TWI734047B - Light care system and light care method - Google Patents

Abstract

A light care system including a physiological sensing device, a processor, and a light source device is provided. The physiological sensing device is adapted to acquire physiological data of a user. The processor is coupled to the physiological sensing device, and the processor acquires at least one light parameter corresponding to the physiological data according to the physiological data. The light source device is coupled to the processor, and the light source device outputs a light beam according to the at least one light parameter, wherein a green light beam or a blue light beam in the light beam accounts for more than 40% of the light beam. A light care method is also provided.

Description

Light protection system and light protection method

The present disclosure relates to a care system and a care method, and particularly relates to a light care system and a light care method.

According to research results, about 1/4 to 1/5 of people at home and abroad have emotional problems or sleep problems. Emotional problems (such as depression) may become the heaviest burden of medical care, and sleep problems may have a negative impact on mood, stress, heart, or metabolism. At present, medication is mainly used to solve the emotional problems and sleep problems of patients. However, 38% of drug treatments are ineffective for depression. In addition, drugs often cause side effects, such as reducing the patient's ability to control the body, causing other diseases, or increasing mortality. In addition, drugs may interact with food, which may lead to side effects, slower decomposition of drugs by the body, or production of toxins. Therefore, taking medication can easily cause dietary inconvenience.

The present disclosure provides a light protection system and a light protection method, which can effectively improve, record and track emotional problems or sleep problems under the premise of less side effects and less restricted diet.

The light protection system of an embodiment of the present disclosure includes a physiological sensing device, a processor, and a light source device. The physiological sensing device is suitable for acquiring physiological data of the user. The processor is coupled with the physiological sensing device, and the processor obtains at least one light parameter corresponding to the physiological data according to the physiological data. The light source device is coupled to the processor, and the light source device outputs a light beam according to the at least one light parameter, wherein the green light or the blue light in the light beam occupies more than 40% of the light beam.

The light protection method of an embodiment of the present disclosure includes the following steps. Obtain the user's physiological data. At least one light parameter corresponding to the physiological data is acquired according to the physiological data. The light beam is output according to the at least one light parameter, wherein the green light or the blue light in the light beam accounts for more than 40% of the light beam.

In order to make the above-mentioned features and advantages of the present disclosure more obvious and understandable, the following specific embodiments are described in detail in conjunction with the accompanying drawings.

The directional terms mentioned in the embodiments, for example: "up", "down", "front", "rear", "left", "right", etc., are only directions with reference to the drawings. Therefore, the directional terms used are used to illustrate, but not to limit the present invention. In the drawings, each drawing depicts the general features of the methods, structures, and/or materials used in specific exemplary embodiments. However, these drawings should not be construed as defining or limiting the scope or nature covered by these exemplary embodiments. For example, for clarity, the relative thickness and position of each layer, region, and/or structure may be reduced or enlarged.

Fig. 1 is a schematic diagram of a light protection system according to an embodiment of the present disclosure. Please refer to FIG. 1, the light protection system 1 includes a physiological sensing device 10, a processor 12 and a light source device 14.

The physiological sensing device 10 is suitable for acquiring the physiological data BD of the user U1. For example, the physiological sensing device 10 may include a brain wave sensing device, an electrocardiographic sensing device, a dynamic sensing device, a breathing sensing device, or a combination of at least two of the above. Correspondingly, the physiological data BD may include brain electricity, heart rate (heart rate), heart rate variability (HRV), body position change, respiratory rate, or a combination of at least two of the above.

Fig. 2 is a schematic diagram of a brain wave sensing device. Please refer to FIG. 2, the physiological sensing device 10 of FIG. 1 may be the brain wave sensing device 10A as shown in FIG. 2. The brain wave sensing device 10A is arranged on the head of the user U1 to obtain the electroencephalogram of the user U1. It should be noted that the brain wave sensing device 10A shown in FIG. 2 is only one of the implementation types of the brain wave sensing device, but the specific type of the brain wave sensing device can be changed according to requirements, instead of referring to FIG. 2 The displayed is limited.

Fig. 3 is a schematic diagram of electrode configuration when acquiring an EEG. Please refer to Figure 3, when the user U1's EEG is obtained, a pair of electrodes will be arranged on the user U1's head and both ears (areas A1 and A2) to record the upper frontal area of the cerebral cortex (including the area Fp1). , Fp2, F3, F4, Fz, F7, F8), temporal lobe area (including area T3, T4, T5, T6), parietal area (including area P3, P4, Pz), occipital area (including area O1, O2) and brain wave indicators in the central sulcus area (including areas C3, C4, and Cz). The brain wave index may include at least one of delta wave, theta wave, alpha wave, beta wave, and gamma wave, but is not limited to this.

Different brain wave indicators indicate different states of the human body. Therefore, by observing at least one brain wave index in at least one area on the cerebral cortex of the user U1 through the EEG, the state of the user U1, such as the emotional state, the mental state, or the sleep state, can be known. Here, the emotional state generally refers to the psychological or physical feelings of the user U1, such as being relaxed, happy, energetic, focused, awake, or a combination of at least two of the above, but not limited to this. Mental state refers to psychiatric treatment issues, such as depression, seasonal affective disorder (SAD), generalized anxiety disorder (GAD), Alzheimer's disease (AD), and Mental problems such as Parkinson's disease (PD) or Attention Deficit Hyperactivity Disorder (ADHD), but not limited to this. Sleep state generally refers to sleep quality issues and sleep phase issues. Sleep quality issues may include shortening the time to fall asleep, reducing the number of awakenings, increasing total sleep time, improving sleep efficiency, or alleviating insomnia, but not limited to this. Sleep phase issues may include issues such as Delayed Sleep Phase Disorder (DSPD), Advanced Sleep Phase Disorder (ASPD), Shift Work Disorder (SWD), or jet lag.

Fig. 4 is a schematic diagram of a cardiogram measuring device. Please refer to FIG. 4, the physiological sensing device 10 of FIG. 1 may be the electrocardiographic sensing device 10B as shown in FIG. 4. The electrocardiographic sensing device 10B is set on the wrist of the user U1 to obtain the user U1's heart rhythm, heart rate variability analysis, or a combination of the above two. It should be noted that the electrocardiography device 10B shown in FIG. 4 is only one of the implementation types of the electrocardiography device, but the specific type of the electrocardiography device can be changed according to requirements, instead of the one shown in FIG. 4 Is limited.

The heart rate variability analysis may include a time domain analysis index and a frequency domain analysis index calculated according to the heart rate variability analysis. Time domain analysis indicators can include the standard deviation of normal heartbeat interval (Standard Deviation of Normal to Normal, SDNN), and frequency domain analysis indicators can include low frequency (LF), high frequency (High Frequency, HF), and low frequency and high frequency. The ratio of frequency (LF/HF), but not limited to this.

表一SDNN represents the strength of the autonomic nervous system. Table 1 shows the SDNNs corresponding to different age groups. As shown in Table 1, under normal circumstances, age is inversely proportional to SDNN. In other words, the younger the age, the higher the SDNN; the older the age, the weaker the SDNN. SDNN can be used as an indicator of whether a person is prematurely aging, and can also be used as an indicator of whether the course of anti-disease treatment received by a patient is effective.

Table I

表二LF refers to a physiological electric wave with a frequency of 0.040 Hz to 0.150 Hz, which is an electric wave when the sympathetic nerve is firing, and represents the activity of the sympathetic nerve. HF refers to a physiological electric wave with a frequency of 0.15 Hz to 0.400 Hz, which is an electric wave when the parasympathetic nerve is firing, and represents the activity of the parasympathetic nerve. LF/HF is the ratio of sympathetic nerve and parasympathetic nerve activity, representing the balance of autonomic nerve activity. Table 2 shows the LF, HF and LF/HF corresponding to different age groups. As shown in Table 2, at the age of 21-40, males have higher sympathy (LF) than females, and parasympathetic (HF) is higher than that of males. At the age of 41 to 60, males have higher parasympathetic (HF) than females. For men and women over 60 years old, the difference between LF and HF is getting smaller and smaller. In other words, the LF/HF ratio decreases with age.

Table II

1, the processor 12 is coupled to the physiological sensing device 10, and the processor 12 obtains at least one light parameter PM corresponding to the physiological data BD according to the physiological data BD. For example, the processor 12 may include a central processing unit (Central Processing Unit, CPU) or a graphics processing unit (Graphic Processing Unit, GPU), but is not limited to this.

Fig. 5 is a schematic diagram of a display device. 1 and 5, the processor 12 of the light protection system 1 of FIG. 1 may be built in the display device DP of FIG. 5, but it is not limited to this. The processor 12 and the physiological sensing device 10 can be connected in a limited or wireless manner for signal transmission. The processor 12 can store, calculate and analyze the physiological data BD, and the processor 12 can judge the use according to the physiological data BD (such as heart rhythm, heart rate variability analysis, brain electricity, body position change, breathing rate or a combination of at least two of the above) U1’s sleep state, emotional state, or a combination of the above two. After determining the sleep state, emotional state, or a combination of the above two of the user U1, the processor 12 obtains at least one light parameter PM corresponding to the physiological data BD, and outputs the at least one light parameter PM to the light source device 14, so that The light source device 14 outputs a light beam LB corresponding to the at least one light parameter PM, so as to adjust the sleep state, emotional state or a combination of the above two by the irradiation of the light beam LB. The at least one light parameter PM may include illumination duration, illumination timing, illumination type, proportion of green light, proportion of blue light, color rendering, or a combination of at least two of the above. Here, the lighting duration refers to the total time for each lighting protection. The timing of light exposure refers to the time of use of light protection, such as use before going to bed, how long to use it after getting up, etc. Types of illumination include monochromatic light and mixed light. The percentage of green light refers to the percentage of green light in the light beam LB in the spectrum of the light beam LB. Similarly, the proportion of blue light refers to the percentage of blue light in the light beam LB in the spectrum of the light beam LB.

The processor 12 may have built-in various algorithms for adjusting the emotional state and sleep state of the user U1, and the display device DP may display various icons corresponding to different emotional states and sleep states for the user U1 to select . In this embodiment, the processor 12 has built-in algorithms for adjusting/improving the four emotional states and four sleep states of the user U1, and the display device DP can display four icons corresponding to the four emotional states ( Such as icons E1, E2, E3, and E4) and four icons corresponding to the four sleep states (such as icons S1, S2, S3, and S4).

For example, the icon E1 corresponds to the problem of stress. The user U1 can press the icon E1 to activate the corresponding light protection function (for example, including the acquisition, storage, calculation and analysis of physiological data, as well as the light step), so as to achieve the effect of relieving pressure. The icon E2 corresponds to the problem of easy fatigue. The user U1 can press the icon E2 to activate the corresponding light protection function, so as to achieve the effect of boosting energy (increasing vitality). Icon E3 corresponds to the problem of inattention. The user U1 can press the icon E3 to activate the corresponding light protection function, so as to achieve the effect of enhancing attention. Icon E4 corresponds to the problem of bad mood and full of negative emotions. The user U1 can press the icon E4 to activate the corresponding light protection function, so as to achieve the effect of enhancing positive emotions, inhibiting depression, and even alleviating depression. The icon S1 corresponds to the problem of poor sleep quality. Poor sleep quality includes frequent difficulty falling asleep, insomnia, insufficient deep sleep, and insufficient total sleep hours (easy to wake up). The user U1 can press the icon S1 to activate the corresponding light protection function (for example, including the acquisition, storage, calculation and analysis of physiological data, as well as the light step), so as to achieve the effect of improving the quality of sleep. Icon S2 corresponds to the problem of Delayed Sleep Phase Disorder (DSPD). Delayed sleep phase disorders include the inability to fall asleep before 2 am and the inability to get up normally in the morning, and the release of melatonin (Dim Light Melatonin Onset, DLMO) under dim light. The user U1 can press the icon S2 to activate the corresponding light protection function, so as to achieve the effect of alleviating the sleep phase delay disorder. Icon S3 corresponds to the problem of Advanced Sleep Phase Disorder (ASPD). Sleep phase advancement disorders include the problems of wanting to go to bed at 6 pm and waking up at about 2 pm and then having difficulty staying asleep until morning and DLMO. The user U1 can press the icon S3 to activate the corresponding light protection function, so as to achieve the effect of alleviating the sleep phase advance obstacle. The icon S4 corresponds to the problem of difficulty falling asleep. The user U1 can press the icon S4 to activate the corresponding light protection function, so as to achieve the effect of promoting drowsiness.

It should be noted that the type and quantity of the state to be improved by the user can be changed according to actual needs, and is not limited to that shown in FIG. 5.

1, the light source device 14 is coupled to the processor 12, and the light source device 14 outputs light LB according to the at least one light parameter PM, wherein the green light or blue light in the light beam LB accounts for more than 40% of the light beam LB. For example, the light source device 14 may include at least one red light emitting element, at least one green light emitting element, at least one blue light emitting element, and at least one yellow light emitting element to mix desired white light. The light-emitting element is, for example, a light-emitting diode, but it is not limited to this. By adjusting the proportion of specific monochromatic light (such as at least one of green light and blue light) in white light (such as the ratio of the light intensity of green/blue light to the light intensity of white light), users can produce specific physiological responses And biological effects, so as to achieve the effect of adjustment, improvement or health care of emotional state and/or sleep state. In an embodiment, the light source device 14 may be a monochromatic light emitting element with phosphor powder or a monochromatic light emitting element with quantum dots to mix white light. Alternatively, the light source device 14 may also be other types of white light sources with filter modules (including filters).

6A to 6D are four schematic diagrams of the light source device respectively. Please refer to FIG. 6A. The light source device 14 of FIG. 1 may be a lamp 14A suitable for providing a larger lighting range as shown in FIG. 6A, such as a fluorescent lamp or a desk lamp. Under this structure, the light beam LB provided by the lamp 14A is preferably white light, and the white light is adjusted to the most suitable light source formula (such as the proportion of green light, the proportion of blue light, and the range of color rendering) according to the application purpose of the light source. In this way, while achieving the adjustment, improvement or health care of the emotional state and/or sleep state, the discomfort or interference of the user or other people in the same space can be reduced to an acceptable or unnoticeable level. In addition, under the structure of the fixed lamp 14A, the user U1 can choose the place where the lamp 14A is placed by himself, and does not necessarily need to go to the clinic or the hospital for light care.

Please refer to FIG. 6B. The light source device 14 of FIG. 1 may be a cabin 14B that provides illumination within a defined range as shown in FIG. 6B. A light emitting element 140B is provided in the cabin 14B to provide a light beam LB.

Please refer to FIG. 6C. The light source device 14 of FIG. 1 may be a portable light source device 14C as shown in FIG. 6C, so as to be convenient for the user U1 to carry. In this way, the user U1 can perform light protection no matter where it is.

Please refer to FIG. 6D. The light source device 14 of FIG. 1 may be a wearable light source device 14D as shown in FIG. 6D. The light-emitting element 140D in the wearable light source device 14D can be erected around the user's eyes by the fixing element 142D, and the light beam LB emitted by the light-emitting element 140D will not greatly affect the user's line of sight, so as to reduce the light emitted by the light-emitting element 140D. The effect of the light beam LB on the user's vision and psychology. In this way, the physiological effects (broadly referring to general physiological reactions, such as heart rhythm and brain electrical response, etc.) and biological effects (broadly referring to changes in hormone secretion) caused by the light beam LB on the user's LB can be simply considered. Hormones can include melatonin ( melatonin, γ-aminobutyric acid (GABA), cortisol, dopamine, serotonin, norepinephrine, endorphin, oxytocin, and Acetylcholine (acetylcholine)). In this case, the light beam LB may not be white light. For example, the light-emitting element 140D in the light source device 14D may not include a red light-emitting element, but only includes at least one of a green light-emitting element and a blue light-emitting element. In addition, under the framework of the wearable light source device, the user can perform light protection no matter where he is.

Please refer to FIG. 1, according to different requirements, the light protection system 1 may further include other elements and/or devices. For example, the light protection system 1 may further include a cloud database 16. The cloud database 16 can be coupled with the physiological sensing device 10 and the processor 12 to store the user's physiological data BD and used light parameters PM.

The doctor U2 and the user U1 can determine whether the emotional state and/or sleep state of the user U1 has improved based on the physiological data BD stored in the cloud database 16. In addition, the doctor U2 can make a diagnosis based on the physiological data BD stored in the cloud database 16 and adjust the optimal light source formula (such as the proportion of green light, the proportion of blue light, and the range of color rendering) accordingly. In addition, under the authorization of the user U1, the family U3 of the user U1 can also view the physiological data BD stored in the cloud database 16, so as to know the emotional state and/or sleep state of the user U1, and transmit caring messages in real time .

Fig. 7 is a flow chart of a method for light protection according to an embodiment of the present disclosure. Referring to FIG. 7, in step 710, the physiological data of the user is acquired. For example, the aforementioned brain wave sensing device, electrocardiographic sensing device, dynamic sensing device, breathing sensing device, or a combination of at least two of the above can be used to obtain brain electricity, heart rhythm, heart rate variability analysis, and body position change. , Breathing rate or a combination of at least two of the above.

In step 720, at least one light parameter corresponding to the physiological data is obtained according to the physiological data. Furthermore, the user's emotional state and/or sleep state can be judged based on physiological data, and then the corresponding optimal light source formula (such as lighting duration, lighting timing, lighting type, green light proportion, blue light proportion, color rendering property) can be determined. Or a combination of at least two of the above).

In step 730, a light beam is output according to the at least one light parameter, wherein green light or blue light in the light beam accounts for more than 40% of the light beam. Furthermore, by adjusting the proportion of specific monochromatic light (such as at least one of green light and blue light) in white light, users can produce specific physiological reactions and biological effects, thereby achieving emotional state and/or sleep state The effect of adjustment, improvement or health care.

表三Taking the emotional state as an example, the user's emotional state can be judged based on the heart rate variability analysis. Table 3 lists the user’s emotional problems, improvement goals, judgment indicators, and the most suitable light source formula. In Table 3, as long as at least one of the judgment indicators is met, the emotional problem can be improved by the corresponding optimal light source formula. When the user has more than one emotional problem, the processor can calculate the corresponding optimal light source formula (for example, the union of the most suitable light source formulas) to improve multiple emotional problems at the same time. In the most suitable light source formula, the duration of illumination, the type of light source (single light or mixed light), and color rendering are all considered together. The single light and mixed light of the light source type are selected for light protection. Taking the problem of easy fatigue as an example, when a single light is selected for light protection, the light beam LB in FIG. 1 is green light, and the green light in the light beam LB accounts for 100% of the light beam LB. On the other hand, when light mixing is selected for illumination protection, the light beam LB in FIG. 1 is white light, and the green light in the light beam LB accounts for more than 40% of the light beam LB.

Table Three

Taking the sleep state as an example, the user's sleep state can be determined based on brain electricity, heart rhythm, heart rate variability analysis, body position change, breathing rate, or a combination of at least two of the above. The measurement items when observing the sleep state can include time to fall asleep, time to wake up, time to deep sleep, number of awakenings per night, total sleep time (TST), sleep efficiency (SE) and/or sleep latency (sleep latency) etc., but not limited to this. Here, sleep efficiency=(actual time asleep/total time lying in bed)*100%. Sleep latency is defined as the time from lying down to falling asleep.

For example, the number of times the user wakes up every night can be observed by a dynamic sensing element (such as a wrist monitor), and the sleep state of the user can be observed by ECG and/or EEG. Specifically, the user’s maximum heart rate is equal to 208-(0.7*user’s age) in the awake state, and when the user falls asleep, the user’s maximum heart rate will drop by 14 bpm (for users over 60 years old) to 24 bpm (young people). When a person sleeps, the ratio of LF/HF will reverse, that is, HF is higher and the ratio is lower than 1. If the ratio of LF/HF is still greater than 1, it is difficult to sleep deeply. Therefore, it is possible to determine whether the user falls asleep by observing the user's maximum heart rhythm, and then calculate the time to fall asleep, time to wake up, number of awakenings per night, total sleep time, sleep efficiency, and/or sleep latency. On the other hand, the user’s brainwave indicators will change with different sleep stages (such as waking, non-rapid eye movement, and rapid eye movement). Therefore, you can observe different areas on the cerebral cortex (such as area C3, area C4, Area O1) brain wave indicators (such as delta wave, theta wave, alpha wave, beta wave) to calculate the user's deep sleep time.

In one embodiment, the sleep state of the user can be observed for seven consecutive days, and then the optimal light source formula can be determined based on the sleep state of these seven days. In other words, the optimal light source formula on day X is determined by the sleep state from day X-1 to day X-7, but it is not limited to this. For example, if you want to promote drowsiness, you can directly use the corresponding optimal light source formula for light protection.

表四Table 4 lists the user’s sleep problems, improvement goals, judgment indicators and the most suitable light source formula. In Table 4, as long as at least one of the judgment indicators is met, the sleep problem can be improved by the corresponding optimal light source formula. When the user has more than one type of sleep problem, or when the user suffers from sleep and emotional problems, the processor can calculate the corresponding optimal light source formula (for example, a combination of optimal light source formulas) to improve multiple problems at the same time. In the optimal light source formula, lighting timing, lighting duration, light source type (single light or mixed light), and color rendering are all considered together. Among them, single light and mixed light of the light source type are selected for light protection.

Table Four

In Tables 3 and 4, when the light mixing method is used for light protection, the proportion of the monochromatic light in the white light will affect the color temperature of the white light and the irradiance of the monochromatic light into the eyes of the user. In addition, human experiments show that under different color temperature-illuminance combinations, users will have different visual and psychological feelings, such as "dazzling and non-dazzling", "tension and relaxation", "sleepy and drowsy". Sober", "Melancholic and pleasant", "Uncomfortable and comfortable" and "Cold and warm", but not limited to this. According to this, the user's visual and psychological feelings can be taken into consideration, and the color temperature and illuminance in the most suitable light source formula can be adjusted.

In the part of the biological effects of light on the human body, through experiments to collect and analyze human sleep-related hormones (such as: Melatonin and serotonin) and mood-related hormones (such as: gamma-aminobutyric acid, cortisone, dopamine, norepinephrine, endorphin, oxytocin and acetylcholine) changes, and establish a light source pair Action spectrum of each hormone. Fig. 8 is a graph showing the relationship between the change in the concentration of serotonin and the wavelength of light. According to the user's situation, an appropriate wavelength can be selected to illuminate the user with reference to FIG. 8, but it is not limited to this.

In addition, the user's biological effects can be taken into consideration, and an optimal color temperature, illuminance, and spectrum combination light source that can meet the needs of the user's visual, psychological, physiological and biological effects at the same time can be established. For example, the feasible range of wavelength and intensity of the irradiated light can be confirmed based on the physiological effect and biological effect, and then the feasible range of color temperature and illuminance can be confirmed based on the visual effect (visual comfort) and psychological effect (psychological pleasure). The physiological effects may include (but are not limited to): the irradiation of blue light will make Ln(F4)-Ln(F3)>0, where Ln(F4) is the area F4, area F8, area in the frontal area of the user The natural logarithm of the power of the alpha wave or theta wave of Fp2 (see Figure 3), and Ln(F3) is the alpha wave or theta wave of the area F3, area F7, and area Fp1 (see Figure 3) in the frontal lobe of the user Natural logarithm of power. The biological effects may include (but are not limited to): green light irradiation will increase the secretion of serotonin.

In one embodiment, the most suitable light source formula for stress relief can be to change the "mixed light: green light accounts for more than 40% of white light, and blue light accounts for less than 5% of white light" in Table 3 to "mixed light: the color temperature of white light. In the range of 3000 K to 4500 K, the illuminance of white light falls in the range of 400 lux to 800 lux, and the irradiance (intensity) of green light entering the user's eyes is ≥ 30 μW/cm ² ”.

In one embodiment, the most suitable light source formula for boosting energy and/or boosting vitality can be to change the "mixed light: green light accounts for more than 40% of white light" in Table 3 to "mixed light: the color temperature of white light falls at 4500 In the range of K to 6500 K, the illuminance of white light is ≥700 lux, the irradiance (intensity) of green light entering the user’s eyes is ≥ 30 μW/cm ² , and the irradiance (intensity) of blue light entering the user’s eyes is ≥ 30 μW/cm ² , and the irradiance of green light is greater than that of blue light.”

In one embodiment, the most suitable light source formula for enhancing attention can be to change the "mixed light: green light accounts for more than 40% of white light, and red light accounts for more than 10% of white light" in Table 3 to "mixed light: white light The color temperature falls within the range of 4500 K to 6500 K, the illuminance of white light is ≥700 lux, the irradiance (intensity) of green light entering the user’s eyes is ≥ 30 μW/cm ² , the radiation of blue light entering the user’s eyes Illuminance (intensity) ≥ 30 μW/cm ² , and the irradiance of green light is greater than that of blue light”.

In one embodiment, the most suitable light source formula for making users happy, suppressing negative emotions, and/or enhancing positive emotions may be “green light accounts for more than 40% of white light, and blue light accounts for 10% of white light. "Above" is changed to "Mixed light: the color temperature of white light falls within the range of 4500 K to 6500 K, the illuminance of white light is ≥700 lux, and the irradiance (intensity) of blue light entering the user’s eyes ≥ 30 μW/cm ² ” .

In one embodiment, the most suitable light source formula to improve sleep quality can be to change the "mixed light: green light accounts for more than 40% of white light" in Table 4 to "mixed light: white light color temperature ≥ 5000 K, white light illuminance ≥ 700 lux, the irradiance (intensity) of green light entering the user’s eyes is ≥ 30 μW/cm ² , and the irradiance (intensity) of blue light entering the user’s eyes is ≥ 30 μW/cm ² ”.

In one embodiment, the most suitable light source formula to alleviate DSPD can be to change the "mixed light: green light accounts for more than 40% of white light" in Table 4 to "mixed light: white light color temperature ≥ 5000 K, white light illuminance ≥ 700 lux, the irradiance (intensity) of green light entering the user's eyes is ≥ 30 μW/cm ² , and the irradiance (intensity) of blue light entering the user's eyes is ≥ 30 μW/cm ² ”.

In one embodiment, the most suitable light source formula to alleviate ASPD can be to change the "mixed light: blue light accounts for more than 40% of white light" in Table 4 to "mixed light: white light color temperature ≥ 5000 K, white light illuminance ≥ 800 lux , And the irradiance (intensity) of blue light entering the user’s eyes ≥ 30 μW/cm ² ".

In one embodiment, the most suitable light source formula to promote drowsiness can be to change the "mixed light: green light accounts for more than 50% of white light, and blue light accounts for less than 5% of white light" in Table 4 to "mixed light: the color temperature of white light. Within the range of 3000 K to 4500 K, the illuminance of white light is less than or equal to 600 lux, the irradiance (intensity) of green light entering the user’s eyes is ≥ 30 μW/cm ² , and the irradiance of yellow light entering the user’s eyes Illuminance (intensity) ≥ 30 μW/cm ² ".

In summary, the light protection system and light protection method of the embodiments of the present disclosure can obtain physiological data of the user, determine the emotional state and/or sleep state of the user according to the physiological data, and perform light protection according to the judgment result. Since light protection has less side effects and is not easy to interact with food, the light protection system and light protection method of the embodiments of the present disclosure can improve emotional problems under the premise of less side effects and less restricted diet. And/or sleep problems. In one embodiment, the light source device may be a portable light source device or a wearable light source device, which is convenient to carry, and the light protection is not limited to the size of the venue and/or space. In another embodiment, the physiological data and optical parameters can be stored in a cloud database, and the physiological data and optical parameters stored in the cloud database can be shared with the user's doctor and/or family through the user's authorization. In yet another embodiment, the user's visual, psychological, physical and biological effects can also be taken into consideration, and the color temperature, illuminance, and spectrum combination in the optimal light source formula can be adjusted.

Although the present disclosure has been disclosed in the above embodiments, it is not intended to limit the present disclosure. Anyone with ordinary knowledge in the relevant technical field can make some changes and modifications without departing from the spirit and scope of this disclosure. Therefore, The scope of protection of this disclosure shall be subject to those defined by the attached patent scope.

1‧‧‧Light protection system 10‧‧‧Physiological sensing device 10A ‧‧‧Capsule 14C‧‧‧Portable light source device 14D‧‧‧Wearable light source device 16‧‧‧Cloud database 140B, 140D‧‧‧Light emitting element 142D‧‧‧Fixed element 710, 720, 730‧‧ ‧Steps A1, A2, C3, C4, Cz, Fp1, Fp2, F3, F4, Fz, F7, F8, O1, O2, P3, P4, Pz, T3, T4, T5, T6‧‧‧Region BD‧‧ ‧Physiological data DP‧‧‧Display device E1, E2, E3, E4, S1, S2, S3, S4‧‧‧Icon LB‧‧‧Beam PM‧‧‧Light parameter U1‧‧‧User U2‧‧‧Doctor U3‧‧‧Family

Fig. 1 is a schematic diagram of a light protection system according to an embodiment of the present disclosure. Fig. 2 is a schematic diagram of a brain wave sensing device. Fig. 3 is a schematic diagram of electrode configuration when obtaining an electroencephalogram (Electroencephalograph, EEG). Fig. 4 is a schematic diagram of a cardiogram measuring device. Fig. 5 is a schematic diagram of a display device. 6A to 6D are four schematic diagrams of the light source device respectively. Fig. 7 is a flow chart of a method for light protection according to an embodiment of the present disclosure. Fig. 8 is a graph showing the relationship between the change in the concentration of serotonin and the wavelength of light.

1‧‧‧Light protection system

10‧‧‧Physiological sensing device

12‧‧‧Processor

14‧‧‧Light source device

16‧‧‧Cloud Database

BD‧‧‧Physiological data

LB‧‧‧Beam

PM‧‧‧Optical Parameters

U1‧‧‧User

Doctor U2‧‧‧

U3‧‧‧Family

Claims (15)

A light protection system includes: a physiological sensing device adapted to obtain a physiological data of a user; a processor coupled to the physiological sensing device, and the processor obtains corresponding physiological data according to the physiological data At least one light parameter for the user’s physiological condition, the at least one light parameter is an optimal light source formula that provides light protection for the physiological condition of the user; and a light source device coupled to the processor, wherein the light source device is based on the at least one light parameter A light mixing ratio of a light beam is determined, and the light mixing ratio is such that green light or blue light in the light beam occupies more than 40% of the light beam. The light protection system according to the first item of the scope of patent application, wherein the physiological sensing device includes a brain wave sensing device, an electrocardiographic sensing device, a dynamic sensing device, a breathing sensing device, or a combination of at least two of the above. The light protection system according to item 1 of the scope of patent application, wherein the physiological data includes brain electricity, heart rhythm, heart rate variability analysis, body position change, breathing rate, or a combination of at least two of the above. For example, in the light protection system described in item 3 of the scope of patent application, the heart rate variability analysis includes a time domain analysis index and a frequency domain analysis index calculated according to the heart rate variability analysis. For the light protection system described in item 1 of the scope of patent application, the processor judges the user's emotional state based on heart rate variability analysis. According to the light protection system described in item 1 of the scope of patent application, the processor judges the sleep state of the user based on heart rhythm, heart rate variability analysis, brain electricity, body position change, breathing rate, or a combination of at least two of the above. The illumination protection system according to the first item of the scope of patent application, wherein the at least one light parameter includes illumination duration, illumination timing, illumination type, proportion of green light, proportion of blue light, color rendering, or a combination of at least two of the above. The light protection system described in item 1 of the scope of patent application further includes: a cloud database coupled with the physiological sensing device and the processor. A light protection method includes: acquiring a physiological data of a user; acquiring at least one light parameter corresponding to the physiological data according to the physiological data, and the at least one light parameter is the most suitable light protection provided for the physiological condition of the user Light source formula; and determining a light mixing ratio of a light beam according to the at least one light parameter, wherein the light mixing ratio is that green light or blue light in the light beam accounts for more than 40% of the light beam. As described in item 9 of the scope of patent application, the physiological data includes brain electricity, heart rhythm, heart rate variability analysis, body position change, breathing rate, or a combination of at least two of the above. For example, in the light protection method described in item 10 of the scope of patent application, the heart rate variability analysis includes a time domain analysis index and a frequency domain analysis index calculated according to the heart rate variability analysis. According to the light protection method described in item 9 of the scope of patent application, the physiological data includes heart rate variability analysis, and the light beam is suitable for adjusting the emotional state of the user. As described in item 9 of the scope of patent application, the physiological data includes brain electricity, heart rhythm, heart rate variability analysis, body position change, breathing frequency, or a combination of at least two of the above, and the light beam is suitable for adjusting the The sleep state of the user. The illumination protection method according to item 9 of the scope of patent application, wherein the at least one light parameter includes illumination duration, illumination timing, illumination type, proportion of green light, proportion of blue light, color rendering, or a combination of at least two of the above. As described in item 9 of the scope of the patent application, the light protection method further includes: storing the physiological data and the at least one light parameter.

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