CN201526829U - Shadowless lamp - Google Patents
Shadowless lamp Download PDFInfo
- Publication number
- CN201526829U CN201526829U CN2009201793679U CN200920179367U CN201526829U CN 201526829 U CN201526829 U CN 201526829U CN 2009201793679 U CN2009201793679 U CN 2009201793679U CN 200920179367 U CN200920179367 U CN 200920179367U CN 201526829 U CN201526829 U CN 201526829U
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- rod
- adjusting screw
- emitting diodes
- lens module
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Abstract
The utility model provides a shadowless lamp, which comprises a housing, a light board, a condenser lens module, a translucent plate, a transparent plate and a focusing mechanism, wherein a parallel offset is arranged between the optic axis of every Fresnel lens on the condenser lens module and the corresponding optic axis of high power LED on the light board, and the focusing mechanism can drive the condenser lens module to move up and down so as to adjust the size of light spot. By adopting the Fresnel lens provided by the utility model, more rays issued by the high power LED can be assembled, so as to improve the illumination of the light spot; as the parallel offset of the optic axis of the high power LED and that of the lens is adopted to assemble the light spots, the manufacturing cost of the traditional condensation system can be greatly reduced; as the movement of the condenser lens module is adopted to focus, the size of the light spot can be adjusted under the condition that the projection light has no shadow.
Description
Technical field
The utility model relates to a kind of medical light fixture, relates in particular to a kind of shadowless lamp.
Background technology
The light emitting diode of high-power super brightness has that long working life, energy consumption are low, the characteristics of device environmental protection.Along with development of semiconductor, the light emitting diode of high-power super brightness enters to be commercially produced in recent years.As novel light-emitting component, high-power superhigh brightness LED is widely used, and will substitute traditional light source gradually in the near future.
Traditional light source shadowless lamp generally is made up of conventional bulb and concentrator.Conventional bulb places the focus of concentrator, and the light that conventional bulb is sent is converged by concentrator, projects illumination place and forms the no shadow hot spot that focuses on.
Conventional bulb certainly leads to heat when luminous, and contains infrared ray and ultraviolet ray at the light that sends.Can produce harmful effect to personnel.
The utility model content
The purpose of this utility model exactly in order to address the above problem, provides a kind of shadowless lamp that weakens hatching effect and can not produce harmful light radiation that has.
In order to achieve the above object, the utility model has adopted following technical scheme: a kind of shadowless lamp, and it comprises:
Housing is columnar structured;
Lamp plate is fixedly connected on the upper end of housing, comprises aluminium base and a plurality of large-power light-emitting diodes, and a plurality of large-power light-emitting diodes evenly are mounted on the aluminium base at interval;
The collector lens module, the middle part that is movably arranged in the housing can move up and down, comprise installing plate and a plurality of Fresnel Lenses, a plurality of Fresnel Lenses evenly at interval be installed on the installing plate and with the corresponding one by one setting of a plurality of large-power light-emitting diodes, be provided with a parallel offset amount Δ h between the optical axis of each Fresnel Lenses and the optical axis of corresponding large-power light-emitting diodes, form in focal spot with the projected spot that guarantees each large-power light-emitting diodes and have the overlapping hot spot that weakens shade;
Light-passing board is fixedly connected on the lower end of housing, and light-passing board is provided with a plurality of loopholes corresponding to a plurality of Fresnel Lenses;
Transparent panel is arranged on the below of light-passing board and fits with light-passing board and links to each other;
Focus adjusting mechanism comprises thread bush, adjusting screw(rod) seat, adjusting screw(rod), a plurality of guide pin bushing, a plurality of guide pillar and a plurality of spring; Thread bush wears the center that is installed in the collector lens module; The adjusting screw(rod) seat corresponding to thread bush be connected transparent panel below; Adjusting screw(rod) passes adjusting screw(rod) seat, transparent panel and light-passing board from the bottom up and is threaded with thread bush; A plurality of guide pin bushings are located in the diverse location of collector lens module respectively; A plurality of guide pillars slide over respectively in each guide pin bushing, and its upper end is fixedly linked with aluminium base, and lower end and transparent panel are fixedly linked; A plurality of springs are set on the top of each guide pillar respectively, and its upper end is pressed on the aluminium base, and the lower end is pressed on the corresponding guide pin bushing.
Be provided with a die cavity in the described adjusting screw(rod) seat, described adjusting screw(rod) middle part is provided with a bulge loop, and the bulge loop of adjusting screw(rod) slides in the die cavity of adjusting screw(rod) seat and can rotate.
The optical axis of described each Fresnel Lenses is 0～3mm with parallel offset amount Δ h between the optical axis of corresponding large-power light-emitting diodes.
Described lamp plate is 1.1 meters to the distance of described overlapping hot spot.
Angle≤10 of described each light emitting diode optical axis and overlapping spot center vertical line °
The utility model shadowless lamp makes it compared with prior art owing to adopted above technical scheme, have following advantage and and characteristics:
1, owing to adopted Fresnel Lenses, can converge the light that more sends, improve the illumination of hot spot by high-power superhigh brightness LED.
2, because lamp plate has been used surface mounting technology, improve the manufacture craft level, improved the positioning accuracy of large-power light-emitting diodes, greatly reduced the installation cost of light emitting diode.
3, owing to adopted the method that the parallel trace skew with the optical axis of lens of the optical axis of large-power light-emitting diodes is made its hot spot polymerization, greatly reduce the cost of manufacture of traditional condenser system.
4, owing to adopted lens module move mode to focus, its spot size can under having shadow stripe spare, not regulated projection light.
Description of drawings
Fig. 1 is the structural representation of the utility model shadowless lamp;
Fig. 2 is the structural representation of the lens module in the utility model;
Fig. 3 is focus adjusting mechanism and the operation principle schematic diagram in the utility model.
The specific embodiment
Referring to Fig. 1, shadowless lamp of the present utility model comprises housing 1, lamp plate 2, collector lens module 3, light-passing board 4, transparent panel 5 and focus adjusting mechanism 6.
Lamp plate 2 is fixedly connected on the upper end of housing, comprises aluminium base 21 and a plurality of (about 100) large-power light-emitting diodes 22, and a plurality of large-power light-emitting diodes evenly are mounted on the aluminium base at interval, forms the lamp source of shadowless lamp.
Cooperation is referring to Fig. 2, the middle part that collector lens module 3 in the utility model is movably arranged in the housing 1 can move up and down, comprise installing plate 31 and a plurality of Fresnel Lenses 32, a plurality of Fresnel Lenses 32 evenly be installed at interval on the installing plate 31 and with the corresponding one by one setting of a plurality of large-power light-emitting diodes 22, be provided with the parallel offset amount of 0～3mm between the optical axis of each Fresnel Lenses and the optical axis of corresponding large-power light-emitting diodes, form in focal spot with the projected spot that guarantees each large-power light-emitting diodes and have the overlapping hot spot that weakens shade.Installing plate 31 is made of train wheel bridge 311, lower plate 312 and intermediate pads 313.
Light-passing board 4 is fixedly connected on the lower end of housing 1, and light-passing board 4 is provided with a plurality of loopholes 41 corresponding to a plurality of Fresnel Lenses.
Cooperation is referring to Fig. 3, and the focus adjusting mechanism 6 in the utility model comprises thread bush 61, adjusting screw(rod) seat 62, adjusting screw(rod) 63, a plurality of guide pin bushing 64, a plurality of guide pillar 65 and a plurality of spring 66.Thread bush 61 wears the center that is installed in the collector lens module and uses nut 67 fixing; Adjusting screw(rod) seat 62 is connected the following of transparent panel 5 and fixing with hold-down screw 68 corresponding to thread bush; Adjusting screw(rod) 63 passes adjusting screw(rod) seat 62, transparent panel 5 and light-passing board 4 from the bottom up and is threaded with thread bush 61; Can drive collector lens module 3 by rotation adjusting screw(rod) 63 moves up and down.A plurality of guide pin bushings 64 are located in the diverse location of collector lens module respectively and fix with hold-down screw 69.A plurality of guide pillars 65 slide over respectively in each guide pin bushing 64, and its upper end is fixedly linked with aluminium base, and the lower end is fixedly linked by guide pillar nut 60 and transparent panel.A plurality of springs 66 are set on the top of each guide pillar 65 respectively, and its upper end is pressed on the aluminium base 21, and the lower end is pressed on the corresponding guide pin bushing 64.
Be provided with a die cavity 621 in adjusting screw(rod) seat 62, be provided with a bulge loop 631 at the middle part of adjusting screw(rod) 63, the bulge loop of adjusting screw(rod) slides in the die cavity of adjusting screw(rod) seat and can rotate.Adjust screw rod 63 by rotating, the rotation of sliding in the die cavity 621 of adjusting screw(rod) seat 62 of the bulge loop 631 of adjusting screw(rod) 63, the top screw drive thread bush 61 of adjusting screw rod 63 moves up and down to adjust the spot size of semiconductor light-emitting-diode shadowless lamp condenser lens module 3.
Lamp plate in the utility model is set to 1.1 meters to the distance of overlapping hot spot.Angle≤10 of each light emitting diode optical axis and overlapping spot center vertical line °.
Claims (5)
1. shadowless lamp is characterized in that comprising:
Housing is cirque structure spare;
Lamp plate is fixedly connected on the top of housing, comprises aluminium base and a plurality of large-power light-emitting diodes, and a plurality of large-power light-emitting diodes evenly are mounted on the aluminium base at interval;
The collector lens module, the middle part that is movably arranged in the housing can move up and down, comprise installing plate and a plurality of Fresnel Lenses, a plurality of Fresnel Lenses evenly at interval be installed on the installing plate and with the corresponding one by one setting of a plurality of large-power light-emitting diodes, be provided with a parallel offset amount Δ h between the optical axis of each Fresnel Lenses and the optical axis of corresponding large-power light-emitting diodes, form in focal spot with the projected spot that guarantees each large-power light-emitting diodes and have the overlapping hot spot that weakens shade;
Light-passing board is fixedly connected on lower part of frame, and light-passing board is provided with a plurality of loopholes corresponding to a plurality of Fresnel Lenses;
Transparent panel is arranged on the below of light-passing board and fits with light-passing board and links to each other;
Focus adjusting mechanism comprises thread bush, adjusting screw(rod) seat, adjusting screw(rod), a plurality of guide pin bushing, a plurality of guide pillar and a plurality of spring; Thread bush wears the center that is installed in the collector lens module; The adjusting screw(rod) seat corresponding to thread bush be connected transparent panel below; Adjusting screw(rod) passes adjusting screw(rod) seat, transparent panel and light-passing board from the bottom up and is threaded with thread bush; A plurality of guide pin bushings are located in the diverse location of collector lens module respectively; A plurality of guide pillars slide over respectively in each guide pin bushing, and its upper end is fixedly linked with aluminium base, and lower end and transparent panel are fixedly linked; A plurality of springs are set on the top of each guide pillar respectively, and its upper end is pressed on the aluminium base, and the lower end is pressed on the corresponding guide pin bushing.
2. shadowless lamp as claimed in claim 1 is characterized in that: be provided with a die cavity in the described adjusting screw(rod) seat, described adjusting screw(rod) middle part is provided with a bulge loop, and the bulge loop of adjusting screw(rod) slides in the die cavity of adjusting screw(rod) seat and can rotate.
3. shadowless lamp as claimed in claim 1 is characterized in that: the optical axis of described each Fresnel Lenses is 0～3mm with parallel offset amount Δ h between the optical axis of corresponding large-power light-emitting diodes.
4. shadowless lamp as claimed in claim 1 is characterized in that: described lamp plate is 1.1 meters to the distance of described overlapping hot spot.
5. shadowless lamp as claimed in claim 1 is characterized in that: angle≤10 of described each light emitting diode optical axis and overlapping spot center vertical line °
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201793679U CN201526829U (en) | 2009-10-24 | 2009-10-24 | Shadowless lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201793679U CN201526829U (en) | 2009-10-24 | 2009-10-24 | Shadowless lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201526829U true CN201526829U (en) | 2010-07-14 |
Family
ID=42518115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201793679U Expired - Fee Related CN201526829U (en) | 2009-10-24 | 2009-10-24 | Shadowless lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201526829U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102458016A (en) * | 2010-10-29 | 2012-05-16 | 南京迈瑞生物医疗电子有限公司 | Operating lamp as well as surgery field facula adjusting device and method of operating lamp |
| CN102727176A (en) * | 2011-04-11 | 2012-10-17 | 上海美沃精密仪器有限公司 | System and method of handhold slit lamp |
| CN103925553A (en) * | 2014-03-26 | 2014-07-16 | 北京莱斯达电子科技有限公司 | LED spot lamp |
| CN107062025A (en) * | 2017-03-24 | 2017-08-18 | 海星海事电气集团有限公司 | A kind of LED variable-angles alignment light emitting system |
| CN110296376A (en) * | 2019-07-12 | 2019-10-01 | 南通大学 | A method of adjusting LED shadowless lamp hot spot |
-
2009
- 2009-10-24 CN CN2009201793679U patent/CN201526829U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102458016A (en) * | 2010-10-29 | 2012-05-16 | 南京迈瑞生物医疗电子有限公司 | Operating lamp as well as surgery field facula adjusting device and method of operating lamp |
| CN102727176A (en) * | 2011-04-11 | 2012-10-17 | 上海美沃精密仪器有限公司 | System and method of handhold slit lamp |
| CN103925553A (en) * | 2014-03-26 | 2014-07-16 | 北京莱斯达电子科技有限公司 | LED spot lamp |
| CN107062025A (en) * | 2017-03-24 | 2017-08-18 | 海星海事电气集团有限公司 | A kind of LED variable-angles alignment light emitting system |
| CN110296376A (en) * | 2019-07-12 | 2019-10-01 | 南通大学 | A method of adjusting LED shadowless lamp hot spot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100714 Termination date: 20121024 |