CN210442622U - High-brightness high-resolution long-distance automobile LOGO projection optical system - Google Patents
High-brightness high-resolution long-distance automobile LOGO projection optical system Download PDFInfo
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- CN210442622U CN210442622U CN201921360216.3U CN201921360216U CN210442622U CN 210442622 U CN210442622 U CN 210442622U CN 201921360216 U CN201921360216 U CN 201921360216U CN 210442622 U CN210442622 U CN 210442622U
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Abstract
A high-brightness high-resolution long-distance automobile LOGO projection optical system comprises a light source focusing part, a projection film, a first imaging optical part, a second imaging optical part and a third imaging optical part; the beneficial effects of the utility model reside in that: the surface types of the lenses of the focusing part of the first part of light sources are all non-standard spherical surface types, the non-standard spherical surface types can effectively focus light rays of the light sources in a large divergence angle range, the selection of the structure of the first part of light sources can reach more than 80% of the focusing energy of the light sources, the light source requirements of the high-brightness projection optical system are completely met, the illumination power of the conventional automobile logo projection light source is 86 lumens, and the utilization rate of the light sources of the focusing part of the optical system can reach more than 68.8 lumens.
Description
Technical Field
The utility model relates to an automobile LOGO projection optical system.
Background
The illuminance projected to the ground by the automobile logo projection optical system technology in the current technical research state is less than 30Lux, and the brightness is seriously insufficient.
When these imaging lenses form a real image of an object, there are other non-imaging light beams that are diffused on the image plane in addition to the imaging light beams in the optical system. It includes non-imaging light energy from sources external to the system (e.g., sunlight, ground gas light, etc.) and internal sources and scattering surfaces. For example, the reflection light from each refractive surface of the optical element, the structural member, and the like, the reflection light from the inner wall, the diffuse reflection of the lens itself, or the reflection of the lens barrel, and the like.
These problems generally arise due to large aberrations of the optical system, mismatch of the aperture, and the like.
Therefore, the image plane generates a bright background, and the image plane contrast and the modulation transfer function are reduced; the gradation of the whole picture is reduced, the contrast is reduced, and the definition is deteriorated.
In severe cases, stray light spots with different sizes can be formed, and even the optical system can be failed.
SUMMERY OF THE UTILITY MODEL
There is the not enough of resolution ratio low in order to overcome current car LOGO projection optical system, the utility model provides a car LOGO projection optical system of high resolution ratio.
The utility model provides a technical scheme of this technical problem is: a high-brightness high-resolution long-distance automobile LOGO projection optical system comprises a light source focusing part, a projection film, a first imaging optical part, a second imaging optical part and a third imaging optical part;
the light source focusing part comprises a biconvex lens; the projection film is a film with a LOGO printed in the middle; the first imaging optical part is composed of two concave-convex lenses with opposite convex surfaces, the second imaging optical part is an achromatic lens formed by gluing a biconvex lens and a biconcave lens, and the third imaging optical part is composed of a spherical plano lens and a plano-convex lens.
The focal length of light source focus part is less than the distance of light source focus part and LOGO film.
The radius of the front mirror surface of the concave-convex lens with two opposite convex surfaces of the first imaging optical part is large, and the radius of the rear mirror surface of the concave-convex lens is small.
The light source focusing part is selected to be an nonstandard spherical surface.
The imaging distance of the third imaging optical part is 1.2-1.4 m.
A focal length selection, the first imaging optic having an optical power in the range of 9.5-11.5 mm.
A focal length selection, the second imaging optic having an optical power in the range of 90.0-100.0 mm.
A focal length, the third imaging optic having an optical power in the range of 31.0-35.0.
The size of an imaging part formed by the third imaging optical part is 1.3-2 micrometers.
The utility model discloses when using: compare with prior art's car LOGO projection optical system, this patent has the projection imaging clear
The beneficial effects of the utility model reside in that: 1. the surface types of the lenses of the focusing part of the first part of light sources are all non-standard spherical surface types, the non-standard spherical surface types can effectively focus light rays of the light sources in a large divergence angle range, the selection of the structure of the first part of light sources can reach more than 80% of the focusing energy of the light sources, the light source requirements of the high-brightness projection optical system are completely met, the illumination power of the conventional automobile logo projection light source is 86 lumens, and the utilization rate of the light sources of the focusing part of the optical system can reach more than 68.8 lumens. 2. The first part of the imaging optical system has positive focal power, and the part can effectively eliminate the negative spherical aberration of the projection optical system, and the second part of the imaging optical system has negative focal power, and the part can effectively eliminate the positive spherical aberration of the projection optical system. 3. The focal power of the third part of the imaging optical system carries out positive compensation on the focal power of the first optical system and the second optical system, and mainly high resolution of the optical system is realized.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic diagram of the optical path of the present invention.
Fig. 3 is a schematic diagram of a first imaging optic of the present invention.
Fig. 4 is a schematic diagram of a second imaging optic of the present invention.
Fig. 5 is a schematic diagram of a third imaging optic of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
Example 1
With reference to fig. 1 to 5, a high-brightness high-resolution long-distance automobile LOGO projection optical system comprises a light source focusing part, a projection film, a first imaging optical part, a second imaging optical part and a third imaging optical part.
The light source focusing part comprises a biconvex lens; the projection film is a film with a LOGO printed in the middle; the first imaging optical part is composed of two concave-convex lenses with opposite convex surfaces, the second imaging optical part is an achromatic lens formed by gluing a biconvex lens and a biconcave lens, and the third imaging optical part is composed of a spherical plano lens and a plano-convex lens.
The focal length of light source focus part is less than the distance of light source focus part and LOGO film.
The radius of the front mirror surface of the concave-convex lens with two opposite convex surfaces of the first imaging optical part is large, and the radius of the rear mirror surface of the concave-convex lens is small.
The light source focusing part is selected to be an nonstandard spherical surface.
An imaging distance of the third imaging optical portion is at a position of 1.2 m.
A focal length selection, the first imaging optic having an optical power in the range of 9.5-11.5 mm.
A focal length selection, the second imaging optic having an optical power in the range of 90.0-100.0 mm.
A focal length, the third imaging optic having an optical power in the range of 31.0-35.0 mm.
This embodiment is used: compare with prior art's car LOGO projection optical system, this patent has the clear characteristics of projection imaging.
Example 2
With reference to fig. 1 to 5, a high-brightness high-resolution long-distance automobile LOGO projection optical system comprises a light source focusing part, a projection film, a first imaging optical part, a second imaging optical part and a third imaging optical part.
The light source focusing part comprises a biconvex lens; the projection film is a film with a LOGO printed in the middle; the first imaging optical part is composed of two concave-convex lenses with opposite convex surfaces, the second imaging optical part is an achromatic lens formed by gluing a biconvex lens and a biconcave lens, and the third imaging optical part is composed of a spherical plano lens and a plano-convex lens.
The focal length of light source focus part is less than the distance of light source focus part and LOGO film.
The radius of the front mirror surface of the concave-convex lens with two opposite convex surfaces of the first imaging optical part is large, and the radius of the rear mirror surface of the concave-convex lens is small.
The light source focusing part is selected to be an nonstandard spherical surface.
The difference from embodiment 1 is that the third imaging optical portion has an imaging distance at a position of 1.4 m. Thus, the imaging area is enlarged.
A focal length selection, the first imaging optic having an optical power in the range of 9.5-11.5 mm.
A focal length selection, the second imaging optic having an optical power in the range of 90.0-100.0 mm.
A focal length, the third imaging optic having an optical power in the range of 31.0-35.0 mm.
The size of an imaging part of the third imaging optical part is 2 microns.
This embodiment is used: compare with prior art's car LOGO projection optical system, this patent has the clear characteristics of projection imaging.
The beneficial effect of this embodiment lies in: the first part of the imaging optical system has positive focal power, and the part can effectively eliminate the negative spherical aberration of the projection optical system, and the second part of the imaging optical system has negative focal power, and the part can effectively eliminate the positive spherical aberration of the projection optical system.
Example 3
With reference to fig. 1 to 5, a high-brightness high-resolution long-distance automobile LOGO projection optical system comprises a light source focusing part, a projection film, a first imaging optical part, a second imaging optical part and a third imaging optical part.
The light source focusing part comprises a biconvex lens; the projection film is a film with a LOGO printed in the middle; the first imaging optical part is composed of two concave-convex lenses with opposite convex surfaces, the second imaging optical part is an achromatic lens formed by gluing a biconvex lens and a biconcave lens, and the third imaging optical part is composed of a spherical plano lens and a plano-convex lens.
The focal length of light source focus part is less than the distance of light source focus part and LOGO film.
The radius of the front mirror surface of the concave-convex lens with two opposite convex surfaces of the first imaging optical part is large, and the radius of the rear mirror surface of the concave-convex lens is small.
The light source focusing part is selected to be an nonstandard spherical surface.
An imaging distance of the third imaging optical portion is at a position of 1.3 m.
A focal length selection, the first imaging optic having an optical power in the range of 9.5-11.5 mm.
A focal length selection, the second imaging optic having an optical power in the range of 90.0-100.0 mm.
A focal length, the third imaging optic having an optical power in the range of 31.0-35.0 mm.
The size of an imaging part of the third imaging optical part is 1.7 microns.
This embodiment is used: compare with prior art's car LOGO projection optical system, this patent has the clear characteristics of projection imaging.
The beneficial effect of this embodiment lies in: 1. the surface types of the lenses of the focusing part of the first part of light sources are all non-standard spherical surface types, the non-standard spherical surface types can effectively focus light rays of the light sources in a large divergence angle range, the selection of the structure of the first part of light sources can reach more than 80% of the focusing energy of the light sources, the light source requirements of the high-brightness projection optical system are completely met, the illumination power of the conventional automobile logo projection light source is 86 lumens, and the utilization rate of the light sources of the focusing part of the optical system can reach more than 68.8 lumens. 2. The first part of the imaging optical system has positive focal power, and the part can effectively eliminate the negative spherical aberration of the projection optical system, and the second part of the imaging optical system has negative focal power, and the part can effectively eliminate the positive spherical aberration of the projection optical system. 3. The focal power of the third part of the imaging optical system carries out positive compensation on the focal power of the first optical system and the second optical system, and mainly high resolution of the optical system is realized.
Claims (10)
1. The utility model provides a big distance car LOGO projection optical system of high brightness high resolution which characterized in that: the device comprises a light source focusing part, a projection film, a first imaging optical part, a second imaging optical part and a third imaging optical part;
the light source focusing part comprises a biconvex lens; the projection film is a film with a LOGO printed in the middle; the first imaging optical part is composed of two concave-convex lenses with opposite convex surfaces, the second imaging optical part is an achromatic lens formed by gluing a biconvex lens and a biconcave lens, and the third imaging optical part is composed of a spherical plano lens and a plano-convex lens.
2. The high brightness high resolution large distance automobile LOGO projection optical system as claimed in claim 1 wherein: the focal length of light source focus part is less than the distance of light source focus part and LOGO film.
3. The high brightness high resolution large distance automobile LOGO projection optical system as claimed in claim 1 wherein: the radius of the front mirror surface of the concave-convex lens with two opposite convex surfaces of the first imaging optical part is large, and the radius of the rear mirror surface of the concave-convex lens is small.
4. The high brightness high resolution large distance automobile LOGO projection optical system as claimed in claim 1 wherein: the light source focusing part is selected to be an nonstandard spherical surface.
5. The high brightness high resolution large distance automobile LOGO projection optical system as claimed in claim 1 wherein: the imaging distance of the third imaging optical part is 1.2-1.4 m.
6. The high brightness high resolution large distance automobile LOGO projection optical system as claimed in claim 1 wherein: the focal power of the first imaging optical part is in the range of 9.5-11.5 mm.
7. The high brightness high resolution large distance automobile LOGO projection optical system as claimed in claim 1 wherein: the focal power of the second imaging optical part is in the range of 90.0-100.0 mm.
8. The high brightness high resolution large distance automobile LOGO projection optical system as claimed in claim 1 wherein: the focal power of the third imaging optical part is within the range of 31.0-35.0 mm.
9. The high brightness high resolution large distance automobile LOGO projection optical system as claimed in claim 1 wherein: the size of an imaging part formed by the third imaging optical part is 1.3-2 micrometers.
10. The high brightness high resolution large distance automobile LOGO projection optical system as claimed in claim 1 wherein: the second imaging optical part is an achromatic lens formed by gluing a biconvex lens and a biconcave lens together.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921360216.3U CN210442622U (en) | 2019-08-21 | 2019-08-21 | High-brightness high-resolution long-distance automobile LOGO projection optical system |
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| CN201921360216.3U CN210442622U (en) | 2019-08-21 | 2019-08-21 | High-brightness high-resolution long-distance automobile LOGO projection optical system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110471243A (en) * | 2019-08-21 | 2019-11-19 | 宁波锦辉光学科技有限公司 | A kind of high brightness and resolution is big apart from automobile LOGO projection optical system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110471243A (en) * | 2019-08-21 | 2019-11-19 | 宁波锦辉光学科技有限公司 | A kind of high brightness and resolution is big apart from automobile LOGO projection optical system |
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