CN101749560A

CN101749560A - Lighting system

Info

Publication number: CN101749560A
Application number: CN200810186725A
Authority: CN
Inventors: 姜雅惠; 萧正达; 胡鸿烈; 杜冠洁
Original assignee: Industrial Technology Research Institute ITRI
Current assignee: Industrial Technology Research Institute ITRI
Priority date: 2008-12-12
Filing date: 2008-12-12
Publication date: 2010-06-23
Anticipated expiration: 2028-12-12
Also published as: CN101749560B

Abstract

The invention discloses a lighting system, which includes at least one lighting module and a mechanism; the lighting module includes a light source, a first reflector and a second reflector. The first reflector includes a first reflection surface and the second reflector includes a second reflection surface. The light source generates a direct beam; the direct beam after being reflected by the first reflection surface generates a first reflection beam; the first reflection beam after being reflected by the second reflection surface generates a second reflection beam; the direct beam then is directly lighted on the second reflector to generate a third reflection beam; the second reflection beam and the third reflection beam generate a projection mode; the mechanism can move the second reflector or move the light source, thereby adjusting the relative positions of the second reflector and the light source so as to change the projection mode.

Description

Illuminator

Technical field

The present invention relates to a kind of illuminator, particularly relate to a kind of have reflector and the relatively-movable illuminator of light source.

Background technology

The optical design of general high optically focused light source can be arranged in pairs or groups secondary lens or a righting reflex cover and reach needed smooth shape or projection state, but lens can't change light shape under the situation that does not influence light extraction efficiency, and the righting reflex cover has the optic angle degree that light can't converge on 10 to 45 degree, therefore can't be used for special purposes such as medical treatment.

U.S. Pat 4037036 discloses a kind of optical design, is the design that proposes at conventional light source, and mainly to filter UV/IR light, the reflector of process all needs the function of filtering UV/IR light.

The design of U.S. Pat 5951139 for being proposed at the traditional operation lamp.It is configured to the combination of light source and a reflector and a mirror, after the reflection of light via reflector, produces light shape again via flat mirror reflects, and level crossing is circumferential arrangement with respect to the center of device.

U.S. Pat 2006/0072313 is the design at light emitting diode, comprises a light source and a reflection object, and this reflection object can be lens or a hollow reflector.

Summary of the invention

The present invention provides a kind of illuminator in order to change the projection form.

The object of the present invention is achieved like this, promptly provides an a kind of embodiment of illuminator to comprise an at least one lighting module and a mechanism, and lighting module comprises a light source, one first reflector and one second reflector.First reflector comprises one first reflecting surface, and second reflector comprises one second reflecting surface.This light source produces a direct beam, this direct beam produces first folded light beam via first reflecting surface reflection back, first folded light beam produces second folded light beam by second reflecting surface reflection back, this direct beam then direct irradiation produces one the 3rd folded light beam to this second reflector, this second folded light beam and the 3rd folded light beam produce a projection mode, this mechanism can adjust the relative position of second reflector and light source, to change the projection form.

The present invention also provides a kind of operating lamp, comprising: a plurality of lighting modules, and each lighting module comprises: a light source, in order to produce a direct beam; One first reflector, wherein, this light source is positioned among this first reflector, and this first reflector comprises that further one first reflecting surface is in order to accept this direct beam and to reflect to form one first folded light beam; One second reflector comprises one second reflecting surface, in order to reflect this direct beam and this first folded light beam, forms one second folded light beam and one the 3rd folded light beam respectively, and combines generation one projection form with the 3rd folded light beam by this second folded light beam; And a mechanism, in order to adjust the relative position of this second reflector and this light source, to change this projection form.

For the present invention can be become apparent, embodiment cited below particularly, and cooperate appended accompanying drawing, be described in detail below:

Description of drawings

Fig. 1 is the stereogram of an embodiment of illuminator of the present invention;

Fig. 2 is the side view of an embodiment of illuminator of the present invention;

Fig. 3 is the schematic diagram of an embodiment of lighting module of the present invention;

Fig. 4 is the side view of another embodiment of the present invention;

Fig. 5 is the side view of another embodiment of the present invention;

Fig. 6 is the application schematic diagram of an embodiment of illuminator of the present invention.

The main element symbol description

5～sidewall

7～wall

10～the first reflectors

12～the first reflectings surface

20～the second reflectors

22～the second reflectings surface

30～mechanism

32～urceolus

34～inner core

36～push rod

342～protruded stigma

322～long and narrow outer channel

322a, 322b～two-end-point

324～groove

344～protruded stigma

60～lighting module

90～light source

100～illuminator

A～first reflection ray

B～second reflection ray

C～the 3rd reflection ray

L～central shaft

L '～central shaft

L2～central shaft extension

L3～inferior pedestal

The specific embodiment

Illuminator of the present invention as shown in Figure 1 and Figure 2, Fig. 1 is the stereogram of an embodiment of illuminator of the present invention, Fig. 2 is the side view of Fig. 1.

As shown in Figure 1, the illuminator 100 of one embodiment of the invention comprises a plurality of lighting modules 60 and a mechanism 30, and with reference to Fig. 2 and Fig. 3, each lighting module 60 comprises one first reflector 10, one second reflector 20 and a light source 90.

Light source 90 is arranged in first reflector 10, as shown in Figure 3, first reflector 10 comprises one first reflecting surface 12, second reflector 20 comprises one second reflecting surface 22, the light that light source 90 sends has two kinds of situations, one of them is the back first reflection ray A that forms of first reflecting surface, 12 reflections by first reflector 10, the first reflection ray A forms the second reflection ray B by second reflecting surface, the 22 reflection backs of second reflector 20, another kind of situation is second reflecting surface 22 of direct irradiation to the second reflector 20, and produce one the 3rd reflection ray C, form desirable projection form or light shape by the second reflection ray B and the 3rd reflection ray C.

Wherein, first reflecting surface 12 of first reflector 10 or second reflecting surface 22 of second reflector 20 can be a curved surface, particularly can be an ellipsoid or parabola, and light source 90 can place paraboloidal focus.

Get back to Fig. 1, a plurality of second reflectors 20 of the present invention can be integrally formed or individualism and combination with one another, and structure is not limited to shape among the figure, and size thickness shape can be done change according to overall structure.

Get back to Fig. 2, mechanism 30 can make second reflector 20 near or move away from light source 90 ground, and change projection form or light shape, below the structure of explanation mechanism 30.

Mechanism 30 comprises a central axis L, the extension L2 of this central shaft, one urceolus 32, one inner core 34 and a push rod 36, light source 90 is incorporated into the extension L2 of central shaft together with first reflector 10, urceolus 32 is socketed on the outer surface of inner core 34, and can on this outer surface, be free to slide, push rod 36 is connected in inner core 34, inner core 34 can be around this central axis L rotation, on the outer surface of inner core 34, be provided with one or more protruded stigmas 342, periphery at urceolus 32 then is provided with one or more long and narrow (elongated) shape outer channel 322, long and narrow outer channel 322 has two-end-

point

322a and 322b in long and narrow portion, this two-end-point is not contour, protruded stigma 342 is embedded in the outer channel 322, and can relatively move at two-end-

point

322a and 322b along outer channel 322.So, when push rod 36 is pushed, inner core 34 rotates around the central axis L axle center, protruded stigma 342 also rotates and relatively moves in outer channel 322 generations, two side 5 restriction urceolus 32 move with respect to the vertical of central axis L axle center, make urceolus 32 to move horizontally with respect to the central axis L axle center, because second reflector 20 is to be connected on the urceolus 32, when urceolus 32 moves, second reflector 20 is also along with moving, second reflector 20 like this can near or away from first reflector 10 and light source 90, and change projection form or light shape.Long and narrow outer channel 322 also can be spiral grooves; And push rod 36 can be integrally formed with inner core 34.

Only do to rotate the rotation of moving and limiting push rod 36 in order to ensure inner core 34 with respect to the axle center of central axis L, periphery in central axis L is provided with plural protruded stigma 344, and groove 324 is set in addition on inner core 34, protruded stigma 344 is embedded in the groove 324, and can in groove 324, relatively move, when push rod 36 turned to the edge that is connected to groove 324, push rod 36 was limited and inner core 34 is stopped operating.

Though be to move second reflector 20 and the distance that changes second reflector 20 and light source 90 in the foregoing description, also can mobile light source 90 and change the distance of second reflector 20 and light source 90.

Fig. 4 is the schematic diagram of another embodiment of illuminator of the present invention, as shown in Figure 4, second reflector 20 is fixed on the wall 7, light source 90 then is to be fixed on pedestal L3 together with first reflector 10, inferior pedestal L3 is incorporated into urceolus 32, thus when urceolus 32 moves, light source 90 can move up and down and near or away from second reflector 20, can change light shape thus.

Fig. 5 is the schematic diagram of another embodiment of illuminator of the present invention, as shown in Figure 5, present embodiment is compared with the above embodiments, do not possess urceolus 32, on inner core 34, be provided with a vertically extending groove 324 ', be located at central axis L ' protruded stigma of periphery 344 is because the restriction of groove 324 ', and restriction inner core 34 is with respect to central axis L ' axle center moves as horizontal direction, inferior pedestal L3 is incorporated into inner core 34, in this embodiment, push rod 36 is incorporated into inner core 34, therefore move up and down by push rod 36 and drive moving of inner core 34,, time related generation of pedestal L3 is moved because of inner core 34 moves because time pedestal L3 is engaged on the inner core 34, and then the light source 90 that is incorporated on time pedestal L3 is relatively moved with respect to 20 generations of second reflector together with first reflector 10, and change light shape.

Embodiments of the invention propose a kind of new design for the illuminator of medical treatment, with two reflectors light source of arranging in pairs or groups, and the moving of the reflector by wherein and light source relative position, and change light shape or projection form, reach the effect of no shadow or anti-dazzle.As shown in Figure 6, can constitute the design of an illuminator by six lighting modules, and in the field of dental operating light, can make up the lighting module more than four.In the application of general operating lamp, the lighting module more than 20 capable of being combined, and form the optically focused form of a no shadow and free from glare.

In addition, for the heat that makes light source 90 is able to dissipation, can heat abstractor 346 be set in the top of central shaft (L or L '), heat abstractor 346 can be one-body molded with central shaft (L or L ').

Though disclosed the present invention in conjunction with above embodiment; yet it is not in order to limiting the present invention, anyly is familiar with this operator, without departing from the spirit and scope of the present invention; can do a little change and retouching, thus protection scope of the present invention should with enclose claim was defined is as the criterion.

Claims

1. illuminator comprises:

At least one lighting module, it comprises:

Light source is in order to produce a direct beam;

First reflector, wherein, this light source is positioned among this first reflector, and this first reflector comprises further that also one first reflecting surface is in order to accept this direct beam and to reflect to form one first folded light beam;

Second reflector comprises one second reflecting surface, in order to reflect this direct beam and this first folded light beam, forms one second folded light beam and one the 3rd folded light beam respectively, and combines generation one projection form with the 3rd folded light beam by this second folded light beam; And

Mechanism is in order to adjust the relative position of this second reflector and this light source, to change this projection form.

2. illuminator as claimed in claim 1, wherein this light source is a light emitting diode.

3. illuminator as claimed in claim 1, wherein this second reflecting surface is parabola or ellipsoid.

4. illuminator as claimed in claim 3, wherein this light source is located at this paraboloidal focus.

5. illuminator as claimed in claim 1, wherein this first reflecting surface is a curved surface.

6. illuminator as claimed in claim 1, wherein this mechanism comprises:

Pedestal, this pedestal comprise a central shaft and a central shaft extension, and this light source and this first reflector are located at this central shaft extension;

Inner core, this central shaft of socket;

Urceolus, this inner core of socket, this second reflector is formed at this urceolus; And

Push rod is formed at this inner core, promote this push rod and make the rotation of this inner core drive this urceolus to move, and this second reflector is moved and near or away from this light source.

7. illuminator as claimed in claim 6, wherein this urceolus is fixed by the sidewall of this pedestal and does not rotate.

8. illuminator as claimed in claim 7, wherein this urceolus has the outer channel of at least one thin-and-long, and this thin-and-long outer channel has two-end-point, and this two-end-point is not contour.

9. illuminator as claimed in claim 6, wherein this inner core has at least one protruded stigma, is incorporated into this outer channel, when this inner core rotated, this protruded stigma moved along this thin-and-long outer channel, drives this urceolus and moves, make this second reflector near or away from this light source.

10. illuminator as claimed in claim 7, wherein this urceolus has a spiral outer channel.

11. illuminator as claimed in claim 6, it also comprises a radiating module, is incorporated into this axis body.

12. illuminator as claimed in claim 11, wherein, this radiating module and this axis body are one-body molded.

13. illuminator as claimed in claim 1, wherein this mechanism moves this second reflector and adjusts the relative position of this second reflector and this light source, to change this projection form.

14. illuminator as claimed in claim 1, wherein this mechanism moves this light source and adjusts the relative position of this second reflector and this light source, to change this projection form.

15. illuminator as claimed in claim 1, wherein this mechanism comprises:

Pedestal comprises a central shaft and a wall, on this wall and be provided with this second reflector;

Inner core, this central shaft of socket;

Urceolus, this inner core of socket;

Inferior pedestal is mounted on this urceolus, on this time pedestal and be provided with this light source and this first reflector; And

Push rod is incorporated into this inner core, promotes this push rod and makes the rotation of this inner core, move and drive this urceolus, and make light source on this time pedestal move and near or away from this second reflector.

16. illuminator as claimed in claim 1, wherein this mechanism comprises:

Inner core, this central shaft of socket;

Inferior pedestal is mounted on this inner core, on this time pedestal and be provided with this light source and this first reflector; And

Push rod in conjunction with this inner core, promotes this push rod and makes this inner core move and then drive time pedestal, this light source is moved and near or away from this second reflector, to change light shape.

17. illuminator as claimed in claim 16, wherein this inner core has a groove, and this central shaft has a protruded stigma, is embedded in this groove movably, when this push rod of promotion moves this inner core, limits moving of this time pedestal by this groove.

18. an operating lamp comprises:

A plurality of lighting modules, each lighting module comprises:

Light source is in order to produce a direct beam;

19. operating lamp as claimed in claim 18, wherein this light source is a light emitting diode.

20. operating lamp as claimed in claim 18, wherein this second reflecting surface is parabola or ellipsoid.

21. operating lamp as claimed in claim 20, wherein this light source is located at this paraboloidal focus.

22. operating lamp as claimed in claim 18, wherein this first reflecting surface is a curved surface.

23. operating lamp as claimed in claim 18, wherein this mechanism comprises:

Inner core, this central shaft of socket;

Push rod is formed at this inner core, promotes this push rod and makes the rotation of this inner core, move and drive this urceolus, and this second reflector is moved and near or away from this light source.

24. operating lamp as claimed in claim 23, wherein this urceolus has at least one spiral outer channel, and this inner core has at least one protruded stigma, be incorporated into this outer channel, when this inner core rotates, drive this urceolus and move, make this second reflector near or away from this light source.

25. operating lamp as claimed in claim 23 wherein also comprises a radiating module, is incorporated into this central shaft.

26. operating lamp as claimed in claim 25, wherein this radiating module and this central shaft are integrally formed.

27. operating lamp as claimed in claim 18, wherein this mechanism comprises:

Inner core, this central shaft of socket;

Urceolus, this inner core of socket;

Push rod is incorporated into this inner core, promotes this push rod and makes the rotation of this inner core, move and drive this urceolus, and this light source is moved and near or away from this second reflector.

28. operating lamp as claimed in claim 18, wherein this mechanism comprises:

Inner core, this central shaft of socket;

29. operating lamp as claimed in claim 28, wherein this inner core has a groove, and this central shaft has a protruded stigma, is embedded in this groove movably, when this push rod of promotion moves this inner core, limits moving of this central shaft by this groove.