An illumination device and system that can reduce visual perception of blue light

Abstract

The utility model relates to LED lighting technical field, concretely relates to a kind of lighting equipment and system of visual perception blue light can be reduced.The lighting equipment includes: first light emitting device and at least two second light emitting devices.The light emitting color temperature of first light emitting device is greater than the light emitting color temperature of second light emitting device.The at least two second light emitting devices surround first light emitting device, and second light emitting device and first light emitting device are articulated in the way of light emission in the same direction.When illuminating using the utility model, the light entering human eye vision includes the high color temperature light of first light emitting device and the low color temperature light of second light emitting device, thereby reducing the proportion of blue light in the light perceived by human eye vision, and further reducing the intensity of visual perception blue light, relieving visual fatigue, eye dryness, and avoiding retina damage caused by excessive blue light.

Description

Technical Field

[0001] This utility model relates to the field of LED lighting technology, and in particular to a lighting device and system that can reduce visually perceived blue light. Background Technology

[0002] The human eye's visual preferences are as follows: high color temperatures (such as cool white light, above 5000K) make the contrast between light and dark on the surface of objects clearer and more obvious; low color temperatures (such as warm yellow light, below 3000K) weaken the contrast between light and dark. In office or work environments that require high concentration, high color temperature lighting is usually used to improve visual clarity and work efficiency. However, high color temperature light sources usually contain more blue light, and long-term exposure to high color temperature lighting environments may lead to visual fatigue, dry eyes, and even retinal damage. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of existing high color temperature lighting in office or work environments, which can easily lead to visual fatigue, dry eyes, and even retinal damage, and to provide a lighting device and system that can reduce visual perception of blue light.

[0004] First, this utility model provides a lighting device that can reduce visually perceived blue light, comprising: a first light-emitting device and at least two second light-emitting devices. The at least two second light-emitting devices surround the first light-emitting device, and the second light-emitting devices are hinged to the first light-emitting device in a manner that emits light in the same direction.

[0005] Preferably, the color temperature of the first light-emitting device is greater than that of the second light-emitting device.

[0006] According to a preferred embodiment, the first light-emitting device includes: a first light source plate and a diffuser plate. The first light source plate has a plurality of first LEDs arranged on one side. The diffuser plate is disposed in the light-emitting direction of the first light source plate and is parallel to the first light source plate. The first light source plate includes: a first substrate, a plurality of first LEDs, and a plurality of first lenses. Each first lens corresponds to one of the first LEDs. The plurality of first LEDs are arranged at intervals on one side of the first substrate. The first lenses are disposed in the light-emitting direction of the first LEDs and cover the first LEDs.

[0007] According to a preferred embodiment, the first light-emitting device further includes: a first housing and a first panel for housing.

[0008] The first housing encapsulates the first light source plate and the diffuser plate. The first housing is configured as a container with an opening at the top or bottom. The first light source plate and the diffuser plate are disposed within the first housing. The first panel is disposed at the opening of the first housing.

[0009] According to a preferred embodiment, the second light-emitting device includes: a second light source plate and a transparent plate. The second light source plate has a plurality of second LEDs arranged on one side. The transparent plate is disposed in the light-emitting direction of the second light source plate and is parallel to the second light source plate. The second light source plate includes: a second substrate, a plurality of second LEDs, and a plurality of second lenses. Each second lens corresponds to one of the second LEDs. The plurality of second LEDs are arranged at intervals on one side of the second substrate. The second lenses are disposed in the light-emitting direction of the second LEDs and cover the second LEDs.

[0010] According to a preferred embodiment, the second light-emitting device further includes: a second housing and a second panel for accommodating and encapsulating the second light source plate and the transparent plate. The second housing is configured as a container with an opening at the top or bottom. The second light source plate and the transparent plate are disposed within the second housing. The second panel is disposed at the opening of the second housing.

[0011] According to a preferred embodiment, the light-emitting angle of the first lens is 30–60°. The light-emitting angle of the second lens is 15–75°.

[0012] According to a preferred embodiment, the first light-emitting device has a color temperature ≤ 6500K, an illumination power of 20–300W, a color rendering index Ra ≥ 80, and a luminous efficacy ≥ 60lm / W. The second light-emitting device has a color temperature of 1000–4500K, an illumination power of 20–90W, a luminous flux ≥ 20lm, a blue light ratio of < 6%, a half-wavelength width > 30nm, and a peak wavelength of 630–760nm.

[0013] According to a preferred embodiment, the second LED includes a red LED with an emission wavelength of 630–760 nm. The red LED includes: a single-wavelength red LED with an emission wavelength at a specific value between 630 and 760 nm, and a broadband red LED with an emission wavelength in a certain band between 640 and 720 nm.

[0014] According to a preferred embodiment, the first light-emitting device has a quadrilateral cross-section in the direction perpendicular to the light emission direction, and each side is connected to the second light-emitting device.

[0015] According to a preferred embodiment, the second LED is a single-wavelength red LED or a broadband red LED. A single second light-emitting device has the following characteristics: color temperature of 1000–1700K, illumination power of 20–60W, luminous flux ≥20lm, blue light <2% in the color ratio, and half-wavelength width >30nm.

[0016] According to a preferred embodiment, the second LED includes: a white LED, a single-wavelength red LED, and a broadband red LED. A single second light-emitting device has the following characteristics: a color temperature of 1700–2200K, an illumination power of 20–90W, a luminous flux ≥30lm, a blue light ratio of <3%, a half-wavelength width >100nm, and a color rendering index ≥70.

[0017] According to a preferred embodiment, the second LED comprises: a white LED and a single-wavelength red LED, or a white LED and a broadband red LED. A single second light-emitting device has the following characteristics: a color temperature of 2200–3000K, an illumination power of 20–90W, a luminous flux ≥60lm, a blue light ratio of <4%, a half-wavelength width >100nm, and a color rendering index ≥70.

[0018] According to a preferred embodiment, the second LED comprises: a white LED and a single-wavelength red LED, or a white LED and a broadband red LED. A single second light-emitting device has the following characteristics: a color temperature of 3000–4500K, an illumination power of 20–90W, a luminous flux ≥90lm, a blue light ratio of <6%, a half-wavelength width >100nm, and a color rendering index ≥70.

[0019] According to a preferred embodiment, the first light source board includes at least two first substrates, and the first substrates are electrically connected in series or in parallel.

[0020] Secondly, this invention also provides a lighting system that can reduce visually perceived blue light. The lighting system includes a lighting device and a driving device; wherein the lighting device is the blue light-reducing lighting device provided by this invention. The first light source board and the second light source board are respectively electrically connected to the driving device.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] This invention provides a lighting device and system for reducing perceived blue light, comprising: a first light-emitting device and at least two second light-emitting devices. The color temperature of the first light-emitting device is greater than that of the second light-emitting devices. The at least two second light-emitting devices surround the first light-emitting device, and the second light-emitting devices are hinged to the first light-emitting device in a manner that emits light in the same direction. When using this invention for illumination, the light entering the human eye includes high color temperature light emitted from the first light-emitting device and low color temperature light emitted from the second light-emitting device, thereby reducing the proportion of blue light in the light perceived by the human eye, thus reducing the intensity of perceived blue light, relieving visual fatigue and dry eyes, and preventing retinal damage caused by excessive blue light. Attached Figure Description

[0023] Figure 1 This is a schematic diagram illustrating the use of a preferred embodiment of the lighting system of this utility model;

[0024] Figure 2 This is an exploded view of the structure of a lighting device according to a preferred embodiment of the present invention.

[0025] The following components are marked in the figure: first light-emitting device 100, first LED 111, first substrate 112, first lens 113, diffuser plate 120, first housing 130, first panel 140, second light-emitting device 200, second LED 211, second substrate 212, second lens 213, transparent plate 220, second housing 230, second panel 240, and driving device 300. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0027] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0029] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0030] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0031] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0032] Example 1

[0033] This invention provides a lighting device that can reduce visually perceived blue light. See also: Figure 1 The system includes a first light-emitting device 100 and at least two second light-emitting devices 200. Preferably, the at least two second light-emitting devices 200 surround the first light-emitting device 100. Preferably, the second light-emitting devices 200 and the first light-emitting device 100 are hinged in a manner that they emit light in the same direction. Preferably, the color temperature of the first light-emitting device 100 is greater than the color temperature of the second light-emitting devices 200.

[0034] When using the lighting device provided by this utility model for illumination, the light entering the human eye includes high color temperature light emitted from the first light-emitting device 100 and low color temperature light emitted from the second light-emitting device 200, thereby reducing the proportion of blue light in the light perceived by the human eye, thus reducing the intensity of perceived blue light, relieving visual fatigue and dry eyes, and preventing retinal damage caused by excessive blue light.

[0035] See Figure 2 Preferably, the first light-emitting device 100 includes a first light source plate and a diffuser plate 120. Preferably, a plurality of first LEDs 111 are arranged on one side of the first light source plate. Preferably, the first light source plate includes a first substrate 112, a plurality of first LEDs 111, and a plurality of first lenses 113. The first lenses 113 correspond one-to-one with the first LEDs 111. The plurality of first LEDs 111 are arranged at intervals on one side of the first substrate 112. The first lenses 113 are disposed in the light-emitting direction of the first LEDs 111 and cover the first LEDs 111. Preferably, after the first lenses 113 cover the first LEDs 111, the light-emitting angle of the first lenses 113 is 30-60°. Preferably, the first light source plate includes at least two first substrates 112, and the first substrates 112 are electrically connected in series or in parallel. Preferably, the first substrate 112 is an aluminum-based circuit board. Preferably, the diffuser plate 120 is disposed on the side of the first light source plate near the first LEDs 111. Preferably, the diffuser plate 120 is disposed in the light-emitting direction of the first light source plate and is parallel to the first light source plate. Preferably, the diffuser plate 120 is made of one or more plastics selected from polycarbonate (PC), polystyrene (PS), and polymethyl methacrylate (PMA). The diffuser plate 120 is disposed in the light-emitting direction of the first light source plate to diffuse and adjust the light emitted by the first LED 111 on the first light source plate, making it more uniformly distributed in space, thereby reducing direct light irradiation, avoiding glare and light pollution, and improving lighting quality. Preferably, the thickness of the diffuser plate 120 is 0.8–6 mm. Preferably, the haze of the diffuser plate 120 is less than 90%, and the light transmittance is greater than 50%.

[0036] Preferably, the first light-emitting device 100 further includes a first housing 130 and a first panel 140 for accommodating and encapsulating the first light source plate and the diffuser plate 120. The first housing 130 is configured as a container with an opening at the top or bottom. The first light source plate and the diffuser plate 120 are disposed within the first housing 130. The first panel 140 is disposed at the opening of the first housing 130.

[0037] Preferably, the first light-emitting device 100 has a quadrilateral cross section in the direction perpendicular to the light emission direction, and each side is connected to the second light-emitting device 200.

[0038] See Figure 2 Preferably, the first outer casing 130 is configured as a square box with an opening at the bottom. The side of the first substrate 112 away from the first LED 111 is connected to the inner top of the first outer casing 130. The diffuser plate 120 is connected to the inner sidewall of the first outer casing 130, and the diffuser plate 120 is parallel to the first substrate 112, that is, the diffuser plate 120 is parallel to the first light source plate. The first panel 140 is disposed at the opening of the first outer casing 130. Preferably, the first panel 140 is configured as a hollow frame, and the edge of the frame is connected to the opening of the first outer casing 130.

[0039] See Figure 2 Preferably, the second light-emitting device 200 includes a second light source plate and a transparent plate 220. Preferably, the second light source plate has a plurality of second LEDs 211 arranged on one side. The transparent plate 220 is disposed in the light-emitting direction of the second light source plate and is parallel to the second light source plate. Preferably, the transparent plate 220 is disposed on the side of the second light source plate closer to the second LEDs 211. Preferably, the transparent plate 220 is made of one or more plastics such as polycarbonate (PC), polystyrene (PS), and polymethyl methacrylate (PMA). The transparent plate 220 is disposed in the light-emitting direction of the second light source plate.

[0040] Preferably, the second light source board includes: a second substrate 212, a plurality of second LEDs 211, and a plurality of second lenses 213. Each second lens 213 corresponds to one second LED 211. Preferably, after the second lens 213 covers the second LEDs 211, the light emission angle of the second lens 213 is 15–75°. The plurality of second LEDs 211 are arranged at intervals on one side of the second substrate 212. The second lenses 213 are positioned in the light emission direction of the second LEDs 211 and cover the second LEDs 211. Preferably, the second substrate 212 is an aluminum-based circuit board.

[0041] Preferably, the second light-emitting device 200 further includes a second housing 230 and a second panel 240 for accommodating and encapsulating the second light source plate and the transparent plate 220. The second housing 230 is configured as a container with an opening at the top or bottom.

[0042] See Figure 2 Preferably, the second outer shell 230 is configured as an elongated box with an opening at the bottom. The side of the second substrate 212 away from the second LED 211 is connected to the inner top of the second outer shell 230. The transparent plate 220 is connected to the inner sidewall of the second outer shell 230, and the transparent plate 220 is parallel to the second substrate 212, that is, the transparent plate 220 is parallel to the second light source plate. Preferably, the second panel 240 is disposed at the opening of the second outer shell 230. Preferably, the second panel 240 is configured as a hollow frame, and the edge of the frame is connected to the opening of the second outer shell 230.

[0043] Preferably, four second light-emitting devices 200 surround the first light-emitting device 100, and each of the four second light-emitting devices 200 is hinged to the first light-emitting device 100. See also Figure 1 Preferably, the angle between the second light-emitting device 200 and the first light-emitting device 100 is 15 to 75°.

[0044] Preferably, the first light-emitting device 100 has a color temperature ≤ 6500K, an illumination power of 20–300W, a color rendering index Ra ≥ 80, and a luminous efficacy ≥ 60 lm / W. The second light-emitting device 200 has a color temperature of 1000–4500K, an illumination power of 20–90W, a luminous flux ≥ 20 lm, a blue light ratio of < 6%, a half-wavelength width > 30 nm, and a peak wavelength of 630–760 nm. Preferably, the illuminance of the first light-emitting device 100 is lower than that of the second light-emitting device 200.

[0045] Preferably, the second LED 211 includes a red LED with an emission wavelength of 630–760 nm. The emission wavelength of the red LED is located at a specific value or within a certain band between 630 and 760 nm. Preferably, the red LED includes: a single-wavelength red LED with an emission wavelength located at a specific value between 630 and 760 nm, and a broadband red LED with an emission wavelength located within a certain band between 640 and 720 nm.

[0046] Preferably, the second LED 211 is a single-wavelength red LED or a broadband red LED. A single second light-emitting device 200 has the following characteristics: color temperature 1000–1700K, illumination power 20–60W, luminous flux ≥20lm, blue light <2% in the color ratio, and half-wavelength width >30nm.

[0047] Preferably, the second LED 211 includes: a white LED, a single-wavelength red LED, and a broadband red LED. A single second light-emitting device 200 has the following characteristics: emission color temperature 1700–2200K, illumination power 20–90W, luminous flux ≥30lm, blue light <3% in the color ratio, half-wavelength width >100nm, and color rendering index ≥70.

[0048] Preferably, the second LED 211 comprises: a white LED and a single-wavelength red LED, or a white LED and a broadband red LED. A single second light-emitting device 200 has the following characteristics: emission color temperature 2200–3000K, illumination power 20–90W, luminous flux ≥60lm, blue light <4% in the color ratio, half-wavelength width >100nm, and color rendering index ≥70.

[0049] Preferably, the second LED 211 comprises: a white LED and a single-wavelength red LED, or a white LED and a broadband red LED. A single second light-emitting device 200 has the following characteristics: emission color temperature 3000–4500K, illumination power 20–90W, luminous flux ≥90lm, blue light <6% in the color ratio, half-wavelength width >100nm, and color rendering index ≥70.

[0050] Preferably, the second LED211 is a broadband red LED with a peak wavelength of 640–720 nm and a half-wavelength > 60 nm. Preferably, the LED involved in this embodiment can be packaged in mainstream package specifications such as 2835, 3030, 3535, 5050, and 5630.

[0051] Example 2

[0052] This embodiment provides a lighting system that can reduce visually perceived blue light. The lighting system includes a lighting device and a driving device 300. Preferably, in this embodiment, the lighting device is the blue light-reducing lighting device involved in Embodiment 1. The blue light-reducing lighting device and the driving device 300 are respectively electrically connected to the driving device 300.

[0053] See Figure 1 Preferably, the angle between the second light-emitting device 200 and the first light-emitting device 100 can be adjusted according to the distance between the first light-emitting device 100 and the irradiated surface and the area of ​​the irradiated surface. Preferably, the angle between the second light-emitting device 200 and the first light-emitting device 100 is 15° to 75°.

[0054] See Figure 1 Preferably, the driving device 300 is disposed on the top of the outer surface of the first light-emitting device 100. The driving device 300 is electrically connected to the first light source plate in the first light-emitting device 100 and the second light source plate in the second light-emitting device 200, respectively.

[0055] Preferably, the driving device 300 is electrically connected to the first light source board and the second light source board via wires, and is used to supply power to the first light-emitting device 100 and the second light-emitting device 200. Preferably, the driving device 300 can be an LED driver controller.

[0056] See Figure 1The lighting equipment can be installed on the ceiling of an office or work environment. The driving device 300 supplies power to the first light-emitting device 100 and the second light-emitting device 200, illuminating the lighting equipment and forming a main visual perception area below it. Within this main visual perception area, the light perceived by the human eye includes high color temperature light emitted from the first light-emitting device 100 and low color temperature light emitted from the second light-emitting device 200. This reduces the proportion of blue light in the perceived light, thereby reducing the intensity of perceived blue light, alleviating visual fatigue and dry eyes, and preventing retinal damage caused by excessive blue light. The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lighting device that reduces visually perceived blue light, characterized in that, include: A first light-emitting device (100) and at least two second light-emitting devices (200); The at least two second light-emitting devices (200) surround the first light-emitting device (100), and the second light-emitting devices (200) are hinged to the first light-emitting device (100) in a manner that emits light in the same direction; The first light-emitting device (100) has a higher color temperature than the second light-emitting device (200).

2. The lighting device for reducing visually perceived blue light according to claim 1, characterized in that, The first light-emitting device (100) includes: A first light source board, wherein a plurality of first LEDs (111) are arranged on one side of the first light source board. A diffuser plate (120) is disposed in the light emission direction of the first light source plate, and the diffuser plate (120) is disposed parallel to the first light source plate; The first light source board includes: A first substrate (112), a plurality of first LEDs (111) and a plurality of first lenses (113); the first lens (113) corresponds one-to-one with the first LED (111); A plurality of the first LEDs (111) are arranged at intervals on one side of the first substrate (112); The first lens (113) is positioned in the light-emitting direction of the first LED (111) and covers the first LED (111).

3. A lighting device for reducing visually perceived blue light according to claim 2, characterized in that, The first light-emitting device (100) further includes: a first housing (130) and a first panel (140) for accommodating and encapsulating the first light source plate and the diffuser plate (120). The first outer casing (130) is configured as a container with an opening at the top or bottom; The first light source plate and the diffuser plate (120) are disposed inside the first housing (130); The first panel (140) is disposed at the opening of the first housing (130).

4. The illumination device of claim 3, wherein the phosphor layer is configured to reduce the perceived blue light by at least 20%. The second light-emitting device (200) includes: The second light source board has a number of second LEDs (211) arranged on one side. A transparent plate (220) is disposed in the light-emitting direction of the second light source plate, and the transparent plate (220) is disposed parallel to the second light source plate; the second light source plate includes: A second substrate (212), a plurality of second LEDs (211), and a plurality of second lenses (213); the second lenses (213) correspond one-to-one with the second LEDs (211); A plurality of the second LEDs (211) are arranged at intervals on one side of the second substrate (212); The second lens (213) is positioned in the light-emitting direction of the second LED (211) and covers the second LED (211).

5. The illumination device of claim 4, wherein the phosphor is a blue emitting phosphor. The second light-emitting device (200) further includes: a second housing (230) and a second panel (240) for accommodating and encapsulating the second light source plate and the transparent plate (220); The second outer casing (230) is configured as a container with an opening at the top or bottom; The second light source plate and the transparent plate (220) are disposed inside the second housing (230); The second panel (240) is disposed at the opening of the second housing (230).

6. The illumination device of claim 5, wherein the phosphor is a blue emitting phosphor. The first lens (113) has an output angle of 30~60°, and the second lens (213) has an output angle of 15~75°.

7. A lighting device for reducing visually perceived blue light according to claim 6, characterized in that, The first light-emitting device (100) has a light emission color temperature ≤6500K, an illumination power of 20~300W, a color rendering index Ra≥80, and a luminous efficacy ≥60lm / W; The second light-emitting device (200) has a light emission color temperature of 1000~4500K, an illumination power of 20~90W, a luminous flux of ≥20lm, a blue light ratio of <6%, a half-wavelength of >30nm, and a peak wavelength of 630~760nm.

8. The illumination device of claim 7, wherein the illumination device is configured to reduce the visual perception of blue light. The second LED (211) includes a red LED with an emission wavelength of 630~760nm; The red LED includes a single-wavelength red LED with an emission wavelength located at a specific value between 630 and 760 nm. A broadband red LED with an emission wavelength in a certain band between 640 and 720 nm.

9. A lighting device for reducing visually perceived blue light according to claim 8, characterized in that, The first light-emitting device (100) has a quadrilateral cross section in the direction perpendicular to the light emission direction, and each side is connected to the second light-emitting device (200).

10. A lighting device for reducing visually perceived blue light according to claim 9, characterized in that, The second LED (211) is a single-wavelength red LED or a broadband red LED; A single second light-emitting device (200): luminous color temperature 1000~1700K, illumination power 20~60W, luminous flux ≥20lm. In the light color ratio, blue light is less than 2%, and the half-wavelength is greater than 30nm.

11. The illumination device of claim 9, wherein the illumination device is configured to reduce the visual perception of blue light. The second LED (211) includes: a white LED, a single-wavelength red LED, and a broadband red LED; The second light-emitting device (200) has the following characteristics: light emission color temperature of 1700~2200K, illumination power of 20~90W, luminous flux ≥30lm, blue light <3% in the light color ratio, half-wavelength >100nm, and color rendering index ≥70.

12. The illumination device of claim 9, wherein the illumination device is configured to reduce the visual perception of blue light. The second LED (211) includes: a white LED and a single-wavelength red LED, or a white LED and a broadband red LED. LED; The second light-emitting device (200) has the following characteristics: light emission color temperature 2200~3000K, illumination power 20~90W, luminous flux ≥60lm, blue light <4% in the light color ratio, half-wavelength >100nm, and color rendering index ≥70.

13. The illumination device of claim 9, wherein the illumination device is configured to reduce the visual perception of blue light. The second LED (211) includes: a white LED and a single-wavelength red LED, or a white LED and a broadband red LED; The second light-emitting device (200) has the following characteristics: light emission color temperature of 3000~4500K, illumination power of 20~90W, luminous flux ≥90lm, blue light <6% in the light color ratio, half-wavelength >100nm, and color rendering index ≥70.

14. The illumination device of claim 2, wherein, The first light source board includes at least two first substrates (112), and the first substrates (112) are electrically connected in series or in parallel.

15. A lighting system that reduces visually perceived blue light, characterized in that, The device includes a lighting device and a driving device (300) for reducing visually perceived blue light as described in any one of claims 1 to 14; the first light source board and the second light source board are respectively electrically connected to the driving device (300).

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