CN103292257A - Focusing mechanism of LED shadowless lamp - Google Patents
Focusing mechanism of LED shadowless lamp Download PDFInfo
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- CN103292257A CN103292257A CN2013102267012A CN201310226701A CN103292257A CN 103292257 A CN103292257 A CN 103292257A CN 2013102267012 A CN2013102267012 A CN 2013102267012A CN 201310226701 A CN201310226701 A CN 201310226701A CN 103292257 A CN103292257 A CN 103292257A
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- lamp
- adjusting mechanism
- focus adjusting
- screw mandrel
- focusing mechanism
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Abstract
The invention relates to the field of focusing technique, in particular to a focusing mechanism of an LED shadowless lamp. The focusing mechanism comprises a screw rod provided with a lamp cover and a lamp support, wherein the lamp cover is arranged below the lamp support, and the screw rod is provided with a focusing mechanism body used for regulating lamp holders. The lamp support comprises a movable sleeve and the lamp holders which are symmetrically arranged at the two ends of the movable sleeve, and the lamp holders are movably connected with the movable sleeve through rotary shafts. The focusing mechanism body comprises a nut and a fixing block, wherein the nut is arranged on the screw rod, the fixing block is fixed on the end portion of the screw rod, and the fixing block is connected with the lamp holders through telescopic supports. The focusing mechanism of the LED shadowless lamp has the advantages of being high in accuracy, low in cost, simple in structure, reasonable in design and the like.
Description
Technical field
The present invention relates to the technical field of focusing, particularly a kind of focus adjusting mechanism of LED shadowless lamp.
Background technology
LED (Light Emitting Diode), light emitting diode is a kind of solid-state semiconductor devices, it can directly be converted into light to electricity.LED is encapsulated in the epoxy resin the inside completely, and it is all firmer than bulb and fluorescent tube.Do not have loosening part in its lamp body, make LED have non-damageable advantage.
The focusing or cry focusing, focusing---refer to change image distance v, just change the camera lens photocentre distance of plate plane on earth.To obtain the adjustment process of this object sharply defined image.We know the principle of lens imaging, as the screen on (egative film of camera or photo-sensitive cell) position is the most clearly always arranged, this is the position that light converges, numerous point has constituted a plane, just is called the focal plane here.(focusing just changes the front and back position of focus! )
The shadowless lamp of hospital's use at present mostly is halogen tungsten lamp as light source, but halogen tungsten lamp belongs to hot light modulation, and shadowless lamp needs optically focused, for the heat of eliminating hot light also needs to add one deck shade.And the power consumption of common shadowless lamp is big, and little light Jiao is shallow for the optically focused spot diameter, and bulb service life is short.And the LED lamp belongs to cold light source, energy-saving effect is remarkable, and very suitable use is on shadowless lamp, and to adopt this light emitting diode be that the LED lamp is as light source to some operation shadowless lamps at present, multi-group light-emitting diode is combined on the lamp socket, by increasing the light requirement that quantity of light source reaches shadowless lamp.The focus adjusting mechanism of present LED shadowless lamp, comprise discoidal shadowless lamp frame, the center of lamp bracket is provided with the focusing drive unit, lamp bracket is provided with the LED lamp socket, several lamp sockets ringwise distribute around the focusing drive unit, one end of lamp socket and the outer rim of lamp bracket are hinged, and other end activity is overlapped on the focusing drive unit; The movable end of lamp socket is provided with preloading spring and the lamp bracket focusing drive unit that is connected and comprises the adjusting leading screw that is fixed on the lamp bracket center, and an end of leading screw is provided with motor, and leading screw matches with shaft of motor and is connected; Described leading screw is provided with the traveling nut that matches with it; Described nut is fixedly connected with the connection pressing plate, and the movable end that connects pressing plate and lamp socket overlaps.
The focus adjusting mechanism of the LED shadowless lamp of this structure, complex structure, the cost height is not easy to promote the use of.
Summary of the invention
The objective of the invention is to defective and deficiency at prior art, the focus adjusting mechanism of LED shadowless lamp a kind of simple in structure, reasonable in design, easy to use is provided.
To achieve these goals, the present invention realizes by the following technical solutions: a kind of focus adjusting mechanism of LED shadowless lamp, comprise screw mandrel, and screw mandrel is provided with lampshade and lamp bracket, lampshade is below lamp bracket, and described screw mandrel is provided with for the focus adjusting mechanism of regulating lamp bracket.
As preferably, described lamp bracket comprises kink and is symmetricly set on the lamp socket at kink two ends, flexibly connects by turning cylinder between lamp socket and the kink.
As preferably, described focus adjusting mechanism comprises the nut that is arranged on the screw mandrel and is fixed on the fixed block of screw mandrel end, is connected by telescope support between fixed block and the lamp socket.
As preferably, described lampshade is glassware.
After adopting said structure, beneficial effect of the present invention is: the focus adjusting mechanism of a kind of LED shadowless lamp of the present invention, comprise screw mandrel, and screw mandrel is provided with lampshade and lamp bracket, and lampshade is below lamp socket, and described screw mandrel is provided with for the focus adjusting mechanism of regulating lamp socket.When use is of the present invention, the focus adjusting mechanism of the LED shadowless lamp after the use, the accuracy height, and also cost is low, simple in structure, reasonable in design, etc. advantage.
Description of drawings
Describe the present invention in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is structural representation of the present invention.
Reference numeral is:
1 is screw mandrel 1; 2 is lampshade; 3 is lamp bracket; 4 is nut; 5 is fixed block; 6 is telescope support.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with the specific embodiment, further set forth the present invention.
With reference to shown in Figure 1, the focus adjusting mechanism of a kind of LED shadowless lamp of the present invention comprises screw mandrel 1, and screw mandrel 1 is provided with lampshade 2 and lamp bracket 3, and lampshade 2 is below lamp bracket 3, and described screw mandrel 1 is provided with for the focus adjusting mechanism of regulating lamp bracket.
As a kind of optimal way of the present invention, described lamp bracket 3 comprises kink 3-1 and is symmetricly set on the lamp socket 3-2 at kink 3-1 two ends, flexibly connects by turning cylinder 3-3 between lamp socket 3-2 and the kink 3-1.
As a kind of optimal way of the present invention, described focus adjusting mechanism comprises the nut that is arranged on the screw mandrel 14 and is fixed on the fixed block 5 of screw mandrel 1 end, is connected by telescope support 6 between fixed block 5 and the lamp socket 3-2.
As a kind of optimal way of the present invention, described lampshade 2 is glassware.
This concrete enforcement, adopt nut that kink is adjusted to specified altitude assignment at first earlier, regulate the angle of lamp socket by regulating telescope support then, make and reach certain focal length between two lamp sockets, the focus adjusting mechanism of the LED shadowless lamp after use, the accuracy height, and also cost is low, simple in structure, reasonable in design, etc. advantage.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (4)
1. the focus adjusting mechanism of a LED shadowless lamp is characterized in that, comprises screw mandrel (1), and screw mandrel (1) is provided with lampshade (2) and lamp bracket (3), and lampshade (2) is below lamp bracket (3), and described screw mandrel (1) is provided with for the focus adjusting mechanism of regulating lamp bracket.
2. the focus adjusting mechanism of LED shadowless lamp according to claim 1, it is characterized in that, described lamp bracket (3) comprises kink (3-1) and is symmetricly set on the lamp socket (3-2) at kink (3-1) two ends, flexibly connects by turning cylinder (3-3) between lamp socket (3-2) and the kink (3-1).
3. the focus adjusting mechanism of LED shadowless lamp according to claim 1, it is characterized in that, described focus adjusting mechanism comprises the nut (4) that is arranged on the screw mandrel (1) and is fixed on the fixed block (5) of screw mandrel (1) end, is connected by telescope support (6) between fixed block (5) and the lamp socket (3-2).
4. the focus adjusting mechanism of LED shadowless lamp according to claim 1 is characterized in that, described lampshade (2) is glassware.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102267012A CN103292257A (en) | 2013-06-08 | 2013-06-08 | Focusing mechanism of LED shadowless lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102267012A CN103292257A (en) | 2013-06-08 | 2013-06-08 | Focusing mechanism of LED shadowless lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103292257A true CN103292257A (en) | 2013-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102267012A Pending CN103292257A (en) | 2013-06-08 | 2013-06-08 | Focusing mechanism of LED shadowless lamp |
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| CN (1) | CN103292257A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763922A (en) * | 2015-03-02 | 2015-07-08 | 上海卫远医疗器械有限公司 | LED operation shadowless lamp |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2893402Y (en) * | 2006-05-08 | 2007-04-25 | 孔悦 | Light-emitting diode operation shadowless lamp |
| CN202074424U (en) * | 2011-03-29 | 2011-12-14 | 广州市雅江光电设备有限公司 | Led lamp base plate angle adjusting mechanism |
| CN202419499U (en) * | 2012-01-17 | 2012-09-05 | 山东育达医疗设备有限公司 | Focusing mechanism of LED shadowless lamp |
-
2013
- 2013-06-08 CN CN2013102267012A patent/CN103292257A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2893402Y (en) * | 2006-05-08 | 2007-04-25 | 孔悦 | Light-emitting diode operation shadowless lamp |
| CN202074424U (en) * | 2011-03-29 | 2011-12-14 | 广州市雅江光电设备有限公司 | Led lamp base plate angle adjusting mechanism |
| CN202419499U (en) * | 2012-01-17 | 2012-09-05 | 山东育达医疗设备有限公司 | Focusing mechanism of LED shadowless lamp |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104763922A (en) * | 2015-03-02 | 2015-07-08 | 上海卫远医疗器械有限公司 | LED operation shadowless lamp |
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Application publication date: 20130911 |