5results about How to "Total length" patented technology

The invention provides an optical lens, which comprises five lenses from an exit pupil side to an image source side along an optical axis: a diaphragm; the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface; the object side surface of the second lens is a convex surface, and the image side surface of the second lens is a concave surface; the object side surface of the third lens is a convex surface, and the image side surface of the third lens is a concave surface; the fourth lens has negative focal power, and the object side surface of the fourth lens is a concave surface; and the object side surface of the fifth lens is a convex surface, and the image side surface of the fifth lens is a concave surface. The optical lens achieves the effects of small size, light weight, total length and large aperture.

The utility model discloses an infrared optical system and vehicle -mounted camera lens, wherein, infrared optical system includes: the first lens with negative focal length and glass spherical surface that is arranged in proper order from object side to image side along the optical axis, the second lens with positive or negative focal length and plastic aspheric surface, diaphragm, the third lens with positive focal length and glass spherical surface and the fourth lens with positive or negative focal length and plastic aspheric surface. Through adopting 2G2P's technical scheme, namely adopting the mode of glass plastic combination, and the focal length of reasonable distribution each lens, can well correct aberration, guarantee enough good image quality, and stable high low temperature resolving, wherein, the total length of optical system is less than 9.4mm, and the image surface diameter can reach 4.8mm, and FOV can reach 64 DEG, and further, the total length of the vehicle -mounted camera lens is short, and the volume is small, and the field of view is big, has good commercial value.

The utility model relates to a kind of 10 feet container special transport semitrailer and mobile energy storage system.The 10 feet container special transport semitrailer includes frame main body and four locking appliances, and connecting main body and wheel set.Frame main body is used to carry 10 feet container.Four locking appliances are set at the position of the four corner fittings corresponding to the bottom of 10 feet container of frame main body.The rear end of connecting main body is connected with frame main body, and the front end is equipped with towing pin.The top surface of frame main body is lower than the top surface of connecting main body.Wheel set is set to the bottom of frame main body and is close to the rear end of frame main body.The distance from the rotation axis of wheel set to towing pin is greater than or equal to 4200mm, and the distance from the rear end surface of frame main body to the front end surface of connecting main body is less than or equal to 5600mm.The total length of the semitrailer is shorter, and the mobile transportation of single 10 feet container can be realized, the amplitude generated by road bump to 10 feet container is reduced, and the transportation safety of container is improved.

The invention discloses an optical system, a pick-up lens and an electronic device, and aims to realize lightening and thinning and shorter total length of the optical system and improve the pixel and imaging quality of the optical system. The optical system sequentially comprises a diaphragm, a first lens with positive focal power, a second lens with negative focal power, a third lens with focal power, a fourth lens with focal power, a fifth lens with focal power, a sixth lens with positive focal power and a seventh lens with negative focal power from an object side to an image side along an optical axis, the object side surface of the first lens, the object side surface of the second lens, the image side surface of the third lens, the image side surface of the fifth lens and the object side surface of the sixth lens are convex surfaces in a paraxial region. The image side surface of the first lens, the image side surface of the second lens, the object side surface of the third lens, the object side surface of the fifth lens, the image side surface of the sixth lens, and the object side surface and the image side surface of the seventh lens are concave surfaces at a paraxial region. The optical system satisfies the relational expression: 1.45 lt; fNOlt, FNOlt; 1.9, 79 degree lt; a FOVlt; the angle is 91 degrees, 1.2 lt; and TTL / ImgHlt; and 1.4.

The prime lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens which are sequentially arranged from an object plane to an image plane along an optical axis, the first lens is a negative-focal-power lens, the second lens is a negative-focal-power lens, the third lens is a positive-focal-power lens, the fourth lens is a positive-focal-power lens or a negative-focal-power lens, the fifth lens is a positive-focal-power lens, the sixth lens is a negative-focal-power lens, and the seventh lens is a positive-focal-power lens. The focal power of the second lens is phi 2, the focal power of the third lens is phi 3, the focal power of the fourth lens is phi 4, the focal power of the fifth lens is phi 5, the focal power of the sixth lens is phi 6, the focal power of the prime lens is phi, and phi 2 / phi is larger than or equal to-0.76 and smaller than or equal to-0.48. 0.32 < = phi 3 / phi < = 0.98; -0.56 < = phi 4 / phi < = 0.90; 0.32 < = phi 5 / phi < = 1.21; phi 6 / phi is not less than-0.35 and not less than-1.18; 0.16 < = phi 7 / phi < = 0.74. According to the technical scheme of the embodiment of the utility model, the design of the wide-angle prime lens with total length and good imaging quality can be realized.