TWM472151U - Blue ray filtering mask and bulb having the mask - Google Patents

Description

Blue light filter and light bulb with the same

A mask and a light bulb having the same, in particular, a bulb using a white light emitting diode and provided with a blue light shielding mask.

Since Nakamura Shuji invented the blue light-emitting diode, the blue light-emitting diode chip is mixed with the yellow phosphor powder in front to form a white light-emitting diode component (hereinafter referred to as LED), and the LED technology is rapidly in various fields of illumination and illumination. Rise, gradually replacing the trend of traditional lighting devices, providing white light illumination visible to the naked eye. Among the various light mixing modes, especially the combination of the white light emitted by the above-mentioned blue light mixed yellow fluorescent powder, it is generally favored by manufacturers because of its low cost. And because of the power saving of the LED and the high efficiency of energy conversion, the fluorescent LED technology has been widely used in white light lighting equipment.

However, such a fluorescent LED is mainly composed of blue light, and the blue light has a shorter wavelength and a higher frequency, and the energy of the individual photons is higher. Therefore, medicine has confirmed that long-term exposure of the naked eye to such light waves is prone to undesirable stimuli. More doctors, don't let the eyes of infants and children stare at the LED light source with blue light, so as not to endanger the eyes and health of infants and young children. In recent years, there have been cases in which people have long watched a mobile phone or a computer screen with LED as a backlight, which in turn hurts eyesight.

Under strong sunlight such as sunlight, the human eye reduces the incidence of external strong light by reducing the pupil. In contrast, when the overall illumination intensity of the indoor lighting source is not as good as that of daylight, the pupil will expand. Large to increase the amount of light in order to examine the objects in front of you. Unfortunately, the damage of the photon to the eye is not based on the amount of the overall photon, but depends on the energy carried by the individual photons to determine whether it will damage the rhodopsin. Although a lot of red light is glaring, the damage to the eye may still be less than Lesser amount of blue-violet or ultraviolet light. Therefore, when the illumination light is filled with blue light, the reading under the lamp will cause a high proportion of blue light to enter the fundus, and when the effect is slight, it will cause short-term discomfort such as photophobia and fatigue. If the reader unfortunately has a good habit of reading for a long time, or excessively investing in a workaholic who is unable to extricate himself, the eyes are constantly stimulated by blue light, and even severely, the retina may be damaged.

In summary, in order to avoid indoor white light fluorescent LEDs may cause harm to the user's eyes, especially for visual workers who read a lot or are exposed to such environment for a long time, whether the light source of indoor lighting is friendly or not will become Another guarantee to maintain the health of the user's vision. Therefore, the present invention proposes a solution to provide a blue-light filtering structure that maintains the intensity of the blue light excited by the LED at a lower ratio, providing friendly indoor lighting.

One of the objects of the present invention is to provide a blue light filtering mask and a light bulb having the same to prevent a large amount of blue light from irritating the naked eye, and the environment in which the eye is used is gentle and friendly.

Another object of the present invention is to provide a blue light filtering mask and a bulb having the same, which expands the application range of the white fluorescent light emitting diode, and further popularizes the technology.

In order to achieve the above object, the present invention discloses a blue light filtering mask disposed on a light emitting diode bulb, the light emitting diode bulb including a bulb outer casing and a substrate, the bulb outer casing including a rear surface formed with a perforation a light bulb, and a lamp holder for sealing the through hole; the substrate is disposed in the bulb casing and electrically connected to the lamp holder, and the substrate is disposed on the front side of the light transmissive bulb White fluorescent luminescent diode crystal; this filter The blue light mask comprises: a bonding device for mounting on the light-transmissive bulb; a mask body assembled to the light-transmitting bulb through the bonding device; and a layer of optical coating formed on the mask body The layer lowers the transmittance of the blue light component emitted by the white light-emitting phosphor diode.

The above-mentioned filter blue light mask is incorporated into the light-emitting diode bulb to form a bulb with a blue light-shielding mask, comprising: a bulb outer casing, including a light-transmissive glass bulb with a perforation formed at the rear, and a lamp for closing the perforation a substrate disposed in the bulb casing and electrically connected to the lamp holder, and the substrate is provided with a plurality of white fluorescent phosphor diodes on the front side of the transparent glass envelope And a blue screen filter comprising: a bonding device for mounting to the light-transmissive bulb; a mask body assembled to the light-transmitting bulb through the bonding device; and a layer formed on the mask The optical coating layer on the body reduces the transmittance of the blue light component emitted by the white light-emitting diode crystal grains.

The blue light shielding mask and the light bulb having the same are disclosed in the present invention, and the blue light shielding material can not penetrate the blue light component in a large amount, and the yellow fluorescent light excited by the blue light is not affected by the blue light shielding mask. The penetration rate is massively penetrated. Through the structure of the case, the intensity ratio of blue-yellow light changes, the blue color is yellow and long, and the light is relatively gentle, which is suitable for general indoor lighting.

2‧‧‧Light bulb housing

20‧‧‧Perforation

21‧‧‧ lamp holder

22, 22'‧‧‧Light glass bulb

4‧‧‧Substrate

41‧‧‧White Light Fluorescent Light Emitting Diode Grains

42‧‧‧ front side

6‧‧‧Filter blue light mask

60‧‧‧ combined device

61‧‧‧Optical coating

62‧‧‧mask body

8'‧‧‧Heat fins

1 is an exploded view of the first embodiment of the present invention for illustrating the connection relationship between the majority structures; FIG. 2 is a perspective view of the first embodiment of the present invention for illustrating the blue light shielding cover to the transparent glass Shell; Figure 3 is a side view of the first embodiment of the creation to illustrate the optical coating layer; 4 is a schematic view showing the operation of the first embodiment of the present invention, illustrating that the high-frequency blue light (solid line) is susceptible to reflection by the optical coating layer, and the yellow fluorescent light (dashed line) is easy to penetrate; FIG. 5 is a second embodiment of the creation. Side view of the heat sink fins.

In the first preferred embodiment of the present invention, please refer to FIG. 1 to FIG. 3. Referring to FIG. 1 to FIG. 3 together, the bulb housing 2 of the present invention has a light-transmissive bulb 22, which is a drop-shaped shell formed by, for example, transparent glass, and a tip is formed at the top of the figure. The through hole 20 is provided with a lamp holder 21 made of, for example, a metal material to shield the through hole 20. The lamp holder 21 is formed with two poles electrically connected to the power source, and the inner side is connected with a wire passing through the through hole 20, and the external power source is electrically connected. It is guided to the inner substrate 4. A plurality of white fluorescent light emitting diode crystal grains 41 are disposed on the front side surface 42 of the substrate 4 facing the illumination direction of the light-transmitting bulb 22. When the socket 21 is energized, the substrate 4 is enabled to illuminate the white fluorescent phosphor diode 41, thereby emitting blue light and allowing the yellow phosphor in front to photoluminate and mix white light.

In order to weaken the penetrating blue light, a gentle illumination required by the environment is provided. In this example, a separate blue screen cover 6 is connected to the light-transmissive bulb 22 of the bulb casing 2 through the bonding device 60. The binding device 60 is an external collar for socketing the blue light shielding cover 6 and the bulb outer casing 2. When the sleeve is combined with the two, the mask body 62 connected to the bonding device 60 is corresponding to the light-transmitting bulb 22. The transparent mask body 62 is provided for the purpose of coating a layer of the optical coating layer 61 thereon in a coating manner; since such a coating layer is thin and cannot be separately formed, the mask body 62 becomes optical. The support layer coated with the coating layer 61.

In this example, the optical coating layer is disposed on the side of the mask body near the light-transmitting bulb, that is, the inner side of the mask body, in order to prevent unnecessary contact and scratches from causing the optical coating layer to fall off. This is indicated by a broken line in FIG. However, the optical coating layer is disposed outside the mask body The side is also within the technical scope of this case.

Referring to FIG. 4 together, the optical coating layer 61 in this embodiment minimizes the transmittance of light waves (solid arrows) having a wavelength of 400 to 480 nm in a reflective manner. At the same time, a large amount of yellow fluorescent light (dashed arrow) is allowed to penetrate, so that the intensity ratio of blue light and yellow fluorescent light to each other in the divergent light beam is increased. In short, through the design of the above structure, the case can adjust the indoor white light LED lamp with more blue light and more dazzling to the lighter and lighter indoor light source of yellow fluorescent light; making such white light LED more in line with the customer's habit of indoor lighting. . Through this improvement, it is expected to expand the market demand for indoor white LED lighting.

It should be noted that in this case, the bulb and the blue-screen filter are separate, and the bulb shell and the substrate are both LED bulbs, which can be illuminated without additional blue-screen mask; The effect of penetration. The blue screen mask of this case is also a separate assembly member, which is attached to the bulb casing by means of socket assembly; it can be separately manufactured and sold without being made or sold with the whole group of bulbs.

In the second preferred embodiment of the present invention, as shown in FIG. 5, in order to improve the heat dissipation effect of the bulb of the present invention, a plurality of heat dissipation fins 8' are added, which are extended from the substrate, penetrate through the transparent glass bulb 22', and are stuck in the same. The heat of the substrate can be exchanged with the airflow in the normal temperature air. At the same time, the substrate is formed into a smooth surface by techniques such as polishing. The utility model is that the light beam emitted by the LED is rebounded when it collides with the substrate, and is not absorbed and converted into heat energy. Through these two improvements, the temperature of the LED bulb is lowered, thereby improving the stability of use.

In addition, this example also improves the combination of the bulb casing and the blue screen filter. The coupling device is a layer of colloid which can be adhered to the light-transmitting bulb 22' in an adhesive manner. At the same time, considering the durability and safety of the product, here is a light-transmissive bulb 22' It is a plastic case. Generally common glass materials, if encountered in the case of extrusion, knocking, etc., it is easy to cause structural fragmentation. Thinner fragments will stick into the human foot and the skin will not be removed. The thicker fragments will easily cut the user's hand, and have the characteristics of fibers such as transparent and fine, making the lobes difficult to find and difficult to clean; The danger of hiding. This example is changed to a plastic material, which has the characteristics of collision resistance, drop resistance, and low material damage after damage, so as to improve the durability and safety of the lamp.

In summary, the blue screen filter and the bulb with the mask, the filtering blue light mask setting, assist the existing blue LED to stimulate the yellow fluorescent light to mix white light, so that the technology can adapt to the needs of indoor lighting, reduce the beam The composition of the blue light achieves a lighter output, increases the friendliness of use, and extends the application possibilities of the technology in the field of indoor lighting. However, the above descriptions are only the preferred embodiments of the present invention, and it is not possible to limit the scope of the implementation of the present invention, that is, the simple equivalent changes and modifications made by the applicant according to the scope of the patent application and the contents of the new manual are still It is within the scope of this new patent.

2‧‧‧Light bulb housing

20‧‧‧Perforation

21‧‧‧ lamp holder

22‧‧‧Light-transparent glass bulb

4‧‧‧Substrate

41‧‧‧White Light Fluorescent Light Emitting Diode Grains

42‧‧‧ front side

6‧‧‧Filter blue light mask

60‧‧‧ combined device

61‧‧‧Optical coating

62‧‧‧mask body

Claims (6)

A bulb having a blue light filtering mask, comprising: a bulb housing comprising a light-transmissive bulb with a perforation formed at the rear, and a lamp holder enclosing the perforation; a substrate disposed in the bulb housing and electrically Directly connected to the lamp holder, and the substrate is provided with a plurality of white light-emitting diodes on the front side of the light-transmitting bulb; and a blue-screen filter, comprising: one for mounting to the a bonding device on the light-transmissive bulb; a mask body connected to the bonding device; and an optical coating layer formed on the mask body, such that the blue light component of the white light-emitting diode body The penetration rate is reduced. A light bulb having a blue light shielding mask as described in claim 1, wherein the substrate is formed with a smooth surface for reflecting a large amount of light incident on the substrate. The light bulb having a blue light filtering mask according to claim 1, wherein the light transmissive glass bulb is a plastic outer casing. The light bulb having a blue light shielding mask according to claim 1, wherein the substrate is further formed with a plurality of heat dissipating fins penetrating and being disposed on the light transmissive bulb of the bulb outer casing. The light bulb having a blue light-shielding mask according to claim 1, wherein the bonding device is a layer of colloid for attaching to the light-transmitting glass bulb. A blue light filtering mask is disposed on a light emitting diode bulb, wherein the light emitting diode bulb comprises a bulb outer casing and a substrate, the bulb outer casing comprises a light transmissive glass bulb with a perforation formed at the rear, and the foregoing a perforated lamp holder; the substrate is disposed on the bulb housing And electrically connected to the lamp holder, and the substrate faces the front side of the light-transmissive bulb, and a plurality of white light-emitting diodes are disposed on the front side; the blue-screen mask includes: one for loading a bonding device disposed on the light-transmissive bulb; a mask body coupled to the bonding device; and an optical coating layer formed on the mask body, such that the white light-emitting diodes are formed The transmittance of the blue light component is lowered.