CN213066006U - Uniform halogen line light source - Google Patents

Abstract

The utility model belongs to the technical field of the light source, especially, relate to line scanning formula halogen light source that chemistry detected usefulness specifically is an even halogen line light source, including power module, halogen light source module, anti-light cup, heat dissipation module and shell, power module respectively with halogen light source module the heat dissipation module is connected, halogen light source module sets up in the anti-light cup, anti-light cup erects in the mounting hole on the shell lateral wall, just anti-light cup the place ahead opening end makes the light of halogen light source module see through towards the shell outside, anti-light cup inner wall is the ellipsoid, heat dissipation module is located in the shell anti-light cup rear, heat dissipation module with shell fixed connection. The utility model has the advantages that: the light uniformity is good, the rapid large-area spectrum information acquisition can be realized, and the spectrum scanning requirement is met.

Description

Uniform halogen line light source

Technical Field

The utility model belongs to the technical field of the light source, especially, relate to line scanning formula halogen light source that chemical detection used specifically is an even halogen line light source.

Background

Halogen lamps inject a halogen gas such as iodine or bromine into a bulb. At high temperature, the evaporated tungsten filament and halogen perform chemical action, and the evaporated tungsten can be re-solidified on the tungsten filament to form balanced circulation, so that premature breakage of the tungsten filament is avoided. Halogen lamps have a wide and stable spectral characteristic, and thus are widely used in the fields of industrial detection, chemical analysis, medical detection, remote sensing spectroscopy, and the like. As application requirements change, the requirements for the light source spot also change. In spectrometer applications, a uniform halogen light source is required for scanning large-area images rapidly.

Halogen bulbs of various sizes and voltages and powers are currently available on the market, but there are few uniform halogen line light sources. The halogen lamp tube can be used as one of linear light sources, but because the halogen lamp emits light by utilizing filament heating, the heat productivity of the halogen lamp tube is extremely large, the halogen lamp tube is mostly applied to the heating field, the light intensity is weak, and the halogen lamp tube is not suitable for being used as a light source for spectral measurement. In addition, the lamp beads are arranged side by side at equal intervals, and then the reflector is integrally added, so that the lamp beads are arranged, the light efficiency converged at the middle part is more, the edges are fewer, the uniformity of a light source is poor, and the requirement of spectrum scanning is not met.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of above-mentioned prior art, the utility model provides an even halogen line light source can shine out even bar facula perpendicularly, and light homogeneity is good, can realize quick large tracts of land spectral information collection, has realized the quick scanning and the detection and analysis of picture in application fields such as spectral detection.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an even halogen line light source, its characterized in that includes power module, halogen light source module, reflection of light cup, heat dissipation module and shell, power module respectively with halogen light source module the heat dissipation module is connected, halogen light source module sets up in the reflection of light cup, reflection of light cup sets up in the shell in a row, reflection of light cup placing direction with the shell lateral wall is perpendicular, just reflection of light cup the place opening end of place makes the light of halogen light source module see through towards the shell outside, reflection of light cup inner wall is the ellipsoid, heat dissipation module is located in the shell, reflection of light cup rear, heat dissipation module with shell fixed connection.

Preferably, the distance between two adjacent reflecting cups is such that the halogen light source module presents a uniform and non-obvious overlapping spot on the plane at the required irradiation distance.

Preferably, the shell comprises an upper shell and a lower shell, the side walls of the upper shell and the lower shell are correspondingly provided with a plurality of arc-shaped structures and form a plurality of mounting holes, the outer side of the reflection cup is provided with grooves matched with the arc-shaped structures along the circumferential direction, and the reflection cups are embedded into the mounting holes in rows.

In order to make the installation of the light reflecting cup more stable, preferably, the upper shell and the lower shell are respectively provided with an installation plate parallel to the side wall, and the installation plate is provided with an arc structure corresponding to the position of the side wall.

Preferably, the number of the mounting holes is the same as the number of the reflection cups.

Preferably, the halogen light source module is fixedly connected with the reflecting cup through ceramic sealant.

Preferably, the halogen light source module is a halogen bead with a waveband of 400-2500 nm.

Preferably, the power supply module is a voltage-adjustable power supply module.

Preferably, the heat dissipation module is a plurality of fans, and the fans are located 5-10 mm behind the reflection cup.

Preferably, the fan is fixed in the shell in a limiting manner through L-shaped clamping grooves formed in the upper shell and the lower shell.

The utility model has the advantages that: the inner wall of the reflection cup is designed into an ellipsoid, and the distance between the reflection cups is adjusted, so that the halogen light source module irradiated by the reflection cup presents uniform and non-overlapping circular light spots at the required distance, the obtained light is good in uniformity, rapid large-area spectrum information collection can be realized, and the spectrum scanning requirement is met. The utility model discloses a structure formation halogen line light source that simple halogen single lamp was arranged, this design simple structure, easy realization and cost are lower, have saved even worn-out fur and scattering film, have avoided the loss of light energy again simultaneously. The proposal of the design of the halogen line light source provides a new thinking for the manufacture of the halogen line light source and creates a new possibility for realizing the spectral analysis of pictures in the spectral field.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a top view of the lower housing of the present invention.

In the figure, the lamp comprises a power supply module 1, a light reflecting cup 2, a fan 3, a halogen small lamp bead 4, an upper shell 5, a lower shell 6, a groove 7, an arc-shaped structure 8 and an L-shaped clamping groove 9.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

As shown in fig. 1, the utility model provides an even halogen line light source, including power module 1, the halogen light source module, anti-light cup 2, heat radiation module and shell, power module 1 respectively with the halogen light source module, heat radiation module is connected, the halogen light source module sets up in anti-light cup 2, anti-light cup 2 erects in the shell, anti-light cup 2's installation direction is perpendicular with the shell lateral wall, and 2 the place ahead opening end of anti-light cup is towards the shell outside, the light that makes the halogen light source module sees through, heat radiation module is located the shell, anti-light cup 2 rear, heat radiation module and shell fixed connection. The distance of the reflecting cup 2 is such that the halogen light source module presents a uniform, non-overlapping spot on the plane at the required irradiation distance. The halogen light source is further described below.

In order to make the installation of the reflective cup 2 more stable, two installation plates parallel to the side walls are respectively arranged in the upper shell 5 and the lower shell 6, and arc-shaped structures 8 corresponding to the side walls are also arranged on the installation plates and used for clamping the reflective cup 2 together with the arc-shaped structures 8 on the side walls of the upper shell 6 and the lower shell 6, as shown in fig. 2.

The halogen light source module of the embodiment selects the halogen small lamp beads 4 with the wave band of 400-2500nm, and the halogen small lamp beads 4 are light sources which do not have Lens lamp holders and emit divergent optical fibers. The light emitting device emits divergent light after being electrified, is arranged inside the reflection cup 2 and used for spectrum detection, and the brightness can be adjusted by adjusting the voltage of the power supply module 1. The halogen small lamp bead 4 is fixedly connected with the reflecting cup 2. Before the halogen small lamp beads 4 are fixed with the reflection cup 2, the focusing positions of the halogen small lamp beads 4 in the reflection cup 2 are adjusted, so that the halogen small lamp beads 4 present uniform circular light spots at 0.5M (or other required distances), and after the positions are determined, the positions of the halogen small lamp beads 4 and the reflection cup 2 are fixed by using ceramic sealant (or other high-temperature-resistant glue).

The number of the halogen bulbs 4 and the reflecting cups 2 is adjusted according to the width of the object to be illuminated, so that the purpose of adjusting the width of the line light source is achieved.

The power module 1 is a voltage-adjustable power module 1 and is used for supplying power and stabilizing voltage for the power supply and the heat dissipation module. The determination of the power type requires the determination of the lamp voltage and the connection manner and the voltage of the cooling fan 3.

The light reflecting cup 2 is used for collecting, converging and shaping light rays diverged by the small halogen lamp beads 4, so that the light rays are diverged within a specific field angle range, the light reflecting cup 2 used in the embodiment enables a light beam divergence angle to be small (smaller than 10 degrees), the inner wall of the light reflecting cup 2 is designed into an ellipsoid, and therefore light spots irradiated by the small halogen lamp beads 4 at a certain distance are more uniform, and uniform light spots are obtained. According to the information such as the light intensity and the divergence angle of the single lamp shaped by the reflector 2, a plurality of halogen lamps with the reflector 2 are simulated and paralleled by utilizing the lighting tools software known by the technicians in the field, and the space between the halogen lamps is adjusted to enable the light spots emitted after the halogen lamps are paralleled to be uniform strip-shaped light spots.

In this embodiment, the distance between the reflective cups 2 may also be determined as follows: firstly, two reflecting cups 2 with halogen bulbs 4 are parallel and are positioned on the same plane, the distance between the two reflecting cups 2 is adjusted to enable the reflecting cups to present uniform light spots without obvious overlapping on a plane at 0.5M (or other required irradiation distances), and the distance between the two reflecting cups 2 is the distance between the reflecting cups 2.

According to the mounting hole on the distance design shell between this anti-light cup 2 and the anti-light cup 2, the shell is used for inside embedding anti-light cup 2 side by side for the facula is close to and is arranged one row next to, forms even bar facula. The shell of this embodiment includes casing 5 and casing 6 down, corresponds on casing 5 and casing 6 lateral wall down and sets up a plurality of arc structures 8, and the arc structure 8 that casing 5 and casing 6 correspond down can form the mounting hole, is equipped with the recess 7 that matches with arc structure 8 along the circumferencial direction in the 2 outsides of anti-light cup. The groove 7 is clamped on the arc-shaped structure 8 of the lower shell 6, and then the upper shell 5 and the lower shell 6 are spliced together, namely the reflection cup 2 is fixed in the mounting hole. The number of mounting holes shown in the figure is the same as the number of reflector cups 2. Refer to fig. 1 and 2.

Through the design of the distance between the focusing position of the small halogen lamp beads 4 in the reflecting cup 2 and the reflecting cup 2, the reflecting cup 2 can be clamped at a proper position, and therefore when a power supply is turned on, uniform strip-shaped light spots can be formed.

In order to radiate heat for the halogen small lamp beads 4, the embodiment further comprises a radiating module, the radiating module used is a plurality of square small fans 3, the small fans 3 are arranged inside the shell and behind the light source, the small fans 3 are located 5-10 mm behind the light reflecting cup 2, each small fan 3 is fixed in the shell in a limiting mode through glue and 4L-shaped clamping grooves 9, specifically, each small fan 3 is fixed through 2L-shaped clamping grooves 9 located in the upper shell 5 and the lower shell 6 respectively, and the two L-shaped clamping grooves of the upper shell 5 and the lower shell 6 are arranged diagonally respectively, and the attached drawing 2 is referred.

Through the design, the halogen line light source with good uniformity is obtained, and the requirement of spectrum scanning can be met.

The above detailed description is for one embodiment of the present invention, but the above description is only for the preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims (10)

1. The utility model provides an even halogen line light source, its characterized in that includes power module, halogen light source module, reflection of light cup, heat radiation module and shell, power module respectively with halogen light source module the heat radiation module is connected, halogen light source module sets up in the reflection of light cup, reflection of light cup sets up in the shell in a row, reflection of light cup place the direction with the shell lateral wall is perpendicular just reflection of light cup the place opening end of place makes halogen light source module light see through towards the shell outside, reflection of light cup inner wall is the ellipsoid, heat radiation module is located in the shell, reflection of light cup rear, heat radiation module with shell fixed connection.

2. The halogen line light source of claim 1 wherein the distance between two adjacent reflector cups is such that the halogen light source module exhibits uniform, non-overlapping spots in a plane at the desired illumination distance.

3. The halogen line light source of claim 1, wherein the housing comprises an upper housing and a lower housing, the upper housing and the lower housing have a plurality of corresponding arc structures on the sidewalls thereof and form a plurality of mounting holes, the outer side of the reflector cup has a groove along the circumferential direction, the groove is matched with the arc structures, and the reflector cups are embedded in the mounting holes in parallel in rows.

4. The halogen line light source of claim 3, wherein the upper housing and the lower housing are respectively provided with a mounting plate parallel to the side wall, and the mounting plate is provided with an arc-shaped structure corresponding to the side wall.

5. The halogen line light source of claim 3 wherein the number of mounting holes is the same as the number of reflector cups.

6. The halogen line light source of claim 1, wherein the halogen light source module is fixedly connected to the reflector cup by a ceramic sealant.

7. The halogen line light source of claim 1, wherein the halogen light source module is a halogen bead with a wavelength of 400-2500 nm.

8. The halogen line light source of claim 1, wherein the power module is a voltage adjustable power module.

9. The halogen line light source of claim 3, wherein the heat dissipation module is a plurality of fans, and the fans are located 5-10 mm behind the reflector cup.

10. The halogen line light source of claim 9 wherein the fan is retained within the housing by a retaining groove provided in the upper and lower housings;

the fan is a square fan, the clamping groove is an L-shaped clamping groove, and the fan is fixed in the L-shaped clamping groove.

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