TWI675166B - Lateral led light assembly - Google Patents

Abstract

The invention discloses a lateral light emitting lamp, which includes a base, two circuit boards disposed on the base, two light emitting devices respectively disposed on the circuit board, and two laterally disposed lamps on the two circuit boards. Side light guide. Each side of the light guide can cover the corresponding light emitting device, and each side of the light guide can emit light of the corresponding light emitting device to the side.

Description

Lateral light fixture

The invention relates to a lamp, in particular to a side-lighting lamp.

At present, light can be directed to a side lens or light guide rod, which has been introduced in various forms, such as Taiwan Announcements I479106, I579486, M441094, M433522, M404326, and I545288. The light from a light source can be emitted from the cylindrical surface of any of the foregoing light guide rods to achieve Purpose of lateral glow.

In addition, there are people commonly known as corn lights, such as Taiwanese announcements M476896 and M376716. This corn light uses multiple LED light bars, each light bar has multiple LEDs, and each LED light bar can emit light in different directions. To achieve the purpose of lateral light.

The invention provides a side-emitting light fixture, which includes: a base; two circuit boards, which are respectively arranged on the base and facing in opposite directions; two light-emitting devices, which are respectively arranged on the two circuit boards and are opposite to each other; Light pillars are respectively disposed laterally on the two circuit boards, and each side of the light guide pillar is covered by a corresponding light emitting device. Each side of the light guide pillar has a bottom surface, a cylindrical surface, and a top surface, and the bottom surface faces the corresponding light emitting device. The top surface is a concave surface, and the bottom surface of each side of the light guide rod receives light from the corresponding light emitting device, wherein the top surface of one side of the light guide rod is opposite to the top surface of the other side of the light guide rod, and each side The light guide rod reflects the light incident from the bottom surface to the cylindrical surface and continues to be emitted from the cylindrical surface.

In one embodiment, the two electric devices provided on the base of the present invention are as described above. The boards are opposite to each other, or diagonally opposite, or staggered.

In one embodiment, the two light-emitting devices of the present invention provided on the two circuit boards of the base are opposite to each other, obliquely opposite, or staggered.

In one embodiment, the two light guiding columns on the two circuit boards of the base according to the present invention are opposite to each other, or are diagonally opposite, or the phases are staggered.

In one embodiment, the light guiding rods on the two sides of the present invention are symmetrical or asymmetrical.

The present invention also provides another side-emitting light fixture, which includes: a base; two circuit boards, which are respectively arranged on the base in a heading direction and opposite to each other; a plurality of light-emitting devices, which are respectively arranged on the two circuit boards in two batches, and Opposite; and a plurality of side light guides, which are arranged on the two circuit boards separately in two batches, each side light guide is covered by a corresponding light emitting device, and each side light guide has a bottom surface, a cylindrical surface and a top Surface, the bottom surface faces the corresponding light-emitting device, the top surface is a concave surface, and the bottom surface of each side of the light guide rod receives light from the corresponding light-emitting device, and the top surface of the side light guide on a circuit board is opposite to The top surface of the side light guide on the other circuit board, and each side light guide reflects the light incident from the bottom surface to the cylindrical surface and continues to be emitted from the cylindrical surface. In one embodiment, the light-emitting devices on each circuit board of the present invention are arranged in a circle or form an array, and the side light guides on each circuit board are arranged in a ring or form an array corresponding to the light-emitting devices.

Compared with the prior art, the present invention first adopts a configuration in which two light guide pillars are transversely opposite to each other, so that the light energy of the two light emitting devices is emitted sideways from the cylindrical surfaces of the two light guide pillars, thereby improving the brightness of the side light emission.

1‧‧‧ base

2‧‧‧Circuit Board

3‧‧‧light-emitting device

4, 4a, 4b ‧‧‧ side light guide

41‧‧‧ underside

42‧‧‧Cylinder

43‧‧‧Top

5‧‧‧ transparent shell

G‧‧‧Pitch

FIG. 1 is a perspective view schematically showing a preferred embodiment of the present invention.

Fig. 2 is a partial cross-sectional view of the preferred embodiment.

FIG. 3 is a perspective view of a side guide beam of the preferred embodiment

FIG. 4 is a cross-sectional view of a side guide beam of the preferred embodiment.

Fig. 5 schematically shows the optical path of the preferred embodiment.

Fig. 6 is a sectional view schematically showing another preferred embodiment of the present invention.

FIG. 7 is a sectional view schematically showing still another preferred embodiment of the present invention.

8 and 9 are bottom views of other preferred embodiments of the present invention.

Figures 1 and 2 show a preferred embodiment of a dual lateral light-emitting lamp according to the present invention, which includes a base 1, two circuit boards 2, two light-emitting devices 3, and light guide columns 4 on both sides, and a non-essential transparent Shell 5.

In this embodiment, the entire lamp is in the form of a light bulb, so the base 1 is a conventional screw-type lamp cap and can be screwed into a corresponding conventional lamp holder, but the form of the base 1 is not limited to this, and it can be seen in practice Determined by application requirements.

The two circuit boards 2 are respectively disposed on the base 1 in an oblique direction and are opposite to each other, preferably opposite to each other, but they can also be diagonally opposed or even staggered (for example, left and right staggered). The two light emitting devices 3 are respectively disposed on the two circuit boards 2 and are opposite to each other, preferably opposite to each other, but they can also be diagonally opposite or even staggered (for example, staggered left and right or staggered up and down). Each light-emitting device 3 may preferably use one or more LEDs, and may also use a tungsten filament light bulb or other types of light-emitting devices. The light-emitting wavelength of each light-emitting device 3 is not limited, and is preferably in the visible light range. The light emission wavelengths of the two light emitting devices 3 may be the same or different. In this embodiment, the distance between the two light-emitting devices 3 is about 9-10 mm, but it is not limited to this, because this distance will increase or decrease according to the size of the required lamp.

The light guiding rods 4 on both sides are respectively disposed laterally on the two circuit boards 2 and are opposite, preferably facing each other, but can also be diagonally opposite or even staggered (for example, staggered left and right or staggered up and down). The light guiding pillars 4 on each side are molded from light-transmitting plastic, and can also be ground and shaped by light-transmitting glass. Each side of the light guide 4 is covered with a corresponding light emitting device 3. As shown in FIGS. 3 and 4, each side of the light guide 4 has a bottom surface 41, a cylindrical surface 42 and a top surface 43. The bottom surface 1 faces the corresponding light-emitting device 3, and the top surface 43 is a concave surface, for example A concave conical surface. In this embodiment, the maximum diameter of the light guide 4 on each side is about 5 mm, but it is not limited thereto, and may be determined according to the size of the required lamp. In addition, the light guiding rods 4 on both sides may be the same and present a symmetrical form as shown in the figure, but may be different and present an asymmetric form.

As shown in FIG. 5, the bottom surface 41 of each light guide column 4 receives the light 31 of the corresponding light emitting device 3. The top surface 43 of one light guide column 4 is directly opposite the top surface 43 of the other light guide column 4. Each side of the light guide 4 reflects the light 31 incident from the bottom surface 41 to the cylindrical surface 42 and continues to be emitted from the cylindrical surface 42. Among them, not all the light emitted by the light-emitting device 3 is emitted from the cylindrical surface 42, in fact, a small part of the light may be emitted from other surfaces. Since most of the light is emitted sideways from the cylindrical surface 42 of the light guide 4 on both sides, the brightness of the lateral light emission can be improved. In addition, since the direction of light emission is in the axial direction of the base 1, as shown in FIG. 2, the amount of light emitted from the top, bottom, and front is large, and the amount of light emitted from the left and right sides is small. A specific light emission method like this is currently applicable to horizontal light Luminaires that require more light than required in the vertical direction, such as direction lights or headlights.

In this embodiment, as shown in FIG. 4, a distance G between a top edge of the light guide 4 on one side and a top edge of the light guide 4 on the other side is preferably 0.1 to 5 mm, and more preferably 0.1 to 2mm, but not limited to this, depending on the size of the required lamp. In fact, the smaller the gap G is, the better, even if the two top edges are close to each other. However, considering the convenience of assembly, a gap G with a certain width should be kept between the two top edges.

Furthermore, the form of the above-mentioned side light guide 4 can also be changed to the side light guide 4a shown in FIG. 6 or the side light guide 4b shown in FIG. 7 or even other forms. For the detailed description of the foregoing two structures, please refer to Taiwan Bulletin I479106 and I579486 patents, which will not be described in detail.

The above embodiments only show the opposite pair of side light guides and a pair of light-emitting devices, but a configuration of a plurality of pairs of side light guides and a plurality of light-emitting devices may be adopted instead, for example, as shown in FIG. 8 or FIG. 9. In addition, in the above-mentioned arrangement of multiple pairs, the light-emitting devices on each circuit board may be arranged in a circle or form an array, and the side light guides on each circuit board may be arranged or formed in a ring corresponding to the light-emitting devices. An array.

Claims (7)

A lateral lighting fixture includes:
A base
Two circuit boards are respectively arranged on the base and facing each other;
Two light emitting devices are respectively disposed on the two circuit boards and are opposite to each other; and two sides of the light guide are respectively disposed on the two circuit boards horizontally, and each side of the light guide is covered by the corresponding light emitting device, and each side of the light guide has one A bottom surface, a cylindrical surface, and a top surface, the bottom surface facing the corresponding light-emitting device, the top surface is a concave surface, each side of the light guide column receives light from the corresponding light-emitting device, and one side of the light guide device The top surface is opposite to the top surface of the light guide on the other side, and each side of the light guide reflects the light incident from the bottom surface to the cylindrical surface and continues to be emitted from the cylindrical surface to the surrounding space. The lateral light-emitting lamp according to claim 1, wherein the two circuit boards arranged on the base are opposite to each other, or are obliquely opposite, or are staggered. The lateral light-emitting lamp according to claim 1, wherein the two light-emitting devices provided on the two circuit boards of the base are opposite to each other, obliquely opposite, or staggered. The lateral light-emitting lamp according to claim 3, wherein the two sides of the light guides provided on the two circuit boards of the base are directly opposite, obliquely opposite, or staggered. The side-emitting light fixture as described in claim 1, wherein the two sides of the light guiding column are in a symmetrical form or an asymmetric form. A lateral lighting fixture includes:
A base
Two circuit boards are respectively arranged on the base and facing each other;
A plurality of light emitting devices are arranged on the two circuit boards in two batches and are opposite to each other; and a plurality of side light guides are arranged on the two circuit boards in two batches and each side is covered by the corresponding light emitting device on each side. Each side of the light guide has a bottom surface, a cylindrical surface, and a top surface. The bottom surface faces the corresponding light-emitting device. The top surface is a concave surface. The bottom surface of each side of the light guide column receives light from the corresponding light-emitting device. The top surface of the side light guide on one circuit board is opposite to the top surface of the side light guide on the other circuit board, and each side light guide reflects the light incident from the bottom surface to the cylinder and continues Shoot from this cylinder to the surrounding space. The side-emitting light fixture according to claim 6, wherein the light-emitting devices on each circuit board are arranged in a circle or form an array, and the side light guides on each circuit board are arranged in a ring corresponding to the light-emitting devices or Form an array.