CN204100132U - Lens of car light - Google Patents

Abstract

The utility model discloses a kind of lens of car light, comprise an outer portion, be positioned at axis of centres radial direction, its rear has incidence surface, and corresponding incidence surface is projection light guide section forwards, has plane of refraction outside this light guide section; One central portion, being located in outer portion and being connected with light guide section, this central portion has spaced front surface, rear surface, and front surface outer rim is connected with plane of refraction, and rear surface arranges multiple groove be recessed into toward the front.The some light entering light guide section by outer portion incidence surface by this can be appeared by plane of refraction, the some light path meeting the ray that is all-trans can towards central portion direction, this light enters groove location can optically focused, making to show that the groove location of this central portion forms point source of light effect by seeing outside car light, the utility model being had and saves assembly cost and energy-conservation effect.

Description

Lens of car light

Technical field

The utility model relates to a kind of car light, refers to a kind of lens of car light especially.

Background technology

Existing car light generally arranges illuminator in lamp housing, and arranges lens in lamp housing front, and the light source that illuminator is launched can penetrate these lens generation car light illumination effect.

Car light novel at present often uses LED for illuminator, in order to increase the illumination effect often multiple LED of spread configuration on car light, each LED light line can be launched simultaneously by lens of car light, and the luminous visual effect of multiple point-like that can produce corresponding LED arrangement position.

But namely each point source of light of previous designs must adopt a corresponding LED, the disappearance that LED component cost increases and power consumption increases of each respective amount will be caused when the more point source of light of light fixture of car.

Utility model content

The purpose of this utility model is the deficiency of existing car light, provides a kind of lens of car light saved luminescence component cost and have energy-saving effect.

In order to reach above-mentioned purpose, solution of the present utility model is:

A kind of lens of car light, comprising: an outer portion, be positioned at axis of centres radial direction, its rear has incidence surface, and corresponding incidence surface is projection light guide section forwards, has plane of refraction outside this light guide section; One central portion, to be located in outer portion and to be connected with light guide section, this central portion has spaced front surface, rear surface, front surface outer rim is connected with plane of refraction, rear surface arranges multiple groove recessed toward the front, the some light being entered light guide section by outer portion incidence surface is appeared by plane of refraction, and some light path enters groove location towards central portion direction.

The forward and backward surface corresponding axis of centres vertical direction of described central portion is parallel each other.

Described plane of refraction cross section is straight line.

Described outer portion is be cylindrical ring body around the axis of centres, and corresponding axis of centres diameter is gradually little toward the front by rear for the plane of refraction of this outer portion.

The incidence surface rear position of described outer portion arranges the illuminator of multiple circular array, forms annular luminous district when each illuminator fractional transmission light appears via plane of refraction, and each groove optically focused of central portion forms point-like arrangement luminous zone.

Described illuminator is LED.

After adopting said structure, the utility model lens of car light must not produced by a corresponding illuminator because of each groove location point source of light of central portion, can significantly reduce assembly cost, and can reduce energy loss.The each groove of central portion can be easy to arrange various spread geometry and form correspondingly-shaped point source of light, can be easy to shaping manufacture, and must not arrange each position as existing mode, can have a better car light applicability.

The utility model arranges multiple circular array illuminator in the rear position of lens incidence surface, can appear via plane of refraction and form annular luminous district after each illuminator radiating portion light enters light guide section, the light that part meets total reflection condition can enter central portion through plane of refraction turnover, make each groove of central portion can optically focused and formed point-like arrangement luminous zone, forming outer shroud, central authorities all can be luminous, there is better car light luminescence sight and show effect, and the situation in the complete dark cavity of car light central authorities can not be produced.

Accompanying drawing explanation

Fig. 1 is front perspective view of the present utility model;

Fig. 2 is rear perspective view of the present utility model;

Fig. 3 is sectional view of the present utility model;

Fig. 4 is the utility model LED setting position schematic diagram;

Fig. 5 is the luminous schematic diagram of the utility model LED.

Wherein:

Lens of car light 1 outer portion 11 central portion 12

Incidence surface 111 light guide section 112 plane of refraction 113

Front surface 121 rear surface 122 groove 123

Axis of centres A angle theta.

Detailed description of the invention

In order to explain the technical solution of the utility model further, below by specific embodiment, the utility model is elaborated.

Refer to Fig. 1 to Fig. 3, the utility model lens of car light 1 comprises outer portion 11, central portion 12.

This outer portion 11 is positioned at axis of centres A radial direction and is cylindrical ring body around axis of centres A, the rear of outer portion 11 has incidence surface 111, corresponding incidence surface 111 forwards projection light guide section 112, have outside this light guide section 112 by the rear plane of refraction 113 that corresponding axis of centres A diameter is gradually little toward the front, plane of refraction 113 cross section is straight line.

This central portion 12 to be located in outer portion 11 and to be connected with light guide section 112, this central portion 12 tool and tool vertical with axis of centres A be the front surface 121 of parallel interval, rear surface 122 each other, front surface 121 outer rim is connected with plane of refraction 113, front surface 121 and plane of refraction 113 have setting angle theta, and rear surface 122 arranges multiple groove 123 recessed toward the front.

Refer to Fig. 4, Fig. 5, the utility model arranges multiple circular array illuminator 2(as LED in the rear position of lens 1 incidence surface 111), can appear via plane of refraction 113 and form annular luminous district after each illuminator 2 radiating portion light L1 enters light guide section 112, the light L2 that part meets total reflection condition can enter central portion 12 through plane of refraction 113 turnover, make each groove 123 of central portion 12 can optically focused and formed point-like arrangement luminous zone, form outer shroud, central authorities all can be luminous, there is better car light luminescence sight and show effect, and the situation in the complete dark cavity of car light central authorities can not be produced.Make the utility model car light can be suitable for as tail-light, day portable lighter or other positions use, better light-emitting caution effect is provided.

Plane of refraction 113 and central portion 12 front surface 121 angle theta of the utility model lens of car light 1 can have different designs on demand, the light entering central portion 12 can be increased when this angle theta is less, make the point source of light of each groove 123 brighter, outer portion 11 ring-type light source can be made brighter when this angle theta is larger, like this, the utility model has different design effects.

The utility model lens of car light 1 must not produced by a corresponding illuminator 2 because of each groove 123 position point source of light of central portion 12, can significantly reduce assembly cost, and can reduce energy loss.The each groove of central portion 12 123 can be easy to arrange various spread geometry and form correspondingly-shaped point source of light, can be easy to shaping manufacture, and must not arrange each LED position as existing mode, can have a better car light applicability.

Above-described embodiment and graphic and non-limiting product form of the present utility model and style, any person of an ordinary skill in the technical field, to its suitable change done or modification, all should be considered as not departing from patent category of the present utility model.

Claims (6)

1. a lens of car light, is characterized in that, comprising: an outer portion, is positioned at axis of centres radial direction, and its rear has incidence surface, and corresponding incidence surface is projection light guide section forwards, has plane of refraction outside this light guide section; One central portion, to be located in outer portion and to be connected with light guide section, this central portion has spaced front surface, rear surface, front surface outer rim is connected with plane of refraction, rear surface arranges multiple groove recessed toward the front, the some light being entered light guide section by outer portion incidence surface is appeared by plane of refraction, and some light path enters groove location towards central portion direction.

2. lens of car light as claimed in claim 1, is characterized in that: the forward and backward surface corresponding axis of centres vertical direction of described central portion is parallel each other.

3. lens of car light as claimed in claim 1, is characterized in that: described plane of refraction cross section is straight line.

4. as the lens of car light in claim 1,2 or 3 as described in any one, it is characterized in that: described outer portion is for being cylindrical ring body around the axis of centres, and corresponding axis of centres diameter is gradually little toward the front by rear for the plane of refraction of this outer portion.

5. lens of car light as claimed in claim 4, it is characterized in that: the incidence surface rear position of described outer portion arranges the illuminator of multiple circular array, form annular luminous district when each illuminator fractional transmission light appears via plane of refraction, each groove optically focused of central portion forms point-like arrangement luminous zone.

6. lens of car light as claimed in claim 5, is characterized in that: described illuminator is LED.