Remote photoelectric separation color-adjustable lamp

Abstract

The utility model relates to a long-distance photoelectric separation color-adjustable lamp which comprises a control chamber, a lighting optical fiber and a reflecting cover. The control chamber comprises a red-green-blue three-primary-color laser, a reflecting lens group and a bracket for fixing each lens in the reflecting lens group; the three-primary-color laser comprises red, green and blue laser diodes and laser driving circuits respectively matched with the red, green and blue laser diodes; the light source adjusted by the control room is matched with the reflecting lens group through a specific transmission direction and a specific transmission sequence so as to be adjusted on a light emitting point, long-distance transmission is carried out through the illumination optical fiber, and finally light illumination is realized through the reflecting cover, so that photoelectric separation is realized. The three-primary-color laser can be freely adjusted from 0% to 100%, free combination of RGB colors is achieved, light of various colors is output, and the size and the number of original light sources are greatly reduced. Illumination of various colors can be achieved according to the requirements of customers, light transmission with extremely low loss of 1000 m or above can be achieved, the requirements for explosion prevention and free and rapid adjustment of various colors are met, and the LED lamp is very suitable for specific places with the isolation requirement for a power source.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting, in particular to a long-distance photoelectric separation and color-adjustable lamp. Background Art

[0002] The statements in this section merely provide background information related to the present disclosure, and these statements may constitute prior art. In the process of implementing the present utility model, the inventors found that there are at least the following problems in the prior art.

[0003] Fiber fusion splicing and fiber transmission are mature technologies currently in the market, widely used in the communications industry and fiber-to-the-home applications. However, the wavelengths used in these technologies are infrared lasers in the 1310nm to 1550nm band, not visible light, which is visible to the human eye.

[0004] Chemical production sites require basic visual inspections of various colored fiberglass products to ensure product consistency. When inspecting single-color products, using ambient light of the corresponding color as an auxiliary light source makes it easier and faster to verify that color consistency of large batches of products meets requirements. Furthermore, due to strict explosion-proof requirements for electrical products at chemical production sites, electric light sources cannot be placed on-site.

[0005] Existing products utilize specialized explosion-proof lamps, which are expensive and lack color adjustment. Color-changing requirements necessitate the use of multi-color explosion-proof lamps. Due to site installation limitations, only one or two light sources can be installed. Color changes require lamp replacement, significantly impacting production efficiency.

[0006] Patent application number 201510355837.2, titled "A Fiber-optic Transmission Illumination Device," utilizes a circuit control system and cooling system to control a laser diode to steadily and continuously output a 450nm blue single-frequency laser. This laser is efficiently coupled into the transmission fiber via a fiber coupler. The laser headlight receives the parallel light beam transmitted by the fiber, expands it, and then reacts with a yellow phosphor filter within the laser headlight to convert it into 540nm yellow light, ultimately forming a 1:3 mixture of blue and yellow light. This patent utilizes a monochromatic 450nm blue laser diode, which is mixed with a yellow phosphor filter at the front end to produce white light. Consequently, it can only emit monochromatic white light. While this device can address explosion-proofing issues and is relatively low-cost when used in chemical production sites, even if laser diodes of other colors are replaced, they can still only detect products of a single color, resulting in low production efficiency. Setting up multiple groups would be costly and require constant replacement based on demand, significantly impacting production efficiency.

[0007] Patent No. 200910109409.6 entitled "a fiber-optic lighting method and system", which uses at least two monochrome LED light source, by adjusting the energy of monochromatic light to obtain the desired mixed light, and through the optical fiber transmission, to achieve long distance mixed light fiber-optic lighting. The above patent solves the problem of explosion-proof and multi-color inspection, but the applicant found that the light decay is serious in the field of light output, and the brightness is obviously insufficient. Secondly, the above patent product cannot achieve 0% ~ 100% analog linear adjustment, and cannot meet the demand of free and fast adjustment of various colors, which still affects the production efficiency. SUMMARY

[0008] In view of the above problems, the purpose of the present application is to solve some problems in the prior art, or at least to alleviate these problems.

[0009] A long-distance photoelectric separation adjustable color lamp, comprising a control chamber, an optical fiber and a reflecting device, the control chamber transmits the generated light source to the reflecting device through the optical fiber for long-distance irradiation; the control chamber comprises a three-primary-color laser, a reflecting lens group, a support for fixing each lens in the reflecting lens group and a light combining lens; the three-primary-color laser comprises a red laser diode, a green laser diode and a blue laser diode, and a laser driver circuit for adjusting the monochromatic light source matched therewith; the light source emitted after adjustment of the three-primary-color laser is concentrated on the light combining lens after passing through the reflecting lens group in a specific transmission direction and transmission sequence, and is then transmitted to the reflecting device through the optical fiber for long-distance irradiation.

[0010] Optionally, the reflecting lens group comprises a total reflecting lens, a red-transmitting green-reflecting lens, a red-transmitting green-reflecting blue-reflecting lens and a light combining lens; the light source emitted by the red laser diode is concentrated at the light combining lens after passing through the total reflecting lens, the red-transmitting green-reflecting lens and the red-transmitting green-reflecting blue-reflecting lens in turn; the light source emitted by the green laser diode is concentrated at the light combining lens after passing through the red-transmitting green-reflecting lens and the red-transmitting green-reflecting blue-reflecting lens in turn; the light source emitted by the blue laser diode is concentrated at the light combining lens after passing through the red-transmitting green-reflecting blue-reflecting lens.

[0011] Preferably, the support is a three-dimensional adjustment support.

[0012] Preferably, the lenses of the reflecting lens group have a transmittance and reflectance of more than 99.9% for a specified wavelength.

[0013] Further, the laser driver circuit is a driving circuit capable of 0% ~ 100% analog linear adjustment of the corresponding monochromatic laser.

[0014] Further, the front end of the laser driver circuit is additionally provided with an APC chip.

[0015] Further, the light-combining lens is a 100mm*100mm bottom plate.

[0016] The optical fiber is an illumination optical fiber; and the light-reflecting device is a light-reflecting cover.

[0017] Further, the illumination optical fiber is an ultraviolet quartz optical fiber; and the light-reflecting cover adopts an aluminum high-polished mirror surface material with high surface smoothness and high reflectivity of more than 95% of optical glass.

[0018] The utility model has the following beneficial effects:

[0019] 1. RGB three primary colors visible laser is introduced into the optical fiber simultaneously for the first time, the optical fiber transmission of visible spectrum is realized, the explosion-proof demand of the chemical product production site is met, and the three primary color laser diodes are adjusted by cooperating with the 0%~100% analog linear adjustment driving circuit, the smooth output of various color changes is ensured, the application can freely and quickly adjust various colors of the laser under the premise of photoelectric separation, the single-color explosion-proof lamp with high cost and the need for continuous replacement can be directly replaced, the number of lamps is reduced, the production line adjustment time is accelerated, and the production efficiency is improved.

[0020] 2. The three-dimensional adjusting support and the light-combining lens of the 100mm*100mm bottom plate are adopted to cooperate with the plurality of reflecting lenses, the red, green and blue three-color laser can be accurately synthesized on a point of the light-combining lens, accurate adjustment is realized, various color light rays can be output under the close cooperation of the optical path and the circuit, and the size and the number of the original light source are greatly reduced.

[0021] 3. The transmission and reflection of the reflecting lens group to the specified wavelength reach more than 99.9%, too much laser remaining on the lens can be well avoided to cause the damage of the coating layer, and the service life of the lens is improved. DRAWINGS

[0022] The above structure of the utility model can be further illustrated by the following non-limiting embodiments shown in the drawings.

[0023] Figure 1 It is a light path principle diagram of the three primary color laser of the utility model;

[0024] Figure 2 It is a diagram of the colors that can be output by the three primary color laser;

[0025] Figure 3 It is a specific circuit diagram of the laser driver circuit;

[0026] Figure 4The function of the APC chip in the front end of the laser driving circuit is introduced.

[0027] 1-red laser diode; 2-green laser diode; 3-blue laser diode; 4-reflection device; 5-full reflection lens; 6-red transmission and green reflection lens; 7-red and green transmission and blue reflection lens; 8-combination lens; 9-optical fiber. DETAILED DESCRIPTION

[0028] The embodiments of the utility model are only used for explaining the utility model and not limiting the utility model, and various substitutions and changes can be made according to the ordinary technical knowledge and conventional means in the art without departing from the technical thought of the utility model, which should be included in the scope of the utility model.

[0029] Through the in-depth research of the patent product with the patent name "a fiber illumination method and system" of the application number 200910109409.6, it is found that the fundamental reason for the problem of insufficient brightness of the patent product is that LED light emitting diode is adopted. The biggest difference between LED light emitting diode and laser diode is that LED is a surface light source, and the emission angle is very large, generally 30 degrees or more. Laser diode is a point light source, and the light emission is a point, and the emission angle is milliradian, which is more than 1000 times smaller than LED. If LED is used as the light source in the front end of the similar product in the market, there will be great loss in the optical fiber fusion and transmission, so that the light in the on-site light emission part has been exhausted a lot, and the brightness is insufficient. The professional illumination brightness metering test shows that the light intensity of the laser diode light source is more than 2 times of that of the LED light source with the same electric power. Therefore, LED is generally used in local illumination or as the backlight of television mobile phone, and cannot be used for remote illumination.

[0030] Considering the use scene, cost and production efficiency, the applicant designs the following scheme.

[0031] As Figure 1The application discloses a long-distance photoelectric separation adjustable color light fixture, which comprises a control chamber, an optical fiber 9 and a light reflecting device 4, wherein the control chamber transmits generated light sources to the light reflecting device 4 through the optical fiber 9 to realize long-distance irradiation; the control chamber comprises three primary color lasers, a reflecting lens group, a support for fixing each lens in the reflecting lens group and a light combining lens 8; the three primary color lasers comprise a red laser diode 1, a green laser diode 2 and a blue laser diode 3, and laser driver circuits matched with the three primary color lasers respectively to adjust monochromatic light sources; the light sources emitted by the three primary color lasers after adjustment are concentrated on the light combining lens 8 in a specific transmission direction and transmission sequence, and then are transmitted to the light reflecting device 4 through the optical fiber 9 to realize long-distance irradiation.

[0032] The light source of the application adopts red, blue and green three primary color lasers, so that the light sources after adjustment are combined on a light emitting point through the specific transmission direction and transmission sequence, the optical fiber 9 and the light reflecting device 4, long-distance irradiation is realized, photoelectric separation is realized, and the light fixture can be used in specific places with isolation requirements for power supply. Since the three primary color lasers adopt laser diodes, the problem of large loss of LED light emitting diodes in optical fiber fusion and transmission is solved, and the brightness meets the requirements. In addition, the laser driver circuit is used to adjust the three primary color laser diodes respectively, so that various color lighting requirements can be realized according to customer requirements.

[0033] The three primary color lasers can be combined with the reflecting lens group to realize the needs of visible light combination and color adjustment. Through the combination of the professional lenses, the free combination of RGB colors is realized. Figure 1 As shown in the figure, the reflecting lens group comprises a full reflecting lens 5, a red-transmitting green-reflecting lens 6, a red-transmitting green-reflecting blue lens 7 and a light combining lens 8; the light source emitted by the red laser diode 1 is concentrated on the light combining lens 8 after sequentially passing through the full reflecting lens 5, the red-transmitting green-reflecting lens 6 and the red-transmitting green-reflecting blue lens 7; the light source emitted by the green laser diode 2 is concentrated on the light combining lens 8 after sequentially passing through the red-transmitting green-reflecting lens 6 and the red-transmitting green-reflecting blue lens 7; and the light source emitted by the blue laser diode 3 is concentrated on the light combining lens 8 after passing through the red-transmitting green-reflecting blue lens 7.

[0034] The red, green and blue three color lasers are actually combined on a light emitting point. Figure 1 Three lines are drawn in the figure to schematically represent the transmission direction and transmission sequence of the three primary colors, so as to facilitate intuitive understanding.

[0035] The support is mainly used for fixing the lenses of the reflecting lens group. Since good mechanical precision is required to ensure that the red, green and blue lasers are accurately combined at a point on the combining lens 8 to achieve accurate adjustment, the support is a three-dimensional adjustment support and needs to be customized. In addition, the combining lens 8 adopts a 100mm x 100mm base plate, and through close cooperation with the optical path and the circuit, the red, green and blue lasers can be integrated on the base plate, so that various color lights can be output, greatly reducing the size and number of original light sources.

[0036] The lenses of the reflecting lens group need to be customized. Preferably, the transmission and reflection of the lenses of the reflecting lens group to a specified wavelength are above 99.9%, otherwise too much laser remaining on the lenses will cause damage to the coating layer and affect the service life.

[0037] In order to ensure smooth output of various color changes, the laser driver circuit is a driving circuit that can analogically linearly adjust the corresponding monochromatic laser from 0% to 100%. The circuit can be adjusted from 0% to 100%, such as 33.3333%, and the theoretical state is not limited. Integrating the laser driver circuit analog adjustment from 0% to 100% into a free adjustment driving circuit, the efficient circuit realizes the free combination of RGB colors.

[0038] The above-mentioned laser driver circuit can adopt a traditional laser driving circuit, and a professional APC chip is additionally provided at the front end of the laser driver circuit, which is responsible for converting an analog signal into a PWM pulse width modulation signal compatible with the driving circuit. Thus, various colors can be freely and quickly adjusted under the premise of photoelectric separation, directly replacing the previous single-color explosion-proof lamp, reducing the number of lamps, speeding up the production line adjustment time, and improving the production efficiency.

[0039] The function of the APC chip is as shown in Figure 4 The specific laser driving circuit is as shown in Figure 3 The RW1 potentiometer is adjusted from 0-5v, and the PWM output is 0-100% duty cycle PWM signal. The RGB three-primary color laser output is adjusted from 0-100% brightness range. The combination of the above-mentioned traditional laser driving circuit and the APC chip is a common combination means in the field.

[0040] The dimming synthesis table is as shown in Figure 2 According to different proportions of three primary colors, any color light in nature can be composed. 100% full on, 0% full off, and the rest of the corresponding numbers represent the required output of the light source corresponding to the brightness ratio.

[0041] The optical fiber 9 is an illumination optical fiber. Due to the excellent characteristics of the illumination optical fiber and the use of laser diodes, an extremely low loss light transmission of more than 1000 meters can be achieved. The light reflecting device 4 is a light reflecting cover. Because of the requirement of on-site explosion-proof, the light reflecting cover and the high borosilicate glass cover are tightly installed in one body. The light reflecting cover is specially selected to use an aluminum high polishing mirror surface material with high surface finish and high reflectivity of more than 95% of optical glass, to meet the requirement of on-site illumination.

[0042] The illumination optical fiber is an ultraviolet quartz optical fiber.

[0043] The application is a long-distance, photoelectric separation adjustable color lamp, which uses electricity to light red, blue and green three primary color laser diodes in the control room, connects the light after dimming to the illumination optical fiber, realizes long-distance transmission and photoelectric separation through the illumination optical fiber, and finally realizes light illumination through the light reflecting cover in the light area. Through the close cooperation of the optical path and the circuit, the application can output various color lights, greatly reducing the size and number of the original light source. By using the mature optical fiber technology in the communication industry, photoelectric separation is realized. This patent first introduces RGB three primary color visible laser into the optical fiber, realizes the optical fiber transmission of the visible spectrum, solves the requirements of explosion-proof and free and fast adjustment of various colors in specific places with isolation requirements for power supply, greatly speeds up the operation demand of product adjustment product line, and improves the work efficiency.

[0044] The product of the application needs excellent optical lens suppliers, high-precision mechanical processing factories, stable and efficient circuit suppliers, laser diode suppliers with an average trouble-free working time of more than 50,000 hours, etc. Through more than three years of multiple version iteration, the company has made the principle diagram into a stable commercial product. The above-mentioned various technical problems are solved.

Claims

1. A long-distance photoelectric separation color-adjustable lamp, comprising a control room, an optical fiber (9) and a reflective device (4), wherein the control room transmits the light source generated by the optical fiber (9) to the reflective device (4) for long-distance illumination; characterized in that: The control room comprises a three-primary-color laser, a reflective lens group, a bracket for fixing each lens in the reflective lens group, and a light-combining lens (8); the three-primary-color laser comprises a red laser diode (1), a green laser diode (2), and a blue laser diode (3), and laser driving circuits respectively matched therewith for adjusting a monochromatic light source; the reflective lens group comprises a total reflection lens (5), a red-transmitting green-reflecting lens (6), a red-transmitting green-reflecting blue lens (7), and a light-combining lens (8); the light source emitted by the red laser diode (1) passes through the total reflection lens (5), the red-transmitting green-reflecting lens (6), and the red-transmitting green-reflecting blue lens (7), and the light-combining lens (8) in sequence. The light emitted by the green laser diode (2) passes through the red-transmitting, green-reflecting lens (6) and the red-green-transmitting, blue-reflecting lens (7) in sequence and is then concentrated at the light-combining lens (8); the light emitted by the blue laser diode (3) passes through the red-transmitting, green-reflecting, blue-reflecting lens (7) and is then concentrated at the light-combining lens (8); the light emitted by the three primary color lasers after adjustment passes through the reflective lens group in the above-mentioned transmission direction and transmission sequence, is then concentrated on the light-combining lens (8) and adjusted to a light-emitting point, and is then transmitted to the reflective device (4) through the optical fiber (9) for long-distance irradiation.

2. The long-distance photoelectric separation color-adjustable lamp according to claim 1, characterized in that: The bracket is a three-dimensional adjustable bracket.

3. The long-distance photoelectric separation color-adjustable lamp according to claim 1, characterized in that: The laser driving circuit is a driving circuit that can perform analog linear adjustment of 0% to 100% on the corresponding monochromatic laser.

4. The long-distance photoelectric separation color-adjustable lamp according to claim 3, characterized in that: An APC chip is additionally provided at the front end of the laser driving circuit.

5. The long-distance photoelectric separation color-adjustable lamp according to claim 1, characterized in that: The light combining lens (8) is a 100mm×100mm base plate.

6. The long-distance photoelectric separation color-adjustable lamp according to claim 1, characterized in that: The optical fiber (9) is an illumination optical fiber; and the reflective device (4) is a reflector.

7. The long-distance photoelectric separation color-adjustable lamp according to claim 6, characterized in that: The illumination optical fiber is an ultraviolet quartz optical fiber; the reflector is made of an aluminum high-polished mirror material with a high surface finish and a high reflectivity reaching more than 95% of optical glass.

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