TW201502436A - Lamp device with color-changeable filter - Google Patents

Abstract

A lamp device includes a supporting frame, a LED array source, a light filter, two end caps and two couples of electrodes. The LED array source is disposed on the supporting frame. The light filter is arc shape and the light filter combines with the supporting frame to be a tubular structure and the arc surface of the light filter is a light emitting surface of the LED array source. The light filter is used to absorb a ray of specific wavelength in the emitting light of the LED array source. The two end caps are disposed on two ends of the tubular structure respectively. The couples of electrodes are disposed on the two ends of the tubular structure and the two end caps respectively for electrically connecting to the LED array source.

Description

Replaceable color luminaire device

The present invention relates to a light-emitting diode (LED) luminaire, and more particularly to a luminaire device that can absorb a specific wavelength.

In general, the illumination provided by the LED source can be applied to a wide variety of luminaire structures, mostly flat luminaires or tubular luminaires, and the luminaires in the luminaires are used to illuminate the side LEDs. The light from the light source is refracted upward to produce a planar beam. The tubular lamp directly emits light from the light emitting surface of the light source of the light emitting diode, and the lamp cover of the tubular lamp is curved to replace the traditional fluorescent tube.

However, the existing special wavelength light tube has a large driving power and a short life, so the replacement frequency is high and the cost is high. In addition, the special wavelength fluorescent tube is covered with a special plastic film on the surface of the lamp tube, and the light in the ultraviolet band is generated during use, which causes the special plastic film to be aged by ultraviolet light for a long time. Therefore, in the process, the aged plastic film will not be able to filter the wavelength of the exposure reaction, causing defects in the photosensitive material and affecting the yield of the process.

The invention relates to a luminaire device for absorbing light of a specific wavelength and replacing the traditional fluorescent tube to avoid the overflow of light of a specific wavelength and affecting the yield of the process.

According to an aspect of the invention, a lamp device is provided, comprising a support frame, a light emitting diode array light source, a filter, a two-end cover and two pairs of electrodes. The light emitting diode array light source is disposed on the support frame. The filter has an arc shape, and the filter and the support frame are combined into a tubular structure, and the arc surface thereof is a light-emitting surface of the light-emitting diode array light source. The filter is for absorbing light of a specific wavelength in the emitted light of the light emitting diode array light source. The two end caps are respectively disposed at two ends of the tubular structure. The two pairs of electrodes are respectively disposed on the two ends of the tubular structure and the two end covers, and are electrically connected to the light source of the LED array.

According to another aspect of the present invention, a lamp device includes a support frame, a first light emitting diode array light source, a second light emitting diode array light source, a reflective sheet, a light guide plate, and two filters. . The support frame is flat. The support frame has an upper surface and a lower surface, and the four sides of the support frame connect the upper surface and the lower surface. The first side and the third side of the support frame are parallel to each other, and the second side and the fourth side are parallel to each other, and the support frame extends upward from the first side and the third side in the direction of the vertical upper surface, respectively forming one of the inner walls The first lamp cover and a second lamp cover. The first light emitting diode array light source is disposed on an inner wall of the first lamp cover. The second light emitting diode array light source is disposed on an inner wall of the second lamp cover. The reflective sheet is disposed on the upper surface of the support frame. The light guide plate is disposed on the reflective sheet, and the light incident surfaces on both sides of the light guide plate respectively face the first and second light emitting diode array light sources to respectively adopt the first and second light emitting diode array light sources The direction of the light exit surface of the light guide. The two filters are respectively disposed between the first and second LED array light sources and the light incident surfaces on both sides of the light guide plate for absorbing one of the emitted light of the first and second LED array light sources Light at a specific wavelength.

According to another aspect of the present invention, a lamp device includes a support frame, a first light emitting diode array light source, a second light emitting diode array light source, a reflective sheet, a light guide plate, and a filter. . The support frame is flat. The support frame has an upper surface and a lower surface, and the four sides of the support frame connect the upper surface and the lower surface. The first side and the third side of the support frame are parallel to each other, and the second side and the fourth side are parallel to each other, and the support frame extends upward from the first side and the third side in the direction of the vertical upper surface, respectively forming one of the inner walls The first lamp cover and a second lamp cover. The first light emitting diode array light source is disposed on an inner wall of the first lamp cover. The second light emitting diode array light source is disposed on an inner wall of the second lamp cover. The reflective sheet is disposed on the upper surface of the support frame. The light guide plate is disposed on the reflective sheet, and the light incident surfaces on both sides of the light guide plate respectively face the first and second light emitting diode array light sources to guide the light guides of the first and second light emitting diode array light sources to the light guide plate The direction of the light surface. The filter is disposed on the light emitting surface of the light guide plate for absorbing light of a specific wavelength of the light emitted by the first and second light emitting diode array light sources.

In order to better understand the above and other aspects of the present invention, the preferred embodiments are described below, and in conjunction with the drawings, the detailed description is as follows:

100, 200a, 200b‧‧‧ lamps

108‧‧‧Tubular structure

110, 210‧‧‧ support frame

120, 220a, 220b‧‧‧Lighting diode array light source

122, 222‧‧‧ substrate

124, 224‧‧ ‧Lighting diode

125‧‧‧Anode terminal

126‧‧‧ cathode terminal

128, 228, 230‧‧‧ Filters

128a‧‧‧ surface

130‧‧‧End cover

140‧‧‧electrode

141‧‧‧ positive electrode

142‧‧‧negative electrode

210a‧‧‧ upper surface

210b‧‧‧ lower surface

211‧‧‧First lampshade

213‧‧‧second lampshade

225‧‧‧reflector

226‧‧‧Light guide plate

226a‧‧‧Glossy

226b‧‧‧Glossy

227‧‧‧Optical diaphragm

L‧‧‧Light

L1, L2‧‧‧ long side

S1, S2‧‧‧ short side

T1, T2‧‧‧ long strip grooves

W1‧‧‧ first side

W2‧‧‧ second side

W3‧‧‧ third side

W4‧‧‧ fourth side

FIG. 1 is a schematic view of a luminaire device according to a first embodiment.

2A is a schematic view of a luminaire device in accordance with a second embodiment.

2B is a cross-sectional view showing the luminaire device according to the second embodiment.

FIG. 3A is a schematic view showing a lamp device according to a third embodiment.

FIG. 3B is a cross-sectional view showing the lamp device according to the third embodiment.

FIG. 4 is a diagram showing a luminous flux distribution after the filter absorbs a specific wavelength according to an embodiment.

First embodiment: tubular lamp

Please refer to FIG. 1 , which is a schematic diagram of a luminaire device according to a first embodiment. The luminaire device 100 includes a support frame 110, a light-emitting diode array light source 120, a filter 128, a two-end cover 130, and two pairs of electrodes 140. The LED array light source 120 is disposed on the support frame 110. The filter 128 has an arc shape, and the filter 128 is combined with the support frame 110 to form a tubular structure 108, and the arc surface thereof is the light exit surface of the light emitting diode array light source 120. The filter 128 is configured to absorb light of a specific wavelength of the emitted light of the LED array source 120. The two end caps 130 are disposed at opposite ends of the tubular structure 108, respectively. The two pairs of electrodes 140 are respectively disposed on the two ends of the tubular structure 108 and the two end covers 130, and are electrically connected to the LED array light source 120.

In an embodiment, the filter 128 has two long sides L1, L2 and two short sides S1, S2. The long sides of the filter 128 are fixed on both sides of the support frame 110, and the filter 128 is curled inward along the two long sides L1, L2, so that the two short sides S1, S2 of the filter 128 form a C shape. Curve 128a. Therefore, the long side of the filter 128 L1 and L2 extend in the horizontal direction of the curved surface 128a, and the short sides S1 and S2 of the filter 128 extend in the tangential direction of the curved surface 128a.

In one embodiment, the filter 128 contains a light absorbing agent or a photosensitizer to absorb light of a particular wavelength. The light absorbing agent can be an organic compound that can be coated on the filter 128 or directly doped in the filter 128 when the filter 128 is fabricated. Since the filter 128 is directly formed into a circular arc shape and absorbs light of a specific wavelength, the surface of the lamp device 100 does not need to be covered with a plastic film.

In addition, when the filter 128 is fabricated, the filter 128 can form two elongated trenches T1 and T2 along opposite sides of the long side, so that the filter 128 can be fixed via the two trenches T1 and T2. On the support frame 110, they are combined into a tubular structure 108.

Referring to FIG. 1 , in an embodiment, the support frame 110 is made of, for example, a heat dissipating metal, and has sufficient strength and thickness. The support frame 110 is elongated to fix the LED array light source 120 in the horizontal direction (long sides L1, L2) in the tubular structure 108 and absorb the heat generated by the LEDs 124 to avoid The heat is concentrated in the light-emitting diode 124 to affect its luminous efficiency.

The LED array light source 120 is disposed on the support frame 110. The LED array light source 120 includes a substrate 122 and a plurality of LEDs 124. The substrate 122 is, for example, an aluminum substrate which may be composed of a plurality of vertically connected substrates. The substrate 122 is used to fix the LEDs 124 on the support frame 110. The short sides of the substrate 122 have an anode terminal 125 and a cathode terminal 126, respectively, for connecting the two electrodes 140 on the same side. In an embodiment, the substrate 122 of the LED array light source 120 can be fixed on the support frame 110 by glue. Light-emitting diodes 124 are arranged in an array on substrate 122 to form an array of point sources. In addition, a homogenizer or a diffusion sheet may be disposed in the tubular structure 108 to enable illumination. The emitted light of the diode array light source 120 is uniformly dispersed.

Further, the end caps 130 are disposed at both ends of the tubular structure 108 such that both ends of the tubular structure 108 are closed. In one embodiment, an actuator is disposed in the end cap 130 for supplying direct current and electrically illuminating the light emitting diode 124 in the tubular structure 108. In another embodiment, the actuator may also be disposed below the support frame 110.

In addition, each pair of electrodes 140 includes a positive electrode 141 and a negative electrode 142. Each pair of electrodes 140 is disposed on one end of the tubular structure 108 and the end cover 130 for connecting an external power source and electrically connected to the substrate 122 of the LED array light source 120 to provide the required power. One end of each pair of electrodes 140 protrudes beyond the end cover 130 in the horizontal direction (long sides L1, L2) and can be inserted into the socket of the fluorescent tube. Therefore, the luminaire structure 100 of the embodiment can replace the traditional fluorescent tube, and the life of the illuminating diode 124 is much longer than that of the conventional fluorescent tube, and it does not need to be replaced frequently, and the luminous efficiency is higher, so that the energy saving effect can be achieved.

Second embodiment: flat lamp

Please refer to FIG. 2A and FIG. 2B , wherein FIG. 2A is a schematic diagram of a luminaire device according to a second embodiment, and FIG. 2B is a cross-sectional view of the luminaire device according to the second embodiment. The luminaire device 200a includes a support frame 210, a first light-emitting diode array light source 220a, a second light-emitting diode array light source 220b, a reflective sheet 225, a light guide plate 226, and two filter 228. The support frame 210 has a flat shape. The support frame 210 has an upper surface 210a and a lower surface 210b, and the four sides of the support frame 210 connect the upper surface 210a and the lower surface 210b. The first side W1 and the third side W3 of the support frame 210 are parallel to each other, and the second side W2 and the fourth side W4 are parallel to each other. The support frame 210 has a vertical upper surface from the first side W1 and the third side W3 The direction of 210a extends upward to form a first lamp cover 211 and a second lamp cover 213 having an inner wall. The first LED array light source 220a is disposed on an inner wall of the first lamp cover 211. The second LED array light source 220b is disposed on the inner wall of the second lamp cover 213. The reflection sheet 225 is disposed on the upper surface 210a of the support frame 210. The light guide plate 226 is disposed on the reflective sheet 225. The light incident surfaces 226a on both sides of the light guide plate 226 face the first and second light emitting diode array light sources 220a and 220b, respectively, to guide the light guides 226 of the first and second light emitting diode array light sources 220a and 220b. The direction of the light exit surface 226b. The second filter 228 is disposed between the first and second LED arrays 220a and 220b and the light incident surface 226a on both sides of the light guide plate 226 for absorbing the first and second LED arrays. The light of the light source 220a, 220b emits light of a specific wavelength.

In one embodiment, filter 228 contains a light absorbing agent or photosensitizer to absorb light of a particular wavelength. The light absorbing agent can be an organic compound that can be coated on the filter 228 or directly doped in the filter 228 when the filter 228 is fabricated. The emitted light of the first and second LED array light sources 220a and 220b may be first filtered through the filter 228 and then incident on the light guide plate 226. The light-emitting surface 226b of the light guide plate 226 faces upward, and a reflection sheet 225 is disposed on the bottom surface of the light guide plate 226 for reflecting the light incident on the side surface in the direction of the light-emitting surface 226b. In addition, an optical film 227 may be disposed on the light emitting surface 226b of the light guide plate 226. The optical film 227 is, for example, a diffusion sheet, a cymbal sheet or a diaphragm composed of the above, so that the emitted light energy of the first and second illuminating diode array light sources 220a, 220b is uniformly dispersed.

In one embodiment, the support frame 210 is constructed of, for example, a heat dissipating metal having sufficient strength and thickness. The support frame 210 is flat and formed on both sides The first and second LED arrays 211 and 220b are disposed on the two sides of the light guide plate 226 along the horizontal direction, and are fixed to the first cover 211. And the second lamp cover 213 absorbs the heat generated by the light-emitting diode 224 to prevent heat from being concentrated in the light-emitting diode 224 to affect its luminous efficiency.

Referring to FIG. 2B , the first and second LED arrays 220a and 220b respectively include a substrate 222 and a plurality of LEDs 224 . The substrate 222 is configured to fix the LEDs 224 on the inner walls of the first lamp cover 211 and the second lamp cover 213. In one embodiment, the substrate 222 of the first and second LED arrays 220a, 220b can be fixed on the inner walls of the first lamp cover 211 and the second lamp cover 213 by glue. The substrate 222 can be supplied with direct current by a starter and electrically illuminate the light emitting diode 224. Since the life of the light-emitting diode 224 is much longer than that of the conventional fluorescent lamp, it does not need to be replaced frequently, and the luminous efficiency is higher, so that the energy-saving effect can be achieved.

Third Embodiment: Flat Lamp

Please refer to FIG. 3A and FIG. 3B , wherein FIG. 3A is a schematic diagram of a luminaire device according to a third embodiment, and FIG. 3B is a cross-sectional view of the luminaire device according to the third embodiment. The luminaire device 200b of the present embodiment is different from the second embodiment in that the filter 230 is disposed on the light-emitting surface 226b of the light guide plate 226 for absorbing the first and second LED array light sources 220a and 220b. A light of a specific wavelength in the emitted light.

In one embodiment, the filter 230 contains a light absorbing agent or a photosensitizer to absorb light of a particular wavelength. The light absorbing agent may be an organic compound that may be coated on the filter 230 or formed directly in the filter 230 when the filter 230 is fabricated. The filter 230 has a flat shape and can be fixed to the first lamp cover 211 and the second lamp cover. Between 213, and maintaining a certain distance from the upper surface 210a of the support frame 210, the light guide plate 226 is correspondingly located between the filter 230 and the support frame 210.

Further, a reflection sheet 225 is disposed on the bottom surface of the light guide plate 226. The emitted light of the first and second LED array light sources 220a and 220b may be incident on the light guide plate 226 first, and then the light incident on the side surface is reflected by the reflection sheet 225 to be emitted toward the light exit surface 226b, and then filtered. The light sheet 230 filters light of a specific wavelength.

Please refer to FIG. 4, which illustrates a light flux distribution diagram after the filter absorbs a specific wavelength according to an embodiment. As can be seen from Fig. 4, the filter can absorb wavelengths in the wavelength range of 500 nm or less, covering the near-ultraviolet light band (280 nm to 400 nm) and part of the visible light band (400 nm to 500 nm). Therefore, the filter of the embodiment can absorb light of a specific wavelength to filter the wavelength of the exposure reaction of the photosensitive material, thereby improving the yield of the lithography process. In addition, the filter can change the light absorbing characteristics through different formulas of light absorbing agents or photosensitizers to absorb light of a specific wavelength, and is not limited to ultraviolet light.

The luminaire device disclosed in the above embodiments of the present invention has at least the following features:

(1) The use of filters to absorb light of a specific wavelength does not require the use of conventional fluorescent lamps of a specific wavelength to avoid the overflow of light of a specific wavelength and affect the yield of the process.

(2) In an embodiment, the filter may form a tubular structure with the arc-shaped support frame to replace the conventional fluorescent tube.

(3) In an embodiment, the filter and the light emitting diode array light source may be disposed on the light incident surface of the side of the light guide plate such that the emitted light energy uniformly diverge toward the light emitting surface of the light guide plate.

(4) In an embodiment, the filter can form a flat lamp with the flat support frame, and absorb light of a specific wavelength directly with the filter to save assembly time and cost.

In conclusion, the present invention has been disclosed in the above preferred embodiments, and is not intended to limit the present invention. A person skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

100‧‧‧Lighting diode lamps

108‧‧‧Tubular structure

110‧‧‧Support frame

120‧‧‧Lighting diode array light source

122‧‧‧Substrate

124‧‧‧Lighting diode

125‧‧‧Anode terminal

126‧‧‧ cathode terminal

128‧‧‧Filter

128a‧‧‧ surface

130‧‧‧End cover

140‧‧‧electrode

141‧‧‧ positive electrode

142‧‧‧negative electrode

L1, L2‧‧‧ long side

S1, S2‧‧‧ short side

T1, T2‧‧‧ long strip grooves

Claims (12)

A luminaire device comprising: a support frame having a flat shape, the support frame being composed of a heat dissipating metal and having an upper surface and a lower surface, and four sides of the support frame connecting the upper surface and the lower surface, wherein the support device The first side and the third side of the support frame are parallel to each other, and the second side and the fourth side are parallel to each other. The support frame extends upward from the first side and the third side in a direction perpendicular to the upper surface, respectively formed to have a first light cover and a second light cover; a first light emitting diode array light source disposed on an inner wall of the first light cover; a second light emitting diode array light source disposed on the second light cover a reflective sheet disposed on the upper surface of the support frame; a light guide plate disposed on the reflective sheet, and the light incident surfaces on both sides of the light guide plate respectively facing the first and second light emitting portions a diode array light source for directing the emitted light of the first and second light emitting diode array light sources to a light emitting surface of the light guide plate; and two filters disposed at the first and the second Light-emitting diode array light source and the guide Between the plates of both sides of the surface, for absorbing and filtering out the first and the array of light sources of the second light emitting diode emitting light in a specific wavelength. The illuminating device of claim 1, wherein the first and second illuminating diode arrays respectively comprise a substrate and a plurality of illuminating diodes for fixing the illuminating diodes And on the inner wall of the first lampshade and the second lampshade. The luminaire device of claim 2, wherein the illuminating diodes are arranged in an array on the substrate. The luminaire device of claim 1, wherein the light of the specific wavelength is ultraviolet light. The luminaire device of claim 1, further comprising an optical film disposed on the light guide plate. The luminaire device of claim 5, wherein the optical film is a diffusion sheet, a gusset or a combination thereof. A luminaire device comprising: a support frame having a flat shape, the support frame being composed of a heat dissipating metal and having an upper surface and a lower surface, and four sides of the support frame connecting the upper surface and the lower surface, wherein the support device The first side and the third side of the support frame are parallel to each other, and the second side and the fourth side are parallel to each other. The support frame extends upward from the first side and the third side in a direction perpendicular to the upper surface, respectively formed to have a first light cover and a second light cover; a first light emitting diode array light source disposed on an inner wall of the first light cover; a second light emitting diode array light source disposed on the second light cover a reflective sheet disposed on the upper surface of the support frame; a light guide plate disposed on the reflective sheet, and the light incident surfaces on both sides of the light guide plate respectively facing the first and second light emitting portions a diode array light source for directing the emitted light of the first and second light emitting diode array light sources to a light emitting surface of the light guide plate; A filter is disposed on the light emitting surface of the light guide plate for absorbing and filtering out light of a specific wavelength of the emitted light of the first and second light emitting diode array light sources. The luminaire device of claim 7, wherein the first and second illuminating diode array light sources respectively comprise a substrate and a plurality of light emitting diodes for fixing the light emitting diodes On the support frame. The luminaire device of claim 8, wherein the illuminating diodes are arranged in an array on the substrate. The luminaire device of claim 7, wherein the light of the specific wavelength is ultraviolet light. The luminaire device of claim 7, further comprising an optical film disposed on the light guide plate. The luminaire device of claim 11, wherein the optical film is a diffusion sheet, a slap, or a combination thereof.