JPH08501227A - Method and apparatus for exposing the human eye with a controlled radiation pattern - Google Patents

Abstract

(57) [Summary] It is mainly used for photo-thermal-keratoplasty treatment, and is for correcting myopia, hyperopia, or astigmatism of the human eye, and expands and contracts collagen near the cornea. Controlled by controlled infrared heating, the one optical system produces a controllable infrared radiation pattern. A multi-sided prism, a movable prism forming the first element, wherein infrared heating radiation and visible target illumination are directed onto said prism from a multimode optical fiber. The optical element provides the attending physician with a clear image of the eye procedure. The infrared pattern is electrically controlled.

Description

Description: Method and apparatus for exposing the human eye with a controlled radiation pattern. Background of the Invention The present invention relates generally to various methods for treating focused electromagnetic radiation to the human eye, and more particularly, one or more tuned and focused corneas on the cornea. Associated with an improved device for electromagnetic irradiation. Although there are many specialized therapeutic procedures that require highly controlled electromagnetic radiation to be directed to one eye, the corneal transplant procedure now has the ability to correct myopia, hyperopia, and / or astigmatism. Has received a lot of attention from. As one surgical procedure, a beam of radiation is used to cut a limited portion of the cornea by cutting tissue in its path. This particular application makes a radial corneal incision without the use of a knife to make a radial cut in the cornea. Another way to avoid cutting the cornea is light beam electromagnetic irradiation, which sends a spectrum of the infrared beam into the eye, causing the collagen fibers to contract within the cornea, resulting in a permanent corrective action during the corneal curvature. Make a big change. This latter technique is often referred to as photo-thermal-keratoplasty, which is U.S. Pat. No. 4,976,709, issued Dec. 11, 1990 by Dr. Bruce Jay. sand. It has been the subject of what was published in. Collagen contraction technology promises to safely and permanently alter the optical characteristics of the human cornea, which physically ablates a portion of the cornea. It is far superior to the ones. For ophthalmologists and their doctors, a certain amount of correct patterns that can be controlled by doctors with high accuracy in order to effectively perform photo-thermal-keratoplasty procedures on a large number of patients with high accuracy and effect. It is highly desirable to provide a device that can direct a quantity of infrared radiation to the patient's eye. The basis for such a device is published in a European patent, number 402,250, and is shown in the Parel et al. Patent published December 12, 1990. The device shown therein is an array of controllable arcs, radial lines, or spots capable of providing infrared radiation across the cornea of the patient's eye. The Parer et al. System configuration has been described as effective for some surgical or non-surgical procedures. The main object of the invention is to improve the device disclosed by Parel et al. Yet another object of the invention is to provide such an apparatus which is computer controllable. Another object of the present invention is to provide a controllable radiation pattern to irradiate the cornea, which pattern is effectively manufactured, utilized, accurate and effective. Yet another object of the present invention is to provide an improved method and system for projecting a controlled pattern of infrared radiation spots onto the cornea of the eye to perform a photo-thermal-keratoplasty procedure. Is. Summary of the Invention Thus, briefly and generally, many individual improvements were made in the context of systems such as parrels, each of which contributes to reach the objectives mentioned above. , And each individually and in a mutually related way, contribute to the achievement of the aforementioned objectives. One feature of the invention involves the repositioning of the optical system shown in the prior art as it relates to the generation of an infrared pattern that illuminates the patient's cornea to be treated. A beam of divergent infrared radiation from a small, substantially point source is projected onto an optical element that transforms the beam into a desired pattern. The pattern can be controlled by rotating or longitudinally moving the optical element along the optical axis of the diverging beam. A mask is arranged to contribute to controlling the intensity distribution of the beam along its pattern before or immediately after the diverging beam's optical elements. The beam to be controlled is collimated and then focused for placement on the surface of the patient's eye. A dichroic mirror is placed in the collimated portion of the beam, allowing the physician to view the surface of the patient's eye along the same path as the light beam being treated. This arrangement has many advantages. This is mechanically simpler and the optics can be removed to provide the attending physician with more working space around the patient. The image the doctor sees through the dichroic mirror is not degraded as is often the case with such devices because the mirror is positioned where the beams were collimated, causing the beam to diverge or converge. This is because it is not placed around the door. This arrangement also allows the use of optical elements that form a positive convex radiation pattern, and allows the radiation beam to strike the surface of the eye at substantially right angles. Allowing a substantially orthogonal beam incidence on the cornea of the eye gives good results in any procedure, especially for photo-thermal-keratoplasty procedures. Negative concave optical elements may be placed in various places in the system, and this allows the radiation beam to be incident at approximately right angles to the desired eye, but that is possible. However, it is extremely difficult to manufacture with the required accuracy. According to the invention, in a device specially designed for photo-thermal-keratoplasty treatment, an irradiation beam diverging a positive polyhedral prism element (polyprism) is provided in a number of separated beams, Beam is split into those corresponding to each face of the prism. Each of the beams is directionally focused onto the cornea of the patient's eye as a spot-sized spot. Since infrared treatment rays are not visible, it is desirable for the physician to illuminate the light from a visible light source coaxially with the treatment light to adjust the position of the pattern on the patient's cornea. According to yet another feature of the invention, different light sources for infrared and visible illumination are coupled and transmitted by a multimode optical fiber to illuminate the remaining optics of the device. The combined infrared and visible light beam then emerges from the optical fiber as diverging light as described above. This configuration has at least four distinct advantages. First of all, the light from the separately provided infrared and visible light sources are precisely coaxially aligned with each other, which is difficult without this method. This alignment is maintained even if there is a discrepancy due to mechanical vibration or the like to the individual optical elements in the system. Second, the multimode optical fiber has a very uniform intensity distribution throughout as a result of each light beam being agitated and diffused as it passes through it. A third advantage resulting from the use of optical fibers is to offer the possibility of how the diameter of the core can be controlled to be small for the individual spots focused on the individual eyes. A fourth advantage is that the optical fiber electrically isolates the part of the optical system that is used in close proximity to the patient and the physician who directly uses it from the part of the light source that normally uses high voltage. Although not necessary for the procedures described herein, individual lasers are typically used that generate infrared and visible light. In accordance with yet another aspect of the invention, a controllable structure that is poly-prism optics that divides what has passed through the mask into individual spots separated by the patient's eye. Masks are provided in collaboration with the ones. An individually adjustable shutter mechanism is provided for each portion of the diffused light that strikes the separated surface of the polyprism. Each of these shutters has an independently controllable rest open position, so that the relative intensity of each light distribution that has passed through the polyprism open, and when the shutter is open, each spot directed to the patient's eye. Controllable. Generally speaking, individual light beams are used to balance out inhomogeneities such as dust and other optical elements, but intentionally each beam and these beams and their It is also used to intentionally change the intensity of the focused spot. Each shutter is responsive to each manual or electrical bias in a position forced to fully close or open. According to yet another aspect of the invention, a slit lamp biomicroscope is positioned between the device and the patient's eye for viewing by the attending physician as if only the biomicroscope was used inside the patient's eye. You can This combination allows the attending physician to see the formation of a clear image in the patient's eye via the dichroic mirror of the present invention. This saves the attending physician from having to first view the patient with a different slit lamp biomicroscope and then place the treatment system in front of the patient. According to yet another feature of the present invention, by providing sufficient chromatic aberration correction to the parallel lens system system, it has sufficient correction capability so that it is further collimated by another lens system to produce light. There is no need to provide a system that is aimed at the patient. Because therapeutic infrared radiation and visible radiation are well separated in wavelength, wavelength-dependent optical systems treat them differently. Thus, a higher than normal level of correction is required in this system, but the higher level of correction is provided by only one optical element, the other is in the normal visible spectrum and by the normal lens system. The color correction provided. Further additional objects, advantages and features etc. of the present invention will be made clear by the description made subsequently with reference to the preferred embodiments, which description will be made with reference to the accompanying drawings. Brief description of the drawings 1 is a diagram showing an overall system of a processing device embodying various features of the present invention; FIG. 2 is a diagram illustrating a radiation pattern generated by the system of FIG. 1; FIG. 3 is an optical diagram of the device of FIG. 4A and 4B are plan and side views of a polyprism used as one element of the optical system of FIG. 3; FIG. 5 is an adjustable system used in the optical system of FIG. FIG. 6 is a plan view showing the main elements of the shutter mask; FIG. 6 is a more detailed illustration of the mask shown in FIG. 5 showing the preferred operating conditions; and FIG. 7 is the preferred embodiment used in the system of FIG. The achromatic lens is shown. Description of the preferred embodiment Referring to FIG. 1, an overall system embodying the various features of the present invention will first be described. An optical treatment device 11 is used to direct a light beam 13 with a controlled radiation pattern onto the cornea of the eye 15 of the patient to be treated. The attending ophthalmologist or other doctor is looking into the eyepiece 19 of the binoculars with the other eye observing the eye 15 of the patient, which is placed in the path corresponding to the beam 13, and the symbol 17 Indicated by. The main optics of the device 11 are provided in a housing part 21 (substantially horizontal part) and a part 23 (substantially vertical part) arranged so as to intersect with it. The light input to the device 21 is provided by a single multimode optical fiber 25 connected to an optical connector 27 located near the focal point of the device. The device 11 is attached to a carriage 31 via a post 29, which is movably mounted back and forth on a fixed platform 33 and is moved in response to an operation of a manual handle 35. A conventional type for restraining the patient's head is provided, which is a post 37 fixed to the platform 33, and the usual restraining means is a chin rest 39, to which the patient A column 41 is provided which bears and supports the weight of the head and which further defines the forehead against which the patient's forehead is pressed. The patient's eye is thus held in a rest position, while the optical device 11 is moved back and forth horizontally with respect to the patient's eye. Also, the patient remains in an upright position throughout the procedure, because the cornea gradually takes on another shape as the patient lies down. The ideal correction should be made in the patient's normal upright position. The electromagnetic radiation source 43 used in this device 11 comprises two lasers 45, 47 in this example. Laser 45 produces radiation for infrared treatment, while laser 47 produces visible light 51. The mirror 53 and the dichroic mirror 55 combine both laser optical beams and are directed via a suitable focusing lens 57 to an optical connector 59 to which the optical fiber 25 is connected. Thus, the output of each laser 45 and 47 is directed to the optical fiber 25 at the connector 27 at the other end. Laser 45 includes one suitable for photo-thermal-keratoplasty treatment having a wavelength of substantially 1.8 to 2.55 microns. As an example of the material of this solid-state laser, there is an yttrium-aluminum-garnet host which uses thallium, formum and chromem (THC: YAG) as the activator. The visible laser 47 is any convenient visible light beam, such as a green 543 nanometer line helium neon laser. The third major part of the system shown in FIG. 1 is a computer system 61, which controls the light source 43 via a control line 63 and then the optical device 11 via a control line 65. The main control is that for the light source 43 it is controlled independently during the treatment of the laser 45 and the visible light 47 is flashed. The additional treatment laser 45 is typically controlled as a pulse during the treatment. The primary control for the device 11 is to physically position the various optical elements and shutters. The computer system 61 is connected to an input / output device or devices to interface information with a doctor. Such devices are usually electric push button switches for control, CRT monitors or status lights. An additional device provided on the carriage 31 is a system 69 for illuminating the eyes of the narrow slit, standard ones being available. Such a system has a prism 71 at the apex of the pillar, through which the output beam 13 is directed to the output light from the device 11. When the illumination light source 69 is activated, it emits a slit of light to the patient's eye 15, which allows the attending physician to observe the surface or the interior of the patient's eye through the binoculars 19 of the device 11. By providing the slit lamp as part of the device 11, the attending physician can treat the patient with a single machine, thereby eliminating the need to reposition the patient in front of other devices. . Referring to FIG. 2, the emission pattern of the output light 13 in the device 11 is shown. The circle 71 shows the range in which the radiation beam 13 is focused, the surface of which is aligned with the patient's cornea. In this example, the irradiation beam 13 is shown as eight points on the surface 73 to 80, with a similar spacing provided at a radius r from the center of the surface 71, which coincides with the center of the patient's cornea. . Treatment with ultraviolet light and visible light is performed by focusing the device 11 on the same spots 73-80. Thus, prior to directing the infrared light to the patient's eye for treatment, the attending physician should, via the binoculars 19, be at the precise location of the patient's eye 15 toward which therapeutic radiation should be delivered. You can observe it. Referring to FIG. 3, the major optical elements of device 11 and their operation are described. A divergent beam of radiation 83 emerges from the connector 27 via the end of the optical fiber 25. The degree of divergence is controlled by the aperture index of a special optical fiber. A single core multimode optical fiber is chosen whose core diameter is larger than the wavelength of the emitted light passing through it. This ensures that the light intensity is substantially mixed into the emitted light beam. However, the diameter of the core is defined by the diameter of the smallest spots 73 to 80 (FIG. 2), which is adjusted by the device 11 not to be too large. A mask and shutter structure 85 (described in detail below with reference to FIGS. 5 and 6) and a polyprism 87 (described in detail with reference to FIGS. 4A and 4B) are located in the path of the diffused light beam 87. Has been made. In this embodiment, the poly prism 87 has eight separate surfaces, each originating from the diverging beam 83, and focused on one of the eight spots 73 to 80 described below. A suitably provided motor rotates poly prism 87 in response to a control signal on line 89 which is part of control line 65 (FIG. 1) from control computer system 61 and its longitudinal direction along radiation beam 83. Is controlled. Rotation of the Polyprism about the optical axis rotates spots 73-80 (FIG. 2). The shutter structure 85 is rotated along the poly prism 87, but it is not moved axially. Movement of the polyprism along the optical axis causes a change in radius "r". The preferred shutter structure 85 is provided separately for each cross section of the light beam impinging on the separated surface of the poly prism 87. Each of these shutters is independently controlled between its open and closed positions by a signal from control line 91 which is part of control line 65 (FIG. 1) from the computer system. The structure of the shutter structure 85 will be described below. After the diverging light 83 has passed through the poly prism 87, the resulting eight separated beams 93 are collimated by suitable optics, shown as one spherical lens element 95. . The collimated beam 97 is made up of eight individual beams, which are reflected by the dichroic mirror 99 and collected and collimated 101 are converged by what is shown as a spherical lens 103. To be done. The lens 103 focuses the beam in the form of an output beam 13, into which individual spots 73 to 80 (including FIG. 2). A dichroic mirror 99 located between lenses 95 and 103 also passes visible light reflected from the patient's eye in the form of beam 107. This beam 107 is used by the attending physician to observe the patient's eyes with binoculars 19 (FIG. 1). Mirror element 99 is adjusted by a small amount by the two motors in the X and Y directions by a signal from control 105 which is part of control line 65 (FIG. 1) from computer 61. This adjustment causes the overall pattern dot 73 to 80 pattern to be aligned with the proper position on the patient's eye. The optical device shown in FIG. 3 can provide many of the features described above. By placing the dichroic mirror 99 in the radiation path of the collimated portions 97 and 101, its presence does not severely distort the visible image of the light beam 107 that is necessary for the attending physician to observe. No procedure is required to minimize the distortion caused by such elements being placed in a diverging or converging beam system. The physician can obtain a clear image via the element 99 and does not limit the choice to see a clear image. It should be noted that the polyprisms are placed in the diffused light 83 rather than in the convergent light 13 so that there is more space between the device 11 and the patient's eye 15 which is more desirable for the desired treatment. The structure of poly prism 87 is shown in the enlarged views of FIGS. 4A and 4B. FIG. 4A is a plan view of poly-prism 87 as viewed from the side forming shutter assembly 85 of FIG. FIG. 4B is an enlarged side view of what is shown in FIG. This special poly prism has eight adjacent flat surfaces 111 to 118, each of which is eight beams separated divergent light 83 (Fig. 3), each spot 73 to 80 (Fig. Separate into those corresponding to 2). Of course, different numbers of such planes other than 8 can be used to form different spots on the surface of the patient's eye. Moreover, such a surface need not be planar, and need not be, if control of the shape of the characteristic spot is desired. The structure of the polyprism 87 is also symmetrical, and as a result the spots 73 to 80 are evenly arranged in a circle, but if these spaces need to be asymmetric, for example a circle It can also be provided asymmetrically in cases where it is desired to bring a non-symmetrical or non-symmetrical pattern of radiation to the patient's eye. In most applications of the system of FIG. 1, particularly in the photothermal keratoplasty procedure, the spots 73 to 80 shown in each FIG. 2 are perpendicular to the patient's eye, substantially along its plane. It is preferable that light is incident. This can be achieved by providing a positive convex poly prism 87. If this polyprism is provided at the exit of the device 11 at the position of the converging beam 13, the same individual beam normal incidence can be achieved if the polyprism is a negative or concave lens. However, this is a serious drawback. This is because it is extremely difficult to precisely manufacture a multifaceted prism inward. It is much easier to make the positive convex poly prism 87. Placing the polyprism in the diverging optical path 83 of FIG. 3 has the advantage that it is a positive convex lens but still allows for the desired normal patient eye incidence. 5 is a plan view of the assembly of the preferred shutter assembly 85 (FIG. 3), generally to illustrate its operation, but a more detailed mechanical construction is shown in a partially broken view. 6 is shown. The hard opaque mask 121 is the central element. This mask has eight wedge-shaped openings 122 to 129. These openings are arranged in a uniform intensity section of the diverging beam section shown in FIG. Each opening 122-129 is associated with one of the faces 111-118 of the polyprism. In fact, the wedge-shaped openings 122 to 129 are chosen to correspond to the surface of the polyprism (FIG. 4A). The amount of divergent beam 83 passing through each aperture 122-129 is controlled by individually energized shutters 131-138. Each of these shutters is wedge-shaped at its innermost end and is provided so that it is associated with any one of the openings 122-129. Each of these shutters is in a position where its wedge-shaped tip is completely removed from its associated shutter, i.e., where shutter 135 is completely removed from aperture 126, and in one extreme case the shutter is completely removed. An example of blocking the associated aperture and blocking light passing therethrough is when the shutter 133 blocks the aperture 124. Other shutters block some of their corresponding apertures as shown in FIG. Thus, the intensity of beam 83 (FIG. 3), which is focused into each spot 73 to 80 (FIG. 2), can be controlled separately. It is normally used to equalize the intensity of spots 73 to 80, but if desired, other relationships may be chosen, such as those intensities depending on the shapes shown in FIGS. 5 and 6. it can. First, a more detailed description of the structure of the shutter mechanism 85 will be given with reference to FIG. The mask plate 121, which is shown in an enlarged form in FIG. 5, is a base housing member 141 and a cover member 143 which are sandwiched by corresponding circular tubes. The cover member 143 has a circular opening 145, which exposes the central portion of the mask 121. Similarly, the bottom housing member 141 is a circular opening 147 including a ring 148 exposing the mask 121 from its opposite side. Thus, the light beam can pass through the wedge-shaped openings 122 to 129 of the central housing openings 145 and 147. Each of the shutters 131 to 138 is operated by a similar mechanism, but cross sectional views of four such shutters are shown to varying degrees. Each shutter is supported by a block, the shutter 133 is supported by a block 149, and the shutter 134 is supported by a block 151. Block 153 is shown with the shutter removed, which allows it to move back and forth in a slot 155 provided radially in housing member 141. A spring 157 provided in a hole at one end of block 153 biases pin 159 against ring 148. This structure tends to push the block 153 and biases the shutter blades provided therein outwardly of the opening 147. Adjusting screw 161 is an adjustable stop member stopper that defines the position in which block 153, the shutter, is open. The screw 161 is screwed into the base member 141, and it is manually adjusted from the circumferential direction of the base member 141. Thus, each shutter 131-138 is defined by a respective stop screw, eg screw 161, at each opening 122-129 of the mask 121 when it is in the open position. Yet another mechanism is provided for moving each of the shutters 131-138 from the release position defined by these screws to their respective fully closed positions. The shutter 133 shown in FIG. 6 is in the closed position and the block 149 is pushed radially inward by the pin 163 against the force of the internal spring. A corresponding pin 165, which operates an adjacent shutter carrying block 151, which is retracted from that block 151 back to its associated screw stop against said internal spring. Is shown in a broken state. This pin is driven into two stable positions, pin 163 is one of which, its associated shutter is closed by biasing block 149 against ring 148, and pin 165 is two. In one of two stable positions. Here, the associated shutter is fully open and back to the associated stop screw. Associated with an adjacent shutter mechanism, which is best shown as pin 167, this pin is eccentrically supported by rotating element 169 and moves within a corresponding opening in cover plate 143. Similar to what is shown on shafts 173-176 shown corresponding to the four adjacent shutter block mechanisms below cover plate 143 shown in FIG. 6, rotating member 169 is its center of rotation. Has a shaft 171 extending upward through the cover plate 143. The rotating member 169 is in two stable states, 180 ° apart from each other. Leaf springs 177 are used to create the two stable states in devices where manual adjustment is required for individual release and shutter closure. The spring 177 is provided on the cover plate 143, and is provided on the opposite side of the spring 177 in parallel with the rotating member 169. The two stable positions are indicated by the positions of pins 163 and 165, respectively, as shown in FIG. 6 as two adjacent shutter mechanisms. In the motorized version of the machine, the spring 177 is no longer necessary because the motor typically provides two stable stop positions at the two rotational positions of the rotor 169. Each of these rotating members is individually controlled so that the shutters open and close individually. Each operation is preferably an electric motor, and motors 181-184 are provided for the four shutter mechanisms in FIG. The four additional motor sources are individually driven, and the other four shutter mechanisms are shown in various broken and disassembled states. The motor drive source is driven by a signal from line 91 which is part of control line 65 (FIG. 1) from the computer control system. Thus, a total of twelve motors control by system computer 61 which of the 73-80 spots shown in FIG. Refractive optical materials are provided in any optical system to compensate for their different effects on optical radiation in different wavelength regions. It is common in focusing systems to use additional optical elements, for example to ensure that all visible wavelength regions are similarly focused. In the case of this device, such a correction is made beyond the visible region, because the treatment laser 45 (FIG. 1) uses electromagnetic waves in the region outside such region, which is close to visible light. Is. In the optical system shown in FIG. 3, this procedural radiation and the visible laser light 47 must be corrected in the same way. In particular, the visible light and the therapeutic radiation must form coincident points 73 to 81 (FIG. 2) on the patient's eye so that the attending physician can precisely determine where the therapeutic light is directed. You can know. Visible radiation provides this image. Each refractive optical element 87, 95 and 103 is provided with such color correction, preferably by replacing the simple lens system 95 with a correction lens assembly 95 'shown in FIG. The focusing lens 103 has a normal chromatic aberration region in the visible light wavelength region, but it cannot correct a huge wavelength difference between the two light sources 45 and 47. This correction is completely performed by the lens assembly shown in FIG. In this example, the high diffuse (n = 1.8) lens 191 comprises two concave surfaces. The one convex lens element 193 and 195 is likewise chosen to have a low dispersion (n = 1.4). These lenses 193 and 195 are preferably magnesium fluoride (MgF). ₂ ) Made of material. Although various features have been described with respect to preferred embodiments of the invention, they are for the purpose of facilitating understanding of the invention and protection should be provided within the full scope of the appended claims. Please understand.

Claims (1)

[Claims]   1. A radiation exposure system suitable for the human eye:   An infrared electromagnetic radiation source,   A source of visible electromagnetic radiation,   A length of multimode optical fiber having first and second ends;   Receives radiation from each of the infrared and visible light sources and directs them to the optical fiber. It is coupled to one end so that the combined output of infrared and visible light is Means for receiving the radiation as it appears on the second end face of the bar,   A plurality of spatial light receiving overlapping illuminations from the second end of the optical fiber. Separated beams, which are substantially coaxial with infrared and visible light components. A first optical means including:   Second optical means, means for accepting for collimating the beam And, and   Third optical means for receiving the collimated light beams and substantially receiving the collimated light beams. So that the human eye matches the exposed surface by delivering it to a different focal plane Third optical means for Radiation exposure system suitable for human eyes.   2. In the system according to claim 1,   The collimated beam positioned in the paths of the second and third optical means is Beam to one side and direct it towards the third optical means while allowing visible light to pass through. Fourth optical means, and   By observing the light passing through the second and third optical means, the focus An optical viewer that allows observation of the surface, A radiation exposure system suitable for the human eye, which further includes:   3. The system according to claim 2, wherein   The focal plane is illuminated by slit light between the third means and the focal plane. The internal structure of the human eye placed by the focal plane Further including means for making visible by an optical viewer, Radiation exposure system suitable for human eyes.   4. The system according to claim 2, wherein In the first, second, and third optical means, the observation path is through the optical viewer. And the third and fourth optical means are arranged substantially horizontally with respect to the focal surface Radiation exposure system to suit the eyes between.   5. The system according to claim 2, wherein the electrical signal is additionally applied to the fourth control signal. A position of the fourth optical means in response to a control signal. A hand that brings the focused emission point into the focal plane by adjusting relative to Radiation exposure system suitable for the human eye, including steps.   6. The system according to claim 1 or 2,   To provide different attenuation between the second end of the optical fiber and the first optical means Corresponding to the light emitted from the second fiber end, it is formed on the separated beam First optical means, by which the separated beams are individually controllable Radiation exposure system suitable for the human eye, including additional means.   7. The system according to claim 1 or 2,   The second optical fiber is provided between the second end of the optical fiber and the first optical means. The radiation emitted from the edge of the bar is provided with different attenuation control and is shaped by the first optical means. Means associated with the separated beams produced, and   Connected to said attenuation control device and for controlling the individual separated beams Of the beam and the resulting emission point Make each of said focusing surfaces controllable by an electrical signal Radiation exposure system suitable for human eyes.   8. The system according to claim 1 or 2, wherein   A plurality of masks in the path of radiation emitted from the second optical fiber end, Shutters, each shutter being a plurality of spatially separated beams. Of the shutters, each of which is located in the cross section of the radiation. And is movable in the radial direction from the outer position to the position closest to the innermost position. And associated with each shutter to define the path of said attenuation. This allows the shutter to be additionally mounted in its open position. Including a disc Radiation exposure system suitable for human eyes.   9. The system according to claim 1 or 2, The emission end of the second optical fiber is diffused when received by the first optical means. Radiation exposure system suitable for the human eye having sex.   10. The system according to claim 1 or 2, wherein the first optical means is multiplicity. Is a prism with the face of Radiation exposure system suitable for human eyes.   11. The system according to claim 1 or 2, The first optical means is a prism having one concave multi-sided surface and is suitable for human eyes Radiation exposure system.   12. The system according to claim 1 or 2, wherein the first optical means is multiplicity. A prism with the surface of   Further, each of the signals independently controls the prism, Moving between the second optical fiber end and the first optical means, thereby providing a spacing And means for controlling the distance on the focal plane and the focusing position according to the electric signal. Radiation exposure system suitable for human eyes.   13. The system according to claim 1 or 2,   The third optical means is substantially free of chromatic aberration correction,   The second optical system is provided with an excess visible wavelength correction of one extra visible wavelength. So that the beam in said infrared and visible radiation is A radiation exposure system suitable for the human eye that is coaxially superimposed on its focal point.   14. Device according to claim 1 or 2 from the infrared electromagnetic radiation source. Infrared electromagnetic radiation exists substantially between 1.8 and 2.55 microns Radiation exposure system suitable for human eyes.   15. System according to claim 1 or 2, wherein said infrared and visible radiation sources Is a laser radiation exposure system suitable for the human eye.   16. The system according to claim 1 or 2, wherein each infrared and visible The radiation sources are independently controlled in on or off situations, suitable for the human eye. Tem.   17． A radiation exposure system suitable for the human eye:   An infrared electromagnetic radiation source,   With visible electromagnetic radiation source   The infrared and visible radiation sources receive the superimposed radiation and generate a plurality of First optical means for producing spatially separated beams;   Second optical means for receiving the beam and collimating it;   It accepts the collimated light and focuses the beam on the focal plane as a point. Human beings Third optical means arranged in line with the focal plane and exposed by the point When,   Disposed in the collimated path between the second and third optical means Reflects the beam from one towards the optical means, while allowing the passage of visible light Fourth optical means, and   By providing a visible image that has passed through the third and fourth means, Includes an optical viewer that allows viewing between focal surfaces Radiation exposure system suitable for human eyes.   18. The system of claim 17, wherein   The slit surface exposes the focal surface between the third optical means and the fourth optical means. The human eye, which is arranged to illuminate and thereby is arranged in the focal position Further Includes Means To Be Visible By Optical Viewer At Focus Radiation exposure system suitable for human eyes.   19. 18. The system according to claim 17, wherein the first optical means is one convex. It is a multi-sided prism Radiation exposure system suitable for human eyes.   20. The system of claim 17, wherein   A mask, which is arranged in front of the second optical means and which has a plurality of masks. The shutter is arranged such that one shutter corresponds to the spatially distributed beam. And Each shutter is slidably open and closed from the inside to the outside from said radiation Movable between positions, and additionally when each shutter is in its open position The means by which its attenuation is made adjustable, Was added Radiation exposure system suitable for human eyes.   21. A system according to claim 19 wherein:   Furthermore, it includes a mask in the radiation path in front of the radiation prism, said mask A plurality of shutters, wherein one shutter is said plurality of spatially separated Are provided to correspond to the emitted beams, each shutter being Slidable between an outer position and an inner position, and means are provided for each said sh It is suitable for the human eye because the attenuation is adjustable in its open range. Radiation exposure system.   22. The system according to claim 20 or 21,   Further includes multiple individually controllable motors,   The motor corresponds to the plurality of mask shutters, each of which has a first and a fourth light. A radiation exposure system suitable for the human eye that is installed between academic means.   23. An optical mask:   It has at least one aperture and light passing through it has an optical center An opaque structure that allows   Multiple shutters, one end of which is wedge-shaped,   The plurality of shutters have their wedge-shaped ends aligned with the optical center in a unique radial path. Guided to move along, The guide means is an elastic element for urging the shutter outward from the optical center. Including elementary,   A means for individual movement is to move the shutter to the optical center against the elastic body. An optical mask including means for traversing.   24. The optical mask of claim 23, wherein the optical stops are individually adjusted. The shutter's offset position is individually adjustable. An optical mask.   25. The optical mask according to claim 23, The shutter driving means includes eccentric pins for each shutter. Has a member for rotating the pin and associates the first and second stable rotational positions with the pin. The shutter guide means is located inside the optical optical axis center of the optical means, and Of the shutter guide means apart from the stable position of the optical marker which is the second stable position. School.   26. The optical mask according to claim 25, Said shutter drive means additionally have individually controllable motor means, which each Associated with each rotating member, and in response to an electrical signal, rotating the rotating member with the first and second rotating members. An optical mask that rotates between the positions.