CN115539909A

CN115539909A - Lighting module and lamp

Info

Publication number: CN115539909A
Application number: CN202110731185.3A
Authority: CN
Inventors: 戴奇; 林畅; 胡治国
Original assignee: Fudan University
Current assignee: Fudan University
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2022-12-30

Abstract

A lighting module and a luminaire, the lighting module comprising: the first light-emitting module comprises a light-emitting unit, the light-emitting unit comprises a floodlight element and a plurality of first light sources, the first light sources are used for emitting light with preset colors, the preset colors correspond to the working modes of the lighting module, the working modes comprise a daytime mode and a night mode, and the floodlight element is arranged on the light path of the first light sources; the first light source comprises a first light source and a second light source, the first light source is used for emitting blue light, the second light source is used for emitting white light, and light emitted by at least one of the first light source and the second light source penetrates through the floodlight element and then is diverged and guided out. The lighting module is provided with the first type light source and the second type light source, so that the lighting module can realize the blue-sky visual effect and the lighting function in the daytime mode and can realize the lighting function in the night mode, and the illumination performance and the user experience are improved.

Description

Lighting module and lamp

Technical Field

The embodiment of the invention relates to the technical field of optical illumination, in particular to an illumination module and a lamp.

Background

With the progress of science and technology and the change of working modes, indoor space has become a main place for daily activities of people. Although the wide use of large quantities of windowless spaces and underground spaces expands the regional boundaries of people's daily lives, people cannot receive sufficient natural light in such spaces, and therefore, the lighting field is actively discussing the possibility of realizing the effect of simulating natural light through artificial light sources and continuously pursuing the visual fidelity. For example, by installing skylight lights on the roof or ceiling of a room to simulate natural light.

However, the performance and user experience of the lighting module still need to be improved at present.

Disclosure of Invention

The embodiment of the invention solves the problem of providing the lighting module and the lamp, and improves the illumination performance and the user experience.

To solve the above problems, an embodiment of the present invention provides an illumination module, including: the first light-emitting module comprises a light-emitting unit and a plurality of first light sources, the first light sources are used for emitting light with preset colors, the preset colors correspond to the working modes of the lighting module, the working modes comprise a daytime mode and a night mode, and the floodlight elements are arranged on the light path of the first light sources; the first light source comprises a first light source and a second light source, the first light source is used for emitting blue light, the second light source is used for emitting white light, and light emitted by at least one of the first light source and the second light source is diffused and guided out after penetrating through the floodlight element.

Correspondingly, an embodiment of the present invention further provides a lamp, including: the embodiment of the invention provides an illumination module; a control module comprising a first control unit for controlling the luminous intensities of the first and second light sources such that the luminous intensity ratio of the first and second light sources is configured to: the first light source emits light of the preset color corresponding to the working mode.

Compared with the prior art, the technical scheme of the embodiment of the invention has the following advantages:

in the lighting module provided by the embodiment of the invention, the first lighting module comprises a lighting unit with a first light source, the first light source comprises a first-class light source and a second-class light source, light emitted by at least one of the first-class light source and the second-class light source is divergently led out after penetrating through the floodlight element, the first-class light source is used for emitting blue light, and the second-class light source is used for emitting white light, so that when the light emitted by the first-class light source is divergently led out or the light emitted by the first-class light source and the second-class light source are mixed and divergently led out, light with a preset color simulating a blue sky is easily obtained to realize a blue sky visual effect, and the rhythm stimulation efficiency of the blue light is high, so that the light with the preset color can provide high rhythm stimulation to realize a day-day rhythm lighting function in a day mode; in summary, the embodiment of the present invention employs the light emitting unit having the first type light source and the second type light source, so that the lighting module can not only achieve the blue-sky visual effect and the lighting function in the daytime mode, but also achieve the lighting function in the night mode, thereby improving the illumination performance and the user experience.

In the alternative, the second type light source is a warm white light source, so that when light emitted by the second type light source is divergently led out, night illumination can be realized, low-color-temperature white light can be obtained, the rhythm stimulation of warm white light is low, and low rhythm stimulation can be obtained during illumination, so that the circadian rhythm illumination function of a night mode is realized; therefore, the embodiment of the invention adopts the light-emitting unit with the first type light source and the second type light source, and the second type light source is a warm white light source, so that the lighting module not only can meet the lighting requirements of a daytime mode and a nighttime mode, but also can emit light with higher rhythm stimulation in the daytime to improve the alertness, and emit light with lower rhythm stimulation in the nighttime to reduce the influence on sleep, thereby regulating the circadian rhythm stimulation of illumination to meet the requirement of the circadian rhythm of a human body on illumination, and further improving the illumination performance and user experience.

In an alternative scheme, the lighting module further includes a second light-emitting module stacked with the first light-emitting module, the second light-emitting module includes a light guide element and a second light source for emitting white light, and light emitted by the second light source is guided out directionally according to a preset direction after penetrating through the light guide element, so that when the second light source is turned on, the second light-emitting module can guide out parallel light or near parallel light directionally, thereby generating natural light spots, further enhancing scene reality, and creating a good lighting atmosphere (for example, a scene in which sunlight penetrates through a skylight and is irradiated into a room, or a scene in which the sun is hung on a blue sky), and accordingly, lighting performance and user experience are further improved.

In an alternative scheme, the first light-emitting module further comprises a haze layer, and the haze layer is positioned above the light-emitting unit along the light-emitting direction of the light emitted by at least one of the first type light source and the second type light source after the light transmits through the floodlight element; the light emitted by the light-emitting unit is guided out after penetrating through the haze layer, and the haze layer can further realize integral divergence of light so as to realize further homogenization of light and improve sense of sky.

The lamp provided by the embodiment of the invention comprises an illumination module and a control module, wherein the control module comprises a first control unit, the first control unit is used for controlling the luminous intensity of a first kind of light source and a second kind of light source, so that the luminous intensity ratio of the first kind of light source to the second kind of light source is configured as follows: the first light source emits light with the preset color corresponding to the working mode; the lighting module provided by the embodiment of the invention can realize the blue-sky visual effect and the lighting function in the daytime mode and can realize the lighting function in the night mode, so that the control module is arranged in the lamp, the first type light source and the second type light source are controlled by the first control unit in the control module, and the first light source emits light with the preset color corresponding to the working mode, so that the lamp has the performances of lighting and realizing the blue-sky visual effect at the same time, and the illumination performance and the user experience are further improved.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment of an illumination module according to the present invention;

FIG. 2 is a spectral luminous efficiency response curve for melanoidin;

FIG. 3 is a schematic diagram of a light source located at a color coordinate point of a CIE chromaticity diagram;

FIG. 4 is a schematic structural diagram of a lighting module according to a second embodiment of the present invention;

FIG. 5 is a schematic distribution diagram of an embodiment of the first light source of FIG. 4;

FIG. 6 is a schematic structural diagram of a lighting module according to a third embodiment of the present invention;

FIG. 7 is a schematic structural diagram of an embodiment of the second light emitting module in FIG. 6;

FIG. 8 is a schematic structural diagram of a lighting module according to a fourth embodiment of the present invention;

FIG. 9 is a functional block diagram of an embodiment of a lamp of the present invention;

fig. 10 is a schematic view of a preset color range of light corresponding to the daytime mode in the lamp shown in fig. 9.

Detailed Description

As can be seen from the background art, in order to allow people to receive sufficient natural light in an indoor space, the lighting field is actively discussing the possibility of realizing the effect of simulating natural light by an artificial light source.

However, the current lighting module can only realize the function of simulating the natural light effect in the daytime, and can not realize the lighting function at night, thereby leading to the current lighting module can not have these two kinds of mode at daytime and night concurrently, and then leading to lighting module's illumination performance and user experience to feel relatively poor.

In order to solve the technical problem, an embodiment of the present invention provides an illumination module, including: the first light-emitting module comprises a light-emitting unit and a plurality of first light sources, the first light sources are used for emitting light with preset colors, the preset colors correspond to the working modes of the lighting module, the working modes comprise a daytime mode and a night mode, and the floodlight elements are arranged on the light path of the first light sources; the first light source comprises a first light source and a second light source, the first light source is used for emitting blue light, the second light source is used for emitting white light, and light emitted by at least one of the first light source and the second light source is diffused and guided out after penetrating through the floodlight element.

In the embodiment of the invention, when the light unit with the first light source and the second light source is adopted to diffuse and lead out the light emitted by the first light source or mix and diffuse and lead out the light emitted by the first light source and the second light source, the light with the preset color for simulating the blue sky is easily obtained to realize the visual effect of the blue sky, and the rhythm stimulation efficiency of the blue light is higher, so that higher rhythm stimulation can be provided, and the day-night rhythm illumination of a day mode can be realized; in conclusion, by adopting the light-emitting unit with the first-class light source and the second-class light source, the lighting module can not only realize the blue-sky visual effect and the lighting function in the daytime mode, but also realize the lighting function in the nighttime mode, so that the illumination performance and the user experience are improved.

In order to make the aforementioned objects, features and advantages of the embodiments of the present invention comprehensible, specific embodiments accompanied with figures are described in detail below.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a lighting module according to a first embodiment of the present invention.

The lighting module 50 includes: a first light-emitting module 10, wherein the first light-emitting module 10 includes a light-emitting unit 100, the light-emitting unit 100 includes a floodlight element 120 and a plurality of first light sources 110, the first light sources 110 are configured to emit light of a preset color, the preset color corresponds to an operation mode of the lighting module 50, the operation mode includes a daytime mode and a nighttime mode, and the floodlight element 120 is disposed on a light path of the first light sources 110; the first light source 110 includes a first light source 111 and a second light source 112, the first light source 111 is configured to emit blue light, the second light source 112 is configured to emit white light, and light emitted by at least one of the first light source 111 and the second light source 112 passes through the floodlight component 120 and is divergently led out.

The first light-emitting module 10 is configured to emit illumination light, so as to realize an illumination function of the illumination module 50. Therefore, the first light emitting module 10 contains the light emitting unit 100, and the illumination light is generated by the light emitting unit 100 in particular.

In this embodiment, the light emitting unit 100 is used to provide a visual blue sky landscape during daytime lighting, provide high rhythm stimulation, and also to realize nighttime lighting. In this embodiment, the light emitting unit 100 includes a plurality of first light sources 110.

As an example, the first light source 110 is an LED (light emitting diode) light source. The LED light source has the characteristics of energy conservation, environmental protection, safety, long service life, low power consumption, high efficiency, high brightness, water resistance, micro size and the like, and the LED light source also has the characteristics of adjustable wavelength and easy adjustment of luminous intensity, and the light source capable of emitting light with proper color can be easily selected by selecting the LED light source, so that the light-emitting unit 100 can emit the light meeting the requirements.

In this embodiment, the first light source 110 is configured to emit light with a preset color, where the preset color corresponds to an operation mode of the lighting module 50, and the operation mode includes a daytime mode and a nighttime mode. Specifically, when the working mode is the daytime mode, the preset color is a color simulating a blue sky, and when the working mode is the nighttime mode, the preset color is white light.

Thus, the first light source 110 includes a first type light source 111 and a second type light source 112, the first type light source 111 is used for emitting blue light, and the second type light source 112 is used for emitting white light.

By adopting the first-type light source 111 capable of emitting blue light, light with a preset color simulating a blue sky is obtained, so that a blue sky visual effect is realized; moreover, since the blue light has a high rhythm stimulation, the high rhythm stimulation can improve the alertness of the human body and reduce the drowsiness degree, so that when the light emitted by the first-type light source 111 is diverged and led out, or the light emitted by the first-type light source 111 and the light emitted by the second-type light source 112 are mixed and then diverged and led out, the light with the preset color can provide the high rhythm stimulation, thereby realizing the circadian rhythm lighting function of the daytime mode.

Since the second-type light sources 112 are used for emitting white light, when the light emitted by the second-type light sources 112 is dispersed and guided out, the illumination function can be realized.

In summary, in the present embodiment, by using the light emitting unit 100 having the first type light source 111 and the second type light source 112, the lighting module 50 not only can realize the blue-sky visual effect and the lighting function in the daytime mode, but also can realize the lighting function in the night mode, that is, the lighting module 50 has the functions of daytime lighting and night lighting, thereby improving the illumination performance and the user experience.

It is understood that the ratio of the light emitting intensities of the first type light source 111 and the second type light source 112 not only affects the color of the light emitted by the first light source 110, but also affects the rhythm stimulation of the light emitted by the first light source 110, and the greater the ratio of the light emitting intensities of the first type light source 111 and the second type light source 112 (i.e. the more blue light), the higher the rhythm stimulation of the light emitted by the first light source 110. Therefore, when the lights emitted from the first-type light sources 111 and the second-type light sources 112 are mixed and then divergently led out, the light emitted from the first light sources 110 can have a high rhythm stimulation or a low rhythm stimulation by appropriately setting the light emission intensity ratio between the first-type light sources 111 and the second-type light sources 112.

Specifically, the second type of light source 112 may be a warm white light source or a cool white light source according to actual requirements. Wherein, when the second type light source 112 is a warm white light source, the warm white light is a white light with a color temperature (CCT) less than or equal to 4000K, and the color temperature of the cold white light is greater than that of the warm white light.

It should be noted that, when the second type light source 112 is a cold white light source and light emitted by the second type light source 112 is diverged and led out, the second type light source 112 emits white light with a high color temperature, so that a lighting effect of high rhythm stimulation can be obtained, and when the second type light source 112 is a warm white light source and light emitted by the second type light source 112 is diverged and led out, the second type light source 112 emits white light with a low color temperature, so that the lighting module 50 obtains a lighting effect of low rhythm stimulation, therefore, the second type light source 112 is a cold white light source or a warm white light source, so that lighting can be realized, and accordingly, the lighting module 50 can be applied to a panel lamp.

In addition, when the second light source 112 is a warm white light source, the first light source 111 and the second light source 112 are mixed and then emitted through the floodlight component, and the light intensity of the second light source 112 is greater than that of the first light source 111, so that the light emitted after the first light source 111 and the second light source 112 are mixed can be close to cool white light under the condition of a specific light intensity ratio, and a high color temperature illumination effect is obtained, and accordingly, the illumination module 50 can still be applied to a panel lamp.

In summary, when the second type light source 112 is a warm white light source or a cold white light source, the lighting module 50 can achieve the above-mentioned lighting function.

It should be noted that the illumination not only has visual effect, but also produces non-visual biological effect, and has influence on human body circadian rhythm. Therefore, the requirement for light of a predetermined color may vary according to the operation mode of the lighting module 50. For example, the light emitting unit 100 is required to emit light of a preset color with a higher rhythm stimulation during the daytime to improve alertness of a person and keep the person awake, and emit light with a lower rhythm stimulation during the night to avoid unreasonable rhythm stimulation and reduce influence on sleep, so that the visual dimension requirement and the comfort requirement of the user are met, and the light environment quality conforming to rhythm health is provided for the user.

Thus, in this embodiment, the second type of light sources 112 are warm white light sources, such that the light emitted by the second type of light sources 112 has a lower rhythm stimulation. Correspondingly, when the working mode is the night mode, the preset color is low color temperature white light.

The rhythm stimulation of the warm white light is low, so that the light emitted by the second-type light source 112 can be dispersed and guided out, and the light can be used for night illumination, and low-color-temperature white light can be obtained, so that the low rhythm stimulation can be obtained during illumination, and the night rhythm illumination function of a night mode can be realized.

Or, when the light emitted by the first-type light source 111 and the light emitted by the second-type light source 112 are mixed and then divergently led out, and the light emitting intensity of the second-type light source 112 is made to be greater than the light emitting intensity of the first-type light source 111 (that is, the light emitting intensity ratio of the first-type light source 111 to the second-type light source 112 is small), under the condition of a specific light emitting intensity ratio, the light emitted by the first-type light source 111 and the light emitted by the second-type light source 112 after being mixed can have low rhythm stimulation while realizing night lighting, thereby realizing the night mode circadian rhythm lighting function.

It is understood that, in the first light source 110, when the first light source 111 is turned off and only the second light source 112 is turned on, the color temperature of the light emitted by the first light source 110 is the lowest, and the color temperature of the light emitted by the first light source 110 gradually increases with the increase of the blue light, and the rhythm stimulation is correspondingly gradually increased, so that even if the first light source 111 is turned on, the light emitted by the first light source 110 can still have a lower color temperature and obtain a lower rhythm stimulation as long as the ratio of the luminous intensities of the first light source 111 and the second light source 112 is reasonably set.

Therefore, in the present embodiment, by using the light emitting unit 100 having the first type light source 111 and the second type light source 112, and the second type light source 112 is a warm white light source, the lighting module 50 can not only meet the lighting requirements of the daytime mode and the nighttime mode, but also emit light with higher rhythm stimulation in the daytime and emit light with lower rhythm stimulation at night, so as to avoid unreasonable rhythm stimulation at night and reduce the influence on sleep, so that the requirement of the human body on the stimulation of the circadian rhythm of illumination can be met based on the circadian rhythm effect, that is, the lighting module 50 integrates the flood lighting function and the rhythm lighting function, so that the lighting module 50 can be used for preparing the circadian rhythm healthy lighting lamp with multiple lighting functions, thereby improving the illumination performance and the user experience. This is also advantageous for the lighting module 50 to have a wider application prospect, for example, the lighting module 50 is more suitable for clinical phototherapy, submarines, aviation and other special occasions and fields.

Wherein, the circadian rhythm effect of light refers to: light is conducted through signals of photosensitive retinal ganglion cells (iprgcs) and is used as a main time-service factor to participate in rhythm control, control secretion of cortisol and melatonin, regulate heart rate, body temperature, alertness, sleep/wake and other physiological activities and generate a series of non-visual biological effects. In order to maintain the normal operation of various physiological functions of a human body, sufficient illumination stimulation is received in the daytime, the interference of excessive illumination on rhythm is avoided as much as possible at night, otherwise, the sleep efficiency and the sleep structure are influenced, a series of health problems such as sleep disorder and the like are caused, and a series of problems such as rhythm disorder, endocrine disorder, mood disorder and the like are easily caused when the human body is in a light environment without reasonable rhythm stimulation for a long time.

Based on the photosensitive property of ipRGC, american WELL building standards recommend the melanin equivalent lux (EML) as a core evaluation index for the illumination rhythm effect. To ensure the rhythmic health of users in space, the WELL building standard recommends: when the EML value of daytime illumination is at least 150, it is scored as 1 point, and when the EML value of daytime illumination is at least 240, it is scored as 3 points. In order to maintain a good rhythm effect, human eyes receive rhythm stimulation as high as possible in the daytime, namely, the EML value is as high as possible; during the night, the human eye receives as low a rhythm stimulation as possible, i.e. the EML value is as low as possible.

Similarly, the Commission on International illumination De L'

CIE) proposed a melanoidin equivalent daylight illumination (D65) illuminance, melanopic EDI) for evaluation of the rhythmic effect of light. The EML and the melanopic EDI have no obvious difference in nature, and a certain conversion relation also exists between the numerical values. Specifically, melanopic EDI = EML × γ, γ is a constant and a value of 0.9063, and γ is a conversion relationship between the EML value and the melanopic EDI value.

In this example, an EML model was selected to evaluate the rhythmic stimulation effect.

It should be noted that, in the present embodiment, only the first-type light source 111 and the second-type light source 112 are needed, so that the lighting module 10 can meet the lighting requirements of the daytime mode and the nighttime mode, and simultaneously meet the requirement of the human body for stimulation of the circadian rhythm of illumination, so that the structure of the lighting module 50 is simple, the manufacturing process is simple, and accordingly, the manufacturing cost of the lighting module 50 is reduced.

It should be further noted that, compared with the scheme that the blue sky visual effect is realized by using the white light source, the blue curtain and the light guide plate, the blue curtain is not required to be used in this embodiment, so that the blue curtain is prevented from absorbing light, and the lighting effect of the lighting module 50 is further improved.

Moreover, the second-class light source 112 is a warm white light source, and the warm white light source is selected for illumination at night, so that the color rendering property is high; moreover, by selecting a specific warm white light spectrum, lower rhythm stimulation and higher color rendering are easily obtained, for example, according to the metamerism principle, white light with the same color temperature and higher color rendering can achieve the same visual effect but with lower rhythm stimulation through spectrum design.

In addition, by selecting the first type of light source capable of emitting blue light, the blue light with at least one peak positioned in a specific wave band is easy to select, better sky color and sky feeling are presented, and enough rhythm stimulation is provided in a daytime mode.

In this embodiment, the first-type light source 111 is a monochromatic light source, and the monochromatic light source is a blue light source, so that blue light can be emitted. Specifically, when the first-type light source 111 is a monochromatic light source, the peak wavelength value is in a range of 465nm (nanometers) to 485nm in the spectrum of the first-type light source 111. For example, the peak wavelengths are 470nm, 472nm, 475nm, 480nm, and the like.

Referring to fig. 2 in combination, fig. 2 is a spectral luminous efficiency response curve of melanophore, with the abscissa representing wavelength (nm) and the ordinate representing spectral luminous efficiency response of melanophore. As can be seen in fig. 2, the photosensitive retinal ganglion cells (iprgcs) of the human eye are most sensitive to light having a wavelength around 480nm, i.e., light stimuli with a peak around 480nm are effective in providing higher rhythmic stimuli.

Therefore, the embodiment is beneficial to obtaining higher rhythm stimulation by selecting the blue light source with the wavelength peak value of 465nm to 485 nm. Specifically, a blue light source with a wavelength peak value of 465nm to 485nm is selected, so that higher rhythm stimulation can be provided, the work efficiency of a user is improved in the daytime, the user is kept in a clear and alert state, and the work enthusiasm and the work concentration are promoted. Moreover, in the embodiment, the blue light source with the wavelength peak value of 465nm to 485nm is selected, so that the color saturation and the hue of the light with the preset color corresponding to the daytime mode can be controlled within a reasonable range, and a more real blue sky visual effect can be obtained.

Specifically, referring to fig. 3 in conjunction, fig. 3 is a schematic diagram of a light source located at a color coordinate point of the CIE chromaticity diagram. CIE defined a digital system for color in 1931 that allowed the calculation of color points, called color coordinates, from the spectrum of color stimuli (i.e. light sources or light reflected from colored surfaces). The color coordinates define the position of the color stimulus in the color horseshoe diagram in fig. 3, wherein the x-coordinate and the y-coordinate correspond to the values of the abscissa and the ordinate, respectively, of the color horseshoe. All visible colors correspond to one coordinate value.

The outer boundary L1 of the horseshoe-shaped color in fig. 3 represents the color of monochromatic light of different wavelengths.

Specifically, on the chromaticity diagram, based on the color coordinates of any two light sources, the color point positions of the two light sources can be determined to be the point a and the point B, and after the two light sources mix light, by adjusting the luminous intensity ratio of the two light sources, any color on the connection line formed by the point a and the point B can be realized, that is, the color of the light emitted after mixing light can be changed along the connection line. For example, when two light sources are mixed, light of a color having a color point position C can be obtained under a condition of a specific emission intensity ratio.

Therefore, in the embodiment, the blue monochromatic light source with the wavelength peak value at the 465 nm-485 nm wavelength band is selected, and the blue light source and the white light source are mixed to obtain the color simulating the blue sky, so that the blue sky visual effect is obtained, and the visual effect is more real.

In other embodiments, the first type light source may also be a composite light source, and the spectrum of the composite light source has a wavelength range of blue light. Accordingly, when the first type of light source is a composite light source, at least one wavelength peak in the spectrum of the first type of light source is in the range 465nm to 485 nm. For example, at least one of the wavelength peaks is 470nm, 480nm, etc.

At least one part of light in the spectrum of the composite light source is obtained by exciting fluorescent powder, and the principle of the composite light source is as follows: the fluorescent powder is excited by light with a first wavelength to realize light conversion, and the light with the first wavelength is converted into light with a second wavelength. As an example, the composite light source is obtained by exciting the phosphor with a blue monochromatic light source, or the composite light source is obtained by exciting the phosphor with a purple monochromatic light source. When the purple monochromatic light source excites the fluorescent powder, the fluorescent powder excites and absorbs all purple light emitted by the purple monochromatic light source.

It should be noted that, in other embodiments, according to the type of the first type light source and the requirement of the use scene, in the daytime mode, only the first type light source may be adopted to obtain the blue-sky visual effect. For example, when the first type light source is a composite light source, only the first type light source may be adopted to obtain the blue-sky visual effect.

In this embodiment, the second type light source 112 is a warm white light source, and the warm white light source is a low color temperature light source.

According to the principle of circadian rhythm effect, at night, by reducing blue light in a light source or reducing color temperature of light, light rhythm stimulation is easily reduced, thereby achieving effects of promoting sleep, adjusting time difference, and the like. Therefore, in the embodiment, the warm white light source is selected, so that the circadian rhythm stimulation adjustment can be realized, and the internal biological rhythm period of the human body can be calibrated to be synchronous with the earth rotation period, so that the regular running of various physiological functions of the human body can be maintained. Moreover, the first-class light source 111 is used for emitting blue light, and light with a preset color simulating a blue sky can be obtained by mixing the first-class light source 111 and the warm white light source, so that the blue sky visual effect is more real.

As can be seen from fig. 3 and the above description, on the chromaticity diagram, the color point positions of two light sources can be determined as point a and point B, respectively, based on the color coordinates of any two light sources, and after the two light sources are mixed, any color on the connecting line formed by point a and point B can be realized. Specifically, by adjusting the light emitting intensity ratios of the first type light source 111 and the second type light source 112, a desired color is selected on a connection line formed by the points a and B, that is, each light emitting intensity ratio corresponds to a color point coordinate, thereby obtaining a blue sky landscape in the daytime mode, and by adjusting the light emitting intensity ratios of the first type light source 111 and the second type light source 112, the visual effect of the blue sky layer is adjusted.

It should be noted that, in the second type of light source 112, the color temperature of the warm white light source should not be too high, and should not be too low. If the color temperature of the warm white light source is too high, the rhythm stimulation of light is easily caused to be too large, so that the lower rhythm stimulation is difficult to obtain at night; if the color temperature of the warm white light source is too low, the light tends to be yellow in the night illumination mode, thereby reducing the user experience. For this reason, in the present embodiment, the color temperature of the warm white light source is 1800K to 4000K. For example, the color temperature of the warm white light source is 2250K, 2300K, 2350K, 2400K, 2450K, 2500K, 3000K, 3300K, etc.

With reference to table one, the color coordinates and EML values of the light for different lighting effects are shown. Specifically, the first-type light source 111 is a blue monochromatic LED with a peak wavelength of 475nm, and the second-type light source 112 is a warm white LED with a color temperature of 2700K.

Referring to table one, in the night mode, when the first type light source 111 is turned off and the second type light source 112 is turned on, the color coordinates of the light emitted by the first light source 110 are (0.4527, 0.4054), so that a lighting effect of low color temperature is obtained. Specifically, under the condition that the light intensity is 100lx (lux), the EML value is 50, and therefore, a lower rhythm stimulation can be obtained.

Referring to table one, in the daytime mode, when the first-type light source 111 and the second-type light source 112 are turned on, and the light emitting intensity ratio of the first-type light source 111 and the second-type light source 112 is adjusted, so that the color coordinates of light emitted after the first-type light source 111 and the second-type light source 112 are mixed are (0.1363, 0.1428), and thus a lighting effect of a blue sky is obtained, and a sky impression is good. Specifically, the EML value is 570 under the condition that the light intensity is 100lx, and therefore, a high rhythm stimulation can be obtained.

It should be noted that, in the actual use process, in the daytime mode, by adjusting the light emitting intensity ratio of the first-type light source 111 and the second-type light source 112, the light emitted after the first-type light source 111 and the second-type light source 112 are mixed can be close to cold white light, so that a high color temperature illumination effect can be obtained, which correspondingly improves the functional flexibility of the illumination module.

For example, referring to table one, the color coordinates of the light emitted by the first type light source 111 and the second type light source 112 after mixing are (0.2593, 0.2321), and the EML value is 234 under the condition that the illumination intensity is 100lx, so that the illumination module 50 can be applied to a panel lamp.

Watch 1

With reference to table two, the color coordinates and EML values corresponding to the light with different color temperatures emitted by the first light source 110 when the first type light source 111 and the second type light source 112 are turned on simultaneously in the night mode are shown.

Specifically, the first-type light source 111 is a blue monochromatic light LED with a peak wavelength of 475nm, and the second-type light source 112 is a warm white light LED with a color temperature of 2700K.

In the night mode, the first and second type light sources 111 and 112 are turned on, and the ratio of the light emitting intensities of the first and second type light sources 111 and 112 is adjusted to a lower range, at which time the light emitting intensity of the second type light source 112 is greater than the light emitting intensity of the first type light source 111, thereby obtaining a lower rhythm stimulation.

For example, referring to table two, under a condition of a specific luminous intensity ratio, the color temperature of the light emitted by the first type light source 111 and the second type light source 112 after mixing is 2793K, and the color coordinate is (0.4469, 0.3984), so as to obtain a lighting effect with a low color temperature. Specifically, under the condition that the light intensity is 100lx (lux), the EML value is 54, and therefore, a lower rhythm stimulation can be obtained.

Alternatively, referring to table two, under the condition of another specific luminous intensity ratio, the color temperature of the light emitted by the first type light source 111 and the second type light source 112 after mixing light is 3121K, and the color coordinate is (0.4175, 0.3767), so as to obtain the lighting effect of low color temperature. Specifically, under the condition that the illumination intensity is 100lx (lux), the EML value is 72, and the lower rhythm stimulation can still be obtained.

Watch two

Color temperature	EML/100lx	x	y
				2793K	54	0.4469	0.3984
3121K	72	0.4175	0.3767

In this embodiment, the plurality of first light sources 110 are arranged along a first direction (as shown in the X direction in fig. 1), the first type light source 111 includes a plurality of first sub light sources 111a, the second type light source 112 includes a plurality of second sub light sources 112a, and the first sub light sources 111a and the second sub light sources 112a are alternately arranged along the first direction. Wherein the flood light element 120 has a thickness, and the first direction is: the length or width of the flood element 120.

By alternately arranging the first sub light sources 111a and the second sub light sources 112a in the first direction, the brightness uniformity and the color uniformity of the light emitted by the light emitting unit 100 can be improved.

The floodlight component 120 is disposed on the light path of the first light source 110, and the light emitted by at least one of the first-type light source 111 and the second-type light source 112 is divergently led out after passing through the floodlight component 120. That is, when only the first light source 111 is turned on, the light emitted by the first light source 111 is emitted and guided out through the floodlight component 120, when only the second light source 112 is turned on, the light emitted by the second light source 112 is emitted and guided out through the floodlight component 120, and when both the first light source 111 and the second light source 112 are turned on, the light emitted by the first light source 111 and the light emitted by the second light source 112 are mixed and then emitted and guided out through the floodlight component 120.

By using the floodlight component 120, the light emitted by at least one of the first-type light source 111 and the second-type light source 112 is divergently led in various directions after passing through the floodlight component 120, so that the light-emitting unit 100 has a larger illumination angle, thereby obtaining a larger illumination area range, and further, a blue-sky visual effect can be obtained in a daytime mode.

The floodlight unit 120 includes a light guide plate, a light diffusion plate, or a nano light guide plate. In particular, the type of the floodlight element 120 depends on the position of the first light source 110 in the lighting unit 100. In this embodiment, the first light source 110 is disposed on at least one side of the floodlight component 120, and thus, the floodlight component 120 is a light guide plate.

In this embodiment, along the thickness direction of the floodlight component 120, the floodlight component 120 has a first light emitting surface (not labeled). The light emitting surface of the light guide plate has a Dot pattern (Dot pattern), and when light emitted from the first light source 110 enters the light guide plate, the light is totally reflected inside the light guide plate and is emitted from the first light emitting surface after contacting the Dot pattern. In other embodiments, when the first light source is disposed on at least one side edge of the floodlight component, the floodlight component can also be a nanometer light guide plate. The nanometer light guide plate is formed by adding nanometer particles in the light guide plate, so that the uniformity of mixed light is improved.

The first light emitting surface here refers to: the surface of the floodlight element 120 facing the environment to be illuminated, that is, the first light emitting surface is farther away from the bottom of the housing of the lamp when the lighting module 50 is applied to the lamp.

As an example, the first light sources 110 are disposed on two opposite sides of the floodlight component 120, so as to improve the brightness uniformity and the color uniformity of the illuminating light, and further, the number of the first light sources 110 is advantageously reduced, so as to reduce the manufacturing cost of the lighting module 50.

In other embodiments, the first light source may also be disposed below the first light guide element along the emitting direction of the first light source.

In other embodiments, the plurality of first light sources may also be arranged in a matrix along a first direction and a second direction, and the first sub light sources and the second sub light sources are alternately arranged along the first direction or the second direction, and the first direction is perpendicular to the second direction. For example, when the first light source is arranged on at least one side edge of the floodlight component, the first direction is a length direction or a width direction of the floodlight component, and the second direction is a thickness direction of the floodlight component; or, when the first light source is arranged below the first light guide element, the first direction is the length direction of the floodlight element, and the second direction is the width direction of the floodlight element.

Referring to fig. 4 and 5 in combination, fig. 4 is a schematic structural diagram of a second embodiment of the illumination module of the present invention, and fig. 5 is a schematic distribution diagram of an embodiment of the first light source in fig. 4.

The same points of the embodiments of the present invention as those of the previous embodiments are not described herein again, and the embodiments of the present invention are different from the previous embodiments in that: as shown in fig. 4, in the light emitting unit 200, the first light source 210 is disposed below the floodlight component 220 along the emitting direction (as shown in the Z direction in fig. 4) of the first light source 210.

In this embodiment, the first light source 210 is disposed below the floodlight element 220, and thus, the floodlight element 220 is a light diffusion plate. The light-diffusing sheet has sufficient light transmittance and light diffusibility. Specifically, after the light emitted from the first light source 210 enters the light-diffusing plate, the light-diffusing plate continuously refracts, reflects and scatters light among the chemical particles, thereby forming a uniform light-diffusing effect.

As shown in fig. 5, as an example, the plurality of first light sources 210 are arranged in a matrix along a first direction (shown as an X direction in fig. 5) and a second direction (shown as a Y direction in fig. 5), the first-type light source 211 includes a plurality of first sub light sources 211a, the second-type light source 212 includes a plurality of second sub light sources 212a, and the first sub light sources 211a and the second sub light sources 212a are alternately arranged along the first direction or the second direction, and the first direction is perpendicular to the second direction.

By adopting a matrix arrangement manner, and enabling the first sub light sources 211a and the second sub light sources 212a to be alternately arranged along the first direction or the second direction, the brightness uniformity and the color uniformity of light emitted by the light emitting unit are improved.

For a specific description of the illumination module in this embodiment, reference may be made to the corresponding description in the foregoing embodiments, and details are not repeated herein.

Referring to fig. 6 and 7 in combination, fig. 6 is a schematic structural diagram of a lighting module according to a third embodiment of the present invention, and fig. 7 is a schematic structural diagram of an embodiment of a second light emitting module in fig. 6.

The same parts of the embodiments of the present invention as those of the previous embodiments are not described herein again, and the differences between the embodiments of the present invention and the previous embodiments are: the lighting module 20 further includes: a second light emitting module 300, stacked with the first light emitting module 330, and arranged along a light emitting direction of at least one of the first type light source (not shown) and the second type light source (not shown) after transmitting through the floodlight element (not labeled), wherein the second light emitting module 300 is located above the first light emitting module 330, the second light emitting module 300 includes a light guide element 320 and a second light source 310, the second light source 310 is configured to emit white light, the light guide element 320 is disposed on a light path of the second light source 310, and light emitted by the second light source 310 is guided out in a preset direction after transmitting through the light guide element 320.

In the light emitting unit of the first light emitting module 330, the floodlight element disperses and guides out light emitted by the first light source, in the second light emitting module 300, the light guide element 320 guides out light of the second light source 310 in a predetermined direction, and the second light source 310 is configured to emit white light, so that when the second light source 310 is turned on, the second light emitting module 300 can guide out parallel light or near parallel light in a predetermined direction, so as to generate natural light spots, thereby enhancing scene reality and creating a good lighting atmosphere (for example, a scene in which sunlight is irradiated into a room through a skylight, or a scene in which the sun is hung on a blue sky) can be presented.

Therefore, by using the second light-emitting module 300, the lighting module 20 integrates a flood lighting function, a directional lighting function and a rhythm lighting function, and accordingly, the lighting module 20 can be used for preparing a circadian rhythm health lighting fixture with multiple lighting functions, and the lighting module 20 can obtain different types of daytime lighting modes (a mode with light spots and a mode without light spots), so as to further improve the illumination performance and the user experience.

In this embodiment, the second light emitting module 300 is located above the first light emitting module 330 along a light emitting direction of the light emitted from at least one of the first light source (not shown) and the second light source (not shown) after passing through the floodlight component (not shown). That is, when the lighting module is applied to a lamp, the first light-emitting module 330 is disposed at a position closer to the bottom of the housing of the lamp than the second light-emitting module 300.

Accordingly, the floodlight component diffuses the guided light and illuminates the guided light after transmitting through the light guide component 320.

The second light emitting module 300 is located above the first light emitting module 330, so as to prevent the floodlight element from affecting the direction of the light path of the light emitted by the second light source 310 after passing through the light guiding element 320, and further ensure that the second light emitting module 300 can directionally guide out the parallel light or the near-parallel light.

In this embodiment, the second light emitting module 300 has an independent second light source 310, so that the light emitting unit 330 can independently use the first light source to generate light with a preset color, thereby reducing the influence of the second light emitting module 300 on the blue sky visual effect.

In this embodiment, the second light source 310 is used for emitting white light, so as to generate light spots to create a scene that sunlight penetrates through a skylight.

As an example, the second light source 310 is disposed on at least one side of the light guide element 320. As shown in fig. 7, the second light sources 310 are disposed on two opposite sides of the light guide element 320.

In this embodiment, along the thickness direction of the light guide element 320, the light guide element 320 has a second light emitting surface (not labeled). The light guiding element 320 collimates the light emitted by the second light source 310, so that the second light source 310 is guided out from the second light emitting surface in a predetermined direction after passing through the light guiding element 320, and therefore the light generated by the second light source 310 after passing through the light guiding element 320 is directional parallel light or near parallel light.

The second light emitting surface here refers to: the light guiding element 320 faces the face of the environment to be illuminated. That is to say, when the lighting module is applied to a lamp, the second light emitting surface is further away from the bottom of the housing of the lamp.

For the specific description of the illumination module in this embodiment, reference may be made to the corresponding description in the foregoing embodiments, and details are not repeated herein.

Referring to fig. 8, fig. 8 is a schematic structural diagram of a lighting module according to a fourth embodiment of the present invention.

The same points of the embodiments of the present invention as those of the previous embodiments are not described herein again, and the embodiments of the present invention are different from the previous embodiments in that: the first light-emitting module 540 further includes: a haze layer 550, wherein the haze layer 550 is located above the light emitting unit 530, along a light emitting direction of the light emitted from at least one of the first type light source (not shown) and the second type light source (not shown) after transmitting through the floodlight component (not shown).

The light emitted by the light emitting unit 530 is guided out after passing through the haze layer 550, and the haze layer 550 can further diffuse the light integrally to realize further homogenization of the light, thereby improving the sky impression.

Referring to fig. 9, fig. 9 is a functional block diagram of a lamp according to an embodiment of the invention.

The light fixture 600 includes: the lighting module 60 provided by the embodiment of the present invention; a control module 70 comprising a first control unit 71, wherein the first control unit 71 is configured to control the luminous intensity ratios of the first and second light sources such that the luminous intensity ratios of the first and second light sources are configured to: the first light source emits light of the preset color corresponding to the working mode.

Because the lighting module 60 of this embodiment can not only realize the blue-sky visual effect and the lighting function in the daytime mode, but also realize the lighting function in the nighttime mode, therefore, the control module 70 is provided in the lamp 600, and the first type light source and the second type light source are controlled by the first control unit 71 in the control module 70, so that the first light source emits light of a preset color corresponding to the working mode, thereby enabling the lamp 600 to have the functions of lighting and realizing the blue-sky visual effect at the same time, and further improving the lighting performance and the user experience of the lamp 600.

Specifically, the second type light source is a warm white light source, the lighting module 60 can not only meet the lighting requirements of the daytime mode and the night mode, but also meet the requirement of the human body for stimulation of the circadian rhythm of illumination, so that the lamp 600 further has the function of regulating the stimulation requirement of the circadian rhythm of the human body, and the lamp 600 is a healthy circadian rhythm lighting lamp with multiple lighting functions, thereby further improving the lighting performance and the user experience of the lamp 600.

Referring to fig. 10 in combination, fig. 10 is a schematic diagram of a preset color range of light corresponding to a daytime mode in the luminaire shown in fig. 9. In this embodiment, when the operation mode of the illumination module 60 is the daytime mode, the first control unit 71 controls the light emitting intensity ratio of the first-type light source and the second-type light source, so that the light emitting intensity ratio of the first-type light source and the second-type light source is configured to: the color coordinates of the preset color are located in a preset color range (i.e., an area indicated by a dashed box in fig. 10) in the chromaticity diagram, the preset color range is defined by straight line segments formed by sequentially connecting a first color point c, a second color point d, a third color point e and a fourth color point f, and the color coordinates of the first color point c, the second color point d, the third color point e and the fourth color point f are (0.16, 0.27), (0.067, 0.2), (0.14, 0.034) and (0.23, 0.134), respectively.

By making the preset color of the light corresponding to the daytime mode within the preset color range, a more realistic blue sky visual effect is obtained.

As an example, the first control unit 71 may control both the first type light source and the second type light source to be turned on, and adjust the light intensity ratio of the first type light source and the second type light source to a specific value, so that the lights emitted by the first type light source and the second type light source are mixed and then divergently guided by the floodlight element, thereby obtaining a preset color light simulating a blue sky to achieve a blue sky visual effect, and the blue light has a higher rhythm stimulation, so that the preset color light can provide a higher rhythm stimulation to achieve an daytime mode illumination.

In other embodiments, when the operating mode of the lighting module is a daytime mode, the first control unit may also control the first type light source to be turned on, and the second type light source to be turned off.

In other embodiments, when the second type light source is a cold white light source, the first control unit may also control the first type light source to be turned off and the second type light source to be turned on when the operating mode of the lighting module is a daytime mode.

In this embodiment, when the operation mode of the lighting module 60 is the night mode, the first control unit 71 controls the first type light source to be turned off, and the second type light source to be turned on.

When the first light source is turned off, that is, the blue light source is turned off, the second light source is turned on, and light emitted by the second light source is divergently led out, so that the lamp 600 can be used for night illumination.

Moreover, the second type of light source is a warm white light source, so that low color temperature white light can be obtained, and therefore, lower rhythm stimulation can be obtained during illumination, and the circadian rhythm illumination function of a night mode is further realized.

In other embodiments, when the operating mode of the lighting module is the night mode, the first control unit may also control the first type light source and the second type light source to be turned on according to a requirement of a user or a requirement of a use scene.

As an example, when the second type light source is a warm white light source, the first control unit controls the luminous intensity ratio of the first type light source and the second type light source such that the luminous intensity ratio of the first type light source and the second type light source is configured to: the color temperature of the light emitted by the first light source is less than or equal to 4000K.

As is apparent from the above description, the ratio of the light emission intensities of the first and second light sources affects not only the color of the light emitted by the first light source but also the rhythm stimulation of the light emitted by the first light source, and the larger the ratio of the light emission intensities of the first and second light sources (i.e., the more blue light), the higher the rhythm stimulation of the light emitted by the first light source. Therefore, when the light emitted by the first light source and the light emitted by the second light source are mixed and then divergently led out, the light emitted by the first light source still has a lower color temperature by reasonably setting the luminous intensity ratio of the first light source and the second light source, so that the light emitted by the first light source has a lower rhythm stimulation.

Specifically, if the color temperature of the warm white light source is 1800K to 4000K, the first control unit controls the luminous intensity ratio of the first type light source and the second type light source such that the luminous intensity ratio of the first type light source and the second type light source is configured to: the color temperature of the light emitted by the first light source is 1800K to 4000K.

In this embodiment, the control module 70 further includes a second control unit 72, and the second control unit 72 is configured to adjust the light intensities of the first type light source and the second type light source under the condition of the same light intensity ratio.

In the using process of the lamp 600, after the light intensity ratio of the first type light source and the second type light source is adjusted to a specific value, the light intensity ratio of the first type light source and the second type light source can be adjusted by the second control unit 72 under the condition that the fixed light intensity ratio is not changed, so as to meet different requirements of users on visual effects. Therefore, the functional flexibility of the luminaire 600 is high.

As an example, the second control unit 72 is configured to adjust the light emitting intensities of the first type light source and the second type light source simultaneously.

In this embodiment, the lighting module 60 further includes: the second light emitting module 62 is stacked with the first light emitting module 61, and along a light emitting direction of light emitted by at least one of the first type of light source and the second type of light source after penetrating through the floodlight element, the second light emitting module 62 is located above the first light emitting module 61, the second light emitting module 62 includes a light guide element and a second light source, the second light source is used for emitting white light, the light guide element is arranged on a light path of the second light source, and light emitted by the second light source is guided out directionally according to a preset direction after penetrating through the light guide element.

The second light-emitting module 62 allows the daytime mode to include a first daytime mode and a second daytime mode.

Correspondingly, the control module 70 further includes a third control unit 73, and the third control unit 73 is further configured to control the second light source to be turned on and to adjust the light-emitting intensity of the second light source in the first daytime mode, and is further configured to control the second light source to be turned off in the second daytime mode.

Specifically, according to the user's usage requirement, when the second light source is turned on, the second light emitting module 62 can direct and derive parallel light or near parallel light, so as to generate natural light spots, thereby enhancing the scene reality and creating a good lighting atmosphere (for example, a scene in which sunlight is irradiated into a room through a skylight, or a scene in which the sun is hung on a blue sky can be presented). Therefore, by controlling the second light emitting module 62 through the third control unit 73, different types of daytime lighting modes (a mode with light spots and a mode without light spots) can be obtained, thereby further improving the illumination performance and the user experience.

Moreover, the third control unit 73 can also adjust the light emitting intensity of the second light source to adjust the brightness of the light spot, thereby satisfying the visual requirements of the user.

In this embodiment, the control module 70 is coupled to the lighting module 60, so as to control the lighting module 60.

Specifically, the control module 70 may be coupled to the lighting module 60 through one or both of a wired connection (e.g., a wired connection) and a wireless connection (e.g., WIFI).

As an example, the control module is a touch slide control module, and correspondingly, each control unit in the control module 70 is a touch slide control unit, and is configured to sense a slide track of a finger, and perform control according to the slide track, so as to obtain light with a color matched with an operating mode.

In other embodiments, the control module may also be a touch button.

In other embodiments, the control module may also implement a control function in a human-computer interaction manner.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An illumination module, comprising:

the first light-emitting module comprises a light-emitting unit and a plurality of first light sources, the first light sources are used for emitting light with preset colors, the preset colors correspond to the working modes of the lighting module, the working modes comprise a daytime mode and a night mode, and the floodlight element is arranged on the light path of the first light sources;

the first light source comprises a first light source and a second light source, the first light source is used for emitting blue light, the second light source is used for emitting white light, and light emitted by at least one of the first light source and the second light source is diffused and guided out after penetrating through the floodlight element.

2. The lighting module of claim 1 wherein the second type of light source is a warm white light source, the warm white light being white light having a color temperature of 4000K or less.

3. The lighting module of claim 1 wherein the first type of light source is a monochromatic light source and the monochromatic light source is a blue light source, or wherein the first type of light source is a composite light source having a spectrum with a wavelength range of blue light.

4. The illumination module according to claim 3, wherein the first-type light source is a monochromatic light source, and a peak wavelength value in a spectrum of the first-type light source is in a range of 465nm to 485 nm;

or the first type light source is a composite light source, and at least one wavelength peak in the spectrum of the first type light source is in the range of 465nm to 485 nm.

5. The lighting module of claim 2, wherein the warm white light source has a color temperature of 1800K to 4000K.

6. The lighting module of claim 1, wherein the first light source is disposed on at least one side of the floodlight component;

or, along the emergent direction of the first light source, the first light source is arranged below the floodlight component.

7. The lighting module of claim 6, wherein the first light source is disposed on opposite sides of the luminaire member.

8. The illumination module according to claim 1 or 6, wherein the plurality of first light sources are arranged along a first direction, the first type light source comprises a plurality of first sub light sources, the second type light source comprises a plurality of second sub light sources, and the first sub light sources and the second sub light sources are alternately arranged along the first direction;

or, the plurality of first light sources are arranged in a matrix along a first direction and a second direction, the first type light source includes a plurality of first sub light sources, the second type light source includes a plurality of second sub light sources, and along the first direction or the second direction, the first sub light sources and the second sub light sources are alternately arranged, and the first direction is perpendicular to the second direction.

9. The lighting module of claim 1, wherein the floodlight component comprises a light guide plate, a light diffuser plate or a nano-light guide plate.

10. The lighting module of claim 1, wherein the first lighting module further comprises: and the haze layer is positioned above the light-emitting unit along the light-emitting direction of the light emitted by at least one of the first-class light source and the second-class light source after the light transmits through the floodlight component.

11. The lighting module according to claim 1 or 2, wherein when the operation mode is a daytime mode, the preset color is a color simulating a blue sky;

and when the working mode is a night mode, the preset color is white light.

12. The lighting module of claim 1 wherein the type of first light source comprises an LED light source.

13. The lighting module of claim 1, wherein the lighting module further comprises: the second light-emitting module is arranged in a stacked manner with the first light-emitting module and is positioned above the first light-emitting module along the light-emitting direction of light emitted by at least one of the first light source and the second light source after penetrating through the floodlight element, the second light-emitting module comprises a light guide element and a second light source, the second light source is used for emitting white light, the light guide element is arranged on the light path of the second light source, and the light emitted by the second light source is guided out directionally according to a preset direction after penetrating through the light guide element.

14. A light fixture, comprising:

a lighting module as defined in any one of claims 1 to 13;

a control module comprising a first control unit for controlling the luminous intensity ratio of the first and second light sources such that the luminous intensity ratio is configured to: the first light source emits light of the preset color corresponding to the working mode.

15. The lamp of claim 14, wherein when the operation mode of the lighting module is a daytime mode, the first control unit controls the luminous intensity ratio of the first type light source and the second type light source such that the luminous intensity ratio of the first type light source and the second type light source is configured to: the color coordinates of the preset color are located in a preset color range in a chromaticity diagram, the preset color range is defined by straight line segments formed by sequentially connecting a first color point, a second color point, a third color point and a fourth color point, and the color coordinates of the first color point, the second color point, the third color point and the fourth color point are (0.16, 0.27), (0.067, 0.2), (0.14, 0.034) and (0.23, 0.134), respectively.

16. The lamp as claimed in claim 14, wherein when the operation mode of the lighting module is night mode, the first control unit controls the first type of light source to be turned off and the second type of light source to be turned on; or the first control unit controls the first type light source and the second type light source to be started.

17. The luminaire of claim 16, wherein the second type of light source is a warm white light source, the warm white light being white light having a color temperature of less than or equal to 4000K;

the first control unit controls the luminous intensity ratio of the first type light source and the second type light source to be configured as follows: the color temperature of the light emitted by the first light source is less than or equal to 4000K.

18. A luminaire as claimed in claim 14, characterized in that said control module further comprises a second control unit for adjusting the luminous intensities of said first and second light sources under the same luminous intensity ratio.

19. The luminaire of claim 14, wherein the daytime mode comprises a first daytime mode and a second daytime mode;

the lighting module further comprises: the second light-emitting module is arranged in a laminated manner with the first light-emitting module and is positioned above the first light-emitting module along the light-emitting direction of light emitted by at least one of the first light source and the second light source after penetrating through the floodlight element, the second light-emitting module comprises a light guide element and a second light source, the second light source is used for emitting white light, the light guide element is arranged on the light path of the second light source, and the light emitted by the second light source is guided out directionally according to a preset direction after penetrating through the light guide element;

the control module further comprises a third control unit, wherein the third control unit is used for controlling the second light source to be turned on and adjusting the luminous intensity of the second light source in the first daytime mode, and is also used for controlling the second light source to be turned off in the second daytime mode.

20. The luminaire of claim 14, wherein the control module is coupled to the lighting module by one or both of a wired connection and a wireless connection.

21. The luminaire of claim 14, wherein said control module is a touch slide control module.