CN110894931A

CN110894931A - Polarization interference light biological safety eye-protecting lampshade and photo-biological safety eye-protecting lamp

Info

Publication number: CN110894931A
Application number: CN201911358322.2A
Authority: CN
Inventors: 刘东升; 惠春龙; 王雅杰
Original assignee: HARBIN GONGDA PHOTOELECTRIC TECHNOLOGY Co Ltd
Current assignee: HARBIN GONGDA PHOTOELECTRIC TECHNOLOGY Co Ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-03-20

Abstract

The invention relates to a polarized interference light biological safety eye protection lampshade and a photo-biological safety eye protection lamp, which belong to the field of lighting lamps and aim at the defects that the conventional lampshade cannot filter harmful light and blue light and influence color temperature and poor transmittance. The invention relates to an optical biological safety eye-protecting lamp based on a polarized interference light biological safety eye-protecting lamp shade, which comprises a lamp shade, a lamp holder and a light source, wherein the light source is surrounded by the lamp shade, and the lamp shade is fixed at the upper part of the lamp holder. The invention is mainly used for protecting the illuminating lamp.

Description

Polarization interference light biological safety eye-protecting lampshade and photo-biological safety eye-protecting lamp

Technical Field

The invention belongs to the field of illuminating lamps, and particularly relates to a photobiological safety eye-protecting lampshade and a photobiological safety eye-protecting lamp.

Background

With the continuous progress of science and technology, LED light sources gradually replace incandescent lamps and fluorescent lamps to become new illumination light sources with the outstanding advantages of high brightness, long service life and high energy conversion rate. Although LED light sources have many advantages, the emitted light contains high-energy blue light and other harmful light, and the long-term study and work in the environment can cause irreversible damage to human eyes. Because the light is composite light, no particularly effective method can filter blue light and harmful light in the market at present, and if a method of adding a chemical reagent into a lampshade is adopted, although the light in a certain waveband range can be blocked, the color temperature of the environment can be influenced, and normal learning and working are not facilitated. Light emitted by the existing LED light source comprises harmful light mainly comprising high-energy blue light, and visual fatigue and eye diseases are easily caused by long-time study and work in the environment. As a classroom lighting source, high-color temperature white light is mainly used, harmful light such as high-energy blue light is doped in the light source to form a beam of polychromatic light, and if a blue light resistant blocking agent is added into a lampshade material, light rays in a specific waveband can be filtered, so that the color temperature of the light source is reduced, the illumination is reduced, and the light ray quality is reduced. Since monochromatic light has different refractive indices in different media, it is difficult to filter all harmful light. In general, in the manufacturing process of the lamp shade, in order to solve the problem of light pollution, an additive is often added into the plastic master batch, and although the additive can reduce the harm of harmful light to a certain extent, the introduction of the additive inevitably affects the transparency of the lamp shade, so that the illumination is reduced, and the energy utilization rate is low. The traditional lamp shade is mostly made of acrylic or plastic plane materials, light emitted by a light source is directly transmitted to the air through the lamp shade, and therefore the glare value of the lamp shade is too high.

Therefore, there is a need for a polarized interference light biosafety eye-protecting lampshade and a photobiosafety eye-protecting lamp which can resist blue light, do not affect color temperature, weaken harmful light and do not affect light transmittance.

Disclosure of Invention

Aiming at the defects that the existing lampshade can not filter harmful light and blue light and influence color temperature and transmittance difference, the invention provides a polarized interference light biological safety eye protection lampshade and a photo-biological safety eye protection lamp which can resist blue light, do not influence color temperature, weaken harmful light and do not influence transmittance.

The invention relates to a technical scheme of a polarized interference light biological safety eye-protecting lampshade and a photobiological safety eye-protecting lamp, which comprises the following steps:

the invention relates to a polarized interference light biological safety eye-protecting lampshade which comprises a plurality of convex lenses, wherein the convex lenses are sequentially arranged.

Further: the lamp shade includes a plurality of convex lens, a plurality of convex lens are installed in order.

Further: the plurality of convex lenses are strip-shaped convex lenses with the same length, and the strip-shaped convex lenses are parallel to each other and are sequentially installed.

Further: the plurality of convex lenses are rectangular-clip-shaped convex lenses with the side length increasing in sequence, the transverse-longitudinal ratios of the rectangular-clip-shaped convex lenses are the same, and the rectangular-clip-shaped convex lenses are sequentially installed from inside to outside.

Further: the plurality of convex lenses are circular ring-shaped convex lenses with sequentially increasing radiuses, and the plurality of circular ring-shaped convex lenses are sequentially installed from inside to outside and concentrically arranged.

Further: the lampshade is rectangular, circular or circular.

Further: the refractive index of the convex lenses is 1.59-1.60.

Further: the arc angle of the convex lens is 57.99 degrees.

Further: the edge of the lampshade is also provided with a fixing part.

The utility model provides a light biohazard safety eye-protecting lamp based on biological safe eye-protecting lamp shade of polarization interference light, it includes lamp shade, lamp stand and light source, the light source is surrounded by the lamp shade, the lamp shade is fixed on lamp stand upper portion.

The invention relates to a polarized interference light biological safety eye-protecting lampshade and a photo-biological safety eye-protecting lamp, which have the beneficial effects that:

the invention relates to a polarized interference light biological safety eye-protecting lampshade and a photo-biological safety eye-protecting lamp, which mainly have obvious filtering and weakening effects on actinic ultraviolet, near ultraviolet, blue light, small light sources, retina heat, weak visual stimulation, infrared radiation and the like. The polarized interference light biological safety eye-protecting lampshade provided by the invention can reach the level of optical biological safety exemptions by the assembled lamp after being detected by an authority mechanism. The lampshade of the photobiological safety lamp can ensure that light rays generate polarization interference in the transmission process through the structural design, thereby filtering high-energy blue light and harmful light. Because the refractive indexes of monochromatic light in different media are different, the lampshade can filter harmful light through countless times of reflection and refraction in the process of light transmission, and a beam of pure light is created.

The lampshade controls harmful light such as high-energy blue light and the like through a physical structure, can improve the energy conversion efficiency, can be directly prepared and molded by plastic master batches in the process of preparing the lampshade, and does not need to add any additive into the master batches. The transparency of the lampshade is improved, and the energy conversion efficiency is further improved. The photobiological safety eye-protecting lampshade provided by the invention adopts a structure that a plurality of circular arcs are connected in sequence, so that originally divergent light rays can be converged, most of the light rays transmitted to the indoor can be directly irradiated on a desktop, the illumination of the desktop is improved, the direct irradiation of human eyes is avoided, and discomfort caused by glare is solved to a certain extent.

Drawings

FIG. 1 is a schematic cross-sectional view of a circular arc lampshade;

FIG. 2 is a schematic view of a circular arc shaped flat lampshade;

FIG. 3 is a schematic cross-sectional view of a planar lamp enclosure;

FIG. 4 is a schematic view of an inner and outer square shaped flat lamp cover;

FIG. 5 is a schematic view of a square outside and round inside planar lamp housing;

FIG. 6 is a schematic view of a circular flat lampshade;

FIG. 7 is a schematic view of a circular ring-shaped flat lampshade;

FIG. 8 is a light path diagram at a cross section;

FIG. 9 is a polarization diagram of light as it passes through a medium;

FIG. 10 is a schematic diagram of the Brewster angle of a light ray as it passes through a medium;

FIG. 11 is a graph of light dispersion at a cross-section;

in the figure, 1 is a lampshade, 2 is a convex lens, 3 is a fixing part, 4 is a bulge, and 5 is a groove.

Detailed Description

The technical solutions of the present invention are further described below with reference to the following examples, but the present invention is not limited thereto, and any modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Example 1

Referring to fig. 1, fig. 2 and fig. 3, in the present embodiment, a lampshade 1 of the biosafety eye-protecting lampshade for polarized interference light according to the present embodiment includes a plurality of convex lenses 2, and the plurality of convex lenses 2 are sequentially fixed to form a plane or a curved surface. As shown in fig. 1 and 2, the arc of the curved lampshade 1 formed by the method can be concave inwards or convex outwards. When the lampshade 1 is an inwards concave curved surface, a plurality of circular arc-shaped bulges 4 which are sequentially connected in parallel are arranged on the inner surface of the lampshade 1. When the lampshade 1 protrudes outwards, a plurality of arc-shaped grooves 5 which are sequentially connected in parallel are formed in the inner surface of the lampshade 1. The cross section of the optical biological safety eye-protecting lampshade 1 is unfolded and can be mainly prepared into a curved surface or a plane lampshade. The outer surface of the cross section of the optical biological safety eye-protecting lampshade is a smooth surface, the inner surface of the eye-protecting lampshade is provided with wave stripes, and the wave stripes are formed by sequentially connecting a plurality of grooves with arc cross sections. The cross section can be approximately seen as a circle, a circular arc or a rectangle.

Example 2

In this embodiment, the plurality of convex lenses 2 are strip-shaped convex lenses with the same length, and the strip-shaped convex lenses are parallel to each other and are sequentially mounted. The outer frame of the lampshade 1 is rectangular.

Example 3

In the present embodiment, the polarized interference light biosafety eye-protecting lampshade according to the present embodiment is described with reference to fig. 4 and embodiment 1, in which the plurality of convex lenses 2 are square-shaped convex lenses with sequentially increasing side lengths, and the aspect ratios of the plurality of square-shaped convex lenses are the same. Thereby forming a planar surface of a shape of a circle that increases from small to large.

Example 4

In this embodiment, in the biological safety eye-protecting lampshade for polarized interference light according to this embodiment, the convex lenses 2 are circular convex lenses with sequentially increasing radii, and the circular convex lenses are all concentric circles. Thereby forming circular planes that increase in size from small to large. The lampshade 1 is rectangular, circular or circular in shape. When the lampshade 1 is a plane. The lampshade can be rectangular or round, and the convex lenses 2 can enclose a plurality of square-shaped lenses.

Example 5

The present embodiment is described with reference to fig. 5-fig. 7 and embodiment 1, in the present embodiment, a polarized interference light biological safety eye-protecting lampshade related to the present embodiment, and the lampshade 1 is a convex polystyrene lens with a refractive index of 1.59-1.60. The arc angle of the convex lens 2 is 57.99 degrees. The edge of the lampshade 1 is also provided with a fixing part 3. Fig. 8 is light biological safe eyeshield lamp shade cross section department light path diagram, light biological safe eyeshield lamp shade is formed by connecting in order a plurality of convex lens, when light source light passes through light biological safe eyeshield lamp shade, because the polystyrene material of refracting index 1.59-1.60 is chooseed for use to the lamp shade, the material is transparent, the light transmissivity can reach 80-90%, when light passed the lamp shade, twice refraction takes place for light, after the refraction, assemble the light that the light source sent, can effectively avoid light direct incidence people's eye, very big reduction indoor environment's dizzy light value.

In fig. 9, when incident light is incident into the transparent medium at an angle, the reflected light is polarized light having a polarization direction perpendicular to the incident surface (S-polarized light), and the projected light is partially polarized light. In the mode, the light emitted by the light source emits polarized light after passing through the optical biological safety eye-protecting lampshade, when the incident light is at the Brewster angle (a polarizing angle), the reflected light is completely polarized, and most of the transmitted light is P-polarized light.

As shown in fig. 10, according to brewster's law:

can calculate i₀According to the principle of the Brewster angle, the reflection of the P-polarized light is lower than that of the S-polarized light at a large range of angles near the Brewster angle, when the lampshade is installed and used, the angle of incident light is controlled, the horizontal polarized light can be blocked preferentially, and then the harmful light is blocked effectively. The inner surface of the lampshade is provided with a plurality of arc-shaped grooves which are sequentially connected, the frequency of light rays emitted by the same light source is the same, when the light rays pass through the inner surface of the lampshade, due to the polarization and reflection of the light rays, the light rays can generate diffraction action, the refractive indexes of high-energy blue light and harmful light are different, and after repeated polarization interference, the high-energy blue light and the harmful light are mostly blocked inside the lampshade and cannot be penetrated out through the lampshade.

As shown in fig. 11, the white light is a multi-color light, when the white light passes through the triple prism, monochromatic lights of different colors are displayed on the light screen due to different refractive indexes of the monochromatic lights, and the refractive indexes are sequentially increased from red to blue. Each circular arc structure of the photobiont safety eye-protecting lampshade can be similar to two triangular prisms, when light irradiates the lampshade, the high-energy blue-violet light has high refractive index and large deflection angle, so that blue light below 425nm cannot enter human eyes, and the high-energy blue light is prevented from damaging the human eyes.

Example 6

The present embodiment is described with reference to embodiment 1, and in this embodiment, the optical biological safety eye-protecting lamp based on the lampshade for biological safety eye-protecting by polarized interference light according to the present embodiment includes a lampshade 1, a lamp holder, and a light source, where the light source is surrounded by the lampshade 1, and the lampshade 1 is fixed on the upper portion of the lamp holder.

Claims

1. The utility model provides a biological safety eyeshield lamp shade of polarization interference light which characterized in that, lamp shade (1) include a plurality of convex lens (2), a plurality of convex lens (2) are installed in order.

2. The lampshade of claim 1, wherein the convex lenses (2) are strip-shaped convex lenses with the same length, and the strip-shaped convex lenses are parallel to each other and are sequentially arranged.

3. The lampshade of claim 2, wherein the lampshade (1) is flat or curved.

4. The lampshade of claim 1, wherein the plurality of convex lenses (2) are rectangular-shaped convex lenses with sequentially increasing side lengths, the rectangular-shaped convex lenses have the same transverse-longitudinal ratio, and the rectangular-shaped convex lenses are sequentially arranged from inside to outside.

5. The lampshade of claim 1, wherein the convex lenses (2) are circular convex lenses with sequentially increasing radii, and the circular convex lenses are sequentially installed from inside to outside and concentrically arranged.

6. The biohazard safety eye-protecting lampshade with polarized interference light according to claim 4 or 5, characterized in that the lampshade (1) has a rectangular, circular or circular shape.

7. The cover of biological safety eye-protecting lampshade of polarized interference light according to claims 1-5, characterized in that the plurality of convex lenses (2) are polystyrene convex lenses with refractive index of 1.59-1.60.

8. The cover of claim 7, wherein the convex lens (2) has an arc angle of 57.99 °.

9. The cover for biologically protecting eyes by using polarized interference light according to claim 1, wherein the edge of the cover (1) is further provided with a fixing portion (3).

10. An eye protection lamp for biological safety based on the lampshade for biological safety of polarized interference light according to any one of claims 1 to 9, characterized in that the lamp comprises a lampshade (1), a lamp holder and a light source, wherein the light source is surrounded by the lampshade (1), and the lampshade (1) is fixed on the upper part of the lamp holder.