Abstract: Among others, the present invention provides for beta-hydroxybutyrate (e.g., R—BHB) acids and/or salts with pure biobased carbon content (e.g., 100% as measured by Carbon-14 analysis). The present invention also provides methods for preparing beta-hydroxybutyrate (e.g., R—BHB) acid and salt with pure biobased carbon content, comprising chemical synthesis and/or biosynthesis process. For instance, the method may include biological fermentation, and/or bioenzymatic process.

Abstract: A method for assembling an optical lens includes preparing a first lenses part including a first lens and a second lenses part including a second lens, capturing the first lenses part, and adjusting a posture of the first lenses part according to a distance measurement result, so that an included angle between a first end surface of the first lenses part and a second end surface of the second lenses part is less than a threshold of inclination angle. The method also includes adjusting the first lenses part at degree of freedom of linear movement to complete pre-positioning, performing an active alignment of a position of the first lenses part at the degree of freedom of linear movement according to an actual imaging result, and fixing the first and second lenses parts together, so that their relative positions are maintained at the relative positions determined by the active alignment.

Abstract: The present invention provides a method for assembling a camera module, including: preparing a first sub-lens assembly and a second sub-assembly, wherein the second sub-assembly includes a second sub-lens assembly and a photosensitive assembly fixed together; arranging the first sub-lens assembly on an optical axis of the second sub-lens assembly to form an optical system capable of imaging; adjusting a relative position of the first sub-lens assembly with respect to the second sub-lens assembly, so as to increase an actual measured resolution of imaging of the optical system, obtained by using the photosensitive element, to a first threshold, and decrease an actual measured image plane inclination obtained by using the photosensitive element to a second threshold; and connecting the first sub-lens assembly and the second sub-lens assembly. The present invention further provides a corresponding camera module.

Abstract: Provided is a lens assembly, which comprises: a first optical lens module, comprising a first carrier and at least one first optical lens received in the first carrier; and a second optical lens module, comprising a second carrier, at least one second optical lens received in the second carrier, and a bearing portion connected to the second carrier. A lower end portion of the first carrier extends to the bearing portion, so as to constrain the relative positions of the first optical lens module and the second optical lens module.

Abstract: A multi-group lens assembly (10), a camera module (100), and an electronic device (200) therefore are provided. The multi-group lens assembly (10) includes at least two group units (11 and 12). At least a first gap (15) is provided between the at least two adjacent group units (11 and 12) to compensate a difference between the multi-group lens assembly (10) and an optical design system, thus allowing an optical system of the multi-group lens assembly conform to the optical design system of the present invention.

Abstract: A multi-group lens assembly (10), a camera module (100), and an electronic device (200) therefore are provided. The multi-group lens assembly (10) includes at least two group units (11 and 12). At least a first gap (15) is provided between the at least two adjacent group units (11 and 12) to compensate a difference between the multi-group lens assembly (10) and an optical design system, thus allowing an optical system of the multi-group lens assembly conform to the optical design system of the present invention.

Abstract: The present invention provides a method for assembling a camera module, including: preparing a first sub-lens assembly and a second sub-assembly, wherein the second sub-assembly includes a second sub-lens assembly and a photosensitive assembly fixed together; arranging the first sub-lens assembly on an optical axis of the second sub-lens assembly to form an optical system capable of imaging; adjusting a relative position of the first sub-lens assembly with respect to the second sub-lens assembly, so as to increase an actual measured resolution of imaging of the optical system, obtained by using the photosensitive element, to a first threshold, and decrease an actual measured image plane inclination obtained by using the photosensitive element to a second threshold; and connecting the first sub-lens assembly and the second sub-lens assembly. The present invention further provides a corresponding camera module.

Abstract: A multi-group lens assembly (10), a camera module (100), and an electronic device (200) therefore are provided. The multi-group lens assembly (10) includes at least two group units (11 and 12). At least a first gap (15) is provided between the at least two adjacent group units (11 and 12) to compensate a difference between the multi-group lens assembly (10) and an optical design system, thus allowing an optical system of the multi-group lens assembly conform to the optical design system of the present invention.

Abstract: The present invention provides a method for assembling a camera module, including: preparing a first sub-lens assembly and a second sub-assembly, wherein the second sub-assembly includes a second sub-lens assembly and a photosensitive assembly fixed together; arranging the first sub-lens assembly on an optical axis of the second sub-lens assembly to form an optical system capable of imaging; adjusting a relative position of the first sub-lens assembly with respect to the second sub-lens assembly, so as to increase an actual measured resolution of imaging of the optical system, obtained by using the photosensitive element, to a first threshold, and decrease an actual measured image plane inclination obtained by using the photosensitive element to a second threshold; and connecting the first sub-lens assembly and the second sub-lens assembly. The present invention further provides a corresponding camera module.

Abstract: Provided is a lens assembly, which comprises: a first optical lens module, comprising a first carrier and at least one first optical lens received in the first carrier; and a second optical lens module, comprising a second carrier, at least one second optical lens received in the second carrier, and a bearing portion connected to the second carrier. A lower end portion of the first carrier extends to the bearing portion, so as to constrain the relative positions of the first optical lens module and the second optical lens module.

Abstract: An assembly device for an optical assembly comprises: a grasping mechanism (310) configured to grasp a first sub-lens to be assembled, and to move the grasped first sub-lens in multiple degrees of freedom; a first fixing mechanism (320) configured to fix a second sub-lens to be assembled, wherein the grasping mechanism (310) is movable relative to the first fixing mechanism (320), so that the first sub-lens and the second sub-lens form an optical system capable of imaging; a second fixing mechanism (330) configured to fix a photosensitive assembly; a data acquiring assembly (340) configured to be electrically connected to the photosensitive assembly fixed by the fixing mechanism (330) and acquire image data output by the photosensitive assembly; and a material connecting assembly (210) configured to fix the first and second sub-lenses together.

Abstract: A camera lens module includes a lens assembly. The lens assembly may comprise a first optical lens module comprising a first carrier and at least one first optical lens received in the first carrier; and a second optical lens module comprising a second carrier, at least one second optical lens received in the second carrier, and a bearing portion connected to the second carrier. When the first optical lens module and the second optical lens module are assembled together, an adjustable clearance exists between the first carrier and the bearing portion, and between bottom surfaces of the first carrier and a lowermost lens of the first optical lenses and a top surface of an uppermost lens of the second optical lenses.

Abstract: A method for assembling an optical lens includes preparing a first lenses part including a first lens and a second lenses part including a second lens, capturing the first lenses part, and adjusting a posture of the first lenses part according to a distance measurement result, so that an included angle between a first end surface of the first lenses part and a second end surface of the second lenses part is less than a threshold of inclination angle. The method also includes adjusting the first lenses part at degree of freedom of linear movement to complete pre-positioning, performing an active alignment of a position of the first lenses part at the degree of freedom of linear movement according to an actual imaging result, and fixing the first and second lenses parts together, so that their relative positions are maintained at the relative positions determined by the active alignment.

Abstract: The present disclosure discloses a method for compensating for image quality of an optical system by means of a lens adjustment, applicable to a camera module comprising an adjustable lens or an adjustable lens set, the method comprising the following steps: (A) determining, based on imaging information of a to-be-adjusted optical system, parameters that need to be adjusted for compensating for the image quality; (B) establishing functions of relation between the parameters that need to be adjusted for compensating for the image quality and a to-be-adjusted lens factors; and (C) determining an adjustment mode and an adjustment amount for the to-be-adjusted lens based on the relation between the parameters that need to be adjusted for compensating for the image quality and the to-be-adjusted lens factors.

Abstract: An assembly device for an optical assembly comprises: a grasping mechanism (310) configured to grasp a first sub-lens to be assembled, and to move the grasped first sub-lens in multiple degrees of freedom; a first fixing mechanism (320) configured to fix a second sub-lens to be assembled, wherein the grasping mechanism (310) is movable relative to the first fixing mechanism (320), so that the first sub-lens and the second sub-lens form an optical system capable of imaging; a second fixing mechanism (330) configured to fix a photosensitive assembly; a data acquiring assembly (340) configured to be electrically connected to the photosensitive assembly fixed by the fixing mechanism (330) and acquire image data output by the photosensitive assembly; and a material connecting assembly (210) configured to fix the first and second sub-lenses together.

Abstract: A method for assembling a camera module includes arranging a first sub-lens assembly and a photosensitive assembly on an optical axis of a second sub-lens assembly to form an optical system capable of imaging. The method includes increasing an actual measured resolution of imaging of the optical system to a first threshold by adjusting a relative position of the first sub-lens assembly with respect to the second sub-lens assembly. The method includes decreasing an actual measured image plane inclination of imaging of the optical system, obtained by using the photosensitive element, to a second threshold by adjusting an angle of an axis of the photosensitive assembly with respect to a central axis of the second sub-lens assembly. The method includes connecting the first sub-lens assembly, the second sub-lens assembly, and the photosensitive assembly. A corresponding camera module is also included.

Abstract: A camera lens module includes a lens assembly. The lens assembly may comprise a first optical lens module comprising a first carrier and at least one first optical lens received in the first carrier; and a second optical lens module comprising a second carrier, at least one second optical lens received in the second carrier, and a bearing portion connected to the second carrier. When the first optical lens module and the second optical lens module are assembled together, an adjustable clearance exists between the first carrier and the bearing portion, and between bottom surfaces of the first carrier and a lowermost lens of the first optical lenses and a top surface of an uppermost lens of the second optical lenses.

Abstract: The present disclosure discloses a method for compensating for image quality of an optical system by means of a lens adjustment, applicable to a camera module comprising an adjustable lens or an adjustable lens set, the method comprising the following steps: (A) determining, based on imaging information of a to-be-adjusted optical system, parameters that need to be adjusted for compensating for the image quality; (B) establishing functions of relation between the parameters that need to be adjusted for compensating for the image quality and a to-be-adjusted lens factors; and (C) determining an adjustment mode and an adjustment amount for the to-be-adjusted lens based on the relation between the parameters that need to be adjusted for compensating for the image quality and the to-be-adjusted lens factors.

Abstract: A camera lens module includes a lens assembly. The lens assembly may comprise a first optical lens module comprising a first carrier and at least one first optical lens received in the first carrier; and a second optical lens module comprising a second carrier, at least one second optical lens received in the second carrier, and a bearing portion connected to the second carrier. When the first optical lens module and the second optical lens module are assembled together, an adjustable clearance exists between the first carrier and the bearing portion, and between bottom surfaces of the first carrier and a lowermost lens of the first optical lenses and a top surface of an uppermost lens of the second optical lenses.

Abstract: The present disclosure discloses a method for compensating for image quality of an optical system by means of a lens adjustment, applicable to a camera module comprising an adjustable lens or an adjustable lens set, the method comprising the following steps: (A) determining, based on imaging information of a to-be-adjusted optical system, parameters that need to be adjusted for compensating for the image quality; (B) establishing functions of relation between the parameters that need to be adjusted for compensating for the image quality and a to-be-adjusted lens factors; and (C) determining an adjustment mode and an adjustment amount for the to-be-adjusted lens based on the relation between the parameters that need to be adjusted for compensating for the image quality and the to-be-adjusted lens factors.