# US 11,906,136 B1 · Projection lamp > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,906,136 B1 - Document ID: US11906136B1 - Status: Granted - Kind: B1 - Application number: 18/387,867 - Filed: 2023-11-08 - Granted: 2024-02-20 - Earliest claimed: 2023-11-08 - Assignees: Guangzhou Colorful Stage Equipment Co., Ltd - Applicants: Guangzhou Colorful Stage Equipment Co., Ltd - Inventors: Haiquan Pang; Kehua Tan; Minghua Yang - Web page: https://patentgrep.com/patent/US11906136B1 ## CPC - F21S 10/00: Lighting devices or systems producing a varying lighting effect - F21V 11/00: Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 (characterised by cooling arrangements F21V29/502) - F21V 5/008: {Combination of two or more successive refractors along an optical axis} - F21V 5/04: of lens shape - F21V 13/04: the elements being reflectors and refractors {(for vehicle rear lights F21S43/40)} - F21V 17/105: {using magnets} - F21W 2121/008: {for simulation of a starry sky or firmament} - F21Y 2113/10: of different colours - F21Y 2115/10: Light-emitting diodes [LED] - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - F21W: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS - F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED ## Abstract A projection lamp is provided, which includes a first shell assembly, a projection assembly and a light shielding member. The first shell assembly includes a transparent mask. The projection assembly includes an optical lens, an optical element, a light source and a driving source for driving the optical element to move. The optical element is positioned to direct light from the light source to the optical lens when the light source is powered. At least part of the light shielding member is disposed between the peripheral region of the transparent mask and the peripheral region of the optical lens. The light shielding member has a first opening, and the light from the light source only passes through the first opening of the light shielding member to emit out from the transparent mask after passing through the optical lens. ## Claims ### Claim 1 A projection lamp, comprising a head which comprises: a first shell assembly, comprising an opaque bottom shell and a transparent mask connected to the opaque bottom shell, the transparent mask comprising a central region and a peripheral region surrounding the central region; a projection assembly arranged in the first shell assembly, comprising an optical lens, an optical element, a light source and a driving source for driving the optical element to move, the optical lens comprising a central region and a peripheral region surrounding the central region, the optical element being positioned to direct light from the light source to the optical lens when the light source is powered; and a light shielding member, at least part of which is disposed between the peripheral region of the transparent mask and the peripheral region of the optical lens, the light shielding member having a first opening in a middle portion thereof so that the central region of the optical lens is aligned with the central region of the transparent mask, wherein the light from the light source only passes through the first opening of the light shielding member to emit out from the transparent mask after passing through the optical lens. ### Claim 2 (depends on 1) The projection lamp according to claim 1, wherein the central region of the optical lens is aligned with the first opening of the light shielding member and protrudes from the first opening of the light shielding member. ### Claim 3 (depends on 1) The projection lamp according to claim 1, wherein the optical element is a refractive element located between the light source and the optical lens, and the light from the light source passes through the refractive element and then emits to the optical lens. ### Claim 4 (depends on 1) The projection lamp according to claim 1, wherein the optical element is a reflective element, and the light from the light source is reflected from the reflective element to the optical lens. ### Claim 5 (depends on 1) The projection lamp according to claim 1, wherein the opaque bottom shell comprises a hemispherical first half shell and a second half shell connected to the first half shell, the second half shell has a second opening in a middle portion thereof, and the transparent mask protrudes from the second opening of the second half shell. ### Claim 6 (depends on 5) The projection lamp according to claim 5, wherein the light shielding member comprises an annular body, the annular body defines the first opening, and at least part of the annular body corresponds to the second opening of the second half shell and is located between the peripheral region of the transparent mask and the peripheral region of the optical lens. ### Claim 7 (depends on 6) The projection lamp according to claim 6, wherein the light shielding member further comprises two ears respectively connected to opposite sides of the annular main portion, and the two ears are connected to an inner wall of the second half shell. ### Claim 8 (depends on 5) The projection lamp according to claim 5, wherein one of the light shielding member and the second half shell is provided with a flange, and the other is provided with a groove engaging with the flange. ### Claim 9 (depends on 1) The projection lamp according to claim 1, further comprising a main body movably connected with the head. ### Claim 10 (depends on 9) The projection lamp according to claim 9, wherein the main body and the head are connected through a ball joint. ### Claim 11 (depends on 9) The projection lamp according to claim 9, wherein the first shell assembly has a through hole, the head further comprises a support arranged in the first shell assembly for supporting at least part of the projection assembly, a ball pin is provided on the main body, and the ball pin passes through the through hole and is movably connected to the support. ### Claim 12 (depends on 11) The projection lamp according to claim 11, wherein a damping member is further arranged between the ball pin and the support. ### Claim 13 (depends on 9) The projection lamp according to claim 9, further comprising a second shell assembly connected to the main body and a light-emitting component accommodated in the second shell assembly, the second shell assembly comprises a translucent shell, the light-emitting component comprises a circuit board and at least one lamp bead disposed on the circuit board, and light from the at least one lamp bead is emitted out through the translucent shell. ### Claim 14 (depends on 13) The projection lamp according to claim 13, wherein the at least one lamp bead comprises at least two LED lights with different colors. ### Claim 15 (depends on 1) The projection lamp according to claim 1, further comprising a main body which is detachably connected with the head by means of magnetic attraction. ### Claim 16 (depends on 15) The projection lamp according to claim 15, the main body comprises one or more magnets, the head comprises an iron sheet disposed within the first shell assembly, and the one or more magnets attracts the iron sheet.