CN112228794A

CN112228794A - Table lamp device and method for achieving illumination uniformity of 1 or close to 1 through LED lamp bead lens

Info

Publication number: CN112228794A
Application number: CN202011229851.5A
Authority: CN
Inventors: 张琼
Original assignee: Huizhou Huilaite Photoelectric Technology Co ltd
Current assignee: Huizhou Huilaite Photoelectric Technology Co ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-01-15

Abstract

The invention relates to the technical field of illumination, in particular to a desk lamp device and a desk lamp method for achieving the purpose that the illumination uniformity is 1 or close to 1 through an LED lamp bead lens. Which comprises the following steps: the lamp beads emit parallel light, and the emitted light enters the polarizing lens and is focused towards the center; the light rays after the deviation and the gathering enter the uniform lens and are refracted again, and the refracted light rays can deviate from the axis taking the light outlet of the lamp cap as the geometric center, so that the illumination uniformity in a one-third sector taking the lamp bead as the center of a circle and having the radius distance of 500mm is 1 or close to 1. The structure design of the invention is that the arranged polarized light uniform lens structure is matched with the uniform lens structure, and the light is uniformly optimized. The effect of improving the illumination uniformity is achieved, and the problem that the illumination uniformity of a common desk lamp with the vertical projection point of the geometric center of the light outlet of the lamp cap as the center of the illumination axis is difficult to reach 1 or nearly 1 is solved.

Description

Table lamp device and method for achieving illumination uniformity of 1 or close to 1 through LED lamp bead lens

Technical Field

The invention relates to the technical field of illumination, in particular to a desk lamp device and a desk lamp method for achieving the purpose that the illumination uniformity is 1 or close to 1 through an LED lamp bead lens.

Background

According to the national standard GBT9473-2017, for a desk lamp with an undeflected light ray center, a vertical projection point of a geometric center of a light outlet of a lamp holder is taken as a circle center and is positioned right in front of eyes, within a projection range of the lamp, a radius distance from the circle center is within a sector of one third of 500mm, and 30 degrees are taken as intervals, illuminance measurement is carried out on a radius line, the test interval is 100mm, the average value of uniformity is about 3, the illumination uniformity most suitable for human eyes is about 1, and the desk lamp with the uniformity of 3 is used for a long time, so that a desk lamp device capable of effectively improving the illumination uniformity is needed.

Disclosure of Invention

The invention aims to provide a desk lamp device and a desk lamp method for achieving the purpose that the illumination uniformity is 1 or close to 1 through an LED lamp bead lens, so as to solve the problems in the background technology.

In order to achieve the above object, one of the objects of the present invention is to provide a method for achieving a uniform illuminance of 1 or close to 1 through an LED lamp bead lens, comprising the following steps:

s1, the lamp beads on the polarized light structure arranged in the shell emit parallel light, the emitted light enters the polarized lens, and the light is focused to the center through the refraction of the polarized lens;

s2, enabling the light rays after offset gathering to enter the uniform lens and be refracted again, deviating from the axis with the light outlet of the lamp cap as the geometric center after refraction, and forming an illumination point with the axis projection point of the geometric center of the light outlet of the lamp cap as the illumination axis within the range of 100-400 mm;

and S3, further diffusing the light outward to enable the illumination uniformity to be 1 or close to 1 in a one-third sector with the radius distance of 500mm taking the lamp bead as the center.

The invention also aims to provide a device for achieving the illumination uniformity of 1 or close to 1 through an LED lamp bead lens, which comprises a shell, and a uniform structure and a polarization structure which are arranged in the shell;

the shell comprises a shell, a pedestal is arranged in the shell, and a polarization structure is fixed on the pedestal;

the polarizing structure comprises a fixing sleeve, a lamp plate is arranged at the bottom of the fixing sleeve, a lamp bead is arranged on the lamp plate, a polarizing lens is arranged below the lamp bead, and the polarizing lens is tightly attached to the lamp bead;

the polarisation structure is when using, and when light was sent by the lamp pearl, then the polarized lens through the lamp pearl below can squint luminous axle center, and is preferred, and polarized lens hugs closely the light that the lamp pearl made the lamp pearl send and can be regarded as the parallel light.

The uniform structure comprises a uniform lens, and the uniform lens is positioned below the polarized lens;

when the uniform structure is used, light after first being deflected enters the uniform lens, the light of the axis of the gathering is homogenized, then the light passes through the uniform lens and continues to be diffused in the air, the illumination uniformity in the sector of one third with the radius distance of 500mm taking the lamp bead as the circle center is 1 or close to 1, the distance between the preferred uniform lens and the polarized lens is smaller than one-time focal length of the polarized lens, the polarized effect is good, and the structure is more compact.

The shell lateral wall is equipped with the through-hole, the through-hole in-connection has the support, be equipped with the wire in the support, wire in the support is connected lamp plate and power.

As a further improvement of the technical scheme, the lamp panel is fixed in the fixed sleeve.

As a further improvement of the technical scheme, a protruding structure is arranged at the bottom of the fixing sleeve.

As a further improvement of the present technical solution, a distance from the polarized lens to the uniform lens is less than one focal length of the polarized lens.

As a further improvement of the technical scheme, a threaded hole is formed in the pedestal, the side face of the uniform lens is provided with a fixing ring, the fixing ring is provided with a round hole, a bolt is arranged in the round hole and penetrates through the round hole, and the bolt is in threaded connection with the threaded hole.

Overall structure is at the during operation, at first the switch on makes the lamp plate circular telegram, then the lamp pearl on the lamp plate begins to give out light, because the lamp pearl has spotlight skew lens, the light that so lamp pearl got into spotlight skew lens is visual as the parallel light, spotlight skew lens plays the effect of spotlight skew, then can be deviated in 100mm-400mm within range as illumination axle center illumination point by the axle center projection point of the geometric centre of lamp holder light-emitting window by skew light axle center after getting into even lens 2, it is the centre of a circle to enable to use the lamp pearl, the degree of consistency in the radius distance is the fan-shaped one-third of 500mm promotes, thereby improve user's experience with the eye.

Compared with the prior art, the invention has the beneficial effects that:

1. in this kind of reach the even desk lamp device and the method that is 1 or is close 1 of illuminance through LED lamp pearl lens, should reach the even desk lamp device and the method that is 1 or is close 1 of illuminance through LED lamp pearl lens, through the polarisation skew structure cooperation uniform structure that sets up, can be to the skew light axle center under the condition of gathering of the light that lamp pearl sent on the lamp plate, and evenly optimize light, reach the effect that improves the illumination degree of consistency, the problem that the desk lamp illumination degree of consistency that ordinary use lamps and lanterns vertical projection point as the illumination axle center is difficult to improve has been solved, make the illumination degree of consistency reach 1 or be close 1, promote user and use experience.

Drawings

FIG. 1 is a schematic view of an improved illumination axis of example 1;

FIG. 2 is a schematic view of an illumination axis of the general desk lamp of embodiment 1;

FIG. 3 is a schematic view of the entire structure of embodiment 1;

fig. 4 is a schematic diagram of the lamp of embodiment 1 with a disassembled structure;

fig. 5 is a schematic diagram of splitting the offset structure in embodiment 1.

The various reference numbers in the figures mean:

100. a housing; 110. a housing; 120. a pedestal; 121. a threaded hole; 130. a through hole; 140. a support structure;

200. a uniform lens; 220. a fixing ring; 221. a circular hole; 230. a bolt;

300. an offset structure; 310. fixing a sleeve; 320. a lamp panel; 321. a lamp bead; 330. a uniform lens.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example 1

Referring to fig. 1-5, one of the objectives of the present embodiment is to provide a method for achieving a uniform illuminance of 1 or close to 1 through an LED lamp bead lens, comprising the following steps:

s1, the lamp beads 321 mounted on the polarization structure 300 in the housing 100 emit parallel light, the emitted light enters the polarized lens 330, and the light is focused toward the center by the refraction of the polarized lens 330;

s2, enabling the light rays after offset gathering to enter the uniform lens 200 and be refracted again, and enabling the refracted light rays to deviate from the axis with the light outlet of the lamp cap as the geometric center to form an illumination point with the axis projection point of the geometric center of the light outlet of the lamp cap as the illumination axis within the range of 100-400 mm;

and S3, diffusing the light further outwards to enable the illumination uniformity to be 1 or close to 1 in a third sector with the radius distance of 500mm and taking the lamp bead 321 as the center.

The second purpose of the embodiment is to provide a device for achieving the illumination uniformity of 1 or close to 1 through an LED lamp bead lens, which comprises a shell 100, a uniform structure 200 and a polarization structure 300, wherein the uniform structure 200 and the polarization structure are installed in the shell;

the housing 100 includes a casing 110, a pedestal 120 is disposed in the casing 110, and a polarization structure 300 is fixed on the pedestal 120;

the polarization structure 300 comprises a fixing sleeve 310, a lamp panel 320 is arranged at the bottom of the fixing sleeve 310, preferably, a screw with a nut is used for fixing, the lamp panel 320 can be suspended in the air to improve the heat dissipation effect, the lamp panel 320 is convenient to detach and replace and convenient to use, a lamp bead 321 is arranged on the lamp panel 320, the lamp bead is preferably a light emitting diode, the light emitting diode is a solid semiconductor device and can directly convert electricity into light, and a polarization lens 330 is arranged below the lamp bead 321;

when the light polarizing structure 300 of this embodiment is used, when light is emitted by the lamp bead 321, and then passes through the polarized lens 330 below the lamp bead 321, the light-emitting axis can be shifted, and preferably, the polarized lens 330 is tightly attached to the lamp bead 321, so that light emitted by the lamp bead 321 can be regarded as parallel light.

The uniform lens 210 is located below the polarized lens 330;

when the uniform structure 200 of this embodiment is used, the light after first shifting enters the uniform lens 210, the axis light of gathering is homogenized, then the light continues to diffuse in the air after passing through the uniform lens 210, the illumination uniformity in the one-third sector with the radius distance of 500mm taking the lamp bead 321 as the center of a circle is 1 or close to 1, the distance between the preferred uniform lens 210 and the polarized lens 330 is less than one-time focal length of the polarized lens 330, the polarization effect is good, and the structure is more compact.

The lateral wall of the shell 110 is provided with a through hole 130, a support 140 is fixed in the through hole 130, a wire is arranged in the support 140, and the wire in the support 140 is connected with the lamp panel 320 and a power supply to provide support and power supply for the lamp.

Further, fixed cover 310 includes bottom plate 311, and the bottom surface of lamp plate 320 bonds on the surface of bottom plate 311, fixes lamp plate 320, prevents to rock.

Still further, the bottom plate 311 is a hollow circular ring structure, and suspends the lamp panel 320, so that the lamp panel 320 can dissipate heat conveniently.

Specifically, the distance from the polarizer 330 to the uniformizing lens 210 is less than one focal length of the polarizer 330, so that the polarizing effect is good, and the structure is more compact.

In addition, threaded hole 121 has been seted up on pedestal 120, and even lens 210 side is equipped with solid fixed ring 220, has seted up round hole 221 on the solid fixed ring 220, is equipped with bolt 230 in the round hole 221, and bolt 230 passes round hole 211, bolt 230 and threaded hole 121 threaded connection, and threaded connection's mode is convenient for dismantle and change lamp plate 320.

In the embodiment, when the lamp panel 320 is powered on, the lamp bead 321 on the lamp panel 320 starts to emit light, and the lamp bead 321 has the condensing offset lens 330, so that light entering the condensing offset lens 330 by the lamp bead 321 can be regarded as parallel light, the condensing offset lens 330 has the effect of condensing offset, and then the focused light can be used as an illumination axis illumination point within a range of 100mm-400mm by an axis projection point of the offset light axis offset from the geometric center of the light outlet of the lamp cap after entering the uniform lens 200, so that the uniformity in a sector with the radius distance of 500mm and the lamp bead 321 as the center of a circle can be improved, and the eye experience of a user can be improved.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a method for reach that illuminance is even 1 or is close to 1 through LED lamp pearl lens which characterized in that: the method comprises the following steps:

s1, the lamp beads (321) on the polarizing structure (300) arranged in the shell (100) emit parallel light, the emitted light enters the polarizing lens (330), and the light is focused towards the center through the refraction of the polarizing lens (330);

s2, enabling the light rays after deflection and collection to enter the uniform lens (200) and be refracted again, and enabling the refracted light rays to deviate from an axis with the light outlet of the lamp cap as a geometric center to form an illumination point with an axis projection point of the geometric center of the light outlet of the lamp cap as an illumination axis within the range of 100-400 mm;

s3, the light is further diffused outwards, so that the illumination uniformity in a one-third sector with the radius distance of 500mm taking the lamp bead (321) as the center is 1 or close to 1.

2. A device for achieving uniform illumination of 1 or close to 1 through an LED lamp bead lens for implementing the method of claim 1, wherein: comprises a shell (100), a uniform lens (200) and a polarization structure (300) which are arranged in the shell;

the shell (100) comprises a shell (110), a pedestal (120) is arranged in the shell (110), and a polarization structure (300) is fixed on the pedestal (120);

the polarized light structure (300) comprises a fixed sleeve (310), a lamp panel (320) is arranged at the bottom of the fixed sleeve (310), a lamp bead (321) is arranged on the lamp panel (320), and a polarized lens (330) is arranged below the lamp bead (321);

the uniform lens (200) is positioned below the polarized lens (330);

the utility model discloses a lamp panel, including shell (110), through-hole (130) are equipped with to the lateral wall of shell (110), be connected with support (140) on through-hole (130), be equipped with the wire in support (140), wire in support (140) is connected lamp plate (320) and power.

3. The device of claim 2 for achieving uniform illumination of 1 or near 1 through the LED lamp bead lens, wherein: the lamp plate (320) is fixed in the fixing sleeve (310).

4. The device of claim 2 for achieving uniform illumination of 1 or near 1 through the LED lamp bead lens, wherein: the bottom of the fixed sleeve (310) is provided with a convex structure.

5. The device of claim 2 for achieving uniform illumination of 1 or near 1 through the LED lamp bead lens, wherein: the distance from the polarized lens (330) to the uniform lens (200) is less than one focal length of the polarized lens (330).

6. The device of claim 2 for achieving uniform illumination of 1 or near 1 through the LED lamp bead lens, wherein: threaded hole (121) has been seted up on pedestal (120), even lens (200) side is equipped with solid fixed ring (220), gu seted up round hole (221) on fixed ring (220), be equipped with bolt (230) in round hole (221), bolt (230) pass round hole (221), bolt (230) with threaded hole (121) threaded connection.