阅读说明：本技术 灯箱结构 (Lamp box structure ) 是由 侯福星 洪永庆 卓恩民 于 2019-03-14 设计创作，主要内容包括：一种灯箱结构,用以检测滤镜,包括有：一箱体、一控制电路、一灯泡、多个发光二极管、多个罩体及多个导光单元。该控制电路配置于该箱体中。该灯泡配置于箱体内与控制电路电性链接。该多个发光二极管配置于箱体内与该控制电路电性链接。该多个罩体配置于箱体内并罩于灯泡与该多个发光二极管上。该多个导光单元一端与罩体组接,该多个导光单元的另一端延伸于箱体外部。其中,该灯泡在测量低输出强度的波长不具足够的信号与噪声比,该控制电路关闭灯泡,以该控制电路控制该多个发光二极管提供一个不同波长的窄波长输出与该灯泡的宽波长特性进行互补。(A lamp box structure is used for detecting a filter, and comprises: the LED light source comprises a box body, a control circuit, a bulb, a plurality of LEDs, a plurality of cover bodies and a plurality of light guide units. The control circuit is configured in the box body. The bulb is arranged in the box body and is electrically connected with the control circuit. The plurality of light emitting diodes are arranged in the box body and electrically linked with the control circuit. The plurality of cover bodies are arranged in the box body and cover the bulb and the plurality of light-emitting diodes. One end of the light guide units is connected with the cover body in an assembling mode, and the other ends of the light guide units extend to the outside of the box body. Wherein the light bulb does not have sufficient signal to noise ratio at the wavelength where the low output intensity is measured, the control circuit turns off the light bulb, and the control circuit controls the plurality of light emitting diodes to provide a narrow wavelength output at a different wavelength complementary to the broad wavelength characteristic of the light bulb.)

1. A lamp box structure is characterized by comprising:

a box body;

a control circuit configured in the box body;

a bulb, which is configured in the box body and electrically linked with the control circuit to output a continuous spectrum with a wide wavelength;

a plurality of light emitting diodes, which are configured in the box body and electrically linked with the control circuit so as to output a spectrum with a narrow wavelength;

a plurality of cover bodies which are arranged in the box body and cover the bulb and the plurality of light-emitting diodes; and

a plurality of light guide units, which are arranged in the box body, wherein one end of each light guide unit is connected with the cover body in an assembling way, so that the plurality of light guide units, the bulb and the plurality of light emitting diodes are correspondingly arranged, and the other ends of the plurality of light guide units are integrally in a beam shape and extend outside the box body to provide a light output point;

the control circuit controls the bulb to light, the bulb does not have enough signal to noise ratio when measuring the wavelength of low output intensity, the control circuit closes the bulb, and the control circuit controls the plurality of light emitting diodes to provide a narrow wavelength characteristic output with different wavelengths to complement the wide wavelength characteristic of the bulb light source.

2. A light box structure as recited in claim 1 wherein the control circuit comprises an operation interface unit, a microprocessor, a first driving unit, a second driving unit and a third driving unit, the microprocessor is electrically connected to the operation interface unit, the first driving unit, the second driving unit and the third driving unit, the bulb is electrically connected to the first driving unit, and the second driving unit is electrically connected to the plurality of leds.

3. A light box structure as claimed in claim 2, wherein the operation interface unit is composed of a plurality of keys.

4. A light box structure as claimed in claim 1 wherein the bulb is a tungsten halogen or gas bulb.

5. A light box structure as claimed in claim 4, wherein the gas bulb is a halogen lamp.

6. A light box structure as recited in claim 1 wherein the bulb is 360 degree lighted and a plurality of light guide units are used to receive light.

7. A light box structure as recited in claim 2 wherein a lens is disposed between the light bulb and the plurality of leds and the plurality of light guide units.

8. The light box structure of claim 7, wherein the plurality of lenses are focusing lenses.

9. A light box structure as recited in claim 7 wherein an iris diaphragm is disposed between the bulb and the lens, the iris diaphragm being electrically connected to the third driving unit of the control circuit.

10. A light box structure as recited in claim 7 wherein an iris diaphragm is disposed between the light bulb and the light guide unit, the iris diaphragm being electrically connected to the third driving unit of the control circuit.

Technical Field

The present invention relates to a light box, and more particularly, to a light box structure capable of adjusting outputs of different light sources and different wavelengths.

Background

Known filters are various, such as CPL polarizers, ND polarizers, UV shields, etc. When the lens is used for shooting or optical detection, the glass or plastic lens placed at the front end of the lens of a camera or an optical detection instrument can selectively absorb different wave bands of light, so that special effects are produced on photographic works and detected workpieces.

After the filter is manufactured, the filter is detected by a light source generated by a bulb (tungsten halogen lamp or halogen lamp) in the lamp box. When detecting the filter, because the bulb generates an output light source with a wide wavelength continuous spectrum and different wavelengths also cause different output intensities, the high intensity wavelength often saturates the detector during use, and the low output intensity wavelength does not have enough signal-to-noise ratio (S/N), so the filter cannot be effectively detected.

Disclosure of Invention

Therefore, the main objective of the present invention is to solve the above-mentioned drawbacks, in which a plurality of leds are added in a lamp box structure, and when the wavelength of low output intensity is not yet sufficient in signal to noise ratio (S/N), the bulb can be turned off, and a light source with a narrow wavelength characteristic provided by the plurality of leds is switched to complement the bulb.

Another objective of the present invention is to add a lens between the light bulb and the light emitting diodes and the light guiding units inside the light box structure, so that the light source generated by the light bulb and the light emitting diodes can be focused and projected onto the light guiding units.

It is still another objective of the present invention to add an iris between the light bulb and the light guiding units or between the light bulb and the lens, so that the iris can close the output of the light source of the light bulb or adjust the output brightness of the light source of the light bulb, thereby achieving the purpose of adjusting the brightness.

To achieve the above object, the present invention provides a light box structure, comprising: the LED light source comprises a box body, a control circuit, a bulb, a plurality of LEDs, a plurality of cover bodies and a plurality of light guide units. The control circuit is configured in the box body. The bulb is arranged in the box body and electrically linked with the control circuit to output a continuous spectrum with a wide wavelength. The plurality of light emitting diodes are configured in the box body and electrically linked with the control circuit so as to output a spectrum with a narrow wavelength. The plurality of cover bodies are arranged in the box body and cover the bulb and the plurality of light-emitting diodes. The light guide units are arranged in the box body, one ends of the light guide units are connected with the cover body in an assembling mode, the light guide units, the bulb and the light emitting diodes are correspondingly arranged, and the other ends of the light guide units extend outside the box body in a bundle shape to provide a light output point. The control circuit controls the bulb to light, the bulb does not have enough signal to noise ratio when measuring the wavelength of low output intensity, the control circuit closes the bulb, and the control circuit controls the plurality of light emitting diodes to provide a narrow wavelength characteristic output with different wavelengths to complement the wide wavelength characteristic of the bulb light source.

In an embodiment of the present invention, the control circuit at least includes an operation interface unit, a microprocessor, a first driving unit, a second driving unit and a third driving unit, the microprocessor is electrically connected to the operation interface unit, the first driving unit, the second driving unit and the third driving unit, the bulb is electrically connected to the first driving unit, and the second driving unit is electrically connected to the plurality of light emitting diodes.

In an embodiment of the present invention, the operation interface unit is composed of a plurality of keys.

In one embodiment of the present invention, the lamp is a tungsten halogen lamp or a gas lamp.

In an embodiment of the present invention, the gas bulb is a halogen lamp.

In an embodiment of the present invention, the light bulb emits light in 360 degrees, and a plurality of light guiding units can be used for receiving light.

In an embodiment of the invention, a lens is disposed between the light bulb and the plurality of light emitting diodes and the plurality of light guide units.

In an embodiment of the invention, the plurality of lenses are focusing lenses.

In an embodiment of the invention, an iris diaphragm is disposed between the bulb and the lens, and the iris diaphragm is electrically connected to the third driving unit of the control circuit.

In an embodiment of the invention, an iris diaphragm is disposed between the light bulb and the light guide unit, and the iris diaphragm is electrically connected to the third driving unit of the control circuit.

Drawings

Fig. 1 is a circuit block diagram of a lamp box structure according to a first embodiment of the invention;

FIG. 2 is a schematic diagram of the spectrum of a tungsten halogen bulb of the present invention;

FIG. 3 is a diagram showing the result of multiplying the spectral distribution of a light source and the response of a CCD sensing element to a spectrum according to the present invention;

FIG. 4 is a schematic diagram of a mixed spectrum of a plurality of LEDs according to the present invention;

FIG. 5 is a schematic circuit block diagram of a lamp box structure according to a second embodiment of the present invention;

fig. 6 is a circuit block diagram of a light box structure according to a third embodiment of the present invention.

Description of reference numerals: 1-a box body; 2-a control circuit; 21-an operation interface unit; 22-a microprocessor; 23-a first drive unit; 24-a second drive unit; 25-a third drive unit; 3-a bulb; 4-a light emitting diode; 5-cover body; 6-a light guide unit; 7-a lens; 8-variable aperture.

Detailed Description

Referring now to the technical contents and the detailed description of the present invention, the following description is made with reference to the accompanying drawings:

fig. 1 is a schematic circuit block diagram of a lamp box structure according to a first embodiment of the present invention. As shown in the figure: the light box structure of the invention comprises: the light guide unit comprises a box body 1, a control circuit 2, a bulb 3, a plurality of light emitting diodes 4, a plurality of cover bodies 5 and a plurality of light guide units 6. The control unit 2 controls the light of the light bulb 3 or the plurality of light emitting diodes 4, so that the light sources of the light bulb 3 and the plurality of light emitting diodes 4 generate output light spots by the plurality of light guide units 6 and the output light spots are output to the outside of the box body 1, and a filter (not shown) can be detected.

The box 1 is a closed box 1 for mounting the control unit 2, the bulb 3, the light emitting diodes 4, the cover bodies 5 and the light guide units 6.

The control circuit (control circuit board) 2 at least includes an operation interface unit 21, a microprocessor 22, a first driving unit 23 and a second driving unit 24. The microprocessor 22 is electrically connected to the operation interface unit 21, the first driving unit 23 and the second driving unit 24, the operation interface unit 21 inputs control signals, and the microprocessor 22 drives the first driving unit 23 and the second driving unit 24 respectively to control the brightness of the bulb 3 and the plurality of light emitting diodes 4 and adjust the intensity of the light source. In the present drawing, the operation interface unit 21 is composed of a plurality of keys.

The bulb 3 is electrically connected with the first driving unit 23, and the bulb 3 is driven by the first driving unit 23 during detection so as to provide a wider continuous spectrum of output wavelength. In the present figure, the bulb 3 is a tungsten halogen lamp or a gas bulb.

The plurality of light emitting diodes 4 are electrically connected with the second driving unit 24, and the bulb 3 is driven by the first driving unit 23 during detection to provide a narrow spectrum of output wavelength. In the present drawing, the plurality of light emitting diodes 4 are light emitting diodes with different wavelengths.

The plurality of cover bodies 5 cover the light bulb 3 and the plurality of light emitting diodes 4, so that the light sources generated by the light bulb 3 and the plurality of light emitting diodes 4 are output in a centralized manner.

The light guide units 6 are assembled on the covers 5, and one end of the light guide unit 6 is assembled with the covers 5, so that the light guide unit 6, the bulb 3 and the light emitting diodes 4 are correspondingly configured, and the other ends of the light guide units 6 extend outside the box 1 in a bundle shape. The covers 5 can concentrate the light source generated by the light bulb 3 and the light emitting electrode bodies 4 to the light guide units 6, so that the light guide units 6 can guide the light source out of the box 1 to form a light output point for detection by a filter (not shown). In the present drawing, the light guide unit 6 is an optical fiber.

When detecting the filter, the interface unit 21 is operated to make the microprocessor 22 of the control circuit 2 control the first driving unit 23 to drive the bulb (tungsten halogen lamp or gas bulb such as halogen lamp) 3, so that the bulb 3 generates an output light source with a broad wavelength continuous spectrum, but the output intensities of different wavelengths are different, the wavelengths with high intensity often used saturate the CCD sensing element (not shown), and the wavelengths with low output intensity do not have sufficient signal-to-noise ratio (S/N). At this time, the microprocessor 22 of the control circuit 2 must control the first driving unit 23 to turn off or reduce the light source generation of the light bulb 3, and the microprocessor 22 of the control circuit 2 controls the second driving unit 24 to drive the plurality of light emitting diodes 4 to light, so that the light source of the plurality of light emitting diodes 4 provides a characteristic of a narrow wavelength, which is complementary to the characteristic of a wide wavelength of the light source of the light bulb 3.

Please refer to fig. 2-4, which are schematic diagrams of the spectrum of the tungsten-halogen bulb, the multiplication result of the spectrum distribution of the light source and the response of the CCD sensor device to the spectrum, and the mixed spectrum of the plurality of leds according to the present invention. As shown in the figure: specifically, when the bulb 3 of the tungsten halogen lamp is used in the present invention, it can be found that the intensity below 450nm is weak (as shown in fig. 2), and the result of the measurement of the tungsten halogen lamp by the spectrometer made of a CCD sensing element (not shown) in the present invention is as follows:

in general measurement, it is often found that the relative light intensity between 350nm and 450nm is insufficient and the response of the CCD sensing element is insufficient between 800nm and 1100nm, so that the signal-to-noise ratio (S/N) is insufficient in the above-mentioned wavelength band measurement, and thus the measurement is inaccurate. At this time, the microprocessor 22 of the control circuit 2 controls the first driving unit 23 to turn off or reduce the light source generation of the light bulb 3, and the microprocessor 22 of the control circuit 2 (as shown in fig. 1) controls the second driving unit 24 to drive the plurality of light emitting diodes 4, so that the narrow wavelength characteristics of the plurality of light emitting diodes 4 provide a mixed spectrum of 365nm, 395nm and white light to complement the light source, thereby achieving the purpose of complementing the wide wavelength characteristics of the light source of the light bulb 3.

Fig. 5 is a schematic circuit block diagram of a lamp box structure according to a second embodiment of the present invention. As shown in the figure: the present embodiment is substantially the same as the first embodiment, except that a lens 7 is disposed between the light bulb 3 and the plurality of leds 4 and the plurality of light guiding units 6, and the lens 7 can focus and project the light generated by the light bulb 3 and the plurality of leds 4 onto the light guiding units 6. In the present figure, the lens 7 is a focusing lens.

Fig. 6 is a schematic circuit block diagram of a lamp box structure according to a third embodiment of the present invention. As shown in the figure: the present embodiment is substantially the same as the first embodiment, except that an iris diaphragm 8 is disposed between the light bulb 3 and the light guiding unit 6 or between the light bulb 3 and the lens 7, and a third driving unit 25 is added to the control circuit 2, such that the iris diaphragm 8 is electrically connected to the third driving unit 25.

When the box needs 450nm of ultraviolet light to detect the filter (not shown), the microprocessor 22 of the control circuit 2 controls the third driving unit 25 to make the iris diaphragm 8 operate, so that the iris diaphragm 8 can be closed to prevent the light source of the bulb 3 from outputting, and only the light sources of the LEDs 4 can output.

Further, since the bulb 3 emits light in 360 degrees, a plurality of light guide units 5 may be used to receive the light.

It should be understood that the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, so that equivalent variations made by using the contents of the present specification or drawings are included in the scope of the present invention.