TWM574575U - Puddle light - Google Patents

Abstract

The puddle light includes a first light source, a second light source, a first projection film, a second projection film, a dichroic mirror and a projection lens. The first projection film is disposed downstream of the optical path of the first light source. The second projection film is disposed downstream of the optical path of the second light source. The dichroic mirror is disposed downstream of the optical paths of the first and second projection films, and the dichroic mirror allows a first color light beam to pass through and reflect the second color light beam. The projection lens is disposed downstream of the optical path of the dichroic mirror.

Description

Welcome light

This creation is about a luminaire for welcoming guests.

The welcome light (also known as the ground light) used in automobiles is generally installed on the door or the rear view mirror. When the door is opened, the function is turned on and the image is projected on the ground, which not only produces unique dazzling image light and projected image, but also gets off at night. It also provides the function of illuminating the ground so that people who get on and off can see the ground without accidentally stepping on the dirt, puddles, or dangerous terrain on the ground.

Current welcome lights typically use a separate number of luminaires to perform context conversion in order to produce images of different contexts. However, several individual luminaires have the disadvantage of being bulky.

This creation is about a welcome light that improves the aforementioned conventional problems.

According to an embodiment of the present invention, a welcome light is proposed. The welcome light includes several light sources, several slides, color separation films, and projection lenses. A plurality of light sources are used to respectively emit light beams of a specific light color. Each of the slide sheets is disposed downstream of the optical path of the corresponding light source. Each light beam passes through a corresponding slide to form a specific pattern of image light. The color separation sheets are simultaneously disposed downstream of the optical paths of the plurality of projection sheets and can be combined with the image light to be output via the projection lens. In this way, using a color separation sheet, several numbers from several independent light sources can be used. The images of the beam are combined into a projected image. The light paths of several independent light sources share the color separation film, which can reduce the volume of the welcome lamp.

According to another embodiment of the present invention, a welcome light is proposed. The welcome lamp includes a plurality of light sources, a plurality of optical components, a plurality of light valves, another optical component for combining light, and a projection lens. A plurality of light sources are used to respectively emit a plurality of light beams. A plurality of optical elements are respectively disposed downstream of the optical path of the corresponding light source. Each beam passes through a corresponding light valve to form a particular pattern of image light. The other optical element for combining light is simultaneously disposed downstream of the optical path of the light valves and can be combined with the image light to be output via the projection lens. In this way, a plurality of images from a plurality of independent light sources can be combined into a projected image by using a beam splitting prism. The optical path of several independent light sources combined with the aforementioned optical elements for combining light can effectively reduce the volume of the welcome lamp.

In order to better understand the above and other aspects of the present invention, the following specific embodiments are described in detail below with reference to the accompanying drawings:

100,200‧‧‧ Welcome lights

110, 120, 210, 220‧‧‧ light source

130, 140, 170, 230, 240, 270‧‧‧ optical components

150, 160, 250, 260‧‧‧ light valves

180, 280‧‧‧ projection lens

290, 295 ‧ ‧ polar film

L11, L12, L21, L22‧‧‧ beams

M11, M12, M21, M22‧‧‧ fixed image

FIG. 1 is a schematic view showing a welcome lamp according to a first embodiment of the present invention.

2A-2C are schematic diagrams showing a plurality of images projected by the welcome lamp of FIG. 1.

FIG. 3 is a schematic view showing a welcome lamp according to a second embodiment of the present invention.

4A-4C are schematic diagrams showing a plurality of images projected by the welcome lamp of FIG. 3.

The welcome lamp of the present embodiment uses a color separation component to combine several images of a plurality of light beams from a plurality of independent light sources into a projected image. The optical paths of several independent light sources share a color separation component, which reduces the volume of the welcome lamp. The following is further illustrated by the specific examples.

First embodiment

Please refer to FIGS. 1 and 2A-2C. FIG. 1 is a schematic diagram of the welcome lamp 100 according to the first embodiment of the present invention, and FIGS. 2A-2C illustrate a plurality of images projected by the welcome lamp 100 of FIG. Schematic diagram.

The welcome light 100 can be installed in the rearview mirror or side skirt of the car to illuminate the ground, and the ground illumination range can present various images. The welcome lamp 100 can also be installed in a place other than a vehicle such as a ceiling or a wall.

The welcome lamp 100 includes a light source 110 (such as a first light source), a light source 120 (such as a second light source), an optical component set 130 (which may include at least one first optical component), and an optical component set 140 (which may include at least one second optical component) ), a light value 150 (such as a first light valve), a light valve 160 (such as a second light valve), an optical component 170 (such as a third optical component), and a projection lens 180.

In this embodiment, the light sources 110, 120 are, for example, packaged light emitting diode modules, laser light sources, or other types of light sources. The light sources 110, 120 can only emit a fixed single color light beam, but can also selectively emit light beams of different light colors. In this example, the light sources 110 and 120 are respectively a packaged LED module, and respectively emit a first color light beam such as red light and a second color light beam such as green light. In addition, in another example, when the space requirement is wide, the light sources 210 and 220 can be taken by a single light source. Replace it. Taking a single light source as an example, when a single light source is white light, a light splitter may be disposed downstream of the light path of the single light source to direct the red, green, and blue light in the white light to the corresponding light valve.

Each of the optical element groups 130 and 140 includes at least one optical element, such as various optical lenses, cymbals, beam splitters, polarizing elements, and the like that allow at least light to pass or be reflected. In this example, the optical element groups 130 and 140 respectively include two lenses having positive diopter, which respectively converge the light beam and are effective for collecting light.

The light valve 150 is a widely used term. In the present embodiment, the light valve 150 converts the illumination light into an image light having a fixed pattern. The light valve 150 may be a projection sheet (or a projection film), a negative sheet, a sheet metal member (opaque) having a fixed hollow pattern, a diffractive element (DOE), a full image sheet (hologram sheet), etc., and converted into illumination light. There is no need to consume power components during the light process. In this embodiment, the light valves 150 and 160 are both a projection sheet, and the projection sheet comprises a transparent substrate and a fixed pattern layer composed of a filter material (for example, ink), and the fixed pattern layer is provided with a fixing. pattern. At least a portion of the illumination light, after passing through the fixed pattern layer, may be provided with a fixed image corresponding to the fixed pattern. The fixed pattern may be composed of at least a single color/color filter material having the same/different transmittance depending on the material to be taken from the filter material. The fixed pattern of the light valves 150, 160 may include elements such as characters, symbols, images, color patches, or the like. In this example, the light valves 150, 160 are provided with a single-color fixed pattern of gray scales (each block having a different transmittance). At the same time, the fixed patterns on the light valves 150, 160 are different.

In another embodiment, the light valve 150 can include a light transmissive substrate and a filter layer, wherein the filter layer is disposed on the light transmissive substrate and has a fixed hollow pattern, and the filter layer Let the light be absorbed, and the hollowed out part allows the light to pass through, converting the illumination light into a specific outline of the image light.

In the present embodiment, the optical element 170 is used as a light combining element for combining a plurality of light beams into one. The optical element 170 may be, for example, an optical element having a light combining function such as a 稜鏡, a dichroic Mirror, a polarization beam splitter (PBS), or a TIR PRISM. In this example, optical element 170 is a dichroic Mirror that allows a beam of light having a first wavelength to pass through and reflect a beam of light having a second wavelength, wherein the first wavelength is different from the second wavelength. In this example, it allows red light to pass through and reflect green light.

In this embodiment, the projection lens 180 may include a plurality of optical elements such as lenses, cymbals, apertures, etc., and the projection lens 180 may adjust the contour of the image light or correct the aberration of the image light and output the adjusted image. Light.

As shown in FIG. 1, the light source 110 emits a light beam L11 which then sequentially passes through the optical element group 130 to reach the light valve 150 downstream of the optical path of the optical element 130. After the light beam L11 passes through the fixed pattern of the light valve 150, the first image light having the fixed image M11 corresponding to the fixed pattern is formed as shown in FIG. 2A. The optical element 170 is disposed downstream of the optical path of the light valve 150 and allows at least a portion of the first image light with the fixed image M11 to pass. The projection lens 180 is located downstream of the optical path of the optical element 170, and can project a fixed image M11 in the first image light passing through the optical element 170 to an imaging surface (for example, a screen or a ground). Similarly, the light source 120 emits a light beam L12, which then sequentially passes through the optical element group 140 to reach the optical path of the optical element group 140. Light valve 150. After the light beam L12 passes through the fixed pattern of the light valve 150, the second image light having the fixed image M12 corresponding to the fixed pattern is formed, as shown in FIG. 2A. The optical element 170 is disposed downstream of the optical path of the light valve 150 and allows at least a portion of the second image light to pass therethrough. The projection lens 180 is located downstream of the optical path of the optical element 170, and can project a fixed image M12 of the second image light passing through the optical element 170 to an imaging surface (for example, a screen or a ground) and substantially overlaps the fixed image M11. As shown in FIG. 2C, the projection lens 180 projects the fixed images M11 and M12 onto the screen or the ground to form a projected image. In addition, the fixed patterns of the light sources 110, 120 and the light valve 150 and the fixed pattern of the light valve 160 may be the same or different, so that the colors of the corresponding fixed images M11 and M12 are the same or different. In application, the light sources 110 and 120 can be selectively illuminated simultaneously or separately to produce fixed images M11 and M12, respectively or simultaneously. It should be noted that in this example, since the color separation film is used, the fixed images M11 and M12 need to be different colors.

In this example, the color of the fixed image M11 is determined by its corresponding light source 110. In this example, the light source 110 outputs a single light color light beam L11 of red light, which is converted into a red light image having a gray gradient after passing through the light valve 150. The green light of the light source 120 is also operated in a similar manner. When the light sources 110 and 120 are simultaneously turned on, the color where the fixed images M11 and M12 overlap is a combination of red light and green light, which is used for light mixing, and thus is an example.

As described above, the optical element 170 of the present embodiment is simultaneously disposed downstream of the optical paths of the light valves 150 and 160, and allows the light beam L11 to pass but reflects the light beam L12 to The lens 180 is projected so that two fixed images from different beams (light paths) can be combined into one projected image.

Second embodiment

Please refer to FIGS. 3 and 4A-4C. FIG. 3 is a schematic diagram of the welcome lamp 200 according to the second embodiment of the present invention, and FIGS. 4A-4C illustrate a plurality of images projected by the welcome lamp 200 of FIG. Schematic diagram.

The welcome light 200 can be installed in the rearview mirror or side skirt of the car to illuminate the ground, and the ground illumination range can present various images. The welcome lamp 200 can also be installed in a place other than a vehicle such as a ceiling or a wall.

The welcome lamp 200 includes a light source 210 (such as a first light source), a light source 220 (such as a second light source), an optical component group 230, an optical component group 240, a light valve 250 (such as a first light valve), and a light valve 260 (such as a second Light valve), optical element 270 (such as third optical element), projection lens 280, polarization element 290, and polarization element 295.

In the present embodiment, the design of the light sources 210, 220 is similar to the design of the light sources 110, 120. In addition, the polarities of the light sources 210, 220 may be the same or different. However, in this example, unlike the light sources 210 and 220 in the previous example, the light sources 210 and 220 may output light of the same color, such as white light, in this example.

In the present embodiment, the design of the optical element sets 230 and 240 is similar to the design of the optical element sets 130, 140. In this example, the optical element groups 230 and 240 respectively include two lenses having positive diopter, which respectively converge or condense the light beam.

In the present embodiment, the design of the light valves 250, 260 is similar to the light valves 150, 160. The color of the fixed pattern on the light valves 250, 260 may be different or phase The same. In this example, the light valves 250 and 260 are a projection sheet, and the projection sheets are respectively provided with different fixed patterns, and the colors of the fixed patterns may be uniform or different. The filter layer on the fixed pattern has the ability to filter light of different colors.

In the present embodiment, the design of optical element 270 is similar to optical element 170. In this example, optical element 270 is a polarization beam splitter (PBS) that allows P-polarized light to pass through and reflect S-polarized light.

In this example, the projection lens 280 is similar to the projection lens 180.

In the present embodiment, the polarizing elements 290, 295 are all one type of optical elements. The polarizing elements 290, 295 can be, for example, polarizers, various (for example, 1/2 or 1/4) Wave plates, polarizing prisms, polarizing beam splitting cubes, etc. element. In this example, the polarizing element 290 is a polarizer, and the polarizer can allow light of a specific polarization direction to pass through, and can reflect or absorb light of another polarization direction, for example, passing the P-polarized light. Polarizing element 295 is similar to polarizing element 290 except that it allows the S-polarized state of the beam to split.

As shown in FIG. 3, the light source 210 is used to emit a light beam L21. The optical element group 230 is used to pass the light beam L21. The polarizing element 290 is disposed upstream of the optical path of the optical element 270, for example, upstream of the light valve 250. After the light beam L21 passes through the polarizing element 290, the polarizing element 290 allows the P-polarized state of the light beam L21 to be split. The light valve 250 is disposed downstream of the optical path of the polarizing element 290 and the optical element group 230. After the P-polarized state of the light beam L21 is split through the fixed pattern of the light valve 250, a fixed image M21 corresponding to the fixed pattern is formed, as shown in FIG. 4A. The optical element 270 is disposed downstream of the optical path of the light valve 250 and allows the fixed image M21 (which belongs to the P-polarized state to be split) to pass. Projection lens 280 is located in light Downstream of the optical path of element 270, a fixed image M21 through optical element 270 can be projected onto the screen or the ground.

As shown in FIG. 3, the light source 220 is used to emit a light beam L22. The optical element group 240 is used to pass the light beam L22. The polarizing element 295 is provided upstream of the optical path of the optical element 270, for example, upstream of the light valve 260. After the light beam L22 passes through the polarizing element 295, the polarizing element 295 allows the S-polarized state of the light beam L22 to be split. The light valve 260 is disposed downstream of the optical path of the polarizing element 295 and the optical element group 240. After the S polarization state of the light beam L22 is split through the fixed pattern of the light valve 260, a fixed image M22 corresponding to the fixed pattern is formed, as shown in FIG. 4B. The optical element 270 is disposed downstream of the optical path of the light valve 260 and reflects the fixed image M22 (which belongs to the S polarization state). Projection lens 280 is located downstream of the optical path of optical element 270 and can project a fixed image M22 through optical element 270 onto the screen or the ground.

As shown in FIG. 4C, the projection lens 280 can project the fixed images M21 and M22 onto the screen or the ground to form a projected image. In addition, the fixed pattern of the light valve 250 and the fixed pattern of the light valve 260 may be different, so that the corresponding fixed images M21 and M22 are different. In another embodiment, the fixed pattern of the light valve 250 and the fixed pattern of the light valve 260 may be the same. In other embodiments, only one of the light sources 210 and 220 emits a beam of light to produce only one of the fixed images M21 and M22. Since the light is split by the polarization state, the colors of the fixed images M21 and M22 can be the same.

As described above, the optical element 270 of the present embodiment is simultaneously disposed downstream of the optical paths of the light valves 250 and 260, and allows the light beam L21 to pass but reflects the light beam L22 to The lens 280 is projected so that two fixed images from different beams (light paths) can be combined into one projected image.

In summary, although the present invention has been disclosed above by way of example, it is not intended to limit the present invention. Those of ordinary skill in the art to which the present invention pertains can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this new type is subject to the definition of the scope of the patent application.

Claims (10)

A welcoming lamp includes: a first light source; a second light source; a first slide film disposed downstream of the light path of the first light source; and a second slide film disposed downstream of the light path of the second light source; a color chip disposed downstream of the optical path of the first and second projections, wherein the color separation film allows a first color light beam to pass through and reflects a second color light beam; and a projection lens is disposed in the color The light path of the color film is downstream. The welcoming lamp of the first aspect of the invention, wherein the first slide is a first light valve and has a fixed pattern; the second slide is a second light valve, and is provided with a fixed pattern. The color separation sheet is a third optical element, the first color light beam is a first light beam, and the second color light beam is a second light beam. A welcome lamp comprising: a first optical element for allowing a first light beam to pass; a second optical element for allowing a second light beam to pass; a first light valve having a fixed pattern, the first light a valve is disposed downstream of the optical path of the first optical component; a second light valve is provided with a fixed pattern, the second light valve is disposed downstream of the optical path of the second optical component; a third optical element is disposed downstream of the optical paths of the first light valve and the second light valve, the third optical element allows the first light beam to pass through and reflects the second light beam; and a projection lens is disposed at the The optical path of the third optical element is downstream. The welcoming lamp of claim 3, further comprising: a light source disposed at the optical upstream of the first optical element and the second optical element. The welcoming lamp of claim 3, further comprising: a first light source disposed upstream of the optical component of the first optical component; and a second light source disposed upstream of the optical component of the second optical component. The welcoming lamp of any one of claims 4 or 5, wherein the first optical element and the second optical element are respectively a polarizing element, and the third optical element is a polarized beam splitting Device. The welcoming lamp of claim 6, wherein the first optical component is disposed upstream of the optical path of the third optical component, and the first optical component is a polarizer, allowing a first polarization state to be split. Passing; the second optical element is disposed upstream of the optical path of the third optical element, the second optical element is a polarizer, allowing a second polarization state to pass; the third optical element is a polarized beam splitting The polarized beam splitter allows the splitting of the first polarization state to pass and reflect the splitting of the second polarization state. The welcoming lamp of claim 3, wherein the first optical element and the second optical element are respectively a lens, and the third optical element is a dichroic beam splitter. The welcoming lamp of any one of the preceding claims, wherein the first light valve and the second light valve do not consume electrical energy in converting the illumination light into image light. A welcome lamp as claimed in any one of the preceding claims, wherein the fixed pattern on the first light valve is different from the fixed pattern on the second light valve.