TWI412708B - Illuminating apparatus - Google Patents

Abstract

An illuminating apparatus comprises a body, a light emitting member and a light guiding cover. The light guiding cover is disposed on the body, the light guiding cover includes a light transmission part. A first reflection part is disposed on the body or the light guiding cover. The light emitting member lies between the first reflection part and the light transmission part. The first reflection part includes a first reflection surface opposite to the light emitting member and the light transmission part. The light guiding cover includes a second reflection part opposite to the light emitting member as well as adjacent to the light transmission part. The second reflection part includes a second reflection surface opposite to the light emitting member. The first reflection surface and the second reflection surface are at an acute angle with each other. A light guiding cover for illuminating apparatus is also provided.

Description

Lighting device

The present invention relates to lighting technology, and more particularly to a lighting device and a light guiding head cover for the lighting device.

With the development of lighting technology, lighting equipment suitable for various occasions has been developed, such as fluorescent lamps for home lighting, table lamps, flashlights for field lighting, mountaineering headlights, surgical spotlights for special lighting applications, car headlights, etc. See "Solid-State Lighting: Toward Superior Illumination" by Michael S. Shur et al., Proceedings of the IEEE, Vol. 93, No. 10 (October 2005).

However, a conventional lighting fixture, such as a flashlight, generally has a light source corresponding to a light guide head cover, and has only a single direction when projecting light, and therefore, the flashlight must be rotated so that the light of the flashlight source is directed at the object to be illuminated. Illuminate the object. When repairing the machine or looking for objects in the slit, there are often dead corners where the outside light cannot directly illuminate. It is necessary to use a flashlight to assist the illumination. However, the projection light of the general flashlight is relatively divergent, and the light cannot be concentratedly projected to a specific corner or gap. Causes the human eye to be unable to see the object clearly. In this way, the application range of the lighting fixture is limited, so that different types of lighting fixtures must be used in different lighting environments, so that various lighting fixtures need to be prepared, and the frequency of use thereof is low, resulting in Unnecessary idle and wasted.

In view of this, it is necessary to provide a lighting device that can adapt to a variety of lighting environments and that can change the shape and direction of the projected light.

A lighting device and a light guiding head cover for the lighting device will be described below with reference to specific embodiments.

A lighting device includes a body, an illuminant, and a light guide head cover. The light guide head cover is disposed on the body, and the light guide head cover has a light exit portion. The main body or the light guide head cover is provided with a first reflecting portion, and the illuminating body is located between the first reflecting portion and the light emitting portion, and the first reflecting portion has a first reflecting surface opposite to the illuminating body and the light emitting portion. The light guiding head cover includes a second reflecting portion, the second reflecting portion is opposite to the light emitting body and adjacent to the light emitting portion, and the second reflecting portion has a second reflecting surface opposite to the light emitting body. The angle between the second reflecting surface and the first reflecting surface is an acute angle.

A light guiding head cover having a light emitting portion, a first reflecting portion and a second reflecting portion, wherein the light emitting portion is located at one end of the light guiding head cover, and the first reflecting portion is located at the other end opposite to the light emitting portion, and the first reflecting portion has a light emitting portion opposite to the light emitting portion a first reflecting surface, the second reflecting portion is located between the first reflecting portion and the light emitting portion, the second reflecting portion has a second reflecting surface adjacent to the light emitting portion, and the angle between the second reflecting surface and the first reflecting surface is an acute angle .

Compared with the prior art, the illumination device of the present technical solution has the following advantages: firstly, the light that illuminates the surface of the illuminant by the first reflecting surface of the first reflecting portion is more reflected to the light exit portion of the light guiding head cover, Increasing the light utilization efficiency; secondly, using the second reflecting surface at an acute angle to the first reflecting surface to illuminate the light emitted by the illuminant And the light reflected by the first reflecting surface to the surface thereof is reflected to the light exiting portion of the light guiding head cover, thereby improving the light utilization efficiency and changing the light emitting direction and range.

10, 210‧‧‧ ontology

100, 200‧‧‧ lighting devices

20, 220, 420, 620‧ ‧ illuminants

30, 330, 430, 530, 630‧‧ ‧ light head cover

12, 212‧‧‧ first end face

14‧‧‧second end face

121‧‧‧First electrode

122‧‧‧second electrode

16‧‧‧ snap groove

162‧‧‧Sliding section

164‧‧‧Care Department

221‧‧‧ third electrode

222‧‧‧fourth electrode

31‧‧‧ Cover

321, 5321‧‧‧ first reflective surface

33, 333, 533 ‧ ‧ second reflection

34, 334, 434, 534 ‧ ‧ third reflection

35, 435, 535, 635 ‧ ‧ light department

312‧‧‧ inner wall

301‧‧‧ receiving hole

302‧‧‧ end face

304‧‧‧卡合块

331‧‧‧Second reflective surface

341, 4341, 5341‧‧‧ third reflecting surface

32, 232, 332, 532, 632‧‧‧ first reflection

636‧‧‧First lens

637‧‧‧second lens

1 is an exploded view of a lighting device provided by a first embodiment of the present technical solution.

FIG. 2 is a combination diagram of a lighting device provided by a first embodiment of the present technical solution.

3 is a cross-sectional view of a light guide head cover of a lighting device according to a first embodiment of the present technical solution.

4 is a cross-sectional view of a lighting device provided by a second embodiment of the present technical solution.

5 is a cross-sectional view of a light guide head cover of a lighting device according to a third embodiment of the present technical solution.

6 is a cross-sectional view of a light guiding head cover of a lighting device according to a fourth embodiment of the present technical solution.

7 is a cross-sectional view of a light guiding head cover of a lighting device provided by a fifth embodiment of the present technical solution.

8 is a cross-sectional view of a light guide head cover of a lighting device according to a sixth embodiment of the present technology.

The lighting device of the present technical solution will be further described in detail below with reference to the accompanying drawings and the embodiments.

Referring to FIG. 1 to FIG. 3 , the illumination device 100 provided by the first embodiment of the present invention includes a body 10 , an illuminant 20 , and a light guide cover 30 . The light guide cover 30 is fixed The illuminator 20 is fixed to the light guide head cover 30 for guiding the light emitted by the illuminant 20 .

The body 10 is used to provide power to the illuminator 20. For example, the body 10 can house a dry battery, a battery, or the like. The body 10 has a first end face 12 and a second end face 14 opposite the first end face 12. The first end face 12 is adjacent to the light guide cap 30. The first end surface 12 is provided with a first electrode 121 and a second electrode 122, and the first electrode 121 and the second electrode 122 have opposite polarities. The body 10 has an engaging groove 16 extending from the first end surface 12 along the surface of the body 10 away from the first end surface 12 to form a sliding portion 162 extending from the sliding portion 162 in the circumferential direction of the body 10 to form an engaging portion 164 . The number of the engagement slots 16 is at least one. In this embodiment, the number of the engaging grooves 16 is three.

The illuminator 20 is fixed in the light guide cap 30 for emitting light. The illuminant 20 is provided with a third electrode 221 and a fourth electrode 222 near one side of the body 10. The third electrode 221 and the fourth electrode 222 have opposite polarities, the third electrode 221 has the same polarity as the first electrode 121, and the fourth electrode 222 and the second electrode 122 have the same polarity. After the light guide head cover 30 is engaged with the main body 10, the third electrode 221 is in contact with the first electrode 121, and the fourth electrode 222 is in contact with the second electrode 122 to facilitate the power supply of the body 10 to the illuminant 20. The illuminant 20 can be an ordinary light bulb, or can be a Light Emitting Diode (LED) or a light emitting diode array. In this embodiment, the illuminant 20 is a light emitting diode.

The light guide head cover 30 includes a cover body 31, a first reflection portion 32, a second reflection portion 33, a third reflection portion 34, and a light exit portion 35.

The cover 31 has an inner wall 312. The inner wall 312 is enclosed to form a receiving hole 301. The cover 31 There is an end face 302. The end face 302 is opposite the first end face 12 of the body 10. An engaging block 304 is disposed in the receiving hole 301. The engaging block 304 is disposed perpendicularly from the end surface 302 to the inner wall 312 of the cover 31. The engaging block 304 is engaged with the engaging groove 16 , and the engaging block 304 can enter the engaging portion 164 via the sliding portion 162 and can be engaged with the engaging portion 164 to fix the light guiding head cover 30 to the body 10 . .

The first reflecting portion 32 is fixed in the lid body 31, and the illuminating body 20 is located between the first reflecting portion 32 and the light emitting portion 35. The first reflecting portion 32 has a first reflecting surface 321 that faces the illuminator 20 and the light exit portion 35. The first reflecting surface 321 is for reflecting light that is incident on the surface thereof. The illuminator 20 is disposed at a central position of the first reflecting surface 321 . In this embodiment, the first reflecting surface 321 is a mirror surface structure.

The second reflecting portion 33 is fixed integrally with the third reflecting portion 34. The second reflection portion 33 faces the illuminator 20 and is adjacent to the light exit portion 35. The second reflection portion 33 has a second reflection surface 331 that faces the illuminator 20 and is adjacent to the light exit portion 35. The second reflecting surface 331 is also a mirror structure. The angle θ between the second reflecting surface 331 and the first reflecting surface 321 is an acute angle. Preferably, the angle θ between the second reflecting surface 331 and the first reflecting surface 321 ranges between 25° and 75°.

The third reflection portion 34 is connected and fixed to the first reflection portion 32. The third reflection portion 34 is located between the first reflection portion 32 and the light exit portion 35 and opposed to the second reflection portion 33. The third reflecting portion 34 has a third reflecting surface 341 that faces the illuminator 20 and the second reflecting surface 331. The third reflecting surface 341 is perpendicularly connected to the first reflecting surface 321 . The third reflecting surface 341 is also connected to the second reflecting surface 331 , and the angle between the third reflecting surface 341 and the second reflecting surface 331 is an obtuse angle.

The light exiting portion 35 faces the first reflecting portion 32, and the light emitting body 20 is disposed opposite to the light emitting portion 35. Further, the light-emitting portion 35 and the first reflection portion 32 are located on the opposite side of the illuminator 20, and the light-emitting portion 35 and the second reflection portion 33 are located on the same side of the illuminator 20. The light exiting portion 35 is configured to emit light emitted by the illuminator 20 and light reflected by the first reflecting surface 321, the second reflecting surface 331, and the third reflecting surface 341. In the present embodiment, the light exiting portion 35 is a slit region formed by the second reflecting portion 33 and the third reflecting portion 34, and the light emitted from the light emitting portion 35 is approximately a linear light source.

Referring to FIG. 4 , the illuminating device 200 provided by the second embodiment of the present invention is substantially the same as the illuminating device 100 provided by the first embodiment, except that the first reflecting portion 232 is disposed on the first end surface 212 of the body 210 . The illuminant 220 is disposed on the first reflecting portion 232 of the body 210.

Referring to FIG. 5, the light guide head cover 330 of the illumination device provided by the third embodiment of the present invention is substantially the same as the light guide head cover 30 provided by the first embodiment, except that the third reflection portion 334 and the first reflection portion are different. The portion 332 is connected and fixed, and the second reflecting portion 333 is directly connected and fixed to the first reflecting portion 332.

Referring to FIG. 6 , the light guide head cover 430 of the illumination device provided by the fourth embodiment of the present invention is substantially the same as the light guide head cover 330 provided by the third embodiment, except that the third reflection of the third reflection portion 434 is The face 4341 is a curved surface, and the light exit portion 435 is disposed at an intermediate position opposite to the illuminator 420.

Referring to FIG. 7, the light guide head cover 530 of the illumination device provided by the fifth embodiment of the present invention is substantially the same as the light guide head cover 430 provided by the fourth embodiment, except that the third reflection of the third reflection portion 534 is The face 5341 is a flat surface, and the third reflective surface 5341 The angle α between the first reflecting surface 5321 of the first reflecting portion 532 is an acute angle. Preferably, the angle α ranges between 25° and 75°. The light exiting portion 535 is a slit region formed by the second reflecting portion 533 and the third reflecting portion 534, and the light emitted through the light emitting portion 535 is also approximately a linear light source.

Referring to FIG. 8 , the light guide head cover 630 of the illumination device provided by the sixth embodiment of the present invention is substantially the same as the light guide head cover 30 provided by the first embodiment, except that the light guide head cover 630 further includes a first lens. 636 and second lens 637. The first lens 636 is disposed in the light exiting portion 635 for diverging or collecting light. The second lens 637 is disposed between the first lens 636 and the illuminant 620 for condensing the light emitted by the illuminant 620 and the light reflected by the first reflecting portion 632. Therefore, the light emitted through the first lens 636 in the light exit portion 635 can be concentrated in a certain area or diverged to a set irradiation range as needed. The material of the first lens 636 and the second lens 637 is plastic or glass. Of course, a plurality of lenses may be disposed in the light guide head cover 630 according to the required illumination range. For example, a set of light guide head covers 630 having various lens combinations can be designed such that their projection angles are 10°, 15°, 20°, 25°, 30°, 45°, 60°, 90°, 120°, and 150, respectively. °, in order to facilitate the user to replace the light guide head cover 630 with different projection angles according to different environments.

It can be understood that, since the illuminating device adopts the locking and fixing manner of the main body and the light guiding head cover, the light guiding head cover in the plural embodiments of the technical solution can be conveniently replaced to change the shape or direction of the light emission, thereby being adaptable to various lighting environments. need. In addition, the body and the light guide head cover may also be fixed by screwing.

Of course, the light exiting portion may have a shape such as a rectangle, an ellipse, a heart, an arc, or a ring, but is not limited to the above shape. The light guide head can reflect or fold the light After the shot, it is emitted through the light exit portion.

Compared with the prior art, the illumination device of the present technical solution has the following advantages: firstly, the light that illuminates the surface of the illuminant by the first reflecting surface of the first reflecting portion is more reflected to the light exit portion of the light guiding head cover, Increasing the light utilization efficiency; secondly, using the second reflecting surface at an acute angle with the first reflecting surface, the light emitted by the illuminant and the light reflected by the first reflecting surface to the surface thereof are reflected to the light exit portion of the light guiding head cover, thereby improving Light uses efficiency and changes the direction and extent of light emission.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

30‧‧‧Lighting head cover

31‧‧‧ Cover

32‧‧‧First reflection

33‧‧‧Second reflection

34‧‧‧ Third reflection

35‧‧‧Lighting Department

221‧‧‧ third electrode

222‧‧‧fourth electrode

302‧‧‧ end face

321‧‧‧First reflective surface

331‧‧‧Second reflective surface

341‧‧‧ third reflecting surface

Claims (11)

A lighting device includes a body, an illuminant, and a light guiding head cover. The light guiding head cover is disposed on the body, and the light guiding head cover has a light emitting portion. The improvement is that the body or the light guiding head cover is provided with a first reflecting portion, and the illuminating body is located at Between the first reflecting portion and the light exiting portion, the first reflecting portion has a first reflecting surface opposite to the illuminating body and the light emitting portion, and the light guiding head cover includes a second reflecting portion, and the second reflecting portion is opposite to the illuminating body and emits light The second reflecting portion has a second reflecting surface opposite to the illuminating body, and an angle between the second reflecting surface and the first reflecting surface is an acute angle. The illuminating device of claim 1, wherein the angle between the second reflecting surface and the first reflecting surface is between 25° and 75°. The illuminating device of claim 1, wherein the light guiding head cover further has a third reflecting portion, the third reflecting portion is located between the first reflecting portion and the light emitting portion and opposite to the second reflecting portion, and the third The reflection portion has a third reflection surface that faces the illuminator and the second reflection surface. The illuminating device of claim 3, wherein the third reflecting surface is a curved surface. The illuminating device of claim 3, wherein the third reflecting surface is perpendicular to the first reflecting surface. The illuminating device of claim 3, wherein the angle between the third reflecting surface and the first reflecting surface is between 25° and 75°. The illuminating device of claim 1, wherein the light exiting portion is provided with a first lens for diverging or collecting light. The illuminating device of claim 7, wherein a second lens is disposed between the first lens and the illuminator, and the second lens is used to condense light. The illuminating device of claim 1, wherein the surface of one end of the body is provided with an engaging groove, and the engaging groove comprises a sliding portion extending in a direction parallel to the axial direction thereof and engaging with the extending portion of the sliding portion The light guide head cover has an engaging block that cooperates with the engaging portion, and the engaging block enters into the engaging portion via the sliding portion and is engaged with the engaging portion to fix the light guiding head cover to the body. The illuminating device of claim 1, wherein a surface of one end of the body is provided with a first electrode and a second electrode, and the illuminant is disposed on a side of the body adjacent to the third electrode of the first electrode And a fourth electrode corresponding to the second electrode. A light guide head cover having a light exiting portion, wherein the light exiting portion is located at one end of the light guide head cover, wherein the light guide head cover further has a first reflection portion and a second reflection portion, and the first reflection portion is located opposite to the light exit portion The other end of the first reflecting portion has a first reflecting surface opposite to the light emitting portion, the second reflecting portion is adjacent to the light emitting portion, and the second reflecting portion has a second reflecting surface opposite to the first reflecting surface, and the second reflecting portion The angle between the face and the first reflecting surface is an acute angle.