Visual protection device for dispatched personnel

Abstract

The present invention relates to a vision protection device (1) for response personnel, in order to reduce the impact of a potentially traumatic event on the response personnel, wherein at least one visual lens (6) of the vision protection device (1) is configured to reflect and / or absorb light with wavelengths above 640 nm, above 600 nm, above 560 nm or above 550 nm more strongly than light in the shorter wavelength wavelength ranges, the shorter wavelength wavelength ranges extending up to 640 nm, 600 nm, 560 nm or 550 nm.

Description

Technical Field

[0001] The present invention relates to the field of visual protection devices, particularly for humans, especially for emergency responders such as firefighters, police officers, rescue team members, disaster relief teams, soldiers, as well as for accident victims and witnesses.

Background Art

[0002] Visual protection devices, i.e., for example, protective glasses or face masks with a visual shield, such as a face shield, breathing mask or oxygen mask, are used by humans or emergency personnel, for example, to protect the eyes from harmful effects. Harmful effects include dust or debris, and in the case of breathing masks or oxygen masks, also smoke or toxic gases.

[0003] It is not uncommon for accident victims and witnesses and emergency personnel to face people who are partially severely injured or whose bodies are severed. Such scenes of injury and body severance remain in the memory of emergency personnel and often cause psychological problems such as post-traumatic stress disorder.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The problem of the present invention is to reduce the negative psychological impact suffered by humans, especially emergency personnel, in situations where they face injured and / or severed people.

Means for Solving the Problems

[0005] According to the present invention, this problem is solved in a visual protection device having at least one visual lens, wherein the visual lens is configured to reflect and / or absorb light having a wavelength greater than 640 nm, greater than 600 nm, greater than 560 nm or greater than 550 nm more strongly than light in a wavelength range of a shorter wavelength, where the wavelength range of the shorter wavelength extends up to 640 nm, 600 nm, 560 nm or 550 nm, and the filter range includes red light.

[0006] By reflecting and / or absorbing red light, i.e., filtering it out from the visible spectrum, the visual protection device causes people to perceive this color less or not at all. At this time, the red area in a person's field of vision is perceived as being considerably dark or black.

[0007] The degree to which colors and the experiences associated with them are remembered varies. In particular, even if red is not the most prominent among all colors, due to its very strong influence, the deployment situations where it was necessary to deal with and / or rescue seriously injured and deceased people remain particularly memorable over a long period and must be overcome repeatedly. Injured or severed people often bleed heavily, and the injured flesh and exposed internal organs of the injured or severed people appear red or reddish due to blood circulation and the like.

[0008] Since the visual protection device of the present invention filters out red, the degree to which the red area in a person's field of vision, i.e., the blood, injured flesh, internal organs, or severed limbs of an injured or severed person, remains in memory is weakened, so the burden on people in such situations is reduced, and the experience of suffering such psychological trauma can be overcome quickly.

[0009] For example, in the case of hazard symbols and traffic signs, since their shapes and corresponding pictograms can be clearly identified, the visual protection device of the present invention will not cause danger. Also, hazard symbols are often represented in orange, and in some cases, this color is not filtered out by the visual protection device of the present invention.

[0010] The visual protection device of the present invention is advantageously also suitable for people who accidentally encounter the injured or deceased. Therefore, for example, a corresponding visual protection device may be provided in a first aid kit.

[0011] These solutions are each advantageous in themselves, but can be further improved by various embodiments that can be arbitrarily combined with each other unless otherwise specifically mentioned. Hereinafter, such embodiments and the accompanying advantages will be described.

[0012] According to the first embodiment, the visual lens is configured to substantially completely reflect and / or absorb red light, that is, to filter it out. Essentially, this means that this light is filtered out, that is, reflected or absorbed, not only by at least 70%, at least 80% or at least 90%, but also by at least 95%, or in some cases so strongly that the wearer of the visual protection device cannot perceive it at all.

[0013] The advantage of this embodiment may be to reduce the degree to which an impression that may cause mental trauma is remembered.

[0014] As already described, the visual lens is configured to reflect and / or absorb light with a wavelength greater than 640 nm, greater than 600 nm, greater than 560 nm or greater than 550 nm more strongly than light in the wavelength range of shorter wavelengths, that is, to filter it out. The filter range in which the light is reflected and / or absorbed by the visual lens starts from any of the above wavelengths, and in this case, this wavelength can be called the lower wavelength value or the first wavelength value.

[0015] By configuring the visual lens to filter out light with wavelengths of at least 640 nm, at least 600 nm, at least 560 nm, or at least 550 nm, it is advantageous that not only red light is filtered out in the color spectrum. Certainly, even just filtering out red light in the color spectrum can significantly weaken the degree to which an impression that can already cause psychological trauma is remembered. However, in the color spectrum, red light is perceived by the human eye particularly by the so-called red cones, and its absorption maximum is typically near the wavelength of light of about 563 nm, which corresponds to the yellow-green color in the color spectrum. When the red cones are excited by light having a wavelength shorter than the red light in the spectrum, there is a risk of bringing about an association with an impression that causes psychological trauma even for other colors. This is because exactly the same cones are excited by red light and light with a wavelength of about 563 nm in the spectrum. Within the scope of the present disclosure, light of any wavelength that excites the red cones of the human eye, or at least light having the same wavelength and / or a longer wavelength than the wavelength of light near the absorption maximum of the red cones can be called red light. In particular, light having a wavelength within the aforementioned filter range can be called red light.

[0016] According to another embodiment, the visual lens is configured to reflect and / or absorb light with wavelengths up to 780 nm or 800 nm more strongly than light of at least one other color and / or light with a longer wavelength. That is, the filter range in which light is reflected and / or absorbed by the visual lens ends near one of the aforementioned wavelengths, in which case that wavelength can be called the upper wavelength value or the second wavelength value.

[0017] By configuring the visual lens to filter out light with a wavelength of up to 780 nm or up to 800 nm, and particularly when the visual lens does not have a structure or element, such as a coating, that reflects light with a wavelength exceeding the aforementioned wavelength, infrared light can still reach the emergency responders, which enables the emergency responders to perceive the surroundings in detail, for example, in the case of a fire. In particular, it is possible to sense a heat source, such as heat radiation from a fire.

[0018] According to a particularly preferred embodiment of the present invention, the visual lens is coated to provide a cut-off filter on the visual lens. At this time, blocking is preferably performed in the range of 640 nm to 780 nm.

[0019] According to another embodiment, the visual protection device has a band-stop filter or a notch filter for filtering light, whereby the light to be filtered out, i.e., the light that should not reach the eyes of the deployed personnel, is filtered out or blocked, i.e., reflected and / or absorbed.

[0020] According to another embodiment, the visual protection device has a band-pass filter for filtering that allows only the light that should reach the eyes of the deployed personnel to pass through.

[0021] The advantage of this embodiment may be that it is possible to accurately filter out or pass light according to the wavelength range.

[0022] Alternatively, according to another embodiment, the visual lens can be configured to specifically reflect, so as to also filter out infrared light, thereby protecting the deployed personnel from thermal radiation.

[0023] According to another embodiment of the present invention, the visual protection device is a face mask, and at least a part of the visual shield of the face mask is constituted by a visual lens. In particular, this part can be the part that the wearer of the visual protection device sees through the visual shield. Alternatively, the visual shield may be provided with visual lenses over its entire surface or may be formed from visual lenses.

[0024] The advantage of this embodiment may be that it can protect the deployed personnel not only from the burden of wearing an additional face mask but also from other harmful effects such as smoke or gas without wearing an additional face mask.

[0025] According to another embodiment of the present invention, the visual lens is shaped or curved in a cylindrical or spherical shape, at least for each segment or overall.

[0026] The advantage of this embodiment can be that, depending on the type of visual lens used, light is filtered particularly effectively, especially when the light hits the visual lens perpendicularly. Here, perpendicular means that the light hits the lens at an angle of 90° with respect to the surface of the visual lens. Within the scope of this specification, an angle deviating from 90° by up to ±5°, up to ±10° or up to ±15° may still be regarded as light incident perpendicularly.

[0027] For example, the visual protection device may have a predetermined line of sight direction, and along this line of sight direction, the wearer of the visual protection device looks through the visual protection device. The visual lens may be shaped or curved in a cylindrical or spherical shape, at least for each segment or overall, such that the direction of view is perpendicular to the outer surface of the portion of the visual lens through which the wearer looks through the visual lens. The angle between the direction of view and the outer surface may deviate by up to ±5°, up to ±10° or up to ±15° from 90°, or up to 25°, in order to still be regarded as perpendicular within the scope of the present disclosure.

[0028] According to another embodiment of the present invention, the visual protection device is a pair of glasses having at least one spectacle lens and, for example, two spectacle lenses, particularly protective glasses, and this at least one spectacle lens is at least partially or entirely constituted by the visual lens, or the two spectacle lenses are at least partially or entirely constituted by one visual lens each.

[0029] The advantage of this embodiment is that the visual protection device can be handled easily and flexibly.

[0030] According to another embodiment of the present invention, the protective glasses have a lens holding part, and at this time, at least one lens or a plurality of lenses and the lens holding part can be integrally formed, for example, from exactly the same material. This at least one lens can be formed from a vision lens. Each of the plurality of lenses can be formed from a vision lens. The at least one lens and the lens holding part can be formed from the material of the vision lens. The plurality of lenses and the lens holding part can be formed from the material of the vision lens.

[0031] The advantage of this embodiment may be that the vision protection device can be manufactured more easily.

[0032] According to another embodiment, the vision lens is provided with a reflective coating and / or an absorptive coating for reflecting and / or absorbing light.

[0033] The advantage of this embodiment may be that a coating with desired properties can be manufactured easily and economically. In particular, the coating can be applied to a commercially available vision protection device, either during or after the manufacture of the vision protection device, thereby significantly reducing the development and manufacturing costs of the vision protection device.

[0034] Alternatively or additionally, the material of the vision lens itself can be configured to reflect and / or absorb light of the aforementioned wavelength.

[0035] The advantage of this embodiment may be that a vision lens with desired properties can be manufactured easily and economically, for example, by injection molding.

[0036] According to another embodiment, the vision lens is essentially made of optical glass, such as mineral glass, or transparent plastic, such as polycarbonate, and optionally, a reflective coating and / or an absorptive coating for reflecting and / or absorbing light in a predetermined wavelength range is applied.

[0037] The red light may have a wavelength of light that reflects arterial and venous blood. The red light may correspond to or have a blood-red color. The blood-red color may be RAL Color 3020 or 3003.

[0038] The wavelength range to be reflected and / or absorbed may have the typical color of arterial and venous blood or a blood-red color, and optionally may have another wavelength belonging to red in the color spectrum or being absorbed to a considerable extent by red cones.

[0039] Within the scope of the present disclosure, the color may be a color of the visible light spectrum.

[0040] Hereinafter, for a better understanding of the present invention, reference is made to the drawings. The drawings only show a plurality of embodiments of the subject matter of the present invention. The features of the embodiments can be combined independently of each other.

[0041] In the drawings and the description of the drawings, the same reference numerals are used for the same parts or parts having the same function.

Brief Description of the Drawings

[0042]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Best Mode for Carrying Out the Invention

[0043] FIG. 1 schematically shows a transmission curve of a visual lens of a visual protection device according to the present invention, in which a transmittance T of the visual lens with respect to a wavelength λ of light is entered. For example, the transmittance T from 0% to 100% is entered on the vertical axis. On the horizontal axis, a wavelength range of a wavelength λ that includes at least partially the visible spectrum and optionally extends up to the infrared region is entered.

[0044] Light having a wavelength below a predetermined first wavelength value λ1 is transmitted through the visual lens with little blocking, so that, for example, more than 70%, more than 80%, or more than 90% of the light is transmitted.

[0045] At wavelengths equal to or greater than the first wavelength value λ1, the transmittance of light decreases significantly, so that less than 30%, less than 20%, less than 10%, or less than 5% of the light is transmitted. Since the visual lens can reflect and / or absorb light, this reduces or blocks the transmission of light through the visual lens. Therefore, light having a wavelength equal to or greater than the first wavelength value λ1 can be filtered out by the visual lens, partially, i.e., up to 70%, up to 80%, up to 90%, or up to 95% or more thereof, or, rather, completely, i.e., up to almost 100%.

[0046] The first wavelength value λ1 may be the shortest wavelength of the color spectrum or light regarded as red light in the present disclosure.

[0047] For example, the first wavelength value λ1 may be a wavelength of 550 nm, 560 nm, 600 nm, or 640 nm. Light having a wavelength above a predetermined wavelength among these can be called red light within the scope of the present disclosure. Alternatively, such light can be called long-wavelength light that remains strongly in memory and / or excites the red cones of the human eye more strongly compared to light of other wavelengths within the scope of the present disclosure.

[0048] The light removed by the filter may have a red component of the light reflecting arterial and venous blood or may be composed of the red component of the light. The light removed by the filter may be blood-red light. The blood-red color may be RAL color 3020 or 3003.

[0049] The wavelength range reflected and / or absorbed can have the color of arterial and venous blood or blood-red color, and optionally another wavelength belonging to red in the color spectrum or in the present disclosure.

[0050] Optionally, the visual lens can be configured to filter out only the light up to a predetermined second wavelength value λ2. The second wavelength value λ2 is preferably greater than the first wavelength value λ1. For example, the second wavelength value λ2 can correspond to the upper end of the wavelength range of the light forming a transition to red light or infrared light in the color spectrum. For example, the wavelength of the second wavelength value λ2 is, for example, 780 nm or 800 nm.

[0051] Since the light having a wavelength exceeding the second wavelength value λ2 passes through the visual lens with substantially no blocking, for example, more than 70%, more than 80%, or even more than 90% of that light can be transmitted by the visual lens. Alternatively, since the visual lens can reflect the light having a wavelength exceeding the second wavelength value λ2, more than 70%, more than 80%, or even more than 90% of that light can be reflected.

[0052] FIG. 2 schematically shows an example of a first visual protection device 1 of the present invention in a front view. The visual protection device 1 is represented as glasses illustratively including two spectacle lenses 2 and 3, and the glasses further have a spectacle lens holding portion 4 for fixing the spectacle lenses 2 and 3 so that they cannot be lost. For example, the spectacle lenses 2 and 3 are fixed to the spectacle lens holding portion 4 in a shape-coupled, force-coupled, or material-coupled manner. Alternatively, the spectacle lenses 2 and 3 and the spectacle lens holding portion 4 can be integrally manufactured, that is, can be manufactured from a consistent same material, for example, the material of the visual lens.

[0053] Both spectacle lenses 2, 3 may each be formed at least partially or completely from a vision lens.

[0054] The vision lens can be formed as a cylinder or sphere as a whole. Alternatively, the vision lens can also have a plurality of segments, and these segments can be arranged adjacent to each other or spaced apart from each other, and the selected segments or all of the segments can be formed into a cylinder or sphere.

[0055] Figure 3 schematically shows another embodiment of the vision protection device 1 of the present invention in a perspective view. The same reference numerals are used for elements corresponding to the elements of the foregoing embodiments in form or function. For the sake of brevity, only the differences from the foregoing embodiments will be described below.

[0056] The vision protection device 1 in the embodiment of Figure 3 is also configured as a spectacle, particularly as a protective spectacle, by way of example. The protective spectacle has a single spectacle lens 5, and this spectacle lens 5 is dimensioned such that the wearer of this vision protection device 1 can see through this spectacle lens 5 with both eyes simultaneously. For example, the spectacle lens 5 is fixed to the spectacle lens holder 4 in a shape-coupled, force-coupled or material-coupled manner. Alternatively, as illustrated in Figure 3, the spectacle lens 5 and the spectacle lens holder 4 can be integrally, that is, consistently, manufactured from the same material, for example, from the material of the vision lens, and can be injection molded, for example.

[0057] The spectacle lens 5 can be composed of at least partially or completely from a vision lens.

[0058] The vision lens can be formed as a cylinder or sphere as a whole. Alternatively, the vision lens can also have a plurality of segments, and these segments can be arranged adjacent to each other or spaced apart from each other, and the selected segments or all of the segments can be formed into a cylinder or sphere.

[0059] FIG. 4 schematically shows in a front view another embodiment of the visual protection device 1 of the present invention. Elements corresponding to the elements of the foregoing embodiment in form or function are denoted by the same reference numerals. For the sake of brevity, only differences from the foregoing embodiment will be described below.

[0060] The visual protection device 1 of the embodiment shown in FIG. 4 is a face mask, and the face mask can be configured as a respiratory mask or an oxygen mask. The face mask has a visual shield 6, and the visual shield 6 can be constituted at least partially or entirely of a visual lens. For example, when the visual protection device 1 is worn, the filter characteristics of the visual lens of the present invention can be imparted only to the portion of the visual shield 6 through which the face mask wearer looks through the visual shield 6. Alternatively, the filter characteristics of the visual lens of the present invention can be imparted to the entire surface of the visual shield 6.

[0061] The visual protection device 1 in the embodiment of FIG. 4 is further provided with a holding portion 7 for the visual shield 6, and this visual shield holding portion 7 can be configured such that gas impinges close to a person's face.

[0062] The visual lens or the visual shield 6 can be configured in a cylindrical shape as a whole. The visual lens or the visual shield 6 may have a longitudinal axis, and the visual lens or the visual shield 6 is curved in a cylindrical shape about this longitudinal axis. For example, the longitudinal axis of the cylindrically curved visual lens or the cylindrically curved visual shield 6 can be arranged to extend essentially through the visual plane of the wearer of the visual protection device 1. Both eyes of the wearer may be located within the visual plane. When a person wears the visual protection device 1, the longitudinal axis can be aligned vertically. For example, the longitudinal axis can be extended parallel to the bridge of the nose of the wearer of the visual protection device 1. The longitudinal axis can be extended parallel to or within the symmetry plane of the visual protection device 1. The longitudinal axis can be extended substantially perpendicular to the line-of-sight direction through which the wearer of the visual protection device 1 looks through the visual protection device 1.

[0063] Alternatively, the visual lens or visual shield 6 can also have a plurality of segments, which can be arranged adjacent to each other or spaced apart from each other, and the selected segments or all of the segments can be formed into a cylindrical or spherical shape.

[0064] Another embodiment of the visual protection device 1 of the present invention is schematically shown in a perspective view in FIG. 5. Elements corresponding to the elements of the foregoing embodiments in form or function are denoted by the same reference numerals. For the sake of brevity, only the differences from the foregoing embodiments will be described below.

[0065] FIG. 5 also shows the visual protection device 1 as a face mask including the visual shield 6. However, the face mask 5 of this embodiment is configured without using the visual shield holding portion 7. Rather, the visual protection device 1 of the embodiment of FIG. 5 has a visual shield 6 and a visual shield holder 8, and the visual shield 6 is attached to the visual shield holder 8. The visual shield holder 8 can also be configured to be easily and, if possible, repeatedly detachably attached to the helmet, or, if possible, to the stretchable headband 9. The visual protection device 1 of the embodiment of FIG. 5 can be called a face shield.

[0066] The visual lens or visual shield 6 can be configured as a cylinder as a whole. The visual lens or visual shield 6 can have a longitudinal axis, and the visual lens or visual shield 6 can be curved cylindrically about the longitudinal axis. For example, the longitudinal axis of the cylindrically curved visual lens or the cylindrically curved visual shield 6 can be arranged to extend essentially through the visual plane of the wearer of the visual protection device 1. Both eyes of the wearer can be located within the visual plane. When a person wears the visual protection device 1, the longitudinal axis can be oriented vertically. For example, the longitudinal axis can extend parallel to the bridge of the nose of the wearer of the visual protection device 1. The longitudinal axis can extend parallel to the plane of symmetry of the visual protection device 1 or within the plane of symmetry of the visual protection device 1. The longitudinal axis can extend substantially perpendicular to the line of sight direction through which the wearer of the visual protection device 1 views through the visual protection device 1.

[0067] Figures 6 and 7 show the transmission curves of a preferred embodiment of vision protection glasses having a cut-off filter. In Figure 7, the angular dependence of the cut-off filter in the range from 0° (normal incidence of light) to 25° (deviation from normal) of light incidence is shown. The transmittance T of the vision lens from 0.0 to 1.0 with respect to the wavelength λ of light is shown. Figure 7 shows that in the desired range from 640 nm to 780 nm, almost complete blocking of the vision lens is performed, which is not affected by the change in the angle of incidence. The symbols A to F represent curves deviating from the normal by 5° each from 0° to 25°. Note that although this application relates to the invention described in the claims, it includes the following as other aspects. 1. In a visual protection device (1) for a person, particularly for a dispatched personnel, having at least one visual lens, the visual lens is configured to reflect and / or absorb light having a wavelength exceeding 640 nm, exceeding 600 nm, exceeding 560 nm, or exceeding 550 nm more strongly than light in a wavelength range of a shorter wavelength, and the wavelength range of the shorter wavelength extends over wavelengths up to 640 nm, 600 nm, 560 nm, or 550 nm, and the visual protection device (1) is characterized in this. 2. The visual protection device (1) according to the above item 1, wherein the visual lens is configured to substantially completely reflect and / or absorb red light. 3. The visual protection device (1) according to the above item 1 or 2, wherein the visual lens is configured to reflect and / or absorb light having a wavelength up to 780 nm or 800 nm more strongly than light of at least one other color. 4. The visual protection device (1) according to any one of the above items 1 to 3, wherein the visual protection device (1) is a face mask, and at least a part of a visual shield (6) of the face mask is constituted by the visual lens. 5. The visual protection device (1) according to any one of the above items 1 to 3, wherein the visual protection device is a protective glasses having at least one spectacle lens (2, 3, 5), and the spectacle lens (2, 3, 5) is at least partially constituted by the visual lens. 6. The visual protection device (1) according to item 5 above, wherein the protective glasses have a spectacle lens holding portion (4), and at least one of the spectacle lenses (2, 3, 5) and the spectacle lens holding portion (4) are integrally formed, and only at least one of the spectacle lenses (2, 3, 5) or at least one of the spectacle lenses (2, 3, 5) and the spectacle lens holding portion (4) are configured as a visual lens. 7. The visual protection device (1) according to any one of the above items 1 to 6, wherein the visual lens has a reflection coating and / or an absorption coating for reflecting and / or absorbing light. 8. The visual protection device (1) according to any one of the above items 1 to 6, wherein the visual lens is formed in a cylindrical or spherical shape at least for each segment or entirely.

Explanation of Symbols

[0068] 1 Vision protection device 2, 3, 5 Glasses lens 4 Glasses lens holder 6 Vision shield 7 Vision shield holder 8 Vision shield holder 9 Headband S Line of sight T Transmittance λ1 First wavelength value λ2 Second wavelength value A Curve for 0° B Curve for 5° C Curve for 10° D Curve for 15° E Curve for 20° F Curve for 25°

Claims

1. In the method of using a visual protection device (1) by a person or a person in active service, the visual protection device (1) is a visual protection device (1) for a person or a person in active service equipped with at least one visual lens, the visual lens completely reflects and / or absorbs light in a wavelength range where the lower wavelength value that causes mental trauma to a person or a mobilized person is 640 nm, 600 nm, 560 nm or 550 nm, and the upper wavelength value is 780 nm or 800 nm, so that the person or the person in active service cannot recognize the light, and the visual lens is configured to transmit more than 70% of the light with a wavelength below the wavelength range and above the wavelength range, in use, a person or a person in active service faces an injured person and / or a person with a severed body, which is characterized in that it is a method of using a visual protection device (1) by a person or a person in active service.

2. The visual protection device (1) is a face mask, and at least a part of the visual shield (6) of the face mask is constituted by the visual lens, which is characterized in that it is a method of using the visual protection device (1) according to Claim 1.

3. The visual protection device is a protective glasses having at least one spectacle lens (2, 3, 5), and the spectacle lens (2, 3, 5) is at least partially constituted by a visual lens, which is characterized in that it is a method of using the visual protection device (1) according to Claim 1.

4. The protective glasses have a spectacle lens holding part (4), at least one of the spectacle lenses (2, 3, 5) and the spectacle lens holding part (4) are integrally formed, and only at least one of the spectacle lenses (2, 3, 5) or at least one of the spectacle lenses (2, 3, 5) and the spectacle lens holding part (4) are configured as visual lenses, which is characterized in that it is a method of using the visual protection device (1) according to Claim 3.

5. The visual lens has a reflective coating and / or an absorption coating for reflecting and / or absorbing light, which is characterized in that it is a method of using the visual protection device (1) according to Claim 1.

6. The visual lens is formed in a partial cylindrical surface shape or a partial spherical surface shape at least for each segment or as a whole, which is characterized in that it is a method of using the visual protection device (1) according to Claim 1.

Images