The subject matter herein generally relates to a light shield and a lamp assembly including the light shield.
A ring light is widely used. However, the present ring light does not have a lamp cover, which enables emitted light to interfere with image-capturing equipment. This can be problematic in a quality control or manufacturing environment.
Implementations of the present technology will now be described, by way of embodiment, with reference to the attached figures.
It will be appreciated that for simplicity and clarity of illustration, where appropriate, reference numerals have been repeated among the different figures to indicate corresponding or analogous elements. In addition, numerous specific details are set forth in order to provide a thorough understanding of the embodiments described herein. However, it will be understood by those of ordinary skill in the art that the embodiments described herein can be practiced without these specific details. In other instances, methods, procedures, and components have not been described in detail so as not to obscure the related relevant feature being described. Also, the description is not to be considered as limiting the scope of the embodiments described herein. The drawings are not necessarily to scale and the proportions of certain parts may be exaggerated to better illustrate details and features of the present disclosure.
Several definitions that apply throughout this disclosure will now be presented.
The term “coupled” is defined as connected, whether directly or indirectly through intervening components, and is not necessarily limited to physical connections. The connection can be such that the objects are permanently connected or releasably connected. The term “substantially” is defined to be essentially conforming to the particular dimension, shape, or other feature that the term modifies, such that the component need not be exact. For example, “substantially cylindrical” means that the object resembles a cylinder, but can have one or more deviations from a true cylinder. The term “comprising,” when utilized, means “including, but not necessarily limited to”; it specifically indicates open-ended inclusion or membership in the so-described combination, group, series, and the like.
The first shield portion 10, the second shield portion 20, and the third shield portion 30 are arranged along a common axis. The nearest distance between the third shield portion 30 and the axis is about 17 cm, the nearest distance between the second shield portion 20 and the axis is about 20 cm, the nearest distance between the first shield portion 10 and the axis is about 25 cm. The farthest distance between the first shield portion 10 and the axis is about 30 cm. A vertical distance between the first shield portion 10 and the third shield portion 30 is about 5.3 cm.
The light shield 100 further defines a through hole 40. The third shield portion 30 is arranged around the through hole 40. In one embodiment, a cross section of the through hole 40 is circular. The axis of the through hole 40 is the same as the axis of the first shield portion 10, the second shield portion 20, and the third shield portion 30. The diameter of the through hole 40 is equal to the nearest distance between the third shield portion 30 and the axis, which is about 17 cm.
The light shield 100 further includes at least one mounting portion 50. Each mounting portion 50 is arranged on the first shield portion 10. In one embodiment, the light shield 100 includes two mounting portions 50. The two mounting portions 50 are fixed on an edge of the first shield portion 10 away from the second shield portion 20. The two mounting portions 50 are opposite to each other. Each mounting portion 50 defines a fixing hole 51, the fixing hole 51 is a through hole. The fixing holes 51 can be threaded holes, that is, the hole wall of the fixing hole 51 is provided with thread. The light shield 100 is fixed by the fixing holes 51. A positional base (not shown) for the light shield 100 includes at least one fixing member which defines a mounting point or hole corresponding to each fixing hole 51 and is provided with a fastener. The fastener passes through the mounting hole and the fixing hole 51 to fasten the light shield 100 on the base. The mounting points or holes can be threaded and the fastener can be a screw or nut.
Thus, the camera module can capture images without distortion and without being blinded, and false alarms because of abnormal image-capturing are eliminated, production efficiency can be improved.
While the present disclosure has been described with reference to particular embodiments, the description is illustrative of the disclosure and is not to be construed as limiting the disclosure. Therefore, those of ordinary skill in the art can make various modifications to the embodiments without departing from the scope of the disclosure as defined by the appended claims.
Number | Date | Country | Kind |
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201910824859.7 | Sep 2019 | CN | national |