CN112034665B - Flash lamp assembly and electronic equipment - Google Patents
Flash lamp assembly and electronic equipment Download PDFInfo
- Publication number
- CN112034665B CN112034665B CN202010968053.8A CN202010968053A CN112034665B CN 112034665 B CN112034665 B CN 112034665B CN 202010968053 A CN202010968053 A CN 202010968053A CN 112034665 B CN112034665 B CN 112034665B
- Authority
- CN
- China
- Prior art keywords
- light source
- light
- layer
- accommodating
- light emitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
- G03B15/03—Combinations of cameras with lighting apparatus; Flash units
- G03B15/05—Combinations of cameras with electronic flash apparatus; Electronic flash units
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
- H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/483—Containers
Abstract
The present disclosure relates to the field of electronic device technology, and in particular relates to a flash lamp assembly and an electronic device, the flash lamp assembly includes: the light source comprises a base, a light source layer and a photoluminescent layer, wherein the base is provided with an accommodating part with an opening; the light source layer comprises a plurality of light sources, the light sources are arranged in the accommodating part, and light emitting surfaces of the light sources face to the opening of the accommodating part; the photoluminescence layer is located the light-emitting side of light source layer, the photoluminescence layer includes a plurality of luminescence units, and is a plurality of at least include the luminescence unit of two kinds of luminous colour temperatures in the luminescence unit, and one the luminescence unit corresponds one or more the light source, the luminescence unit is used for adjusting the correspondence the colour temperature of the light that the light source sent. The range of color temperatures of the light output by the flash assembly can be increased to some extent.
Description
Technical Field
The present disclosure relates to the technical field of electronic devices, and particularly to a flash lamp assembly and an electronic device.
Background
Flash lights in electronic devices are commonly used to provide a light source when the electronic device takes a picture, or may be used as a flashlight. When the electronic equipment takes a picture, the color temperature of the flash lamp has a large influence on the picture taking effect.
At present, a xenon lamp and an LED (light emitting diode) lamp are commonly used as a flash lamp for electronic devices. The color temperature of light emitted by the flash lamp is monotonous at present, which limits the adaptability of the electronic equipment for taking pictures under different ambient light and influences the imaging effect of the electronic equipment.
It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure, and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
The present disclosure is directed to a flash lamp assembly and an electronic device, so as to increase a color temperature range of light emitted from a flash lamp of the electronic device to a certain extent.
According to an aspect of the present disclosure, there is provided a flash assembly including:
the base is provided with an accommodating part with an opening;
the light source layer comprises a plurality of light sources, the light sources are arranged in the accommodating part, and light emitting surfaces of the light sources face to the opening of the accommodating part; and
the photoluminescence layer is located the light-emitting side of light source layer, the photoluminescence layer includes a plurality of luminescence units, and is a plurality of at least include the luminescence unit of two kinds of luminous colour temperatures in the luminescence unit, and one the luminescence unit corresponds one or more the light source, the luminescence unit is used for receiving the correspondence the light that the light source sent and output the light of predetermineeing the colour temperature.
According to another aspect of the present disclosure, there is provided an electronic device including the flash assembly described above.
The embodiment of the utility model provides a flash light subassembly, the light that the luminescence unit through having the different colour temperatures of can exporting will correspond the light source converts different colour temperatures into, the luminous luminance of the light source that a plurality of luminescence units correspond can be adjusted, the different luminance light that the light source launched jets out multiple colour temperature adjustable light behind the luminescence unit of different luminous colour temperatures, multiple colour temperature adjustable's light mixes the light that forms multiple colour temperature, thereby the colour temperature scope of the output light of flash light has been improved, be favorable to the promotion of the imaging effect of electronic equipment under the environment of difference. And a plurality of light sources and a plurality of luminescence units are integrated in a base, can control the size of flash light subassembly effectively, are favorable to practicing thrift the space of electronic equipment.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.
Fig. 1 is a schematic structural view of a first flash lamp assembly provided in an exemplary embodiment of the present disclosure;
FIG. 2 is a schematic structural view of a second flash assembly provided in an exemplary embodiment of the present disclosure;
FIG. 3 is an exploded view of a first flash lamp assembly provided in an exemplary embodiment of the present disclosure;
fig. 4 is a schematic distribution diagram of a first light source provided in an exemplary embodiment of the present disclosure;
fig. 5 is an equivalent circuit diagram of a first flash lamp assembly provided by an exemplary embodiment of the present disclosure;
fig. 6 is an equivalent circuit diagram of a second flash lamp assembly provided by an exemplary embodiment of the present disclosure;
FIG. 7 is a schematic diagram of a third flash assembly provided in an exemplary embodiment of the present disclosure;
FIG. 8 is an exploded schematic view of a second flash assembly provided in an exemplary embodiment of the present disclosure;
fig. 9 is a schematic distribution diagram of a second light source provided in an exemplary embodiment of the present disclosure;
FIG. 10 is a schematic diagram of a fourth flash assembly provided in an exemplary embodiment of the present disclosure;
FIG. 11 is a schematic distribution diagram of a third light source provided in an exemplary embodiment of the present disclosure;
fig. 12 is an equivalent circuit diagram of a third flash lamp assembly provided by an exemplary embodiment of the present disclosure;
fig. 13 is a schematic view of a photoluminescent layer provided by an exemplary embodiment of the present disclosure;
fig. 14 is a schematic diagram of an electronic device according to an exemplary embodiment of the present disclosure.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
Although relative terms, such as "upper" and "lower," may be used in this specification to describe one element of an icon relative to another, these terms are used in this specification for convenience only, e.g., in accordance with the orientation of the examples described in the figures. It will be appreciated that if the device of the icon were turned upside down, the element described as "upper" would become the element "lower". When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via another structure.
There is first provided in an exemplary embodiment of the present disclosure a flash assembly, as shown in fig. 1, which may include: the light emitting device comprises a base 100, a light source layer 200 and a photoluminescent layer 300, wherein the base 100 is provided with an accommodating part 110 with an opening; the light source layer 200 includes a plurality of light sources 210, the light sources 210 are disposed in the accommodating portion 110, and light emitting surfaces of the light sources 210 face an opening of the accommodating portion 110; the photoluminescent layer 300 is disposed on the light-emitting side of the light source layer 200, the photoluminescent layer 300 includes a plurality of light-emitting units 310, at least two light-emitting units 310 with different color temperatures are included in the plurality of light-emitting units 310, one light-emitting unit 310 corresponds to one or more light sources 210, and the light-emitting unit 310 is configured to adjust the color temperature of light emitted by the corresponding light source 210.
The embodiment of the utility model provides a flash light subassembly, the light that the luminescence unit through having the different colour temperatures of can exporting will correspond the light source converts different colour temperatures into, the luminous luminance of the light source that a plurality of luminescence units correspond can be adjusted, the different luminance light that the light source launched jets out multiple colour temperature adjustable light behind the luminescence unit of different luminous colour temperatures, multiple colour temperature adjustable's light mixes the light that forms multiple colour temperature, thereby the colour temperature scope of the output light of flash light has been improved, be favorable to the promotion of the imaging effect of electronic equipment under the environment of difference. And a plurality of light sources and a plurality of luminescence units are integrated in a base, can control the size of flash light subassembly effectively, are favorable to practicing thrift the space of electronic equipment.
Further, as shown in fig. 2, the flash lamp assembly provided by the embodiment of the present disclosure may further include a light guide plate 400, the light guide plate 400 is disposed on a side of the photoluminescent layer 300 away from the light source layer 200, and the light guide plate 400 is used for homogenizing light emitted by the photoluminescent layer 300 and reducing chromatic dispersion caused by mixing of multiple color temperature light.
The following will describe in detail the portions of the flash lamp assembly provided by the embodiments of the present disclosure:
the base 100 includes a substrate 120 and a baffle 130, the substrate 120 is used for mounting the light source 210; the baffle 130 is disposed on a side of the substrate 120 where the light source 210 is mounted, and surrounds an edge of the substrate 120 to form a receiving portion 110 having an opening. That is, the baffle 130 forms a dam on the base 100, and an opening is formed on a side of the dam away from the substrate 120. The substrate 120 may be provided thereon with electrical traces and connection pads, etc. for electrically connecting the light sources 210 to provide driving current for the light sources 210. The connection pads can be connected with the circuit traces, and the connection pads are used for connecting an external power supply.
The substrate 120 may be an alumina ceramic plate or a mirror aluminum plate. When the substrate 120 is made of alumina ceramic, the baffle 130 may also be made of alumina ceramic, and in this case, the substrate 120 and the baffle 130 may be integrally formed by sintering. When the substrate 120 is a mirror aluminum plate, the baffle 130 may be formed by a high viscosity dam adhesive that forms a dam around the edge of the mirror aluminum plate.
For example, the substrate 120 may be a rectangular substrate 120, and the barrier 130 may be a rectangular frame. The baffle 130 may include a first baffle 130, a second baffle 130, a third baffle 130, and a fourth baffle 130, and the first baffle 130, the second baffle 130, the third baffle 130, and the fourth baffle 130 are sequentially connected end to form a rectangular frame. The size of the rectangular frame is matched to the size of the substrate 120 so that the rectangular frame can surround the edge of the substrate 120. In practical applications, the substrate 120 may also have a circular, elliptical, or triangular structure, and the corresponding baffle 130 may also have a circular frame, an elliptical frame, or a triangular frame, which is not limited in the embodiments of the present disclosure.
As shown in fig. 3 and 4, the accommodating portion 110 includes a plurality of accommodating regions 11, each accommodating region 11 is provided with one or more light sources 210, each accommodating region is provided with a light emitting unit 310 in a projection area of the photoluminescent layer 300, and any two adjacent light emitting units 310 in the plurality of light emitting units 310 have different light emitting color temperatures.
The accommodating section 11 in the accommodating section 110 may be a plurality of rectangular areas arranged in parallel. One or more light sources are disposed in each receiving area 11. The light source 210 of each accommodating area 11 can be individually powered to realize individual control of the light source 210 in each accommodating area 11, so as to adjust the color temperature of each light emitting unit. Or the plurality of accommodating areas 11 can be divided into a plurality of groups, each group of accommodating areas comprises at least one accommodating area 11, and the light sources in each group of accommodating areas are independently powered.
As shown in fig. 5 and 6, the plurality of receiving areas 11 may include a first receiving area 111 and a second receiving area 112, and the plurality of light source units 210 may include a first light source 211 and a second light source 212. The first receiving area 111 and the second receiving area 112 may be adjacently disposed. The first light source 211 is disposed in the first accommodating section 111, and a light emitting surface of the first light source 211 faces the opening of the accommodating section 110; the second light source 212 is disposed in the second accommodating section 112, a light emitting surface of the second light source 212 faces the opening of the accommodating section 110, and a light emitting area of the first light source 211 is larger than a light emitting area of the second light source 212.
Illustratively, the first light source 211 may be an LED light source, which may include one or more LED light emitting elements. For example, the LED light emitting element may be an LED blue chip, which is typically hundreds of microns (less than 500 microns) in size. The second light source 212 may be one or more of a Micro LED light source, a Nano LED light source, and a Mini LED light source. For example, the Micro LED light source may include a plurality of Micro LED blue light chips, the Nano LED light source may include a plurality of Nano LED blue light chips, and the Mini LED light source may include a plurality of Mini LED blue light chips. The size of the Micro LED blue chip can be in the order of ten microns (less than 50 microns), and the size of the Nano LED blue chip can be less than 1 micron. Of course, in practical applications, the first light source 211 may be the same as the second light source 212.
The plurality of light source units 210 may include one or more first light sources 211 and one or more second light sources 212. The first light sources 211 may be arranged in one or more rows, and the second light sources 212 may be arranged in one or more rows. The first light source 211 columns and the second light source 212 columns are alternately distributed.
As shown in fig. 5, the plurality of receiving areas 11 includes one first receiving area 111 and two second receiving areas 112, the number of the second light sources 212 in the light source layer 200 is plural (e.g., 5-20), and the number of the first light sources 211 is one. One first light source 211 is disposed in the first receiving area 111, and two second receiving areas 112 are respectively disposed with a row of second light sources 212. That is, the plurality of second light sources 212 are respectively disposed at both sides of the first light source 211. The plurality of second light sources 212 are distributed in two rows, and the two rows of second light sources 212 are respectively located at two sides of the first light source 211.
Illustratively, the first receiving area 111 and the second receiving area 112 are adjacent rectangular areas. The first light sources 211 may have a rectangular structure, and two rows of the second light sources 212 may be located at both sides of the first light sources 211 in a length direction. The light source layer 200 may include four second light sources 212, and each column of the second light sources 212 may include two second light sources 212. Of course, the number of the second light sources 212 may be other in practical applications, and the embodiments of the disclosure are not limited thereto.
The first light sources 211 of the first receiving area 111 are connected in series to form a first light source branch (the first light source branch includes a first light source), the plurality of second light sources 212 are connected in series to form a second light source branch, and the first light source branch and the second light source branch are connected in parallel. At this time, an equivalent circuit diagram of the flash lamp assembly provided by the embodiment of the present disclosure may be as shown in fig. 7. Wherein, R1 is the equivalent resistance of the first light source 211, R2 is the equivalent resistance of the second light source branch, and since R1 and R2 are different, when connected to the same power supply, the currents flowing through the first light source 211 and the second light source 212 are different, so the luminance of the first light source 211 and the second light source 212 are different, and the light passes through different light emitting units 310 and then is mixed to form light with different color temperatures. When the input current is adjusted, the light emitting luminance of the first and second light sources 211 and 212 is changed, and the converted color temperature through the light emitting unit 310 can also be changed.
Further, as shown in fig. 8, the flash lamp assembly provided in the embodiment of the present disclosure may further include a current limiting resistor, where the current limiting resistor is disposed in the second light source branch, and a resistance value of the current limiting resistor is greater than an equivalent resistor of the first light source 211.
The current limiting resistor may be a fixed resistor or a variable resistor. The resistance Rx of the current limiting resistor may be 6-20 times the equivalent resistance of the first light source 211 (the amplification factor may be determined according to the maximum current of the single first light source 211). The first light source 211 and the second light source branch are connected to the same power supply, when the input current is small, the current flows through the first light source 211, the first light source 211 emits light, at this time, the second light emitting unit hardly emits light, and the light emitted by the first light source 211 is the first color temperature light after passing through the photoluminescent layer 300; when the input current increases, the first light source 211 and the second light source branch have current flowing through, and the first light source 211 and the second light source 212 both emit light and are mixed to form third color temperature light after passing through the photoluminescent layer 300.
Of course, in practical applications, the driving current may be provided to the first light emitting unit and the second light emitting unit, respectively. For example, when the first light source 211 is supplied with the driving current alone, light of a first color temperature is generated by the photoluminescent layer 300; providing a driving current to a plurality of second light sources 212 connected in series, so as to generate light with a second color temperature through the photoluminescent layer 300; the first light source 211 and the second light source 212 are simultaneously supplied with driving currents, and the first light source 211 and the second light source 212 are post-mixed by the respective corresponding light emitting units 310 to form light of a third color temperature.
Alternatively, as shown in fig. 10 and 11, the plurality of accommodating regions 11 includes two first accommodating regions 111 and one second accommodating region 112, and the two first accommodating regions 111 are respectively disposed at two sides of the second accommodating region 112. The number of the second light sources 212 in the light source layer 200 is plural (e.g., 5 to 20), and the number of the first light sources 211 is two. The second light sources 212 are distributed in a row and disposed in the second receiving area 112. The two first light sources 211 are respectively disposed in a first accommodating area 111.
For example, the first light source 211 may have a rectangular structure, two first light sources 211 are disposed in parallel with the substrate 120 along the length direction, and a gap is formed between the two first light sources 211. A row of second light sources 212 is arranged in the interspace between the two first light sources 211. The number of the second light sources 212 may be six, and certainly in practical applications, the number of the second light sources 212 may also be other numbers, such as 5, 7, 8, 12, and the like, which is not specifically limited in this disclosure.
The two first light sources 211 are connected in series to form a first light source branch, the plurality of second light sources 212 are connected in series to form a second light source branch, and the first light source branch and the second light source 212 branch are connected in parallel. At this time, an equivalent circuit diagram of the flash lamp assembly provided by the embodiment of the present disclosure may be as shown in fig. 7. Wherein, R1 is the equivalent resistance of the first light source branch, R2 is the equivalent resistance of the second light source branch, and since R1 and R2 are different, when connected to the same power supply, the currents flowing through the first light source branch and the second light source 212 are different, so the luminance of the first light source 211 and the second light source 212 are different, and the light passes through different light emitting units 310 and then is mixed to form light with different color temperatures. When the input current is adjusted, the light emitting brightness of the first light source 211 and the second light source 212 is changed, and the converted color temperature through the light emitting unit 310 can also be changed.
Further, as shown in fig. 8, the flash lamp assembly provided in the embodiment of the present disclosure may further include a current limiting resistor, where the current limiting resistor is disposed in the second light source branch, and a resistance value of the current limiting resistor is greater than an equivalent resistor of the first light source branch.
The current-limiting resistor may be a fixed resistor or a variable resistor, and the resistance Rx of the current-limiting resistor may be 6-20 times the equivalent resistor of the first light source 211. The first light source branch and the second light source branch are connected to the same power supply, when the input current is small, the current flows through the first light source branch, the first light source 211 emits light, at the moment, the second light emitting unit hardly emits light, and the light emitted by the first light source 211 is first color temperature light after passing through the photoluminescent layer 300; when the input current increases, the first light source branch and the second light source branch both have current flowing through them, and the first light source 211 and the second light source 212 both emit light and are mixed to form third color temperature light after passing through the photoluminescent layer 300.
It is understood that the plurality of light sources 210 in the flashlight assembly provided by the embodiment of the present disclosure include a plurality of second light sources 212, the accommodating portion includes a plurality of accommodating areas 11, and each accommodating area 11 is provided with at least one second light source 212. The second light sources in each accommodating area are connected in series to form a light source branch, a plurality of light source branches are connected in parallel, and current limiting resistors are arranged in the parallel light source branches at intervals.
For example, the light source layer 300 may include two groups of light source groups, each group of light source groups includes three columns of the second light sources 212, the first and third columns of the second light sources 212 are connected in series to form a first light source branch, the second column of the second light sources 212 are connected in series to form a second light source branch, and the first light source branch and the second light source branch are connected in parallel.
Fig. 12 shows an equivalent circuit diagram of the flashlight assembly, wherein R1 is an equivalent resistance of a first light source branch in a group of light sources, R2 is an equivalent resistance of a second light source branch in the group of light sources, R3 is an equivalent resistance of a first light source branch in a group of light sources, and R4 is an equivalent resistance of a second light source branch in the group of light sources. The first light source branch in one light source group is connected in series with a current limiting resistor Rx1, and the first light source branch in the other light source group is connected in series with a current limiting resistor Rx 2. The two light source groups can be powered by the same power supply or by different power supplies. Of course, in practical applications, each light source branch may be independently powered, or each column of the second light sources 212 may be independently powered.
The photoluminescent layer 300 provided in the embodiment of the disclosure may be disposed on the light emitting side of the light source layer 200, the photoluminescent layer 300 may cover the light source layer 200, and the photoluminescent layer 300 may contact with the light emitting surface of the light source 210. The photoluminescent layer 300 may be disposed on the side of the board away from the substrate 120, or the photoluminescent layer 300 may be embedded in the frame of the baffle 130.
As shown in fig. 13, the photoluminescent layer 300 may include a bottom plate 301, a photoluminescent material layer 302, and a cover plate 303, the photoluminescent material layer 302 being disposed on a side of the bottom plate 301 away from the light source layer 200; the cover plate 303 is disposed on a side of the photoluminescent material layer 302 away from the base plate 301.
The bottom plate 301 may be made of a transparent material, for example, the bottom plate 301 may be a PMMA (polymethyl methacrylate) plate or a PC (polycarbonate) plate. The photoluminescent material layer 302 can be a phosphor layer, and the phosphor layer can be a phosphor and a colloid that are mixed to form a phosphor layer. Of course, in practical applications, the material of the photoluminescent material layer 302 may also be phosphor, and the embodiment of the disclosure is not limited thereto. The cover plate 303 may be made of a transparent material, for example, the cover plate 303 may be a PMMA (polymethyl methacrylate) plate, a PC (polycarbonate) plate, or a glass plate.
As shown in fig. 5 and 6, the plurality of light emitting units 310 may include a first light emitting unit 311 and a second light emitting unit 312, the first light emitting unit 311 is disposed on the light emitting side of the first light source 211, the first light emitting unit 311 is configured to receive light emitted by the first light source 211 and emit light of a first preset color temperature, and the first light emitting unit is disposed in a projection area of the first accommodating area on the light source layer; the second light emitting unit 312 is disposed on the light emitting side of the second light source 212, the second light emitting unit 312 is configured to receive the light emitted by the second light source 212 and emit light of a second preset color temperature, and the second light emitting unit 312 is disposed in a projection area of the second accommodating area on the light source layer.
The color temperature of the light emitted after the photoluminescence material layer 302 in the first light emitting unit 311 and the color temperature of the light emitted after the photoluminescence material layer 302 in the second light emitting unit 312 are excited are different. That is, the phosphor in the first light emitting unit 311 is different from the phosphor in the second light emitting unit 312. The phosphor is generally formed by mixing a plurality of phosphors with different dominant wavelengths, and the ratio of the phosphor in the first light emitting unit 311 is different from the ratio of the phosphor in the second light emitting unit 312.
For example, the color temperature of light emitted when the first light emitting unit 311 is excited may be 2000K to 4000K, the color temperature of light emitted when the second light emitting unit 312 is excited may be 6000K to 8000K, and light having a color temperature of 4000K to 6000K may be mixed by simultaneously exciting the first light emitting unit 311 and the second light emitting unit 312.
As shown in fig. 5, when the plurality of second light sources 212 are distributed in two rows, and the two rows of second light sources 212 are respectively located at two sides of the first light source 211, the photoluminescent layer 300 may include one first light-emitting unit 311 and two second light-emitting units 312. One first light emitting unit 311 is disposed in the first receiving area 111 in the projection area of the photoluminescent layer 300, and two second light emitting units 312 are disposed in the second receiving area 112 in the projection area of the photoluminescent layer 300. That is, the two second light emitting units 312 are located at two sides of the first light emitting unit 311, the first light emitting unit 311 is located above the first light source 211, and the second light emitting units 312 are respectively located above the corresponding second light sources 212.
For example, the first light emitting unit 311 and the second light emitting unit 312 may each have a rectangular structure, and the lengths of the long sides are equal. Two long sides of the first light emitting unit 311 are connected to one second light emitting unit 312, respectively.
The first light source branch and the second light source branch are connected to the same power supply, when the input current is small, the current flows through the first light source 211, the first light source 211 emits light, at this time, the second light emitting unit hardly emits light, and the light emitted by the first light source 211 is first color temperature light after passing through the first light emitting unit 311; when the input current increases, the currents flow through the first light source 211 and the second light source branches, light emitted by the first light source 211 passes through the first light emitting unit 311, and light emitted by the second light source 212 passes through the second light emitting unit 312 and is mixed into third color warm light. For example, the light having the color temperature of 4000K to 6000K may be obtained by simultaneously exciting the first light emitting unit 311 and the second light emitting unit 312 by the same power source and adjusting the driving current.
As shown in fig. 9 and 10, when the number of the second light sources 212 in the light source layer 200 is multiple, the number of the first light sources 211 is two, the multiple second light sources are distributed in a row, and the two first light sources 211 are respectively disposed at two sides of the row of the second light sources 212. The number of the first light emitting units 311 in the photoluminescent layer 300 is two, and the number of the second light emitting units 312 is one. The two first light emitting units 311 are respectively disposed in the projection areas of the first accommodating area 111 on the light source layer, and the second light emitting unit 312 is disposed in the projection area of the second accommodating area 212 on the light source layer.
For example, the first light emitting unit 311 and the second light emitting unit 312 may each have a rectangular structure, and the lengths of the long sides are equal. Two long sides of the second light emitting unit 312 are connected to one first light emitting unit 311, respectively.
The first light source branch and the second light source branch are connected to the same power supply, when the input current is small, the current flows through the first light source branch, the first light source branch emits light, at the moment, the second light emitting unit hardly emits light, and the light emitted by the first light source 211 is first color temperature light after passing through the first light emitting unit 311; when the input current increases, the currents flow through the first light source 211 and the second light source branches, light emitted by the first light source 211 passes through the first light emitting unit 311, and light emitted by the second light source 212 passes through the second light emitting unit 312 and is mixed into third color warm light. For example, the light having the color temperature of 4000K to 6000K may be obtained by simultaneously exciting the first light emitting unit 311 and the second light emitting unit 312 by the same power source and adjusting the driving current.
It is understood that the light source layer 200 may also include a plurality of second light sources 212, the accommodating portion 100 includes a plurality of accommodating areas 11, each accommodating area 11 is provided with at least one second light source 212, and on this basis, the photoluminescent layer 300 includes a plurality of light emitting units 310 with different luminescent color temperatures; each receiving area 11 is provided with a light emitting unit 310 in a projection area of the photoluminescent layer 300, and the light emitting color temperature of adjacent light emitting units 310 is different.
For example, the light source layer 200 includes six light source groups, the photoluminescent layer 300 may include six light emitting units 310, and the six light emitting units 310 may include four phosphor layers capable of exciting light rays with different color temperatures. The four light emitting units are arranged above the light source groups at intervals, each light source group corresponds to one light emitting unit, and the light emitting color temperatures of the adjacent light emitting units are different. For example, the light emitting units in the light source layer may be arranged in the order of a first color temperature light emitting unit, a second color temperature light emitting unit, a first color temperature light emitting unit, a third color temperature light emitting unit, a fourth color temperature light emitting unit, and a third color temperature light emitting unit. Each light source group includes a column of second light emitting cells.
In practical applications, the bottom plate 301 of the plurality of light emitting units 310 in the photoluminescent layer 300 may be the entire bottom plate 301, and different light emitting units 310 are formed by disposing phosphor layers with different excitation color temperatures in different regions of the bottom plate 301. Wherein a separation layer may be disposed between different light emitting cells 310, and the separation layer may be made of an opaque material to prevent light between adjacent light emitting cells 310 from affecting each other in the photoluminescent layer 300. The cover 303 of the plurality of light emitting units 310 may also be a whole cover 303 plate. Of course, in practical applications, the cover plate 303 and the bottom plate 301 may also be a split structure, and this is not specifically limited in this disclosure.
The light guide plate 400 is disposed on a side of the photoluminescent layer 300 away from the light source layer 200. A particle layer 410 is disposed on a side of the light guide plate 400 adjacent to the photoluminescent layer 300 to reduce scattering of the photoluminescent layer 300. The area of the light guide plate 400 is larger than that of the light emitting layer. The light guide plate 400 may be made of a transparent material, for example, the light guide plate 400 may be a PMMA plate or a PC plate. The light guide plate 400 may be attached to a rear cover of the electronic device, and a through hole may be provided on the rear cover of the electronic device, to which the light guide plate 400 may be attached.
The flash lamp assembly provided by the embodiment of the present disclosure converts light of the corresponding light source 210 into different color temperatures by having the light emitting unit 310 capable of outputting different color temperatures, so as to improve a color temperature range of the output light of the flash lamp, and facilitate improvement of an imaging effect of the electronic device in different environments. And the plurality of light sources 210 and the plurality of light emitting units 310 are integrated in one base 100, the size of the flash assembly can be effectively controlled, which is advantageous to save space of the electronic device.
The exemplary embodiments of the present disclosure also provide an electronic device, which may include the above-described flash assembly 10, as shown in fig. 14.
Further, the electronic device may further include a rear cover 50 having a flash hole, the flash assembly being disposed in the flash hole, and a decorative ring 60 disposed in the flash hole and surrounding the flash assembly.
The electronic devices provided by the exemplary embodiments of the present disclosure include, but are not limited to, mobile phones, tablet computers, personal digital assistants, in-vehicle computers, notebook computers, cameras, electronic book readers, smart wearable devices, and other devices having a flash light.
The following describes an electronic device provided in an embodiment of the present disclosure by taking the electronic device as a mobile phone as an example:
the electronic device may further include a middle frame 20, a main board 30, a display screen 70, a battery 40, and the like, where the display screen 70, the middle frame 20, and the rear cover 50 form an accommodating space for accommodating other electronic components or functional modules of the electronic device. Meanwhile, the display screen 70 forms a display surface of the electronic device for displaying information such as images, texts, and the like. The Display screen 70 may be a Liquid Crystal Display (LCD) or an organic light-Emitting Diode (OLED) Display screen.
A glass cover plate may be provided on the display screen 70. Wherein the glass cover plate may cover the display screen 70 to protect the display screen 70 from being scratched or damaged by water.
The display screen 70 may include a display area as well as a non-display area. Wherein the display area performs the display function of the display screen 70 for displaying information such as images, text, etc. The non-display area does not display information. The non-display area can be used for arranging functional modules such as a camera, a receiver, a proximity sensor and the like. In some embodiments, the non-display area may include at least one area located at an upper portion and a lower portion of the display area.
The display screen 70 may be a full-face screen. At this time, the display screen 70 may display information in full screen, so that the electronic device has a larger screen occupation ratio. The display screen 70 includes only display areas and no non-display areas.
The middle frame 20 may be a hollow frame structure. The material of the middle frame 20 may include metal or plastic. The main board 30 is mounted inside the receiving space. For example, the main board 30 may be mounted on the middle frame 20 and be received in the receiving space together with the middle frame 20. The main board 30 is provided with a grounding point to realize grounding of the main board 30.
One or more of the functional modules such as a motor, a microphone, a speaker, a receiver, an earphone interface, a universal serial bus interface (USB interface), a proximity sensor, an ambient light sensor, a gyroscope, and a processor may be integrated on the main board 30. Meanwhile, the display screen 70 may be electrically connected to the main board 30.
Wherein, the sensor module can include degree of depth sensor, pressure sensor, gyroscope sensor, baroceptor, magnetic sensor, acceleration sensor, distance sensor, be close optical sensor, fingerprint sensor, temperature sensor, touch sensor, ambient light sensor and bone conduction sensor etc.. The Processor may include an Application Processor (AP), a modem Processor, a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a controller, a video codec, a Digital Signal Processor (DSP), a baseband Processor, and/or a Neural Network Processor (NPU), and the like. The different processing units may be separate devices or may be integrated into one or more processors.
The main board 30 is also provided with a display control circuit. The display control circuit outputs an electrical signal to the display screen 70 to control the display screen 70 to display information. The light emitting control unit and the color change control unit may be provided on the main board.
The battery 40 is mounted inside the receiving space. For example, the battery 40 may be mounted on the middle frame 20 and be received in the receiving space together with the middle frame 20. The battery 40 may be electrically connected to the motherboard 30 to enable the battery 40 to power the electronic device. The main board 30 may be provided with a power management circuit. The power management circuit is used to distribute the voltage provided by the battery 40 to the various electronic components in the electronic device.
The rear cover 50 serves to form an outer contour of the electronic apparatus. The rear cover 50 may be integrally formed. In the forming process of the rear cover 50, a rear camera hole, a fingerprint identification module mounting hole and the like can be formed in the rear cover 50. The light emitting element may be provided in a housing, a main board, or a center frame in the rear cover 50. Wherein the rear camera hole and the flash lamp hole may share one hole or may be two independent holes. When the rear camera aperture and the flash aperture are separate apertures, the rear camera aperture may be adjacent to the flash aperture.
The electronic equipment provided by the embodiment of the disclosure can utilize the flash lamp component to convert light of a corresponding light source into different color temperatures through the light emitting unit capable of outputting different color temperatures, so that the color temperature range of the output light of the flash lamp is improved, and the improvement of the imaging effect of the electronic equipment in different environments is facilitated. And a plurality of light sources and a plurality of luminescence units are integrated in a base, can control the size of flash light subassembly effectively, are favorable to practicing thrift the space of electronic equipment.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
Claims (6)
1. A flash assembly, comprising:
the base is provided with an accommodating part with an opening;
the light source layer comprises a first light source and a second light source, the light emitting area of the second light source is smaller than that of the first light source, the light emitting surfaces of the light sources face the opening of the accommodating part, the accommodating part comprises a plurality of accommodating areas, the accommodating areas comprise a first accommodating area and a second accommodating area, the first accommodating area is provided with the first light source, and the second accommodating area is provided with the second light source;
the photoluminescent layer is arranged on the light emitting side of the light source layer and comprises a first luminescent unit and a second luminescent unit, the first luminescent unit is arranged in a projection area of the second accommodating area on the photoluminescent layer, the second luminescent unit is arranged in a projection area of the first accommodating area on the photoluminescent layer, and the luminescent color temperatures of the first luminescent unit and the second luminescent unit are different;
the light guide plate is arranged on one side, far away from the light source layer, of the photoluminescent layer, and a granular layer is arranged on one side, close to the photoluminescent layer, of the light guide plate and used for reducing dispersion of the photoluminescent layer;
the light source of the first accommodating area is connected in series to form a first light source branch, the light source of the second accommodating area is connected in series to form a second light source branch, the second light source branch is connected with a current limiting resistor, the first light source branch and the second light source branch are connected in parallel, the resistance value of the current limiting resistor is 6-20 times that of an equivalent resistor of the first light source branch, the first light source branch and the second light source branch are connected to the same power supply, when the input current is small, the current flows through the first light source branch, the first light source emits light, at the moment, the second light source hardly emits light, and the light emitted by the first light source is first color temperature light after passing through the photoluminescence layer; when the input current is increased, the first light source branch circuit and the second light source branch circuit are both provided with current flowing through, the first light source and the second light source emit light, and the light is mixed into third color warm light after passing through the photoluminescence layer.
2. The flash assembly of claim 1, wherein the first light source comprises an LED device and the second light source comprises a Micro LED device or a Nano LED device.
3. The flashlight assembly of claim 2, wherein the receiving portion includes one first receiving region and two second receiving regions, the two second receiving regions being located on opposite sides of the first receiving region.
4. The flashlight assembly of claim 2, wherein the receiving portion includes two first receiving areas and one second receiving area, the two first receiving areas being located on opposite sides of the second receiving area.
5. A flash lamp assembly as recited in claim 1, wherein the photoluminescent layer comprises:
a base plate;
the photoluminescence material layer is arranged on one side, far away from the light source layer, of the bottom plate;
the cover plate is arranged on one side, far away from the bottom plate, of the photoluminescence material layer.
6. An electronic device, characterized in that the electronic device comprises a flash assembly according to any one of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010968053.8A CN112034665B (en) | 2020-09-15 | 2020-09-15 | Flash lamp assembly and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010968053.8A CN112034665B (en) | 2020-09-15 | 2020-09-15 | Flash lamp assembly and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112034665A CN112034665A (en) | 2020-12-04 |
| CN112034665B true CN112034665B (en) | 2022-05-17 |
Family
ID=73590227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010968053.8A Active CN112034665B (en) | 2020-09-15 | 2020-09-15 | Flash lamp assembly and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112034665B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004309793A (en) * | 2003-04-07 | 2004-11-04 | Fuji Photo Film Co Ltd | Dimming device for strobe |
| JP2008129301A (en) * | 2006-11-21 | 2008-06-05 | Matsushita Electric Ind Co Ltd | Optical member, strobe device equipped with optical member and image recorder incorporating strobe device |
| CN103698027A (en) * | 2013-12-26 | 2014-04-02 | 青岛歌尔声学科技有限公司 | Temperature indication circuit and electronic product |
| JP2014145646A (en) * | 2013-01-29 | 2014-08-14 | Ihi Corp | Nuclear facility observation device and nuclear facility observation system |
| CN204515320U (en) * | 2015-04-14 | 2015-07-29 | 福州富莱仕影像器材有限公司 | A kind of LED flexible light |
| CN206672610U (en) * | 2017-05-02 | 2017-11-24 | 昆山龙腾光电有限公司 | A kind of LED backlight drive circuit, backlight module and liquid crystal display device |
| CN108828702A (en) * | 2018-06-06 | 2018-11-16 | Oppo广东移动通信有限公司 | Diffraction optical element, photoelectricity mould group, in-out box and electronic equipment |
| CN208691390U (en) * | 2018-08-28 | 2019-04-02 | 杭州海康威视数字技术股份有限公司 | A kind of supplementary lighting sources, light supplementing device of camera and video camera |
| CN110072088A (en) * | 2019-05-20 | 2019-07-30 | 湖南工程学院 | A kind of field campsite monitoring method |
| CN110531564A (en) * | 2019-07-30 | 2019-12-03 | 惠州Tcl移动通信有限公司 | Flashlight driving circuit and intelligent terminal |
| CN110646999A (en) * | 2019-09-06 | 2020-01-03 | 维沃移动通信有限公司 | Light source structure, electronic equipment, control method and device |
| CN110868510A (en) * | 2018-08-28 | 2020-03-06 | 杭州海康威视数字技术股份有限公司 | Camera light filling device and have its camera |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006081613A1 (en) * | 2005-02-02 | 2006-08-10 | Cap-Xx Limited | A power supply |
| CN102374496B (en) * | 2010-08-18 | 2015-03-25 | 晶元光电股份有限公司 | Multidimensional lighting device |
| US8845115B2 (en) * | 2012-02-16 | 2014-09-30 | Qualcomm Mems Technologies, Inc. | Flash illumination system |
| CN202486477U (en) * | 2012-03-14 | 2012-10-10 | 周耀波 | Photoflash for photography |
| JP2014052617A (en) * | 2012-08-08 | 2014-03-20 | Canon Inc | Light emission device, and driving method therefor |
| US9844113B2 (en) * | 2013-01-25 | 2017-12-12 | Dialog Semiconductor Inc. | Adjusting color temperature in a dimmable LED lighting system |
| CN204387754U (en) * | 2014-12-31 | 2015-06-10 | 四川新力光源股份有限公司 | A kind of LED dimmed light sources |
| CN104916627B (en) * | 2015-05-29 | 2019-05-03 | 鸿利智汇集团股份有限公司 | A kind of mobile phone photograph flash lamp |
| CN107870387A (en) * | 2016-09-28 | 2018-04-03 | 福建正德光电科技有限公司 | A kind of mixing material with guide-lighting performance |
| CN106678575A (en) * | 2017-02-28 | 2017-05-17 | 漳州立达信光电子科技有限公司 | Lamp device and light emitting module block |
| CN206525004U (en) * | 2017-02-28 | 2017-09-26 | 漳州立达信光电子科技有限公司 | A kind of circuit of LED of adjustable color temperature |
| CN106657752A (en) * | 2017-03-03 | 2017-05-10 | 上海传英信息技术有限公司 | Light filling apparatus and light filling method of front camera |
| US20180286841A1 (en) * | 2017-03-21 | 2018-10-04 | Light to Form LLC | Variable Resistance LED Device and Method |
| WO2019014145A1 (en) * | 2017-07-09 | 2019-01-17 | Lumenetix, Inc. | Full-spectrum flash for electronic devices |
| CN207992656U (en) * | 2018-01-26 | 2018-10-19 | 深圳市诚壹科技有限公司 | Flash lamp and mobile terminal |
| CN209642781U (en) * | 2019-05-09 | 2019-11-15 | Oppo广东移动通信有限公司 | Electronic equipment and flash lamp |
| CN110649041A (en) * | 2019-09-26 | 2020-01-03 | 维沃移动通信有限公司 | Light emitting module, electronic device, and method for controlling electronic device |
-
2020
- 2020-09-15 CN CN202010968053.8A patent/CN112034665B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004309793A (en) * | 2003-04-07 | 2004-11-04 | Fuji Photo Film Co Ltd | Dimming device for strobe |
| JP2008129301A (en) * | 2006-11-21 | 2008-06-05 | Matsushita Electric Ind Co Ltd | Optical member, strobe device equipped with optical member and image recorder incorporating strobe device |
| JP2014145646A (en) * | 2013-01-29 | 2014-08-14 | Ihi Corp | Nuclear facility observation device and nuclear facility observation system |
| CN103698027A (en) * | 2013-12-26 | 2014-04-02 | 青岛歌尔声学科技有限公司 | Temperature indication circuit and electronic product |
| CN204515320U (en) * | 2015-04-14 | 2015-07-29 | 福州富莱仕影像器材有限公司 | A kind of LED flexible light |
| CN206672610U (en) * | 2017-05-02 | 2017-11-24 | 昆山龙腾光电有限公司 | A kind of LED backlight drive circuit, backlight module and liquid crystal display device |
| CN108828702A (en) * | 2018-06-06 | 2018-11-16 | Oppo广东移动通信有限公司 | Diffraction optical element, photoelectricity mould group, in-out box and electronic equipment |
| CN208691390U (en) * | 2018-08-28 | 2019-04-02 | 杭州海康威视数字技术股份有限公司 | A kind of supplementary lighting sources, light supplementing device of camera and video camera |
| CN110868510A (en) * | 2018-08-28 | 2020-03-06 | 杭州海康威视数字技术股份有限公司 | Camera light filling device and have its camera |
| CN110072088A (en) * | 2019-05-20 | 2019-07-30 | 湖南工程学院 | A kind of field campsite monitoring method |
| CN110531564A (en) * | 2019-07-30 | 2019-12-03 | 惠州Tcl移动通信有限公司 | Flashlight driving circuit and intelligent terminal |
| CN110646999A (en) * | 2019-09-06 | 2020-01-03 | 维沃移动通信有限公司 | Light source structure, electronic equipment, control method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112034665A (en) | 2020-12-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101789139B1 (en) | Flexible Transparent LED Display of LED electro-optic panel and manufacturing method therefor | |
| WO2010058961A2 (en) | Light emitting apparatus and display apparatus using the same | |
| WO2017184406A1 (en) | Display with ambient-adaptive backlight color | |
| CN103629598A (en) | Backlight assembly and display apparatus having the same | |
| CN100388092C (en) | Heat radiation structure of backlight module | |
| CN114725272A (en) | Display device, light-emitting device, and illumination device | |
| KR102533666B1 (en) | Display panel and display apparatus having the same | |
| JP2008210691A (en) | Planar lighting system | |
| KR20190082683A (en) | Transparent LED display to display the video content on the transparent LED screen and output digital information | |
| CN112034665B (en) | Flash lamp assembly and electronic equipment | |
| KR20110030780A (en) | Drive ic and display device using thereof | |
| US10771157B2 (en) | Mobile terminal and method for receiving and sending a LIFI signal thereof | |
| KR101789142B1 (en) | LED billboard of flexible transparent film metal structure to be controlled by smart phone | |
| KR20050002566A (en) | Backlight for liquid crystal display device | |
| KR20150050011A (en) | the multidirectional lighting module for implementing multi colored and the electronic device having the same | |
| CN109743427A (en) | A kind of mobile terminal | |
| CN112987394B (en) | Display device | |
| CN100501808C (en) | Double side light emitting diode display | |
| CN209642781U (en) | Electronic equipment and flash lamp | |
| TWI616687B (en) | Optical diffusion article, and light emitting device, display device, and electronic device using the same | |
| KR20100057710A (en) | Light emitting diodes and backlight unit having the same | |
| CN201341256Y (en) | Backlight module and luminescent device thereof | |
| CN115704974B (en) | Display device | |
| CN214897377U (en) | Display device | |
| KR101833054B1 (en) | Module type transparent display board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |