106 results about "Roof prism" patented technology

A pulse stretcher includes a single pass pulse stretcher. An optical system is arranged around the single pass pulse stretcher. A beam enters the single pass stretcher and is reflected in a helical path using the optical system for multiple passes through the single pass pulse stretcher. The single pass pulse stretcher can include two 90° prisms, with a beam splitter located therebetween. The optical system can include first and second prisms. At least one of the first and second prisms can be a roof prism. The first and second prisms can have at least one surface oriented so as to direct the beam into the helical path. The optical system can have at least one mirror, or a plurality of mirrors.

The invention generally relates to an optical turning film for providing light redirection, comprising: (a) an input surface for accepting incident light comprising a a plurality of roof prism structures arranged in a two-dimensional array; and, (b) a substantially planar output surface.

A divergent light beam from a light source unit having a plurality of light-emitting regions is almost contained within the surface of a reflecting body that is an array of micro roof mirrors / roof prisms disposed in a regular manner. The light beam emitted from the light source unit with an angle of divergence is reflected by the reflecting body and is almost converged on a light-receiving surface. As a result, there is increased the ray density of a light beam on the light-receiving surface.

The invention discloses a Smit roof prism polishing and machining technology. A prism blank body and a profiling model corresponding to the prism blank body are included. The included angle of the prism blank body, a surface 1 and a surface 2 on the profiling model is 45 degrees; the included angle of a surface 3 and a surface 4 is 90 degrees; a surface 5 and a surface 6 are mutual parallel; the prism blank body and the surfaces of the profiling model are glued by an optical cement technology in an optical cooling machining technology, and the surface 1, the surface 2, the surface 3, and the surface 4 of the prism blank body are polished and machined respectively; during the machining process, through observing, measuring and calculating product interface fringes, the flatness degree and parallel difference of the product surfaces are adjusted by a polishing method so as to guarantee the angle accuracy of the product; and by utilizing the technology, the angle accuracy is required to be within plus / minus 2 of the roof angle of the high-accuracy Smit roof prism can achieve percent of pass 90% above one time, the production efficiency is improved, the damage rate is lowered, and the economic benefit is improved obviously.

A pulse stretcher includes a single pass pulse stretcher. An optical system is arranged around the single pass pulse stretcher. A beam enters the single pass stretcher and is reflected in a helical path using the optical system for multiple passes through the single pass pulse stretcher. The single pass pulse stretcher can include two 90° prisms, with a beam splitter located therebetween. The optical system can include first and second prisms. At least one of the first and second prisms can be a roof prism. The first and second prisms can have at least one surface oriented so as to direct the beam into the helical path. The optical system can have at least one mirror, or a plurality of mirrors.

The self-adaptive surface plasma wave gas refractivity sensor includes one triangular prism and one roof prism attached to the outgoing surface of the triangular prism. It is featured by that the incident light to one surface of the triangular prism is reflected by one transducing surface, one roof surface and the reflaction of light goes on till to meet the original incident surface to pass through out. Compared with prior art of surface plasma wave sensor, the present invention has high reflectivity resolution superior to 1E-(-7) and less optical axis drift sensitivity. Theoretical calculation shows that optical axis drift of 1E(-5) arc will result in 1E(-7) refractivity change measured. Therefore, the present invention can raise the relief map stability of the system greatly.

A device for linear scanning including a mirror roof structure. The mirror roof structure includes a roof prism with at least two reflecting surfaces or at least two mirror surfaces. The reflecting surfaces of the roof prism or the two mirror surfaces are mutually perpendicular reflecting surfaces intersecting in a line of intersection. A scanning mechanism moves the mirror roof structure in a direction perpendicular to a plane of bilateral symmetry of the mirror roof structure. The line of intersection is included in the plane of bilateral symmetry; and an incident beam entering the mirror roof structure and an exit beam exiting the mirror roof structure are angularly separated by a substantial angle.

The invention discloses a complex prism for a functional telescope and a binocular telescope optical system thereof. The complex prism includes a first semi-pentaprism, a roof prism and a second semi-pentaprism. The first semi-pentaprism and the second semi-pentaprism have long right-angle surfaces which are adhesive to the bottom surface of the roof prism. A light incoming surface and a light emitting surface of the roof prism are on the same plane and are parallel to the roof ridge, such that an incoming optical axis and an outcoming optical axis of the complex prism are parallel. The binocular telescope optical system includes an objective lens, a complex prism, a reticle lens and an eye lens. The complex prism can obverse, collimate, transmit and receive laser rays and display laser rays.

An automatic inclination corrector and an inclination sensor using the automatic inclination corrector free from the temperature, for optical instruments. A transparent container 3 seals silicon oil C having a free liquid surface C1. A collimation lens 2 guides the laser beam from the diode 1 to the free liquid surface C1. The inclination corrector corrects the tilt of the instrument to glide the laser beam L4 from the container 3 to advance the beam upward with a normal angle. A reflecting mirror 5 reflects beam L2 after total reflection at the free liquid surface C1. The beam is inverted by a roof prism 6 and passes through silicon oil C and the free liquid surface C1 once. This removes the refractive index n influence to the laser beam L4, and gives an angular change to the laser beam 4 to head the laser beam L4 to a fixed direction.

The invention discloses an Abe-Koenig roof prism production technology, and belongs to the technical field of optical part production. According to the Abe-Koenig roof prism production technology, through large-surface processing, second-surface processing, third and fourth-surface processing and other processing, frosting and polishing processing is performed on a large surface of an Abe-Koenig roof prism by use of a square brick body, then other three surfaces are processed after the prism is optically cemented by use of an Abe-Koenig roof prism body and an Abe-Koenig roof prism tool, the three surfaces are continuously overturned for processing, and thus the technology can be completed. According to the invention, the purposes of shortening the processing period, improving the work efficiency, improving angle precision and reducing dimension errors are realized, the problem of consistency of precision and dimension during batch production of Abe-Koenig roofs is also solved, the angular precision of a product is improved, the roofs are not broken, and the qualified rate of the product is improved.

The invention discloses a high-speed adjustable optical comb filter. A single optical fiber collimator, a first polarized displacement crystal, a first half wave plate cluster, a birefringent retarding crystal, a second half wave plate cluster, an electro-optical retarder, a third half wave plate cluster, a second polarized displacement crystal, a fourth half wave plate cluster, a roof prism, a third polarized displacement crystal and a double optical fiber collimator are sequentially placed in the same horizontal optical path direction; parallel beams separated by the second polarized displacement crystal are collimated and coupled to the double optical fiber collimator via the roof prism and the third polarized displacement crystal; and high-speed adjustable central wavelength of the optical comb filter can be realized by controlling the externally applied voltage of the electro-optical retarder. The invention achieves high-speed dynamic adjustability of the central wavelength of the comb filter and has the characteristics of compact structure, convenient manufacturing and stable and reliable performance.

Asymmetry of output beams from a laser diode bar is significantly reduced by internally reflecting the beams from an array of roof prisms positioned and oriented to rotate the cross-sectional shape of each beam by 90°. An elongated retro prism is positioned to received all of the reflected beams and to redirect them away from the laser diode bar.

A viewing optical instrument has a roof prism which is provided with a pair of reflection surfaces intersecting at a nominal face angle of 90°, wherein the pupil is split by an edge line of the reflection surfaces of the roof prism. The reflection surfaces are provided with a multiple-layer coating which does not absorb visible light. A change in the phase difference produced between light incident on one of reflection surfaces located on opposite sides of an edge line of the roof prism and emitted from the other reflection surface, and light incident on the right reflection surface and emitted from the left reflection surface is restricted to reduce wavefront aberrations to thereby improve the quality of an image to be viewed. A roof prism used in the optical instrument is also disclosed.

A telescopic optical system that can be compact and lightweight is provided, and an optical apparatus including the telescopic optical system is also provided. A telescopic optical system 10, which is used in a telescope and other optical apparatus, includes the following optical systems arranged from an object side: an objective optical system 1; and an erecting optical system 2, which erects an image formed by the objective optical system 1, and the erecting optical system 2 includes a first reflection mirror 22, which is a first reflection member and has a reflection surface that reflects light from the objective optical system 1, a second reflection mirror 23, which is a second reflection member and has a reflection surface that reflects the light reflected off the first reflection mirror 22, and a roof prism 25, which is a third reflection member, has at least three surfaces including at least one roof surface, uses one of the surfaces as a light incident surface and another one of the surfaces as a light exiting surface, and causes the light reflected off the second reflection mirror 23 to be incident through the light incident surface, to be reflected off the surfaces, and then to exit through the light exiting surface.

A binocular telescope with digital laser ranging function, comprising an objective component, a beam splitter and coincidence prism system and an ocular component, and the beam splitter and coincidence prism system is arranged between the objective component and the ocular component; the beam splitter and coincidence prism system comprises a roof prism and a composite prism, the composite prism is composed of an isosceles prism, a right-angle prism A and a right-angle prism B, wherein the right-angle prism A and the right-angle prism B have the same shape and symmetrically abut on the two isosceles planes of the isosceles prism. The binocular telescope of the invention not only has observation function, but also has laser ranging function, and can display the target characters such as optical virtual sight and measured distance in the form of character in the field of view.

The invention discloses a collimator parallel optical axis orientation included angle calibration device. The collimator parallel optical axis orientation included angle calibration device comprises a base and a calibration prism arranged in the base, wherein the calibration prism is used for guiding the collimated light of a measurement head of a collimator to be calibrated to a CCD sensor of the other measurement head of the collimator to be calibrated or the optical axis of a right-angle prism of the collimator to be calibrated in parallel in the reverse direction. The calibration prism comprises a right-angle roof prism DIIj-180. Due to the adoption of the technical scheme that the calibration prism guides the collimated light of the measurement head of the collimator to be calibrated to the CCD sensor of the other measurement head of the collimator to be calibrated or the optical axis of the right-angle prism of the collimator to be calibrated in parallel in the reverse direction, the orientation included angle of the collimator to be calibrated can be conveniently measured, and the operation is simple; due to the fact that rotation of the right-angle roof prism DIIj-180 does not affect the parallelism between the incidence optical axis and the outgoing optical axis, the calibration device and the collimator to be calibrated do not need to be leveled, and work efficiency is improved. The collimator parallel optical axis orientation included angle calibration device is suitable for calibrating collimators.

A device for linear scanning includes a roof prism. The roof prism includes a roof of two mutually perpendicular reflecting surfaces intersecting in a line of intersection. A scanning mechanism moves the roof prism in a direction perpendicular to a plane of bilateral symmetry. The line of intersection is included in the plane of bilateral symmetry; and an incident beam entering the prism and an exit beam exiting the prism are angularly separated by a substantial angle. Preferably, the scanning mechanism generates periodic motion or rotational motion of the roof prism with a radius of motion greater than a dimension of the roof prism.

Asymmetry of output beams from a laser diode bar is significantly reduced by internally reflecting the beams from an array of roof prisms positioned and oriented to rotate the cross-sectional shape of each beam by 90°. An elongated retro prism is positioned to received all of the reflected beams and to redirect them away from the laser diode bar.

The invention discloses a multi-spectral and multi-receiver beam splitter and coincidence prism system capable of superposing and displaying graphic and text information. The multi-spectral and multi-receiver beam splitter and coincidence prism system comprises a roof prism (4) and an isosceles prism. An isosceles prism body (2), a right-angle prism A (1) and a right-angle prism B (3) are combined with one another to form the isosceles prism. The multi-spectral and multi-receiver beam splitter and coincidence prism system has the advantages that different spectra can be parallelly processed differently, and the additional graphic and text information can be superposed on image surfaces and can be quite clearly displayed in large visual fields.

This invention discloses a wearable telescopic containing a frame, an objective lens, body tube and eye lens. The body tube is set with an optical reverse image device made up of flat reflector and bootstrap roof prism, an angle formed between the flat reflector and objective lens is the same with that formed by the entrance surfface of the bootstrap roof prism and a flat mirror, the exit surface of the bootstrap roof prism is parallel ot the eye lens. The angle formed by the entrance surface of the bootstrap roof prism and the flat reflector is 45 degrees, which is simple structure, small volume widely used in watching sports tournaments, entertainment and tripsetc.

The invention discloses a semiconductor laser range finding optical system and a range finder. The semiconductor laser range finding optical system comprises a collimation optical path sub-system, a transmitting optical path sub-system arranged at the lower side of the collimation optical path subsystem and a receiving optical path sub-system arranged on the upper side of the collimation optical path sub-system; the collimation optical path sub-system is provided with an objective lens group, a Schmidt-Pechan roof prism group, flat glass and an eyepiece group which are distributed along an incident direction from left to right, wherein the eyepiece group comprises a cemented lens group and a biconvex lens which are distributed along the incident direction; the transmitting optical path sub-system comprises a cemented prism, a collimating lens and a semiconductor transmitting light source which are distributed sequentially along the direction of an optical axis, wherein the cemented prism includes a half pentaprism and a wedge lens; and the receiving optical path sub-system comprises a receiving lens group, a biconcave lens and an optical signal receiver which are distributed sequentially along the direction of the optical axis. With the semiconductor laser range finding optical system of the invention adopted, measuring distances can be prolonged, measuring precision can be improved, and a measuring link and a link in which collimation is difficult to be dealt with are realized. The range finder adopting the semiconductor laser range finding optical system can achieve high image contrast and high definition under any circumstances when measuring the distances of objects at different distances.

A sighting device is used to aim along a line of sight at a target. The sighting device includes a reticle structure formed of a roof prism assembly having an inclined final roof-prism mirror surface that is not perpendicular to the line of sight. The inclined final roof-prism mirror surface is the last surface of the roof prism assembly from which an optical path of the target reflects before leaving the roof prism assembly. There are two sets of sighting reference features, wherein the sets of sighting reference features are disposed on the inclined roof-prism mirror surface. A separately operable illumination source is provided for each of the sets of sighting reference features, wherein each illumination source illuminates only one set of sighting reference features.

The invention discloses a high-power pulse laser amplifier with a high integration level, which comprises a crystal lath gain module, two sets of roof prism arrays, two sets of tail fiber coupling LDpumping arrays and two corresponding pumping coupling modules, wherein the crystal lath gain module is used for providing gain for laser amplification; the tail fiber coupling LD pumping arrays are used for providing excitation for the crystal lath gain module; the roof prism arrays are located at the two ends of the crystal lath, arranged in the advancing direction of seed laser and used for controlling the path of a laser beam in the crystal lath; the pumping coupling modules are arranged in the advancing direction of a pumping beam and used for shaping the distribution of the pumping lightin the crystal lath; and the tail fiber coupling LD pumping array is composed of a plurality of fiber coupled output semiconductor lasers. The pulse laser amplifier is compact in structure and easy toadjust, and hundreds of watts level high-gain amplification can be achieved for picosecond laser through one gain module.

The invention relates to an optical system comprising a roof prism, a first triangular prism, a second triangular prism, a third triangular prism and a light source. After a light beam emitted by a light source enters the third triangular prism via a third light inlet / outlet surface of the third triangular prism, the light beam is totally reflected by a third reflection plane of the third triangular prism and then enters the second triangular prism via a second light inlet / outlet surface of the second triangular prism; then the light beam sequentially goes through a thin film surface and a second reflecting surface of the first triangular prism to enter the roof prism; and afterwards, the light beams is sequentially and totally reflected by a first light inlet / outlet surface, a roof surface and a first totally reflecting surface, and then goes out from the first light inlet / outlet surface.

The invention discloses a 90-degree spatial optical mixer with optimized polarization parameter configuration, belonging to the field of wireless communication technology. The 90-degree spatial optical mixer aims to solve the problem of lowered mixing efficiency caused by the polarization state mismatch between a local oscillation light and a signal light in the existing 90-degree spatial opticalmixer. The mixer comprises a local oscillation laser, a first half-wave plate, a quarter-wave plate, a second half-wave plate, a first polarization beam splitting prism, and a third half-wave plate, asecond polarization beam splitting prism, a first right-angle roof prism, a first balanced detector, a non-polarization beam splitting prism, a fourth half-wave plate, a third polarization beam splitting prism, a second right-angle roof prism, a second balanced detector , a right-angle prism, a polarization state detector, and a polarization state controller. The 90-degree spatial optical mixer with optimized polarization parameter configuration of the present invention gains wide application prospects in the fields of inter-satellite, satellite-ground wireless laser communication, and the construction of an air-space-ground integrated information network.

Optical lens attachments and cameras are disclosed. The attachment comprises a coupling mechanism for mating engagement with at least one of a camera and an optical lens. A barrel is coupled at one end to the coupling mechanism. A negative lens unit is coupled to the other end of elongated barrel. A diopter lens is disposed between the barrel and the coupling mechanism. The coupling mechanism, the diopter lens, and the barrel are aligned with an optical axis. Also disclosed is a double swivel optical system, comprising a negative lens unit, a mirror oriented at an angle to the optical axis of the negative lens unit, a roof prism for rotating incident light rays by 90 degrees and inverting an image, a rotation mechanism permitting rotation of the negative lens unit about a vertical axis, an image rotator comprising a prism that can invert an image, the prism disposed within the image rotator, and another rotation mechanism permitting rotation of the roof prism about an optical axis of the image rotator.