CN114764024A - Luminance meter - Google Patents
Luminance meter Download PDFInfo
- Publication number
- CN114764024A CN114764024A CN202110040962.XA CN202110040962A CN114764024A CN 114764024 A CN114764024 A CN 114764024A CN 202110040962 A CN202110040962 A CN 202110040962A CN 114764024 A CN114764024 A CN 114764024A
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- CN
- China
- Prior art keywords
- light receiving
- luminance meter
- light
- sensing device
- receiving element
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- 230000003287 optical effect Effects 0.000 claims description 31
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 27
- 238000010586 diagram Methods 0.000 description 9
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/02—Details
- G01J1/04—Optical or mechanical part supplementary adjustable parts
- G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
- G01J1/0422—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings using light concentrators, collectors or condensers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The invention provides a luminance meter. The luminance meter includes a sensing device, a connecting device and a light receiving device. The connecting element is connected with the sensing device and is provided with a through hole. The light receiving element is removably sleeved on the connecting element and used for collecting light rays, so that the light rays penetrate through the through hole to the sensing device for luminance sensing. Therefore, the light receiving element can be installed or removed according to the measurement requirement, so as to effectively receive light and perform brightness sensing.
Description
Technical Field
The invention relates to an optical measurer, in particular to a luminance meter.
Background
Luminance meters are often used for optical measurements, such as measuring the light emitting diodes of a backlight module. Generally, the luminance meter receives light from the light source and then enters the sensor when measuring the light source, but the light path and the structure of the luminance meter are fixed when the luminance meter is shipped.
Specifically, the luminance meter performs intensity correction on a standard light source before shipment, corrects the difference between the spectrum of each wavelength of the standard light source and the spectrum of each wavelength sensed by the sensor, stores the corrected wavelength difference value in a memory of the luminance meter, and performs calculation on the wavelength difference value in subsequent measurement.
However, when the light source to be measured changes or exceeds the luminance specification of the luminance meter itself, the conventional luminance meter must increase the optical lens and adjust the operation ratio according to the measurement data, which is not only not accurate enough, but also increases the measurement trouble. Although different light sources can be handled by a plurality of different luminance meters, the cost of purchasing the equipment is also increased.
Therefore, how to develop a luminance meter capable of effectively solving the problems and disadvantages of the prior art is a problem that is yet to be solved.
Disclosure of Invention
It is a primary object of the present invention to provide a luminance meter that solves and ameliorates the above-mentioned problems and disadvantages of the prior art.
Another objective of the present invention is to provide a luminance meter, wherein the light receiving element is removably sleeved on the connecting element, and the light receiving element can be installed or removed according to the measurement requirement, so as to effectively receive light and perform luminance sensing.
Another objective of the present invention is to provide a luminance meter, which can perform measurement immediately corresponding to a light source to be measured by selecting an optical lens and having a characteristic that a light receiving opening of a light receiving element has different diameters, and does not need to perform additional manual calculation after measurement, thereby not only being capable of performing accurate measurement and reducing the measurement trouble, but also greatly reducing the measurement cost.
To achieve the above object, a preferred embodiment of the present invention provides a luminance meter, including: a sensing device; a connecting element connected with the sensing device, wherein the connecting element is provided with a through hole; and a light receiving element removably sleeved on the connecting element for collecting light rays, so that the light rays penetrate through the through hole to the sensing device for luminance sensing.
To achieve the above object, a preferred embodiment of the present invention provides a luminance meter, including: a sensing device; a connecting element connected with the sensing device; the first light receiving element is provided with a first light receiving port, wherein the diameter of the first light receiving port is constant from outside to inside; a second light receiving element having a second light receiving opening, wherein the diameter of the second light receiving opening is gradually decreased from outside to inside; and a third light receiving element having a third light receiving opening, wherein the diameter of the third light receiving opening increases from outside to inside; the first light receiving element, the second light receiving element and the third light receiving element are sleeved on the connecting element corresponding to a light source to be detected, and are used for collecting light and enabling the light to penetrate into the sensing device for luminance sensing.
The luminance meter has the beneficial effects that the luminance meter is removably sleeved on the connecting element through the light receiving element, and the light receiving element can be installed or removed according to the measurement requirement so as to effectively receive light and perform luminance sensing. Furthermore, the optical lens is selected and the light receiving opening of the light receiving element has the characteristics of different diameters, so that the light source to be measured can be immediately measured, manual calculation is not needed to be additionally performed after measurement, accurate measurement can be achieved, measuring troubles are reduced, and the cost required by measurement can be greatly reduced.
Drawings
Fig. 1 is a schematic structural diagram of a luminance meter according to an embodiment of the present invention.
Fig. 2 is an exploded view of a luminance meter according to an embodiment of the present invention.
FIG. 3 is a cross-sectional view A-A of the luminance meter shown in FIG. 1.
Fig. 4 is a schematic structural diagram of a luminance meter according to an embodiment of the invention.
Fig. 5 is a schematic structural diagram of a luminance meter according to an embodiment of the invention.
Fig. 6 is a schematic structural diagram of a luminance meter according to an embodiment of the present invention.
The reference numbers are as follows:
1: luminance meter
11: sensing device
111: first screw part
12: connecting element
120: piercing of holes
121: groove
122: side wall
123: second screw-coupling part
13: light collecting element
131: nesting part
132: light-receiving port
14: optical lens
2: luminance meter
21: sensing device
22: connecting element
23: first light receiving element
231: first light receiving port
24: second light receiving element
241: second light receiving port
25: third light receiving element
251: third light-receiving port
26: first optical lens
27: second optical lens
A-A: section line
Detailed Description
Some exemplary embodiments that embody features and advantages of the invention will be described in detail in the description that follows. As will be realized, the invention is capable of other and different modifications and its several details are capable of modifications in various obvious respects, all without departing from the scope of the invention, and the description and drawings are to be regarded as illustrative in nature, and not as restrictive.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a luminance meter according to an embodiment of the present invention, and fig. 2 is an exploded structural diagram of the luminance meter according to an embodiment of the present invention. As shown in fig. 1 and fig. 2, the luminance meter according to an embodiment of the present invention includes a sensing device 11, a connecting element 12, and a light receiving element 13. The connecting element 12 is connected with the sensing device 11, and the connecting element 12 has a through hole 120. The light receiving element 13 is removably sleeved on the connecting element 12 for collecting light, so that the light penetrates through the through hole 120 into the sensing device 11 for brightness sensing. Therefore, the light receiving element can be installed or removed according to the measurement requirement, so as to effectively receive light and perform brightness sensing.
In some embodiments, the connecting element 12 may be, for example, but not limited to, an adapter ring, and further has a groove 121, and the through hole 120 extends through the groove 121. Further, the luminance meter 1 further includes an optical lens 14, and the optical lens 14 is disposed in the groove 121. According to the present invention, the optical lens 14 can be an attenuating plate, a diffusing plate, or the like to cope with different light sources to be measured. Of course, the optical lens 14 may be a lens or lens with other optical characteristics as required.
Referring to fig. 2 and 3, fig. 3 is a cross-sectional view a-a of the luminance meter shown in fig. 1. As shown in fig. 2 and 3, the sensing device 11 of the luminance meter 1 of the present invention includes a first screw portion 111, and the connecting element 12 includes a second screw portion 123. The second screwing portion 123 is adjacent to the sensing device 11 relative to the groove 121, the first screwing portion 111 and the second screwing portion 123 are matched and screwed with each other, and the through hole 120 penetrates through the second screwing portion 123.
Further, the connecting element 12 has a sidewall 122, and the sidewall 122 is disposed around the groove 121, i.e. the sidewall 122 is formed at the periphery of the groove 121. In addition, the light receiving element 13 includes a sleeve portion 131 and a light receiving opening 132, and the light receiving opening 132 is connected to the sleeve portion 131. The engaging portion 131 is disposed on the sidewall 122 and partially contacts the optical lens 14 to fix the optical lens 14. In some embodiments, the light receiving element 13 is made of rubber, but not limited thereto. With the structure of the luminance meter 1 of the present invention, the light receiving element 13 can be easily installed or removed to facilitate the user to replace the required optical lens, and the light receiving opening 132 of the light receiving element 13 can also have various designs according to specific requirements.
Referring to fig. 2, fig. 4 and fig. 5, fig. 4 is a schematic structural diagram of a luminance meter according to an embodiment of the invention, and fig. 5 is a schematic structural diagram of a luminance meter according to an embodiment of the invention. In some embodiments, the diameter of the light receiving opening 132 of the light receiving element 13 of the luminance meter 1 of the present invention from the side of the light receiving opening 132 away from the engaging portion 131 to the other side adjacent to the engaging portion 131 may be gradually decreased from outside to inside as shown in fig. 2, or constant from outside to inside as shown in fig. 4, or gradually increased from outside to inside as shown in fig. 5, so as to correspond to different light sources to be measured, and increase or decrease the light receiving range, so that the luminance meter 1 of the present invention can be applied to measure the luminance of various light sources.
In some embodiments, the present invention further provides a luminance meter configured with a plurality of light receiving elements and/or optical lenses. Please refer to fig. 6, which is a schematic structural diagram of a luminance meter according to an embodiment of the present invention. As shown in fig. 6, the luminance meter 2 according to an embodiment of the present invention includes a sensing device 21, a connecting element 22, a first light receiving element 23, a second light receiving element 24, and a third light receiving element 25. Wherein the connecting element 22 is connected with the sensing device 21. The first light receiving element 23 has a first light receiving opening 231, and the diameter of the first light receiving opening 231 is constant from outside to inside. The second light receiving element 24 has a second light receiving opening 241, and the diameter of the second light receiving opening 241 decreases gradually from outside to inside. The third light receiving element 25 has a third light receiving opening 251, and the diameter of the third light receiving opening 251 increases from outside to inside. The first light receiving element 23, the second light receiving element 24 and the third light receiving element 25 are mounted on the connecting element 22 corresponding to the light source to be detected, and are used for collecting light and transmitting the light into the sensing device 21 for brightness sensing. In other words, the luminance meter 2 of the present invention can be a product providing at least three light receiving elements, and a user can select an appropriate light receiving element from the first light receiving element 23, the second light receiving element 24 and the third light receiving element 25 to be mounted on the connecting element 22 for luminance measurement according to the measurement requirement required by the user.
In some embodiments, the luminance meter 2 of the present invention further comprises a first optical lens 26 and a second optical lens 27, wherein the first optical lens 26 may be, but not limited to, an attenuating plate, a diffusing plate, a convex lens, a concave lens or a planar lens, and the second optical lens 27 may be, but not limited to, an attenuating plate, a diffusing plate, a convex lens, a concave lens or a planar lens. It should be noted that the first optical lens 26 and the second optical lens 27 of the luminance meter 2 provided by the present invention are different optical lenses, so as to provide the user with the option of corresponding to different light sources to be measured. In other words, the optical lens is selected and the light receiving opening of the light receiving element has the characteristics of different diameters, so that the light source to be measured can be immediately measured, and no extra manual calculation is needed after the measurement, so that the measurement can be accurately performed, the measurement trouble is reduced, and the required measurement cost can be greatly reduced.
In summary, the present invention provides a luminance meter, in which the light receiving element is removably sleeved on the connecting element, and the light receiving element can be installed or removed according to the measurement requirement, so as to effectively receive light and perform luminance sensing. Furthermore, the optical lens is selected and used, the light receiving opening of the light receiving element has the characteristics of different diameters, the light source to be measured can be immediately measured, manual calculation is not needed to be additionally carried out after measurement, accurate measurement can be achieved, the measurement trouble is reduced, and the required measurement cost can be greatly reduced.
Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to one skilled in the art that various modifications can be made without departing from the scope of the invention as defined in the appended claims.
Claims (10)
1. A luminance meter comprising:
a sensing device;
a connecting element connected with the sensing device, wherein the connecting element is provided with a through hole; and
a light receiving element removably sleeved on the connecting element for collecting light rays, so that the light rays penetrate through the through hole to the sensing device for brightness sensing.
2. The luminance meter as in claim 1, wherein the connecting element further has a groove, and the through hole penetrates through the groove.
3. The luminance meter as in claim 2, further comprising an optical lens, wherein the optical lens is disposed within the groove.
4. The luminance meter as in claim 3, wherein the connecting element further has a sidewall, and the sidewall is disposed around the groove.
5. The luminance meter as in claim 4, wherein the light collecting element comprises a sleeve portion, and the sleeve portion is sleeved on the sidewall and partially contacts with the optical lens to fix the optical lens.
6. The luminance meter as in claim 5, wherein the light receiving element further comprises a light receiving opening, and the light receiving opening is connected to the engaging portion.
7. The luminance meter as recited in claim 6, wherein the diameter of the light-receiving opening is gradually increased, constant or gradually decreased from a side away from the engaging portion to another side adjacent to the engaging portion.
8. The luminance meter as in claim 3, wherein the optical lens is an attenuating or diffusing sheet.
9. The luminance meter as in claim 2, wherein the sensing device comprises a first threaded portion, the connecting element comprises a second threaded portion adjacent to the sensing device relative to the recess, the first threaded portion and the second threaded portion are threaded with each other, and the through hole penetrates through the second threaded portion.
10. A luminance meter comprising:
a sensing device;
a connecting element connected with the sensing device;
the first light receiving element is provided with a first light receiving port, wherein the diameter of the first light receiving port is constant from outside to inside;
a second light receiving element having a second light receiving opening, wherein the diameter of the second light receiving opening is gradually decreased from outside to inside; and
a third light receiving element having a third light receiving opening, wherein the diameter of the third light receiving opening increases from outside to inside;
the first light receiving element, the second light receiving element and the third light receiving element are sleeved on the connecting element corresponding to a light source to be detected, and are used for collecting light and enabling the light to penetrate into the sensing device for luminance sensing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110040962.XA CN114764024A (en) | 2021-01-13 | 2021-01-13 | Luminance meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110040962.XA CN114764024A (en) | 2021-01-13 | 2021-01-13 | Luminance meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114764024A true CN114764024A (en) | 2022-07-19 |
Family
ID=82363362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110040962.XA Pending CN114764024A (en) | 2021-01-13 | 2021-01-13 | Luminance meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114764024A (en) |
-
2021
- 2021-01-13 CN CN202110040962.XA patent/CN114764024A/en active Pending
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