CN220382486U - Parallel light source with large light spot - Google Patents
Parallel light source with large light spot Download PDFInfo
- Publication number
- CN220382486U CN220382486U CN202322075913.7U CN202322075913U CN220382486U CN 220382486 U CN220382486 U CN 220382486U CN 202322075913 U CN202322075913 U CN 202322075913U CN 220382486 U CN220382486 U CN 220382486U
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- Prior art keywords
- light
- chip
- bottom plate
- chip base
- packaging shell
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- 238000004806 packaging method and process Methods 0.000 claims abstract description 44
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 229910000679 solder Inorganic materials 0.000 claims description 11
- 239000011521 glass Substances 0.000 claims description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 5
- 238000005538 encapsulation Methods 0.000 claims description 4
- 239000000758 substrate Substances 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- WABPQHHGFIMREM-FTXFMUIASA-N lead-202 Chemical compound [202Pb] WABPQHHGFIMREM-FTXFMUIASA-N 0.000 description 1
- WABPQHHGFIMREM-AHCXROLUSA-N lead-203 Chemical compound [203Pb] WABPQHHGFIMREM-AHCXROLUSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Led Device Packages (AREA)
Abstract
The utility model discloses a parallel light source with large light spots, which comprises a light emitting chip (1), a chip base (2), a bottom plate (3), a shading packaging shell (4), a light transmitting window (5) and a lens (6); the light-emitting chip is arranged on the chip base, the chip base is arranged on the bottom plate, and the light-emitting chip, the chip base and the bottom plate are electrically connected; the bottom of the shading packaging shell is arranged on the chip base, a light transmission opening (401) is formed at the top of the shading packaging shell, the light transmission opening is positioned right above the light emitting chip, the light transmission window is arranged on the shading packaging shell and covers the light transmission opening, and the light emitting chip is packaged through the shading packaging shell, the light transmission window and the chip base to form an internal light source; a hollow groove (601) is formed at the lower part of the lens, the top of the lens is of a convex lens structure (602), and the bottom of the lens is arranged on the bottom plate, so that the convex lens structure is positioned right above the light transmission opening. The utility model can solve the problem that the lens and the light-emitting chip packaging structure in the prior art cannot meet the use scene of large light spots.
Description
Technical Field
The present utility model relates to a light source structure, and more particularly, to a parallel light source with a large light spot.
Background
The packaging structure of the light emitting chip and the lens can focus the light spots, so that a parallel light source with small light spots is generated, but the light spots of the parallel light source are smaller, and the use scene is limited greatly.
Chinese patent No. CN219226883U discloses a VCSEL light emitting device comprising a substrate, a VCSEL light emitting chip, a lens and a cavity structure. The light of the VCSEL light-emitting chip is refracted by the lens and then converged in the second optical focusing area to form micro light spots with energy converging, so that the use scene of the small light spots can be met, and the use requirement of the large light spots can not be met.
Therefore, it is necessary to provide a parallel light source with a large light spot, which can solve the problem that the lens and the light emitting chip package structure in the prior art cannot meet the use scene of the large light spot.
Disclosure of Invention
The utility model aims to provide a parallel light source with a large light spot, which can solve the problem that a lens and a light-emitting chip packaging structure in the prior art cannot meet the use scene of the large light spot.
The utility model is realized in the following way:
a parallel light source with large light spots comprises a light emitting chip, a chip base, a bottom plate, a shading packaging shell, a light transmitting window and a lens; the light-emitting chip is fixedly arranged on the chip base, the light-emitting chip is electrically connected with the chip base, the chip base is fixedly arranged on the bottom plate, and the light-emitting chip and the chip base are electrically connected with the bottom plate; the light shielding packaging shell is a hollow shell with an opening at the bottom, the bottom of the light shielding packaging shell is fixedly arranged on the chip base, a light transmission opening is formed at the top of the light shielding packaging shell and is positioned right above the light emitting chip, and the light transmission window is arranged on the light shielding packaging shell and covers the light transmission opening, so that the light emitting chip is packaged through the light shielding packaging shell, the light transmission window and the chip base to form an internal light source; the lower part of the lens is provided with a hollow groove, the top of the lens is of a convex lens structure, and the bottom of the lens is fixedly arranged on the bottom plate, so that the convex lens structure is positioned right above the light transmission opening.
The bottom of the shading packaging shell is outwards bent to form a first flange, the edge of the chip base is outwards extended to form a second flange, the first flange is fixedly connected to the top of the second flange, and the bottom of the second flange is fixed on the bottom plate.
The inner side wall of the shading packaging shell is attached to the outer side wall of the chip base, and the top inner wall of the shading packaging shell is attached to the top surface of the light-transmitting window.
The chip base is provided with a first pin, and the second pin penetrates through the bottom plate and is electrically connected with the bottom plate through a first solder point.
The chip base is provided with a second pin, an electrode on the light-emitting chip is electrically connected with one end of the second pin through a gold wire, and the other end of the second pin penetrates through the bottom plate and is electrically connected with the bottom plate through a second solder point.
The chip base is provided with a mounting groove which is of a trapezoid structure with a wide upper part and a narrow lower part, and the light-emitting chip is embedded in the mounting groove.
The chip base is a metal base, the shading packaging shell is a metal shell, and the light-transmitting window is transparent glass.
Compared with the prior art, the utility model has the following beneficial effects:
1. the utility model is provided with the shading packaging shell and the light-transmitting window, the shading packaging shell is directly arranged on the chip base and covers the light-emitting chip, the light-emitting chip is packaged into an internal light source structure, scattered light of the light-emitting chip is made to enter the bottom of the empty groove of the lens through the light-transmitting window and the light-transmitting opening at the top of the shading packaging shell, so that the scattered light is converged into parallel light through the convex lens structure and then transmitted upwards, and the formed parallel light has large light spots, so that various large light spot use scenes can be better met.
2. According to the utility model, the chip base is directly arranged on the bottom plate, the light-emitting chip is directly arranged on the chip base, the electrodes on the light-emitting chip are connected with the pins of the chip base to form electric connection, the pins of the internal light source are connected with the bottom plate through the metal solder points to form electric connection, the packaging process is simple, the structure is simple, the connection is reliable, and the cost is low.
Drawings
FIG. 1 is a cross-sectional view of a collimated light source of the present utility model having a large spot; in the figure, the arrow direction is the light direction.
In the figure, 1 light emitting chip, 101 gold wires, 2 chip bases, 201 second flanges, 202 first pins, 203 second pins, 204 mounting grooves, 3 bottom plates, 301 first solder points, 302 second solder points, 4 light shielding packaging shells, 401 light transmission openings, 402 first flanges, 5 light transmission windows, 6 lenses, 601 empty grooves and 602 convex lens structures.
Detailed Description
The utility model will be further described with reference to the drawings and the specific examples.
Referring to fig. 1, a parallel light source with large light spots includes a light emitting chip 1, a chip base 2, a bottom plate 3, a light shielding package 4, a light transmitting window 5 and a lens 6; the light-emitting chip 1 is fixedly arranged on the chip base 2 through conductive silver colloid, the light-emitting chip 1 is electrically connected with the chip base 2, the chip base 2 is fixedly arranged on the bottom plate 3, and the light-emitting chip 1 and the chip base 2 are electrically connected with the bottom plate 3; the light shielding packaging shell 4 is a hollow shell with an opening at the bottom, the bottom of the light shielding packaging shell 4 is fixedly arranged on the chip base 2, a light transmission opening 401 is formed at the top of the light shielding packaging shell 4, the light transmission opening 401 is positioned right above the light emitting chip 1, the light transmission window 5 is arranged on the light shielding packaging shell 4 and covers the light transmission opening 401, and the light emitting chip 1 is packaged through the light shielding packaging shell 4, the light transmission window 5 and the chip base 2 to form an internal light source; a hollow groove 601 is formed at the lower part of the lens 6, the top of the lens 6 is a convex lens structure 602, and the bottom of the lens 6 is fixedly arranged on the bottom plate 3, so that the convex lens structure 602 is positioned right above the light-transmitting opening 401.
The light emitting chip 1 generates scattered light upward, and the scattered light can be made to enter the top of the empty groove 601 of the lens 6 through the light transmitting opening 401 and the light transmitting window 5 by arranging the light transmitting opening 401 and the light transmitting window 5, so that the scattered light is converged into parallel light through the convex lens structure 602, and the parallel light is transmitted upward to form parallel light with large light spots.
The size of the light transmitting opening 401 can be adaptively manufactured according to the size requirement of the light spot, so as to ensure that the size of the light spot meets the use requirement. The size of the light-transmitting window 5 is made according to the size of the light-transmitting opening 401 to ensure complete covering of the light-transmitting opening 401, and the light-emitting chip 1 is packaged as an internal light source.
The bottom of the shading packaging shell 4 is bent outwards to form a first flange 402, the edge of the chip base 2 extends outwards to form a second flange 201, the first flange 402 is fixedly connected to the top of the second flange 201, and the bottom of the second flange 201 is fixed on the bottom plate 3.
The chip base 2 is directly installed on the bottom plate 3, the shading encapsulation shell 4 is directly installed on the chip base 2, and the encapsulation reliability and convenience of the chip base 2, the bottom plate 3 and the shading encapsulation shell 4 are guaranteed through the arrangement of the first flange 402 and the second flange 201.
The inner side wall of the shading packaging shell 4 is attached to the outer side wall of the chip base 2, and the top inner wall of the shading packaging shell 4 is attached to the top surface of the light-transmitting window 5.
The light shielding packaging shell 4 is made of opaque materials, can shield lateral light, and ensures that scattered light of the light emitting chip 1 is emitted to the lens 6 through the light transmitting window 5 and the light transmitting opening 401.
The chip base 2 is formed with a first pin 202, and the second pin 202 penetrates through the bottom plate 3 and is electrically connected with the bottom plate 3 through a first solder point 301, so that an electrical connection is formed between the chip base 2 and the bottom plate 3.
The chip base 2 is formed with a second pin 203, and an electrode (not shown in the figure) on the light emitting chip 1 is electrically connected with one end of the second pin 203 through a gold wire 101, and the other end of the second pin 203 penetrates through the bottom plate 3 and is electrically connected with the bottom plate 3 through a second solder point 302, so that the chip base 2, the bottom plate 3 and the light emitting chip 1 are electrically connected.
The chip base 2 is provided with a mounting groove 204, the mounting groove 204 is of a trapezoid structure with a wide upper part and a narrow lower part, and the light emitting chip 1 is embedded in the mounting groove 204.
The mounting groove 204 is convenient for ensuring the mounting of the light-emitting chip 1 on the chip base 2, and is also beneficial for converging the scattered light of the light-emitting chip 1 onto the lens 6.
The chip base 2 is a metal base, the shading packaging shell 4 is a metal shell, and the light-transmitting window 5 is transparent glass.
The chip base 2 and the light shielding packaging shell 4 are light-tight, and scattered light of the light emitting chip 1 is only incident to the bottom of the empty groove 601 of the lens 6 through the light-transmitting window 5 and the light-transmitting opening 401.
Referring to fig. 1, the manufacturing method of the present utility model comprises:
the light emitting chip 1 is fixed on the chip base 2 made of metal through conductive silver adhesive, and an electrode on the light emitting chip 1 is connected with one end of the second pin 203 of the chip base 2 made of metal through a gold wire 101 to form electrical connection.
The transparent window 5 of transparent glass is welded on the light-transmitting opening 401 at the top of the light-shielding packaging shell 4 made of metal materials to form a pipe cap structure. The bottom of the tube cap structure is welded with the second flange 201 of the chip base 2 made of metal through the first flange 402, and the light-emitting chip 1 is packaged in a space formed by the light-transmitting window 5, the shading packaging shell 4 and the chip base 2 to form an internal light source.
The first lead 202 and the second lead 203 are connected to the substrate 3 through a first solder point 301 and a second solder point 302 made of metal, respectively, so that electrical connection is formed among the light emitting chip 1, the chip base 2 and the substrate 3. The lens 6 is glued with the bottom plate 3 so that the internal light source is located in the empty groove 601, and the convex lens structure 602, the light-transmitting opening 401, the light-transmitting window 5 and the light-emitting chip 1 are sequentially arranged from top to bottom.
Referring to fig. 1, the working principle of the utility model is as follows:
the light emitting chip 1 generates scattered light upward, the scattered light is incident to the lower surface of the lens 6 through the light transmitting window 5 and the glass window of the light transmitting opening 401, the convex lens structure 602 converges the scattered light into parallel light with large light spots, and the parallel light is transmitted upward.
The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model should be included in the scope of the present utility model.
Claims (7)
1. A parallel light source with large light spots is characterized in that: the LED chip comprises a light-emitting chip (1), a chip base (2), a bottom plate (3), a shading packaging shell (4), a light-transmitting window (5) and a lens (6); the light-emitting chip (1) is fixedly arranged on the chip base (2), the light-emitting chip (1) is electrically connected with the chip base (2), the chip base (2) is fixedly arranged on the bottom plate (3), and the light-emitting chip (1) and the chip base (2) are electrically connected with the bottom plate (3); the light shielding packaging shell (4) is a hollow shell with an opening at the bottom, the bottom of the light shielding packaging shell (4) is fixedly arranged on the chip base (2), a light transmission opening (401) is formed in the top of the light shielding packaging shell (4), the light transmission opening (401) is positioned right above the light emitting chip (1), and the light transmission window (5) is arranged on the light shielding packaging shell (4) and covers the light transmission opening (401), so that the light emitting chip (1) is packaged through the light shielding packaging shell (4), the light transmission window (5) and the chip base (2) to form an internal light source; a hollow groove (601) is formed at the lower part of the lens (6), the top of the lens (6) is of a convex lens structure (602), and the bottom of the lens (6) is fixedly arranged on the bottom plate (3) so that the convex lens structure (602) is positioned right above the light-transmitting opening (401).
2. The collimated light source with a large spot according to claim 1, wherein: the bottom of shading encapsulation shell (4) outwards buckles and forms first flange (402), and the edge of chip base (2) outwards extends and forms second flange (201), and first flange (402) fixed connection is at the top of second flange (201), and the bottom of second flange (201) is fixed on bottom plate (3).
3. The parallel light source with large light spots according to claim 1 or 2, characterized in that: the inner side wall of the shading packaging shell (4) is attached to the outer side wall of the chip base (2), and the top inner wall of the shading packaging shell (4) is attached to the top surface of the light-transmitting window (5).
4. The parallel light source with large light spots according to claim 1 or 2, characterized in that: the chip base (2) is provided with a first pin (202), and the first pin (202) penetrates through the bottom plate (3) and is electrically connected with the bottom plate (3) through a first solder point (301).
5. The collimated light source with a large spot according to claim 4, wherein: the chip base (2) is provided with a second pin (203), an electrode on the light-emitting chip (1) is electrically connected with one end of the second pin (203) through a gold wire (101), and the other end of the second pin (203) penetrates through the bottom plate (3) and is electrically connected with the bottom plate (3) through a second solder point (302).
6. The collimated light source with a large spot according to claim 1, 2 or 5, characterized in that: the chip base (2) is provided with a mounting groove (204), the mounting groove (204) is of a trapezoid structure with a wide upper part and a narrow lower part, and the light-emitting chip (1) is embedded in the mounting groove (204).
7. The collimated light source with a large spot according to claim 1, wherein: the chip base (2) is a metal base, the shading packaging shell (4) is a metal shell, and the light-transmitting window (5) is transparent glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322075913.7U CN220382486U (en) | 2023-08-03 | 2023-08-03 | Parallel light source with large light spot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322075913.7U CN220382486U (en) | 2023-08-03 | 2023-08-03 | Parallel light source with large light spot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220382486U true CN220382486U (en) | 2024-01-23 |
Family
ID=89561976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322075913.7U Active CN220382486U (en) | 2023-08-03 | 2023-08-03 | Parallel light source with large light spot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220382486U (en) |
-
2023
- 2023-08-03 CN CN202322075913.7U patent/CN220382486U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |