# US 2023/0276554 A1 · Stage light fixture with optical parameter detection function > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0276554 A1 - Document ID: US20230276554A1 - Status: Published application - Kind: A1 - Application number: 18/149,010 - Filed: 2022-12-30 - Published: 2023-08-31 - Earliest claimed: 2022-02-28 - Assignees: Guangzhou Haoyang Electronic Co., Ltd. - Applicants: Guangzhou Haoyang Electronic Co., Ltd. - Inventors: Weikai JIANG - Web page: https://patentgrep.com/patent/US20230276554A1 ## CPC - H05B 47/105: in response to determined parameters - F21S 10/00: Lighting devices or systems producing a varying lighting effect - F21V 5/008: {Combination of two or more successive refractors along an optical axis} - F21V 13/04: the elements being reflectors and refractors {(for vehicle rear lights F21S43/40)} - F21V 14/04: by movement of reflectors {(in vehicle head lamps F21S41/675)} - F21V 17/02: with provision for adjustment (F21V17/04 - F21V17/08 take precedence) - F21V 21/30: Pivoted housings or frames - F21V 23/00: Arrangement of electric circuit elements in or on lighting devices {(characterised by cooling arrangements F21V29/508)} - F21V 23/0457: {the sensor sensing the operating status of the lighting device, e.g. to detect failure of a light source or to provide feedback to the device} - F21V 33/00: Structural combinations of lighting devices with other articles, not otherwise provided for - G01M 11/02: Testing optical properties - F21V 2200/00: Use of light guides, e.g. fibre optic devices, in lighting devices or systems - F21W 2131/406: for theatres, stages or film studios - F21Y 2115/10: Light-emitting diodes [LED] - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - 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 - G01M: TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, 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 stage light fixture with an optical parameter detection function includes a light head, a supporting arm and a case. A light source for generating a light path, a light guiding member for guiding light to deviate from the light path, and an optical parameter detector are provided in the light head. The light guiding member can be freely switched into/out of the light path via a driving mechanism. The optical parameter detector can receive and detect the light guided out by the light guiding member. According to the present invention, the light guiding member can be switched into the light path to guide the light to the optical parameter detector for detection, only when the stage light fixture is started to work, or detection is performed at an interval between operations of the stage light fixture, while switched out of the light path when in operation. ## Claims ### Claim 1 A stage light fixture with an optical parameter detection function, comprising a light head, a supporting arm for supporting the light head to rotate, and a case for supporting the supporting arm to rotate, wherein a light source for generating a light path, a light guiding member for guiding light to deviate from the light path, and an optical parameter detector are provided in the light head, the light guiding member is configured to freely switch into/out of the light path via a driving mechanism, and the optical parameter detector is configured to receive and detect a light guided out by the light guiding member. ### Claim 2 (depends on 1) The stage light fixture according to claim 1, wherein the light guiding member is a reflecting mirror. ### Claim 3 (depends on 2) The stage light fixture according to claim 2, wherein the reflecting mirror is in form of a reflecting bowl, which focuses the light reflected on the optical parameter detector. ### Claim 4 (depends on 2) The stage light fixture according to claim 2, wherein the reflecting mirror is performed diffuse reflection. ### Claim 5 (depends on 1) The stage light fixture according to claim 1, wherein when the light guiding member is switched into the light path, the light guiding member is located close to a focal point of the light path emitted by the light source, and all light in the light path are guided to the optical parameter detector by the light guiding member. ### Claim 6 (depends on 1) The stage light fixture according to claim 1, wherein when the light guiding member is switched into the light path, part of light in the light path are guide to the optical parameter detector by the light guiding member. ### Claim 7 (depends on 6) The stage light fixture according to claim 6, wherein the light guiding member is driven to move in the light path by the driving mechanism, and during movement of the light guiding member, the optical parameter detector is always kept receiving the light guided by the light guiding member. ### Claim 8 (depends on 1) The stage light fixture according to claim 1, wherein the light guiding member is a CMY assembly. ### Claim 9 (depends on 1) The stage light fixture according to claim 1, wherein a focusing lens, a magnifying lens and a light emitting lens are further successively provided in the light head along the light emitting direction of the light source. ### Claim 10 (depends on 1) The stage light fixture according to claim 1, wherein optical parameters detected by the optical parameter detector include at least one of an illumination intensity, a color, a color temperature, a color rendering index and a blue light intensity. ### Claim 11 (depends on 1) The stage light fixture according to claim 1, wherein the light guiding member is a light guide.