CN104214588B - A kind of floodlight with external grid - Google Patents
A kind of floodlight with external grid Download PDFInfo
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- CN104214588B CN104214588B CN201310208397.9A CN201310208397A CN104214588B CN 104214588 B CN104214588 B CN 104214588B CN 201310208397 A CN201310208397 A CN 201310208397A CN 104214588 B CN104214588 B CN 104214588B
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- 238000005286 illumination Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
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- 238000012423 maintenance Methods 0.000 description 2
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Abstract
The present invention provides a kind of floodlight with external grid, and which includes：Lamp housing；Light source；Grid；Wherein, the grid includes：Shell, the cage connection is at the opening of lamp housing, and its shape and size is adapted with the opening；And the unit that is in the light, the unit that is in the light is connected with shell positioned at enclosure；The unit that is in the light includes：At least two piece first light barrier；At least two piece second light barrier, second light barrier are connected with first light barrier；Wherein, be respectively positioned on positioned at the bottom of the first light barrier of outermost and the second light barrier on the connecting line of light source and cover top portion or connecting line lower section, be respectively positioned on per the bottom of the first light barrier of block and the second light barrier on first light barrier or the top of the second light barrier and the connecting line of light source in the outside being adjacent or connecting line lower section, the arbitrary angle formed between first light barrier and the top of the second light barrier and the connecting line of light source and the vertical center line of light source of most inner side is less than 25 degree.
Description
Technical field
The present invention relates to lighting with optical arena, in particular it relates to a kind of floodlight with external grid.
Background technology
High-power light projector type light fixture is typically mounted at ground or lower, irradiates upwards, for body of wall brightening, main to irradiate
Thing is building masonry wall.But due to its installation on the ground or lower, lamp luminescence face and illuminator are all exposed to building week
Enclose in the visual range of the pedestrian and driver for passing through, can be to human eye according to into injury, while dazzle also influences whether driver's
Drive, traffic accident can be caused.Also having some light projector type light fixtures to reach using grid at present makes the soft not dazzling mesh of light
, but some built-in grids can affect light source heat radiation, reduce light source life, increase maintenance cost and maintenance cost.
The content of the invention
For the problems of the prior art, it is an object of the invention to provide a kind of floodlight with external grid.
According to an aspect of the present invention, there is provided a kind of floodlight with external grid, which includes：Lamp housing, it is described
Lamp housing is in semi-surrounding structure, and the top of the lamp housing is an opening；Light source, the light source are located in the lamp housing；Grid, it is described
Grid is located at the top of the lamp housing, and is connected with the opening；Characterized in that, the grid includes：Shell, it is described outer
Shell is connected at the opening of the lamp housing, and its shape and size is adapted with the opening；And the unit that is in the light, it is described to be in the light
Unit is connected with the shell positioned at the enclosure；The unit that is in the light includes：At least two piece first light barrier, it is described
The two ends of the first light barrier are connected with the shell；At least two piece second light barrier, second light barrier and described first
Light barrier is connected, and its two ends is connected with the shell；Wherein, positioned at the first light barrier of outermost and the bottom of the second light barrier
Portion is respectively positioned on the light source and the connecting line of the cover top portion or positioned at the connecting line of the light source and the cover top portion
Lower section, by the light that the light source is launched be limited in it is described be in the light in the stop of unit, per the first light barrier described in block and the
The bottom of two light barriers is respectively positioned on the top of first light barrier or the second light barrier in the outside being adjacent and the connection of light source
On line or connecting line lower section, most inner side the first light barrier and the top of the second light barrier and the connecting line of the light source and institute
The arbitrary angle formed between the vertical center line for stating light source is less than 25 degree.
Preferably, the unit that is in the light includes four piece of first light barrier and six piece of second light barrier, per first gear described in block
The two ends of tabula rasa and second light barrier are connected with the shell.
Preferably, the unit that is in the light includes two piece of first light barrier and two piece of second light barrier, per first gear described in block
The two ends of tabula rasa and second light barrier are connected with the shell.
Preferably, it is described parallel to each other per the first light barrier of block, it is parallel to each other per the second light barrier of block, per described in block first
Light barrier and per orthogonal between the second light barrier of block, constitutes one or more groined types.
Preferably, between the vertical center line of the connecting line and the light source of the light source and the lamp housing top inner surface
The angle of formation is less than or equal to 65 degree.
Preferably, the lamp housing opening for rectangle, square or circle in any one.
Preferably, it is weldingly connected between first light barrier and second light barrier.
Preferably, welding is between the two ends of first light barrier and the two ends of the second light barrier and the shell
It is connected.
Preferably, the shell is welded at the opening of the lamp housing.
Preferably, the light source is LED.
By providing a kind of floodlight with external grid, which passes through the anti-dazzle external grid of design to the present invention, by lamp
The light of tool is limited, and makes high light line for body of wall brightening, and the personnel that avoid passing by from around light fixture or driver regard
Feel scope.And building masonry wall mostly is plane, so hot spot is square, illumination in the plane could be more uniform, more preferably
Ground meets the requirement of body of wall brightening.The light fixture while light fixture dazzle is solved completes body of wall brightening work well, reduces peace
High-power light-projecting lamp loaded on ground or lower, it is to avoid to passing by its pedestrian or driver according to injuring into vision（Such as 2000 watts
Illuminator is look at 1 meter of light source people distance can blinding）Or dazzle pollution, the brightening illuminating effect of body of wall is can guarantee that again.
Description of the drawings
Detailed description non-limiting example made with reference to the following drawings by reading, the further feature of the present invention,
Objects and advantages will become more apparent upon：
Fig. 1 a illustrate that the longitudinal section of facing of the floodlight with external grid of first embodiment of the invention is tied
Structure schematic diagram；
Fig. 1 b illustrate that the longitudinal section of facing of the floodlight with external grid of first embodiment of the invention has
Body structure chart；
Fig. 2 a illustrate the side-looking longitudinal section knot of the floodlight with external grid of first embodiment of the invention
Structure schematic diagram；
Fig. 2 b illustrate the side-looking longitudinal section tool of the floodlight with external grid of first embodiment of the invention
Body structure chart；
Fig. 3 illustrates the top view of the floodlight with external grid of first embodiment of the invention；
Fig. 4 illustrates input design sketch of the light source of first embodiment of the invention after grid；And
Fig. 5 illustrates input design sketch of the light source of first embodiment of the invention after grid.
Specific embodiment
With reference to the accompanying drawings and examples the technology contents of the present invention are described further：
What Fig. 1 a showed the floodlight with external grid of first embodiment of the invention faces longitudinal section
Structural representation.Specifically, the floodlight with external grid includes lamp housing 110, light source 120 and grid 130.Its
In, lamp housing 110 is in semi-surrounding structure, and the top of lamp housing 110 is an opening 111.Light source 120 is located in lamp housing 110, light source 120
A preferably LED.Grid 130 is located at the top of lamp housing 110, and is connected with the opening 111 of lamp housing 110.More specifically,
Grid 130 includes：Shell 131 and the unit that is in the light.Shell 131 is connected at the opening 111 of lamp housing 110.Preferably, shell 131
It is weldingly connected with the opening 111 of lamp housing 110.131 size of shell is adapted with opening 111.The unit that is in the light is located at described outer
It is connected with the shell inside shell.More specifically, the unit that is in the light includes at least two piece first light barrier 132 and at least
Two piece of second light barrier 133（Referring to Fig. 2 a）.Wherein, the second light barrier 133 is connected with the first light barrier 132.Preferably,
It is weldingly connected between one light barrier 132 and the second light barrier 133.The two ends of the first light barrier 132 and the second light barrier 133
Two ends are connected with shell.Preferably, the two ends of the two ends of the first light barrier 132 and the second light barrier 133 and shell 131
Between be also and be weldingly connected.Further, positioned at the equal position in bottom of outermost the first light barrier 132 and the second light barrier 133
The lower section of the connecting line on the connecting line at the top of light source 120 with shell 131 or at the top of light source 120 with shell 131, by light
The light of the transmitting of source 120 be limited in it is described be in the light in the stop of unit, per block the first light barrier 132 and the second light barrier 133
Bottom is respectively positioned on first light barrier 132 in the outside being adjacent or the top of the second light barrier 133 and the connecting line of light source
Or the lower section of connecting line, the connecting line of top and the light source 120 of first light barrier 132 and the second light barrier 133 of most inner side with
The arbitrary angle formed between the vertical center line of light source 120 is less than 25 degree.
More specifically, in the embodiment shown in Fig. 1 a, the unit that is in the light includes four piece of first light barrier 132 and six pieces
Second light barrier 133.Fig. 1 a illustrate only four piece of first light barrier 132.Two ends per the first light barrier of block 132 are and shell
131 are connected.It is highly preferred that referring to Fig. 1 a, it is parallel to each other per block the first light barrier 132.Wherein, positioned at two piece first of outermost
The bottom of light barrier 132 is on the connecting line at the top of light source 120 with shell 131（Fig. 1 a are shown in phantom）, positioned at two pieces of inner side
The bottom of the first light barrier 132 is located on the top of the first light barrier 132 in the outside being adjacent and the connecting line of light source（Figure
1a is shown in phantom）, and the connecting line of the top of two piece of first light barrier 132 of inner side and light source 120（Fig. 1 a are shown in phantom）With
The vertical center line of light source 120（Fig. 1 a are shown in phantom）Between arbitrary angle for being formed be less than 25 degree.
Further, in some change case, the quantity of the first light barrier 132 can be change.For example become at one
Change in example, the unit that is in the light can include two piece of first light barrier.In another change case, the unit that is in the light can be wrapped
Include three piece of first light barrier.Or in another change case, the unit that is in the light can include six piece of first light barrier.More enter
One step ground, it is preferable that referring to Fig. 1 a, the first light barrier of polylith 132 is symmetrical two-by-two along the center line of 131 side wall of shell.And another
In a little change case, can not also be symmetrical along the center line of 131 side wall of shell between the first light barrier of polylith 132, for example, become at one
Change in example, the unit that is in the light can include three piece of first light barrier, wherein, one is provided with the left of the center line of 131 side wall of shell
The first light barrier of block 132, is provided with two piece of first light barrier 132 on the right side of the center line of 131 side wall of shell.Again for example, at another
In change case, the unit that is in the light can include five piece of first light barrier, wherein, it is provided with the left of the center line of 131 side wall of shell
Two piece of first light barrier 132, is provided with three piece of first light barrier 132 on the right side of the center line of 131 side wall of shell.Those skilled in the art
Understand, in above-mentioned change case, the company of light source 120 and shell 131 is respectively positioned on positioned at the bottom of outermost first light barrier 132
In wiring or connecting line lower section, be respectively positioned on first light barrier in the outside being adjacent per the bottom of the first light barrier of block 132
On 132 top and the connecting line of light source 120 or connecting line lower section, and the most top of the first light barrier 132 of inner side and light
The arbitrary angle formed between the vertical center line of the connecting line and light source 120 in source 120 is less than 20 degree.By the polylith first
Light of the constraint of light barrier 132 by light source 120 on this section is limited in the first light barrier 132 positioned at most inner side, so as to
Reduce the angle of blocking that whole grid 130 emits beam to light source 120 on this section.These change case can give reality
Existing, it will not go into details herein.
Further, in this embodiment, the opening 111 of lamp housing 110 is shaped as rectangle, and the shape of shell 131 is also
Rectangle.And in some change case, the shape of the opening 111 of lamp housing 110 can also be square or circular, and correspondingly, outward
The shape of shell 131 can also be consistently square or circular with opening 111.Skilled artisan understands that these change case
Can be achieved, it will not go into details herein.
Further, it will be appreciated by those skilled in the art that as shell 131 is connected with the opening 110 of lamp housing 110, because
This, the top of the light for distributing of light source 120 from shell 131 sends.Further, the it is located at two piece of first light barrier of outermost
132 bottom is located on the connecting line at the top of light source 120 and shell 131（Fig. 1 a are shown in phantom）.Therefore, from shell 131
The light that top sends is stopped by outermost two piece of first light barrier 132, is restricted to outermost two piece first and is in the light
The top of plate 132.Similarly, two piece of first light barrier 132 of the inner side adjacent with outermost two piece of first light barrier 132
Bottom is on light source 120 with the connecting line at the top of outermost first light barrier 132（Fig. 1 a are shown in phantom）, therefore, from
The light that the top of outermost two piece of first light barrier 132 sends is further by two piece of first light barrier of its adjacent inner side
132 are stopped, similarly, after the light of light source 120 is repeatedly stopped, are restricted to two piece of first light barrier 132 of most inner side
Top.
What Fig. 1 b showed the floodlight with external grid of first embodiment of the invention faces longitudinal section
Concrete structure diagram.Specifically, Fig. 1 b also show light source 120 and the first light barrier 132 and shell 131 on the basis of Fig. 1 a
Between launch angle.Its particular location relation can be found in above, and it will not go into details herein.
Fig. 2 a show the side-looking longitudinal section of the floodlight with external grid of first embodiment of the invention
Structural representation.Specifically, at the section shown in Fig. 2 a, the unit that is in the light includes six piece of second light barrier 133, with Fig. 1 a
At shown section similarly, the two ends per the second light barrier of block 133 are connected with shell 131.It is highly preferred that referring to Fig. 2 a,
It is parallel to each other per block the second light barrier 133.Wherein, positioned at the bottom of two piece of second light barrier 133 of outermost be located at light source 120 with
On connecting line at the top of shell 131（Fig. 2 a are shown in phantom）, positioned at the bottom position of its adjacent two piece of second light barrier 133 in inner side
On connecting line of the top of outermost two piece of second light barrier 133 with light source 120（Fig. 2 a are shown in phantom）, most the two of inner side
The bottom of the second light barrier of block 133 is located at the top of its adjacent two piece of second light barrier 133 in outside and the connecting line of light source 120
On（Fig. 2 a are shown in phantom）, and the most connecting line of the top of two piece of second light barrier 133 of inner side and light source 120（Fig. 2 a dotted lines
Illustrate）With the vertical center line of light source 120（Fig. 2 a are shown in phantom）Between arbitrary angle for being formed be less than 25 degree.
Further, in some change case, in Fig. 2 a, the quantity of the second light barrier 133 also can be change.And it is excellent
Selection of land, it is preferable that referring to Fig. 2 a, center line of the second light barrier of polylith 133 also along the side wall of shell 131 is symmetrical two-by-two.And another
In some change case, can also be asymmetric between the first light barrier of polylith 132.It will be appreciated by those skilled in the art that the second light barrier
The mode of light transmitting of 133 limiting light sources 120 is launched with the light of 132 limiting light source 120 of the first light barrier in above-mentioned Fig. 1 a
Mode it is identical, and these change case can be achieved, and it will not go into details herein.
Fig. 2 b show the side-looking longitudinal section of the floodlight with external grid of first embodiment of the invention
Concrete structure diagram.Specifically, Fig. 2 b also show light source 120 and the second light barrier 133 and shell 131 on the basis of Fig. 2 a
Between launch angle.Its particular location relation can be found in above, and it will not go into details herein.
Fig. 3 shows the top view of the floodlight with external grid of first embodiment of the invention.Specifically
Ground, referring to Fig. 3, the unit that is in the light includes four piece of first light barrier 132 and six piece of second light barrier 133.Shown in Fig. 3
In preference, per the first light barrier of block 132 and per orthogonal between the second light barrier of block 133, multiple groined types are constituted.
Further, in a change case, the unit that is in the light can also include two piece of first light barrier 132 and two
The second light barrier of block 133.It is preferably orthogonal between two piece of first light barrier 132 and two piece of second light barrier 133, constitute
One groined type.It will be appreciated by those skilled in the art that this change case can equally be achieved, it will not go into details herein.
Further, with reference to above-mentioned Fig. 1 a, Fig. 2 a and embodiment illustrated in fig. 3, it is preferable that light source 120 and lamp housing 110
The connecting line of 111 inner surface of opening and the vertical center line of light source 120 between the angle that formed be less than or equal to 65 degree.Such as Fig. 1 b
Shown, in the preference of the present invention, as shell 131 is connected with the opening 111 of lamp housing 110, therefore light source 120 is distributed
Top of the light from shell 131 send.Wherein, it is vertical with light source 120 with the connecting line of light source 120 at the top of shell 131
The angle formed between center line is 50.97 ° ± 5 ° of visible light source angle, two pieces of outermost first light barriers 132 and light
The angle formed between the vertical center line in source 120 is 50.97 ° ± 5 ° to 39.06 ° ± 5 ° of visible light source angle, inner side
The angle formed between two piece of first light barrier 132 and the vertical center line of light source 120 is 39.06 ° ± 5 ° to 24.99 ° ± 5 °
Visible light source angle, therefore, on this section, grid 130 is decreased to 50 ° or so to the angle of blocking of light source 120.And in figure
In 2b, as the opening 111 of lamp housing 110 is rectangle, be open 111 length and width it is different, therefore, with light source 120 at the top of shell 131
The angle formed between the vertical center line of connecting line and light source 120 is 39.99 ° ± 5 ° of visible light source angle, outermost
Two piece of second light barrier 133 and the angle that 120 vertical center line of light source is formed are 39.99 ° ± 5 ° to 30.96 ° ± 5 ° visible
Light-source angle, is hung down with light source 120 positioned at adjacent two piece second of the inner side light barrier 133 of outermost two piece of second light barrier 133
The angle that straight center line is formed is 30.96 ° ± 5 ° to 20.38 ° ± 5 ° of visible light source angle, positioned at two piece second of most inner side
The angle that light barrier 133 is formed with 120 vertical center line of light source is 20.38 ° ± 5 ° to 12.99 ° ± 5 ° of visible light source angle,
Therefore, in this section, grid 130 is decreased to 26 ° or so to the angle of blocking of light source 120.
Fig. 4 shows input design sketch of the light source of first embodiment of the invention after grid.
Fig. 5 shows input design sketch of the light source of first embodiment of the invention after grid.
Specifically, Fig. 4 and Fig. 5 are using the input design sketch lost after light.The light fixture possesses two functions：The
One, the illuminator of the invisible lamp light source of people passed by made from light fixture side, second, light fixture goes out light and is adapted to the bright of planar shaped body of wall
Change.Therefore light barrier adopts planar design, and because light is after parallel plane light barrier, luminous intensity distribution hot spot is square, and it is right to be adapted to
Body of wall carries out Uniform Illumination（As shown in Figure 4 and Figure 5）.Former light fixture self by lamp housing after block about 130 degree of angle, i.e., greatly
About the people of 1.7 meters of height can just see light source in the distance apart from about 3 meters of light fixture, and after increasing grid, and light fixture is blocked
Angle is reduced to 40 degree or so, i.e., the personnel of 1.7 meters of height can just see light source in half meter of light fixture.Due to light fixture compared with
Heat, common people are closely near light fixture, therefore pedestrian is effectively protected.
More further, it will be appreciated by those skilled in the art that the present invention is by providing a kind of light projector with external grid
Light fixture, which passes through the anti-dazzle external grid of design, the light of light fixture is limited, makes high light line for body of wall brightening, and avoid
The personnel passed by from around light fixture or the visual range of driver.And building masonry wall mostly is plane, so hot spot is square,
Illumination in plane could be more uniform, preferably meets the requirement of body of wall brightening.The light fixture is solving the same of light fixture dazzle
When, body of wall brightening work is completed well, reduction is installed on the high-power light-projecting lamp of ground or lower, it is to avoid to passing by its row
People or driver are according to injuring into vision（Can blinding as illuminator is look at 2000 watts of 1 meter of light source people distance）Or dazzle pollution, and
Can guarantee that the brightening illuminating effect of body of wall.
Above the specific embodiment of the present invention is described.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various modifications or modification within the scope of the claims, this not shadow
Ring the flesh and blood of the present invention.
Claims (9)
1. a kind of floodlight with external grid, which includes：
Lamp housing, the lamp housing are in semi-surrounding structure, and the top of the lamp housing is an opening；
Light source, the light source are located in the lamp housing；
Grid, the grid are located at the top of the lamp housing, and are connected with the opening；
Characterized in that, the grid includes：
Shell, the cage connection is at the opening of the lamp housing, and its shape and size is adapted with the opening；And
Be in the light unit, and the unit that is in the light is connected with the shell positioned at the enclosure；
The unit that is in the light includes：
At least two piece first light barrier, the two ends of first light barrier are connected with the shell；
At least two piece second light barrier, second light barrier are connected with first light barrier, its two ends and the shell
It is connected；
It is parallel to each other per the first light barrier described in block, it is parallel to each other per the second light barrier described in block, per the first light barrier described in block
With per orthogonal between the second light barrier described in block, one or more groined types are constituted；
Wherein, the light source is respectively positioned on the cover top portion positioned at the bottom of the first light barrier of outermost and the second light barrier
On connecting line or positioned at the light source and the lower section of the connecting line of the cover top portion, the light that the light source is launched is limited in
In the stop of the unit that is in the light, the outside being adjacent is respectively positioned on per the bottom of the first light barrier and the second light barrier described in block
The first light barrier or the top of the second light barrier and the connecting line of light source on or connecting line lower section, most the first of inner side be in the light
The arbitrary folder formed between the connecting line and the vertical center line of the light source at the top and the light source of plate and the second light barrier
Angle is less than 25 degree.
2. the floodlight with external grid according to claim 1, it is characterised in that the unit that is in the light includes four
The first light barrier of block and six piece of second light barrier, the two ends per the first light barrier described in block and second light barrier with it is described
Shell is connected.
3. the floodlight with external grid according to claim 1, it is characterised in that the unit that is in the light includes two
The first light barrier of block and two piece of second light barrier, the two ends per the first light barrier described in block and second light barrier with it is described
Shell is connected.
4. the floodlight with external grid according to claim 1, it is characterised in that the light source and the lamp housing
The angle formed between the vertical center line of the connecting line of top inner surface and the light source is less than or equal to 65 degree.
5. the floodlight with external grid according to claim 1, it is characterised in that the opening of the lamp housing is square
Any one in shape or circle.
6. the floodlight with external grid according to claim 1, it is characterised in that first light barrier and institute
State and be weldingly connected between the second light barrier.
7. the floodlight with external grid according to claim 1, it is characterised in that the two of first light barrier
It is between the two ends and the shell of end and the second light barrier and is weldingly connected.
8. the floodlight with external grid according to claim 1, it is characterised in that the shell is welded in described
At the opening of lamp housing.
9. the floodlight with external grid according to claim 1, it is characterised in that the light source is LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310208397.9A CN104214588B (en) | 2013-05-29 | 2013-05-29 | A kind of floodlight with external grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310208397.9A CN104214588B (en) | 2013-05-29 | 2013-05-29 | A kind of floodlight with external grid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104214588A CN104214588A (en) | 2014-12-17 |
| CN104214588B true CN104214588B (en) | 2017-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310208397.9A Active CN104214588B (en) | 2013-05-29 | 2013-05-29 | A kind of floodlight with external grid |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113154338B (en) * | 2021-02-02 | 2022-08-26 | 宁波英泰克照明有限公司 | LED lamp panel with light barrier |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2214592Y (en) * | 1994-06-16 | 1995-12-06 | 上海曙光灯具厂 | Prism lamp set |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003068107A (en) * | 2001-08-29 | 2003-03-07 | Matsushita Electric Works Ltd | Louvered projector |
| CN200949775Y (en) * | 2006-09-07 | 2007-09-19 | 田温志 | High power cold light zoom reflective spotlight |
| JP5000464B2 (en) * | 2007-11-26 | 2012-08-15 | パナソニック株式会社 | Louver built-in projector |
| CN102537704B (en) * | 2010-12-30 | 2014-07-23 | 海洋王照明科技股份有限公司 | Anti-glare lamp |
| WO2012136572A1 (en) * | 2011-04-05 | 2012-10-11 | Valitutti Pierfranco | Light source for testing a photovoltaic panel or cell |
-
2013
- 2013-05-29 CN CN201310208397.9A patent/CN104214588B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2214592Y (en) * | 1994-06-16 | 1995-12-06 | 上海曙光灯具厂 | Prism lamp set |
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| Publication number | Publication date |
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| CN104214588A (en) | 2014-12-17 |
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