TWI814535B - Lamp - Google Patents

Abstract

A lamp that is fixed on a wall includes a housing, a first reflection sheet and a light source. The housing has a bottom, an opening and an inner wall. The inner wall connects the bottom and the opening to define a cavity, and the opening faces the wall. The first reflection sheet has a first reflection surface and disposed on the inner wall. The light source is disposed in the cavity to provide at least one light beam, which is reflected by the first reflective surface and then emitted from the opening to the wall.

Description

lamps

The present invention relates to a lamp, and in particular to a lamp arranged on the surface of an object.

Lamps installed on the surface of objects use light to project on the surface of objects that need to show changes in light and shadow (such as ceilings, walls, stage backgrounds, exhibits), which can produce various light and shadow changes with different light and shade. Take a night light installed on the wall as an example. Since part of the light emitted will be projected onto the wall first and then emitted outward, it can provide low-brightness dim light to avoid irritating the eyes and disturbing the user's sleep. At the same time, It can also provide temporary small-scale night lighting.

However, most of the current night light bulbs are installed in the lampshade, so that the bulb emits light directly from the center of the lampshade toward the outside (the wall). As a result, the illumination brightness of the light is uneven and the light is easily dazzling, which cannot fully meet the needs of the consumer market. Therefore, how to improve the above problems and deficiencies is the research and development direction that related industries and manufacturers are striving to research and develop.

The embodiment of this specification discloses a lamp, which is installed on a wall and includes: a housing, a first reflective sheet and a light source. The shell has a bottom, an opening The opening and an inner wall connect the bottom and the opening to define a cavity, with the opening facing the wall. The first reflective sheet is located on the inner wall and has a first reflective surface. The light source is located in the cavity and is used to provide at least one light beam, which is reflected by the first reflective surface and then emitted from the opening toward the wall.

According to the above embodiments, this specification provides a lamp installed on a wall, which includes a housing with an opening facing the wall, at least one light source located in the housing, and at least one reflective sheet located on the inner wall of the housing. After the light beam provided by the light source is reflected at least once by the reflective sheet, it is then emitted from the opening to the wall, thereby increasing the probability of the light beam being mixed inside the housing and improving the uniformity of the emitted light.

11:Wall

100:Lamps

101: Shell

101a: Bottom

101b:Inner wall

101c: Combined sleeve

101d: Central axis of the opening

101s:Cavity

101o: opening of cavity

102: Fixed seat

102a: Engagement part

102b: Fixed part

103: Translucent lampshade

103b: Upper cover sleeve

103c: Translucent cover

104: First reflective sheet

104a: First reflective surface

105:Light source

105a:Light-emitting unit

105b:Light panel

105o: Center opening of the light panel

106: Decorative parts

107:Second reflective sheet

107a: Second reflective surface

200:Lamps

204: First reflective sheet

204a: First reflective surface

204a1:Part 1

204a2:Part 2

300:Lamps

304: First reflective sheet

304a: First reflective surface

304a1:Part 1

304a2:Part 2

400:Lamps

404: First reflective sheet

404a: First reflective surface

404a1:Part 1

404a2:Part 2

500:Lamps

504: First reflective sheet

504a: First reflective surface

600:Lamps

604: First reflective sheet

604a: First reflective surface

604a1:Part 1

604a2:Part 2

R31-R35: step reflection area

R51-R54: Isolate reflective area

R61-R63: Arc reflection area

H: Combined with the central axis of the sleeve

L1: Beam

L2: Beam

L3: Beam

L4: Beam

θ: obtuse angle

α1: acute angle

α2: acute angle

T: normal

K: distance

In order to have a better understanding of the above and other aspects of this specification, embodiments are specifically cited below and described in detail with the accompanying drawings: Figure 1A is a cross-sectional view of a partial structure of a lamp according to an embodiment of this specification; Figure 1B is an enlarged view of a partial cross-sectional structure of the lamp in Figure 1A; Figure 2 is an enlarged view of a partial cross-sectional structure of the lamp according to another embodiment of this specification; Figure 3 is an enlarged view of a partial cross-sectional structure of the lamp according to another embodiment of this specification. A partial enlarged view of the cross-sectional structure of the lamp shown in the embodiment; Figure 4 is a partial enlarged view of the cross-sectional structure of the lamp according to yet another embodiment of this specification; Figure 5 is a partial enlarged view of the cross-sectional structure of the lamp according to yet another embodiment of the present specification; and Figure 6 is an enlarged view of the partial cross-sectional structure of the lamp according to yet another embodiment of the present specification.

This instruction manual provides a lamp that can improve the uniformity of emitted light. In order to make the above-mentioned embodiments and other objects, features and advantages of this specification more clearly understandable, a plurality of preferred embodiments are enumerated below and described in detail with reference to the accompanying drawings.

However, it must be noted that these specific implementation examples and methods are not intended to limit the present invention. The invention may still be implemented using other features, components, methods and parameters. The preferred embodiments are proposed only to illustrate the technical features of the present invention and are not intended to limit the patentable scope of the present invention. Those with ordinary knowledge in this technical field will be able to make equal modifications and changes based on the description of the following description without departing from the spirit and scope of the present invention. In different embodiments and drawings, the same components will be represented by the same component symbols.

Please refer to Figures 1A and 1B. Figure 1A is a partial structural cross-sectional view of the lamp 100 according to an embodiment of this specification; Figure 1B is an enlarged view of a partial cross-sectional structure of the lamp 100 in Figure 1A. The lamp 100 includes: a housing 101, a fixing base 102, a transparent lampshade 103, a first reflective sheet 104 and a light source 105. As shown in Figure 1A, the housing 101 is connected to the fixing base 102, and is fixed on the wall 11 through the fixing base 102; 101 has a cavity 101s. The first reflection sheet 104 and the light source 105 are located in the cavity 101s; the transparent lampshade 103 is located on the housing 101. In addition, in some embodiments of this specification, the lamp 100 may also include at least one decorative piece 106 (such as a decorative plate or decorative shell), which is fixed on the outer side of the bottom 101a and the inner wall 101b of the housing 101.

In some embodiments of this specification, the housing 101 may be made of an opaque material (eg, metal) or a semi-transparent material (eg, plastic material). The housing 101 includes a bottom 101a and at least one inner wall 101b connected to the bottom 101a and a coupling sleeve 101c connected to the bottom 101a to define a cavity 101s. The central axis H of the coupling sleeve 101c may be parallel to the central axis 101d of the opening 101o of the cavity 101s.

In this embodiment, the combination sleeve 101c may be a sleeve-like structure composed of an annular vertical wall (or multiple vertical walls) extending upward from the bottom 101a, and may be used to carry the light source 105 and the light-transmitting cover 103, and Combine the housing 101 and the fixing base 102 . Among them, the annular vertical wall of the combined sleeve 101c and the inner wall 101b of the housing 101 can jointly define an annular cavity 101s. The central axis H of the coupling sleeve 101c is coaxial with the central axis 101d of the opening 101o of the cavity 101s.

The fixed base 102 includes an engaging part 102a and a fixing part 102b. Among them, the engaging portion 102a is provided in the coupling sleeve 101c (located on the opposite side of the annular vertical wall), and the fixing portion 102b is located outside the coupling sleeve 101c, and the engaging portion 102a is along the central axis H of the coupling sleeve 101c. One end (not shown) extending outward to the outside of the coupling sleeve 101c is coupled, so that the coupling sleeve 101c is engaged between the engaging portion 102a and the fixing portion 102b. The other end of the fixed part 102b that is not connected to the engaging part 102a is along the central axis H of the coupling sleeve 101c. Extends outward to the outside of the opening 101o of the cavity 101s, and is fixed on the wall 11, so that the opening 101o of the cavity 101s faces the wall 11.

The light source 105 is fixed in the cavity 101s of the housing 101. For example, in some embodiments of this specification, the light source 105 may include a plurality of light-emitting units 105a, such as a plurality of light-emitting diode dies (or lamp beads), fixed on the annular vertical wall of the coupling sleeve 101c. The light source 105 may include an annular lamp panel (lamp holder) 105b. The central opening 105o of the lamp panel (lamp holder) 105b is sleeved on the sleeve-like structure of the combined sleeve 101c, and the lamp panel (lamp holder) 105b is The outer surface in the circumferential direction forms an acute angle α1 or a right angle with the bottom 101 a of the housing 101 . A plurality of light-emitting units 105a are provided on the outer surface of the annular light panel 105b along the circumferential direction.

For example, in this embodiment, a ring-shaped light bar composed of a plurality of light-emitting units 105a is arranged in an annular shape on the outer surface of the ring-shaped light panel 105b. When the light-emitting units 105a emit light, the parallel light beams projected by each light-emitting unit 105a can be mixed to produce a ring-shaped uniform and soft non-directional light source to avoid the generation of dazzling light that disturbs the user's sleep.

The transparent lampshade 103 is also fixed in the cavity 101s of the housing 101 through the coupling sleeve 101c. In this embodiment, the light-transmitting lampshade 103 includes a bushing 103a, an upper cover sleeve 103b and a light-transmitting cover plate 103c. The bushing 103a is sleeved and fixed on the sleeve-like structure of the coupling sleeve 101c; the upper cover sleeve 103b is sleeved and fixed on the bushing 103a, and the light-transmitting cover 103c extends from the lower edge of the upper cover sleeve 103b to the shell 101 The bottom 101a extends to form an annular light-transmitting shell covering the annular light bar of the light source 105.

In this embodiment, since the lower edge of the light-transmitting cover 103c is lower than the lowest point of the annular light bar, the light-transmitting cover 103c can be placed between the inner wall 101b of the housing 101 and each light-emitting unit 105a, thereby This achieves the purpose of preventing the user from seeing the light-emitting unit 105a (lamp bead) inward from the opening 101o of the cavity 101s of the housing 101.

In some embodiments of this specification, the light-transmitting lampshade 103 may be a shell structure made of a light-transmitting or semi-transparent plastic material (such as resin). The light transmittance of the bushing 103a and the upper cover sleeve 103b may be less than the light transmittance of the light-transmissive cover plate 103c. In addition, a diffusing agent can be added (or coated) on the transparent cover 103c, or an uneven microstructure can be formed on its surface to increase the light guide and/or diffusion and other optical effects of the transparent cover 103c, further improving the The illumination and uniformity of the light projected by the lamp 100 toward the wall 11.

For example, the diffusing agent component used in the light-transmitting cover 103c may include: organic silicon light diffusing agent and/or inorganic light diffusing agent. Wherein, the organic silicon light diffusing agent can be, for example (but not limited to), at least one of acrylic type, styrene type, acrylic resin type, etc. The inorganic light diffusion may be, for example (but not limited to), at least one of barium sulfate, calcium carbonate, silicon dioxide, etc.

It is worth noting that in order to prevent the material of the transparent lampshade 103 from deteriorating due to long-term exposure to the light source 105 or high temperature. In some embodiments of this specification, the distance K between the light-transmitting cover 103c and each light-emitting unit 105a needs to be maintained greater than 9 (millimeters) mm. In addition, the content of the diffusing agent in the light-transmitting cover 103c can be controlled between 0.1% and 5% of the overall weight of the light-transmitting lampshade 103.

The first reflective sheet 104 is fixed on the inner wall 101b of the housing 101 and has a first reflective surface 104a corresponding to (for example, facing) the light-emitting unit of the light source 105 105a. In some embodiments of this specification, the first reflective sheet 104 may be a plate, sheet or block made of a metal plate or other material that can reflect light. For example, in this embodiment, the first reflective sheet 104 may be a metal film conformally covering the inner wall 101b of the casing 101. The first reflective surface 104a of the first reflective sheet 104 is in contact with the casing. The bottom 101a of the body 101 forms an obtuse angle θ, and extends to cover the bottom 101a of the housing 101.

The light beam provided by the light source 105 can reach the first reflective surface 104a after passing through the translucent lampshade 103. After being reflected at least once by the first reflective surface 104a, it is emitted toward the wall 11 through the opening 101o of the housing 101. For example, in this embodiment, a part of the light beam L1 provided by the light source 105 can be directly projected to the wall 11 after passing through the light-transmitting cover 103c. Another part of the light beam L2 provided by the light source 105 passes through the light-transmitting cover 103c, is reflected once by the first reflective sheet 104, and then is projected to the wall surface 11. Another part of the light beam L3 provided by the light source 105 can, after passing through the light-transmitting cover 103c, be reflected twice by the first reflective sheet 104 and then be projected to the wall surface 11. Jiyou mixes the light beams L1, L2 and L3 projected onto the wall 11, allowing the user to see the wall 11 (such as the ceiling) as a soft and uniform non-directional light source without seeing unnecessary shadows.

In some embodiments of this specification, the lamp 100 may also optionally include a second reflective sheet 107 located outside the opening 101o of the housing 101 and having a first corresponding two reflective surfaces located inside the housing 101. 107a. In this embodiment, the second reflective sheet 107 may be a metal plate, which may be disposed on the fixed base 102 (and /or the transparent lampshade 103), so that the second reflective surface 107a faces the opening 101o of the housing 101.

In this embodiment, a part of the light beam L4 provided by the light source 105 is reflected at least once (for example, twice) by the first reflective surface 104a to form reflected light that reaches the second reflective sheet 107 and then passes through the second reflective surface 107a. The reflection returns to the cavity 101s of the housing 101 and is further mixed with other light beams, which further helps to generate a uniform and soft non-directional light source.

Please refer to Figure 2 , which is a partially enlarged view of the cross-sectional structure of the lamp 200 according to another embodiment of this specification. In this embodiment, the structure of the lamp 200 is substantially similar to the lamp 100 shown in FIGS. 1A and 1B . The difference is that the first reflective sheet 204 of the lamp 200 is not co-located with the inner wall 101 b of the housing 101 . shape.

In this embodiment, the first reflective surface 204a of the first reflective sheet 204 of the lamp 200 includes a first part 204a1 and a second part 204a2. The first part 204a1 is an inclined plane (flat surface) extending from the bottom 101a of the housing 101 to the opening 101o of the housing 101, and a normal T perpendicular to the first part 204a1 forms an acute angle α2 with the central axis 101d of the opening 101o. The second part 204a2 of the first reflective surface 204a is connected to the first part 204a1, and extends and covers the bottom 101a of the housing 101.

Please refer to Figure 3. Figure 3 is a partially enlarged view of the cross-sectional structure of the lamp 300 according to another embodiment of this specification. In this embodiment, the structure of the lamp 300 is substantially similar to the lamp 200 shown in FIG. 2 . The difference is that the first reflective sheet of the lamp 300 includes a stepped structure.

For example, in this embodiment, the first reflective surface 304a of the first reflective sheet 304 of the lamp 300 includes a first part 304a1 and a second part 304a2. The first part 304a1 extends from the bottom 101a of the housing 101 to the opening 101o of the housing 101, and includes a plurality of (inclined/planar) stepped reflection areas R31-R35 connected in series, forming a stepped structure. The second part 304a2 of the first reflective surface 304a is connected to the first part 304a1, and extends and covers the bottom 101a of the housing 101.

Please refer to Figure 4. Figure 4 is a partial enlarged view of the cross-sectional structure of the lamp 400 according to yet another embodiment of this specification. In this embodiment, the structure of the lamp 400 is substantially similar to the lamp 200 shown in FIG. 2 . The difference is that the first reflective sheet 404 of the lamp 400 has an arc-shaped first reflective surface 404 a.

For example, in this embodiment, the first reflective surface 404a of the first reflective sheet 404 includes a first part 404a1 and a second part 404a2. The first portion 404a1 is a curved surface extending from the bottom 101a of the housing 101 to the opening 101o of the housing 101. The second part 404a2 of the first reflective surface 404a is connected to the first part 404a1, and extends and covers the bottom 101a of the housing 101.

Please refer to Figure 5 , which is a partial enlarged view of the cross-sectional structure of the lamp 500 according to another embodiment of this specification. In this embodiment, the structure of the lamp 500 is substantially similar to the lamp 100 shown in FIGS. 1A and 1B . The difference is that the first reflective sheet 504 of the lamp 500 has a plurality of reflective areas isolated from each other.

For example, in this embodiment, the first reflective surface 504a of the first reflective sheet 504 of the lamp 500 includes a plurality of mutually isolated (inclined/planar) isolated reflection areas R51-R54, which are arranged in intervals from the opening 101o of the housing 101 to The bottom 101a of the housing 101 covers the bottom 101a of the housing 101 in parallel rows.

Please refer to Figure 6. Figure 6 is an enlarged view of a partial cross-sectional structure of a lamp 600 according to yet another embodiment of this specification. In this embodiment, the structure of the lamp 600 is substantially similar to the lamp 300 shown in FIG. 3 . The difference is that the first reflective sheet of the lamp 600 includes a wavy structure. In this embodiment, the first reflective surface 604a of the first reflective sheet 604 of the lamp 600 includes a first part 604a1 and a second part 604a2. The first part 604a1 extends from the bottom 101a of the housing 101 to the opening 101o of the housing 101, and includes a plurality of arc-shaped reflection areas R61-R63 connected in series to form a ladder-like structure. The second part 604a2 of the first reflective surface 604a is connected to the first part 604a1, and extends and covers the bottom 101a of the housing 101.

This specification provides a lamp installed on the wall, which includes a housing with an opening facing the wall, at least one light source located in the housing, and at least one reflective sheet located on the inner wall of the housing to provide the light source with After the light beam is reflected at least once by the reflective sheet, it is then emitted from the opening to the wall, thereby increasing the probability of the light beam being mixed inside the housing and improving the uniformity of the emitted light.

Although the present invention has been disclosed above in terms of preferred embodiments, they are not intended to limit the present invention. Anyone with ordinary knowledge in the technical field may not deviate from the present invention. Some modifications and embellishments may be made within the spirit and scope of the invention. Therefore, the protection scope of the present invention shall be determined by the appended patent application scope.

11:Wall

100:Lamps

101: Shell

101a: Bottom

101b:Inner wall

101c: Combined sleeve

101d: Central axis of the opening

101s:Cavity

101o: opening of cavity

102: Fixed seat

102a: Engagement part

102b: Fixed part

103: Translucent lampshade

103b: Upper cover sleeve

103c: Translucent cover

104: First reflective sheet

104a: First reflective surface

105:Light source

105a:Light-emitting unit

105b:Light panel

105o: Center opening of the light panel

106: Decorative parts

107:Second reflective sheet

107a: Second reflective surface

H: Combined with the central axis of the sleeve

θ: obtuse angle

α1: acute angle

Claims (10)

A lamp, arranged on a wall, including: a housing having a bottom, an opening and an inner wall, the inner wall connecting the bottom and the opening to define a cavity, and the opening faces the wall; A first reflective sheet with a first reflective surface on the inner wall; and a light source, which is a ring-shaped light bar, located in the cavity to provide at least one light beam that is reflected by the first reflective surface Eject from the opening to the wall. The lamp of claim 1, wherein the first reflective surface extends from the bottom to the opening, and the opening has a size larger than the bottom. The lamp of claim 1, wherein the first reflective surface has a curved surface, a stepped structure or a wavy structure extending from the bottom to the opening. The lamp according to claim 1 further includes a second reflective sheet located outside the opening and having a second reflective surface facing the first reflective surface. The lamp of claim 1, wherein the first reflective sheet is conformal to the inner wall and forms an obtuse angle with the bottom, and the first reflective sheet extends and covers the bottom. The lamp of claim 1, wherein the first reflective surface includes a plurality of reflective areas isolated from each other. The lamp according to claim 1 further includes a light-transmitting lampshade, wherein the light-transmitting lampshade is an annular light-transmitting shell covering the outside of the annular light bar. The lamp according to claim 1, further comprising a translucent lampshade located between the light source and the first reflective surface, and between the light source and the opening; wherein the light source includes: a lamp panel; and at least one The light-emitting element is located on the lamp board and faces the transparent lampshade. The lamp of claim 8, wherein the lamp panel and the bottom form a second acute angle, and there is a distance greater than 9 mm between the at least one light-emitting element and the transparent lampshade. The lamp of claim 8, wherein the light-transmitting lampshade includes a resin body and a light diffusing agent dispersed in the resin body.

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