TWM452347U - Thin light guide structure using the led flash on a portable electronic apparatus - Google Patents

Description

Thinned light guiding structure using LED flash lamp on portable electronic device

The present invention relates to a light guiding structure for combining a portable electronic device, and more particularly to a thin light guiding structure for guiding light emitted by an LED flash of a portable electronic device.

Portable electronic devices, such as smart phones or tablets, typically have a lens and an LED flash for immediate image capture or LED flash to supplement the insufficient brightness of the ingested object.

In order to make the mobile phone have the function of projection, there is an LED light as a light source for projecting the external projection of the mobile phone. For example, Taiwan Patent No. I327018 discloses a camera-projection dual-purpose mobile phone, which is provided with an autofocus lens group and a photosensitive element for photographing. And an LED light source for external projection, an LCD projection system and a certain focal lens group, and a mirror disposed in the body; the light of the LED light source passes through the LCD projection system and the fixed focus lens group, After being reflected by the mirror, the second lens is projected to the outside; and when photographing the outside, the light can be injected into the body from the first and second lenses, respectively, and reflected by the pivotable mirror respectively. And passing through the autofocus lens group to image on the photosensitive element.

In order to enhance the function of capturing images by the mobile phone, the mobile phone is combined with a protective cover with a lens, such as Taiwan Patent M433575, which discloses a curved glass protective case for an electronic device with a lens, which comprises a curved glass and a lens module; The curved glass is combined with the lens module and placed above the lens module; the curved glass is provided with a hole or a groove corresponding to the lens of the lens module to accommodate the lens; the lens is aligned with the electronic device having the camera lens The photographic lens allows the lens to combine the camera lens to capture images.

In order to improve the function of using the LED flash of the portable electronic device, the present invention has been proposed.

The main purpose of the present invention is to provide a thin light guiding structure using an LED flash lamp on a portable electronic device, wherein a housing is respectively combined with a fixing unit and at least one optical fiber; the fixing unit is provided with a socket and a light guiding cavity. And a light guiding port; the light receiving ends of the at least one optical fiber are respectively fixed in the light guiding cavity through the socket; the light projected by the LED flash of the portable electronic device can directly pass through the light guiding port to the light receiving end of the at least one optical fiber Or being reflected by the light guiding cavity wall of the light guiding cavity to the light receiving end of the at least one optical fiber, and the conduction direction of the light projected by the LED flash lamp can be arbitrarily changed through the conduction of the at least one optical fiber, and the light is further guided by using at least one optical fiber or the optical fiber cloth. The LED flash of the portable electronic device has the functions of illuminating, decorating the portable electronic device, projecting the display unit or projecting the full photo to enhance the function of the LED flash.

Another object of the present invention is to provide a thinned light guiding structure using an LED flash lamp on a portable electronic device, which can meet the optical path distance required for full-image imaging, which utilizes a fixed unit, a socket unit and at least The combined structure of one fiber enables the LED flash and the full photo to be in a short vertical distance, allowing the light projected by the LED flash to illuminate the full image, so that the full image can display the full image and meet the needs of the portable electronic device. Have the needs of thinner, shorter, smaller and other functions.

For other purposes and functions of this creation, please refer to the drawings and examples, which are described in detail below.

As shown in FIGS. 1 and 2, the first embodiment of the present invention comprises a thinned light guiding structure 1 of an LED flash lamp on a portable electronic device, comprising a housing 10, a fixing unit 20 and at least one optical fiber 31.

The housing 10 has an upper wall 11 and a lower ring wall 12; the upper end of the lower ring wall 12 is coupled to the upper wall 11 to form an accommodation space 13. The upper wall 11 of the casing 10 is provided with an opening 111; the casing 10 is provided with at least one penetration hole 112 distributed on the upper wall 11 and the lower ring wall 12.

The housing 10 is combined with the fixing unit 20 and the at least one optical fiber 31; at least one optical fiber 31 is respectively disposed in the accommodating space 13. At least one of the penetration holes 112 corresponds to at least one of the optical fibers 31, respectively.

The side edges of the at least one optical fiber 31 of the embodiment may be processed, for example, provided with a crack, so that at least one optical fiber 31 can emit light 313 from the side of the optical fiber and the light-emitting end 312, respectively, as a side optical fiber. The housing 10 is provided with at least one display unit 114; the display unit 114 can be integrally formed with the housing 10, such as by in-mold printing, to form the display unit 114 with a decorative or printed pattern. The housing 10 may also be provided with at least one display opening 113, and the display unit 114 is coupled to the housing 10 at a position corresponding to the display opening 113. The display unit 114 has a decorative or printed pattern, and the display unit 114 is illuminated by the light ray 313 emitted from the side of the optical fiber 31 to cause the display unit 114 to display a brighter decorative or printed pattern.

The fixing unit 20 has an upper end portion 21 and a lower end portion 22; a sliding groove 23 is defined between the upper end portion 21 and the lower end portion 22. The fixing unit 20 can be coupled to the upper wall 11, for example by the sliding groove 23 to the upper wall 11. The fixing unit 20 is movable relative to the upper wall 11 in the direction of shielding the opening 111 or not shielding the opening 111. As shown in Figure 2.

The lower end portion 22 of the fixing unit 20 is provided with a socket 24, a light guiding cavity 25 and a light guiding port 26. The light-receiving ends 311 of the at least one optical fiber 31 are respectively fixed in the light guiding cavity 25 through the socket 24. The light exit ends 312 of the at least one optical fiber 31 are respectively placed in the penetration holes 112 in conjunction with the housing 10. The light guiding cavity 25 is formed by a space surrounded by the light guiding cavity wall 251. The light guiding cavity wall 251 may be coated with a light reflecting layer or may have a light reflecting function by itself.

As shown in FIGS. 1 and 2, the housing 10 of the present embodiment can incorporate a portable electronic device 40. The portable electronic device 40 can be a smart phone or a tablet computer generally provided with a lens 41 and an LED flash 42. The opening 111 corresponds to the position of the lens 41 and the LED flash 42. When the fixing unit 20 does not cover the opening 111, the lens 41 and the LED flash 42 can take in images and project light through the opening 111, as shown in FIG.

As shown in FIG. 1, when the fixing unit 20 shields the opening 111, the light guiding port 26 is positioned just above the LED flash 42. The light 421 projected by the LED flash 42 can be directly incident on the light receiving end 311 of the at least one optical fiber 31 through the light guiding port 26, or reflected by the light guiding cavity wall 251 to the light receiving end 311 of the at least one optical fiber 31, and then guided respectively. To the side of the at least one optical fiber 31 and the light exiting end 312, the light is emitted from the side of the optical fiber 31 and the at least one through hole 112, respectively, or guided to a desired place.

As shown in Fig. 1, the light ray 313 emitted from the side of the optical fiber 31 illuminates the display unit 114 to cause the display unit 114 to display a brighter decorative or printed pattern; and as shown in Fig. 2, at least one of the emitted light is penetrated. The holes 112 can be arranged in various decorative patterns to decorate the portable electronic device 40, and in particular, can display a decorative effect of illumination or have an illumination effect in a dark place.

As shown in FIG. 2, the fixing unit 20 and the housing 10 of the present invention may also have a fixed structure or an integrally formed structure; however, when the lens 41 and the LED flash 42 of the portable electronic device 40 are used, it is necessary to use the lens 41 and the LED flash 42 of the portable electronic device 40. The housing 10 is separated from the portable electronic device 40.

As shown in FIG. 3, the second embodiment of the present invention utilizes a thinned light guiding structure 2 of an LED flash lamp on a portable electronic device, including a housing 10, a fixing unit 20, a fiber optic cloth 30, and a blocking piece 32. Composed of.

The fiber optic cloth 30, such as a side optical fiber cloth, is woven from at least one fiber 33. The at least one optical fiber 33 has a light-receiving end 331 and a light-emitting end 332 respectively; the side of at least one of the optical fibers 33 can be processed, for example, with a crack, so that at least one optical fiber 33 can emit light from the side of the optical fiber and the light-emitting end 332. Side optical fiber.

The housing 10 of the present embodiment is combined with the fixing unit 20 and the blocking piece 32, respectively. The housing 10 can also be provided with a display opening 113, and the display unit 114 is coupled to the housing 10 at a position corresponding to the display opening 113. The housing 10 is provided with the display unit 114, and the joint structure of the fixing unit 20 with the housing 10 and the at least one optical fiber 33 is the same as that of the first embodiment described above, and details are not described herein. The optical fiber cloth 30 and the blocking piece 32 are respectively placed in the accommodating space 13; the optical fiber cloth 30 is placed between the blocking piece 32 and the upper wall 11. The light-receiving ends 331 of the at least one optical fiber 33 are fixed in the light guiding cavity 25 through the socket 24, respectively. The light exit ends 332 of the at least one optical fiber 33 may be placed in the penetration hole 112 or in the housing 10 in conjunction with the housing 10. The end surface of the blocking piece 32 facing the optical fiber cloth 30 is a light reflecting surface, and the light emitted from the optical fiber cloth 30 can be reflected to the casing 10.

When the fixing unit 20 shields the opening 111, the light guiding port 26 is positioned just above the LED flash 42. Light 421 projected by LED flash 42 can be guided through light The port 26 is directly incident on the light-receiving end 331 of the at least one optical fiber 33, or is reflected by the light guiding cavity wall 251 to the light-receiving end 331 of the at least one optical fiber 33, and is respectively guided by the side and the light-emitting end of the at least one optical fiber 33. 332 emits light, has an illumination effect, and the light 313 emitted from the side of the optical fiber cloth 30 can pass through the housing 10 or the illumination display unit 114, so that the display unit 114 displays a bright decorative or printed pattern to decorate the portable electronic device. 40.

As shown in FIG. 4, the third embodiment of the present invention utilizes a thinned light guiding structure 3 of an LED flash lamp on a portable electronic device, including a casing 10, at least one fixing unit 20, at least one optical fiber 34, and a set of connections. The unit 50 and at least one hologram 60 are formed.

The housing 10 is respectively combined with the fixing unit 20, the at least one socket unit 50 and the at least one hologram 60; at least one optical fiber 34 and the socket unit 50 are respectively disposed in the accommodating space 13. The joint structure of the fixing unit 20 with the casing 10 and the at least one optical fiber 34 is the same as that disclosed in the first embodiment.

In this embodiment, except that the hologram 60 is disposed at a position corresponding to the display opening 113, and the socket end unit 50 is used to sleeve the light-emitting end 342 of the at least one optical fiber 34, the rest of the structure is substantially the same as that of the first embodiment, and details are not described herein again. .

As shown in FIGS. 4 and 5, when the fixing unit 20 shields the opening 111, the light guiding port 26 is positioned just above the LED flash 42. The light 421 projected by the LED flash 42 can be directly incident on the light receiving end 341 of the at least one optical fiber 34 through the light guiding port 26, or reflected by the light guiding cavity wall 251 to the light receiving end 341 of the at least one optical fiber 34, and then respectively guided. To the light exit end 342 of at least one of the optical fibers 34, the hologram 60 is illuminated through the light exit end 342, and the hologram pattern 61 is displayed above the hologram 60.

The optical fiber 34 of the embodiment may also be a side optical fiber; or the display unit 114 shown in FIG. 1 may replace the full image 60 or further include the display unit 114, so that the light emitted from the light output end 342 or the side optical fiber illuminates the display unit. 114, to make a brighter decorative or printed pattern.

As shown in FIGS. 6 and 7, the arrangement of the light-receiving end 341 and the light-emitting end 342 of the at least one optical fiber 34 in the interior of the fixed unit 20 and inside the socket unit 50 can be arranged in a corresponding manner to obtain a full-image image. Better imaging effect.

As shown in FIG. 8, the fourth embodiment of the present invention utilizes a thinned light guiding structure 4 of an LED flash lamp on a portable electronic device, including a housing 10, a fixing unit 70, at least one optical fiber 34, and a socket unit. 50 and a full picture 60.

The light-receiving end 341 and the light-emitting end 342 of the at least one optical fiber 34 are combined with the structure of the fixing unit 70 and the socket unit 50 respectively, which are the same as those disclosed in the third embodiment; and at least one optical fiber 34 and the socket unit 50 respectively It is placed in the accommodating space 13.

In this embodiment, the fixing unit 70 is not provided with a chute, but the two dialing members 73 are different from the fixing unit 20, and the housing 10 is provided with a slot 121 corresponding to the dialing member 73, and the dialing member 73 is worn. The through-hole 121 extends beyond the outside of the casing 10, and the rest of the structure is substantially the same as that of the third embodiment described above, and will not be described again.

The lower ring wall 12 of the housing 10 of the present embodiment is provided with two slot holes 121; the dialing members 73 at the two ends of the fixing unit 70 respectively extend through the two slot holes 121 to the outside of the lower ring wall 12. The fixing unit 20 in the above first, second and third embodiments can also be replaced by the fixing unit 70 of the present embodiment.

In this embodiment, by moving the toggle member 73 at the two ends of the fixed unit 70, the two toggle members 73 are respectively in different positions in the two slots 121, so that the upper end portion 71 of the fixing unit 70 shields or does not cover the opening 111. The light guide port 76 is driven above the LED flash 42 or not above the LED flash 42 respectively.

When the fixing unit 70 shields the opening 111, the light guiding port 76 is located just above the LED flash 42. The light 421 projected by the LED flash 42 can be directly incident on the light receiving end 341 of the at least one optical fiber 34 through the light guiding port 76, or The light guiding cavity wall 751 is reflected to the light receiving end 341 of the at least one optical fiber 34, and is respectively guided to the light emitting end 342 of the at least one optical fiber 34, and then illuminates the full image film 60 through the light emitting end 342, and is in the full image film 60. The omnidirectional pattern is displayed above.

As shown in Fig. 9, the light source 81 that has been illuminating the hologram 80 in the past needs to be at a distance far from the rear to satisfy the optical path distance required for the hologram 80, so that the hologram 80 can display the hologram. Pattern 82. To use the LED flash of the portable electronic device to directly illuminate the full photo, so that the full photo shows the full image, it is also necessary to have a long vertical distance between the LED flash and the full photo, so that the portable electronic device cannot be satisfied. Need to have thin, short, small and other functions.

The fixing unit 20 shown in FIG. 1 and the fixing unit 70 shown in FIG. 8 are only for the structure of two possible sliding combined housings 10, and the purpose is to shield or open the opening 111, and An embodiment of the present technical content will be described. Since the sliding type is complicated, it is not listed in detail herein. Any manner of shielding or opening the opening 111 by sliding combination is a patent range of the present invention, and is not limited to the embodiment.

The invention utilizes the LED flash on the portable electronic device to enable the LED flash and the full photo to be in a short vertical distance, so that the light projected by the LED flash indirectly illuminates the full photo, so that the full photo shows the full image, and at the same time It can meet the needs of portable electronic devices that require thinner, shorter, and smaller functions.

As shown in Figures 10, 11, and 12, the light guiding chambers 911, 921, and 931 formed by the light guiding chamber walls 91, 92, 93 of the novel fixing unit may have various shapes, such as the guide shown in Fig. 10. The first embodiment of the optical cavity 911 is linear, and the socket 912 and the light guiding port 913 are arranged in parallel. The second embodiment of the light guiding cavity 921 shown in FIG. 11 has an arc shape, and the socket 922 and the light guiding port 923 are provided. The arrangement of the light guiding cavity 931 shown in FIG. 12 is approximately linear, but the socket 932 and the light guiding port 933 are non-parallel (bending an oblique angle). The arrangement is such that the light 421 directly illuminates the light receiving end 351 of the at least one optical fiber 35. The light 421 projected by the LED flash 42 of the portable electronic device 40 can be directly incident on the light receiving end 351 of the at least one optical fiber 35 through the light guiding ports 913, 923, 933, or reflected by the light guiding cavity walls 91, 92, 93. Light end 351.

As shown in Fig. 13, the fifth embodiment of the present invention comprises a thinned light guiding structure 5 of an LED flash lamp on a portable electronic device, comprising a casing 10', a fixing unit 20 and at least one optical fiber 31. In this embodiment, except that the shape of the housing 10' is slightly different from that of the first embodiment, the rest of the structure and the effect achieved are substantially the same, and will not be described again.

The upper wall 11 of the casing 10' of the present example is provided with a projection 14 corresponding to the position of the fixing unit 20 to join and accommodate the thicker fixing unit 20, and the other portions are thin to reduce the volume of the casing 10' and thickness.

The housing of each of the above-described embodiments of the present invention may have the shape of the housing 10' of the present embodiment.

The light emitted by the LED flash of the portable electronic device can be directly transmitted to the light receiving end of at least one optical fiber through the light guiding port of the fixed unit, or can be reflected by the light guiding cavity wall of the light guiding cavity to the light receiving of at least one optical fiber. End, through the conduction of at least one optical fiber, changing the traveling direction of the light projected by the LED flash, and further guiding the light by using at least one optical fiber or the side optical fiber, so that the LED flash of the portable electronic device has the functions of illumination and decoration to enhance LED flash function.

The novel use the thin light guiding structure of the LED flash lamp on the portable electronic device, and the combined structure of the fixing unit, the socket unit and the at least one optical fiber can meet the optical path distance required for the full image imaging, so that the LED flash lamp and the LED flash The full-image film can make the full-image image of the full-image display in the short vertical distance, so that the full-image film can display the full-image pattern, and the portable electronic device needs to have the functions of thinner, shorter, smaller, etc. demand.

The portable electronic device can be used to download the application software matched with the present invention to control the operating system, and when there is an incoming call, the LED flash can be used to project light, and the brightness and frequency of the projected light of the LED flash can be further controlled according to the incoming call number. The pattern displayed by the display unit or the full-image display of the full-image pattern or the pattern of the decorative portable electronic device may have an effect of bright and bright changes and different blinking frequencies depending on the number of the incoming call.

The above description is only for the embodiment using the content of the novel technology, and anyone skilled in the art who uses the present invention to modify, change, combine or combine different optical fibers or optical fiber cloths is a patent claimed by the present invention. The scope is not limited to those disclosed in the examples.

1, 2, 3, 4, 5‧‧‧ Thin light guide structure using LED flashlight on portable electronic device

10, 10'‧‧‧ shell

11‧‧‧Upper wall

111‧‧‧ openings

112‧‧‧through hole

113‧‧‧Show opening

114‧‧‧Display unit

12‧‧‧ Lower ring wall

121‧‧‧Slots

13‧‧‧ accommodating space

14‧‧‧Protruding

20, 70‧‧‧ fixed unit

21, 71‧‧‧ upper end

22‧‧‧Bottom

23‧‧‧Chute

24, 912, 922, 932 ‧ ‧ sockets

25, 911, 921, 931‧‧ ‧ light guide cavity

251, 751, 91, 92, 93‧‧‧ light guide wall

26, 76, 913, 923, 933‧‧ ‧ light guide

30‧‧‧Fiber cloth

31, 33, 34, 35‧‧‧ fiber

311, 331, 341, 351‧‧ ‧ receiving end

312, 332, 342, 352‧‧‧ light end

313‧‧‧Light

32‧‧ ‧Flap

40‧‧‧Portable electronic device

41‧‧‧ lens

42‧‧‧LED flash

421‧‧‧ rays

50‧‧‧ Socket unit

60, 80‧‧‧All Photos

61, 82‧‧‧ hologram

73‧‧‧3⁄2

81‧‧‧Light source

1 is a schematic view of a thin-type light guiding structure combined with a portable electronic device according to a first embodiment of the present invention.

FIG. 2 is a schematic view showing the appearance of a thin-type light guiding structure combined with a portable electronic device according to the first embodiment of the present invention.

FIG. 3 is a schematic view showing a thinned light guiding structure combined with a portable electronic device according to a second embodiment of the present invention.

Fig. 4 is a schematic view showing a thinned light guiding structure combined with a portable electronic device according to a third embodiment of the present invention.

Fig. 5 is a schematic view showing the hologram of the hologram of the third embodiment of the present invention.

Fig. 6 is a view showing the arrangement shape of the light-receiving ends of at least one of the optical fibers of the third embodiment of the present invention.

Fig. 7 is a view showing the arrangement of the light-emitting ends of at least one optical fiber of the third embodiment of the present invention.

FIG. 8 is a schematic view showing a thinned light guiding structure combined with a portable electronic device according to a fourth embodiment of the present invention.

Fig. 9 is a schematic view showing that a full-image pattern is known to be illuminated by a light source.

Figure 10 is a schematic view of the first embodiment of the novel light guiding cavity.

Figure 11 is a schematic view of a second embodiment of the novel light guiding cavity.

Figure 12 is a schematic view of a third embodiment of the novel light guiding cavity.

Fig. 13 is a schematic view showing a fifth embodiment of a thinned light guiding structure combined with a portable electronic device.

1‧‧‧Using a thin light guide structure on an LED flash lamp on a portable electronic device

10‧‧‧shell

11‧‧‧Upper wall

111‧‧‧ openings

112‧‧‧through hole

113‧‧‧Show opening

114‧‧‧Display unit

12‧‧‧ Lower ring wall

13‧‧‧ accommodating space

20‧‧‧Fixed unit

21‧‧‧Upper

22‧‧‧Bottom

23‧‧‧Chute

24‧‧‧ Sockets

25‧‧‧Lighting cavity

251‧‧‧Light guide wall

26‧‧‧Light guide

31‧‧‧ fiber optic

311‧‧‧ Receiving end

312‧‧‧ light end

313‧‧‧Light

40‧‧‧Portable electronic device

42‧‧‧LED flash

421‧‧‧ rays

Claims (10)

A thin light guiding structure using an LED flash lamp on a portable electronic device, comprising: a casing having an upper wall and a lower ring wall; the upper end of the lower ring wall connecting the upper wall to form an accommodating space; at least one The optical fiber is disposed in the accommodating space; the at least one optical fiber has a light receiving end and a light emitting end respectively; a fixing unit is coupled to the housing; the fixing unit is provided with a set of interfaces, a light guiding cavity and a light guiding The light guiding cavity is formed by a space surrounded by the wall of the light guiding cavity; the light receiving end of the at least one optical fiber is respectively fixed in the light guiding cavity through the socket; wherein the light guiding port is disposed in a corresponding one The position of the LED flash of the electronic device, when the housing is combined with the portable electronic device, the light guiding port is located above the LED flash, so that the light projected by the LED flash directly passes through the light guiding port to the at least a light-receiving end of an optical fiber, or reflected by the wall of the light guiding cavity to one of the light-receiving ends of the at least one optical fiber, and then respectively guided to the light-emitting end of the at least one optical fiber to emit light to change the LED flash projection Light Direction of travel, the LED flash light projected directed to where it is needed. The thinned light guiding structure using the LED flash lamp on the portable electronic device according to the first aspect of the invention, wherein the housing is provided with at least one through hole; the light emitting ends of the at least one optical fiber are respectively combined with the housing And respectively disposed in the at least one penetration hole, the 俾 respectively emitting light from the at least one penetration hole. A thinned light guiding structure using an LED flash lamp on a portable electronic device according to claim 1, wherein the housing is provided with at least one a display unit; the at least one optical fiber is a side optical fiber; the at least one display unit has a pattern, and the light emitted from the side of the at least one side optical fiber illuminates the at least one display unit, so that the at least one display unit displays a brighter picture of. The thinned light guiding structure using the LED flash lamp on the portable electronic device according to claim 3, wherein the at least one side optical fiber is a side optical fiber in one side optical fiber cloth; the at least one display unit Forming integrally with the housing or the at least one display unit is coupled to one of the positions of the housing at least one display opening corresponding to the housing. The thin light guiding structure using the LED flash lamp on the portable electronic device according to claim 3, wherein the housing is provided with at least one through hole; the light emitting ends of the at least one optical fiber are respectively combined with the housing And respectively disposed in the at least one penetration hole, the 俾 respectively emitting light from the at least one penetration hole. The thinned light guiding structure using the LED flash lamp on the portable electronic device according to claim 1, further comprising a set of connecting units, and including at least one of a full photo film or a display unit; the upper wall Having at least one display opening; the at least one socket unit is coupled to the housing; at least one of the hologram or the display unit is coupled to the housing; the at least one display opening respectively corresponds to the hologram or the display unit At least one position; the socket unit is disposed in the accommodating space; the socket unit sleeves the light-emitting end of the at least one optical fiber, and the illuminating end of the at least one optical fiber emits light to illuminate the hologram or the The display unit displays a hologram or illuminates the display unit above the hologram to cause the display unit to display a brighter pattern. As described in claim 6 of the portable electronic device The thin light guiding structure of the LED flash lamp, wherein the at least one optical fiber is a side optical fiber; the display unit has a pattern, and the light emitted from the side of the side optical fiber illuminates the display unit, so that the display unit displays brighter picture of. The thinned light guiding structure using the LED flash lamp on the portable electronic device according to any one of claims 1 to 7, wherein the upper wall is provided with an opening; the opening corresponding to the portable electronic device a lens and a position of the LED flash; the fixing unit has an upper end portion and a lower end portion; the lower end portion is provided with the socket, the light guiding cavity and the light guiding port; the fixing unit is slidably coupled to the housing俾 moving relative to the housing to shield the opening or not to cover the opening; when the fixing unit shields the opening, the light guiding port is located above the LED flash; when the fixing unit does not cover the opening, the The lens and the LED flash can respectively capture images and project light through the opening. The thin light guiding structure using the LED flash lamp on the portable electronic device according to claim 8, wherein the upper wall of the housing is provided with a protruding portion corresponding to the position of the fixing unit to be combined and accommodated. The fixing unit has a sliding slot between the upper end portion and the lower end portion, the sliding slot sleeves the upper wall, or the housing is provided with two slots corresponding to the two dialing members, the two The dial member extends through the two slots to protrude from one of the outer portions of the housing, so that the fixing unit is slidably coupled to the housing. The thinned light guiding structure using the LED flash lamp on the portable electronic device according to any one of claims 1 to 7, wherein the upper wall of the housing is provided with a protrusion corresponding to the position of the fixing unit. To combine and accommodate the fixed unit.