TW201348638A - Light-emitting device with optical flame imaging - Google Patents

Abstract

A light-emitting device with optical flame imaging comprises a light source, a light guide post, and a cover. The light guide post has a light incident end and a light exiting end, and the cover is to cover the periphery of the light guide post. Light beam generated by the light source enters the light guide post via the light incident end and is, guided by the light guide post, emitted outward via the light exiting end. The light beam emitted from the light guide post is then partially reflected and refracted to form optical flame imaging in a light beam convergence area between the cover and the light guide post.

Description

Illuminating device with optical flame imaging

The invention relates to an illuminating device with optical flame imaging, in particular to guide and refract through a light guiding column, and to cooperate with the illuminating and reflecting part of the light to form an optical flame imaging between the light guiding column and the cover body. Light emitting device.

With the rise of the concept of green environmental protection, lighting fixtures such as fluorescent lamps or incandescent bulbs that have been used in the past are gradually replaced by LED lamps due to their large power consumption and the tendency to generate high heat. LED lamps are illuminated by two poles. As a light source, the body has lower power consumption and service life than the fluorescent lamps or incandescent bulbs used in the past, and does not have the pollution and danger of mercury vapor like the fluorescent bulb.

However, the existing LED lamps are limited by the limitation of the LED package and the illuminating characteristics, and the disadvantage is that the light generated by the LEDs can only be concentrated forward, so that the light can be uniformly and omnidirectional. The light-emitting effect to provide effective illumination, the astigmatism must be added to the lampshade for uniform light output and illumination, or the projection angle of the light guide column to guide the light inside the lamp, and through the light guide column shape The change causes the light to produce different refractions and reflections in order to provide a more uniform light and illumination effect.

However, the conventional LED lamp only solves the problem of uniform light emission and illumination, but it can not further provide consumers with different viewing and erotic effects in the visual appearance of the LED lamp. Monotonous light It is difficult to create the visual effect of the traditional flame according to the performance, and the desire to purchase the consumer who cannot replace the traditional light source and pay attention to the visual effect is formed.

In order to effectively overcome the problems of the above-mentioned prior art, the present invention mainly comprises forming a refracting surface on the light guiding column, so that the light emitted by the light guiding column is first diverged, and then reflected and refracted by a cover body. Having a change in optical flame imaging between the cover and the light guide column, thereby providing a visual effect of the illumination device that approximates the illumination of the candle, so that the illumination device has different visual effects in appearance, thereby further increasing the desire of the consumer to purchase the product. .

To this end, the present invention discloses a light-emitting device with optical flame imaging, comprising: a light source; a light guide column comprising: an light-input end for receiving the light source and having a first incident surface; a light-emitting end surface, the light-emitting end surface constitutes a light-guiding surface; and a cover body disposed around the light guide column, the inner surface of the cover body forming a reflection and refraction surface; wherein the light generated by the light source passes through the first incident light The surface enters the light guiding column, and the guiding of the light guiding column is refracted by the light guiding surface, and the light refracted by the light guiding column is further reflected and refracted by the portion of the cover body to be between the cover body and the light guiding column. The light collection area forms an optical flame image.

The light-emitting device has an optical flame imaging device, wherein the light-injecting end further has a second incident surface, so that the light generated by the light source passes through the second The incident surface enters the light guiding column, and the guiding of the light guiding column is refracted by the light guiding surface, and then the portion of the reflecting surface is reflected by the light collecting region between the cover body and the light guiding column to form the optical flame imaging.

The light-emitting device with optical flame imaging, wherein a side of the light guiding column has a second refractive surface, such that when the incident angle of light incident on the second refractive surface is smaller than the total reflection angle of the side of the light guiding column, the light will be Directly transmitted through the second refractive surface; when the incident angle of the light is greater than the total reflection angle of the side of the light guide column, the light will be refracted by the second refractive surface and guided to the light guiding surface.

The illuminating device with optical flame imaging, wherein the hood is composed of a transparent material.

The light-emitting device has an optical flame imaging device, wherein the light collecting region is distributed at an adjacent position of a top end of a center line C of the light-emitting end of the light guiding rod.

The light-emitting device has an optical flame imaging device, wherein a light guiding portion is disposed between the light-incident end and the light-emitting end, so that light incident from the light-injecting end is guided by the light guiding portion from the light-emitting end Exit.

The invention can form optical flame imaging through optical light guiding and refraction and reflection, and can cooperate with the partial reflection of light by the cover body, and change the spacing between the cover body and the light guiding column as the brightness of the light source changes, and change the cover body. The shape of the appearance or the angle of the human eye to observe the optical flame imaging, etc., will cause the shape of the generated optical flame to produce different appearance changes, which can simulate the light and shadow like a candle flame, in addition to enhancing the aesthetic appearance of the overall shape. In addition, it further produces a unique visual and erotic effect on the appearance.

The optical flame imaging formed by the present invention can replace the effect of a conventional candle as an illumination or lighting accessory.

1 and 2 are respectively a cross-sectional view of a light-emitting device according to an embodiment of the present invention and a perspective view of the cover body separated from the light guide column. As shown, the light-emitting device 1 of the present invention includes a light source 30, a light guide 10, a cover 20, and a socket 21. The light source 30 is disposed on a base 32 in the socket 21 for providing at least one light. In this embodiment, the light source is an LED light emitting device, which may include an LED light emitting element or an array of LED light emitting elements.

The light guiding column 10 has an light-incident end 12 and a light-emitting end 14 corresponding to the light-incident end 12, and a light-guiding section 18 between the light-incident end 12 and the light-emitting end 14, wherein the light-emitting end 14 has a light-emitting end 14 Light guiding surface 141. In this embodiment, the light guiding surface 141 is a concave curved surface structure. A light collecting region S is defined at a position adjacent to the top end of a center line C of the light exiting end 14 of the light guiding column 10.

The cover 20 is disposed around the light guiding column 10 and has a predetermined interval from the light emitting end 14 of the light guiding column 10, so that the light generated by the light source 30 is incident on the light end 12 of the light guiding column 10, After the light guiding section 18 is guided, the light guiding surface 141 of the light emitting end 14 is projected to the light collecting area S in a light projection direction I, and the light guided by the light guiding surface 141 can be received by the cover 20 again. Partial reflection and refraction, and forming an approximately flaming optical flame at the light collection region S at the top end of the light exit end 14 of the light guide column 10. image. The inventors will further elaborate on the structure of the present invention and the path of light in the next section.

The light-incident end 12 of the light guide 10 of the present invention has a groove shape for providing a light source 30. The light-incident end 12 has a first incident surface 121 and a second incident surface 123. The light generated by the light source 30 can be incident into the light guide column 10 via the first incident surface 121 and the second incident surface 123, respectively, and then guided through the light guide column 10, that is, after being guided by the light guide section 18, The light-emitting end 14 is pierced, and the surface of the light-emitting end 14 constitutes a light-guiding surface 141, which can refract and scatter light passing through the light-emitting end 14 to the outside.

The cover body 20 of the present invention is preferably made of a transparent material and is a semi-arc shaped cover body 20. The inner surface of the cover body 20 forms a refractive surface 22, so that the light guide column 10 is internally light-emitting. The light guided by the light guiding surface 141 of the end 14 can be directly transmitted through the cover 20, and the other part of the light is reflected and reflected by the refractive surface 22 in the cover 20 and the light guide. The light collection region S between 10 forms an image of an approximately flame-shaped optical flame imaging.

Please refer to FIG. 3, which is a schematic diagram of a light path of a light-emitting device according to an embodiment of the present invention. As shown in the figure, the light L1 generated by the light source 30 in the present invention is first refracted through the first incident surface 121 and enters the light guide column 10. The light guide column 10 guides the light L1 from the first incident surface 121 to the light exiting light. The end 14 is such that the light ray L1 is transmitted through the light guiding surface 141 of the light emitting end 14 and the light ray L1 is first refracted and refracted by the light guiding surface 141 when passing through the light emitting end 14 for the purpose of passing through the light emitting end 14 . Transmit out The light is scattered out in a more evenly distributed manner. The light L1 refracted through the light guiding surface 141 is directly projected to the cover 20, and part of the light L1 can be diffused through the cover 20 to provide an illumination function of the light-emitting device. When the light L1 is projected onto the cover 20, a part of the reflected light L11 and a part of the refracted light L12 are generated, and then projected onto the light collecting area S in the cover 20 to form an image of the first image A1.

The light path L2 of the light beam L2 generated by the light source 30 is also refracted through the first incident surface 121 and enters the light guide column 10. The light guide column 10 guides the light beam L2 from the first incident surface 121 to the light exit end 14 . The light ray L2 can be transmitted through the light guiding surface 141 of the light emitting end 14 , and the light ray L2 is refracted through the light guiding surface 141 and then erected through the light guiding surface 141 , and is refracted through the light guiding surface 141 . The light L2 is directly projected onto the cover 20, and at this time, a part of the light L2 can be diffused through the cover 20 to provide an illumination function of the light-emitting device. When the light L2 is projected onto the cover 20, a part of the reflected light L21 and a part of the refracted light L22 are generated, and then a part of the light collecting area S projected into the cover 20 constitutes a second image A2. .

The light path of the light L3 generated by the light source 30, the light L3 enters the light guide column 10 through the refraction of the second incident surface 123. When the light L3 is incident on the side of the light guide column 10, the light guide column 10 has a side on the side of the light guide column 10. The side refracting surface 16, so that when the incident angle of the light ray L3 is smaller than the total reflection angle of the side refracting surface 16 of the side of the light guiding column 10, the light ray L3 can be directly transmitted through the refracting of the side refracting surface 16; when the light ray L3 When the incident angle is larger than the total reflection angle of the side refractive surface 16 on the side of the light guide column, the light ray L3 at this time will be side The refracting surface 16 is totally reflected and guided to the light exiting end 14, and the light ray L3 is transmitted through the refracting surface 141 after passing through the light emitting end 14, and the light ray L3 refracted through the light guiding surface 141 is directly projected. To the cover 20, a portion of the light L3 is also emitted directly through the cover 20 to provide an illumination function for the illumination device. When the light L3 is projected onto the cover 20, a part of the reflected light L31 and a part of the refracted light L32 are generated, and then projected to a portion of the light collection area S of the cover 20 to generate a third image A3. .

The positions imaged by the first imaging A1, the second imaging A2, and the third imaging A3 are mainly concentrated in the region of the light collecting region S between the cover 20 and the light guiding column 10, so that the light source 30 can be used. The generated light may be refracted and reflected by the light guiding surface 141 of the light emitting end 14 and the portion of the refractive surface 22 of the cover 20, respectively, and the light collecting area S between the cover 20 and the light guiding column 10 The optical flame image A is generated, and the brightness of the light source 30 changes, the distance between the cover 20 and the light guide column 10 is changed, the appearance shape of the cover 20 is changed, or the angle of the optical flame imaging of the human eye is observed. The shape of the generated optical flame imaging can produce different appearance changes, which can simulate the light and shadow like a candle flame, in addition to improving the aesthetic appearance of the overall shape, and further creating a unique visual and appeal in appearance. effect.

The invention is not intended to limit the invention, and other equivalent modifications or substitutions that are not departing from the spirit of the invention are intended to be included in the appended claims. Within the scope.

1‧‧‧Lighting device

10‧‧‧Light guide

12‧‧‧Into the light end

121‧‧‧first incident surface

123‧‧‧second incident surface

14‧‧‧Lighting end

141‧‧‧Lighting surface

16‧‧‧ side refractive surface

18‧‧‧Lighting section

20‧‧‧ Cover

21‧‧‧ lamp holder

22‧‧‧Refractive surface

30‧‧‧Light source

32‧‧‧Base

A‧‧‧Optical flame imaging

A1‧‧‧first imaging

A2‧‧‧second imaging

A3‧‧‧ third imaging

C‧‧‧ center line

L1, L2, L3‧‧‧ rays

L11, L21, L31‧‧‧ reflected light

L12, L22, L32‧‧‧ reflected light

S‧‧‧Light collection area

I‧‧‧ray projection direction

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional view showing a light-emitting device according to an embodiment of the present invention.

Fig. 2 is a perspective view showing the case where the cover body and the light guide column are separated.

FIG. 3 is a schematic diagram of a light path of a light-emitting device according to an embodiment of the present invention.

1‧‧‧Lighting device

10‧‧‧Light guide

12‧‧‧Into the light end

121‧‧‧first incident surface

123‧‧‧second incident surface

14‧‧‧Lighting end

141‧‧‧Lighting surface

16‧‧‧ side refractive surface

18‧‧‧Lighting section

20‧‧‧ Cover

21‧‧‧ lamp holder

22‧‧‧Refractive surface

30‧‧‧Light source

32‧‧‧Base

Claims (7)

A light-emitting device with optical flame imaging, comprising: a light source for generating a light; a light guide having an light-in end, a light-emitting end opposite to the light-in end, and the light-incident end a light guiding section between the light emitting ends, wherein the light emitting end has a light guiding surface, and a position adjacent to a top end of the center line of the light emitting end of the light guiding column is defined as a light collecting area; a cover covering the top of the light socket And a predetermined spacing between the light guiding column and the light emitting end of the light guiding column; the light generated by the light source is incident on the light incident end of the light guiding column, and after the light guiding segment passes through the light guiding segment The light guiding surface of the end is guided to the light collecting area, and the light is further reflected by the cover body, and an optical flame image is formed at a light collecting area at the top end of the light emitting end of the light guiding rod. The illuminating device with optical flame imaging as described in claim 1, wherein the hood is composed of a transparent material. The illuminating device with optical flame imaging as described in claim 1, wherein the inner surface of the cover is a refractive surface. The illuminating device with optical flame imaging as described in claim 1, wherein the light guiding surface of the light guiding column is a concave curved surface. The illuminating device with optical flame imaging as described in claim 1, wherein the light source is an LED illuminating device. An illuminating device with optical flame imaging, comprising: a lamp holder; an LED illuminating device disposed at the lamp holder for generating a light beam projected to a light collecting area in a light projection direction; a cover body, Covering the top of the light source and having a predetermined distance from the light source, the cover body is composed of a transparent material, and at least a portion of the inner surface of the cover body is a refractive surface; the LED light-emitting device After the generated light is projected into the light collecting region, the light is again reflected and refracted by the refractive surface of the cover, and an optical flame imaging is formed in the light collecting region. The illuminating device with optical flame imaging as described in claim 6 wherein the light source is an LED illuminating device.