TWI440892B - Portable electronic device - Google Patents

Description

Portable electronic device

The invention relates to a portable electronic device.

Currently, portable electronic devices, such as mobile phones, generally have a camera function. Mobile phones with camera functions are also usually equipped with fill light to compensate for the lack of light in the shooting environment.

The camera component of the mobile phone includes a lampshade, a fill light, a camera, and a plane lens. The fill light is disposed adjacent to the camera in the mobile phone, and the light cover is fixed in the mobile phone and located under the fill light. The planar lens is positioned above the fill light to protect the fill light from dust or other contaminants. The light from the fill light passes through the flat lens and illuminates the subject directly or through the lampshade.

However, since the fill light is a point light source, the light emitted by it is relatively scattered. Therefore, the brightness near the portion of the fill light is large, and the brightness away from the side of the fill light is weak, and the flat lens does not change the light output of the fill light. The distribution of brightness. Therefore, when the fill light illuminates the shooting target, the shooting target receives uneven light, and the brightness of the central portion of the fill light is strong, and the two sides are weak, resulting in uneven brightness of the image after imaging, which affects the imaging effect.

In view of the above, it is necessary to provide a portable electronic device in which the brightness of the fill light is relatively uniform.

A portable electronic device includes a body, a camera, a fill light, and a lens. The camera and the fill light are disposed adjacent to the body, and the lens is disposed above the fill light. The lens includes a light incident surface facing the fill light and a plurality of long V-shaped protrusions formed parallel to the light incident surface, wherein the lens is perpendicular to a cross section of the plurality of elongated V-shaped protrusions. The apex angle of the plurality of elongated V-shaped projections is an obtuse angle and gradually increases in a direction away from the fill light.

The light incident surface of the lens of the portable electronic device of the present invention is formed with a plurality of long V-shaped protrusions parallel to each other, and the apex angle value of the elongated V-shaped protrusion is gradually increased away from the fill light. . Although the brightness of the lens near the fill light is large, the apex angle of the long V-shaped protrusion close to the fill light is small, and the refractive power is strong, and the light incident thereon can be more refracted. To the lateral direction of the long V-shaped protrusion, the light distribution of the fill light is relatively uniform, and the imaging effect of the camera is better.

200‧‧‧Portable electronic device

21‧‧‧ body

211‧‧‧ first light transmission hole

212‧‧‧second light transmission hole

23‧‧‧ camera

25‧‧‧ fill light

26‧‧‧shade

27‧‧‧ lens

2711‧‧‧Long strip V-shaped bump

271‧‧‧Into the glossy surface

272‧‧‧Glossy surface

28‧‧‧ center line

1 is a partial cross-sectional view showing an embodiment of a portable electronic device of the present invention.

2 is a perspective view of a lens used in the portable electronic device shown in FIG. 1.

Figure 3 is a light path diagram of light traveling in the lens shown in Figure 2.

Referring to FIG. 1 , the portable electronic device 200 of the present embodiment is a mobile phone, which includes a body 21 , a camera 23 , a fill light 25 , a lamp cover 26 , and a lens 27 . An adjacent first light transmission hole 211 and a second light transmission hole 212 are defined in the main body 21 .

The camera 23, the fill light 25 and the lamp cover 26 are fixed in the body 21, and the camera 23 passes through the first light transmission hole 211. The lens 27 is fixed in the second light transmission hole 212. The fill light 25 is disposed below the lens 27. The lamp cover 26 is disposed under the fill light 25 and surrounds the fill light 25 . The fill light 25 is a light emitting diode, and a high reflectivity coating is formed on the inner surface of the lamp cover 26.

Referring to FIG. 2 and FIG. 3 together, the lens 27 has a first surface 271, a second surface 272 opposite to the first surface 271, and a plurality of elongated V-shaped protrusions 2711 formed on the first surface 271. . The first surface 271 faces the fill light 25 as a light incident surface, and the second surface 272 is a flat surface. The plurality of elongated V-shaped projections 2711 are symmetrically distributed about the center line 28 of the lens 27, and the elongated V-shaped projections 2711 are inclined toward the direction away from the center line 28. In the present embodiment, the apex angle θ of the vertical section of the elongated V-shaped projection 2711 is an obtuse angle, and the value of the apex angle θ gradually increases along the direction away from the center line 28.

The apex angle of the long V-shaped projection 2711 of the central portion of the lens 27 facing the fill lamp 25 is small, and the refractive power is strong. The long V-shaped projection 2711 of the portion of the lens 27 which is farther away from the fill lamp 25 has a larger apex angle and a weaker refractive power. In the environment of insufficient light, the fill light 25 is turned on, and the light emitted from the fill light 25 enters the first surface 271 of the lens 27 through the second light transmission hole 212 directly or after being reflected by the inner surface of the lamp cover 26. Since the fill light 25 is a point light source, the light incident on the central portion of the lens 27 is strong. However, the long V-shaped protrusion 2711 of the central portion of the lens 27 has a strong refractive power, and the incident light of the central portion can be directed. The two sides are deflected to reduce the brightness of the central portion of the light, so that the light emitted from the lens 27 is uniformly irradiated onto the object to avoid excessive concentration of light in the central portion of the image. The camera 23 receives light through the first light-transmitting hole 271 and takes a photograph, and since the photographing target receives light uniformly, the imaging effect is good. The apex angles of the elongated V-shaped projections 2711 are obtuse angles, the strength thereof is high, and the processing is easy.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above is only the embodiment of the present invention, and the scope of the present invention is not limited to the above embodiment, and those who are familiar with the skill of the present invention are in the spirit of the invention. Equivalent modifications or variations are intended to be included in the scope of the following claims.

200‧‧‧Portable electronic device

21‧‧‧ body

211‧‧‧ first light transmission hole

212‧‧‧second light transmission hole

23‧‧‧ camera

25‧‧‧ fill light

26‧‧‧shade

27‧‧‧ lens

2711‧‧‧Long strip V-shaped bump

Claims (7)

A portable electronic device includes a body, a camera, a fill light, and a lens, wherein the camera and the fill light are disposed adjacent to the body, and the lens is disposed above the fill light, and the improvement is: The lens includes a light incident surface facing the fill light, and a plurality of strip-shaped V-shaped protrusions formed on the light incident surface parallel to each other, and the lens is perpendicular to a cross section of the plurality of elongated V-shaped protrusions The apex angle of the plurality of elongated V-shaped projections is an obtuse angle and gradually increases in a direction away from the fill light. The portable electronic device of claim 1, wherein the light exiting surface of the lens is a flat surface. The portable electronic device of claim 1, wherein the body is provided with an adjacent first light transmission hole and a second light transmission hole, and the camera receives light through the first light transmission hole, the compensation The light beam emits light through the second light transmission hole. The portable electronic device of claim 3, wherein the lens is fixed in the second light transmission hole. The portable electronic device of claim 1, wherein the portable electronic device further comprises a lamp cover fixed in the body and located under the fill light. The portable electronic device of claim 5, wherein the inner wall of the lampshade is formed with a highly reflective coating. The portable electronic device of claim 1, wherein the fill light is a light emitting diode.