the throughput of light source.
The implementation scenario is specifically as follows: when the utility model is used, when the light source and the lens body 1 are not in the same straight line or are comparatively dispersed, the focal length can be changed by adjusting the concave mirror 3, the light is reduced, thereby the effect of increasing the imaging rate and the light source receiving rate is achieved, when the concave mirror 3 needs to be adjusted, the adjusting function can be achieved by rotating the adjusting head 5 fixed on one side of the adjusting device 4, when the adjustment is not needed, the glass cement 12 plays the role of fixing the adjusting device 4 and the concave mirror 3, when the adjusting head 5 is manually rotated, the external screw thread rod 8 can also rotate along with the adjusting head, at the moment, the distance between the external screw thread rod 8 and the internal screw thread rod 9 is changed, the distance between the concave mirror 3 fixed by the fixing plate 11 and the lens body 1 fixed by the fixing tube 10 is changed, thereby the focusing effect is achieved, when the concave mirror 3 needs to be adjusted, 4 adjusting devices 4 are needed to be rotated, of course, 4 adjusting devices 4 can also be adjusted on different positions, thereby, therefore, the passing rate of the light source is increased, and the problems that the imaging rate of an image is reduced or the light intensity is attenuated from the middle to two ends or from two ends to the middle when the positions or the intensities of the light sources are different in the prior art are solved.
Example 2:
referring to the attached fig. 7 of the specification, unlike embodiment 1: the method comprises the following steps: the lens comprises a lens body 1, a convex mirror 13 and an adjusting device 4, wherein the convex mirror 13 is arranged on one side of the lens body 1;
furthermore, the convex mirror 13 is slidably connected to the lens body 1 through the adjusting device 4, and the concave mirror 3 can be adjusted to change the focal length and enlarge the light source, so that the light source can be uniformly irradiated on the lens body 1.
The implementation scenario is specifically as follows: use the utility model discloses time shine lens body 1 when the light source of relatively concentrating makes accessible adjust concave mirror 3 and change the focus, and the enlarged light source makes the light source evenly shine to this effect that reaches increase imaging rate and light source acceptance rate has solved current position or the difference in strength when the light source, and the image also can reduce imaging rate thereupon, or by middle problem to both ends, both ends to middle decay.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (7)
1. An aspherical diffractive optical lens comprising a lens body (1), characterized in that: one side of the lens body (1) is fixedly connected with a double-layer lens base body (2), one side of the lens body (1) is provided with a concave mirror (3), and one side of the concave mirror (3) is provided with an adjusting device (4);
adjusting device (4) one side fixed mounting adjusting head (5), adjusting head (5) one side fixed connection is flexible pipe (6), slip track (7) is seted up to flexible pipe (6) inner wall is fixed, slip track (7) inner wall is equipped with external screw rod (8), external screw rod (8) inner wall is equipped with internal thread pole (9), the fixed pipe of internal thread pole (9) one end fixed connection (10), adjusting device (4) bottom fixed connection fixed plate (11), fixed plate (11) inner wall fixed connection glass glues (12).
2. An aspherical diffractive optical lens according to claim 1, wherein: the concave mirror (3) is connected with the lens body (1) in a sliding mode through the adjusting device (4).
3. An aspherical diffractive optical lens according to claim 1, wherein: the outer threaded rod (8) surface is cup jointed in slip track (7) removal, internal thread pole (9) and outer threaded rod (8) sliding connection, fixed pipe (10) and lens body (1) fixed connection.
4. An aspherical diffractive optical lens according to claim 1, wherein: the adjusting device (4) is fixedly connected with the concave mirror (3) through glass cement (12).
5. An aspherical diffractive optical lens according to claim 1, wherein: the number of the adjusting devices (4) is set to be 4, and the adjusting devices are respectively distributed at the upper, lower, left and right ends of the concave mirror (3).
6. An aspherical diffractive optical lens according to claim 1, wherein: a convex mirror (13) is arranged on one side of the lens body (1).
7. An aspheric diffractive optical lens according to claim 6, characterized in that: the convex mirror (13) is connected with the lens body (1) in a sliding manner through the adjusting device (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021087859.8U CN211979244U (en) | 2020-06-14 | 2020-06-14 | Aspheric diffraction optical lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021087859.8U CN211979244U (en) | 2020-06-14 | 2020-06-14 | Aspheric diffraction optical lens |
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| Publication Number | Publication Date |
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| CN211979244U true CN211979244U (en) | 2020-11-20 |
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| CN202021087859.8U Active CN211979244U (en) | 2020-06-14 | 2020-06-14 | Aspheric diffraction optical lens |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114994926A (en) * | 2022-07-18 | 2022-09-02 | 京东方艺云(杭州)科技有限公司 | Display adjusting device and display system |
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2020
- 2020-06-14 CN CN202021087859.8U patent/CN211979244U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114994926A (en) * | 2022-07-18 | 2022-09-02 | 京东方艺云(杭州)科技有限公司 | Display adjusting device and display system |
| CN114994926B (en) * | 2022-07-18 | 2022-11-22 | 京东方艺云(杭州)科技有限公司 | Display adjusting device and display system |
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