CN110440220B

CN110440220B - Reticle optical assembly for reducing glare

Info

Publication number: CN110440220B
Application number: CN201810415738.2A
Authority: CN
Inventors: 陈有同; 蔡昀融
Original assignee: Ts'tai Tzu New Tech Co ltd
Current assignee: Ts'tai Tzu New Tech Co ltd
Priority date: 2018-05-03
Filing date: 2018-05-03
Publication date: 2021-02-12
Anticipated expiration: 2038-05-03
Also published as: CN110440220A

Abstract

A light shield optical component includes an optical component; wherein the optical component has a light incident surface and a light exit surface arranged opposite to the light incident surface, and a plurality of micron grid structures are arranged on the light exit surface, and the micron grid structures are formed by connecting a plurality of structures of two inclined surfaces sandwiching a plane; thereby, the inclined surfaces refract horizontally polarized light emitted by a light source, circulate in the micron grid structure, and integrate with vertically polarized light emitted by the light source, and then emit the optical component together, thereby reducing the glare generated by the bad horizontally polarized light and further increasing the lumen.

Description

Reticle optical assembly for reducing glare

Technical Field

The present invention relates to an optical assembly for reducing glare, and more particularly, to an optical assembly for reducing glare from a light source and increasing lumens.

Background

Glare is a phenomenon in which the brightness distribution is not appropriate, the magnitude of the brightness variation is too large, or extreme contrast in space and time occurs so as to cause discomfort or reduce the ability to observe important objects, or both, and factors causing glare include the brightness, position, appearance size and number of light sources. The light emitted from the light source is perpendicular to the light source, and the horizontally polarized light is the most common glare produced by the conventional lamp.

There is also a filter outside the light source to filter the horizontal polarized light and let the vertical polarized light pass through, or a layer of coating such as light-blocking powder is coated on the lampshade to block the glare.

Therefore, the inventor of the present invention has disclosed taiwan patent I608192 in the future, which discloses a mask optical assembly capable of reducing glare, so as to improve the above-mentioned disadvantages of the prior art. The invention provides a mask optical component for reducing glare, which is further improved aiming at the invention, not only has original functions, but also increases the capacity of reducing glare and improving lumen.

Disclosure of Invention

It is therefore a primary objective of the present invention to provide a mask optical assembly for reducing glare that reduces the glare emitted from a light source and increases the emitted lumens.

The technical means is that the optical assembly of the light shield is provided with a light inlet surface and a light outlet surface which is opposite to the light inlet surface, wherein the light outlet surface is provided with a plurality of micron grating structures which are connected by a plurality of structures of which two inclined surfaces sandwich a plane; the inclined planes refract the horizontal polarized light emitted by a light source and circulate in the micron grating structure, so that the horizontal polarized light is integrated with the vertical polarized light emitted by the light source and then emitted out of the optical component together, and the bad horizontal polarized light is reduced by refracting the horizontal polarized light, and the circulation of the horizontal polarized light is combined with the vertical polarized light of the light source and then emitted out of the optical component and is not absorbed by a photomask, so that the lumen can be further increased.

Drawings

Fig. 1 is a schematic cross-sectional structure of the present invention.

Fig. 2 is a schematic view of the usage state of the present invention.

FIG. 3 is a schematic view of a recycling ray according to the present invention.

Fig. 4 is a schematic view of another usage state of the present invention.

Fig. 5 is a top view of the structure of the present invention.

FIG. 6 is a top view of another structure of the present invention.

Fig. 7 is a cross-sectional view of another embodiment of the present invention.

Description of the reference numerals

10 optical assembly

100 incident surface 101 emergent surface

11 grid structure

111 inclined plane 112 plane

113V groove opening 114 recess

20 light source

21 vertically polarized light ray 22 horizontally polarized light ray

30 light guide plate

Angle of rotation

Height of H1 slope

Width of the W1 plane W2 width of the grid structure.

Detailed Description

The technical solution in the embodiments of the present invention is clearly and completely described below with reference to the drawings in the embodiments of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

The invention relates to a light shield optical component for reducing glare, please refer to fig. 1, a light shield optical component 10 of the invention has a smooth light incident surface 100 and a smooth light emergent surface 101 opposite to the light incident surface 100, and the light shield optical component 10 is provided with a plurality of micron grid structures 11, each grid structure 11 has two opposite inclined surfaces 111 at the light emergent surface 101, a plane 112 is arranged between the inclined surfaces 111, the plane 112 can be an acute angle or a plane, because the complete acute angle is not easy to be achieved technically, the range of the external circle radius R of the acute angle is 0.01-0.7 mm, and a V-groove opening 113 is arranged between each grid structure 11; moreover, the grating structure 11 has a concave portion 114 on the light incident surface 100, and a distance between a concave depth H2 of the concave portion 114 and a horizontal plane is 0.02mm to 0.08 mm.

Referring to fig. 1 again, the height of the slopes 111 is H1, the width of the plane 112 is W1, the width of each grating structure 11 is W2, the width of the V-groove opening 113 is V, and the angle between each grating structure 11 is; wherein the length of W1 ranges from 2% to 79% of V, the length of W1 ranges from 2% to 50% of W2, the height of H1 ranges from 30% to 75% of W2, the height of H1 ranges from W1 ≧ 100%, 70 degrees to 110 degrees, the optimal length of W1 ranges from 0.01mm to 0.14mm, the optimal length of W2 ranges from 0.02mm to 2.9mm, and the optimal length of H1 ranges from 0.02mm to 0.7 mm; the mask optical assembly 10 of the present invention is made of transparent plastic material, and is formed by extrusion or injection molding, and the penetrating power is more than 60%, wherein the transparent plastic material can be PS, PC, PP, MS, acryl, etc.; the light incident surface 100 and the light emitting surface 101 may also be AG atomized surfaces processed by AG (anti glare) atomization, so as to shield the light source such as a bulb, a lamp tube or an LED lamp behind the optical assembly 10.

Referring to fig. 2, a light source 20 is disposed at one side of the light incident surface 100, when the light source 20 is incident from the light incident surface 100, the transmittance of the light is 30% to 55%, and when the light source 20 is incident from the light emergent surface 101, the transmittance of the light source 20 is 80% to 100%, wherein the light source 20 generates a vertically polarized light 21 and a horizontally polarized light 22, respectively, and the vertically polarized light 21 is incident from the light incident surface 100 and then is emitted from the plane 112 of the light emergent surface 101.

Referring to fig. 3, when the horizontally polarized light 22 enters the mask optical element 10 from the light incident surface 100, the horizontally polarized light 22 first contacts the inclined surfaces 111 to be refracted for the first time and then emits to the opposite inclined surface 111, so that the horizontally polarized light 22 is refracted for the second time, and the horizontally polarized light 22 is emitted to the light incident surface 100 by the second refraction, because of the angle relationship of the inclined surfaces 111, the horizontally polarized light 22 is not emitted to the light incident surface 100 linearly, but is emitted to the vertically polarized light 21 obliquely, so that the horizontally polarized light 22 after multiple refractions is combined with the vertically polarized light 21, and then is emitted from the plane 112.

Referring to fig. 2 and 3, the horizontal polarized light 22 is refracted by the inclined planes 111, so that the glare formed by the horizontal polarized light 22 exiting the mask optical assembly 10 is reduced, and the horizontal polarized light 22 is integrated with the vertical polarized light 21 by multiple refractions, so as to further improve the emitted lumens.

Referring to FIG. 4, the light source 20 can be incident from the side of the optical assembly 10, and the incident light source 20 is guided to be incident into the mask optical assembly through a light guide plate 30 made of transparent plastic material; the transparent plastic material of the light guide plate 30 may be PS, PC, PP, acryl, or the like.

Referring to fig. 5 and 6, the shape of the grid structures 11 is not a limitation of the present invention, and may be polygonal or conical.

Referring to FIG. 7, the light incident surface 100 of the mask optic 10 can be planar without the recessed portion 114 (see FIG. 1).

It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all 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.

Claims

1. A kind of light cover optical assembly used for reducing glare, characterized by that, it is made up of multiple micron grid structures, have smooth light incoming surface and one and light incoming surface set up smooth light outgoing surface opposite to each other, the grid structure has two relative inclined planes on the light outgoing surface, there is a level between these inclined planes, characterized by that:

a V-groove opening is arranged between the grating structures, the length (W1) of the plane is in the range of 2-79% of the V-groove opening, the length (W1) of the plane is in the range of 2-50% of the width (W2) of the grating structure, the height (H1) of the inclined plane is in the range of 30-75% of the width (W2) of the grating structure, the height (H1) of the inclined plane is more than 100% of the length (W1) of the plane, and the angle of the V-groove opening is 70-110 degrees;

wherein, the length (W1) of the plane is 0.01mm to 0.14mm, the height (H1) of the inclined plane is 0.02mm to 0.7mm, and the width (W2) of the grating structure is 0.02mm to 2.9 mm.

2. The mask optic assembly according to claim 1, wherein the plane is an acute angle with a radius of a circumscribed circle in the range of 0.01-0.7 mm.

3. The mask optic assembly according to claim 1, wherein the grating structures have an outer shape selected from any one of polygonal shapes and conical shapes.

4. The mask optic assembly according to claim 1, wherein a light source incident on the grating structures generates a vertically polarized light and a horizontally polarized light, respectively, the horizontally polarized light passing through the inclined planes.