CN102588873A

CN102588873A - Indoor lamp

Info

Publication number: CN102588873A
Application number: CN201210040273XA
Authority: CN
Inventors: 赖志铭; 韦安琪
Original assignee: Foxsemicon Integrated Technology Shanghai Inc; Foxsemicon Integrated Technology Inc
Current assignee: Foxsemicon Integrated Technology Shanghai Inc; Foxsemicon Integrated Technology Inc
Priority date: 2008-11-28
Filing date: 2008-11-28
Publication date: 2012-07-18

Abstract

The invention discloses an indoor lamp which comprises a lamp hood, at least one lighting element, an optical piece, and a connecting clamping hook, wherein the lamp hood is provided with a containing space and an opening, the opening end of the lamp hood extends outwards to form a flange, the opening is rectangular, the flange is formed along two parallel edges of the rectangular opening, the at least one lighting element is arranged in the containing space of the lamp hood, the optical piece is arranged at the opening of the lamp hood, and selectively covers a partial region of the opening so as to enable the other region of the opening not to be covered, the optical piece reduces the luminance of light emitted from the covered region, the optical piece can move along the extending direction of the flange, one end of the connecting clamping hook is movably connected with the flange and can slide along the flange, and the other end of the connecting clamping hook is connected with the optical piece for fixedly holding the optical piece. The optical piece reduces the luminance of the light emitted from the covered region by selectively covering the partial region of the opening, so that glaring can be effectively prevented, and the indoor lamp can have a good lighting effect.

Description

Indoor lamp

Statement

The application is directed against dividing an application of original application the 4th, the 5th embodiment, and the applying date of this original application is on November 28th, 2008, and application number is 200810305861.5, and name is called: indoor lamp.

Technical field

The present invention relates to a kind of indoor lamp, relate in particular to a kind of indoor lamp with anti-dazzle function.

Background technology

Light fixture is a lighting device indispensable in people's daily life like desk lamp, street lamp etc., and it plays an important role in people's study and work.The research of light fixture can be consulted the paper A Methodology to Determine Electrical Energy Consumption in Street Lighting Systems that people such as G. Miguel Ereu deliver in IEEE system, transmission of electricity and distribution seminar in 2006 and exhibition (Transmission & Distribution Conference and Exposition:Latin America, 2006. TDC ', 06. IEEE/PES).

Usually; Human eye has certain acceptance to the brightness of the light that light fixture sent, and when the brightness of the light that gets into human eye was too low, human eye was not easy to distinguish object; And when high light gets into human eye; It is easy to stimulate human eye, makes human eye produce " dazzle " phenomenon, and cause human eye resolving ability and eyesight descend.In the prior art; If the brightness of light is too low; Can reach the effect that promotes the human eye resolving ability through the luminous intensity of heightening light fixture, yet the generation of dazzle is except outside the Pass the luminous intensity phase with illuminator in the light fixture; Also there is very big relation the position with the observer place, eliminates dazzle in the prior art and has become technical barrier one.

In view of this, provide a kind of indoor lamp with anti-dazzle function particularly important.

Summary of the invention

To a kind of indoor lamp with anti-dazzle function be described with embodiment below.

A kind of indoor lamp, it comprises:

A lampshade, it has a receiving space and offers an opening, and the openend of said lampshade stretches out and forms a flange, and said opening is a rectangle, and said flange forms along two parallel edges of oblong openings;

At least one light-emitting component, it is arranged in the receiving space of this lampshade;

An optical sheet; Its opening part that is arranged on this lampshade also optionally covers the subregion of this opening and other open area is not capped; Said optical sheet reduces the brightness via the light of this subregion outgoing, and said optical sheet can move along the bearing of trend of this flange;

A connection grab, one of which end and this flange flexibly connect and can slide along this flange, and the other end and optical sheet join with this optical sheet of fixing.

With respect to prior art, the subregion of the opening of said optical sheet through optionally covering lampshade reduces the brightness by the light of this subregion outgoing, thereby can prevent dazzle effectively, so that indoor lamp has preferable illuminating effect.

Description of drawings

Fig. 1 is the structural representation of the indoor lamp that provides of first embodiment of the invention.

Fig. 2 is that the indoor lamp that first embodiment of the invention provides is applied to room lighting to prevent the principle schematic of dazzle.

Fig. 3 is that the indoor lamp that second embodiment of the invention provides is applied to room lighting to prevent the principle schematic of dazzle.

Fig. 4 is the structural representation of the indoor lamp that provides of third embodiment of the invention.

Fig. 5 is the structural representation of the indoor lamp that provides of fourth embodiment of the invention.

Fig. 6 is the structural representation of the indoor lamp that provides of fifth embodiment of the invention.

Fig. 7 is the structural representation of the indoor lamp that provides of sixth embodiment of the invention.

The specific embodiment

To combine accompanying drawing below, so that the embodiment of the invention is done further to specify.

See also Fig. 1, a kind of indoor lamp 10 that first embodiment of the invention provides, it has the anti-dazzle function, and this indoor lamp 10 comprises a light-emitting component 12, a lampshade 14 and an optical sheet 16.

This light-emitting component 12 can be light emitting diode, and (Light emitting diode, LED), certainly, it also can be other light-emitting component, like fluorescent lamp, incandescent lamp, gas-discharge lamp, Halogen lamp LED etc.In addition, the number of this light-emitting component 12 can be a plurality of.

This lampshade 14 has a conical profile, and has a receiving space 140 in it.This light-emitting component 12 is positioned at this receiving space 140.This lampshade 14 offers a circular open 142, and the openend of this lampshade stretches out and forms an annular flange 14A.

This optical sheet 16 is arranged on the opening 142 and covers the subregion of this opening 142, and wherein, definition is M by the subregion that this optical sheet 16 covers, and other zone that is not covered by this optical sheet 16 is N.At present embodiment, said optical sheet 16 is a diffusion sheet.

This indoor lamp 10 also includes a connection grab 18.This connects this optical sheet 16 of an end 180 fixings of grab 18, and the other end 182 flexibly connects with this flange 14A and can slide along this flange 14A.When this connects grab 18 when this flange 14A slides, the optical sheet 16 of its fixing can be around the central shaft rotation of this opening 142.

This indoor lamp 10 can be used in the room lighting.As shown in Figure 2, the light I that is sent by light-emitting component 12 has an angle of emergence θ (angle of light I and vertical line).When this optical sheet 16 does not cover this subregion M, but this light I direct irradiation (shown in dotted line I among Fig. 2) and the reflection back takes place on this desktop 200 get into human eye to desktop 200, and at this moment, the user experiences the glare phenomenon that reverberation causes.And when this optical sheet 16 covered this subregion M, this light I shone on the optical sheet 16 and diffusion type deflection takes place, this light I via these optical sheet 16 outgoing after again towards away from the direction outgoing of human eye to extraneous (shown in solid line II among Fig. 2).Thus, the brightness of this light I after the M outgoing of subregion reduces, and can prevent that reverberation from getting into human eye, reaches the purpose of anti-dazzle.Usually, said optical sheet 16 is that the light that 30 degree～75 are spent has preferable anti-dazzle effect for incidence angle θ.What need indicate is that for other the regional N that is not covered by optical sheet 16, light I can be directly extremely extraneous via opening 142 outgoing, plays normal illumination function.

This optical sheet 16 can rotate around the central shaft of circular open 142, and the subregion M that the user can be covered according to regioselectivity ground this optical sheet 16 of adjustment at its place makes this optical sheet 16 reach best to its anti-dazzle effect of reaching.

In order to make optical sheet 16 have preferable anti-dazzle effect, the transmissivity of this optical sheet 16 can select to be less than or equal to 80%, and preferably, the transmissivity of this optical sheet 16 is less than or equal to 60%.

Certainly; This optical sheet 16 is not limited to the described diffusion sheet of present embodiment; It also can be anti-dazzling screen (anti dazzling screen), and reflector plate (reflector), optical filter (filter) are like neutral-density filter (neutral density filter), band pass filter (bandpass filter) etc.; Or the optical sheet of other type, as long as it can reduce the brightness of the light that gets into human eye.When this optical sheet 16 was band pass filter, it was that the visible light of 410nm～780nm has preferable anti-dazzle effect for wave-length coverage.

As shown in Figure 3; A kind of indoor lamp 30 that second embodiment of the invention provides, the indoor lamp 10 that itself and first embodiment are provided is basic identical, and difference is; This optical sheet 36 is a light deflection sheet; It includes the laciniation of a plurality of array arrangements, behind the laciniation of the light that light-emitting component 32 sends via this light deflection sheet 36 deviation takes place, and the direction of this deviation can prevent that equally light from reflection taking place on the desktop 300 and getting into the glare phenomenon that is caused behind the human eye.Likewise, this optical sheet 36 is that the light that 30 degree～75 are spent has preferable anti-dazzle effect for incidence angle θ.

Further; As shown in Figure 4, third embodiment of the invention provides a kind of indoor lamp 40, and the difference of the indoor lamp 10 that itself and first embodiment are provided is; This lampshade 40 further includes a diffuser 43; This diffuser 43 and lampshade 44 basic couplings are with opening 442 sealings, and this diffuser 43 is between light-emitting component 42 and optical sheet 46, and optical sheet 46 optionally is attached on this diffuser 43 through a position stickup face 460 on it.

This diffuser 43 is a transparent body, the direction of the light that it is used for sending through optics adjustment light-emitting component 42, and for example, optics is dispersed or this light of optical focus, and adjusts the illumination zone of this light-emitting component 42.This optical sheet 46 can be attached on the diffuser 43 according to the regioselectivity ground at user place, to reach the anti-dazzle effect of the best.

See also Fig. 5; A kind of indoor lamp 50 that fourth embodiment of the invention provides; Compare with the indoor lamp 10 that first embodiment of the invention provides; Its difference is: lampshade 54 and light-emitting component 52 are respectively strip, and opening 542 is a rectangle, and this lampshade 54 has the flange 54A that two parallel edges by this opening 542 extend to form; And can connect grabs 58 along two of this two flange 54A slip, can drive the bearing of trend moving linearly of optical sheet 56 through moving this two connections grab 58 along this flange 54A.

Said indoor lamp 50 can further change to the

indoor lamp

60,70 that the present invention the 5th, the 6th embodiment is provided.

As shown in Figure 6; Said indoor lamp 60 is compared with the indoor lamp 50 that fourth embodiment of the invention provides; Its difference is: indoor lamp 60 further comprises an arcuation diffuser 63 between light-emitting component 62 and optical sheet 66; This diffuser 63 is a convex surface along the side away from light-emitting component 62, and accordingly, the convex surface of optical sheet 66 and this diffuser 63 is complementary and is arcuation.

As shown in Figure 7; Said indoor lamp 70 is compared with the indoor lamp 50 that fourth embodiment of the invention provides; Its difference is: opening 742 is arc, and flange 74A forms along two arc limits of arc opening 742, and optical sheet 76 can move along the direction at this place, arc limit.

It is understandable that, for the person of ordinary skill of the art, can technical conceive according to the present invention make the change and the distortion of other various correspondences, and all these change the protection domain that all should belong to claim of the present invention with distortion.

Claims

1. indoor lamp, it comprises:

2. indoor lamp as claimed in claim 1; It is characterized in that; Said indoor lamp further comprises a diffuser, and the opening of said diffuser and said lampshade matees basically and with this opening sealing, this diffuser is between at least one light-emitting component and this optical sheet.

3. indoor lamp as claimed in claim 1 is characterized in that, said optical sheet be in diffusion sheet, anti-dazzling screen or the optical filter any one.

4. indoor lamp as claimed in claim 3 is characterized in that, said optical filter is neutral-density filter or band pass filter.

5. indoor lamp as claimed in claim 1 is characterized in that, said light-emitting component is a light emitting diode.