59 results about "Glass prism" patented technology

The invention discloses a method called optical interferometry about spectrometer, imaging and simultaneous phase-shifting: enlarge polarization laser beam emitted by laser source and get linearly polarized planer source, then, enter the interference system of linearly polarized planer source and get a interference field where testing wavefront and reference wavefront have collinear beam and polarization direction is vertical each other. beam of light of interference field is divide ed into 4 beams of light whose space is distributed symmetrically and whose intensity is symmetrical after passing through 1 / 4 wave plate and light dividing system of combined glass prism, the four beams of light projects to ccd focus plane after it is through polaroid analyzer, thus, we get four interference fringe pattern whose phase move 90 degrees after a sampling at a high speed. At the same time, it discloses the device using the method. According to the device and method of this invention, the principle is clear and the method is simple, the device possesses miniaturization. It realizes dynamic measuring whose optic interference is high-accuracy at the scene; it is simpler and more convenient to measure the course.

An ophthalmologic lens assembly includes a glass prism bonded to a meniscus lens at a posterior end of the glass prism. The glass prism is surrounded by a housing that is bonded to the meniscus lens. In one embodiment, the housing and a meniscus lens blank are processed by grinding and polishing the housing and meniscus lens blank together to form a posterior lens surface of a meniscus contact lens. In other embodiment, only the meniscus lens blank is processed by grinding and polishing to form a posterior lens surface of a meniscus contact lens.

The invention discloses a waveguide raman scattering cavity based on a twice-coupling prism. The waveguide raman scattering cavity comprises a glass substrate, a glass gasket and a glass prism which are sequentially overlapped, wherein a sample chamber is formed between the glass substrate and the glass prism, the sample chamber is provided with a sample inlet channel and a sample outlet channel, a lower-layer metal membrane is deposited on the upper surface of the glass substrate, an upper-layer metal membrane is deposited on the lower surface of the glass prism, and the glass prism can meet the conditions that incident light from the lateral side of the glass prism is reflected by the lower surface of the glass prism, then fully reflected by the upper surface of the glass prism and then reflected by the lower surface of the glass prism to be emitted from the other lateral side of the glass prism. The waveguide raman scattering cavity of the structure can achieve low-transmittance narrow-band filtering and obtain a high-sensitivity raman spectrum without using band-stop filter plates.

The invention discloses an optical detection sensor for microcystin. The optical detection sensor comprises a linear polarization light source, a 45-degree / 45-degree / 90-degree glass prism, a sensing chip and a spectrum analyzer and is characterized in that a silicon circulation tank is arranged on the sensing chip; the sensing chip comprises a glass sheet, a gold layer coated on the surface of one side of the glass sheet as well as a microcystin molecularly imprinted membrane modified on the surface of the gold layer. The optical detection sensor disclosed by the invention has the beneficial effects that firstly, a molecular imprinting technique is adopted for forming a sensitive layer of the sensor, so that specific recognition and adsorption efficiency for the microcystin are enhanced, the specificity of detection means is improved, and the detection time is shortened; secondly, by the use of a surface plasma optical detection technology, the sensitivity is improved, and the performance of the sensor is improved; thirdly, the whole sensor is simple and quick to operate, is low in requirement on operators, and provides effective help for highly sensitive detection of the microcystin.

Provided are a two-dimensional planar photonic crystal superprism device and a method of manufacturing the same, in which a manufacturing process is simplified using a nanoimprint lithography technique, and thus price-reduction and mass production are facilitated. The two-dimensional planar photonic crystal superprism device includes: a single-mode input waveguide comprising a straight waveguide having a taper structure and a bending waveguide; a superprism formed on an output end side of the single-mode input waveguide and comprising a slab and a photonic crystal superprism; and a single-mode output waveguide comprising a straight waveguide having a taper structure and a bending waveguide, and formed adjacent to the photonic crystal superprism. Using the two-dimensional planar photonic crystal superprism device, it is possible to facilitate manufacturing of nano-photonic integrated circuits, photonic crystal integrated circuits and nano-photonic systems. In addition, a wavelength-selectable photonic crystal superprism device using high dispersion of photonic crystal, which is several hundred times the dispersion of conventional glass prism, can be manufactured using thermal / hot and ultraviolet nanoimprint lithography techniques corresponding to nano-manufacturing technology.

An optical power prism that may be used in folded lens systems that consists of a glass prism and a glass lens attached to a surface of the prism using a thin layer of optical glue or by optical contact. The glass lens does not have a flange and thus the prism can be smaller than prisms used in conventional power prisms with the same lens effective area, thus reducing the Z-height of the power prism when compared to conventional power prisms. An optical glass may be used for the lens that has a higher refractive index than can be provided by optical plastic which allows the lens to be thinner than plastic lenses. The lenses may be formed by molding a glass wafer to form lens shapes on a first surface of the wafer; the molded wafer is then ground from a second surface to singulate the lenses.

The invention relates to a microscope having an illumination beam path with wide field illumination of a sample and a first detection beam path having a spatially resolved surface receiver, which is reached by a first part of the detection light coming from the sample via the first detection beam path, or an image divider assembly for a microscope. In order to lengthen the optical path length, at least a second part of the detection light coming from the sample is masked out of the detection beam path and, via deflection means belonging to the detection beam path, is led into a second detection beam path and, preferably via further deflection means, is deflected back in the direction of the detection in such a way that detection light is applied to at least two partial regions beside one another on the surface receiver. At least the second part of the detection light runs in an optical element having an optical density that is increased as compared with the first detection beam path, in order to lengthen the optical path length, and the optical element is designed to be displaceable at an angle, preferably perpendicular, to the optical axis of the first detection beam path in order to adjust the optical path length, and has flat surfaces, at least on the light entry and light exit side thereof; a prism is provided, preferably a glass prism, preferably at least in the second detection beam path after a first beam deflection, for deflection in a direction parallel to the first detection beam path, in order to increase the path length and for reverse deflection.