87results about How to "Simplified Optical System" patented technology

A universal gonioscope-contact lens system suitable for both diagnostics and / or intraocular laser surgery that consists of a conical gonioscope body with a plurality of mirrors on the inner side of the body and a contact lens that consists of a contact lens portion intended for contact with the patient's eye cornea and a rear main optical portion that may have any arbitrary shape, provided that it has beveled flat surfaces arranged perpendicular to the beams reflected from the gonioscope mirrors. The aforementioned rear main optical portion can be conveniently used for manipulating the contact lens and for arranging optical lens components such as a concave lens and convex lens. The convex lens component may be used for focusing a laser beam, while the flat areas and the concave lens can be used respectively for delivery and diverging of the illumination light. The contact lens portion can be made from a material softer than the main optical portion. The entire assembly can be disposable as a whole or the contact lens portion may have disposable soft inserts attachable to the front end of the contact lens and selectively used to match the curvature of the patient's eye cornea.

The invention discloses a device manufacturing method, a laser processing method, and a laser processing apparatus. The device manufacturing method includes the steps of moving a device at a constant speed while irradiating a laser beam on the device, and processing a part of the device with the laser beam.

There are provided an imaging device and an image processing method capable of simplifying an optical system, reducing cost, and obtaining a restored image having a small noise affect. The imaging device includes an optical system (110) and an imaging element (120) for forming a primary image and an image processing device (140) for forming the primary image into a highly fine final image. In the image processing device (140), filter processing is formed for an optical transfer function (OTF) in accordance with exposure information from an exposure control device (190).

The invention relates to single photo detector cofocal laser triangulation. It provides authentic three dimensional data, solves the issues resulted from the oblique angle of the inspected surfaces. It comprises laser, collimation lens, half reflective half transparent lens, aspheric lens, ring type inner reflector, inspected surface, image forming lens, and side photo detector, with the collimation right in front of the laser beam, the included angle of the half reflective and half transparent lens optical axis and the collimation lens optical axis in 45 degree clockwise. The aspheric lens and the collimation lens share the same optical axis. The center of sphere of the ring reflector shares the same optical axis with the single beam released by the symmetrical axis and the laser, collimation lens and the aspheric lens. The optical axis of the image forming lens is perpendicular with the light beam of the laser. The photo detector is set at the focal position of the imaging lens.

The present invention provides an alcohol concentration telemetering device. In the alcohol concentration telemetering device, under the control of a control module, a detection beam emitted by a detection laser sequentially sweeps through three target detection waves and then is split into two beams (a detection beam and a reference beam) by a beam splitting device. The detection beam passes through an optical collector and a gas environment to be tested, is reflected at a reflecting device, passes through the gas environment to be tested once again, is reflected by the optical collector to adetection detector after passing through the gas environment to be tested, and is photoelectrically converted by the detection detector to obtain a detecting signal. The reference beam is transmittedto a reference detector and is photoelectrically converted by the reference detector to obtain a reference signal. A data processing module is used for collecting the detecting signal and the reference signal including the three target detection wavelengths and calculating the alcohol concentration in the gas environment to be tested. According to the present invention, the cross-absorption interference of alcohol and water vapor is eliminated, and the accuracy of simultaneous detection of alcohol gas and water vapor is improved.

The invention discloses a non-contact conoscopic holography measurement system. The non-contact conoscopic holography measurement system comprises a laser system, a light reflection system, a light receiving system and a polarization splitting prism, wherein the laser system emits laser beams, the light reflection system collects the laser beams passing through an beam expanding and collimating system to one point of a measured object, and the light receiving system collects returned light. The light reflection system comprises a diaphragm, a lamda / 4 slide and an objective lens, wherein the diaphragm, the lamda / 4 slide and the objective lens are arrayed along a forwarding link of the laser beams. The light receiving system comprises a birefringent crystal, a polarizing film and an optical picture taking device in a light propagation path, wherein the optical picture taking device is connected with a computer. The laser system comprises a laser source and a lamda / 2 slide, and the beam expanding and collimating system below the laser source comprises a beam expander and a collimating lens. The non-contact conoscopic holography measurement system is reasonable in design, simple in structure and suitable for acquiring surface height information of common industrial parts 101 mm-102 mm in size; the digital image processing technology and the optical hologram technology can be comprehensively utilized, and the product measurement precision is further improved.

A micro flow control capillary electrophoresis liquid core waveguide fluorescence detector includes a liquid core waveguide capillary, a laser light source, a photodetector, a high-voltage power supply, an electrode, a liquid storage container, a sample tube, a pinhole diaphragm, a filter and a shadow shield; the device makes use of a liquid core waveguide phenomenon and uses the same liquid corewaveguide capillary as a capillary electrophoresis separation channel and for fluorescence signal transduction. In the invention, the light given out by the laser light source can be not focused by alens but directly radiates on the liquid core waveguide capillary through the pinhole diaphragm; the fluorescence led out by the outlet port of the liquid core waveguide capillary can not be collectedbythe lens but directly enters into the photodetector through the filter. The liquid core waveguide capillary is taken as a micro flow control capillary electrophoresis separation channel and an optica l conduction channel, so as to furthest reduce optical elements, simplify an optical system, make the structure more compact, so as to provide a feasible technical route for developing miniature microflow control analytical instruments.

The invention relates to a partition design method of a vehicle LED dipped headlight. Two partially overlapped semicircular or semielliptical regions are drawn on a light distribution screen, and the central positions of the two regions are close to an HV point. The upper edge of the first region is a horizontal line, and the upper edge of the second region is a line segment tilting 15 DEG. Each region mainly corresponds to one group of LEDs, and the shape of an LED illuminant can be in any shape. Light distribution components of the two regions are basically similar, and the light distribution component of the second region is made by mirroring the light distribution component of the first region laterally and rotating by 15 DEG. Non-uniform illumination distribution specified by the standard and hard to design is converted into the two similar semicircular or semielliptical regions by partitioning the two regions in regular shape, the dipped headlight illumination distribution conforming to the standard can be formed by overlapping the two regions, and thus, the design process is greatly simplified.

The invention discloses a high-precision integrated three-dimensional measurement system based on an MEMS. A single reflector enables the size of a chip to be small, the structure is compact, and theweight is light. A laser point light source is incident and imaged through Powell Lenses, so that an optical system is simpler. The reflectivity of an MEMS galvanometer is high, and the utilization rate of light energy is greatly improved. High-speed stable scanning and a wide scanning angle are sufficient to cover a measured object. The precision of a sinusoidal fringe pattern produced by the MEMS is high, and the phase can be adjusted in real time according to the measurement requirement.

The invention provides a head-mounted display device and a display method thereof. The device comprises a carrying device, a first optical module and a second optical module, the first optical module is located in front of a display device carried by the carrying device and forms a certain angle with the display device, the second optical module is located below the display device and forms a certain angle with the display device; the carrying device is used for carrying the display device; the first optical module is used for reflecting the image displayed by the displayed device to the second optical module; the second optical module is used for reflecting the image of the first optical module to a preset position to form a first image, and transmits the images of real objects outside the head-mounted display device to a preset position to form a second image, the second image is superimposed with the first image. The reality augmentation device composed of the display device, the first optical module and the second optical module is larger in view field, and simple in optical system.

The invention discloses a whole optical fiber colorimetric temperature measuring method based on optical fiber bragg grating. Optical fiber bragg gratings FBG1 and FBG2 are used as filters; a spectrum received by a sensing head reaches to the first to second ports of a three-terminal circulator (10) to be coupled to an incidence end of the FBG1; the reflection optical wave of the FBG1 is transmitted to a first photoelectric detector (12) through second to third ports of the three-terminal circulator (10) for photoelectric conversion; similarly, a transmitted spectrum of the FBG1 is transmitted to the incidence terminal of the FBG2 through the first to second ports of the three-terminal circulator (10); the reflection optical wave generated by the FBG2 reaches to a second photoelectric detector (13) through the second to third ports of the three-terminal circulator (11) so as to accomplish the photoelectric conversion to obtain two electric signals of different wavelengths; and the two electric signals of different wave lengths are processed to obtain the tested temperature subsequently. The filter of the system adopts the optical fiber bragg grating to replace an existing light filtering sheet; and the method has the advantages of optical fiber coupling easiness and installation convenience.