CN201539815U

CN201539815U - Lens structure

Info

Publication number: CN201539815U
Application number: CN200920174329.4U
Authority: CN
Inventors: 林宜洁; 何彦纬
Original assignee: Genius Electronic Optical Co Ltd
Current assignee: Genius Electronic Optical Co Ltd
Priority date: 2009-12-09
Filing date: 2009-12-09
Publication date: 2010-08-04
Anticipated expiration: 2019-12-09

Abstract

The utility model relates to a lens structure which comprises a platform. A light inlet surface and a light outlet surface are arranged in the opposite positions of the platform; a line outlet hole is formed at the bottom in the long-axis direction of the light inlet surface and can allow a mounting power supply to be wired; a groove is formed along the periphery of the light inlet surface to allow a water stop ring to be mounted; the light inlet surface is formed by a concave curved surface of a main ellipse; the concave curved surfaces of side ellipses are partially arranged on two sides of one end of the concave curved surface of the main ellipse; the light outlet surface is formed by the convex curved surfaces of a plurality of tangential ellipses or non-tangential ellipses; the light outlet surface is in left-right mutual symmetry in the long-axis direction of the light inlet surface, and in forward-backward asymmetry in the short-axis direction of the light inlet surface; and symmetrical longitudinal tangential surfaces are formed on two sides of the light outlet surface. By adopting the structure, an LED larger than more than 10mm can be accommodated on the light inlet surface; and the lens structure can enable the LED to be subject to full light distribution, so that the transverse maximum light intensity ranges from plus or minus 50 degrees to plus or minus 60 degrees, and the longitudinal maximum light intensity ranges from plus or minus 30 degrees to plus or minus 40 degrees.

Description

Lens arrangement

Technical field

The utility model relates to a kind of lens arrangement, refers to a kind of for the lens arrangement that holds greater than the light emitting diode more than 10 millimeters (LED) especially.

Background technology

The Taiwan patent application document that application number is 098129956, name is called optical lens, its exposure is provided with incidence surface and exiting surface in lens platform in relative outer face, this incidence surface is a concave curved surface with respect to the light path direct of travel, this exiting surface is a convex surface with respect to the light path direct of travel, and this incidence surface and exiting surface all are made up of a plurality of curved surface.

And this incidence surface comprises the first light inlet oval calotte and the second light inlet oval calotte that are tangent state; This exiting surface comprises the first bright dipping oval calotte and the second bright dipping oval calotte that are tangent state, and is positioned at the outside joint face that the relative outside of first and second bright dipping oval calotte is symmetry status.

This optical lens can be applicable to the LED of full width half-angle (FWHM) boundary between 90 degree are spent to 135 of lighting angle, through after the catadioptric, the angular brightness required value that can reach the LED road illuminating lamp is at vertical angle 60 degree, and horizontal angle 65 degree are the distribution place of luminous intensity maximum to the scope of 95 degree.Aforementioned lights intensity can be more than or equal to the usefulness of 300 brightness (cd)/light fixture luminous flux (klm).

Yet said lens itself does not have water-proof function; And its incidence surface lens can not be with the abundant luminous intensity distribution of LED, thereby can't reach horizontal maximum light intensity drops on ± 50 degree are between ± 60 degree, vertically maximum light intensity drop on+30 degree are between+40 degree.

The utility model content

Main purpose of the present utility model is to provide a kind of lens arrangement, and its feature comprises:

1, can hold greater than the ccontaining installation of LED more than 10 millimeters, and can supply ccontaining seal ring, have water-proof function so that it reaches.

2, lens can reach following effect with the abundant luminous intensity distribution of LED: the short-axis direction of incidence surface (X-axis) maximum light intensity can drop on ± 50 degree are between ± 60 degree, and the long axis direction of incidence surface (Y-axis) maximum light intensity can drop on+and 30 degree are between+40 degree.Aforementioned lateral (short-axis direction) is fit to the road luminous intensity distribution, and is equidirectional with garage; Vertically (long axis direction) then is to arrange in pairs or groups street lamp by the road, and it is skewed that the distribution of the light of its generation is bent arc, helps the uniformity on road central authorities and trackside limit to improve.

3, can make the power line installation of LED involve lens.

For achieving the above object, the utility model lens arrangement, it comprises:

Platform is provided with incidence surface in the bottom, and this incidence surface is made of main oblong fovea curved surface, and the part, both sides of this main oblong fovea curved surface one end is provided with the side oblong fovea curved surface of symmetry; And be provided with wire hole for the perforation that power supply wiring is installed in the bottom of described platform along the long axis direction of incidence surface, in addition, the bottom of described platform is formed with the groove for the installing seal ring along the incidence surface periphery;

Exiting surface, be located at external position relative on the described platform with described incidence surface, described incidence surface is shrouded fully, described exiting surface, form by a plurality of tangent oval convex surfaces and not tangent oval convex surface, and symmetrically, asymmetric mutually before and after being along the short-axis direction of described incidence surface about described exiting surface is along the long axis direction of described incidence surface, more and be formed with vertical tangent plane of symmetry in the both sides of described exiting surface.

Adopt said structure, make this lens arrangement not only have water-proof function, and this lens arrangement can help to improve the uniformity of road central authorities and the distribution of trackside marginal ray with the abundant luminous intensity distribution of LED.

Description of drawings

Fig. 1 looks isometrical drawing for the master of the utility model lens arrangement preferred embodiment.

Fig. 2 is the isometric cross-sectional view of Fig. 1.

Fig. 3 is the backsight isometrical drawing of the utility model lens arrangement preferred embodiment.

Fig. 4 is the face upwarding stereogram of the utility model lens arrangement preferred embodiment.

Fig. 5 is the front view of the utility model lens arrangement preferred embodiment.

Fig. 6 is the right view of the utility model lens arrangement preferred embodiment.

Fig. 7 is the vertical view of the utility model lens arrangement preferred embodiment.

Fig. 8 is along the cutaway view of A-A line among Fig. 7.

Fig. 9 is the upward view of the utility model lens arrangement preferred embodiment.

Figure 10 is along the cutaway view of B-B line among Fig. 9.

Description of reference numerals

10 platforms, 11 incidence surfaces

111 main oblong fovea curved surface 112 side oblong fovea curved surfaces

12 wire holes, 13 grooves

14 exiting surfaces, 141 tangent oval convex surfaces

142 tangent oval convex surface 143 tangent oval convex surfaces

The not tangent oval convex surface of 144 not tangent oval convex surfaces 145

15 vertical tangent plane 16 lockholes

17 spacing socles

The specific embodiment

Preferred embodiment illustrates in detail to the utility model in conjunction with the accompanying drawings.

To shown in Figure 10, be lens arrangement of the present utility model as Fig. 1, it comprises:

Platform 10, be provided with incidence surface 11 in the bottom, this incidence surface 11 is constituted by the main oblong fovea curved surface 111 more than 90% by accounting for entire area percentage, and this main oblong fovea curved surface 111 is provided with the side oblong fovea curved surface 112 (as Fig. 4, Fig. 8, Fig. 9 and shown in Figure 10) of symmetry in the front end both sides; And be provided with the wire hole 12 of perforation along the long axis direction of incidence surface 11 in the bottom, can be for the power supply wiring (not shown) be installed, in addition, the bottom is formed with groove 13 along incidence surface 11 peripheries, can be for installing seal ring (not shown).

Exiting surface 14, be located on the platform 10 external position relative with incidence surface 11, incidence surface 11 is shrouded fully, this exiting surface 14 is by a plurality of tangent oval convex surfaces 141 that are distributed in the centre position, 142,143, and be connected aforementioned a plurality of tangent oval convex surface 141,143 outer peripheral relatively not tangent oval convex surfaces 144,145 form, and exiting surface 14 is along long axis direction (the size indication line as shown in Figure 2: L of incidence surface 11, this long axis direction is a Y direction) be about symmetrically, asymmetric mutually before and after being along the short-axis direction (size indication line as shown in Figure 2: W, this short-axis direction are X-direction) of incidence surface 11.

In addition, be formed with vertically tangent plane 15 of symmetry in the both sides of exiting surface 14.

Can organize by said structure and to constitute inside and can hold cover for seal ring and hide, thereby lens arrangement with water-proof function, and can be with the abundant luminous intensity distribution of LED, short-axis direction (X-axis) maximum light intensity that reaches incidence surface drops on ± and 50 degree are between ± 60 degree, and long axis direction (Y-axis) maximum light intensity drops on+and 30 degree are between+40 degree.

In view of the above, after this lens arrangement provided the abundant luminous intensity distribution of LED, its short-axis direction is fit to the road luminous intensity distribution, and was equidirectional with garage; Its long axis direction then is to arrange in pairs or groups street lamp by the road, and it is skewed that the distribution of its light is bent arc, helps to improve the uniformity on road central authorities and trackside limit.

In addition, lens arrangement of the present utility model is provided with the wire hole 12 that runs through fully at its bottom predetermined direction, but direct installation of power supply source line involves.In addition, be distributed with a plurality of lockholes 16 in the periphery of platform 10, and be provided with the spacing socle 17 of symmetry in the precalculated position, bottom of platform, can the location be installed for being convenient to winding.

As shown in Figure 2, lens arrangement of the present utility model, in order diameters to be installed at least greater than the LED more than 10 millimeters in incidence surface 14 inside, special minor axis W with incidence surface 14 is made as 17.4 millimeters; Longitudinal axis L is made as 27 millimeters; High H is made as 13.5 millimeters.Average on aforementioned each size basis ± 2.5 millimeters or increase manyly, all should forgive in technical scope of the present utility model.

To sum up institute is old, only is preferred embodiment of the present utility model, is not to be used for limiting protection domain of the present utility model.Be that all equalizations of being done according to the utility model content change and modification, all should be included in the scope of the utility model patent protection.

Claims

1. lens arrangement, it includes: platform, and be respectively equipped with incidence surface and exiting surface at the relative position of described platform, it is characterized in that:

Described incidence surface is made of main oblong fovea curved surface; Described exiting surface is shrouded described incidence surface, it is made up of a plurality of tangent oval convex surfaces and not tangent oval convex surface, and it is symmetrically, asymmetric mutually before and after being along the short-axis direction of described incidence surface about described exiting surface is along the long axis direction of described incidence surface.

2. lens arrangement as claimed in claim 1 is characterized in that: the part, end both sides of described main oblong fovea curved surface is provided with the side oblong fovea curved surface of symmetry.

3. lens arrangement as claimed in claim 1 is characterized in that: described incidence surface is provided with for the wire hole that power supply wiring is installed along its long axis direction in the bottom.

4. lens arrangement as claimed in claim 1 is characterized in that: the bottom of described incidence surface is formed with the groove for the installing seal ring along its periphery.

5. lens arrangement as claimed in claim 1 is characterized in that: the both sides of described exiting surface are formed with vertical tangent plane of symmetry.

6. lens arrangement as claimed in claim 1 is characterized in that: described exiting surface is by a plurality of tangent oval convex surfaces that are distributed in the centre position, and the outer peripheral relatively not tangent oval convex surface that is connected described a plurality of tangent oval convex surfaces is formed.