CN210035370U - Combined optical lens with multiple focal lengths - Google Patents
Combined optical lens with multiple focal lengths Download PDFInfo
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- CN210035370U CN210035370U CN201920876170.4U CN201920876170U CN210035370U CN 210035370 U CN210035370 U CN 210035370U CN 201920876170 U CN201920876170 U CN 201920876170U CN 210035370 U CN210035370 U CN 210035370U
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Abstract
The utility model relates to the field of optical elements, in particular to a combined optical lens with multiple focal lengths, which comprises a light-emitting surface and an incident surface, wherein the light-emitting surface comprises at least two light-emitting surface domains, and the corresponding focus of each light-emitting surface domain is positioned on the same optical axis; the light emitting surface areas are spliced into a complete light emitting surface; the combined optical lens is formed by fusing light emitting surface areas with various different focal lengths into a whole, the light emitting surface of the combined optical lens is of a complete aspheric-like structure, and an incident surface is fused into a plane surface area; the light rays are overlapped or separated to irradiate a set area after passing through the combined optical lens, the light emergent surface and the incident surface of the combined optical lens are of an integral structure and have no splicing gap, the light rays cannot be blurred in the illuminating edge during overlapping, the phenomena of serious interference and loss cannot occur between the light rays in different light emergent surface areas, and the utilization rate and the illuminating effect of the light rays are greatly improved.
Description
Technical Field
The utility model relates to an optical element field, especially a combination formula optical lens with multiple focus.
Background
Lenses are essential and indispensable optical elements in optical systems, and they play a very critical and important role in lighting devices. The quality and function of the illumination device are directly related to the quality and structure of the lens used in the illumination device, so how to manufacture a lens with better quality and function more meeting the requirement of the illumination device becomes an important issue in manufacturing the optical system.
Most of convex lenses adopted in the existing lighting device only have one focal length, and when light irradiates the light entrance surface of the convex lens, all the light is focused to a specific lighting area; however, in some special lighting devices, it is often necessary to realize fast switching of the lighting areas, and in order to realize this function, a plurality of sets of lighting devices are provided at the same time in the prior art, each set of lighting devices is provided with a light source and a lens with a specific single focal length, when switching between the illumination areas is performed, actually, switching between each group of illumination devices is performed, and although the technical scheme can realize the switching operation of the illumination areas, but one lighting device is provided with a plurality of groups of lighting devices which comprise a plurality of lighting sources, a lamp bracket and a convex lens with a special single focal length, thereby greatly increasing the production cost of the lighting device, increasing the structural complexity and the whole size of the interior of the lighting device, in the installation and application process of the lighting device, the application scene is required to provide a larger installation space for the lighting device, and the application range of the lighting device is greatly limited due to the production cost and the requirement of the installation space.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned drawbacks, an object of the present invention is to provide a combined optical lens with multiple focal lengths.
To achieve the purpose, the utility model adopts the following technical proposal:
a combined optical lens with multiple focal lengths comprises a light-emitting surface and an incident surface, wherein the light-emitting surface comprises at least two light-emitting surface areas, and the corresponding focal points of the light-emitting surface areas are positioned on the same optical axis; the light emitting surface domains are spliced into a complete light emitting surface, the splicing part between each light emitting surface domain and the adjacent light emitting surface domain is integrally formed and completely fused, and the light emitting surface at the splicing part is of a smooth transition surface structure; the light emitting surface is of an integrally formed aspheric surface-like structure, and the incident surface is of a plane structure.
Preferably, the light emitting surface comprises a first light emitting surface area, a second light emitting surface area and a third light emitting surface area, the first light emitting surface area and the second light emitting surface area are spliced to form a half area of the light emitting surface, and the third light emitting surface area is the other half area; the focus corresponding to the first light-emitting surface area is a first focus, the focus corresponding to the second light-emitting surface area is a second focus, and the focus corresponding to the third light-emitting surface area is a third focus; the first focus, the second focus and the third focus are on the same optical axis, and the first focus and the second focus are coincident.
Preferably, the light-emitting surface comprises a first light-emitting surface area, a second light-emitting surface area, a third light-emitting surface area and a fourth light-emitting surface area, the first light-emitting surface area and the second light-emitting surface area are spliced to form a half area of the light-emitting surface, and the third light-emitting surface area and the fourth light-emitting surface area are spliced to form the other half area of the light-emitting surface; a focus corresponding to the first light emitting surface area is a first focus, a focus corresponding to the second light emitting surface area is a second focus, a focus corresponding to the third light emitting surface area is a third focus, and a focus corresponding to the fourth light emitting surface area is a fourth focus; the first focus, the second focus, the third focus and the fourth focus are positioned on the same optical axis, the first focus and the second focus are coincided, and the third focus and the fourth focus are coincided.
Preferably, the combined optical lens is made of plastic, PMMA, glass, optical silica gel and/or PC.
More preferably, the distance between the respective focal points is 1mm to 50 mm.
The utility model provides a combined optical lens with various focal lengths, which is formed by fusing light emitting surface areas with various different focal lengths into a whole, wherein the light emitting surface of the combined optical lens is of a complete sphere-like structure, and an incident surface is fused into a complete plane surface area; different light projects to the focus of corresponding position on the back, can be in through overlap or separation shine and set for the region behind the combination formula optical lens, make used combination formula optical lens's lighting device has different illumination area switching function simultaneously, also can guarantee lighting device's structure simple compacter, in addition, because combination formula optical lens's play plain noodles and incident surface are overall structure, do not have the concatenation gap, and light can not appear because multiple reflection when the stack the illumination edge fuzzy, can not appear disturbing and lose serious phenomenon between the light in the different play plain noodles regions, has improved the utilization ratio and the illuminating effect of light greatly.
Drawings
FIG. 1 is a schematic view of light passing through the combined optical lens according to one embodiment of the present invention;
FIG. 2 is a schematic view of another perspective of the embodiment of FIG. 1;
fig. 3 is a schematic structural view of an embodiment of the present invention viewed from the light emitting surface;
fig. 4 is a schematic structural diagram of another embodiment of the present invention viewed from the light emitting surface.
Wherein: the combined optical lens 10, the light-emitting surface 11, the incident surface 12, the first light-emitting surface area 121, the second light-emitting surface area 122, the third light-emitting surface area 123, the fourth light-emitting surface area 124, the first focus 110, the second focus 120, and the third focus 130.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1 to 4, a combined optical lens 10 with multiple focal lengths includes a light emitting surface 11 and an incident surface 12, where the light emitting surface 11 includes at least two light emitting surface areas, and a focal point corresponding to each light emitting surface area is on the same optical axis; the light emitting surface domains are spliced into the complete light emitting surface 11, the splicing position between each light emitting surface domain and the adjacent light emitting surface domain is the position shown by the dotted line in fig. 3 and 4, the splicing position is integrally formed, if the light emitting surfaces 11 are completely fused into a whole, the light emitting surface 11 at the splicing position is in a smooth transition surface structure; the light emitting surface 11 is an integrally formed aspheric surface-like structure, specifically, a smooth and complete curved surface, the incident surface 12 is a planar structure, and the combined optical lens is integrally of a plano-convex lens type structure.
As shown in fig. 2, specifically, the projection profile of the light emitting surface 11 in the direction perpendicular to the optical axis is a circle, and includes a first light emitting surface area 121, a second light emitting surface area 122 and a third light emitting surface area 123, where the first light emitting surface area 121 and the second light emitting surface area 122 are spliced to form a half area of the light emitting surface 11, and the third light emitting surface area 123 is the other half area, and is spliced with the first light emitting surface area 121 and the second light emitting surface area 122 to form the light emitting surface 11; a focus corresponding to the first light-emitting surface area 121 is a first focus 110, a focus corresponding to the second light-emitting surface area 122 is a second focus 120, and a focus corresponding to the third light-emitting surface area 123 is a third focus 130; the first focal point 110, the second focal point 120 and the third focal point 130 are on the same optical axis, and the first focal point 110 and the second focal point 120 coincide.
When the light emitting surface 11 of the combined optical lens 10 is composed of three light emitting surface areas, the first light emitting surface area 121 and the second light emitting surface area 122 are located on one side of the upper semicircle of the combined optical lens 10, and the focal points are overlapped, so that the light rays projected from the first focal point 110 and the second focal point 120 to the incident surface 12 can be overlapped, the illumination brightness of a designated illumination area is improved, and the brightness of the illumination area can be adjusted; the third light-emitting surface area 123 is located on one side of the lower semicircle of the combined optical lens 10, and the focal point of the third light-emitting surface area may or may not coincide with the two focal points; when the three light-emitting surface areas coincide with the two focuses, the light rays of the three light-emitting surface areas can be superposed according to the requirement, so that the adjustment of more grades of brightness in the illumination area is realized; when the light source is not coincident with the two focuses, the illumination area of the light of the third light-emitting surface area is different from the illumination area of the light of the two light-emitting surface areas, so that the effects of switching the illumination areas and adjusting the brightness can be achieved.
As shown in fig. 4, specifically, a projection profile of the light emitting surface 11 in a direction perpendicular to the optical axis is a circle, and the projection profile includes a first light emitting surface area 121, a second light emitting surface area 122, a third light emitting surface area 123 and a fourth light emitting surface area 124, where the first light emitting surface area 121 and the second light emitting surface area 122 are spliced to form a half area of the light emitting surface 11, and the third light emitting surface area 123 and the fourth light emitting surface area 124 are spliced to form another half area of the light emitting surface 11; a focus corresponding to the first light-emitting surface area 121 is a first focus 110, a focus corresponding to the second light-emitting surface area 122 is a second focus 120, a focus corresponding to the third light-emitting surface area 123 is a third focus 130, and a focus corresponding to the fourth light-emitting surface area 124 is a fourth focus; the first focal point 110, the second focal point 120, the third focal point 130 and the fourth focal point are on the same optical axis, and the first focal point 110 and the second focal point 120 coincide, and the third focal point 130 and the fourth focal point coincide.
When the light-emitting surface 11 of the combined optical lens 10 is composed of four light-emitting surface areas, the first light-emitting surface area 121 and the second light-emitting surface area 122 are located on one side of the upper semicircle of the combined optical lens 10, and the focal points are overlapped, so that the light rays projected from the first focal point 110 and the second focal point 120 to the light-emitting surface 11 can be overlapped, the illumination brightness of a designated illumination area can be improved, and the brightness of the illumination area can be adjusted; the third light-emitting surface area 123 and the fourth light-emitting surface area 124 are located on one side of the lower semicircle of the combined optical lens 10, and the focal point of the third light-emitting surface area and the focal point of the fourth light-emitting surface area may or may not coincide with each other; when the light emitting surface area is superposed with the two focuses, the light rays of the four light emitting surface areas can be superposed according to the requirement, so that the adjustment of more grades of brightness in the illumination area is realized; when the two focuses do not coincide with the two focuses, the illumination areas of the light rays of the third light-emitting surface area 123 and the fourth light-emitting surface area 124 are different from the illumination areas of the light rays of the two light-emitting surface areas, so that the effects of illumination area switching and brightness adjustment can be achieved.
The combined optical lens 10 with multiple focal lengths is made of plastic, PMMA, glass, optical silica gel and/or PC. Since the combined optical lens 10 is required to be integrally formed and has a high requirement on the integrity, it is made of only one material, and although the above basic effect requirement can be met, the thickness and uniformity of the incident surface 12 are relatively low; therefore, in order to further improve the obvious switching between the illumination area and the illumination brightness, a more preferable mode is to use a plurality of different materials to respectively manufacture each light-emitting surface area, and then to fuse each light-emitting surface area into a whole, because the refraction effects of the materials on the light are not different, the thickness of the whole incident surface 12 and the whole light-emitting surface 11 of the combined optical lens 10 can be ensured to be uniform while the different light-emitting surface areas have different refraction effects.
The distance between the focal points is 1mm-50 mm. Because the light emitting surface 11 and the incident surface 12 of the combined optical lens 10 are in smooth transition as a whole, that is, even though the thicknesses of the light emitting surface regions are different, the thicknesses are not particularly obvious, the focal positions of the combined optical lens 10 are more concentrated, and the distances between the corresponding focuses of the light rays in different illumination regions are closer; the embodiment provides an optimal numerical range of distances between different focuses, which can ensure a more compact structure of the lighting device and does not affect the practical application effect of the combined optical lens 10.
The utility model provides a combined optical lens 10 with multiple focal lengths, which is formed by fusing light emitting surface areas with multiple different focal lengths into a whole, wherein the light emitting surface 11 of the combined optical lens 10 is of a complete sphere-like structure, and the incident surface 12 is also fused into a complete plane area; different light projects to the focus of corresponding position back, can be in process overlap behind the combination formula optical lens 10 or the separation shines and sets for the region, makes to have used the lighting device of combination formula optical lens 10 has different illumination area switching function simultaneously, also can guarantee that lighting device's structure is simple compact more, in addition, because the play plain noodles 11 and the incident surface 12 of combination formula optical lens 10 are overall structure, do not have the concatenation gap, and light can not appear because the multiple reflection when the stack that the edge of illumination is fuzzy, can not appear disturbing and lose serious phenomenon between the light in the different play plain noodles, has improved the utilization ratio and the illuminating effect of light greatly.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (5)
1. A combined optical lens with multiple focal lengths comprises a light-emitting surface and an incident surface, and is characterized in that: the light emitting surface comprises at least two light emitting surface areas, and the corresponding focuses of the light emitting surface areas are positioned on the same optical axis; the light emitting surface domains are spliced into a complete light emitting surface, the splicing part between each light emitting surface domain and the adjacent light emitting surface domain is integrally formed and completely fused, and the light emitting surface at the splicing part is of a smooth transition surface structure; the light emitting surface is of an integrally formed aspheric surface-like structure, and the incident surface is of a plane structure.
2. The combined optical lens with multiple focal lengths as claimed in claim 1, wherein the light-emitting surface includes a first light-emitting surface region, a second light-emitting surface region and a third light-emitting surface region, the first light-emitting surface region and the second light-emitting surface region are spliced to form a half of the light-emitting surface, and the third light-emitting surface region is the other half of the light-emitting surface; the focus corresponding to the first light-emitting surface area is a first focus, the focus corresponding to the second light-emitting surface area is a second focus, and the focus corresponding to the third light-emitting surface area is a third focus; the first focus, the second focus and the third focus are on the same optical axis, and the first focus and the second focus are coincident.
3. The combined optical lens with multiple focal lengths as claimed in claim 1, wherein the light-emitting surface includes a first light-emitting surface region, a second light-emitting surface region, a third light-emitting surface region and a fourth light-emitting surface region, the first light-emitting surface region and the second light-emitting surface region are spliced to form a half of the light-emitting surface, and the third light-emitting surface region and the fourth light-emitting surface region are spliced to form a half of the light-emitting surface; a focus corresponding to the first light emitting surface area is a first focus, a focus corresponding to the second light emitting surface area is a second focus, a focus corresponding to the third light emitting surface area is a third focus, and a focus corresponding to the fourth light emitting surface area is a fourth focus; the first focus, the second focus, the third focus and the fourth focus are positioned on the same optical axis, the first focus and the second focus are coincided, and the third focus and the fourth focus are coincided.
4. A combined optical lens with multiple focal lengths according to any of claims 1-3, characterized in that it is made of plastic, PMMA, glass, optical silica gel and/or PC.
5. A combined optical lens with multiple focal lengths as claimed in claim 3, wherein the distance between each of the first, second, third and fourth focal points is 1mm to 50 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920876170.4U CN210035370U (en) | 2019-06-12 | 2019-06-12 | Combined optical lens with multiple focal lengths |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920876170.4U CN210035370U (en) | 2019-06-12 | 2019-06-12 | Combined optical lens with multiple focal lengths |
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| CN210035370U true CN210035370U (en) | 2020-02-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160009A (en) * | 2019-06-12 | 2019-08-23 | 佛山市升阳光学科技有限公司 | A kind of combined type optical lens with a variety of focal lengths |
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- 2019-06-12 CN CN201920876170.4U patent/CN210035370U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160009A (en) * | 2019-06-12 | 2019-08-23 | 佛山市升阳光学科技有限公司 | A kind of combined type optical lens with a variety of focal lengths |
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