RU189294U1 - ADJUSTABLE EXPOSITIONAL LAMP - Google Patents

Abstract

The invention relates to the field of lighting, in particular to an adjustable exposure lamp, designed to illuminate the objects of the exhibition at exhibitions, in museums. The technical result achieved when using the claimed utility model is to regulate the size of the light spot of a non-circular shape. The problem is solved in that in the luminaire, which consists of a hinged busbar adapter, power supply module and optical module, the optical module contains a hood, a flat-faceted lens, two surface diffusion film diffusers and a light emitting element with a LED mounted on the radiator. The light-emitting element moves along the axis of the optical module housing along guides. To do this, a blind threaded hole is made in the radiator, with which the screw interacts. The screw rotates in the hole in the transverse cross member mounted on the end of the optical module housing and is equipped with a manual feed handwheel. Film diffuser with axisymmetric indicatrix with a diameter equal to the diameter of the lens, adjacent to the flat side of the lens surface scattering. A film diffuser with a biaxymmetric indicatrix is built into the hood with a scattering surface directed toward the lens. The hinge element between the adapter and the power supply module is a nipple, between the power supply module and the optical unit is a hollow bolt. 1 hp f-s, 4 ill.

Description

Technical field

The invention relates to the field of lighting, in particular to the lamp, which can be used to illuminate individual items of the exhibition at exhibitions, in museums, in the windows of trading halls.

The level of technology

From the current level of technology known exposure lamps. So known track lamp (US patent US 2015184841 (A1), F21S 8/00, 07/02/2015), containing the busbar, power supply module, optical module, while the power supply module is installed with the possibility of longitudinal movement along the busbar and provides electrical and mechanical connection with and the optical module is connected to the power supply module by a two-stage articulated unit with intersecting mutually perpendicular axes of rotation. This lamp provides "targeting" of the light beam to the object, but does not involve the regulation of the size of the light spot and its shape for the "accent" lighting of the object. This limits the possibilities of the lighting installation.

In addition, a lamp is known that contains adjustable lighting modules (RF patent RU 2449212 C2, F21 V14 / 02, 04/27/2012). The luminaire comprises a housing and one or more optical modules hinged in the housing. Each of the optical modules is made to rotate in the housing of the lighting module. In turn, the housing of the lighting module is installed in the luminaire with the possibility of rotation around an axis perpendicular to the axis of rotation of the optical module. The technical result is the provision of the possibility of changing the shape of the spot lighting. For the formation of the required configuration and size of the lighting spot, several lighting modules are used, which greatly complicates both the design of the lighting system and its operation.

In addition, a lamp is known (US patent US2017023211 (A1), F21V 13/04 1/26/2017), the optical system of which consists of a protective glass of a luminaire light window, to the inside of which there is an adjacent film diffuser with a microrelief applied to its surface indicatrix of scattering, changing the configuration of the light spot.

Film diffusers are also known that provide a double-symmetric light spot shape other than a circle, for example, an elliptical (film diffuser with surface scattering of the E series, manufacturer, see LED Diffuser Products: [electronic resource] Brightview Technologies USA, Durham, 2018. URL: https: / /www.brightviewtechnologies.com/products/led-diffusers/elliptical-led-diffusers/page.aspx?id=1121 (Contact Date: 02/20/2019))

or an optical diffuser with a surface microstructure with a photometric body of both wide CSS and other types, see US Patent US 10,072,816 (B2), F21V 5/002 11.09 2018

The use of the optical system described in US patent US2017023211 (A1) together with the specified film diffusers allows you to expand the capabilities of the lighting device, allows you to choose the configuration of the light spot, but does not provide for the regulation of its size.

In addition, the ceiling lamp is known (the patent of the People's Republic of China CN106090754 (A) F21S 8/04 09.11.2016). In the optical system of this LED luminaire, a film diffuser is sequentially placed, providing uniform scattering of the luminous flux from a group of discretely placed LEDs, and a film diffuser with a non-Rayleigh scattering indicatrix, providing a change in the direction of the luminous flux. This sequence of elements increases the uniformity of illumination in the zone of the light spot, but does not solve the problem of regulating the position and size of the illuminated zone.

Closest to the claimed technical solution is a track lamp with remote control (Chinese patent CN106439605 (A), F21S 8/00, 02.22.2017). The luminaire consists of a power supply module, an adapter providing electrical and mechanical connection to the track, connected to each other by a vertical hinge, an optical module hinged to the power supply module by a horizontal hinge. The optical module includes a cylindrical housing, a lens mounted in the window of the optical module and fixed a hood, a radiating element, which is placed with the possibility of longitudinal movement inside the housing along internal guides. In this case, the radiating element consists of an LED light source and a cylindrical radiator, and the LED source is fixed at the end of the radiator from the side of the optical module window, and on the other side in the radiator there is a blind threaded hole with which the screw interacts. This lamp provides adjustment of the position of the light spot on the illuminated object and its diameter. However, the light spot formed by this lamp has not high quality, noticeable chromatic aberration, uneven illumination in the center of the spot and a significant difference in the size of its border.

Disclosure of the essence of the utility model

The technical task, the solution of which the claimed technical solution is directed, is to overcome the drawbacks of analogs and prototypes and is aimed at expanding the number of control parameters and obtaining a light spot with a shape other than a circle with appropriate dimensions and orientation, highlighting an elongated illuminated object.

In the process of solving the problem of forming high-quality accent lighting of an object, which is part of the exposure, additional requirements are made to the lighting system to ensure not only high-quality lighting characteristics, but also changes in the geometry of the light spot. Due to the congestion of the exhibition area, it is difficult to select one object from a variety of similar objects surrounding it with a lamp with the generally accepted shape of a light spot in the form of a circle. Since the round light spot does not always correspond to the shape of a closed curve describing the illuminated object, and highlights neighboring objects. An example is the formation of illumination of elongated objects in museum expositions randomly placed on a stand. The solution to this problem is either along the way to isolate an unnecessarily large area under this object and disrupting the “rhythm” of the exposure, or using a lamp consisting of several modules. Placing a film diffuser with a non-Rayleigh scattering indicatrix in the light window of the device allows you to choose the shape of the light spot

The technical result achieved when using the claimed utility model is to regulate the size of the light spot of a non-circular shape. This problem is solved due to the fact that in an adjustable exposure lamp consisting of a power supply module and an adapter that provides electrical and mechanical connection to the track, connected to each other by a vertical hinge, an optical module hinged to the power supply module by a horizontal hinge and consisting of a cylindrical body , a lens installed in the window of the optical module and fixed with a hood, and a radiating element placed with the possibility of longitudinal movement inside the case the optical module has at least one inner longitudinal guide, with the radiating element consisting of an LED light source and a cylindrical radiator, and the LED source is fixed on the end of the radiator from the window side of the optical module, while on the other side of the radiator there is a blind hole in it, with which the screw interacts, which, according to the technical solution, is fixed with the possibility of rotation on the transverse traverse mounted on the end of the optical module housing and equipped with a handwheel m manual feed, and the flat side of the lens adjoins the film diffuser surface scattering with axisymmetric scattering indicatrix with a diameter equal to the diameter of the lens, while the film diffuser is installed scatter surface in the direction of the lens, and the film diffuser of surface scattering with a non-Rayleigh biaxially symmetric indicator scatter is built into the blend. In this case, the hood can be installed with the possibility of rotation relative to the longitudinal axis of the optical unit.

Brief Description of the Drawings

The invention is illustrated by drawings, which depict:

FIG. 1 shows the view of the lamp in the front axon view of the front

FIG. 2 shows the view of the lamp in the front axon view from the rear.

FIG. 3 is a view of the lamp with a cross section of the frontal plane (the power wire of the LED and the internal electrical installation of the power supply module is conventionally not shown);

FIG. Figure 4 shows the results of full-scale modeling of the use of a surface diffusion film diffuser with a non-Rayleigh biaxially symmetric scattering indicatrix of elliptical type E embedded in a blend.

The light spot of the LED lamp is fixed in position 1 when the radiating element is in the focal plane of the lens, i.e. in its maximum position from the lens. In position 2, the radiating element is at a distance of 0.7 from the limit movement in the direction of the lens corresponding to position 3.

Positions in the drawings of FIG. 1, fig. 2, FIG. 3 correspond to the following components and parts:

1. Power Module

2. Optical module

3. Adapter

4. Power Module Case

5. DC source

6. Potentiometer

7. Nipple

8. Power wires

9. Hollow bolt

10. Optical module housing

11. Light-emitting element

12. Prismatic guide

13. Lens

14. Film diffuser with axisymmetric scattering indicatrix

15. Blend

16. Safety glass

17. Film diffuser with a biaxymmetric scattering indicatrix

18. The mechanism of the longitudinal movement of the light-emitting element

19. Radiator

20. LED light source

21. Connector

22. Electrical cable

23. Screw adjusting

24. Traverse

25. Handwheel manual adjustment

26. Ring

27. Ball lock

28. Ring groove

Implementation of the utility model

The inventive device is an adjustable exposure lamp, which can be used to illuminate individual objects of the exhibition at exhibitions, museums, in the windows of trading halls. The luminaire includes a power supply module 1 and an optical module 2. The power supply module provides, via adapter 3, an electrical and mechanical connection to the busbar. The power supply module consists of a housing 4, inside which is placed an adjustable DC source 5 and a potentiometer 6, which is an element for controlling the output characteristics of the current source. Two hinges are mounted on the power module case, the first vertical connecting power supply case 4 and adapter 3 and the second horizontal connecting power supply case 4 and the optical module 2. The axis of the vertical hinge is nipple 7, through the central hole of which the power hinge 8 passes. a hollow bolt 9. The optical module includes a housing 10, a light-emitting element 11 placed inside it so that it can move along the housing along a prismatic guide 12, which is fixed on the inner surface of the housing 10, a flat-spherical lens 13 with a film diffuser 14 with axisymmetric scattering indicatrix, a blend 15 with protective glass 16 and a film diffuser 17 with a biaxial symmetry scattering pattern, a mechanism for longitudinal movement of the light emitting element 18. The light-emitting element consists of a cylindrical radiator 19, an LED light source 20 mounted in a connector 21 at the end of the radiator 19. The radiator is made of a heat-conducting material, for example, aluminum melt, and has a longitudinally extending along its entire length fins. An electric cable 22 is passed through the hollow bolt 9, which connects the constant current source 5 and the LED light source 20. At the end of the radiator 19 opposite to the one on which the LED is mounted, there is a blind threaded hole interacting with the adjusting screw 23 fixed on the cross-bar 24 with the possibility rotation. The adjusting screw is equipped with a manual feed handwheel 25. The traverse is fixed to the body 10 in its end face opposite to the light window. The threaded hole, the screw 23 with the handwheel 25 and the cross member are parts of the mechanism for the longitudinal movement 18 of the light-emitting element 11 relative to the lens 13. The film diffuser 14 is adjacent to the flat side of a flat-sphere lens. Both parts are installed in an optical window and pressed to the ring 26. The film diffuser 14 is a film with a regular surface microstructure. The film diffuser 14 is installed by the scattering surface in the direction of the lens. The lens hood 15 with a protective glass 16 and a film diffuser 17 is installed in front of the lens using a ball lock 27. The film diffuser 17 is also mounted with a scattering surface in the direction of the lens. The hood 15 has an annular groove 28 on the outer surface that interacts with the lock ball 27, allowing the hood to rotate around the longitudinal axis of the device.

The inventive device works as follows.

The busbar voltage is applied. The lamp is installed in the bus duct near the illuminated object, so that the directional beam of light does not cause the illumination depth of the illuminated or large areas of the shaded parts of the object of exposure. By rotating the handwheel 25, the light-emitting element 11 is moved to the extreme rear position. In this case, the LED light source is placed in the focal plane, and the light spot has a minimum transverse size. By rotating the optical module 2 around the vertical and horizontal axis, the “center” of the light spot is combined with the “center” of the illuminated object. By rotating the blend 15, the axis of symmetry of the light spot along its greater length is combined with the illuminated object. Rotation of the manual adjustment knob 25 sets the required dimensions of the light spot so that it covers the object of the exposure. Rotating the knob of potentiometer 6 sets the required illumination of the object.

A specific example

Manufactured exposure lamp of the claimed design. Overall dimensions of the lamp 132 × 82 × 247 mm. The case of the power supply module has dimensions of 135 × 84 × 47 mm and is equipped with an adapter that connects the luminaire to the busbar for Euro-DIN class 1 lighting systems according to GOST 60570-99. The optical module has a diameter of 80 mm and a length of 154 mm. The luminaire uses a current source that, when adjusted with a potentiometer, provides a stabilized current of 100 to 300 mA. The optical module uses LED assemblies from 13 to 20 watts. They provide the maximum value of the luminous flux from 1300 to 2700 lm. Regulation of the luminous flux using a potentiometer placed in the housing, allows to reduce the luminous flux to a value of one-tenth of its maximum value. The lamp uses a flat-sphere lens of optical silicate glass with a focal length of 40 mm. LED assembly type СОВ (chip on board) is placed on the end of the extruded aluminum profile radiator. This light-emitting element moves along the axis of the optical module along two prismatic guides. The longitudinal movement mechanism consists of a blind threaded hole, made in the radiator from the end opposite to the LED assembly, a screw fitted with a handwheel, and a traverse attached to the end of the optical module with a hole in which the screw rotates. Trapezoidal thread is used in the screw pair, providing movement of the light-emitting element by 47 millimeters.

Adjacent to the flat side of the lens is a film diffuser with surface scattering of the type MPR-10 with a scattering angle of 15 to 30 degrees. Manufacturer see LED Diffuser Products: [electronic resource] Brightview Technologies USA, Durham, 2018. URL: https://www.brightviewtechnologies.com/products/led-diffusers/led-diffuser-products/page.aspx?id=1102 (Date of appeal: 02.20.2019)). The MPR-10 film diffuser is installed with a structured side on the side of the lens. The lens and film diffuser are fixed with a hood. In the luminaire a 30 mm long blend is used. In a hood at a distance of mm from the end, 1.0 mm thick polycarbonate glass and a film diffuser of type E-1060 are glued in, manufacturer. See LED Diffuser Products: [electronic resource] Brightview Technologies USA, Durham, 2018. URL: https: // www. brightviewtechnologies. com / products / led-diffusers / elliptical-led-diffusers / page.aspx? id = 1121 (Revised: 02/20/2019)). This film diffuser is also installed with a structured side on the lens side.

The distance from the film diffuser, installed in the blend, to the main optical plane of the lens is 36 mm. When moving the light-emitting element from the rear position to the lens by 30 mm, the transverse size of the light spot is increased by a factor of 1.5 with the minimum width of the light spot of 300 mm on the illuminated surface spaced 1200 mm from the light window of the optical unit.

Claims (2)

1. Adjustable exposure lamp consisting of a power supply module and an adapter that provides electrical and mechanical connection to the track, connected to each other by a vertical hinge, an optical module hinged to the power supply module by a horizontal hinge and consisting of a cylindrical body, a lens installed in the optical window module and fixed hood, and a radiating element placed with the possibility of longitudinal movement inside the optical module at least one A longitudinal guide, the radiating element consists of an LED light source and a cylindrical radiator, and the LED source is fixed on the radiator end on the side of the optical module window, while on the other side of the radiator there is a blind threaded hole with which a screw interacts the technical solution is fixed with the possibility of rotation on the transverse cross-beam mounted on the end of the optical module case and equipped with a manual feed handwheel, and to the flat side of the lens there is a surface diffusion film diffuser with an axisymmetric scattering indicatrix with a diameter equal to the lens diameter, while the film diffuser is installed with a scattering surface in the direction of the lens, and a surface diffusion film diffuser with a non-Rayleigh biaxial symmetry scattering indicatrix is built into the blend. 2. The lamp according to claim 1, characterized in that the hood is mounted for rotation relative to the longitudinal axis of the optical unit.

Images