CN1766410A

CN1766410A - A mechanical dimmer for a luminaire

Info

Publication number: CN1766410A
Application number: CNA2005101283140A
Authority: CN
Inventors: 理查德·布莱克
Original assignee: Spearmark International Ltd
Current assignee: Spearmark International Ltd
Priority date: 2004-10-11
Filing date: 2005-10-11
Publication date: 2006-05-03
Also published as: GB2418979A; GB0425182D0; GB2418979B

Abstract

The present invention relates to a mechanically dimmable luminaire (1). The luminaire (1) comprises a filter (19) through which light from a light source (11) passes. In use, the filter (19) is movable relative to the light source (11), such that the amount of light from the light source (11) that is filtered by the filter (19) can be adjusted, in order to increase or decrease the brightness of the luminaire (1).

Description

The mechanical dimmer that is used for luminaire

Technical field

The present invention relates to a kind of mechanical device that is used to reduce lamp brilliance.The invention particularly relates to a kind of device that is used to reduce the lamp brilliance that adopts the compact fluorescent tube.

Background technology

At night, have powerful connections in the room of the being everlasting environment of light of children could be fallen asleep down.The invention provides a kind of children's of placing bedside and also brightness can be turned down to the luminaire of the level that requires.

Because the compact fluorescent tube has low energy consumption and low thermal output, therefore a lot of luminaires all adopt the compact fluorescent tube.The compact fluorescent tube can not be turned down brightness in the mode identical with incandescent lamp.Therefore need a kind of alternative method to reduce the appreciable light output of compact fluorescent tube.

Summary of the invention

Therefore, but the invention provides a kind of luminaire of mechanical light modulation, comprising: filter, fluorescence light source and be used between filter and fluorescence light source, providing the drive unit of relative motion.

Preferably, filter is movably with respect to fixed light source.Perhaps, light source is movably with respect to fixing filter.

Preferably, drive unit can comprise a device, and by means of this device, the rotation of driver can cause the linearity of filter to move.Perhaps, the linearity by driver moves the linearity that realizes filter and moves.In an alternate embodiment of the present invention, filter can be configured to rotate, so that light source deepening or part deepening.For example, filter can be divided into two or more parts, and when relative to each other rotating, these parts allow the light of varying level to pass.

Preferably, drive unit also can be included in the device that guides filter during the filter linearity moves.Perhaps, guider can guide filter during filter rotates.

Preferably, filter is a tubulose.More preferably, filter is open-ended cylindrical shape.Filter is preferably translucent, and can have tone, so that the color of the light that sends from luminaire when filter is mobile on light source changes.Perhaps, filter can be provided with pattern, so that pattern is visible by luminaire or is cast out by luminaire when filter moves through light source.In another embodiment, filter can be opaque.

Preferably, luminaire can have at least one opaque surface, and this opaque surface comprises at least one translucent areas.Perhaps, luminaire can have two opaque surfaces, and each surface comprises at least one translucent areas.Yet, it is contemplated that luminaire also can not have any opaque.

According to second aspect present invention, a kind of mechanical dimmer is provided, comprise the driver that rotor is installed, rotor engages with the stator that filter is installed, thus in use moving of driver can cause the linearity of filter to move.

Preferably, driver is a rotary driver.

Preferably, at least one recess can be set, to engage with at least one projection on the installing plate at the rotary driver periphery.

Preferably, rotor can be provided with at least one screw thread.

Preferably, stator can be provided with rotor at least a portion of at least one screw thread of at least one screw thread complementation of being provided with.

According to a third aspect of the invention we, provide a kind of method of turning down the output of fluorescence light source light by at least a portion that covers pipe with filter changeably.

Description of drawings

But Fig. 1 is the front view of the luminaire of the present invention's mechanical light modulation, there is shown the opaque lid that is provided with a translucent areas that invests lampshade one side.

But Fig. 2 is the rearview of the luminaire of the present invention's mechanical light modulation, wherein has been shown in dotted line compact fluorescent tube, light fixture and has been positioned at the mechanical type light modulator of lampshade.

But Fig. 3 is the front view of the luminaire of the present invention's mechanical light modulation, and wherein the lampshade front portion is cut open so that compact fluorescent tube, light fixture and mechanical type light modulator to be shown.

But Fig. 4 is the top view of the luminaire of the present invention's mechanical light modulation, shows the mechanical type light modulator that is positioned at lampshade.

But Fig. 5 is the bottom view of the luminaire of the present invention's mechanical light modulation, shows the light fixture that is positioned at lampshade.

Fig. 6 is the decomposition diagram of mechanical dimmer of the present invention.

Fig. 7 is the top perspective view of mechanical dimmer of the present invention, wherein is in the filter that partly dips and is arranged on around the compact fluorescent tube.

Fig. 8 is the bottom perspective view of mechanical dimmer of the present invention, wherein is in the filter that dips fully and is arranged on around the compact fluorescent tube.

The specific embodiment

But Fig. 1 shows a preferred embodiment according to the luminaire of mechanical light modulation of the present invention.Luminaire 1 comprises the lampshade of being made by the translucent plastics of monolithic 3 (as shown in Figure 4 and Figure 5).Lampshade 3 is folded into the tubulose with circular cross section.In order to keep the circle of lampshade, every vertical edges of lampshade all is provided with a plurality of complementary elements, the complementary elements interlocking on the complementary elements on a limit and another limit.Can expect that lampshade 3 also can form multiple difformity, for example can have the square cross section shape.

Opaque lid 5 is installed in the front of lampshade 3.Opaque lid 5 is provided with clear area 6, to see through the light from the compact fluorescent tube.Be positioned on the pin 7 that is molded in installing plate 21 and the light fixture 9 (referring to Fig. 2) opaque lid 5 is installed on the lampshade 3 by being located at hole 8 in the lid 5.Preferably, four pins 7 are spaced apart equally spacedly round the circumference of installing plate 21 and light fixture 9.Light fixture 9 is arranged in the lampshade 3 and is equipped with compact fluorescent tube 11.What be arranged on lampshade 3 intraoral illumination devices 1 top is mechanical type light modulator 15.Light modulator 15 is installed on the lampshade 3 by means of the pin 7 that is located on the installing plate 21.

Light modulator 15 comprises filter 19, installing plate 21 and driving mechanism 23.Driving mechanism 23 comprises control wheel 25, engagement device 27, guide 29, rotor 31 and stator 33.

Filter 19 is open-ended cylindrical shape,, is the tubulose with circular cross section that is.

Engagement device 27 be connected on the control wheel 25 and its periphery have a plurality of recess (not shown) be located at installing plate 21 on projection 36 engage.Engagement device 27 passes the matrix of installing plate 21 and guide 29.Guide 29 is fixed in the downside of installing plate 21.After passing guide 29, engagement device 27 engages with the matrix of rotor 31.In case engage, rotor 31 and engagement device 27 rotate together.Rotor 31 is perpendicular to the matrix of guide 29 and be parallel to two gathering sills 35 that are located on the guide 29 and extend.Rotor 31 engages with the stator 33 with two otch 37,39, the shape of otch 37,39 and

screw thread

41,43 complementations that are located on the rotor 31.Otch 37 be located at rotor 31 on

screw thread

41,43 in one engage.Recess 39 with rotor 31 is set on

screw thread

41,43 in another engage.Stator 33 also is provided with two relative projections 45, to engage with gathering sill 35 and guide 29.Filter 19 is installed on the stator 33.

For relative installing plate 21 mobile filters 19, rotate control wheel 25.The engagement device 27 that is installed on the control wheel 25 also rotates thus, thereby causes that rotor 31 rotates.Along with the rotation of rotor 31,

screw thread

41,43 passes the otch 37,39 of stator 33, thereby causes that stator 33 moves relative to rotor 31 with the filter 19 that is mounted thereon.

The preferred embodiment of the present invention is constructed to: the 25 clockwise rotations of control wheel, can reduce filter 19, as shown in Figure 7 along the rotation of direction A; The rotations that control wheel 25 is counterclockwise can promote filter 19, as shown in Figure 8 along the rotation of direction B.But in order to reduce the perceived brightness of compact fluorescent tube 11, light modulator 15 is positioned with respect to light fixture 9, so that any part of compact fluorescent tube 11 can not contained by filter 19 when filter 19 is in lifting position, and whole compact fluorescent tube 11 is all covered when filter 19 is in lowered position.

Filter 19 is made by band look trnaslucent materials, passes the transmission of its light with minimizing.

Be appreciated that the improved night-light that the invention provides a kind of children of being used for bedroom.Those skilled in the art can make various corrections and change to the detail of this paper under the situation of the scope that does not break away from claim.

Claims

1. but the luminaire of a mechanical light modulation comprises: filter; Fluorescence light source; And be used to provide the drive unit that relatively moves between filter and the light source.

2. but the luminaire of mechanical light modulation as claimed in claim 1, wherein filter is movably with respect to fixing fluorescence light source.

But 3. the luminaire of mechanical light modulation as claimed in claim 1 or 2, wherein drive unit comprises a device, by means of this device, the rotation of driver causes the linearity of filter to move.

4. but as the luminaire of each described mechanical light modulation in the claim 1,2 or 3, wherein, drive unit also comprises the device that is used for guiding filter during the filter linearity moves.

5. but as the luminaire of the described mechanical light modulation of above-mentioned arbitrary claim, wherein filter is a tubulose.

6. but as the luminaire of the described mechanical light modulation of above-mentioned arbitrary claim, wherein luminaire has at least one opaque side, and this opaque side comprises at least one translucent areas.

7. but as the luminaire of the described mechanical light modulation of above-mentioned arbitrary claim, comprise mechanical dimmer, this mechanical dimmer comprises the driver that rotor is installed, and rotor engages with the stator that filter is installed, thereby in use the mobile linearity of filter that causes of driver moves.

8. but as the luminaire of the described mechanical light modulation of above-mentioned arbitrary claim, wherein driver is a rotary driver.

9. but as the luminaire of the described mechanical light modulation of above-mentioned arbitrary claim, wherein the periphery of rotary driver is provided with at least one recess, to engage with at least one projection on the installing plate.

10. but as the luminaire of the described mechanical light modulation of above-mentioned arbitrary claim, its rotor is provided with at least one screw thread.

But 11. as the luminaire of the described mechanical light modulation of above-mentioned arbitrary claim, wherein stator is provided with at least a portion with at least one screw thread of epitrochanterian at least one screw thread complementation.

12. method that reduces the output of fluorescence light source light by at least a portion that covers light source with filter changeably.

13. but luminaire that roughly reaches as mentioned before with reference to the mechanical light modulation of accompanying drawing.

14. method of light output that is used for reducing changeably fluorescence light source that roughly reaches as mentioned before with reference to accompanying drawing.