CN218819936U - Polarized lens and illumination system with same - Google Patents

Abstract

The utility model relates to a LED lighting technology field, specific polarized lens and have its lighting system that says so, polarized lens, including the lens body, the bottom of lens body inwards caves in and forms the depressed part, and the opening part of depressed part goes into the perforation for light, and the top of depressed part forms the refracting surface, the lateral surface of lens body forms the plane of reflection, the top surface of lens body forms the plane of emergence, the normal of refracting surface and the normal of plane of emergence all with the optical axis skew of light source for the biggest orientation at light source optical axis direction and light intensity do not coincide, improve observer's comfort greatly, adopt this polarized lens to make its light intensity in light source optical axis direction for using TIR symmetry grading optical system's 72%, uncomfortable glare index is than using TIR symmetry grading optical system low 2, and the illumination degree of consistency degree wholly rises 5%.

Description

Polarized lens and illumination system with same

Technical Field

The utility model relates to a LED lighting technology field, specific polarized lens and have its lighting system that says so.

Background

The large and medium-sized stadiums are completed in succession all over the country, so that the large-sized sports can be conveniently watched by people, and good performance places can be provided for various large-sized cultural and sports activities. The existing main lighting in the medium and large stadiums mainly adopts a central symmetric TIR lighting system, and the lighting system has the following two defects: (1) In the installation mode, an inclined installation angle is generally selected, so that light rays are projected onto a use plane, if an athlete or a spectator is just positioned in the direction of the projection angle, the sight line of the spectator is overlapped with the direction of the optical axis of the illumination system, and at the moment, the eyes of the spectator are positioned at the point with the maximum light intensity, so that the discomfort is greatly enhanced. (2) The lamps and lanterns in the venue need the mounted position higher, in order to make by the plane illuminance up to standard that shines, therefore the lamps and lanterns half peak corner that uses can not be too big, and the facula size that low angle lighting system formed on the face that is shone is also less, for making up this point, generally need more lamps and lanterns of supporting to use to improve the illuminance degree of consistency in place.

Disclosure of Invention

In order to solve the above-mentioned problem that prior art exists, the utility model provides a polarized lens and have its lighting system, polarized lens through the setting respectively with the refracting surface and the emitting surface of the optical axis direction skew of light source, can deviate from the strongest direction of light intensity and light source optical axis center in lighting system, glare index obviously descends, makes simultaneously on the plane of being shone the light spot area grow, has improved the illumination degree of consistency in whole place, promotes the illumination travelling comfort.

In order to achieve the above object, an object of the present invention is to provide a polarized lens, including the lens body, the bottom of lens body inwards caves in and forms the depressed part, and the opening part of depressed part goes into the perforation for light, and the top of depressed part forms the refracting surface, the lateral surface of lens body forms the plane of reflection, the top surface of lens body forms the emitting surface, the normal of refracting surface and the normal of emitting surface all with the optical axis skew of light source.

Further, the normal of the refraction surface is oblique to the optical axis of the light source at a predetermined obtuse angle.

Preferably, the predetermined obtuse angle is 95-170 degrees.

Further, a normal of the exit surface is oblique to an optical axis of the light source at a predetermined acute angle.

Preferably, the predetermined acute angle is 10 to 30 degrees.

Further, the exit surface is a plane.

Further, the refraction surface is a free-form surface.

Furthermore, the reflecting surface is a continuous free-form surface and is integrally of a bowl-shaped structure.

Further, the lens body is any one optical medium of optical grade PC or PMMA or optical glass.

Another object of the present invention is to provide an illumination system, which includes the above-mentioned polarized lens.

The utility model provides a polarized lens, through refractive surface and the exit surface that sets up normal line and light source optical axis skew respectively, after the light source incidence, some light can pierce through the plane of reflection after going on the total reflection through the light source after going into the perforation and refract out via the exit surface skew, and another part light then refracts out behind the arrival exit surface behind the plane of refraction for the biggest direction at light source optical axis direction and light intensity does not coincide, improves observer's comfort greatly.

The utility model discloses an illumination system adopts this polarized lens to make its light intensity in light source optical axis direction for using the 72% of TIR symmetry grading optical system, and uncomfortable dazzles the optical system that the light index is than using TIR symmetry grading low 2, 5% of the whole rising of illuminance degree of consistency.

Drawings

Fig. 1 is a schematic structural diagram of the polarized lens of the present invention.

Fig. 2 is a schematic structural diagram of another angle of the polarized lens of the present invention.

Fig. 3 is a cross-sectional view of the polarized lens of the present invention.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Example 1.

As shown in fig. 1-3, the utility model provides a polarized lens, including lens body 1, the bottom of lens body 1 is inside sunken to form the depressed part, and the opening part of depressed part is gone into perforation 2 for light, and the top of depressed part forms refracting surface 3, lens body 1's lateral surface forms plane of reflection 4, lens body 1's top surface forms emitting surface 5, refracting surface 3's normal 7 and emitting surface 5's normal 8 all with the optical axis 6 skew of light source.

The utility model provides a polarized lens, after the light source incides, some light can pierce through reflecting surface 4 and carry out the total reflection after through the light source income perforation 2 and jet out via 5 partial refractions of exit surface, another part light then reachs 5 partial refractions of exit surface after via 3 partial refractions of refraction surface, through refraction surface 3 and the exit surface 5 that set up the optical axis 6 skew of normal line and light source respectively, make its direction at the optical axis 6 of light source not coincide with the maximum direction of light intensity, improve observer's comfort greatly.

In the present embodiment, in order to better enhance the comfort of the viewer and reduce the vertigo degree, the normal 7 of the refracting surface 3 is oblique to the optical axis 6 of the light source at a predetermined obtuse angle of 95-170 degrees, and the normal 8 of the exit surface 5 is oblique to the optical axis 6 of the light source at a predetermined acute angle of 10-30 degrees. The angle is set, effective polarization can be realized, and sufficient light utilization rate can be provided.

The exit surface 5 is a plane and forms a closed structure with the top of the reflecting surface 4, the refraction surface 3 is a free-form surface, the reflecting surface 4 is a continuous free-form surface, and the whole body is of a bowl-shaped structure.

Wherein the lens body is any one optical medium of optical grade PC or PMMA or optical glass.

Example 2.

This embodiment provides an illumination system, includes as embodiment 1 polarized lens, the utility model discloses an illumination lamps and lanterns adopts embodiment 1 polarized lens for its light intensity in light source optical axis direction is 72% for using TIR symmetry grading optical system, and uncomfortable dazzles the optical system that the light index is than using TIR symmetry grading and is low 2, 5% are raised to the illuminance degree of consistency whole.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also combinations between technical features in the above embodiments or in different embodiments are possible, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omission, modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. The polarized lens is characterized by comprising a lens body, wherein the bottom of the lens body is inwards recessed to form a recessed part, an opening of the recessed part is a light entrance hole, the top of the recessed part forms a refraction surface, the outer side surface of the lens body forms a reflection surface, the top surface of the lens body forms an exit surface, and the normal line of the refraction surface and the normal line of the exit surface are oblique to the optical axis of a light source.

2. The polarized lens of claim 1, wherein a normal line of the refractive surface is oblique to an optical axis of the light source at a predetermined obtuse angle.

3. The polarized lens of claim 2, wherein the predetermined obtuse angle is 95-170 degrees.

4. The polarizing lens of claim 1, wherein a normal line of the exit surface is oblique to an optical axis of the light source at a predetermined acute angle.

5. The polarized lens of claim 4, wherein the predetermined acute angle is 10-30 degrees.

6. The polarizing lens of claim 1, wherein the exit surface is planar.

7. The polarized lens of claim 1, wherein the refractive surface is a free-form surface.

8. The polarized lens of claim 1, wherein the reflective surface is a continuous free-form surface having an overall bowl-like configuration.

9. A polarizing lens as claimed in claim 1, characterized in that the lens body is any one of optical grade PC or PMMA or optical glass.

10. An illumination system comprising the polarizing lens according to any one of claims 1 to 9.

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