Surgical light with controlled optical radiation
SUBSTANCE: invention refers to medical equipment, namely to surgical lights. A light comprises main and supplementary light diodes mounted on a body, distributed on its surface and grouped by the main and supplementary light diodes, and a light field control. The groups of the main and supplementary light diodes are coupled both to each other, and to the light field control. The main light diodes are fixed on the body of the light with their optical axes transecting an axis of the light in the centre of a light spot, while the supplementary light diodes are fixed on the body with their optical axes creating an annular concentric light spot surrounding a main spot.
EFFECT: invention allows higher fixation reliability of the light and maintained higher luminous efficacy.
3 cl, 3 dwg
The invention relates to medical equipment, namely to the lighting device with light-emitting diodes with light control emission
Since in everyday practice includes LEDs, lighting apparatus using the lamp, composed of LEDs, has special advantages compared to existing fluorescent lamps, incandescent lamps, etc. which is their long service life and low energy consumption.
Lights with LEDs, used as lights or traffic lights, described in detail in the patents of the Russian Federation such as№2123633, №2151473, №2153623, №2202731, №2227245, №2244870, №2248499 and others. They are intended to illuminate distant objects, for use in systems of the circular review and lights, which do not require the establishment of a maximum level of illumination inside the working area and the constant diameter of the light field.
To date, however, LEDs are not widely used in the surgical lamps, which requires providing shadowless effect and high luminous efficiency due to high luminance and uniform distribution of light flux within the working area. Luminous flux of the surgical light fixtures is created by adding the light fluxes of the individual optical modules is proishodit at a distance of 0.7 m - 1.4 m from the building. Inside the work zone creates maximum light level and remains constant diameter of the light field. In addition it should be possible to control the diameter of the light field. For this surgical lamps are equipped with control devices of the light field, which mainly represent rotary mechanical means.
Known surgical lamp with a mechanism for regulating the size of a light field, made in the form of rotatable mirrors reflecting the light beam from the light source (Lamp brand BH-500 company FAMED (Poland)).
In the known lamp the mechanism of regulation of the size of the light field is not effective enough because of the low synchronization rays, use extra reflective surface, and also has large dimensions.
Known surgical lamp, in which the adjustment of the lighting system is carried out by movement of the lamp relative to the reflector (surgical lamp LS-6; passport 66-00-PS).
The known lamp can only adjust the size of the light spot shallow depth, and also has large dimensions.
Also known surgical light with light control emission containing fixed in the housing optical elements in the form of ha is agennix lamps and the control unit of the light field, includes installed on the main axis of the illumination system of the reference stock, in the upper part of which is placed a split ball joint with six degrees of freedom, means to rotate the optical elements in the form of multiple Cam located under the ball support and interacting with a vertical leashes brackets optical elements that interact with alignment pins (p. the Russian Federation No. 2149309, IPC F21V 14/02, F21V 21/29, F21W 131:205, publ. 20.05.2000,).
In the known technical solution, management of the light radiation is effected by mechanical means, enabling rotation optical elements having a complex structure, large overall dimensions and the reliability decreases as the wear and tear of mechanical components.
The closest to the technical nature of the claimed device is operating lamp containing fixed to the housing optical elements pivotally connected to each other, and the control unit of the light field by mechanical means (application EP No. 1568935, IPC F21S 8/00, F21S 2/00, publ. 31.08.2005,).
The known lamp has high luminous efficiency. However, the management of light radiation in the known lamp is carried out by mechanical means providing rotation of the optical elements is otnositelno each other, reliability decreases as the wear and tear of mechanical components.
The claimed invention is directed to improving the reliability of surgical luminaires while maintaining high luminous efficiency and is solved as follows.
In the surgical lamp with control light radiation containing fixed to the body of the lamp optical elements and the control unit of the light field, according to the claimed technical solution optical elements made in the form of main LEDs, dispersed on the surface of the lamp enclosure, and additional LEDs, placed between the main LEDs and has a spatial orientation that is different from the spatial orientation of the main LEDs, while the primary and secondary LEDs arranged in groups, and groups of the main LEDs and a group of additional LEDs are connected with the control unit of the light field.
The main LEDs mounted on the housing with the intersection of the optical axes with the axis of the lamp in the center of the light spot.
Moreover, additional LEDs are fixed to the body with the formation of their optical axes of the concentric light spot in the form of a ring around the main spots.
In addition to the, the control unit of the light field includes a control unit that is connected to the group of the main and additional led by regulators, each of which is connected to the power supply.
Core installation of LEDs distributed on the body of the lamp, and additional LEDs - between the main LEDs, as well as the Association of LEDs in the group and different spatial orientation of the groups of the main LEDs and allows electronic control of the diameter of the light field, which increases the reliability of the lamp.
Execution control device of the light field consisting of a control unit, connected to the group of the main and additional led by regulators, each of which is connected to the power supply, allows the adjustment of the balance of the currents passing through the group of the main and additional LEDs, providing a redistribution of the light flux within the light field, i.e. allows electronic control of the light field, thus increasing the reliability of the lamp.
The presence of the distinctive features of the prototype of essential features allows you to recognize the inventive device with a new one.
The prior art is not identified technical solutions that match the definition with the distinctive features of the proposed facility, therefore, the proposed device meets the criterion of inventive step.
The present invention will be best understood by consideration of the detailed description together with the accompanying drawings of the present invention, this description should not be construed as limiting, but only as an example for explaining and understanding the invention.
Figure 1 - layout of the main and additional LEDs on the surgical lamp.
Figure 2 - stroke light rays in the lamp.
Figure 3 - control unit of the light field of the surgical lamp.
To the housing 1 lamp attached 2 main and additional 3 LEDs, arranged in groups. The main LEDs 2 have a width of a light beam, 6.5°, and focused in such a manner that their optical axes converge in the center of the light spot at a distance of 1 m from the surface. Additional LEDs 3 have a width of a light beam equal to 10°, and are spread between the main LEDs 2, and the optical axis form a concentric light spot in the form of a ring around the main light spot, a radius of 100-200 mm from the center of the spot, which is optimal for surgical lamps. The control unit of the light field consists of a power supply unit 4, a control unit with microcomp the PC 5, d / a converters 6A and 6b, the current generators 7a and 7b.
When connecting the lamp to the mains at the same time the power from the power supply unit 4 is supplied to the groups of the main LEDs 2 and additional LEDs 3. If necessary, large area lighting (wide stripes) include groups of the core 2 and an additional 3 LEDs. In case of deep wounds, when you want a small light spot, include only the group of the main LEDs 2. When endoscopy is needed only highlighting areas where there is an operation using an endoscope, therefore, include only the group of the additional LEDs 3. In these cases, using a microcontroller with a control unit 5, d / a converters 6A and 6b and generators 7a and 7b perform the adjustment of the balance of the currents passing through the core 2 and an additional 3 LEDs, providing a redistribution of the light flux within the light field.
The invention can be used in medical technology.
1. Surgical light with light control emission containing fixed to the body 1 lamp 2 main and additional 3 LEDs, distributed over its surface and groups of the main group and of the additional LEDs, and the control unit svetiogoria, moreover, the group of the main LEDs 2 and a group of additional LEDs 3 are interconnected with a control unit of the light field, wherein the main LEDs 2 mounted on the housing 1 lamp crossing their optical axes with the axis of the lamp in the center of the light spot, and the additional LEDs 3 mounted on the housing 1 with the education of their optical axes of the concentric light spot in the form of a ring around the main spots.
2. Surgical lamp according to claim 1, characterized in that the control unit of the light field includes control unit with microcontroller 5, which through d / a converters 6A and 6b and the current generators 7a and 7b connected group of the main LEDs 2 and a group of additional 3 LEDs, each of which is connected to the power supply unit 4.
FIELD: heating systems.
SUBSTANCE: invention refers to independent electric power supply devices of navigation shore-based and sea-based equipment devices as power source for charging the energy storage units (storage batteries) with thermoelectric conversion of solar power. Plant with thermoelectric generator is intended for visual devices of navigation equipment, includes light-optical device, independent electric power source (accumulator) and storage energy device with mechanism of its being connected to this source; at that, it is equipped with thermoelectric converter (thermoelectric generator) as charging device, which converts heat solar energy to electric one, and which is placed inside solar-heat collector, the functions of which are performed with optical device on the basis of Fresnel lens, which is rigidly fixed in caustic neck (focus) of solar-heat collector.
EFFECT: invention shall provide design simplification, increase in reliability, life time and operation process at sites with navigation equipment devices.
FIELD: textile industry, in particular, fabrics or other textile products including illuminated fibers, and articles manufactured from textile product and provided with light source.
SUBSTANCE: textile product includes lit-through fibers and consists of fabric manufactured from interwoven threads and warp fibers. At least some quantity of warp fibers and interwoven fibers consists of lit-through filaments. At least one part of lit-through filaments having free length is not interwoven with respective lower part of fabric. Lit-through filaments are cut and released from respective lower part of fabric.
EFFECT: improved quality of textile product and articles manufactured from said textile product.
11 cl, 7 dwg
FIELD: buoyant lanterns.
SUBSTANCE: buoyant lantern has base for placement of at least one light source or illuminating aid. Light screen is connected with base of lantern. The screen has hole to be connected with base; in total the screen has closed spherical surface. Seal member is provided between light screen and base. Contact area between light screen and base is disposed lower than surface of fluid, surrounding lantern. Lantern is connected with at least one fitting element, disposed lower that level of liquid; fitting aid is anchored or being able to be anchored. At least one fitting element is connected with light screen outside base of lantern.
EFFECT: prolonged service life of lantern; improved reliability.
12 cl, 6 dwg
FIELD: instrument making.
SUBSTANCE: proposed illumination system comprises laser, laser beam splitter and focusing element, all connected optically. Laser beam splitter represents the first plane-parallel glass plate arranged at an angle to laser beam axis. Light-splitting coat is applied on output face of said plate to split incident laser beam into, at least, two beams, while mirror coat is applied onto input face at points whereto beams reflected from light-splitting coat fall. Light-splitting coat is applied in zones of incidence of initial beams and those reflected from mirror coat apart from the last beam coming out of the plate. Note here that inclination angle of the first plane-parallel glass plate is selected to allow spatial separation of outcoming beams, while plate thickness is selected to make optical path difference between whatever outcoming beams exceeding the length of laser radiation coherence.
EFFECT: increased uniformity of illumination over beam section due to diffraction and interference phenomena on optical irregularities and reduced sizes of illumination system.
2 cl, 3 dwg
SUBSTANCE: item of illumination in version 1 includes translucent and hard shell and light source and light reflector being inside this shell. Reflector locator is also inside shell. Light reflector is movable and located so that it can be displaced along internal surface of shell and its own axis. Item of illumination is provided with displacement drive represented as a first magnet, which is movable and located on the external side of shell, and the second magnet having rigid connection with reflector. Besides, magnets are made attracting. Displacement drive is both manual and mechanical. The latter has, at least, pair of remotely controlled drivers connected to magnet 1. Item of illumination in option 2 contains translucent hard shell. Light source and light reflector are located inside this shell. Light reflector is movable and located inside shell so that it can be displaced along internal surface of shell and its own axis. Item of illumination is provided with reflector displacement drive represented with the first magnet, which is movable and located on the external side of shell, and the second magnet having rigid connection with reflector. Besides, magnets are made attracting. Brush, which is rigidly connected with magnet and cleaning liquid supply unit for external surface of shell are situated on the side of the first magnet directed to shell.
EFFECT: improvement of functional possibilities of illumination item.
9 cl, 7 dwg
FIELD: lighting engineering.
SUBSTANCE: searchlight comprises Fresnel lens, reflector, lamp, and at least one additional Fresnel lens. The additional Fresnel lens is made of a lens with negative focus distance and, hence, is a dispersing lens having virtual focus point. The distance (a) between the Fresnel lens and reflector can be changed in correlation with the distance (b) between the lamp and reflector on the basis of the aperture angle determined for the light beam. The virtual focusing point of the dispersing lens is positioned out of the unit of the Fresnel lens, and it can be in coincidence with the focusing point of the reflector that is located far from the reflector. The Fresnel lens is made of a double-concave dispersing lens and has double lens with chromatically corrected characteristics of imaginary. The searchlight has Fresnel lens with integrated diffusion round window that is positioned at the Fresnel lens center and defines the system for mixing light which changes the ratio of the scattered light to the reflected light. The distance (b) can be controlled by moving the lamp with respect to the top of the reflector. The reflector is made of metallic or transparent dielectric material, preferably glass or/and plastic, and represents an ellipsoidal reflector. The Fresnel lens is coated with the dielectric interference layers that change the light spectrum passing through them. The auxiliary reflector is interposed between the Fresnel lens and reflector.
EFFECT: reduced sizes and efficiency.
20 cl, 8 dwg
SUBSTANCE: proposed Fresnel-lens searchlight whose light beam is radiated at adjustable aperture angle has reflector, lamp, and at least one Fresnel lens. The latter is essentially negative focal length lens and, hence, it is negative lens with virtual focal point. Searchlight is designed for superposing focal point distant from reflector onto virtual focal point of Fresnel lens. Mentioned point of reflector is superposed on virtual focal point of Fresnel lens in searchlight position forming quasi-parallel path of beam. It is concave-concave negative lens incorporating duplex lens with chromatically corrected display characteristics. Searchlight Fresnel lens has circular integrated dissipating glass disposed at center of Fresnel lens thereby forming light mixing system that varies some fraction of dissipated light relative to fraction of diametrically and optically reflected light, that is, light mixing is function of Fresnel-lens searchlight position. Searchlight ellipsoidal reflector is made of metal or transparent, preferably dielectric, material in the form of glass and/or plastic. Fresnel lens is covered with a number of dielectric interference layers which function to vary spectrum of light passed through lens. Auxiliary reflector is disposed between Fresnel lens and main reflector.
EFFECT: reduced space requirement and mass compared with prior-art searchlights of this type.
19 cl, 6 dwg
SUBSTANCE: universal source comprises housing, power supply unit, set of light-emitting units provided with a devices for current control, optical elements, and means for positioning. The means for positioning has three degrees of freedom and provide the light-emitting units to be positioned with respect to the diffraction unit according to the formula d(sinαi + sinβ i) = λi, where d is the pitch of the diffraction unit, αi is the angle of incidence of the beam, which is the angle between the normal to the diffraction unit and direction of the beam from i-th light emitting unit, βi is the diffraction angle, m is an integer, and λi is the wavelength of the beam from i-th light-emitting element.
EFFECT: expanded functional capabilities.
10 cl, 4 dwg
SUBSTANCE: lamp comprises transparent plafond, light-emitting diodes that have different spectra of emission and are distributed over the plafond, power source, and controller for control of current of the light-emitting diodes. The lamp is divided into the illumination zones. The light-emitting diodes are built in the plafond body so that their light beams enter the platform. The section of each zone of the plafond comprises several light-emitting diodes.
EFFECT: reduced weight and simplified assembling.
13 cl, 23 dwg
FIELD: signaling devices, mainly beacon apparatuses and railway traffic lights.
SUBSTANCE: the device has a radiation source isolated from exposure to environment by a transparent shell connected to the body, as well as contacts and a pin with semiconductor crystals positioned on it, which serve as a radiation source. The transparent shell has a cover from above, and the body has openings for input of flexible conductors to the contacts. The pin is made in the form of a printed-circuit board, and the semiconductor crystals are grouped together in light-emitting diode modules located at nine levels. At the first and ninth levels positioned are three light-emitting diode modules at each, at the second level-six light-emitting diode modules, at the third, fourth and sixth levels-eight-emitting diode modules at each, at the fifth level-nine light-emitting diode modules, at the seventh level-seven light-emitting diode modules, at the eight level-six light-emitting diode modules. The modules are installed at proper distances from the transparent shell and at angles to the optical axis providing for production of crossing light flows formed in the preset directions. The transparent shell is made in the form of an arc providing for light transmission within the frequency range 460 to 633 lm.
EFFECT: enhanced intensity of radiation and expanded field of application of the signaling lighting unit.
SUBSTANCE: invention relates to individual means of hygiene and can be used for protection from impurity caused by dental "litter" during dental treatment. Disposable dental tissue is made of water-proof material with additional 2 cm wide stripe from blown-through with folded plaits in form of mask, strongly fixed with its lower edge to the middle of upper edge of main tissue field, which has a hole with 3 cm diametre, whose centre is at 5 cm distance from upper edge of stripe, which can be fully and hermetically filled with transparent and colourless lip shield. On the external surface of tissue located are two rows of water-collecting pockets, which are located in "П"-like form around the hole, open to its side and being at 2 cm distance from the hole and from each other. External wall of pockets is 3 cm wide, upper third of said wall inside pocket cavity is connected with internal cavity wall with transversal partitions, made with transversal folds from water-proof material, re-enforced with material which has spring properties.
EFFECT: tissue prevents dirtying of patient and health care workers during dental surgery with application of water solutions due to increase of efficiency of collecting fluid, flowing from oral cavity.
SUBSTANCE: in conditions requiring block of a superior gluteal nerve, a patient is horizontally pronated with his feet adducted. A line marked in the middle is drawn from behind through a lower edge of an ischial bone and an upper edge of a wing of ilium. A line transversal to a longitudinal axis of a body is drawn through the mark and extended on a gluteal skin. Thereafter, from one side through a projection of a centre of the lower edge of the ischial bone and the upper edge of the wing of ilium, a second line is drawn, and its intersection with the line drawn transversally to the longitudinal axis of the body on skin is dotted to trace a needle therethrough into tissues in a frontal plane perpendicularly to a sagittal plane. Thereafter, a medicinal solution containing 60 ml of 0.25 % novocaine and 10 mg of vitamin B12 is injected with 0.2 mg of dexamethasone added per each 1 ml of the administered solution.
EFFECT: higher efficacy of the block of the superior gluteal nerve due to more precise drug delivery thereto.
2 cl, 2 dwg, 1 ex
SUBSTANCE: invention relates to packages for items of medical purpose. Protective set comprises container with hole, through which items are placed into container, and closing element to seal hole, having one or several cuts or perforation holes to unseal at least part of this element to gain access inside container. Closing element is equipped with identification data printed on closing element before or after application of closing element onto container. Protective set comprises an additional cover arranged with the possibility of connection to container and disconnection from it, and having several teeth arranged along whole perimetre of cover or along its part to connect by means of latching with container along its edge or along part of its edge, and arranged so that teeth are destroyed as cover is removed. Additional cover has a tip and/or perforation holes arranged aside and intended to unseal at least part of additional cover.
EFFECT: invention provides for storage of accessory of one patient and their separation from accessories intended for other patients.
5 cl, 4 dwg