Lens assembly, vehicle lamp module, vehicle lamp and vehicle

• Main Authors: YANG JUEJING, HUANG HUI, NIU LEI
• Format: Patent
• Language: Chinese; English
• Published: 08.07.2022
• Subjects: BLASTING; HEATING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO USESOR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS; LIGHTING; MECHANICAL ENGINEERING; NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WEAPONS

The invention relates to an optical element, and discloses a lens assembly which comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens which are sequentially arranged. The first lens is a concave lens, the second lens is a convex lens, and the lens incident surface and the lens emergent surface of the third lens are rotational symmetry surfaces; the lens incident surface of the fourth lens and the lens incident surface of the fifth lens are curved surfaces which are recessed towards respective light emitting surfaces, the lens light emitting surface of the fourth lens is a curved surface which is recessed towards the lens incident surface, and the lens incident surfaces of the fourth lens and the fifth lens are arranged to have different curvatures in the meridian plane and the sagittal plane; the magnification of the lens assembly in the meridian plane is smaller than the magnification of the lens assembly in the sagittal plane. The invention further discloses a vehicle lamp mod