DE9314811U1 - Radiation protection glasses - Google Patents

Description

Description: 93056 G

Radiation protection goggles

The invention relates to radiation protection goggles, in particular for protection against laser radiation. They consist of at least one protective filter and a spectacle frame.

Such safety goggles must be worn when working with lasers from hazard class 3b onwards in order to protect the eyes from harmful radiation. It is important that the safety goggles not only reliably protect the user's eyes from radiation that comes primarily from the front, but also that radiation coming from other directions is kept away from the eyes.

Safety goggles such as those known from DE-AS 20 62 829 are used for this purpose. These safety goggles have a side shield connected to the earpiece in the temple area, which rests on the corresponding eye rim of the safety goggles when opened. Safety goggles of this type do not protect the areas above and below the eye rim and there is a risk that the side shield does not sit snugly on the corresponding eye rim of the safety goggles, thus creating a gap in the critical area.

Laser safety goggles are known from DE-GM 85 32 493, in which, in addition to side shields on the temple side, shields are also provided in the upper area of the goggles, which cover the area up to the forehead of the wearer. Here, too, there is a risk of a gap forming between the side shield and the eye rim of the goggles; in addition, areas at the lower edge of the goggles are not shielded.

These well-known safety goggles are based on the usual so-called safety goggles, on whose frame the

necessary visors must be attached. This makes these safety glasses relatively expensive.

The L-04 laser safety glasses from Laser-Vision GmbH are also available on the market. The safety glasses extend temporally to the temple area and only there have hinges for pivoting the earpieces. These safety glasses have transparent side panels with protective filters and panels on the upper edge of the safety glasses. Since all panels are attached separately to the safety glasses, these safety glasses are also relatively expensive.

So-called basket frames for laser safety goggles are also known. These safety goggles are similar in structure to diving goggles, e.g. DE-PS 36 16 253. The part of the goggles that surrounds the eye frames is made of soft, elastic material and completely covers the area between the protective filters and the user's face. Such basket frames are usually used for visitors or for people who wear glasses, as they can be worn over the normal prescription frame. The basket frames mentioned do not have ear hooks; they are held on the wearer's head with an elastic band.

It is the object of the present invention to create radiation protection glasses that can be quickly exchanged for different wearers.

This object is achieved by protective goggles for radiation protection goggles which are designed according to the characterizing features of claim 1.

The invention makes it easy to individually adjust radiation protection goggles with a frame through an inner insert to a protective goggle wearer without compromising on wearing comfort.

is therefore restricted. The inner insert covers the inside of the frame almost completely.

For this purpose, the inner insert is advantageously designed to protrude from the frame towards the face of the wearer.

It is advantageous if the inner insert is removable so that the glasses can still be used if the wearer changes.

The inner insert is advantageously made of a soft material, at least in the area facing the wearer's face, in order to increase wearing comfort.

For easier handling, the inner insert should be made in one piece.

The protective filters can be attached to the front surface of the frame or to the inner insert. If the protective filters are attached to the inner insert, the radiation protection goggles can easily be used for another purpose after replacing the inner insert with other protective filters.

If, however, the protective filters are integrated into the front surface of the frame, the inner insert can contain the wearer's optical corrective lenses, so that separate corrective glasses are unnecessary.

Advantageously, the inner insert completely encloses the edge of the frame facing the wearer’s face in order to ensure all-round comfort.

To ensure ventilation, the frame has ventilation slots, with the inner insert in the area of the ventilation slots being designed to be permeable to air.

For secure, non-slip attachment of the inner insert to the socket, the latter advantageously has a circumferential tongue which engages in a correspondingly shaped formation on the inner insert.

It is advantageous if the material of the inner insert is also radiation-absorbing, so that no reflections inside the safety goggles can reach the wearer's eyes.

If the nose pad is formed on the inner insert, this can also be individually adjusted to the respective wearer.

The invention is explained in more detail below by way of example using the figures of laser safety goggles, in which further essential features as well as explanations and possible embodiments of the inventive concept are described for a better understanding.

Showing:

Figure 1 is a top view of the disassembled laser safety goggles;

Figure 2 is a plan view of the assembled laser safety goggles; and

Figure 3 shows a detailed view of the attachment of the inner insert to the socket.

The laser safety goggles (1) shown in Figures 1 and 2 essentially consist of two parts, the frame (la) and the inner insert (4).

The frame (la) consists of two half parts connected to one another and carries the protective filters (2 and 3) in two separate openings that are as large as possible in order to ensure the largest possible, natural field of vision for the wearer. The material of the frame (la) consists either of light metal (e.g. aluminum) or is made of e.g. graphite-coated plastic; glass fiber reinforced or carbon fiber reinforced plastics are also possible. The frame (la) extends temporally on both sides into the temple area of the wearer and forms side panels there, which can also be referred to as temple plates (9). The frame (la) has an upper and a lower protective panel (6, I) ₁ which at least essentially cover the area between the protective filters (2, 3) and the face of the wearer.

As can be seen from the figures, the frame (la) forms a cross-section of a shell that is open towards the wearer's face, into the front surface of which the protective filters (2, 3) are inserted. The transition between the upper protective shield (6) and the temple plate (9) is strongly rounded. The front area of the frame (la), on the other hand, has rounded edges towards the upper and lower protective shields (6, 7) and the temple plates (9), which are intended to enable the use of the largest possible protective filters (2, 3) in the protective glasses.

A holder for a head attachment is attached to each temple plate (9). In the case of the safety glasses (1) in Figures 1 and 2, this consists of an opening (9a) arranged on the side to which a headband (12) is attached. This headband (12) is elastic and consists of a rubber-containing material. The length of the headband (12) can be changed to individually adapt it to the head circumference of the glasses wearer.

Ventilation slots (10) are integrated into the temple plates (9). These ventilation slots (10) enable good ventilation in the area between the laser safety glasses (1) and the face of the wearer and prevent heat build-up under the laser safety glasses (1). The protective filters (2, 3) are convexly curved on the object side in order to reduce the reflected radiation density through divergent reflection. The frame (la) in the area of the protective filters (2, 3) therefore expediently also has a corresponding curvature. The sensible design of the ventilation slots (10) is described in more detail in EP-PS 0 419 854.

The inner insert (4) is made of a soft material, a skin-friendly elastomer, which is able to absorb laser radiation that hits it. This is useful because the material of the inner insert (4) is intended to prevent the laser radiation that hits it from getting into the interior of the radiation protection goggles (1).

This inner insert (4) is shaped to match the inner shape of the frame (la) and can be easily inserted into the frame (la) and easily removed from the frame (la). In the area of the protective filters (2, 3) of the frame (la), the inner insert (4) has two front viewing openings (4c), as well as two openings (10a) in the area of the ventilation slots (10) of the frame (la). The viewing openings (4c) allow free, unobstructed vision through the protective filters (2, 3), as their shape and size are adapted to the protective filters (2, 3), and the two openings (10a) in the area of the ventilation slots (10) ensure good ventilation of the space between the wearer's face and the laser safety glasses (1).

The inner insert (4) completely lines the inside of the socket (la) and thus also creates thermal insulation towards the outside.

The replaceable inner insert (4) has two air chambers (4d) integrated in the nose area, which serve as a soft nose pad. These air chambers (4d) are designed according to the known state of the art.

On the face-side edge (13) of the frame (la), on its outward-facing surface (1b), a tongue (14) is attached, which serves to securely attach the inner insert (4). The inner insert has a groove (4a, shown in Figure 3) which engages over the correspondingly designed tongue (14) of the frame (la).

The part (4b) of the inner insert (4) that protrudes beyond the edge (13) of the frame (la) is large enough to ensure good wearing comfort, and is elastic enough so that the inner insert (4) easily and snugly adapts to the shape of the face of the wearer of the protective goggles. The protruding part (4b) of the inner insert (4) completely encloses the edge (13) of the frame (la), thus ensuring that the radiation protection goggles (1) are in close contact with the head of the wearer on all sides, so that the frame (la) itself has no direct contact with the wearer's skin.

However, the protection of the invention should not only extend to the embodiment shown here. As an alternative to the radiation protection goggles shown in Figures 1-3, the protective filters can also be attached to the inner insert. In this case, either flat lenses (this means all lens inserts with the lowest possible optical effect) or corrective lenses can be attached to the frame. In addition, more than just one inner insert can be inserted into the frame, e.g. one inner insert for protective filters and another for corrective lenses, whereby the frame does not then have to contain any lenses.

Of course, the headband can also be replaced by ear hooks using the latest technology.

Claims (11)

P^ienii claims: 1. Radiation protection goggles (1), in particular for protection against laser radiation, with at least one protective filter (2, 3, 4a, 4b) and a frame (la), characterized in that at least one inner insert (4) corresponding to the inner shape of the frame (la) is inserted into the frame (la), which inner insert replicates the inner shape of the frame (la) and at least almost completely lines it. 2. Radiation protection goggles according to claim 1, characterized in that the inner insert (4) is designed to protrude from the frame (la) towards the face of the wearer. 3. Radiation protection goggles according to one of claims 1 to 2, characterized in that the inner insert (4) is removable from the frame (la). 4. Radiation protection goggles according to claim 2, characterized in that the inner insert (4), at least in the area facing the face of the wearer, is made of a soft material. 5. Radiation protection goggles according to one of claims 1 to 4, characterized in that the inner insert (4) is formed in one piece. 6. Radiation protection goggles according to one of claims 1 to 5, characterized in that lenses or filters (4a, 4b) are inserted into the front surface of the inner insert (4). 7. Radiation protection goggles according to one of claims 1 to 6, characterized in that the inner insert (4) The edge of the frame (la) is designed to enclose the face of the wearer. 8. Radiation protection goggles according to one of claims 1 to 7, characterized in that ventilation slots (10) are provided in the frame (la) and that the inner insert (4) is designed to be permeable to air in the region of the ventilation slots (10). 9. Radiation protection goggles according to one of claims 1 to 8, characterized in that a circumferential tongue (14) is attached to the frame (la), which engages in a correspondingly shaped formation (4a) on the inner insert (4). 10. Radiation protection goggles according to one of claims 1 to 9, characterized in that the material of the inner insert (4) is heat-insulating and radiation-absorbing. 11. Radiation protection goggles according to one of claims 1 to 10, characterized in that the nose pad (15) is formed on the inner insert (4).