TWI458917B - Light-transmissive shell capable of intensifying illuminant and wide-angle light transmission - Google Patents

Description

Light source with strong light source and wide-angle light transmission

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a light transmissive housing for a light bulb or a lamp, and more particularly to a light transmissive housing that is glare and can be widely transmitted at a wide angle.

With the advancement of technology, lighting technology has also made great progress. From incandescent bulbs, hot cathode lamps (HCFLs), cold cathode tubes (CCFLs) to light-emitting diodes (LEDs), various light sources are constantly being developed. come out. Recently, the light-emitting diode has obtained the field of one of the lamps due to its advantages of power saving, small size, long life, and difficulty in damage.

However, as countries respond to the green energy policy have set the exit time of tungsten filament bulbs, LED bulbs are gradually included in the replacement market for traditional bulbs. Accordingly, the use of LED bulbs has gradually revealed some blind spots with the arrangement of conventional tungsten bulbs and halogen cup lamps. For example, (1) Under the relationship between light efficiency, life and heat dissipation structure, the heat dissipation body limited by the volume of the traditional tungsten wire wide-angle bulb causes the E26, E27, B22 type tungsten filament bulb type LED bulbs to fail to express the maximum wattage of the tungsten filament bulb. The brightness; (b) MR16 halogen bulbs are also the same. (3) It is impossible to achieve the central glare and wide-angle light transmission exhibited by the PAR system halogen bulb (reflector cup type plus diffused light-transmissive shell). According to the above (1) and (2) items: the height of the lamp head has been assembled. If a high-illuminance light bulb is used, the low-illuminance light bulb must not exhibit the required illumination. According to (3), PAR system halogen The bulb is presented in the main projection of the long-distance kanban and large-area glare, which can highlight the theme and the accompanying picture. At present, the LED light bulb of the PAR system cannot be presented in terms of brightness, illumination angle and blooming area.

1 and 2 respectively show a conventional light bulb 3 using a light-emitting diode, which comprises a plurality of light-emitting diodes (LED, SMD, wafer) 301 constructed by a spacer, a substrate 302, a heat sink 303, and a plurality of heat sinks. The fin 304 and a driver 305 disposed on the driver base 308. The light-emitting diode 301 is disposed on the substrate 302. The substrate 302 is coupled to the heat sink 303. The heat sink fin 304 is disposed on the heat sink 303. The driver 305 is received in the bulb 3 to drive the LED 301. The heat sink 303 is configured to form a plurality of V-shaped grooves 306, and the angle of the V-shaped grooves 306 is determined according to the required light-emitting angle. The light emitting diode 301 is disposed at the bottom of the V-shaped groove 306. The bulb 3 further includes a planar or convex housing 307 disposed on top of the V-groove 306. Accordingly, although the bulb 3 can obtain the required angle light, it cannot obtain a large wide-angle light. Moreover, the bulb 3 cannot achieve the illumination function with both projected light and large area blooming.

FIG. 3 shows another conventional light bulb 4 using a light-emitting diode, which comprises a plurality of light-emitting diodes (LED, SMD, wafer) 401 constructed by a spacer, a substrate 402, a heat sink 403, and a plurality of heat sink fins 404. A driver 405 and a semicircular housing 406 are disposed on the driver base 408. The light emitting diodes (LED, SMD, and wafer) 401 are disposed on the substrate 402, and the semicircular housing 406 is disposed on the corresponding surface of the light emitting diode 401. According to this, it is possible to uniformly project light at a wide angle. However, it is limited to the volume of the LED bulb to be equivalent to the volume of the tungsten bulb, so as to be embedded in the conventional tungsten bulb, and the maximum volume of the heat dissipation structure cannot reach the tungsten bulb under the conditions of light efficiency and longevity. The 100W illumination (Lux) provides the illumination angle required for reading.

Therefore, how to fully display the LED (SMD, wafer) bulbs with the old traditional bulbs Inch size, life, illumination, angle of view and halo, and meet the height of the set point of the light bulb and get the illumination of the old light bulb to meet the user's: old custom lighting, old entertainment, storefront and The illuminance and light-type design of the billboards, such as main light, brightness, and halo, are the topics that the LED industry needs to face. Because if you achieve the above objectives, you can not only fully display the old illuminance and fainting; you don't have to add luminaires and bulbs to the loss and expense caused by illuminance and fainting; such as: lamps, LED bulbs The labor costs of the wiring personnel and the additional operating expenses of the business premises due to the suspension of construction.

In view of the above problems, it is an object of the present invention to provide a light-transmitting envelope of a bulb which is capable of transmitting light with high light and wide angle. In order to achieve the above object, the light-transmitting shell of the present invention comprises a convex mirror body and an extension housing, wherein the convex mirror body has an outer upper end surface and an inner lower end surface disposed opposite to each other, and the outer upper end surface constructs a flange. The inner lower end surface is formed as a flat or concave curved surface, and the extension housing has an outer end surface extending from an outer edge of the upper end surface of the convex mirror body and an inner end surface disposed opposite to the outer end surface, The extension housing may extend outwardly or vertically in a slope, and the inner end surface of the extension housing and the inner lower end surface of the convex mirror body need to form a circular arc edge. The inner lower end surface of the convex mirror body and the inner end surface of the extension housing are provided with a matte structure. According to this, not only the positive projection light of the light source can be projected by the convex mirror body to form strong light, but the partial projection light is transmitted through the extension casing to form wide-angle light. The outer edge of the upper end surface of the convex mirror body and the outer end surface of the extension housing form a circular arc edge, and the inner end surface of the extension housing and the inner end surface of the convex mirror body form a circular arc edge, and the convex mirror can be used. The difference between the strong light projected by the body and the transmitted light passing through the extended casing is improved into uniform light, and, for example, when a plurality of LED light sources are built, a wide area of focus can be formed through the inner curved surface of the inner and lower end faces of the convex mirror body. In the strong light area of the convex mirror body To the effect of double light.

According to this, the center illuminance of the light source can achieve the effect of strong light or even several times of strong light, and can form the halation required for illumination, and because the optical structure is used to achieve strong light, so under the requirement of the required illumination, Not only can the use of LEDs be reduced, but also the use of electricity can be relatively reduced, and the increase in heat can be effectively reduced, and the result of energy saving and carbon reduction can be achieved.

1‧‧‧ bulb

110‧‧‧ lamp holder

111‧‧‧Light source

112‧‧‧Substrate

113‧‧‧ Heat sink

114‧‧‧Heat fins

115‧‧‧ drive

116‧‧‧ lamp holder

12‧‧‧Light-transmitting shell

120‧‧‧ arc

121‧‧‧ convex body

122‧‧‧Extended housing

123‧‧‧Outer upper end face

124‧‧‧ inner lower end

125‧‧‧ inside end

126‧‧‧Outer end face

127‧‧‧ arc

129‧‧‧ arc

130‧‧‧Matte structure

131‧‧‧nano

2‧‧‧Light tube

5‧‧‧ Street Lights

1 to 3 are schematic views of a conventional light bulb.

Figure 4 is an exploded perspective view of a bulb incorporating the light transmissive shell of the present invention.

Figure 5a is a cross-sectional view of the bulb of Figure 4.

Figures 5b and 5c show a bulb of the modified embodiment of Figure 5a.

Figures 6a to 6c show the light transmissive shell of Figures 5a to 5c.

Figures 7a to 7c show the light transmissive shell of the modified embodiment of Figures 6a to 6c.

Figures 8a to 8c show a bulb comprising the light transmissive shell of Figures 7a to 7c.

Figures 9a to 9c show the light transmissive shell of the modified embodiment of Figures 7a to 7c.

Figures 10a to 10c show a bulb comprising the light transmissive shell of Figures 9a to 9c.

Figures 11a to 11c show the light transmissive shell of the modified embodiment of Figures 9a to 9c.

Figures 12a through 12f show a bulb comprising the light transmissive shell of Figures 11a through 11c.

Figures 13a to 13f show the bulb of the modified embodiment of Figures 12a to 12f.

Figure 14 is a tube comprising a light transmissive shell of the present invention.

Figure 15a is a cross-sectional view of the tube of Figure 14.

Figures 15b and 15c show the lamp of the modified embodiment of Figure 15a.

Figure 16 is a street light comprising a light transmissive shell of the present invention.

Figure 17a is a cross-sectional view of the street light of Figure 16.

Figures 17b and 17c show street lamps of the modified embodiment of Figure 17a.

18a to 18c illustrate aspects of a light transmissive housing used in an LED chip package in accordance with a preferred embodiment of the present invention.

19a to 19c illustrate another aspect of a light transmissive housing used in an LED chip package in accordance with a preferred embodiment of the present invention.

20a to 20c illustrate aspects of a light transmissive housing used in an SMD LED package in accordance with a preferred embodiment of the present invention.

As shown in FIG. 4, FIG. 5a, and FIG. 6a, a light-transmitting shell 12 of the present invention is applied to an embodiment of a bulb 1, which includes a light source 111 (for example, a light-emitting diode LED, an SMD or a chip chip), a substrate 112 (selected from a copper or aluminum substrate) for the light source 111, a heat sink 113 coupled to the substrate 112, and a socket 110. The socket 110 is configured as a plurality of heat sink fins coupled to the heat sink 113. And a light-emitting shell 115 electrically connected to the light source 111 and driving the light source 111, a light-emitting shell 12 electrically connected to the light-emitting device 111, and a heat-transfer housing 113. It is used to conduct the heat energy generated by the light source 111 to the outside.

The light transmissive shell 12 includes a convex mirror body 121 and an extension housing 122. The convex mirror body 121 has an outer upper end surface 123 and an inner lower end surface 124 disposed opposite to each other. In this embodiment, the convex mirror The thickness of the body 121 gradually decreases from the center to the periphery. The outer upper end surface 123 defines a flange. The inner lower end surface 124 is formed as a flat surface. The extension housing 122 has an outer end surface 126 extending from the outer end surface 123 of the convex mirror body 121 and a front end surface 126. The inner end surface 125 is disposed on the back surface, and the inner end surface 125 and the inner lower end surface 124 of the convex mirror body 121 form an arc 127. The extension housing 122 extends outwardly at a slope. The light source 111 can transmit the direct light through the convex mirror body 121 to achieve a strong light effect, and the side light rays of the light source 111 are transmitted through the extended casing 122 and the circular arc 127 to achieve strong light and wide-angle transmission. Area dimming function. Furthermore, the outer end surface 126 of the extending case 122 of the light transmissive shell 12 and the outer end surface 123 of the convex mirror body 123 form an arc 129, and the arc 129 can form the side angle light of the light source 111. Uniform light.

Referring to FIG. 5b, 5c, 6b and 6c together, the difference between FIG. 6b and FIG. 6a is that the inner lower end surface 124 of the convex mirror body 121 of FIG. 6b is formed as an arc-shaped concave surface, and the curved concave surface and the extended shell The inner end surface 125 of the body 122 constitutes an arc 127 rim. The difference between FIG. 6c and FIG. 6b is that the inner lower end surface 124 of the convex mirror body 121 of FIG. 6c is formed as a curved concave surface of a larger curvature. In other words, the inner lower end surface 124 of the convex mirror body 121 can be changed according to requirements. Curvature. Figures 7a through 7c show another embodiment of the light transmissive shell 12. Different from FIG. 6a to FIG. 6c, the outer end surface 126 of the extending case 122 of the light-transmitting shell 12 of FIG. 7a to FIG. 7c and the upper end surface 123 of the convex mirror body 121 are not connected with the arc 129.

8a to 8c show the bulb 1 having the light-transmissive shell 12 of Figs. 7a to 7c, wherein the heat sink 113 is disposed inside a socket 110. An arc surface 127 is formed on the inner end surface 124 of the convex mirror body 121, the inner end surface 125 of the extension housing 122, and the inner end surface 125 and the edge of the convex mirror body 121. The matte structure 130 is provided. It is formed by matte treatment (for example, sand blasting), application of matte paper, laser processing or injection molding. The matte structure 130 can eliminate the illuminance step difference outside the projected aperture, thereby forming visible light and increasing illumination. The area and the effect of even light.

9a to 9c show another embodiment of the light transmissive shell 12, which differs from the Figs. 8a to 8c in that the extension housing 122 extends from the convex mirror body 121 in a vertical direction such that the extension housing 122 forms a downward opening with the inner lower end surface 124 of the convex body 12. Please refer to FIG. 10a to FIG. 10c, which are the light bulb 1 constructed according to the light-transmitting shell 12 of FIGS. 9a to 9c, wherein the heat sink 113 is integrally formed with the socket 110.

11a to 11c show another type of light transmissive shell 12 which differs from the Figs. 9a to 9c in that the bottom edge of the extension housing 122 extends a toroidal surface 131 that is in contact with the heat sink 113. Referring to FIG. 12a to FIG. 12f, a light bulb 1 is formed according to the light-transmitting shell 12 of FIG. 11a to FIG. 11c. The bulb 1 includes a light source 111, a substrate 112 for the light source 111, and a substrate. A heat sink 113 connected to the heat sink 113, a plurality of heat sink fins 114 connected to the heat sink 113, a driver 115 electrically connected to the light source 111 and driving the light source 111 to emit light, a lamp head 116 electrically connected to the driver, and a cover The light-transmissive shell 12 is disposed above the light source 111. The base 116 is a terminal type, and the heat sink 113 is disposed inside a socket 110.

Figures 13a to 13f show another type of bulb 1 which differs from Figures 12a to 12f in that the extension housing 122 of the former light transmissive housing 12 extends in a vertical direction and the latter extends outwardly at a slope. .

14, 15a to 15c show a light pipe 2 of the present invention to which a lamp tube 2 is applied. The lamp tube 2 has a light source 111, a substrate 112, a driver 115, a base 116, a light transmissive casing 12, and a socket 110. The lamp holder 110 is coupled to the light transmissive housing 12 to form a tubular body and provides an accommodating space for accommodating the light source 111, the substrate 112, and the driver 115. The lamp cap 116 is disposed at both ends of the socket 110 for connecting an external power source. The light transmissive shell 12 includes a convex mirror body 121 and an extended housing 122. The convex mirror body 121 has an outer upper end surface 123 and an inner lower end surface 124 disposed opposite to each other. The outer upper end surface 123 defines a flange, and the inner lower end surface 124 is constructed as a plane (see FIG. 15a). An outer end surface 126 extending from the upper end surface 123 of the convex mirror body 121 and an inner end surface 125 disposed opposite to the outer end surface 126, the inner end surface 125 and the inner lower end surface 124 of the convex mirror body 121 form an arc 127 links. The light source 111 can transmit the direct light through the convex mirror body 121 to achieve a strong light effect, and the side angle light of the light source 111 is transmitted through the extended casing 122 and the circular arc 127 to achieve strong light and wide-angle light transmission through wide-angle light. Light function. The difference between FIG. 15b and FIG. 15c is that the curvature of the curved concave surface formed by the inner lower end surface 124 of the convex lens body 121 of the latter is larger than that of the former, and the curved concave surface allows the light projected by the light source 111 to form a wide focus, which will be absolutely large. Part of the light is incident on the convex body 121 to form a projected glare.

Figures 16 and 17a to 17e show the light transmissive casing 12 of the present invention applied to a street lamp 5. The light transmissive shell 12 includes a convex mirror body 121 and an extension housing 122. The convex mirror body 121 has an outer upper end surface 123 and an inner lower end surface 124 disposed opposite to each other. The outer upper end surface 123 defines a flange, and the inner lower end surface 124 defines a flange. Constructed as a plane (see FIG. 17a) or a curved concave surface (see FIGS. 17b, 17c), the extension housing 122 has an outer end surface 126 extending from the outer end surface 123 of the convex mirror body 121 and a The inner end surface 125 of the outer end surface 126 is opposite to the inner end surface 125. The inner end surface 125 and the inner lower end surface 124 of the convex mirror body 121 form an arc 127. Furthermore, the extension housing 122 of the light-transmissive shell 12 extends outwardly from a toroidal surface 131 spaced apart from the substrate 112, and the toroidal surface 131 and the extension housing 122 are joined by a circular arc 120. In addition, a circular surface structure 130 is formed on the inner end surface 124 of the convex mirror body 121, the inner end surface 125 of the extension housing 122, and the inner end surface 125 and the arc 127 of the convex body 121. The matte structure is provided. 130 can eliminate the illumination difference outside the projected aperture, which becomes visible light and increases the illumination area, and achieves the effect of uniform light.

As shown in FIGS. 18a to 18c, the light-transmitting shell 12 of the present invention can also be designed for use in a variety of structures, narrow-angle, wide-focus, wide-transmission LED BULB. The LED chip light source 111 is disposed on the surface of the heat sink 113, and is disposed above the heat sink 113 by the light transmissive shell 12, and encapsulates the LED wafer light source 111. As shown in FIGS. 19a to 19c, the light-transmitting shell 12 of the present invention can also mount the LED wafer light source 111 on the substrate 112, and package the LED wafer light source 111 into a wide focusing structure by the light-transmitting shell 12. As shown in Figures 20a to 20c, the light transmissive shell 12 of the present invention can also package the LED wafer source 111 as an SMD LED.

It should be noted that the technical features of all the above components can be mutually applied to the lamps of the different aspects described above, and the details thereof will not be described herein.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be covered by the present invention.

12‧‧‧Light-transmitting shell

121‧‧‧ convex body

122‧‧‧Extended housing

123‧‧‧Outer upper end face

124‧‧‧ inner lower end

125‧‧‧ inside end

126‧‧‧Outer end face

127‧‧‧ arc

130‧‧‧Matte structure

Claims (6)

A light-transmissive shell for a bulb or a lamp, which is disposed above an LED light source, the light-transmissive shell comprising: a convex mirror body having opposite upper and lower end faces disposed opposite to each other The outer upper end surface defines a flange, the inner lower end surface is configured as a plane or a concave curved surface, the convex mirror body can transmit the direct projection light of the light source to form strong light; and an extension housing includes a An outer end surface extending from an outer edge of the upper end surface of the convex mirror body and an inner end surface extending from an outer edge of the inner lower surface of the convex mirror body, wherein an inner end surface of the extension housing and the inner side of the convex mirror body The lower end surface constitutes a circular arc edge, and the extension housing and the arc can transmit the side angle light of the light source to form a wide-angle light transmission. The light-transmissive shell according to the first aspect of the invention, wherein the outer end surface of the extension housing and the outer edge of the outer end surface of the convex mirror body are configured with a concave arc, and the thickness of the convex mirror body is centered. Decrease to the periphery. The light-transmissive shell according to claim 2, wherein the inner lower end surface of the convex mirror body and the inner end surface of the extension housing and the arc of the inner end surface and the inner lower end surface of the convex mirror body are both It has a matte structure. The light-transmissive shell according to claim 3, wherein the matte structure is formed by sand blasting, lamination, laser processing or injection molding. The light-transmissive shell of claim 3, wherein the extension housing extends outwardly at a slope. The light transmissive shell of claim 3, wherein the extension housing extends in a vertical direction.