CN104654119A - Large-angle incident LED lighting lamp capable of secondary light distribution - Google Patents
Large-angle incident LED lighting lamp capable of secondary light distribution Download PDFInfo
- Publication number
- CN104654119A CN104654119A CN201310598908.2A CN201310598908A CN104654119A CN 104654119 A CN104654119 A CN 104654119A CN 201310598908 A CN201310598908 A CN 201310598908A CN 104654119 A CN104654119 A CN 104654119A
- Authority
- CN
- China
- Prior art keywords
- lampshade
- light source
- board assembly
- printed board
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/04—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings
- F21V3/06—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material
- F21V3/062—Globes; Bowls; Cover glasses characterised by materials, surface treatments or coatings characterised by the material the material being plastics
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/30—Use or application of lighting devices on or in particular types of vehicles for aircraft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2101/00—Point-like light sources
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
The invention provides a large-angle incident LED lighting lamp capable of secondary light distribution. The large-angle incident LED lighting lamp comprises a light source printed board assembly and a control printed board assembly; the large-angle incident LED lighting lamp is structurally characterized in that a base is arranged behind the light source printed board assembly, the cross-section shape of the base is a right trapezoid and the light source printed board assembly is arranged on the inclined edge of the right trapezoid; a lampshade sleeves the base; the shape of the internal section of the lampshade is a right-angled sector in the form of a parabolic curved edge; the control printed circuit board assembly is arranged on the lampshade and connected with the lampshade; an LED light source on the inclined surface of the base is arranged in the focal line of the parabolic surface of the lampshade. Compared with the prior art, the central light intensity of the LED light source is projected to a farther position by virtue of secondary light distribution, and therefore, the index square influence of distance factor contrast distribution is reduced. The problem of possible existing interference light caused by the absence of an interior cover is solved by limiting the light exit.
Description
Technical field
The present invention relates to assist illuminator in aircraft machine, in particular for the lighting lamp for work above the inside control panel of airliner, air truck.
Background technology
Large-scale passenger and freight interior of aircraft has numerous distribution control panel, and usual distribution control panel is installed on aircraft front and back cabin sidewall more.Due to be subject to installing space restriction, the lighting of existing control panel and metope is arranged on the upper edge in area to be illuminated territory mostly, causes light fixture incident angle excessive, cause uneven illumination and range of exposures limited.Easily form dazzle near lamp position, affect operating personnel's interpretation and operation; And the minimal illumination requirement of human viewable cannot be met away from the illumination of lamp position.Simultaneously because LED light is distributed as by force normal function form, central light strength is excessive, has more increased the weight of the impact uneven on illumination.
Summary of the invention
The technical problem to be solved in the present invention is to provide the large angle incidence LED illumination lamp of secondary light-distribution, can meet the lighting demand of wide-angle above control panel.
For solving the problems of the technologies described above, the large angle incidence LED illumination lamp of secondary light-distribution of the present invention, comprise light source printed board assembly, control printed board assembly, its structural feature is: the rear of light source printed board assembly is provided with pedestal, the cross sectional shape of pedestal is at right angles trapezoidal, and light source printed board assembly is placed on the hypotenuse of right-angled trapezium; Lampshade is placed on pedestal, and the right angle on the shape of lampshade inner section parabolically bent limit is fan-shaped, controls printed board assembly and is placed on lampshade, be connected with lampshade; On pedestal inclined-plane, the LED light source of light source printed board assembly is placed on the paraboloidal focal line of lampshade.LED light source by after lampshade parabolic reflector and bottom surface light-emitting window transmission for control panel provides illumination.
Described lampshade bottom surface is provided with light-emitting window.
Present invention improves over the lighting lamp structure design of wide-angle above large-scale passenger and freight interior of aircraft control panel, compared with prior art, its beneficial effect is:
1. adopt secondary light-distribution, the central light strength of LED light source is projected remotely, thus reduces
the index squared impact of middle distance factor pair Illumination Distribution; Overcome the problem that large angle incidence causes uneven illumination even simultaneously.
2. compensate for by restriction light-emitting window the problem covering the stray light that may exist without interior trim.
Accompanying drawing explanation
Fig. 1 is the large angle incidence LED illumination lamp structural representation of secondary light-distribution of the present invention;
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the sectional view of Fig. 1.
Fig. 4 is the large angle incidence LED illumination lamp circuit theory diagrams of secondary light-distribution of the present invention.
In figure, 1 is lampshade, and 2 is light source printed board assemblys, and 3 is control printed board assembly, and 4 is pedestals, and 5 is light-emitting windows.
Detailed description of the invention
Below with reference to drawings and Examples, the present invention is described in further detail.
As depicted in figs. 1 and 2, be the large angle incidence LED illumination lamp schematic diagram of secondary light-distribution, light source printed board assembly 2 comprises high-power LED light source, and light source printed board assembly 2 is fixed on pedestal 4 by pan head screw; Controlling printed board assembly 3 is fixed on lampshade 1 by nut, and lampshade 1 is connected with pedestal 4 by tapping screw.According to the reflection law of parabolic reflector, be positioned at light source emergent ray on focus or focal line after reflection with parallel light emergence, therefore need ensure during design lampshade 1 and light source printed board assembly 2 complete be connected with pedestal 4 after high-power LED light source can be made to be positioned on the focal line of lampshade reflection paraboloid.
As shown in Figure 3, the cross sectional shape of pedestal 4 is at right angles trapezoidal, and the scope of base sharp angle α is 67 ° ~ 72 °, and light source printed board assembly 2 is placed on the hypotenuse of right-angled trapezium; The right angle on the shape of lampshade 1 inner section parabolically bent limit is fan-shaped, and after assembling, on pedestal 4 inclined-plane, LED light source is placed on the paraboloidal focal line of lampshade 1.Makrolon material selected by lampshade 1, inner parabolic reflecting surface carries out vacuum aluminum-coated, ensure internal reflection parabola high reflectance, outer surface sprays ash paint, the isolated interference light that may cause human eye, the lower surface of lampshade 1 is processed with a light-emitting window 5.After completing assembling, on pedestal 4 inclined-plane, the normal state emergent light of LED light source should be modified to nearly parallel light emergence by the reflection paraboloid of lampshade 1 by LED light source, thus realizes secondary light-distribution.Pedestal 4 is the supporting construction of lampshade 1 and light source printed board assembly 2, and as the heat dissipation conductor of light source printed board assembly 2.
Light source printed board assembly 2 selects aluminium base printed board, can be effectively LED light source heat conduction, to ensure in the safe temperature range that light source can be operated in lower than maximum junction temperature.LED light source selects the neutral white light source of high-power about 4500K colour temperature, avoids low color temperature light sources and is not suitable as work light and high color temperature light source uses the problem easily causing visual fatigue for a long time.
As shown in Figure 4, be the large angle incidence LED illumination lamp circuit theory diagrams of secondary light-distribution of the present invention.Basic circuit is formed by a commutation diode D1, four regulating resistor R, Zener diode D2 and seven high-power LED light source.Control printed board assembly 3 front end and connect power supply, rear end connects light source printed board assembly 2.
When illuminating lamp works, control printed board assembly 3 to switch on power, the high-power LED light source of light source printed board assembly 2 is reflected by the reflection paraboloid of lampshade 1, penetrates to control panel from lampshade 1 lower surface light-emitting window 5, penetrate that light is even, shooting angle is large, achieve the illumination of secondary light-distribution.
The above description of this invention does not have restricted; if those of ordinary skill in the art enlightens by it; when not departing from the protection of the claims in the present invention, making other malformation of the present invention and embodiment, all belonging to protection scope of the present invention.
Claims (3)
1. the large angle incidence LED illumination lamp of secondary light-distribution, comprises light source printed board assembly, controls printed board assembly, it is characterized in that:
Pedestal is located at the rear of light source printed board assembly, and the cross sectional shape of pedestal is at right angles trapezoidal, and light source printed board assembly is placed on the hypotenuse of right-angled trapezium;
Lampshade is placed on pedestal, and the right angle on the shape of lampshade inner section parabolically bent limit is fan-shaped, controls printed board assembly and is positioned on lampshade, be connected with lampshade;
On pedestal inclined-plane, the LED light source of light source printed board assembly is placed on the paraboloidal focal line of lampshade.
2. the large angle incidence LED illumination lamp of secondary light-distribution according to claim 1, is characterized in that: described lampshade bottom surface is provided with light-emitting window.
3. the large angle incidence LED illumination lamp of secondary light-distribution according to claim 1 and 2, is characterized in that: the material of described lampshade is transparent Merlon, lampshade outer surface spraying grey sub-gloss varnish, vacuum aluminum-coated on lampshade parabolic inner surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310598908.2A CN104654119A (en) | 2013-11-25 | 2013-11-25 | Large-angle incident LED lighting lamp capable of secondary light distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310598908.2A CN104654119A (en) | 2013-11-25 | 2013-11-25 | Large-angle incident LED lighting lamp capable of secondary light distribution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104654119A true CN104654119A (en) | 2015-05-27 |
Family
ID=53245563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310598908.2A Pending CN104654119A (en) | 2013-11-25 | 2013-11-25 | Large-angle incident LED lighting lamp capable of secondary light distribution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104654119A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101023295A (en) * | 2004-09-20 | 2007-08-22 | 皇家飞利浦电子股份有限公司 | Led collimator element with a semiparabolic reflector |
| CN201281293Y (en) * | 2008-10-22 | 2009-07-29 | 深圳市中电开拓实业有限公司 | Focusing apparatus |
| CN102042520A (en) * | 2009-10-20 | 2011-05-04 | 鸿富锦精密工业（深圳）有限公司 | Light source module |
| CN201973496U (en) * | 2010-12-30 | 2011-09-14 | 无锡来德电子有限公司 | LED (Light Emitting Diode) lighting lamp |
| CN102483209A (en) * | 2009-09-04 | 2012-05-30 | 斯坦雷电气株式会社 | Vehicle lamp fitting |
-
2013
- 2013-11-25 CN CN201310598908.2A patent/CN104654119A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101023295A (en) * | 2004-09-20 | 2007-08-22 | 皇家飞利浦电子股份有限公司 | Led collimator element with a semiparabolic reflector |
| CN201281293Y (en) * | 2008-10-22 | 2009-07-29 | 深圳市中电开拓实业有限公司 | Focusing apparatus |
| CN102483209A (en) * | 2009-09-04 | 2012-05-30 | 斯坦雷电气株式会社 | Vehicle lamp fitting |
| CN102042520A (en) * | 2009-10-20 | 2011-05-04 | 鸿富锦精密工业（深圳）有限公司 | Light source module |
| CN201973496U (en) * | 2010-12-30 | 2011-09-14 | 无锡来德电子有限公司 | LED (Light Emitting Diode) lighting lamp |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150527 |