CN212933212U - Projection device, vehicle and electronic product - Google Patents
Projection device, vehicle and electronic product Download PDFInfo
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- CN212933212U CN212933212U CN202021666238.5U CN202021666238U CN212933212U CN 212933212 U CN212933212 U CN 212933212U CN 202021666238 U CN202021666238 U CN 202021666238U CN 212933212 U CN212933212 U CN 212933212U
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Abstract
The utility model discloses a projection arrangement, include: the light source, the pattern layer, the collimating optical assembly and the micro-lens layer, wherein the pattern layer comprises a plurality of micro-pattern units which are arranged in an array, and the micro-pattern units are provided with patterns; the collimating optical component is positioned between the luminous source and the pattern layer and is used for enabling light rays emitted by the luminous source to vertically enter the pattern layer; the micro-lens layer is located on one side, away from the collimating optical assembly, of the pattern layer and comprises a plurality of micro-lens units which are arranged in an array mode, the micro-lens units correspond to the micro-pattern units one to one, each micro-lens unit is used for receiving light emitted from the corresponding micro-pattern unit and projecting imaging sub-patterns corresponding to the patterns on the micro-pattern units respectively, the imaging sub-patterns are superposed to form a final imaging pattern, and therefore the size of the projection device is reduced.
Description
Technical Field
The utility model relates to a projection technology field especially relates to a projection arrangement, vehicle and electronic product.
Background
Projection technology is widely used in the fields of image display, greeting illumination, stage illumination and the like.
The projection device in the related art specifically comprises a light emitting source, a film with customized patterns and a projection lens, wherein the projection lens comprises a plurality of lenses which are sequentially arranged along the light emergent direction, and the projection lens is used for magnifying and projecting the pattern image of the film to the front.
However, the projection lens occupies a large space due to the large size of the lens, which results in a large overall size of the projection lens and a large volume of the projection device.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a projection arrangement, vehicle and electronic product can effectively reduce projection arrangement's volume on the basis of guaranteeing the formation of image effect.
In a first aspect, an embodiment of the present invention discloses a projection apparatus, which includes a light source, a pattern layer, a collimating optical assembly and a microlens layer, wherein the pattern layer includes a plurality of micropattern units arranged in an array, the micropattern units have a pattern thereon, the collimating optical assembly is located between the light source and the pattern layer, the collimating optical assembly is configured to enable light emitted by the light source to be incident perpendicularly to the pattern layer, the microlens layer is located on a side of the pattern layer away from the collimating optical assembly, the microlens layer includes a plurality of microlens units arranged in an array, each microlens unit corresponds to each of the micropattern units one by one, each microlens unit is respectively configured to receive light emitted from the corresponding micropattern unit and respectively project an imaging sub-pattern corresponding to the pattern on the micropattern unit, and the imaging sub-patterns are superposed to form a final imaging pattern.
Adopt a plurality of microlens layers that are the formation of array arrangement's microlens unit as projection lens, and set up the pattern layer into including a plurality of micropatterns units that are array arrangement to on the basis of guaranteeing the imaging effect, projection arrangement's volume has effectively been dwindled.
As an optional implementation manner, in an embodiment of the present invention, the projection apparatus further includes a transparent substrate layer, the pattern layer is disposed on a surface of the transparent substrate layer facing the light source, and the microlens layer is disposed on a surface of the transparent substrate facing away from the light source.
This embodiment is through setting up pattern layer and microlens layer respectively on two faces that the transparent substrate layer carried on the back mutually, because transparent substrate layer is transparent material, consequently can not cause the influence to the outgoing of light, sets up the precision that the micro pattern unit that has further improved the pattern layer and the microlens unit on microlens layer correspond like this, has guaranteed imaging quality.
As an optional implementation manner, in the embodiment of the present invention, the plurality of microlens units includes at least one first microlens unit and at least one second microlens unit;
the first micro-lens unit is used for projecting and forming a first imaging sub-pattern, and the first imaging sub-pattern is a reference imaging sub-pattern;
the second micro-lens unit is used for projecting and forming a second imaging sub-pattern, and the projecting position of the second imaging sub-pattern is shifted to be coincided with the projecting position of the reference imaging sub-pattern.
In the embodiment, the first imaging sub-pattern is formed by the first micro-lens unit, and the first imaging sub-pattern is used as the reference imaging sub-pattern, and the projection position of the second imaging sub-pattern formed by the second lens unit is shifted to coincide with the projection position of the reference imaging sub-pattern, so that the reference imaging sub-pattern and the second imaging sub-pattern are superposed to form the imaging pattern, and the imaging quality is ensured.
As an optional implementation manner, in the embodiment of the present invention, the first microlens unit is a circular symmetric structure, and the second microlens unit is a non-circular symmetric structure.
The first microlens unit of the embodiment adopts a circularly symmetric structure, so that the projection position of the first imaging sub-pattern is opposite to the first microlens unit, and the projection position of the finally formed imaging pattern is determined.
As an optional implementation manner, in the embodiment of the present invention, the shapes and sizes of the patterns on each of the micropattern units are the same, so that the shapes and sizes of the plurality of imaging sub-patterns are the same, thereby ensuring that the imaging patterns formed by overlapping are clear, and improving the imaging quality.
As an optional implementation manner, in the embodiment of the present invention, the curvature radius of each microlens unit is the same, so as to ensure that when a plurality of imaging sub-patterns are superimposed at the projection position, the sizes of the plurality of imaging sub-patterns are the same, the imaging patterns formed by superimposing are clear, and the imaging quality is improved.
As an optional implementation manner, in the embodiment of the present invention, the collimating optical assembly includes one of a collimating lens, a double-layer microlens array, a single-pass microlens array, a fresnel lens, and an LED light projecting lens.
The embodiment provides a plurality of optional collimating optical components, so that the projection device can be selected and matched according to actual needs, and different use requirements are met.
As an optional implementation manner, in an embodiment of the present invention, the micropattern unit includes a light-transmitting region and a light-shielding region disposed around the light-transmitting region, and the light-transmitting region is formed with the pattern.
In the embodiment, the light shielding area shields part of light emitted from the collimating optical assembly, part of the light transmitted by the light transmitting area can form an imaging sub-pattern corresponding to the pattern, and the pattern formed by the light transmitting area can be set according to the requirements of users.
In a second aspect, an embodiment of the present invention discloses a vehicle, which includes a main body and the projection device of the first aspect, wherein the projection device is disposed on the main body. It will be appreciated that the vehicle has the benefits of the projection apparatus of the first aspect described above.
In a third aspect, an embodiment of the present invention discloses an electronic product having the projection apparatus of the first aspect. It can be understood that the electronic product has the beneficial effects of the projection device according to the first aspect.
The embodiment of the utility model provides a projection device, a vehicle and an electronic product, by arranging a pattern layer to comprise a plurality of micro-pattern units arranged in an array, the micro-pattern units are provided with patterns, meanwhile, a microlens layer is arranged on one side of the pattern layer, which is far away from the collimating optical component, the microlens layer is arranged to comprise a plurality of microlens units which are arranged in an array manner, and each microlens unit corresponds to each micropattern unit one by one, so that the micro lens unit projects the pattern of the micro pattern unit to form an imaging sub-pattern, the plurality of imaging sub-patterns are superposed to form a final imaging pattern, a micro lens layer formed by a plurality of micro lens units arranged in an array is used as a projection lens, and set up the pattern layer to include a plurality of micropattern units that are the array and arrange to on the basis of guaranteeing the formation of image effect, effectively reduced projection arrangement's volume.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a projection apparatus according to a first embodiment of the present invention;
fig. 2 is a schematic structural view illustrating a plurality of micro pattern units arranged in a matrix array according to a first embodiment of the present invention;
fig. 3 is a schematic structural view illustrating a plurality of micropattern units arranged in a hexagonal array according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a collimating optical assembly according to an embodiment of the present invention, which is a double-layer microlens array;
fig. 5 is a schematic structural diagram of a collimating optical assembly according to an embodiment of the present invention, which is a single-layer microlens array;
fig. 6 is a schematic structural diagram of a collimating optical assembly according to a first embodiment of the present invention, which is a fresnel lens;
fig. 7 is a schematic structural diagram of a first microlens unit according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a second microlens unit according to an embodiment of the present invention;
fig. 9 is a schematic structural view of a vehicle according to an embodiment of the present invention
Fig. 10 is a schematic structural diagram of an electronic product according to a third embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, components or elements to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in communication between two devices, components or parts. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Furthermore, the terms "first," "second," "third," "fourth," and the like are used primarily for distinguishing between different devices, components, or elements (the specific type and configuration may be the same or different), and are not intended to indicate or imply the relative importance or number of the indicated devices, components, or elements. "plurality" means two or more unless otherwise specified.
The utility model discloses a projection arrangement, vehicle and electronic product can effectively reduce projection arrangement's volume on the basis of guaranteeing the formation of image effect.
Example one
Referring to fig. 1 and fig. 2, a schematic structural diagram of a projection apparatus 100 is disclosed for this embodiment, the projection apparatus 100 includes a light source 10, a pattern layer 11, a collimating optical assembly 12, and a microlens layer 13, the pattern layer 11 includes a plurality of micropattern units 111 arranged in an array, the micropattern units 111 have patterns thereon, the collimating optical assembly 12 is located between the light source 10 and the pattern layer 11, the collimating optical assembly 12 is configured to enable light emitted from the light source 10 to vertically enter the pattern layer 11, the microlens layer 13 is located on a side of the pattern layer 11 away from the collimating optical assembly 12, the microlens layer 13 includes a plurality of microlens units 131 arranged in an array, each microlens unit 131 corresponds to each micropattern unit 111 one by one, each microlens unit 131 is configured to receive light emitted from a corresponding micropattern unit 111 and project an imaging sub-pattern a corresponding to the pattern on the micropattern unit 111, and the imaging sub-patterns a are superposed to form the final imaging pattern a.
The dotted lines with arrows shown in the drawings of the present embodiment indicate the light emitted from the light emission source 10.
Illustratively, the Light-Emitting source 10 may be an LED lamp (Light-Emitting Diode Light). In some other embodiments, the light source 10 may also be a semiconductor laser lamp, which is not limited in this embodiment.
In this embodiment, the light emitted from the light source 10 is vertically incident to the pattern layer 11 through the collimating optical assembly 12, the patterns of the plurality of micro pattern units 111 of the pattern layer 11 can emit a plurality of groups of light, the plurality of groups of light are refracted by the corresponding micro lens units 131 on the micro lens layer 13 to form the imaging sub-patterns a corresponding to the patterns on the micro pattern units 111, and the imaging sub-patterns a are superposed to form the final imaging pattern a, so that the volume of the projection apparatus 100 is effectively reduced on the basis of ensuring the imaging effect.
In some embodiments, the projection device 100 further includes a transparent substrate layer 14, the pattern layer 11 is disposed on a side of the transparent substrate layer 14 facing the light-emitting source 10, and the microlens layer 13 is disposed on a side of the transparent substrate layer 14 facing away from the light-emitting source 10. Illustratively, the transparent substrate layer 14 may be a glass substrate, which is not particularly limited in this embodiment. Through setting up pattern layer 11 and microlens layer 13 respectively on two faces that the transparent substrate layer 14 carried on the back mutually, because transparent substrate layer 14 is transparent material, consequently can not the outgoing of light cause the influence, set up the precision that the micropattern unit 111 that has further improved pattern layer 11 and microlens unit 131 of microlens layer 13 correspond like this, guaranteed imaging quality.
In some embodiments, the micropattern unit 111 may include a light-transmissive region 11a and a light-blocking region 11b disposed around the light-transmissive region 11a, the light-transmissive region 11a being formed with a corresponding pattern. It can be understood that, when the light emitted from the collimating optical assembly 12 is incident on the micropattern layer 11, the micropattern unit 111 of the micropattern layer 11 selectively transmits the light, the light-blocking region 11b blocks or absorbs a portion of the light, and the light-transmitting region 11a can transmit a portion of the light and form an imaging sub-pattern a corresponding to the pattern through the microlens unit 131. That is, the pattern of the light-transmitting region 11a can be designed according to the actual usage of the projection apparatus 100 and the final imaging pattern a is determined in advance, for example, the pattern is "OFILM", and the final imaging pattern a is "OFILM". In other implementation manners, the graph may be other line diagrams or character diagrams, and this embodiment is not particularly limited thereto.
In some embodiments, the micropattern unit 111 may be prepared by a process of exposure and development. Specifically, a black photoresist is coated on the transparent substrate layer 14, and after exposure is performed through a mask and an exposure machine, a plurality of micropattern units 111 are formed on the transparent substrate layer 14 by means of liquid medicine development or gas development.
Alternatively, the plurality of micropattern units 111 may be arranged in a matrix array or a hexagonal array.
In an alternative embodiment, as shown in fig. 2, fig. 2 shows that the plurality of micro-pattern units 111 are arranged in a matrix array, in this case, each micro-pattern unit 111 may be rectangular, and the matrix array is formed by rectangular splicing, and accordingly, in order to make each micro-lens unit 131 correspond to each micro-pattern unit 111 one by one, the plurality of micro-lens units 131 are arranged in an array in a matrix.
In another alternative embodiment, as shown in fig. 3, fig. 3 shows that the plurality of micro pattern units 111 are arranged in a hexagonal array, in this case, each micro pattern unit 111 may be hexagonal in shape, and the hexagonal array is formed by hexagonal splicing, and accordingly, the plurality of micro lens units 131 are arranged in a hexagonal array in order to make each micro lens unit 131 correspond to each micro pattern unit 111 one to one. In some other embodiments, the plurality of micropattern units 111 may be arranged in a circular array or a triangular array, and the like, which is not particularly limited in this embodiment.
Alternatively, the shapes and sizes of the patterns on the respective micropattern units 111 are the same. Considering that the pattern layer 11 adopted in the present embodiment is a flat layered structure, distances from various places on the pattern layer 11 to the projection plane forming the final imaging pattern a are the same, that is, distances from various micro-pattern units 111 to the projection plane are the same, so that shapes and sizes of a plurality of imaging sub-patterns a formed on the same projection plane are the same, so that the plurality of imaging sub-patterns a can be superposed to form the imaging pattern a with the same shape and size, and the imaging pattern a is clear, thereby improving imaging quality.
When the pattern layer 11 is an arc-shaped or step-shaped layered structure, distances from various parts of the pattern layer 11 to a projection plane forming the final imaging pattern a are different, that is, distances from the micro pattern units 111 to the projection plane are different, and in this case, the patterns of the micro pattern units 111 may be designed to have the same shape and different sizes, so that the sizes of the imaging sub-patterns a on the same projection plane are adjusted by the patterns with different sizes and are made to be the same.
In some embodiments, the microlenses 13 can be formed by forming the microlens layer 13 on the transparent substrate layer 14, for example, by nanoimprinting on the surface of the transparent substrate layer 14 opposite to the surface on which the micropattern units 111 are disposed. Specifically, the transparent base material layer 14 is coated with an adhesive, and the microlens layer 13 is formed on the transparent base material layer by sequentially performing a series of processes such as mold closing, alignment, UV Curing (ultraviet Curing), mold opening, and heat Curing.
Alternatively, the curvature radius of each microlens unit 131 is the same. Considering that the microlens layer 13 adopted in the present embodiment is a flat layered structure, the distances from the microlens units 131 to the same projection plane are the same, and the imaging sub-patterns a formed by the microlens units 131 on the projection planes with different distances are different in size, therefore, the present embodiment adopts the design that the curvature radii of the microlens units 131 are the same, so that the imaging sub-patterns a formed by the plurality of microlens units 131 on the projection planes with different distances are the same in size, and thus the plurality of imaging sub-patterns a can be superposed to form the imaging patterns a with the same size, and the imaging patterns a are clear, thereby improving the imaging quality.
When the microlens layer 13 is an arc-shaped or step-shaped layered structure, distances from various parts of the microlens layer 13 to the projection plane forming the final imaging pattern a are different, that is, distances from the microlens units 131 to the projection plane are different, and at this time, the plurality of microlens units 131 can adopt a design with different curvatures, so that the sizes of the plurality of imaging sub-patterns a on the same projection plane can be adjusted through different curvatures, and the sizes are made to be consistent.
For example, the collimating optical assembly 12 may include one of a collimating lens, a double-layer microlens array, a single-layer microlens array, a fresnel lens, and an LED light projecting lens, and the collimating optical assembly 12 may be selectively matched according to the actual use requirement of the projection apparatus 100 to meet different use requirements.
As shown in fig. 4, fig. 4 shows the collimating optical assembly 12 as a two-layer microlens array, as shown in fig. 5, fig. 5 shows the collimating optical assembly 12 as a single-layer microlens array, as shown in fig. 6, and fig. 6 shows the collimating optical assembly 12 as a fresnel lens. The light emitted from the light source 10 is refracted by the collimating optical assembly 12 to form parallel light, so that the light can be vertically incident on the patterned layer 11.
In the present embodiment, as shown in fig. 7 and 8, the plurality of microlens units 131 includes at least one first microlens unit 13a and at least one second microlens unit 13b, the first microlens unit 13a is used for projection forming the first imaging sub-pattern a1The first imaging sub-pattern a1The second microlens unit 13b is used to form a second imaging sub-pattern a for reference imaging of the sub-pattern2And making the second imaged sub-pattern a2Is shifted to coincide with the projection position of the reference imaging sub-pattern. It can be understood that the first imaging sub-pattern a formed by projection of the first lens unit1The projection position of the final imaging pattern A can be determined as a reference imaging sub-pattern, and a second imaging sub-pattern a is projected by the second microlens unit 13b2And making the second imaged sub-pattern a2Is shifted to coincide with the projection position of the reference imaging sub-pattern, so that the second imaging sub-pattern a2Can be combined with the first imaging sub-pattern a1Overlapping to form the final imaging pattern A, ensuring imaging quality and avoiding the first imaging sub-pattern a1A ghost image of the image pattern a occurs due to a deviation from the projection position of the second image word pattern.
Alternatively, the first microlens unit 13a is a circularly symmetric structure, and the second microlens unit 13b is a non-circularly symmetric structure. It will be appreciated that the first microlens unit 13a adopts a circularly symmetric structure, which enables the first imaging sub-pattern a1The projection position of the second microlens unit 13b is opposite to the first microlens unit 13a, so as to determine the projection position of the finally formed imaging sub-pattern A, and the second microlens unit 13b adopts a non-circular symmetrical structure to enable the second imaging sub-pattern a to be formed2Is shifted to the first imaging sub-pattern a1So as to coincide with the first imaged sub-pattern a1The superposition forms an imaging pattern A.
The embodiment of the present invention provides a projection apparatus 100, by arranging a pattern layer 11 to include a plurality of micro pattern units 111 arranged in an array, the micro pattern units 111 having a pattern, and arranging a microlens layer 13 on a side of the pattern layer 11 away from a collimating optical assembly 12, arranging the microlens layer 13 to include a plurality of micro lens units 131 arranged in an array, and making each microlens unit 131 correspond to each micro pattern unit 111 one by one, so that the microlens unit 131 projects the pattern of the micro pattern unit 111 to form an imaging sub-pattern a, the plurality of imaging sub-patterns a are overlapped to form a final imaging pattern a, the microlens layer 13 formed by the plurality of micro lens units 131 arranged in an array is used as a projection lens, and the pattern layer 11 is arranged to include a plurality of micro pattern units 111 arranged in an array, thereby on the basis of ensuring the imaging effect, the volume of the projection device 100 is effectively reduced.
Example two
The embodiment discloses a vehicle 200, the vehicle 200 includes a main body portion 21 and the projection apparatus 100 of the first embodiment, and the projection apparatus 100 is disposed on the main body portion 21.
Illustratively, the vehicle 200 is an automobile or a bicycle. The projection apparatus 100 of the embodiment can be used as a welcome lamp, a ground direction lamp and a ground braking distance warning lamp of the vehicle 200.
As an alternative embodiment, where the vehicle 200 is an automobile, the body portion 21 may be an automobile door or an automobile chassis.
As another alternative, the vehicle 200 is a bicycle, and the main body portion 21 can be a bicycle frame or a bicycle saddle.
The embodiment of the utility model provides a vehicle 200, projection arrangement 100's volume is less, can reduce projection arrangement 100 and occupy vehicle 200's space, reduces vehicle 200's volume and weight.
EXAMPLE III
The third embodiment discloses an electronic product 300, and the electronic product 300 includes the projection apparatus 100 of the first embodiment.
The projection apparatus 100 of the embodiment can be used as a greeting lamp or a warning lamp of the electronic product 300.
For example, the electronic product 300 may be a projector, an unmanned aerial vehicle, and the like, and this embodiment is not particularly limited thereto.
The third embodiment of the present invention provides an electronic product 300, the volume of the projection apparatus 100 is smaller, the space occupied by the projection apparatus 100 on the electronic product 300 can be reduced, and the volume and the weight of the electronic product 300 can be reduced.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A projection device, comprising:
a light emitting source;
the pattern layer comprises a plurality of micro-pattern units which are arranged in an array, and the micro-pattern units are provided with graphs;
the collimating optical assembly is positioned between the light-emitting source and the pattern layer and is used for enabling light rays emitted by the light-emitting source to be vertically incident to the pattern layer; and
the micro-lens layer is positioned on one side of the pattern layer, which is far away from the collimating optical assembly, the micro-lens layer comprises a plurality of micro-lens units which are arranged in an array mode, each micro-lens unit corresponds to each micro-pattern unit one by one, each micro-lens unit is used for receiving light rays emitted from the corresponding micro-pattern unit and respectively projects imaging sub-patterns corresponding to the patterns on the micro-pattern units, and the imaging sub-patterns are superposed to form a final imaging pattern.
2. The projection device of claim 1, further comprising a transparent substrate layer, wherein the pattern layer is disposed on a side of the transparent substrate layer facing the light-emitting source, and wherein the microlens layer is disposed on a side of the transparent substrate layer facing away from the light-emitting source.
3. The projection apparatus according to claim 1 or 2, wherein the plurality of microlens units includes at least one first microlens unit and at least one second microlens unit;
the first micro-lens unit is used for projecting and forming a first imaging sub-pattern, and the first imaging sub-pattern is a reference imaging sub-pattern;
the second micro-lens unit is used for projecting and forming a second imaging sub-pattern, and the projecting position of the second imaging sub-pattern is shifted to be coincided with the projecting position of the reference imaging sub-pattern.
4. The projection device of claim 3, wherein the first microlens unit is a circularly symmetric structure and the second microlens unit is a non-circularly symmetric structure.
5. A projection device according to claim 1 or 2, wherein the shapes and sizes of the patterns on each micropattern unit are the same.
6. A projection device according to claim 1 or 2, wherein the radii of curvature of each of said microlens elements are the same.
7. A projection device according to claim 1 or 2, wherein said collimating optical assembly comprises: one of a collimating lens, a double-layer microlens array, a single-layer microlens array, a Fresnel lens and an LED light projecting lens.
8. The projection apparatus according to claim 1 or 2, wherein the micropattern unit comprises a light-transmissive region and a light-shielding region disposed around the light-transmissive region, the light-transmissive region being formed with the pattern.
9. A vehicle comprising a body portion and a projection device as claimed in any one of claims 1 to 8, the projection device being provided on the body portion.
10. An electronic product, characterized in that the electronic product comprises a projection device according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021666238.5U CN212933212U (en) | 2020-08-11 | 2020-08-11 | Projection device, vehicle and electronic product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021666238.5U CN212933212U (en) | 2020-08-11 | 2020-08-11 | Projection device, vehicle and electronic product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212933212U true CN212933212U (en) | 2021-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021666238.5U Expired - Fee Related CN212933212U (en) | 2020-08-11 | 2020-08-11 | Projection device, vehicle and electronic product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212933212U (en) |
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2020
- 2020-08-11 CN CN202021666238.5U patent/CN212933212U/en not_active Expired - Fee Related
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