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CN-224229829-U - Dynamic projection lamp with iris diaphragm for vehicle

CN224229829UCN 224229829 UCN224229829 UCN 224229829UCN-224229829-U

Abstract

The utility model relates to the technical field of projection equipment, in particular to an automotive iris dynamic projection lamp which comprises a control driver, a light source, a condenser lens, an iris diaphragm, a pattern film and an imaging lens group, wherein the light source, the condenser lens, the iris diaphragm, the pattern film and the imaging lens group are sequentially arranged from back to front, light rays emitted by the light source can sequentially pass through the condenser lens, the iris diaphragm, the pattern film and the imaging lens group, the light source and the condenser lens are arranged at intervals, the pattern film and the imaging lens group are arranged at intervals, a focal plane of the imaging lens group is positioned on the pattern film, and the control driver is connected with the light source and the iris diaphragm.

Inventors

  • CHEN XUDONG

Assignees

  • 陈旭东

Dates

Publication Date
20260512
Application Date
20250708

Claims (9)

  1. 1. The utility model provides a vehicle iris dynamic projection lamp, its characterized in that, including control driver (6) and light source (1), condenser lens (2), iris (3), pattern film (4) and imaging lens group (5) that set gradually before to from the back, light that light source (1) sent can pass in proper order condenser lens (2) iris (3) pattern film (4) with imaging lens group (5), light source (1) with condenser lens (2) interval sets up, pattern film (4) with imaging lens group (5) interval sets up, the focal plane of imaging lens group (5) is located pattern film (4), control driver (6) connect in light source (1) with iris (3).
  2. 2. The automotive iris dynamic projection lamp according to claim 1, wherein the condenser lens (2) and the pattern film (4) are arranged at intervals.
  3. 3. The automotive iris dynamic projection lamp according to claim 1, wherein the pattern film (4) and the iris (3) are arranged at intervals.
  4. 4. The automotive iris dynamic projection lamp according to claim 1, further comprising a housing (7), wherein a mounting cavity (71) is provided in the housing (7), the mounting cavity (71) comprises a first cavity (711), a second cavity (712), a third cavity (713) and a fourth cavity (714) which are sequentially communicated from back to front, a projection hole (72) penetrating through the fourth cavity (714) is provided in the front side of the housing (7), the light source (1) is provided in the first cavity (711), the condenser lens (2) is provided in the first cavity (711) and the second cavity (712), the iris diaphragm (3) is provided in the third cavity (713), and the pattern film (4) and the imaging lens group (5) are provided in the fourth cavity (714).
  5. 5. The variable aperture dynamic projection lamp for a vehicle according to claim 4, wherein the light source (1) is mounted on a rear surface of the first cavity (711), the condenser lens (2) is mounted on a front surface of the first cavity (711) and protrudes from the second cavity (712), and the variable aperture (3) is mounted on a rear surface of the third cavity (713).
  6. 6. The vehicle iris dynamic projection lamp according to claim 4, wherein the housing (7) comprises a PCB (73), a first shell (74) and a second shell (75) which are sequentially arranged from back to front, the PCB (73) is covered on the rear side surface of the first shell (74) and encloses the first cavity (711) with the first shell (74), the second cavity (712) is arranged in the first shell (74), the first shell (74) and the second shell (75) enclose the third cavity (713), and the fourth cavity (714) and the projection hole (72) are arranged in the second shell (75).
  7. 7. The vehicle iris dynamic projection lamp according to claim 1, wherein the condenser lens (2) is a convex lens, a fresnel lens or a reflective cup.
  8. 8. The iris dynamic projection lamp for vehicles according to claim 1, wherein the iris (3) is a segment-type liquid crystal panel, a dot matrix type liquid crystal panel, an electro-mechanical micromirror or a member having electro-mechanical micro-holes.
  9. 9. The vehicle iris dynamic projection lamp according to claim 1, wherein the central axes of the light source (1), the condenser lens (2), the iris (3), the pattern film (4) and the imaging lens are arranged in a superposed manner.

Description

Dynamic projection lamp with iris diaphragm for vehicle Technical Field The utility model relates to the technical field of projection equipment, in particular to a dynamic projection lamp of an iris diaphragm for a vehicle. Background A projector is a projection device that projects images, patterns, or characters onto various surfaces by optical principles, and can be installed in a vehicle (such as the inner wall of a door and a position beside a rearview mirror) to create an atmosphere in the vehicle and decorate a scene in the vehicle. The projection lamp has certain defects, so that the projection effect is not good enough, as in a micro-lens array projection system disclosed in the publication No. CN218003912U, in the technical scheme disclosed by the publication, light rays start from a light source and sequentially pass through a lens, a light control pattern carrier (photoetching mask) and a diaphragm, wherein the light rays converged by the lens are directly irradiated onto the light control pattern carrier, the illumination uniformity of the surface of the light control pattern carrier completely depends on the condensing effect of a convex lens, the aperture of an emergent light beam of the diaphragm can be limited, the condition that the light control pattern carrier is unevenly irradiated cannot be improved, the brightness difference between the center and the edge of a projection image is increased, further, stray light rays are firstly irradiated onto the light control pattern carrier and are mixed with effective light rays and then filtered, the stray light rays can influence the pattern of the light control pattern carrier, even if the diaphragm intercepts the light rays, the generated contrast loss cannot be eliminated, and the light rays emitted by the lens can also cover the light control pattern carrier, at the moment, if the light beam coverage is too large, the diaphragm can directly cut the effective light rays at the edge of the light control pattern carrier, and the edge of the projection image is cut off. Disclosure of utility model The utility model aims to provide a dynamic projection lamp of an automotive iris diaphragm, which aims to solve the technical problem that the projection effect of the dynamic projection lamp of the automotive iris diaphragm is not good enough. In order to achieve the above purpose, the utility model provides a dynamic projection lamp of an iris for a vehicle, which comprises a control driver, and a light source, a condenser lens, an iris, a pattern film and an imaging lens group which are sequentially arranged from back to front, wherein light rays emitted by the light source can sequentially pass through the condenser lens, the iris, the pattern film and the imaging lens group, the light source and the condenser lens are arranged at intervals, the pattern film and the imaging lens group are arranged at intervals, a focal plane of the imaging lens group is positioned on the pattern film, and the control driver is connected with the light source and the iris. Optionally, the condensing lens and the pattern film are arranged at intervals. Optionally, the pattern film and the iris diaphragm are arranged at intervals. Optionally, the device further comprises a shell, wherein an installation cavity is arranged in the shell, the installation cavity comprises a first cavity, a second cavity, a third cavity and a fourth cavity which are sequentially communicated from back to front, a projection hole penetrating through the fourth cavity is formed in the front side face of the shell, the light source is arranged in the first cavity, the condensing lens is arranged in the first cavity and the second cavity, the iris diaphragm is arranged in the third cavity, and the pattern film and the imaging lens group are arranged in the fourth cavity. Optionally, the light source is mounted on a rear cavity surface of the first cavity, the condensing lens is mounted on a front cavity surface of the first cavity and protrudes out of the second cavity, and the iris diaphragm is mounted on a rear cavity surface of the third cavity. Optionally, the casing includes from the back to preceding PCB board, first shell and the second shell that sets gradually, the PCB board lid is located the trailing flank of first shell, and with first shell encloses into first chamber, the second chamber is located in the first shell, first shell with the second shell encloses into the third chamber, the fourth chamber with the projection hole is located the second shell. Optionally, the condensing lens is a convex lens, a fresnel lens or a reflective cup. Optionally, the iris diaphragm is a segment-type liquid crystal screen, a dot-matrix type liquid crystal screen, an electromechanical micromirror or a component with electromechanical micropores. Optionally, central axes of the condensing lens, the iris diaphragm, the pattern film and the imaging lens are overlapped. Compared with the prior