CN2924285Y

CN2924285Y - LED desk lamp

Info

Publication number: CN2924285Y
Application number: CNU2006201186600U
Authority: CN
Inventors: 谢启堂; 林长青; 黄博亮
Original assignee: JUHONG ELECTRONICS CO Ltd
Current assignee: JUHONG ELECTRONICS CO Ltd
Priority date: 2006-06-13
Filing date: 2006-06-13
Publication date: 2007-07-18
Anticipated expiration: 2016-06-13

Abstract

The utility model relates to a LED reading lamp, which mainly consists of a lamp shell with an LED light source, a bracket and a bottom seat, characterized in that the lamp shell is added with a light uniform effect lens body which can cover LED light source. The lens body comprises an input mirror and an output mirror. The input mirror and the output mirror are respectively arranged at two corresponding ends of the lens body. The input mirror is convex mirror, and the output mirror is provided with a plurality of matching mirrors, and the matching mirrors constitute a mirror group in parallel. Owing to the effect of the matching mirrors, the beam in the periphery area of the mirror can be diffusely irradiated through the matching mirror, the halo problems due to only using single convex mirror is solved, thus the light source emitted by the LED reading lamp of the utility model is more uniform. Furthermore, the lamp shell can be cooling fins structure, and the heat radiating effect of the LED light source can be strengthened.

Description

The LED desk lamp

Technical field

The utility model relates to a kind of LED desk lamp, refers to that especially its lampshade increases the LED desk lamp of the lenticular body that covers led light source in addition.

Background technology

Volume is little, heat production is low, power consumption is low, the characteristic of long service life owing to having for led light source, add recent improvement of Manufacturing Technology, its luminosity constantly promotes, and its manufacturing cost also reduces gradually, in foreseeable future, led light source will replace present bulb or fluorescent lamp source, and become most important luminescence component in the lighting apparatus.

In the illumination light source that is utilized at present, with white light is large, but because the LED crystal grain of direct emission white light is not arranged at present, so must utilize different color light to mix the back to form white light, but because the characteristic and the shortcoming of LED crystal grain itself, cause easily after ray cast, form the phenomenon of light area by outwards inclined to one side gradually Huang in center and colourity inequality.So if when adopting led light source as the light source of desk lamp, it is to be solved to still have above problem to have.

In addition, if when enough brightness need be provided, also must increase the quantity of LED crystal grain relatively, but thus, will increase desk lamp institute liberated heat.So,, on heat dissipation problem, also have to be overcome for avoiding the lost of life of desk lamp.

The utility model content

Main purpose of the present utility model provides a kind of LED desk lamp, and by the lenticular body with light uniformization effect that is enough to cover led light source, the light source that makes the LED desk lamp be sent can be comparatively even.

Based on above-mentioned purpose, LED desk lamp provided by the utility model mainly is made up of the lampshade that contains led light source, support, base, it is characterized in that, lampshade is set up the lenticular body with light uniformization effect that is enough to cover led light source in addition.Lenticular body is incorporated into light microscopic face and bright dipping minute surface.Light inlet minute surface and bright dipping minute surface are located at the opposite end of lenticular body respectively.The light inlet minute surface is a convex lens, then is distributed with several lens on the bright dipping minute surface, and these lens and arrangement formation minute surface group.

Effect by these lens, make light through its minute surface outer peripheral areas of bright dipping minute surface, also can be through luminous intensity distribution and can scatter irradiation, the halation problem that elimination utilized simple convex lens in the past and produced, and then the light source that makes the utility model LED desk lamp be sent can be comparatively even.In addition, the outer surface of lampshade can be heat radiation fin structure, and structure is strengthened the radiating effect of led light source whereby.Can be further understood by the following specific embodiment and description of drawings about advantage of the present utility model and spirit.

Description of drawings

Fig. 1 is the schematic diagram of the utility model LED desk lamp.

Fig. 2 is the generalized section of the utility model lampshade.

Fig. 3 is the schematic perspective view of the utility model lenticular body.

Fig. 4 is the schematic perspective view of the utility model lenticular body.

Fig. 5 is the generalized section of the utility model lenticular body.

Description of reference numerals:

5 LED desk lamps, 20 lenticular bodies

10 bases, 21 bright dipping minute surfaces

12 supports, 211 lens

14 lampshades, 22 light inlet minute surfaces

18 led light sources, 23 rooms

19 aluminium bases

The specific embodiment

See also Fig. 1, Fig. 1 is the schematic diagram of the utility model LED desk lamp.As shown in Figure 1, the utility model LED desk lamp 5 mainly is made up of lampshade 14, support 12, base 10.

See also Fig. 2, Fig. 2 is the generalized section of the utility model lampshade.Fig. 2 is the profile of BB ' line segment among Fig. 1.As shown in Figure 2, except containing led light source 18, also set up the lenticular body with light uniformization effect 20, the aluminium base 19 that are enough to cover led light source 18 in addition in the utility model lampshade 14.

See also Fig. 3 and Fig. 4, Fig. 3 and Fig. 4 are the schematic perspective view of the utility model lenticular body.The utility model lenticular body 20 includes light microscopic face 22 and bright dipping minute surface 21.Light inlet minute surface 22 and bright dipping minute surface 21 are to be located at the relative two ends of lenticular body 20.Bright dipping minute surface 21 is provided with several lens 211, is provided with room 23 in order to ccontaining led light source simultaneously and lenticular body 20 is provided with an end of light inlet minute surface 22.So the light when led light source 18 is sent enters in the lenticular body 20 via 22 projections of light inlet minute surface, can be cast out by bright dipping minute surface 21.

See also Fig. 5, Fig. 5 is the generalized section of the utility model lenticular body.Fig. 5 is the profile of Fig. 3 AA ' line segment.Shown in Figure 5, on the bright dipping minute surface 21 of the utility model lenticular body 20, be provided with several lens 211, these lens 211 be arranged distribution on bright dipping minute surface 21, and form in order to emergent ray homogenising minute surface group in addition.

So, after led light source 18 is inserted the set room 23 of lenticular body 20, the light that led light source 18 is launched can be injected in the lenticular body 20 by light inlet minute surface 22, light inlet minute surface 22 can be convex lens, therefore the light that led light source 18 can be scattered is drawn close to the minute surface center, thereby the angle of minimizing light scattering, to increase the brightness of whole projection.Light is advanced in lenticular body 20, promptly prepares thereafter outwards to be throwed away by bright dipping minute surface 21 ends.

Because the convex lens that this bright dipping minute surface 21 is positive curvature mirrors in the present embodiment, and several lens 211 have been abound with on the bright dipping minute surface 21, when these lens 211 also are the minute surface of positive curvature mirror, light will distribute through overbunching again, the light that originally is radial and non-intersect mistake is occured simultaneously, and by the common factor mixed light effect of each light, the light luminosity that led light source 18 is projected is more even.While is by the effect of these lens 211, make light through bright dipping minute surface 21 its minute surface outer peripheral areas, also can scatter irradiation through luminous intensity distribution, eliminate the halation problem utilized simple convex lens in the past and produced, and then the light source that makes the utility model LED desk lamp 5 be sent can be comparatively even.

In addition, the outer surface of lampshade 14 can be heat radiation fin structure (not describing), and structure is strengthened the radiating effect of led light source 18 whereby.

By the above detailed description of preferred embodiments, hope can be known description feature of the present utility model and spirit more, and is not to come category of the present utility model is limited with the above-mentioned preferred embodiment that is disclosed.On the contrary, its objective is that hope can contain in the category of the claim that is arranged in the desire application of the utility model institute of various changes and tool equality.

Claims

1, a LED desk lamp, this desk lamp mainly is made up of a lampshade, a support, a base, this lampshade contains a led light source, it is characterized in that, this lampshade is set up the lenticular body with light uniformization effect that is enough to cover this led light source in addition, this lenticular body comprises a light inlet minute surface and a bright dipping minute surface, this light inlet minute surface and this bright dipping minute surface are the opposite ends of being located at this lenticular body respectively, wherein this light inlet minute surface is a convex lens, then be distributed with several lens on this bright dipping minute surface, these lens are also arranged formation one minute surface group.

2, LED desk lamp as claimed in claim 1 is characterized in that this led light source is one to add the white light LEDs of yellow fluorescence bisque by blue-ray LED crystal grain.

3, LED desk lamp as claimed in claim 1 is characterized in that this bright dipping minute surface is concavees lens face or protruding face mirror.

4, LED desk lamp as claimed in claim 1 is characterized in that respectively the vertical and horizontal curvature mirror of this lens is identical or different.

5, LED desk lamp as claimed in claim 1, it is characterized in that described lens be with matrix-style arrange, the honeycomb mode is arranged or the concentric circles mode is arranged.

6, LED desk lamp as claimed in claim 1 is characterized in that this led light source is provided with an aluminium base behind.

7, LED desk lamp as claimed in claim 1, the outer surface that it is characterized in that this lampshade is a heat radiation fin structure.