CN213585972U - Lens array, sensor array and lighting device - Google Patents
Lens array, sensor array and lighting device Download PDFInfo
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- CN213585972U CN213585972U CN202022897745.6U CN202022897745U CN213585972U CN 213585972 U CN213585972 U CN 213585972U CN 202022897745 U CN202022897745 U CN 202022897745U CN 213585972 U CN213585972 U CN 213585972U
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Abstract
The utility model provides a lens array, sensor array and daylighting device. The lens array includes a plurality of first lens units and a plurality of second lens units arranged in an array, the first lens units and the second lens units have different ranges of filtering wavelengths, the first lens units and the second lens units are alternately arranged in a target direction, and the target direction includes a first direction and a second direction. The embodiment of the utility model provides a lens array that lens unit through setting up two kinds of different filtering wavelengths of first lens unit and second lens unit constitutes, and on the direction of difference, first lens unit and second lens unit set up in turn, can filter to the light of different wavelengths through different lens units in the lens array, have improved lens array's suitability, help satisfying more user demands.
Description
Technical Field
The utility model relates to the field of photoelectric technology, especially, relate to a lens array, sensor array and daylighting device.
Background
In order to realize the imaging function, a lens is generally required to be provided in an imaging device, an image pickup device, or the like to realize adjustment of the light propagation direction. In the related art, the lens has a single function, and is difficult to meet imaging requirements in different use requirements.
SUMMERY OF THE UTILITY MODEL
An embodiment of the utility model provides a lens array, sensor array and daylighting device to the function of solving current lens is comparatively single, is difficult to satisfy the problem of the formation of image requirement among the different user demands.
In a first aspect, an embodiment of the present invention provides a lens array, including a plurality of first lens units and a plurality of second lens units arranged in an array, the first lens units and the second lens units have different ranges of filtering wavelengths, the first lens units and the second lens units are alternately arranged in a target direction, and the target direction includes a first direction and a second direction.
In some embodiments, one of the first lens unit and the second lens unit is an octagonal lens and the other is a quadrilateral lens, and at least one boundary dimension of the first lens unit is adapted to at least one boundary dimension of the second lens unit to seamlessly splice the plurality of first lens units and the plurality of second lens units.
In some embodiments, one of the first lens unit and the second lens unit is in a regular octagon shape and the other is in a square shape, and a side length of the first lens unit is equal to a side length of the second lens unit.
In some embodiments, the area of the first lens unit is larger than the area of the second lens unit, and the filtering wavelength range corresponding to the first lens unit is larger than the filtering wavelength range corresponding to the second lens unit.
In some embodiments, the first lens unit has a full wavelength range, and the second lens unit has a full wavelength range of any one of red light, blue light, and green light.
In some embodiments, the number of the second lens units adjacent to the first lens unit is four, and the filtering wavelengths corresponding to the four second lens units adjacent to the same first lens unit are red, blue, green and green, respectively.
In some embodiments, the first lens unit and the second lens unit have an area ratio of 3:1 to 1: 1.
In a second aspect, the embodiment of the present invention provides a sensor array, including a plurality of first sensitization units and a plurality of second sensitization units that the array was arranged, first sensitization unit with the wavelength range of the light of second sensitization unit's collection is different, first sensitization unit with second sensitization unit sets up in turn on the target direction, the target direction includes first direction and second direction.
In some embodiments, the first light sensing unit includes a first excitation type light sensing unit and a first inhibition type light sensing unit;
the first excitation type photosensitive unit, the first inhibition type photosensitive unit and the second photosensitive unit are arranged in an array mode to form a pixel unit.
In some embodiments, the first excitation type light sensing unit and the first inhibition type light sensing unit are both configured to extract an optical signal of a first set wavelength band and convert the optical signal of the first set wavelength band into a current signal, and the first light sensing unit is further configured to output the current signal representing a light intensity variation of the optical signal of the first set wavelength band according to a difference between the current signals converted by the first excitation type light sensing unit and the first inhibition type light sensing unit, where the first set wavelength band includes an ultraviolet wavelength band.
In a third aspect, an embodiment of the present invention provides a lighting device, including a lens array and a sensor array;
wherein the lens array is the lens array of any one of the first aspects and/or the sensor array is the sensor array of any one of the second aspects.
In some embodiments, the lens array is the lens array of any one of the first aspect, and the sensor array is the sensor array of any one of the second aspect, and each of the first or second light-sensing units corresponds to one of the first or second lens units.
The embodiment of the utility model provides a lens array that lens unit through setting up two kinds of different filtering wavelengths of first lens unit and second lens unit constitutes, and on the direction of difference, first lens unit and second lens unit set up in turn, can filter to the light of different wavelengths through different lens units in the lens array, have improved lens array's suitability, help satisfying more user demands.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a lens unit according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another lens unit according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another lens unit according to an 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 some, not all, of the embodiments of the present invention. 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.
The utility model provides a lens array.
As shown in fig. 1, in one embodiment, the lens array includes a plurality of first lens units 101 and a plurality of second lens units 102 arranged in an array, the first lens units 101 and the second lens units 102 are lens units having different ranges of filtering wavelengths, and the first lens units 101 and the second lens units 102 are alternately arranged in a target direction, which includes a first direction and a second direction.
The first direction and the second direction in this embodiment are different directions, for example, the included angle between the first direction and the second direction may be different angles, and specifically, the included angle between the first direction and the second direction may be different angles such as 30 ° and 60 °.
In one embodiment of the present application, the first direction and the second direction are at an angle of 90 °, as shown in fig. 1, wherein the OX direction represents the first direction and the OY direction represents the second direction, that is, the first direction and the second direction are perpendicular to each other.
The first lens unit 101 and the second lens unit 102 in the present embodiment are different in the range of the filter wavelength.
In one embodiment, the wavelengths of the filtering of the first lens unit 101 and the second lens unit 102 are different.
It should be understood that the wavelengths of the light rays with different colors are different, and by setting the wavelengths of the filtering of the first lens unit 101 and the second lens unit 102 to be different, it can be realized that the light rays with different colors are transmitted by the first lens unit 101 and the second lens unit 102, respectively, so as to realize the display or light collection function.
The embodiment of the utility model provides a through the lens array that the lens unit that sets up two kinds of different filtering wavelengths of first lens unit 101 and second lens unit 102 constitutes, and on the direction of difference, first lens unit 101 and second lens unit 102 set up in turn, can filter to the light of different wavelengths through the different lens units in the lens array, have improved the suitability of lens array, help satisfying more user demands.
In this embodiment, the focal lengths of the first lens unit 101 and the second lens unit 102 may be the same or different.
In one embodiment, the first lens unit 101 and the second lens unit 102 have different focal lengths, and the first lens unit 101 and the second lens unit 102 can focus light onto planes at different distances from the lens array, so that the electrical elements corresponding to the first lens unit 101 and the second lens unit 102, such as light sensors, can be arranged in a staggered manner.
It should be understood that the area in the same plane is limited, the number of the light sensors that can be disposed is also limited, and the light sensors corresponding to different lens units can be disposed on different planes by setting the first lens unit 101 and the second lens unit 102 to have different focal lengths, so that the area of the light sensors disposed in each plane is enlarged, the display of the conditions for disposing the light sensors is reduced, and the light collection effect is improved.
In some embodiments, one of the first lens unit 101 and the second lens unit 102 is an octagonal lens, and the other is a quadrilateral lens, and the first lens unit 101 is an octagonal lens and the second lens unit 102 is a quadrilateral lens in this embodiment.
At least one boundary dimension of the first lens unit 101 is adapted to at least one boundary dimension of the second lens unit 102, so that the plurality of first lens units 101 and the plurality of second lens units 102 are seamlessly spliced.
By arranging the first lens unit 101 and the second lens unit 102 as an octagon and a quadrangle, respectively, wherein four sides of each octagon lens are adjacent to other octagon lenses, and the other four sides are adjacent to four sides of each quadrangle lens, the adjacent sides of the quadrangle lens and the octagon lens are equal to each other under the condition of neglecting the splicing error, so that the first lens unit 101 and the second lens unit 102 can be spliced seamlessly, and the improvement of the light transmittance in a unit area is facilitated.
As shown in fig. 1, in some embodiments, one of the first lens unit 101 and the second lens unit 102 has a regular octagonal shape and the other has a square shape, and the side length of the first lens unit 101 is equal to the side length of the second lens unit 102.
In other embodiments, the lengths of the side lengths are increased or decreased while keeping the side lengths of the adjacent sides equal, so as to adjust the area ratios of the first lens unit 101 and the second lens unit 102 while keeping the seamless splicing of the plurality of first lens units 101 and the plurality of second lens units 102, thereby adapting to different use requirements.
In other embodiments, as shown in fig. 2, second lens unit 102 is two sets of rectangular lenses with unequal lengths of opposite sides, and accordingly, the lengths of the sides of first lens unit 101 are not exactly equal, which also enables seamless splicing of first lens unit 101 and second lens unit 102.
In an alternative embodiment, the area of the first lens unit 101 is larger than the area of the second lens unit 102, and the filtering wavelength range corresponding to the first lens unit 101 is larger than the filtering wavelength range corresponding to the second lens unit 102.
The side lengths of the octagonal lens and the quadrilateral lens are adjustable.
It should be understood that, in the present embodiment, different filtering effects for different wavelengths of light can be achieved by adjusting the area sizes of the first lens unit 101 and the second lens unit 102.
In some embodiments, the area ratio of the first lens unit 101 and the second lens unit 102 is greater than 1, that is, the area of the first lens unit 101 is greater than the area of the second lens unit 102.
In practice, the areas and area ratios of the first lens unit 101 and the second lens unit 102 may be determined as needed, and further, the side lengths of the first lens unit 101 and the second lens unit 102 may be determined according to the determined areas and area ratios, thereby achieving different filtering effects.
For example, in one embodiment, the first lens unit 101 is an octagonal lens, the second lens unit 102 is a quadrangular lens, and the shape and size of the second lens unit 102 are first determined as needed, and accordingly, the side length of the side where the first lens unit 101 and the second lens unit 102 are adjacent to each other is also determined.
Further, the area ratio of the first lens unit 101 to the second lens unit 102 is set as necessary, and may be proportional to various sizes such as 3:1, 5:1, 7:1, 3.6:1, and after the area ratio is determined, the area of the first lens unit 101 can be determined, so that the other four sides of the first lens unit 101 and the size of the inner angle of the first lens unit 101 can be further set, and the area of the first lens unit 101 can be made to satisfy the requirement.
Referring to the lens arrays in the two embodiments shown in fig. 1 and fig. 3, in the two embodiments, the second lens unit 102 is a square lens, and the first lens unit 101 is an octagonal lens, however, in the two embodiments, the side lengths of the first lens unit 101 and the second lens unit 102 that are not adjacent to each other are not equal, so that the first lens unit 101 and the second lens unit 102 have different area ratios.
In one embodiment, the first lens unit 101 corresponds to a filter wavelength range allowing red light to pass through, and the second lens unit 102 corresponds to a filter wavelength range allowing green light to pass through, and if it is desired to increase the passing ratio of red light, the area of the first lens unit 101 is controlled to increase, and the area of the second lens unit 102 is controlled to decrease.
In practice, the first lens unit 101 and the second lens unit 102 with different sizes may be selected according to specific needs, so as to adjust the area ratio of the first lens unit 101 and the second lens unit 102.
In some embodiments, the area ratio of the first lens unit 101 to the second lens unit 102 is 3:1 to 1:1, which can provide good filtering effect for different wavelengths of light.
In the present embodiment, the ranges of the filter wavelengths of the first lens unit 101 and the second lens unit 102 may not overlap at all, or may overlap only partially.
For example, the first lens unit 101 may correspond to a wavelength range of visible light, and the second lens unit 102 may correspond to a wavelength range of ultraviolet light or infrared light, so that separate collection of ultraviolet light and infrared light can be achieved; as another example, the first lens unit 101 may correspond to a full-band wavelength range, and the second lens unit 102 may correspond to a specific range of light, for example, one or more of red, blue, green, ultraviolet, and infrared light, so as to achieve separate filtering for the specific range of light.
In one embodiment, the filtering wavelength range of the first lens unit 101 is a full wavelength band, and the filtering wavelength range of the second lens unit 102 is any one of red light, blue light, and green light.
In some embodiments, the number of the second lens units 102 adjacent to the first lens unit 101 is four, and the filtering wavelengths corresponding to the four second lens units 102 adjacent to the same first lens unit 101 are red, blue, green, and green, respectively.
As shown in fig. 1, the first lens unit 101 is exemplarily illustrated as an octagonal lens, and the second lens unit 102 is exemplarily illustrated as a quadrangle. For the region outside the edge region, the number of the second lens units 102 adjacent to each first lens unit 101 is four, wherein the filtering wavelength of the first lens unit 101 is full wavelength, that is, the light of each color can pass through the first lens unit 101, and the filtering wavelengths corresponding to the second lens units 102 are red, blue, green and green, respectively, that is, one of the filtering wavelengths of the four second lens units 102 adjacent to the first lens unit 101 is red, one is blue, and two are green.
The utility model discloses technical scheme can provide the filter effect of two kinds of differences through the lens array that sets up the lens unit including two kinds of different filtering ranges to further respond to different light, widened the application scene of lens array, improved the filter effect to the light of specific wavelength.
In one embodiment, the first lens unit 101 and the second lens unit 102 may each be formed of independently disposed lenses.
In other embodiments, the lens array includes a transparent substrate, on which a filter layer may be disposed, so as to achieve a filtering effect for light with different wavelengths, for example, if the first lens unit 101 is configured to allow red light to pass through, a filter layer corresponding to red light may be disposed in a specific area, so that the area where the filter layer is disposed is equivalent to forming the first lens unit 101, and for example, if the second lens unit 102 is desired to allow light with a full wavelength band to pass through, a filter layer allowing light with a full wavelength band to pass through may be disposed in a specific area or no filter layer may be disposed, and light is directly transmitted by using the transparent substrate, so that the area is equivalent to forming the second lens unit 102.
The embodiment of the utility model provides a sensor array is still provided.
In this embodiment, the sensor array includes a plurality of first light sensing units and a plurality of second light sensing units that are arranged in an array, and the wavelength ranges of the light collected by first light sensing units and second light sensing units are different, and first light sensing units and second light sensing units are alternately arranged in the target direction, and the target direction includes a first direction and a second direction.
The arrangement of the first photosensitive unit and the plurality of second photosensitive units in the sensor array in this embodiment can refer to the arrangement of the first lens unit 101 and the second lens unit 102 in fig. 1, and details are not repeated here.
In this embodiment, the first photosensitive unit and the second photosensitive unit are respectively configured to use light beams with different wavelength ranges, in other words, the first photosensitive unit and the second photosensitive unit are respectively sensitive to light beams with different wavelength ranges, so that the light beams with the wavelength ranges can be collected.
In this embodiment, the wavelength ranges of the light collected by the first photosensitive unit and the second photosensitive unit may or may not overlap.
In one embodiment, the first sensor unit may be used to collect the full band of light and the first sensor unit may be used to collect one or more of ultraviolet, infrared, red, blue, or green light.
Through setting up the light that first sensor unit and second sensitization unit gathered different wavelength ranges respectively, can improve the accuracy degree to light collection.
Photosensitive unit in some embodiments, the first photosensitive unit includes a first excitation type photosensitive unit and a first inhibition type photosensitive unit; the first excitation type photosensitive unit, the first inhibition type photosensitive unit and the second photosensitive unit are arranged in an array mode to form a pixel unit.
The pixel unit can be one pixel unit in a pixel sensing structure of the bimodal ultraviolet bionic vision sensor.
The lighting device of the technical scheme of the embodiment of the utility model can be applied to the bionical visual sensor of bimodal ultraviolet, utilize different vision perception cells in this sensor simulation people's eye retina, through the light signal of the first settlement wave band in the first sensitization unit perception target light signal, and the current signal of the light intensity variation of the light signal of output representation first settlement wave band, obtain light intensity gradient information with simulation sighting rod cell, thereby promote the perception ability of sensor to dynamic target, increase the dynamic range of the image that the sensor gathered, improve the shooting speed of sensor; the second light sensing unit senses the optical signal of the second set waveband in the target optical signal and outputs a voltage signal representing the light intensity of the optical signal of the second set waveband to simulate the cone cells to acquire color light intensity information, and the color restoration degree and the image quality of the image shot by the sensor are improved.
The technical scheme of the utility model, through setting up the sensitization unit array including two kinds of different lens units, can provide the filter effect of two kinds of differences to further respond to different light, further widened the applied scene of sensor.
In some embodiments, the first excitation type photosensitive unit and the first inhibition type photosensitive unit are both configured to extract an optical signal of a first set wavelength band and convert the optical signal of the first set wavelength band into a current signal, and the first photosensitive unit is further configured to output the current signal representing a light intensity variation amount of the optical signal of the first set wavelength band according to a difference between the current signals converted by the first excitation type photosensitive unit and the first inhibition type photosensitive unit, where the first set wavelength band includes an ultraviolet wavelength band.
Therefore, the bimodal ultraviolet bionic vision sensor can also sense the color light intensity information and/or the light intensity change information of the ultraviolet in the target light signal, so that the bimodal ultraviolet bionic vision sensor can be widely applied to ultraviolet cameras in the fields of medicine and the like.
An embodiment of the present invention further provides a light emitting device, including lens array and light emitting unit, the lens array is the lens array of any one of the first aspect.
In this embodiment, each light emitting unit is disposed corresponding to one first lens unit 101 or one second lens unit 102 in the lens array, so as to achieve different filtering effects on the light emitted by the light emitting unit.
The embodiment of the utility model provides a lighting device is still provided, including lens array and light sensor, the lens array is the lens array of any one in the first aspect. The lighting device in this embodiment may be a camera, a bionic eye, or another device for collecting light.
The lens array may be a lens array in any of the above-described lens array embodiments, and the sensor array may be any of the above-described sensor array embodiments. Thus, the lighting device in this embodiment can achieve all the technical effects of the lens array and/or the light sensor, and details are not described here.
In some embodiments, the lighting device includes both the lens array in the lens array embodiment and the sensor array in the sensor array embodiment, and each of the first photosensitive units or the second photosensitive units corresponds to one of the first lens units 101 or one of the second lens units 102 in the lens array. Through making different sensitization units correspond with corresponding lens unit, can improve the light collection effect to specific wavelength, reduce the collection to disturbing light.
The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (12)
1. A lens array comprising a plurality of first lens units and a plurality of second lens units arranged in an array, the first lens units and the second lens units having different ranges of filter wavelengths, the first lens units and the second lens units being alternately arranged in a target direction, the target direction comprising a first direction and a second direction.
2. The lens array of claim 1, wherein one of the first lens unit and the second lens unit is an octagonal lens and the other is a quadrilateral lens, and at least one boundary dimension of the first lens unit is adapted to at least one boundary dimension of the second lens unit to enable seamless splicing of the plurality of first lens units and the plurality of second lens units.
3. The lens array of claim 2, wherein one of the first lens unit and the second lens unit is in a regular octagon shape and the other is in a square shape, and a side length of the first lens unit is equal to a side length of the second lens unit.
4. The lens array of claim 2, wherein the area of the first lens unit is larger than the area of the second lens unit, and the first lens unit corresponds to a filtering wavelength range that is larger than the filtering wavelength range of the second lens unit.
5. The lens array of claim 4, wherein the first lens unit has a filter wavelength range of a full band, and the second lens unit has a filter wavelength range of any one of red light, blue light, and green light.
6. The lens array of claim 4, wherein the number of the second lens units adjacent to the first lens unit is four, and the filtering wavelengths corresponding to the four second lens units adjacent to the same first lens unit are red, blue, green, and green, respectively.
7. The lens array according to any one of claims 4 to 6, wherein an area ratio of the first lens unit and the second lens unit is 3:1 to 1: 1.
8. The sensor array is characterized by comprising a plurality of first photosensitive units and a plurality of second photosensitive units which are arranged in an array mode, the wavelength ranges of collected light rays of the first photosensitive units and the second photosensitive units are different, the first photosensitive units and the second photosensitive units are alternately arranged in a target direction, and the target direction comprises a first direction and a second direction.
9. The sensor array of claim 8, wherein the first photosensing unit comprises a first excitation photosensing unit and a first inhibition photosensing unit;
the first excitation type photosensitive unit, the first inhibition type photosensitive unit and the second photosensitive unit are arranged in an array mode to form a pixel unit.
10. The sensor array of claim 9, wherein the first excitation type photosensitive unit and the first inhibition type photosensitive unit are each configured to extract an optical signal of a first set wavelength band and convert the optical signal of the first set wavelength band into a current signal, and the first photosensitive unit is further configured to output the current signal representing a variation amount of light intensity of the optical signal of the first set wavelength band based on a difference between the current signals converted by the first excitation type photosensitive unit and the first inhibition type photosensitive unit, and the first set wavelength band includes an ultraviolet wavelength band.
11. A daylighting device is characterized by comprising a lens array and a sensor array;
wherein the lens array is the lens array of any one of claims 1 to 7 and/or the sensor array is the sensor array of any one of claims 8 to 10.
12. A lighting device according to claim 11, wherein, when said lighting device comprises a lens array according to any one of claims 1 to 7 and a sensor array according to any one of claims 8 to 10, each of said first or second light-sensing units corresponds to one of said first or second lens units, respectively.
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| CN202022897745.6U CN213585972U (en) | 2020-12-04 | 2020-12-04 | Lens array, sensor array and lighting device |
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| CN202022897745.6U CN213585972U (en) | 2020-12-04 | 2020-12-04 | Lens array, sensor array and lighting device |
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