TWI524036B - Light apparatus - Google Patents

Description

Lamp

The present invention relates to a luminaire, and more particularly to a luminaire that provides a range of illumination at a large exit angle.

In general home life, there are many types and types of lighting devices. Some lighting devices are fixedly mounted on a wall or ceiling for fixed installation (such as ceiling lights) to provide indoor lighting. Some lighting devices provide only local illumination for portable devices such as desk lamps, flashlights, and warning lights.

Since the Light Emitting Diode (LED) has the advantages of high efficiency, long life, and is not easily damaged, such as a conventional light source (such as a bulb), the light source in the illumination device is replaced by a conventional light source. In the new light source of the polar body, although the light-emitting diode has high directivity, it can provide sufficient illumination brightness in a specific direction, but also, when the light-emitting diode is used as a new light source of the illumination device, the light-emitting diode can be The angle of the exit surface provided (e.g., about 120 degrees) is inferior to the angle of the exit surface (e.g., about 270 degrees) provided by a conventional light source (e.g., a light bulb) as a source of illumination.

Therefore, how to provide a solution that enables the lighting device to have a new light source of a light-emitting diode (LED), and also effectively provide a large angle of the exit surface, is one of the current important research and development topics, and has become There is an urgent need for improvement in the current related field.

Therefore, the present invention discloses a luminaire for providing a light-emitting range of a large light-emitting angle (for example, about 270 degrees), thereby meeting lighting requirements and improving lighting quality.

According to an embodiment of the invention, a light fixture includes at least a body, a light source, a lamp cover and a reflector. The light source is disposed on the base. The lampshade cover body and the light source. The lampshade is divided into a top portion and an outer edge portion, wherein the outer edge portion surrounds the top portion. The reflector is located between the light source and the lamp cover, and the reflector comprises a light transmitting region and at least one reflective arc surface. One of the light-transmitting area alignment light sources is mainly the optical axis normal to expose the light to the top of the lampshade. The reflective arc surface surrounds the light transmitting area for guiding light to the outer edge of the lamp cover.

In summary, the lamp of the present invention can not only adopt a light source with directivity (such as a light-emitting diode), but also provide a light-emitting range of a large light-emitting angle (for example, about 270 degrees). As such, the technical solution of the present invention has obvious advantages and advantageous effects compared with the prior art. With the above technical solutions, considerable technological advancement and practicability can be achieved, and the industrial use value is widely used.

The above description and the following embodiments will be described in detail below with reference to the embodiments, and further explanation of the present invention.

100, 101‧‧‧ lamps

200‧‧‧ body

210‧‧‧Cylinder body

211‧‧‧ top surface

212‧‧‧Settlement

213‧‧‧ bottom

214‧‧‧circular surface

215‧‧‧First threaded installation

216‧‧‧heat fins

300‧‧‧Light source

400‧‧‧shade

410‧‧‧ top

420‧‧‧The outer edge

500, 501‧‧ ‧ reflector

510‧‧‧ dish

520‧‧‧ ‧ body

521‧‧‧Connecting feet

530‧‧‧Lighting area

540‧‧‧Reflective curved surface

541, 543‧‧‧ first paragraph curved surface

542, 544‧‧‧2nd curved surface

545‧‧‧ breach

A‧‧‧ main optical axis normal

C‧‧‧cut points

D1, D2‧‧‧ vertical distance

K‧‧‧ distance

L1, L21, L22‧‧‧ rays

X, Y‧‧‧ axial

FIG. 1A is a schematic view showing the appearance of the lamp of the present invention in a first embodiment.

Figure 1B is a cross-sectional view of the lamp of the present invention taken along line X of Figure 1A.

FIG. 1C is a schematic diagram showing the motion of light in FIG. 1B.

FIG. 2A is a schematic view showing the appearance of the lamp of the present invention in a second embodiment.

Figure 2B is a cross-sectional view of the lamp of the present invention taken along line 2A in the axial direction X.

FIG. 2C is a schematic diagram showing the motion of light in FIG. 2B.

Figure 3 is a plan view showing other variations of the reflector of the lamp of the present invention.

Please refer to Figures 1A and 1B. FIG. 1A is a schematic view showing the appearance of the lamp 100 of the present invention in a first embodiment. FIG. 1B is a cross-sectional view of the lamp 100 of the present invention taken along line X of FIG. 1A.

The lamp 100 of the present invention comprises at least a body 200, a light source 300, a lamp cover 400 and a reflector 500. The light source 300 is located on the base 200. The lamp cover 400 covers the base 200 and the light source 300. The reflector 500 is located between the lamp cover 400 and the base 200, and can face the light source 300, that is, the reflector 500 is positioned on one of the main light-emitting axes of the light source 300, and the false idea line (hereinafter referred to as the main light-axis normal A) extends to the lampshade. On the path of the top 410 of 400.

The reflective member 500 can be, for example, a single piece or a multi-piece, having a light transmitting region 530 and one or more reflective curved surfaces 540. The light transmissive region 530 is aligned with the top 410 of the globe 400. The reflective arc surface 540 surrounds the light transmissive region 530.

Please refer to Figures 1B and 1C. FIG. 1C is a schematic diagram showing the motion of light in FIG. 1B.

Thus, the light of the light source 300 can travel to the top 410 of the lampshade 400 (such as the light L1) via the light transmitting region 530, and can travel to the outer edge portion 420 of the periphery of the lamp cover 400 via the guiding of the reflective curved surface 540. Such as light L21, L22), wherein the light ray L22 can be emitted from the region where the outer edge portion 420 is close to the seat body 200 in a direction gradually deviating from the seat body 200, so that a light-emitting range that provides a large light-emitting angle (for example, about 270 degrees) can be realized.

Furthermore, the present invention includes a variation of each of the above embodiments, in which the outer edge portion 420 of the lampshade 400 surrounds the top portion 410, having at least one parabolic feature, such as a dome, a spade, or a hemisphere. Or drop or the like.

The maximum circular sectional area of the lamp cover 400 at one of the outer edge portions 420 can be designed to be larger than the largest cross-sectional area of one of the seat bodies 200, that is, the cutting point C of the lamp cover 400 having the largest circular sectional area extends a distance from the edge of the base body 200. K (Fig. 1B). Thus, the outer edge portion 420 protrudes from the edge of the base 200 to provide more light L22 toward the direction of the lamp cover 400, thereby increasing the light-emitting range (FIG. 1C).

In addition, the vertical distance D1 of the reflective curved surface 540 relative to the one of the bases 200 may be designed to be not less than a vertical distance D2 of one of the points C having the largest circular sectional area of the outer edge portion 420 of the lamp cover 400 (FIG. 1B). .

In another variation of the present invention, as long as the reflecting member 500 is located on the path of the main optical axis normal A of the light source 300 to the top 410 of the lamp cover 400, the reflecting member 500 is not limited to the top 410, the outer edge portion 420 or the seat connecting the lamp cover 400. On body 200.

For example, in the first embodiment, the base 200 of the lamp 100 is commonly referred to as a "main base" including a cylindrical body 210, a top surface 211, a bottom surface 213, and a circumferential surface 214. The top surface 211 and the bottom surface 213 are located on two corresponding surfaces of the cylindrical body 210, and the circumferential surface 214 is located on the cylindrical body 210. The surface is between the top surface 211 and the bottom surface 213. A plurality of first threaded mounting portions 215 are defined on the circumferential surface 214. The first threaded mounting portions 215 can cooperate with a second threaded mounting portion (not shown) of a bulb holder for assembly onto the bulb holder. In addition, the circumferential surface 214 of the base 200 may be provided with a plurality of heat dissipation fins 216 which are equidistantly arranged on the circumferential surface 214 of the base 200.

The light source 300 is, for example, a stacked surface light source 300 formed by a plurality of light emitting chips being collectively packaged in a package. The stacked surface light source 300 is mounted on one of the seating faces 212 of the seat body 200. The light source 300 is physically connected and electrically connected to the base 200 for electrically connecting the above-mentioned bulb holder by the base 200. The lamp cover 400 is, for example, in the shape of a crucible, and can be mounted on the top surface 211 (shown in FIG. 1A) or the circumferential surface of the base 200 to cover the base 200 and the light source 300 such that the light source 300 is located in the space of the lamp cover 400. In a variable example, the lampshade 400 is, for example, a plastic or glass material, such as transparent or translucent (e.g., matte).

Specifically, the reflective member 500 of the first embodiment is disposed on the inner surface of the globe 400, preferably on the inner surface of the top portion 410 of the globe 400, and is aligned with the position of the light source 300. The reflecting member 500 has a disk shape and includes a disk body 510, a light transmitting region 530 and a reflecting curved surface 540. The disk 510 is coupled to the inner surface of the top portion 410 of the lamp cover 400. The light transmitting region 530 is located on the disk body 510 (for example, the central position of the disk body 510), and is aligned with the main light axis normal A of the light source 300 for outputting the light L1 of the light source 300 via the top portion 410. In a variation of the first embodiment, the light transmitting region 530 can be, for example, an opening or a transparent body (such as a light transmissive plastic). When the light transmitting region 530 is an opening, the lamp cover 400 is made The fixing bolt is mounted in this opening (Fig. 1B).

The reflective curved surface 540 is located on one side of the disk body 510 facing the seat body 200 and surrounds the light transmitting area 530 for guiding the light rays L21, L22 of the light source 300 to the outer edge portion 420 so that light can be emitted from the outer edge portion 420. As shown in FIG. 1B, since the vertical distance D1 of the reflective curved surface 540 with respect to the one of the bases 200 is greater than the vertical distance D2 of one of the points C having the largest circular section area of the outer edge portion 420 of the globe 400, the reflection arc is The face 540 can guide (reflect) the light L22 to protrude from the edge of the seat 200 via the outer edge portion 420 toward the direction gradually offset from the seat 200.

In other variations of the first embodiment, the reflective curved surface 540 may be, for example, in the shape of a circular arc and have a curved surface of a single curvature; or the reflective curved surface may be, for example, in a multi-segmented arc, such that it has multiple (for example, two) Or three curved surfaces of different curvatures, for example, the curved curved surface 540 includes at least a first curved surface 541 and a second curved surface 542. The first curved surface 541 is closer to the light transmitting portion 530 than the second curved surface 542, and the first curved surface 541 can reflect the light L21 toward the surface of the parallel positioning surface 212 (the axial direction Y) is output by the outer edge portion 420; The two-stage curved surface 542 can reflect the light ray L22 such that the light ray L22 can be emitted from the region of the outer edge portion 420 close to the seat body 200 toward the direction gradually deviating from the seat body 200.

Further, the reflecting member is not limited to the manner in which it is made. The reflecting member can be sputtered, for example, on a metal or plastic surface, so that a metal plating layer having a high reflection coefficient can be formed on the surface of the reflecting arc surface; or, the reflecting member can be directly stamped by a highly reflective metal, for direct formation. Reflecting the arc surface. In addition, the reflecting member can also atomize the reflecting arc surface, for example. Furthermore, the reflecting member is not limited to the inner surface of the lamp cover, for example, the hot-melt column can be The combination of ultrasonic vibration, glue bonding, integral molding, thread locking or screw locking is achieved. However, the manner in which the reflecting member is disposed on the inner surface of the lamp cover is not critical in the present case, and therefore will not be described herein.

Please refer to Figures 2A to 2C. 2A is a schematic view showing the appearance of the lamp 101 of the present invention in a second embodiment. 2B is a cross-sectional view of the lamp 101 of the present invention taken along line 2A in the axial direction X. FIG. 2C is a schematic diagram showing the motion of light in FIG. 2B.

For example, in the second embodiment, the contents of the base 200, the light source 300, and the lamp cover 400 of the lamp 101 can be referred to the first embodiment, and details are not described herein.

Specifically, the reflector 501 of the second embodiment is erected on the seating surface 212 of the base 200. Preferably, the reflector 500 is erected on the seating surface 212 of the base 200, and the position of the light source 300 is aligned with Light source 300 maintains a distance. The reflector 501 includes a frame 520, a light transmissive area 530, and a reflective arc surface 540. The frame body 520 has one or more connecting legs 521. The connecting legs 521 support the frame body 520 on the mounting surface 212 such that the frame body 520 is kept at a distance from the base body 200 (ie, the light source 300). The light transmitting region 530 is located on the frame 520 (for example, at a central position of the frame 520), and is aligned with the main light axis normal A of the light source 300 for outputting the light L1 of the light source 300 via the top portion 410. In addition, since the connecting legs 521 are located on the path of the reflecting curved surface 540 reflecting the light rays L21 and L22 to the outer edge portion 420 of the lamp cover 400, the connecting legs 521 can have high reflection characteristics (for example, metal) or can transmit light. Characteristics (such as light guides).

In a variation of the second embodiment, the light transmitting region 530 can be, for example, an opening. (as shown) or a transparent body (such as a permeable plastic) for directing light L1 from light source 300 to top 410. When the light transmissive region 530 is an opening, the inner wall 531 of the opening is inclined to help guide more light L1 to the top portion 410 of the globe 400 (Fig. 2B).

The reflective arc surface 540 is located on one side of the frame body 520 facing the base body 200 and surrounds the light transmission area 530 for guiding the light rays L21, L22 of the light source 300 to the outer edge portion 420 so that light can be emitted from the outer edge portion 420.

In a variation of the second embodiment, the reflective arc surface 540 corresponds to the most prominent tangent point C of the lampshade 400. More specifically, the intermediate point position of one of the reflective arc surfaces 540 is the same as the tangent point C of the maximum circular section area of the lampshade 400. The horizontal height means that the intermediate point position of the reflecting curved surface 540 is higher than the tangent point C of the maximum circular sectional area of the globe 400.

Therefore, as shown in FIG. 2B, since the vertical distance D1 of the reflective curved surface 540 with respect to the one of the bases 200 is equal to the vertical distance D2 of the tangent point C having the largest circular sectional area of the outer edge portion 420 of the globe 400, the reflection is The curved surface 540 can guide (reflect) the light L2 to protrude from the edge of the seat 200 via the outer edge portion 420 toward the direction gradually offset from the seat 200.

In other variations of the second embodiment, the reflective curved surface may be, for example, in the shape of a circular arc and have a curved surface of a single curvature; or the reflective curved surface may be, for example, in a multi-segmented arc, such that it has multiple (eg, 2 or The three curved surfaces of different curvatures, such as the reflective curved surface 540, include at least a first curved surface 543 and a second curved surface 544. The first curved surface 543 is closer to the light transmitting portion 530 than the second curved surface 544. The first curved surface 543 can reflect the light L21 toward the surface of the parallel positioning surface 212 (the axial direction Y) is output from the outer edge portion 420; Two sections of curved surface 544 The light ray L22 can be reflected such that the light ray L22 can be emitted from the region where the outer edge portion 420 is close to the seat body 200 toward the direction gradually deviating from the seat body 200.

Further, the reflecting member 500 is not limited to the manner in which it is made. The reflective member 500 can be sputtered, for example, on a metal or plastic surface, so that a metal plating layer having a high reflection coefficient can be formed on the surface of the reflective curved surface 540; or the reflective member 500 can be directly stamped from a highly reflective metal, for example. It is formed directly on the reflective arc surface 540. In addition, the reflective member 500 can also perform atomization processing on the reflective curved surface 540, for example. Furthermore, the reflector 500 is not limited to the placement surface 212 of the base 200, such as a combination of a hot-melt column, an ultrasonic vibration bond, an adhesive bond, an integral molding, a card joint, a thread lock, or a screw lock. The manner is achieved. However, the manner in which the reflecting member 500 is disposed on the seating surface 212 of the base 200 is not critical to the present case, and therefore will not be described herein.

However, the first embodiment and the second embodiment described above are merely examples, and the present invention is not limited thereto. For example, the reflective member 500 of the present invention may be a collection of a plurality of sub-assemblies that may be disposed together on the inner surface of the lamp cover 400 or on the placement surface of the base 200. Each of the sub-assemblies has a single reflective arc surface 540, and the reflective arc surfaces 540 collectively surround a passage defined as the light-transmitting region 530.

In addition, please refer to Figure 1B and Figure 3. FIG. 3 is a plan view showing the reflection member 500 of the lamp 100 of the present invention in other variations.

In order to enhance the light of the top portion 410 of the lampshade 400 to prevent the reflector member 500 from being apparently exposed on the lampshade 400, the present invention includes other variations of the above-described embodiments. The reflector member 500 further includes a plurality of breaches 545, such breaches 545. Arranged at intervals on the reflective arc surface 540 and surrounding the light transmissive region 530, thus, Light can output light from source 300 to top portion 410 via respective openings 545.

In the present invention, the light source 300 is not limited to its form, and may be, for example, a Light Emitting Diode (LED), an organic light-emitting diode (OLED), a tube or a bulb. It should be defined that, regardless of whether the light source 300 is a light emitting diode, an organic light emitting diode, a light tube, a light bulb or a stacked surface light source 300, since the light source 300 must have a certain light emitting angle, the main light emitting axis method described in the present application Line A refers to the light having the strongest luminous energy in the light source 300 and is located on the center line of its illumination angle.

In summary, the illuminating device 100 of the present invention can use not only the directional light source 300 (such as the illuminating diode) but also the illuminating range of the large light exiting angle (for example, about 270 degrees). In this way, the lighting demand can be further improved and the lighting quality can be improved.

The present invention is not limited to the embodiments of the present invention, and various modifications and refinements may be made without departing from the spirit and scope of the present invention. This is subject to the definition of the scope of the patent application.

100‧‧‧Lights

200‧‧‧ body

210‧‧‧Cylinder body

211‧‧‧ top surface

212‧‧‧Settlement

213‧‧‧ bottom

214‧‧‧circular surface

215‧‧‧First threaded installation

300‧‧‧Light source

400‧‧‧shade

410‧‧‧ top

420‧‧‧The outer edge

500‧‧‧reflector

510‧‧‧ dish

530‧‧‧Lighting area

540‧‧‧Reflective curved surface

A‧‧‧ main optical axis normal

C‧‧‧cut points

D1, D2‧‧‧ vertical distance

K‧‧‧ distance

X, Y‧‧‧ axial

Claims (9)

A lamp comprising: a body; a light source located on the body; a lamp cover covering the body and the light source, comprising: a top portion; and an outer edge portion surrounding the top portion; and a reflecting member located at One of the light sources is mainly disposed on the path from the normal of the optical axis to the top, and includes: a light transmitting region aligned with the top to expose the light of the light source to the top; and a plurality of reflective curved surfaces surrounding the light transmitting region The light source for guiding the light source to the outer edge portion, wherein the reflective member is a collection of a plurality of sub-assemblies surrounding a passage defined as the light-transmitting region, each of the sub-components All have a single reflective arc. The luminaire of claim 1, wherein one of the lampshades has a maximum circular cross-sectional area that is greater than a largest cross-sectional area of the one of the seats. The luminaire of claim 1, wherein a vertical distance of the reflective arc surface relative to one of the seat bodies is not less than a vertical distance of a point of the largest circular section area of the lampshade. The luminaire of claim 1, wherein the intermediate point position of the reflective curved surface It is at the same height as the largest circular section area of the lampshade. The luminaire of claim 1, wherein the light transmissive area is an opening or a transparent entity. The luminaire of claim 1, wherein the reflecting arc surface has an arc shape and has a curved surface with a single curvature, or the reflecting arc surface has a multi-segment arc shape and has a plurality of curved surfaces with different curvatures. The luminaire of claim 1, wherein the reflector further comprises: a plurality of openings disposed at intervals on the reflective arc surface and surrounding the light transmissive area for exposing light to the top. A luminaire comprising: a body having a seating surface; a light source located on the mounting surface; a lamp cover covering the body and the light source, comprising: a top portion; and an outer edge portion surrounding the top portion; a reflector comprising: a disk body connecting the inner surface of the top of the lamp cover; a light transmissive region located on the disk body and aligned with one of the light source and a main light output axis for exposing the light of the light source to the a top surface; and a reflective arc surface on a side of the disk body facing the body, and surrounding the light transmitting area for guiding the light of the light source to the outer edge portion, The reflector is a collection of a plurality of sub-assemblies surrounding a channel defined as the light-transmissive region, each of the sub-components having a single reflective arc. A luminaire comprising: a body having a seating surface; a light source located on the mounting surface; a lamp cover covering the body and the light source, comprising: a top portion; and an outer edge portion surrounding the top portion; a reflecting member comprising: a frame body standing on the mounting surface and facing the light source; a light transmitting region located on the frame body and aligning one of the light sources with a main light output shaft for exposing the light source a light to the top; and a plurality of reflective arcs surrounding the light transmissive region for guiding the light of the light source to the outer edge portion, wherein the reflective member is a collection of a plurality of sub-components A channel defined as the light transmissive region, each of the sub-components having a single reflective arc surface.