Automatic retractable lens and terminal

FIELD: physics.

SUBSTANCE: claimed terminal containing the automatic retractable lens, includes a camera lens, the first elastic node, a swivel node, a slide switch, and the second elastic element. The camera lens is connected with one end of the first elastic node and the body of the terminal, respectively. On the side, the camera lens is provided with a connecting groove, and the second end of the first elastic node is connected to the body. The slide switch is configured to move downward. The slide switch rotates the swivel node so that the swivel node disengages from the connecting groove and the first elastic node pushes the camera lens. After actuation, the camera lens is pressed downwards so that the first elastic node is compressed; the connecting groove is clamped by the swivel node. The swivel node rotates the slide switch so that the slide switch is returned to its original position. The slide switch is connected with the body through the second elastic node. After the slide switch returns to its original position, the second elastic node locks the slide switch.

EFFECT: ability to automatically push and pull the camera lens with the possibility of placing the camera lens inside the body, thus preventing damage to the camera lens.

6 cl, 7 dwg

 



 

Same patents:

Infrared system // 2542790

FIELD: physics.

SUBSTANCE: infrared system consists of a first channel, comprising an afocal attachment and a focusing lens arranged in series, a second comprising an input lens and a projection lens and a photodetector which are common for the first and second channels and are arranged in series. The system also comprises devices for switching radiation flux from the first and second channel to the photodetector. In the first channel, the focusing lens has a discretely variable focal distance. In the second channel the input lens has a smoothly variable focal distance. The radiation flux switching device is installed in front of the projection lens.

EFFECT: longer detection range and high spatial resolution of the system owing to smoother variation of the focal distance by expanding the variation range of focal distance towards the maximum value.

5 cl, 1 dwg, 4 tbl

FIELD: physics.

SUBSTANCE: lens has three components. The first fixed component comprises a first positive convex-concave lens and a second biconvex lens, the second surface of which is aspherical. The second component comprises a negative lens, the first surface of which is aspherical, and is configured to move along an optical axis. The third fixed component comprises a first biconvex lens and a second positive lens. The second movable component is located between the first and second lenses of the fixed first component.

EFFECT: improved energy characteristics and angular resolution of the lens due to a larger diameter of entrance pupil and focal distance.

5 cl, 1 dwg, 3 tbl

FIELD: physics, photography.

SUBSTANCE: system for providing a two-position zoom-focus capability in a video inspection device comprises, in one embodiment, a focus lens cell and primary aperture attached to a set of fixed guides and connected to a zoom lens cell. The focus lens cell can move into a first position along said guides through activation of an external lens movement mechanism, and can move into a second position through relaxation of a tensioned focus spring. Movement of the focus lens cell between first and second focus positions causes movement of the zoom lens cell and a secondary aperture between first and second zoom and aperture positions, respectively.

EFFECT: obtaining magnified and unmagnified images of a target object in extreme devices.

19 cl, 5 dwg

FIELD: physics.

SUBSTANCE: lens according to both versions comprises four components, the second and fourth of which are fixed and have two fixed positions each. The first component is in the form of a positive meniscus whose concave surface faces the image plane, the third component is in the form of a positive meniscus whose convex surface faces the image plane, and the fourth component is positive and is in the form of two menisci whose convex surfaces face each other. In the first version, the second component includes a biconcave lens and a negative meniscus facing the biconcave lens with its convex surface. In the second version, the second component is in the form of two negative menisci facing each other with their concave surfaces. Relationships given in the claim are satisfied.

EFFECT: wider angular field, high aperture ratio in narrow field of view mode, providing quasi-equal aperture ratio values when changing the field of view, short relative length of the lens while providing high image quality.

5 cl, 12 dwg, 2 tbl

FIELD: physics.

SUBSTANCE: objective lens consists of a first fixed positive component, a second movable negative component, a third movable positive component, a fourth fixed positive component and a fifth fixed negative component. The first, third, fourth and fifth components are in form of menisci whose concave surfaces face the image plane. The second component is in form of a single biconcave lens. The first and fifth components are made from optical germanium with refraction index n=4. The second and fourth components are made from material with refraction index n2=n4=2.44 and the third component is made from material with refraction index n=2.78. The concave outer surfaces of the first and fourth components are aspherical. Radii of curvature of the surfaces of the objective lens and thickness of the first and fifth components satisfy relationships given in the claim.

EFFECT: high quality of the image formed in two spectral ranges with small weight and size parameters.

6 dwg, 2 tbl

Optical system // 2431166

FIELD: physics.

SUBSTANCE: system has a long-region pancratic system, the first component of which has a fixed positive meniscus whose concave surface faces the object space, and a biconcave lens, a biconvex lens and a negative meniscus in front of the positive meniscus, the convex surface of said negative meniscus facing the object space, and the second component comprises two biconcave lenses and the third has a biconvex lens. The second and third components are movable. The system has a near-region pancratic system connected to a telescopic system by a first pair of parallel reflectors. The near-region pancratic system is parallel to the long-region pancratic system and is connected to it by a second pair of parallel reflectors, the first of which can be moved out of the beam path. The near-region pancratic system has three components, the first being a biconvex lens, the second being a biconcave lens and the third being a convergent lens which is immovable and comprises a negative and a positive meniscus whose concave surfaces face the object space. The first and second components can be moved along an optical axis. The focal distances of the components of the pancratic system are linked by relationships given in the claim.

EFFECT: increase in magnification of the system while reducing the total length of the system and the value of displacements of the movable components.

2 cl, 1 dwg

FIELD: physics.

SUBSTANCE: zoom lens system comprises thirteen lenses merged into four blocks. Blocks 1, 3 and 4, read from the object, are positive, and block 2 is negative and can move along an optical axis. Block 1 consists of four lenses, wherein the outer surface of the first lens is curved in towards the image plane. Block 3 consists of three meniscus lenses whose concave surfaces face the image plane, and can move across the optical axis. Block 4 is in form of glued convex-concave lenses. Parameters of the lenses and material from which said lenses are made correspond to values given in tables in the formula of invention.

EFFECT: high degree of correcting monochromatic and chromatic aberration.

3 cl, 9 tbl, 16 dwg

Pancratic lens // 2411558

FIELD: physics.

SUBSTANCE: lens has at least four groups of lenses configured to move when changing the focal distance. The first, third and fourth groups of lenses have positive optical power. The second group of lenses has negative optical power. The following relationships are satisfied: 0.7 < (β2t · β3w) / (β2w · β3t) < 1-0, 4.8 < β3t / β3w < 6.6, where β2w and β2t are lateral magnification of the second group in the wide-angle and long-focus position, respectively; β3w and β2t are lateral magnification of the third group in the wide-angle and long-focus position.

EFFECT: wide range of focal distances and improved aberration correction owing to more rational distribution of magnifications and the magnification range between groups of lenses.

9 cl, 3 dwg, 3 tbl

Pancratic system // 2411557

FIELD: physics.

SUBSTANCE: pancratic system has an afocal system with variable angular magnification and an optical unit. The afocal system is configured to work in forward and reverse beam paths and has on an optical axis in the forward beam path a first group of lenses and a second group of lenses configured to move along the optical axis. The optical unit has a third group of lenses and a sensor. The optical unit is configured to move in two positions. In the first position, the optical unit lies on the side of the second group of lenses of the afocal system and radiation falls into the afocal system on the side of the first group of lenses, passes through the afocal system in the forward beam path and falls into the optical unit. In the second position, the optical unit lies on the side of the first group of lenses of the afocal system and radiation falls into the afocal system on the side of the second group of lenses, passes through the afocal system in the reverse beam path and falls into the optical unit.

EFFECT: design of a compact pancratic system with high zoom ratio and low aberration.

4 cl, 1 dwg

FIELD: physics.

SUBSTANCE: optical system of an input device comprises: an image sensor for entering an image into the region of an object lying under the input device; an objective lens; a light source, where the field of view of the image sensor is shifted from the optical axis of the component of the objective lens by an angle i.e. it is essentially parallel to the axis of the input device to the surface. The shifted optical system with infrared illumination processes the viewpoint and helps detect positional coding, which when illuminated by visible light may be covered with ink.

EFFECT: reduced effect of the viewpoint when images are captured on the surface, input of hand-written electronic ink and possibility of linking electronic ink to new or stored documents.

24 cl, 20 dwg

Zoom lens drive // 2260826

FIELD: optics.

SUBSTANCE: the zoom lens drive has a step-by-step motor coupled through a reduction gear to a cylinder cam with shaped grooves on the generating line, two carriages kinematically linked with the cam, return spring with one end fastened on the cam, and with the other - on the drive body, and a control unit whose outlet is connected to the four windings of the step-by-step motor. Each carriage is provided with a backlash take-up spring fastened with its ends on the carriage and drive body respectively. On the axle of rotation of the cylinder cam, having a lug on the end face surface, installed is a cam rotation limiter made in the form of cams. The first cam has a lug engageable with the lug of the cylinder cam, and the latter is installed with a stop against metal-rubber shock absorber located on the drive body.

EFFECT: reduced mass and dimensional characteristics of the zoom lenz drive.

1 dwg

Zoom lens drive // 2260827

FIELD: optics.

SUBSTANCE: the zoom lens drive has a step-by-step motor coupled through a reduction gear to a cylinder cam with shaped grooves on the generating line, two carriages kinematically linked with the cam, control unit with a master oscillator, whose output is connected to the information input of the frequency divider and a coefficient producer. The coefficient producer has a binary counter and a storage. The information input of the binary counter is connected to the output of the frequency divider, and the output - to the address input of the memory, the coefficient assignment output and whose count permission output respectively are connected to the input of coefficient setting and input count assignment of the frequency divider. The drive is provided with multiplexer having a trajectory setting input, whose information inputs are connected to the information outputs of the memory, and the output - with four windings of the step-by-step motor.

EFFECT: expanded range of the speeds of movement of the optical component of the zoom lens drive.

2 dwg

FIELD: engineering of devices using several spectral ranges.

SUBSTANCE: objective has four optically connected components, first, second and third components contain three lenses each, and fourth one - five lenses, while second and third components are made with possible movement along optical axis. In objective, relations of optical strengths of lenses to optical strength of first components are, respectively, 0.6-0.83, -(0.95-1.1), 1.32-1.45, -(3.2-3.4),-(2.3-2.5), 2.3-2.5, 1.29-1.39,-(1.67-1.77), 2.35-2.5),-(3.9-4.3), 3.0-3.3, 2.1-2.3, 2.1-2.4, -(3.0-3.4), while materials of lenses have refraction coefficients, respectively, 1.55-1.65, 1.75-1.94, 1.54-1.66, 1.64-1.76, 1.47-1.57, 1.75-1.94, 1.43-1.57, 1.61-1.71, 1.43-1.53, 1.58-1.68, 1.54-1.66, 1.54-1.66, 1.54-1.66, 1.64-1.81, and dispersion coefficients, respectively, 45-55, 20-35, 55-72, 50-62, 54-71, 20-35, 71-85, 35-45, 75-95, 37-47, 55-72, 55-72, 55-72, 23-34.

EFFECT: quality image within spectral range from 0,45 to 0,9 micrometers.

4 dwg

FIELD: optics.

SUBSTANCE: lens comprises two movable members. The members are arranged symmetrically one with respect to the other and their refraction surfaces are defined by moving the generatrix along the guide and represent arcs of circumferences or curves with varying radius of curvature. The first member moves toward the object, and the second member moves toward the plane of image so that the plane of image is unmovable.

EFFECT: enhanced quality of image.

2 cl, 1 dwg

FIELD: physics.

SUBSTANCE: objective consists of a first and last immovable positive components installed along the path of beams, and movable separate lenses put between them. The first component is a convex-concave lens, the concave side of which faces the image plane. The fist movable lens is biconcave, and the second is positive. The last component is a single convex-concave lens, the concave side of which faces the image plane. All elements of the optical system are made from the same type of material. Between the movable lens and the last immovable component there is an extra lens, which in the first version, can move and the movable lenses move without keeping constant distance between the peaks of their refracting surfaces. In the second version, the extra lens is immovable, and the movable components move in opposite directions.

EFFECT: improved quality of the image and smaller dimensions.

2 cl, 4 dwg

FIELD: physics, optics.

SUBSTANCE: invention can be used in thermal imager optical systems, including, looking type with matrix receivers of an infrared range. The objective contains the first positive meniscus located on a course of beams and converted by an incurvation to a plane of images, the second biconcave lens, the third positive meniscus converted by an incurvation to a plane of images, and the fourth plus builder in the form of the subzero and positive meniscuses converted by protuberance to each other. The second and third lenses move in opposite directions, have two fixed standings and small motions in these standings. The relative optical forces of the components make, accordingly, (0.8÷0.9), - (3.0÷2.5), (2.0÷2.4) and (2.2÷2.8) and in an objective the relations specified in the formula of the invention are observed. All refracting surfaces in an objective are executed by the spherical.

EFFECT: increase of an angular aperture, an angular field, adaptability to manufacture, reduction of diameter of the first lens at maintenance of high quality of the image.

6 dwg

FIELD: physics.

SUBSTANCE: optical system of an input device comprises: an image sensor for entering an image into the region of an object lying under the input device; an objective lens; a light source, where the field of view of the image sensor is shifted from the optical axis of the component of the objective lens by an angle i.e. it is essentially parallel to the axis of the input device to the surface. The shifted optical system with infrared illumination processes the viewpoint and helps detect positional coding, which when illuminated by visible light may be covered with ink.

EFFECT: reduced effect of the viewpoint when images are captured on the surface, input of hand-written electronic ink and possibility of linking electronic ink to new or stored documents.

24 cl, 20 dwg

Pancratic system // 2411557

FIELD: physics.

SUBSTANCE: pancratic system has an afocal system with variable angular magnification and an optical unit. The afocal system is configured to work in forward and reverse beam paths and has on an optical axis in the forward beam path a first group of lenses and a second group of lenses configured to move along the optical axis. The optical unit has a third group of lenses and a sensor. The optical unit is configured to move in two positions. In the first position, the optical unit lies on the side of the second group of lenses of the afocal system and radiation falls into the afocal system on the side of the first group of lenses, passes through the afocal system in the forward beam path and falls into the optical unit. In the second position, the optical unit lies on the side of the first group of lenses of the afocal system and radiation falls into the afocal system on the side of the second group of lenses, passes through the afocal system in the reverse beam path and falls into the optical unit.

EFFECT: design of a compact pancratic system with high zoom ratio and low aberration.

4 cl, 1 dwg

Pancratic lens // 2411558

FIELD: physics.

SUBSTANCE: lens has at least four groups of lenses configured to move when changing the focal distance. The first, third and fourth groups of lenses have positive optical power. The second group of lenses has negative optical power. The following relationships are satisfied: 0.7 < (β2t · β3w) / (β2w · β3t) < 1-0, 4.8 < β3t / β3w < 6.6, where β2w and β2t are lateral magnification of the second group in the wide-angle and long-focus position, respectively; β3w and β2t are lateral magnification of the third group in the wide-angle and long-focus position.

EFFECT: wide range of focal distances and improved aberration correction owing to more rational distribution of magnifications and the magnification range between groups of lenses.

9 cl, 3 dwg, 3 tbl

FIELD: physics.

SUBSTANCE: zoom lens system comprises thirteen lenses merged into four blocks. Blocks 1, 3 and 4, read from the object, are positive, and block 2 is negative and can move along an optical axis. Block 1 consists of four lenses, wherein the outer surface of the first lens is curved in towards the image plane. Block 3 consists of three meniscus lenses whose concave surfaces face the image plane, and can move across the optical axis. Block 4 is in form of glued convex-concave lenses. Parameters of the lenses and material from which said lenses are made correspond to values given in tables in the formula of invention.

EFFECT: high degree of correcting monochromatic and chromatic aberration.

3 cl, 9 tbl, 16 dwg

Up!