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 camera lens accessory holder includes an attachment ring configured to couple to a camera lens accessory such as a lens cap or filter, a base coupled to the attachment ring and a holder mount coupled to the base opposite the attachment ring for removably attaching the holder to an external support structure. The base optionally includes a logo surface facing the attachment ring and optionally includes one or more visual elements such as a logo, text, photograph, or symbol. Some embodiments of a camera lens accessory holder include more than one attachment ring. Other embodiments are provided with means for attaching two holders to each other, one each on opposite sides of a flexible strap or belt. Some embodiments include a clip for attachment of a camera lens accessory holder to a belt, strap, or thin sheet of material.

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 pair of eyeglasses includes a lens, a couple of right and left elastically deformable frames attached to respective side end portions of the lens, and a couple of right and left temples attached to the respective frames. A frame fitting portion is provided at each of the side end portions of the lens and a lens fitting hole is provided in a front portion of each of the frames. The frame fitting portion fits into the lens fitting hole so that the lens is detachably attached to each of the frames. The volume of the frames is reduced to lighten the weight of the eyeglasses as a whole. With the eyeglasses, a forward vision of a wearer is guaranteed when he leans forward, and easy lens exchange is achieved.

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 fitting and adjusting device, which is used for installing and adjusting a lens (2), which comprises a cavity (1), a lens support frame (3), a holding pressure system (4) and a supporting system (5). The bottom wall of the body has a through hole. The lens support frame is located in the cavity for supporting the lens. The holding pressure system is used to fix the lens on the lens support frame. The support system penetrates into the cavity through the through hole of the cavity. The part is fixedly connected with the bottom of the lens support frame. The supporting system includes an upper flange, a lower flange, a bellows and a supporting screw. The upper flange and the lower flange are respectively fixedly connected with the two ends of the bellows and aligned axially, and a through hole is opened in the center. The supporting screw passes through the through hole of the cavity and the through hole of the axis of the lower flange, the bellows and the upper flange in turn, and abuts against the bottom of the lens support frame. The invention can realize the three-dimensional adjustment of the lens and the lens support frame, and isolate the vibration influence of the vacuum pump group on the lens.

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 a real-time compensating optical system installation and adjustment equipment. The laser interferometer, depth measuring instrument and interferometer of the equipment respectively transmit the measured surface shape accuracy, thickness and surface curvature radius of each lens to the calculation unit, The centering instrument monitors and adjusts the lens inclination and eccentricity online and transmits the measured data of the lens inclination angle and eccentric distance to the calculation unit; the mirror positioner measures the distance between the lens and the previous lens and transmits the measured data to the calculation unit; for the first lens of the optical system , the calculation unit calculates the adjustment guidance data according to its theoretical adjustment data and independent variable parameters; for any subsequent lens, the calculation unit calculates the adjustment according to its theoretical adjustment data, independent variable parameters and the accumulated deviation value of the actual detection data of the previous lenses. Lens adjustment guide data. The invention can perform real-time compensation according to the actual detection data of each lens, guide the adjustment of the next lens, and realize the rapid adjustment of the high-end microscopic objective lens.

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 relates to the field of contact lenses for eyes, in particular to an orthokeratology lens fitting method. The method is characterized by comprising the following steps of: 1, calculating an AC (Alternating Current) value; 2, performing parameter operation; and 3, demonstrating the legend. The method is high in efficiency and precision, and is a mainstream control method for preventing and controlling myopia of children.

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.