A super-long endurance all-black environment long afterglow photoelectric combination marking device

Abstract

The application discloses a kind of full black environment long afterglow photoelectric combination identification devices of ultra-long endurance time, including long afterglow light board, shell, time control lighting module, long afterglow light board is set on the upper portion of shell, time control lighting module is set in the region surrounded by long afterglow light board and shell;Time control lighting module includes power supply, switch shell, ultraviolet lamp by wire series connection, two electrodes are provided in switch shell, photo-induced deformation sheet, two electrodes are not connected, photo-induced deformation sheet one end is fixed on switch shell, the other end surface is wrapped with conductive material, when photo-induced deformation sheet is not deformed, the one end of photo-induced deformation sheet wrapped with conductive material is connected on two electrodes, circuit is closed;When photo-induced deformation sheet occurs bending deformation, the one end of photo-induced deformation sheet wrapped with conductive material is separated from electrode, circuit is disconnected.The application does not need additional energy standby power consumption is 0, all power consumption is the power consumption of light source lighting, endurance time is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of long-afterglow luminescent sign technology, specifically to a long-afterglow optoelectronic combined sign device for completely dark environments with ultra-long battery life. Background Technology

[0002] Long-afterglow luminescent materials, also known as phosphorescent materials, are a type of photoluminescent material. When excited by a light source, they can emit visible light and store some of the light energy; when the light stops, they slowly release the stored energy in the form of light. They have strong application value and great development prospects in fields such as safety indication, landscape lighting, and instrument night vision.

[0003] However, the afterglow brightness of long-afterglow luminescent materials decreases significantly over time. Although many products meet current standards (attenuation to 0.32 mcd / m²), the afterglow brightness remains relatively constant. 2 While it can maintain high brightness for over 20 hours, its afterglow after one hour is barely visible to the human eye in non-extreme darkness, significantly limiting its applications. To achieve all-weather high-brightness displays, a photoelectric combination approach is typically used, integrating the long-persistence material with a power source. Based on the perceptual characteristics of the human eye and the afterglow properties of the material, the switching duration of the excitation light source is precisely set, resulting in high-brightness, long-persistence displays suitable for various environments. Since a relatively short excitation time yields a long afterglow effect, this solution has low overall energy consumption, making it a good choice.

[0004] Chinese patent application CN106028512A discloses a method for combining long-afterglow materials with an LED system. This method uses a time-control circuit to periodically activate the LED, exciting the long-afterglow material and achieving high brightness. Chinese patent CN217302518U also provides a solution using a photoresistor to detect the brightness of the long-afterglow material. When the brightness decreases, the resistance of the photoresistor increases, triggering the time-control circuit to illuminate the LED and excite the long-afterglow material. Both solutions are relatively effective. However, they both rely on a time-control circuit to control the LED. This time-control circuit still has significant standby power consumption when the LED is not lit. Therefore, in prolonged completely dark environments, such as underground caverns, the battery life of these devices is still insufficient. Consequently, these devices are generally used in conjunction with solar panels in environments with regular day-night cycles.

[0005] The demand for luminous signs is also strong in long-term dark environments such as underground caves and mines. If a solution can effectively reduce the standby power consumption of long-afterglow photoelectric devices, so that the power of a single dry cell battery can keep the long-afterglow luminous sign on for more than 30 days, then the deployment of luminous signs in dark environments will be very simple, and the market for such ultra-long-lasting long-afterglow luminous signs will be huge. Summary of the Invention

[0006] To fundamentally solve the problem of insufficient battery life in photoelectric combined long-afterglow luminescent signs, this invention proposes an ultra-long-lasting long-afterglow photoelectric combined sign device for completely dark environments. The device includes a long-afterglow luminescent panel, a housing, and a time-controlled lighting module. The long-afterglow luminescent panel is located on the upper part of the housing, and the time-controlled lighting module is located within the area enclosed by the long-afterglow luminescent panel and the housing. The time-controlled lighting module includes a power supply, a switch housing, and an ultraviolet lamp connected in series via wires. The switch housing contains two electrodes and a photodeformation sheet. The two electrodes are connected to the power supply and the ultraviolet lamp respectively via wires, but are not directly connected. One end of the photodeformation sheet is fixed to the switch housing, and the other end is covered with a conductive material. When the photodeformation sheet is not deformed, the end covered with the conductive material is connected to the two electrodes, and the circuit is closed. When the photodeformation sheet undergoes bending deformation, the end covered with the conductive material detaches from the electrode, and the circuit is broken.

[0007] Since the system's switching is not controlled by the timing circuit, the circuit is completely disconnected during the interval when the excitation lamp is not lit. The deformation of the azobenzene polymer sheet is achieved under the action of light and is only an additional product of this system, requiring no additional power supply. Therefore, the standby power consumption is 0, and all the power consumption of the system is the power consumption when the light source is lit. With the same battery capacity, the battery life is effectively improved.

[0008] Compared with the prior art, the beneficial effects of the present invention are:

[0009] 1. Simple structure, low cost, and easy for large-scale industrial production;

[0010] 2. The battery life is effectively extended, enabling long-term illumination in completely dark environments such as mines and underground caverns. It can also be used for emergency indication in various outdoor activities, and has a very broad market prospect. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of the present invention.

[0013] Figure 2 This is a schematic diagram of the time-controlled lighting module structure of the present invention.

[0014] Figure 3 This is a brightness effect diagram of the present invention.

[0015] In the diagram: 1. Long afterglow light-emitting panel; 2. Housing; 3. Time-controlled lighting module; 4. Photodeformation sheet; 5. Electrode; 6. Switch housing; 7. Ultraviolet lamp; 8. Power supply. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] like Figure 1-2 As shown, this invention discloses an ultra-long-lasting, fully dark environment long-afterglow photoelectric combined marking device, including a long-afterglow emitting panel 1, a housing 2, and a time-controlled lighting module 3. The long-afterglow emitting panel 1 is disposed on the upper part of the housing 2. The long-afterglow emitting panel 1 is a yellow-green semi-transparent emitting panel containing SrAl2O4:Eu,Dy long-afterglow emitting material, which slowly emits yellow-green light under ultraviolet excitation, with a center wavelength of 520nm and a full width at half maximum (FWHM) of 70nm. The long-afterglow emitting panel 1 is made of acrylic. The time-controlled lighting module 3 is disposed in the area enclosed by the long-afterglow emitting panel 1 and the housing 2. The time-controlled lighting module 3 includes a power supply 8 connected in series with wires and a switch housing. 6. The UV lamp 7 and power supply 8 are AA disposable dry batteries. The UV lamp 7 has a center wavelength of 365nm and a half-width at half-maximum (WHM) of 30nm. The switch housing 6 contains two electrodes 5 and a photodeformation sheet 4. The two electrodes 5 are connected to the power supply and UV lamp 7 respectively via wires, but are not directly connected. One end of the photodeformation sheet 4 is fixed to the switch housing 6, and the other end is covered with a conductive material. When the photodeformation sheet 4 is not deformed, the end covered with the conductive material is connected to the two electrodes 5, and the circuit is closed. When the photodeformation sheet 4 bends and deforms, the end covered with the conductive material detaches from the electrode 5, and the circuit is broken. The photodeformation sheet 4 is an azobenzene polymer sheet. The azobenzene polymer sheet bends under UV light and returns to its initial shape under visible light. The working process of the marking device is as follows:

[0018] S1: When the azobenzene polymer sheet is not deformed, one end of the azobenzene polymer sheet wrapped with conductive material is connected to the two electrodes 5, the circuit is closed, and the ultraviolet lamp 7 is lit.

[0019] S2: When the UV lamp 7 is lit, the azobenzene polymer sheet gradually bends. After a preset time of 1 minute, the end of the azobenzene polymer sheet wrapped with conductive material detaches from the electrode 5, the circuit is broken, and the UV lamp 7 is turned off.

[0020] S3: The light emitted by the long afterglow light-emitting plate 1 causes the azobenzene polymer sheet to gradually return to its initial shape. After a preset time of 22 minutes, one end of the azobenzene polymer sheet wrapped with conductive material is connected to the two electrodes 5, the circuit is closed, and the ultraviolet lamp 7 is lit.

[0021] Repeat steps S2-S3 in a loop to produce an intermittent excitation effect.

[0022] The luminous brightness of this invention is as follows Figure 3 As shown, the ultraviolet LEDs are lit for 1 minute every 22 minutes, and the minimum brightness of the long-afterglow luminescent panel is 200 mcd / m². 2 The above results show very high visibility in dark environments.

Claims

1. A photoelectric combined marking device with ultra-long battery life in completely dark environments and long afterglow, characterized in that: The system includes a long-afterglow light-emitting panel (1), a housing (2), and a time-controlled lighting module (3). The long-afterglow light-emitting panel (1) is located on the upper part of the housing (2), and the time-controlled lighting module (3) is located in the area enclosed by the long-afterglow light-emitting panel (1) and the housing (2). The time-controlled lighting module (3) includes a power supply (8) connected in series with wires, a switch housing (6), and an ultraviolet lamp (7). The switch housing (6) contains two electrodes (5) and a photodeformation sheet (4). The two electrodes (5) are connected to the power supply and the ultraviolet lamp (7) respectively through wires. The two electrodes (5) are not connected to each other. The photodeformation sheet (4) is an azobenzene polymer sheet. The azobenzene polymer sheet will bend under ultraviolet light and return to its initial shape under visible light. One end of the photodeformation sheet (4) is fixed to the switch housing (6), and the other end is covered with conductive material. When the photodeformation sheet (4) is not deformed, the end of the photodeformation sheet (4) covered with conductive material is connected to the two electrodes (5), and the circuit is closed. When the photodeformation sheet (4) bends and deforms, the end of the photodeformation sheet (4) covered with conductive material is detached from the electrode (5), and the circuit is disconnected.

2. The ultra-long battery life, long afterglow photoelectric combined marking device for completely dark environments according to claim 1, characterized in that: The long afterglow luminescent plate (1) is a yellow-green semi-transparent luminescent plate that slowly releases yellow-green light under ultraviolet excitation, with a luminescence wavelength between 480-560nm.

3. The ultra-long battery life, long afterglow photoelectric combined marking device for completely dark environments according to claim 1, characterized in that: The long afterglow luminescent panel (1) is made of one of the following materials: plastic, ceramic, or glass.

4. The ultra-long battery life, long afterglow photoelectric combined marking device for completely dark environments according to claim 1, characterized in that: The ultraviolet lamp (7) emits light at a wavelength between 295-400nm.

5. The ultra-long battery life, long afterglow photoelectric combined marking device for completely dark environments according to claim 1, characterized in that: The power source (8) is one of the following: dry cell battery, lead-acid battery, or lithium battery.

6. The ultra-long battery life, long afterglow photoelectric combined marking device for completely dark environments according to claim 1, characterized in that: The working process of the marking device is as follows: S1: When the azobenzene polymer sheet is not deformed, one end of the azobenzene polymer sheet wrapped with conductive material is connected to the two electrodes (5), the circuit is closed, and the ultraviolet lamp (7) is lit. S2: When the ultraviolet lamp (7) is lit, the azobenzene polymer sheet gradually bends. After a preset time T1, the end of the azobenzene polymer sheet wrapped with conductive material is separated from the electrode (5), the circuit is broken, and the ultraviolet lamp (7) is turned off. S3: The light emitted by the long afterglow light plate (1) causes the azobenzene polymer sheet to gradually return to its initial shape. After a preset time T2, one end of the azobenzene polymer sheet wrapped with conductive material is connected to the two electrodes (5), the circuit is closed, and the ultraviolet lamp (7) is lit. Repeat steps S2-S3.

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