CN218037415U - Photoelectric detection light-gathering structure - Google Patents
Photoelectric detection light-gathering structure Download PDFInfo
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- CN218037415U CN218037415U CN202221472812.2U CN202221472812U CN218037415U CN 218037415 U CN218037415 U CN 218037415U CN 202221472812 U CN202221472812 U CN 202221472812U CN 218037415 U CN218037415 U CN 218037415U
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Abstract
The utility model discloses a photoelectric detection spotlight structure, include: the inner side surface of the cup opening of the light reflecting cup is a light reflecting surface; the detector chip is arranged on the focus of the reflecting cup or close to the focus, and the photosensitive surface of the detector chip faces the cup opening direction of the reflecting cup. The utility model discloses, because the photosensitive surface of detector chip is located anti-light cup's focus position or near, when surveying, can utilize anti-light cup gathering light to the photosensitive surface of detector chip to improve the detection performance of detector chip. Compared with the traditional lens structure, the lens structure has the advantages that light rays are converged by the aid of the reflection cup, and manufacturing difficulty and production cost are reduced.
Description
Technical Field
The utility model relates to a photoelectric detection technical field, in particular to photoelectric detection spotlight structure.
Background
The visible light detector can be used for measurement and detection, industrial automatic control, photometric measurement and the like; the infrared detector can be used for flame detection, infrared thermal imaging, infrared remote sensing and the like; the ultraviolet detection technology can be used for secret communication, missile early warning, environment monitoring, flame detection and the like.
How to improve the capability of collecting optical signals by a photoelectric detector, especially for a weak signal detection system, is a concern, and besides improving the performance of the detector through material or device structural design, it is also important to reasonably design a practical device packaging structure. According to the current report, the detector mostly adopts a lens structure (such as a convex lens) to condense light, so that the optical signal is focused on the photosensitive surface of the detection chip. The lens structure has high manufacturing process requirement and high cost.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a photoelectric detection spotlight structure need not lens and can realize spotlight, and is with low costs.
According to the utility model discloses photoelectric detection spotlight structure, include: the inner side surface of the cup opening of the light reflecting cup is a light reflecting surface; the detector chip is arranged on the focus of the reflecting cup or close to the focus, and the photosensitive surface of the detector chip faces the cup opening direction of the reflecting cup.
According to the utility model discloses photoelectric detection spotlight structure has following beneficial effect at least:
adopt above-mentioned structure to set up the utility model discloses, because the photosensitive surface of detector chip is located anti-light cup's focus position or near, when surveying, can utilize anti-light cup gathering light to the photosensitive surface of detector chip on to improve the detection performance of detector chip. Compared with the traditional lens structure, the lens structure has the advantages that light rays are converged by the aid of the reflection cup, and manufacturing difficulty and production cost are reduced. And the traditional reflection cup is usually used for being matched with a point light source to reflect and send out light, so that the long-distance light-gathering illumination effect is realized. The utility model discloses utilize anti-light cup to come reverse gathering light, simple structure, low cost to compact structure has very strong practicality.
According to the utility model discloses a some embodiments, photoelectric detection spotlight structure still includes the base, the base sets up the bottom of anti-light cup, detector chip sets up on the base.
According to some embodiments of the present invention, the detector chip is one or more of an infrared detector chip, a visible light detector chip, and an ultraviolet detector chip.
According to some embodiments of the present invention, the reflecting surface of the reflecting cup is any one of a spherical surface, an aspherical surface, and a free-form surface.
According to some embodiments of the invention, the reflective cup is a structure made of metal, plastic or glass.
According to some embodiments of the present invention, the reflective cup is a structure made of plastic, and the reflective surface of the reflective cup has a metal plating layer.
According to some embodiments of the invention, the metal coating is any one of chromium, nickel, aluminum, gold, silver.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further described with reference to the following figures and examples, in which:
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of a shaft side structure of the present invention.
In the figure: 1-a base; 2-a detector chip; 3-a light reflecting cup.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper and lower directions, is the orientation or positional relationship shown on the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore should not be construed as limiting the present invention.
In the description of the present invention, a plurality means two or more. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1 and 2, the utility model relates to a photodetection spotlight structure of embodiment, include: the inner side surface of the cup mouth of the light reflecting cup 3 is a light reflecting surface; the detector chip 2 is arranged on the focus of the reflective cup 3 or at a position close to the focus, and the photosensitive surface of the detector chip 2 faces the cup opening direction of the reflective cup 3.
Adopt above-mentioned structure to set up the utility model discloses, because the photosensitive surface of detector chip 2 is located anti-light cup 3's focus position or near, when surveying, can utilize anti-light cup 3 gathering light to detector chip 2's photosensitive surface to improve detector chip 2's detection performance. Compared with the traditional lens structure, the light is converged by the reflection cup 3, so that the manufacturing difficulty and the production cost are reduced. And the traditional reflection cup 3 is usually used for being matched with a point light source to reflect and send out light, so that the long-distance light-gathering illumination effect is realized. The utility model discloses utilize anti-light cup 3 to come reverse gathering light, simple structure, low cost to compact structure has very strong practicality.
In some embodiments, the photodetection light-gathering structure further includes a base 1, the base 1 is disposed at the bottom of the reflective cup 3, and the detector chip 2 is disposed on the base 1. The three can be fixed by encapsulation or in other forms. The fixed base body of detector chip 2 and anti-light cup 3 is formed through the setting of base 1 to this embodiment, makes things convenient for whole photoelectric detection spotlight structure installation, application.
In some embodiments, the detector chip 2 is one or more of an infrared detector chip 2, a visible light detector chip 2, and an ultraviolet detector chip 2. Any kind of above-mentioned detector chip 2 homoenergetic is applied to the utility model provides a photoelectric detection spotlight structure utilizes anti-light cup 3 to improve photosensitive detection performance.
It can be understood that the utility model provides a reflection surface of anti-light cup 3 only need with light assemble to detector chip 2 photosensitive surface position can, consequently can set up to any one in sphere, aspheric surface, the free curved surface.
In some embodiments, the reflective cup 3 is a metal structure, and the light reflection and convergence are realized by using the self-performance of the metal material.
In some embodiments, the reflective cup 3 is a plastic structure, and a metal coating is disposed on the reflective surface thereof, so as to reflect and collect light. The metal material of the metal coating is any one of chromium, nickel, aluminum, gold and silver, so that the reflecting surface of the metal coating is a bright metal surface.
In some embodiments, the reflector cup 3 is of a glass structure.
In some embodiments, the photodetection light-gathering structure includes a base 1, a photodiode, and a reflector cup 3. The photo-surface size of the photodiode was 0.7 x 0.7mm. The reflecting surface of the reflecting cup 3 is a paraboloid with the focal length of 0.65mm, the inner diameter of the cup mouth is 7.67mm, the inner diameter of the cup bottom is 2.6mm, the material is aluminum, and the reflectivity is 90%. The light gathering effect is simulated by LightTools software, a surface light source with the diameter of 10mm and the power of 1mW is set, and light is emitted from the direction vertical to the photosensitive surface of the photodiode. Through simulation analysis, under the condition that the light reflecting cup 3 is not additionally arranged, the total received radiation power of the photodiode is 0.00622mW, and the total received radiation power when the light reflecting cup 3 is additionally arranged is 0.473mW.
In some embodiments, the photodetection light-gathering structure includes a base 1, a photodiode, and a reflector cup 3. The diameter of the photosensitive surface of the photodiode is 1mm. The reflecting surface of the reflecting cup 3 is a paraboloid with the focal length of 0.65mm, the inner diameter of the cup mouth is 7.67mm, the inner diameter of the cup bottom is 2.6mm, the material is aluminum, and the reflectivity is 90%. The light gathering effect is simulated by LightTools software, a surface light source with the diameter of 10mm and the power of 1mW is set, and light is emitted from the direction vertical to the photosensitive surface of the photodiode. Through simulation analysis, the total radiation power received by the photodiode under the condition that the reflector cup 3 is not additionally arranged is 0.0102mW, and the total radiation power received when the reflector cup 3 is additionally arranged is 0.478mW.
In some embodiments, the photodetection light-gathering structure includes a base 1, a photodiode, and a reflector cup 3. The diameter of the photosensitive surface of the photodiode is 1mm. The reflecting surface of the reflecting cup 3 is a paraboloid with the focal length of 0.65mm, the inner diameter of the cup mouth is 9.48mm, the inner diameter of the cup bottom is 2.6mm, the material is aluminum, and the reflectivity is 90%. The light gathering effect is simulated by LightTools software, a surface light source with the diameter of 10mm and the power of 1mW is set, and light is emitted from the direction vertical to the photosensitive surface of the photodiode. Simulation analysis shows that the total radiation power received by the photodiode is 0.0102mW under the condition that the reflector 3 is not additionally arranged, and the total radiation power received when the reflector 3 is additionally arranged is 0.759mW.
To sum up, the utility model provides a photoelectric detection spotlight structure's simple structure is simple and easy, can design according to the light of concrete application scene for the light of 3 bore within ranges of anti-light cup can effectively assemble on detector chip 2's photosensitive surface, thereby improves detector chip 2's response performance, and the cost is lower, is applicable to mass production.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (7)
1. Photoelectric detection light-gathering structure, its characterized in that includes:
the inner side surface of the cup opening of the light reflecting cup is a light reflecting surface;
the detector chip is arranged on the focus of the reflection cup or close to the focus, and the photosensitive surface of the detector chip faces the cup opening direction of the reflection cup.
2. The photodetection light-focusing structure according to claim 1, further comprising a base, wherein the base is disposed at the bottom of the light-reflecting cup, and the detector chip is disposed on the base.
3. The photodetection light concentrating structure according to claim 1 or 2, wherein the detector chip is one or more of an infrared detector chip, a visible light detector chip, and an ultraviolet detector chip.
4. The photodetection light-condensing structure according to claim 1 or 2, characterized in that the reflecting surface of the light-reflecting cup is any one of a spherical surface, an aspherical surface, and a free-form surface.
5. The photodetecting light-condensing structure according to claim 1 or 2, characterized in that the light-reflecting cup is a structure made of metal, plastic or glass.
6. The photodetecting light-condensing structure according to claim 1 or 2, characterized in that the light-reflecting cup is a structure made of plastic, and the light-reflecting surface of the light-reflecting cup has a metal plating layer.
7. The photodetection light-collecting structure according to claim 6, characterized in that the metal plating layer is any one of chromium, nickel, aluminum, gold, silver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221472812.2U CN218037415U (en) | 2022-06-13 | 2022-06-13 | Photoelectric detection light-gathering structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221472812.2U CN218037415U (en) | 2022-06-13 | 2022-06-13 | Photoelectric detection light-gathering structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218037415U true CN218037415U (en) | 2022-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221472812.2U Active CN218037415U (en) | 2022-06-13 | 2022-06-13 | Photoelectric detection light-gathering structure |
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| Country | Link |
|---|---|
| CN (1) | CN218037415U (en) |
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2022
- 2022-06-13 CN CN202221472812.2U patent/CN218037415U/en active Active
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