KR101826839B1 - Flash lens for mobile device - Google Patents
Flash lens for mobile device Download PDFInfo
- Publication number
- KR101826839B1 KR101826839B1 KR1020150186694A KR20150186694A KR101826839B1 KR 101826839 B1 KR101826839 B1 KR 101826839B1 KR 1020150186694 A KR1020150186694 A KR 1020150186694A KR 20150186694 A KR20150186694 A KR 20150186694A KR 101826839 B1 KR101826839 B1 KR 101826839B1
- Authority
- KR
- South Korea
- Prior art keywords
- lens body
- lens
- substrate
- flash
- case
- Prior art date
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Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
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- 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
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- 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
- G03B2215/00—Special procedures for taking photographs; Apparatus therefor
- G03B2215/05—Combinations of cameras with electronic flash units
- G03B2215/0564—Combinations of cameras with electronic flash units characterised by the type of light source
- G03B2215/0567—Solid-state light source, e.g. LED, laser
Abstract
The present invention relates to a flash lens capable of minimizing optical loss of light emitted from a light source included in a flash of a portable terminal and transmitting the light to the outside. A flash lens of the present invention for this purpose comprises a lens body which transmits light emitted from a light source coupled to a substrate and transmits the light to the outside; And a reflector part coupled to the outer peripheral part of the lens body and reflecting the light emitted from the light source to the space between the substrate and the case spaced apart from the substrate, to the lens body.
Description
The present invention relates to a flash lens, and more particularly, to a flash lens capable of minimizing optical loss of light emitted from a light source included in a flash of a portable terminal and transmitting the light to the outside.
In recent years, as the use of portable terminals has increased and users' demands have diversified, portable terminal technology is being developed in a direction to miniaturize the portable terminal while mounting various functions.
In particular, the camera function of the portable terminal is now an essential function, not an add-on function. As the camera module has become smaller and smaller due to the recent breakthrough in camera technology, it is able to meet the needs of the user.
In the case of a camera module mounted on a portable terminal, a camera module including a lens module and an image pickup element is mounted on one surface of a portable terminal such as a cellular phone or a PDA. In the periphery of the camera module, a flash module for irradiating light forward is disposed.
Accordingly, it is possible to obtain a clear and high quality image by using the flash module when photographing at night or in a dark room, and it is also possible to use it as a light at night, thereby providing convenience to the user. In the case of such a flash module, various target specifications such as the uniformity of the central altitude value and the ambient illuminance, the chromaticity deviation, the CCT deviation, etc., are used to illuminate the light generated from the light source (for example, LED) Lt; / RTI > In order to meet such a target specification, as shown in Fig. 6, a
Here, the light source included in the
Therefore, a demand for a new lens structure capable of minimizing the above-described optical loss is increasing.
An object of the present invention is to provide a flash lens capable of minimizing light loss of light emitted from a light source of a flash module.
According to an aspect of the present invention, there is provided a flash lens comprising: a lens body that transmits light emitted from a light source coupled to a substrate and transmits the light to the outside; And a reflector part coupled to the outer peripheral part of the lens body and reflecting the light emitted from the light source to the space between the substrate and the case spaced apart from the substrate, to the lens body.
Further, the lens body may be fixedly coupled to the through hole formed in the case, and a step may be formed such that the lower portion of the through hole is wider than the upper portion of the through hole.
Further, the width of the upper portion of the lens body is narrower than the width of the lower portion of the lens body, and the upper portion of the lens body can contact the upper inner surface of the through hole.
Further, the upper outer surface of the reflector portion can contact the lower inner surface of the through hole.
Further, when the lens body is coupled to the through-hole, the upper surface of the lens body and the upper surface of the case may be planar.
Further, the reflector portion may be coupled to the outer peripheral portion of the side surface of the lens body through double injection.
Further, the light source further includes a Fresnel pattern portion formed inside the lower surface of the lens body, and the light reflected through the reflector portion may be reflected to the Fresnel pattern portion.
Further, the lower portion of the reflector portion extends in the direction of the substrate, and the lower portion of the reflector portion can be separated from the upper portion of the substrate, or can contact the upper portion of the substrate.
According to the flash lens of the present invention, when a flash function is used in a portable terminal, light generated from a light source is transmitted to a lens body through a reflector portion, thereby minimizing optical loss.
Further, according to the flash lens of the present invention, since the reflector portion is fixed to the lens body through the double injection, a separate fixing member for fixing the lens body and the reflector portion is not required, thereby minimizing the volume of the flash lens There are advantages.
According to the flash lens of the present invention, since the upper surface of the flash lens and the upper surface of the case are flat, the upper portion of the flash lens does not protrude to the outside, and thus the situation where the flash lens is affected by external impact There is an advantage that it can be reduced.
1 is a perspective view of a portable terminal to which a flash lens according to an embodiment of the present invention is applied.
2 is a perspective sectional view of a flash lens according to an embodiment of the present invention;
3 is a conceptual view for explaining an example of coupling a flash lens to a case according to an embodiment of the present invention;
4 and 5 are conceptual diagrams illustrating an example in which a flash lens according to an embodiment of the present invention is coupled to a case;
6 is a conceptual diagram of a flash module according to the prior art;
The present invention will now be described in detail with reference to the accompanying drawings. Hereinafter, a repeated description, a known function that may obscure the gist of the present invention, and a detailed description of the configuration will be omitted. Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art. Accordingly, the shapes and sizes of the elements in the drawings and the like can be exaggerated for clarity.
Hereinafter, the
2 is a perspective sectional view of a
2, the
The
2 and 3, the
3, the
When the
The
In the case of the conventional flash lens, as described with reference to FIG. 6, the light generated from the light source is emitted between the
Further, the
On the other hand, when the
When the
Here, the
A
An example in which the
According to the
As described above, an optimal embodiment has been disclosed in the drawings and specification. Although specific terms have been employed herein, they are used for purposes of illustration only and are not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.
100: flash lens 110: lens body
130: Reflector unit 150: Fresnel pattern
Claims (10)
And a reflector unit that reflects light emitted from the light source to a space between the substrate and the case spaced apart from the substrate by the lens body,
The reflector unit,
The lens body being formed as one body by double injection together with the lens body, extending in the direction of the substrate while being in contact with the outer circumferential surface of the lens body,
Wherein the lens body is fixed to the through hole, wherein the upper outer side surface is in contact with the lower inner side surface of the through hole formed in the case,
And a lower portion of the through hole is formed to have a width larger than an upper portion of the through hole.
Wherein a width of an upper portion of the lens body is narrower than a width of a lower portion of the lens body, and an upper portion of the lens body is in contact with an upper inner surface of the through hole.
Wherein the upper surface of the lens body and the upper surface of the case are flat when the lens body is coupled to the through hole.
Wherein a lower portion of the reflector portion extends in the direction of the substrate, and a lower portion of the reflector portion and an upper portion of the substrate are spaced apart from each other.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140192268 | 2014-12-29 | ||
KR20140192268 | 2014-12-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20160080082A KR20160080082A (en) | 2016-07-07 |
KR101826839B1 true KR101826839B1 (en) | 2018-03-22 |
Family
ID=56499833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020150186694A KR101826839B1 (en) | 2014-12-29 | 2015-12-24 | Flash lens for mobile device |
Country Status (1)
Country | Link |
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KR (1) | KR101826839B1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20200032459A (en) | 2018-09-18 | 2020-03-26 | 삼성전자주식회사 | Electronic device including nonmetal light guide structure |
WO2020103507A1 (en) * | 2018-11-20 | 2020-05-28 | 南昌欧菲生物识别技术有限公司 | Projection module, imaging device, and electronic apparatus |
KR20220145010A (en) * | 2021-04-21 | 2022-10-28 | 삼성전자주식회사 | Electonic device including flash module and lens assembly molding method |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100972983B1 (en) | 2009-01-09 | 2010-07-29 | 삼성엘이디 주식회사 | Camera flash lens and portable device including the same |
-
2015
- 2015-12-24 KR KR1020150186694A patent/KR101826839B1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
KR20160080082A (en) | 2016-07-07 |
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