38 results about "Lens fitting" patented technology

A lens barrel comprising bayonet type mount projections to detachably attach to a lens-fitting unit of a camera body having a photographic region, wherein mount projections are formed to avoid cross-section of light path area where object light is introduced in the camera body.

A spectacle lens frame shape measuring apparatus includes a holding device including upper pins and lower pins respectively holding upper rims and lower rims of frames for a spectacle lens, the upper pins holding the frames at different positions in a right-left direction from the positions at which the lower pins hold the frames and being placed at a same height as the lower pins in a vertical direction, a probe brought into contact with lens fitting grooves of the frames held by the holding device, a swinging mechanism swinging the holding device around a predetermined virtual axis, and a calculation controller calculating an axial shift amount or angle of the frames held by the holding device on the basis of a carved angle of the frames and an inclination angle of any one of the upper and lower rims, and correcting a shape of the frames obtained by the probe in accordance with the calculated axial shift amount or angle.

A lens accessory mounting device for mounting a lens accessory to a front end of a lens barrel, an outer diameter of the lens accessory being substantially the same as an outer diameter of the front end of the lens barrel, the lens accessory mounting device includes at least one inward bayonet lug which projects radially inwards from an inner peripheral surface of a front end of the lens barrel; and at least one outward bayonet lug which projects radially outwards from the lens accessory to be engageable with the two inward bayonet lugs, respectively. The outward bayonet lug is firstly inserted into the front end of the lens barrel and subsequently brought into engagement with the inward bayonet lug, respectively, when the lens accessory is mounted to the lens barrel.

The invention discloses a lens automatic mounting device and a method. The lens automatic mounting device comprises an ocular lens fitting a feeding mechanism, an ocular lens fitting b feeding mechanism, an ocular lens fitting b oil brushing mechanism, an ocular lens feeding mechanism, an ocular lens mounting mechanism, an ocular lens overturning and screw hitting mechanism, an anti-dazzling screen mounting mechanism, an ocular lens station transmission mechanism, an object lens fitting a feeding mechanism, an object lens fitting b feeding mechanism, an object lens fitting a oil brushing mechanism, a material distributing mechanism, an object lens feeding mechanism, an object lens mounting mechanism, an object lens station transmission mechanism, an object lens and ocular lens mounting mechanism, a double station screw hitting mechanism, and a product material recovering mechanism. The problem of the prior art is that the assembling process of the lens assembly is complicated and low in efficiency. By developing a set of fully-automatic assembling device, the automatic feeding, automatic assembling, automatic material blanking of the lens can be realized, and manual operations can be completely replaced. The precision and yield of lens assembling can be enhanced, and the assembling efficiency of lens can be greatly improved, and the usage demand of practical production can be met.

The invention relates to the technical field of lens accessories, in particular to a lens with an aperture away from a lens, comprising a positive lens, the center of which close to an object side surface is convex towards the object side, and the center of which close to an image side surface is convex towards the image side; the center, close to the object side surface, of the negative lens is convex towards the object side, and the center, close to the image side surface, of the negative lens is convex towards the image side; and the aperture diaphragm is used for controlling the light quantity of light entering the light-sensitive surface in the body through the lens. According to the design that the aperture is far away from the lens, compared with the design that the aperture is on the lens, the opening in the screen is much smaller than the opening in the screen of a traditional lens. Therefore, a small screen opening can be obtained, and the attractiveness is improved.

The invention discloses an optical lens accessory for panoramic image shooting, which is used in conjunction with the terminals of two camera devices, including: an optical device, including two fisheye lenses, which are arranged in a back-to-back manner, and the viewing angle directions are back-to-back, and the fisheye The viewing angle of the lens is greater than 180 degrees, and the viewing angles are taken from the respective viewing angle directions, and the viewing light is also introduced into the camera device; the housing device is arranged outside the optical device, does not interfere with the viewing angle range of the fisheye lens, supports the optical device, and connects the viewing light to the external Separation of non-framing light rays; fixtures for attaching optical lens accessories to the adapted terminal without interfering with the viewing angle range of the fisheye lens. Through the above method, the present invention can quickly realize the user's demand for panoramic shooting, greatly reduce the user's use cost, and improve the user's actual experience.

The invention discloses an optical lens accessory, which comprises a cylindrical body and an annular casing. Rotating shafts are arranged on the inner and outer sides of the outer wall of the cylindrical body, and the outer part of the rotating shaft is connected with a rotating gear through a second torsion spring. And the positions on both sides of the rotating gear are engaged with the first tooth block and the second tooth block respectively, the outer bottom position of the protective cover is also integrally installed with a fixed seat, and the bottom of the fixed seat is integrally equipped with a fixed rod, and the fixed rod The outside of the shell is connected to the inner wall of the reserved groove through the first torsion spring, and the reserved groove is provided through the outer top position of the annular shell. During the use of the optical lens accessory, the installation and disassembly of the entire protective lens is very convenient, and the outside of the entire protective lens has good shock resistance during use, and the entire protective lens is subjected to external impact force There will be no serious damage when it is installed, and there will be no loose installation.