Matches 251 - 300 out of 367 < 1 2 3 4 5 6 7 8 >
Match Document Document Title
5442486 Super-telephoto zoom lens  
An internal focus super-telephoto zoom lens comprises, in succession from the object side, a first lens unit having positive refractive power, a second lens unit having negative refractive power,...
5398132 Optical apparatus having image stabilizing device  
A correction optical member can be locked and unlocked without wasting electric power or requiring cumbersome operations. A locking control member (16) for operating a locking member (20) in...
5387999 Camera shake compensating optical system  
A camera shake compensating optical system has a first lens and a second lens from the object side. The image side surface of the first lens is convex to the object side. The object side surface of...
5376993 Optical axis correction lens device  
A system for correcting for positional deviations in a hand-held video camera caused by small movements or shaping of the user's hands includes an afocal optical system constituted by a positive...
5349476 Control for optical system having multiple focal lengths  
An optical system including first and second lens groups disposed for relative movement along an optical axis and coupled together by a cam and follower mechanism for controlling such relative...
5331467 Reflex lens system having the antivibration function  
An antivibration reflex lens provided with an antivibration correcting optical system is of a two-group construction having a first lens group which is a substantially afocal system having a...
5315435 Image stabilizing optical system  
This specification discloses an image stabilizing photo-taking lens system having a lens system in which a plurality of lens units are disposed and at least one lens spacing is changed to change...
5311367 Optical device including a transparent material between two relatively adjustable transparent members  
An optical device for stabilizing an image of an objective lens against an unexpected vibration is disclosed. A pair of transparent parallel-plane plates are supported by a support member, an...
5285313 Image stabilizing apparatus  
An image stabilizing apparatus for correcting a blur of image by using correcting optical means supported in a manner capable of relative displacement in relation to the lens-barrel is adapted to...
5280387 Image stabilizing apparatus  
An image stabilizing apparatus is disclosed comprising an imaging optical system for forming an image of a subject onto an imaging surface. A deflector has first and second liquid prisms disposed...
5270857 Optical system for stabilizing an image  
An image stabilizing system includes a photographic lens device having a plurality of lens units, wherein for zooming at least one lens unit separation varies, a detecting circuit for detecting the...
5249079 Lens system  
A lens system comprises a plurality of lens elements, including a deflecting lens group, to stabilize a blurred image at a focal plane. The deflecting lens group moves slightly in a circular orbit...
5245478 Mount for Berek compensator  
The present invention is a mount for optical instruments, and particularly, for a Berek compensator having a birefringent crystal, which can be both tiled and rotated by structure of adjustment...
5243462 Image stabilizing apparatus  
An image stabilization apparatus of an inertial pendulum type corrects vibration of an image by a correcting optical device relatively displaceable with respect to a barrel. The apparatus includes...
5189545 Optical deflector and display unit using the same  
An optical deflector is disclosed in which a polygonal prism is rotatively driven by a polygonal prism driving circuit and an emergent light beam from the polygonal prism effects repeated scanning...
5182671 Variable magnification optical system having a capability of stabilizing the image  
An image stabilization optical system for use in the variable magnification optical system having a first lens group followed rearwardly by a zoom section comprising a plurality of lens groups is...
5172268 Image stabilizing optical system  
The image stabilizing optical system comprises a master lens, and a meniscus lens arranged between the master lens and the image surface thereof, and having a concave surface opposed to the exit...
5172233 Still camera apparatus  
In an electronic still camera apparatus wherein an image of an object is incident on an image pickup surface of a CCD through an optical lens, the object image passed the optical lens is divided...
5168403 Zoom lens system  
A zoom lens system comprises from the object side, a front lens group having a refractive power of a predetermined sign and a rear lens group having a refractive power of different sign from that...
5168385 Optical device and producing method therefor  
There is disclosed an optical device capable of deforming a member connecting a pair of optically transparent parallel-faced flat plates, thus varying the mutual angle of the paired flat plates and...
5148308 Real image type vari-focal viewfinder  
A real image type vari-focal viewfinder comprising an objective lens system consisting of a plurality of lens components and functioning to form a real image, and an eyepiece lens system, adapted...
5140462 Optical system having image deflecting function  
An optical device includes, from front to rear, a first lens unit arranged to produce an over-corrected lateral chromatic aberration and/or distortion, a variable vertical angle prism unit, and a...
5122908 Non-linear controller functions for inertial optical stabilizers  
A stabilizing controller system is disclosed for passive inertial stabilizers having case mounted optics moving in combination with inertially suspended optics to stabilize images against...
5121978 Image blur compensating telephotographic lens  
An image blur compensating telephotographic lens has four lens groups. The four lens groups comprise a first lens group having a positive power, a second lens group having a negative power, a third...
5077622 Apparatus for precision focussing and positioning of a beam waist on a target  
A beam focusing and positioning apparatus provides focusing and positioning the final waist of a gaussian beam at a desired location on a target such as an optical fiber. The apparatus includes a...
5073017 Image deflecting device  
A telephoto lens is provided, in succession from the object side to the image surface side, with a first lens component having a positive refractive power and a second lens component having a...
5069537 Image deflecting device  
In an optical system comprising a plurality of lens units, one of which is used as a compensation lens unit capable of decentering to compensate for the image blur, an image magnification βc of...
5040881 Image stabilization lens system  
A zoom lens comprising a front lens group including a lens unit for decentering relative to an optical axis to stabilize an image at the focal plane and a rear lens group including lens units...
5039211 Zoom lens capable of image blur compensation  
A zoom lens has three or more lens groups. A variable power lens group or at least one lens group located in a position nearer to an image than a variable power lens group serves as an image blur...
5018845 Photographic system for stabilizing an image including two positive lens groups, each group including a positive lens and a negative lens  
A device for stabilizing an image includes first and second lens groups having a positive refractive power. The second lens group is disposed on an image surface side of the first lens group. Both...
5000549 Zoom lens for stabilizing the image  
A zoom lens is disclosed, comprising a front lens group including a compensation lens sub-group arranged to move in a direction having a directional component transverse to the optical axis in...
4998809 Image-stabilizing optical device  
An image-stabilized optical device comprising, from front to rear, a first lens group of negative power, a second lens group of positive power and a rear lens group of positive power for forming an...
4996545 Apparatus for correcting blurred image of camera using angular acceleration sensor and angular acceleration sensor  
An apparatus for correcting a blurred image has a blurred image correcting lens which constitutes at least part of a photographing lens of a camera. The correcting lens is supported to move in a...
4978205 Vibration-isolating optical system  
A vibration-isolating optical system having an image stabilizing function, comprising: a fixed lens optical system having a plurality of lens groups which are arranged to be stationary in the...
4978200 Optical image rotators  
An optical image rotator assembly has both a rotational axis and an optical axis. Provision is made for adjusting the alignment of the optical axis, both angularly and translationally, in relation...
4974950 Optical system for deflecting image  
An optical system comprising, from front to rear, a first lens group of positive power, a second lens group of negative power and a third lens group of positive power, wherein deflection of an...
4973115 Free expansion pseudo-zoom for laser projector  
The angle of divergence of a laser beam (29) is controlled without significant variation of beam power by using a movable corner cube (18) to vary the length of the optical path of a noncollimated...
4927250 Optical system for compensating chromatic abherration of image  
An optical system comprises an image deflector having a variable refraction angle for forcibly moving an object image formed by an objective lens onto an image plane, and an aberration suppressor...
4911541 Inertial pendulum optical stabilizer  
An inertial pendulum stabilizer is utilized for stabilizing the lens train of an optical instrument to be stabilized, such as a television camera, against accidental angular motion. A substantially...
4907868 Optical system for deflecting image  
An optical system for deflecting an image by decentering a portion of a photographic lens in a direction perpendicular to an optical axis, wherein the decentering aberrations produced by the...
4844602 Optical system for deflecting image  
In the stabilized optical system against vibratory motions, a front lens unit restrained from movement in a direction perpendicular to the optical axis is followed rearwardly by a movable lens unit...
4734905 Optical head device  
An optical head device comprising a light source unit, a deflecting element for changing the direction of travel of a light beam emitted from the light source unit, and a condensing element for...
4646146 Surveillance camera device with automatically controlled shutter  
A surveillance device consists of a video camera, a shutterless objective, a transmission optic element with an automatically controlled cat's eye shutter, and reflecting mirrors, for projecting an...
4623930 Camera apparatus  
A camera apparatus comprising focusing means for optically focusing a beam of light from an object, an imaging element for converting an optical image produced by the focusing means into electrical...
4491397 Sighting heads for periscope installations, particularly for submarines  
The invention relates to a periscope installation sighting head, particuly for a submarine, located at the upper end of a periscope mast and including at least one optical sighting unit off-set...
4410245 Image stabilization method, and apparatus  
A method of reducing the effects of rotational motion and jitter of an object comprising forming a virtual image of the region or plane being examined at the center of rotation of the object by...
4378952 Dynamic image enhancer for fiberscopes  
A fiberscope objective having an oscillating lens element which causes images formed by the objective to scan across a receiving end of an image-transporting fiber bundle for increased image...
4364628 Optical sights  
The invention provides a stabilizable optical gun sight including an optical system having an eye piece and an objective lens and between the eyepiece and objective lens, two optical wedges which...
4290684 Image stabilizing apparatus  
Apparatus for maintaining in focus an image formed at the image plane of an optical instrument, notwithstanding random angular movement of the instrument's housing. Such apparatus includes mounting...
4249792 Optical observation instrument with fiber optic image stabilizer  
An optical observation instrument including on the one hand a mounting in which are mounted a convergent objective lens and a convergent eyepiece and on the other hand a disc formed of optical...
Matches 251 - 300 out of 367 < 1 2 3 4 5 6 7 8 >