CN101949513A - Light adjustable LED device and LED dimming method - Google Patents

Abstract

The invention discloses a light adjustable LED device and an LED dimming method which dims light by using the device. The device comprises an adjusting bracket, a sleeve, a reflection cup, a screw, a spring washer and a fixing plate, wherein the adjusting bracket is fixed on the outer surface of the sleeve; the reflection cup is adhered in the sleeve, and is put in a hole of the fixing plate in right front of the LED; the spring washer is arranged between the adjusting bracket and the fixing plate; and the screw is fixed on the fixing plate through the hole on the adjusting bracket and an intermediate hole of the spring washer. The LED dimming method comprises the following steps: connecting the power supply of the LED; adjusting the screw; leading the reflection cup to move up and down relative to the LED; stopping adjusting the screw and maintaining the position when light intensity reaches the maximum value; adjusting the screw to lead the shaft of the reflection cup to perform certain offset; and maintaining the state when a required position is achieved. The device and the method have the advantages that the light effect of single LED can be exerted maximally, and the light intensity maximum point of each LED is concentrated to the same point.

Description

A kind of LED matrix of tunable optical and LED light-dimming method

[technical field]

The invention belongs to the electric light source field, particularly a kind of LED matrix of tunable optical and LED light-dimming method.

[background technology]

LED is as the green illumination product, has advantage such as low in energy consumption, that the life-span is long and obtains more and more widely application.Especially great power LED progressively substitutes traditional lighting source in fields such as urban road, heavy construction, plaza lightings.Also be used widely in military domain simultaneously, in recent years, novel opportunity of combat alighting run illuminator is with regard to the active adoption high-power LED illumination.Meet or exceed the luminous intensity of conventional lighting sources, just must adopt a plurality of LED synthetic.But because there is strict requirement in system to the size of light source, that can not do is very big, and this has just limited the usage quantity of LED.Under limited LED illuminator prerequisite, reach higher center luminous intensity, just single LED luminous intensity must be transferred to maximum, simultaneously all LED luminous intensity maximum points are focused on a bit.At present, though existing multiple-in-one LED reflector in design, can accomplish, have mismachining tolerance, also have rigging error in addition between reflector and the LED, so in real process, be difficult to accomplish each LED luminous intensity maximum point is focused on a bit.

[summary of the invention]

Technical problem to be solved by this invention be to provide a kind of single LED luminous intensity is transferred to maximum and all LED luminous intensity maximum points are focused on any tunable optical LED matrix and use this device to carry out the LED light-dimming method of light modulation.

The present invention is what one of to solve the problems of the technologies described above by the following technical programs: a kind of LED matrix of tunable optical, comprise the adjustment support, sleeve, reflector, screw, spring washer, and fixed head, described adjustment support is 3, be fixed on the outer surface of sleeve by spot welding, 3 adjustment supports evenly distribute, each is adjusted on the support and has the hole, described reflector is placed in the sleeve, and it is bonding firmly with reflector and sleeve to stick with glue agent, have circular hole in the middle of the described fixed head, the diameter of circular hole is placed in the circular hole of fixed head and is in the dead ahead of LED less than the described reflector of the diameter on reflector top greater than the diameter of reflector bottom, on the described fixed head on the corresponding described adjustment support position in hole offer three screws, described spring washer has three, be placed on respectively and adjust between support and the fixed head, described screw is 3, passes the hole of adjusting on the support respectively, the spring washer interstitial hole is fixed on the fixed head.

The present invention be solve the problems of the technologies described above by the following technical programs two: a kind of LED light-dimming method comprises the steps:

Step 1: at first assemble the LED matrix of the tunable optical of technique scheme, connect the power supply of LED then, regulate the screw on 3 adjustment supports, reflector is moved up and down with respect to LED;

Step 2: when light intensity reaches maximum, stop adjustment screw and keep this invariant position;

Step 3: the screw of regulating wherein makes the axle of reflector do certain skew;

Step 4: when adjusting to the position that needs, remain unchanged, and stick with glue agent with screw, spring washer and adjust support and bond together.

Advantage of the present invention is: single led light efficiency is performed to maximum, by regulating each LED light intensity maximum point is focused on a bit simultaneously, realize high brightness, and can adapt to adverse circumstances.

[description of drawings]

Figure 1A cuts open structural representation for the LED matrix side of a kind of tunable optical provided by the invention.

Figure 1B is the LED matrix vertical view of a kind of tunable optical provided by the invention.

Fig. 2 is the flow chart of a kind of LED light-dimming method provided by the invention.

[specific embodiment]

With reference to Figure 1A and Figure 1B, represent the structural representation of the LED matrix of a kind of tunable optical provided by the invention, the LED matrix of this tunable optical comprises adjusts support 1, sleeve 2, reflector 3, screw 4, spring washer 5, and fixed head 6.

Described adjustment support 1 is 3, is fixed on the outer surface of sleeve 2 by spot welding, and 3 adjustment supports 1 evenly distribute, and each is adjusted and has hole (figure indicates) on support 1.Described reflector 3 is placed in the sleeve 2, and it is bonding firmly with reflector 3 and sleeve 2 to stick with glue agent.Have circular hole in the middle of the described fixed head 6, the diameter of circular hole is greater than the diameter of reflector 3 bottoms, less than the diameter on reflector 3 tops.Described reflector 3 is placed in the circular hole of fixed head 6 and is in the dead ahead of LED 7.On the described fixed head 6 on the corresponding described adjustment support 1 position in hole offer three screws (figure indicate).Described spring washer 5 has three, is placed on respectively to adjust between support 1 and the fixed head 6, and described screw 4 is 3, passes hole, spring washer 5 interstitial holes adjusted on the support 1 respectively and is fixed on the fixed head 6.

Please represent the flow chart of a kind of LED light-dimming method provided by the invention simultaneously with reference to Fig. 2, this LED light-dimming method may further comprise the steps:

Step 1: connect the power supply of LED 7, regulate the screw 4 on 3 adjustment supports 1, when tightening screw 4 clockwise, reflector 3 moves down with respect to LED 7, when unscrewing screw 4 counterclockwise, reflector 3 moves up with respect to LED 7, thereby reflector 3 is moved up and down with respect to LED 7;

Step 2: when light intensity reaches maximum, stop adjustment screw 4 and keep this invariant position;

Step 3: owing to also need light beam is done certain skew, certain screw 4 of regulating again wherein according to the needs of actual shifts makes the axle of reflector 3 do certain skew, tighten which screw, then the axle of reflector 3 promptly is offset towards the direction of this screw, unscrew which screw, then the axle of reflector 3 promptly departs from the direction of this screw;

Step 3: when adjusting to the position that needs, remain unchanged, and stick with glue agent with screw 4, spring washer 5 and adjust support 1 and bond together.

Though more than described the specific embodiment of the present invention; but being familiar with those skilled in the art is to be understood that; our described specific embodiment is illustrative; rather than be used for qualification to scope of the present invention; those of ordinary skill in the art are in the modification and the variation of the equivalence of doing according to spirit of the present invention, all should be encompassed in the scope that claim of the present invention protects.

Claims (2)

1. the LED matrix of a tunable optical, it is characterized in that: comprise the adjustment support, sleeve, reflector, screw, spring washer, and fixed head, described adjustment support is 3, be fixed on the outer surface of sleeve by spot welding, 3 adjustment supports evenly distribute, each is adjusted on the support and has the hole, described reflector is placed in the sleeve, and it is bonding firmly with reflector and sleeve to stick with glue agent, have circular hole in the middle of the described fixed head, the diameter of circular hole is greater than the diameter of reflector bottom, diameter less than the reflector top, described reflector is placed in the circular hole of fixed head and is on the described fixed head in dead ahead of LED on the corresponding described adjustment support position in hole offers three screws, and described spring washer has three, is placed on respectively to adjust between support and the fixed head, described screw is 3, passes the hole of adjusting on the support respectively, the spring washer interstitial hole is fixed on the fixed head.

2. a LED light-dimming method is characterized in that: comprise the steps:

Step 1: the outer surface that three adjustment supports is fixed on sleeve by spot welding, 3 adjustment supports evenly distribute, each is adjusted on the support and has the hole, one reflector is placed in the sleeve, and it is bonding firmly with reflector and sleeve to stick with glue agent, in the middle of a fixed head, open circular hole, the diameter of circular hole is greater than the diameter of reflector bottom, diameter less than the reflector top, described reflector is placed in the circular hole of fixed head and is in the dead ahead of LED, on the described fixed head on the corresponding described adjustment support position in hole offer three screws, use three spring washers to be placed on respectively and adjust between support and the fixed head, re-use 3 screws and pass the hole of adjusting on the support respectively, the spring washer interstitial hole is fixed on the fixed head;

Connect the power supply of LED, regulate the screw on 3 adjustment supports, reflector is moved up and down with respect to LED;

Step 2: when light intensity reaches maximum, stop adjustment screw and keep this invariant position;

Step 3: the screw of regulating wherein makes the axle of reflector do certain skew;

Step 4: when adjusting to the position that needs, remain unchanged, and stick with glue agent with screw, spring washer and adjust support and bond together.

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