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Front Surface Mirror

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  Front Surface Mirror Ecoptik designs and manufactures custom optical mirrors  with high reflectance, which can double the output power of the laser; it is reflected by the first reflecting surface, the reflected image is not distorted, and there is no ghosting.   Description Of Front Surface  Mirror   The Ecoptik mirror with high reflectance can double the output power of the laser; it is reflected by the first reflecting surface, the reflected image is not distorted, and there is no ghosting, which is the reflection of the front surface. If a common optical mirror is used as the second reflecting surface, not only the reflectance is low, but also the wavelength is not selective, and ghosting is likely to occur. With the front coated film mirror, the obtained image is not only high in brightness, but also accurate and unbiased, the picture quality is clearer and the color is more realistic. F ront coated mirror s are widely used for optical high fidelity scanning reflection imaging.
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Filter

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  Filter The optical glass filter is an optical device used to select the desired radiation band. One of the common characteristics of filters is that there is no filter to make the image of celestial bodies brighter, because all filters absorb certain wavelengths, which makes the object darker. Its main feature is that the size can be made quite large. Thin film filters generally transmit longer wavelengths and are mostly used as infrared filters. The latter is to form a certain thickness of high refractive index or low refractive index metal-dielectric-metal film or all-dielectric film alternately on a certain substrate by vacuum coating, forming a low-order, multi-stage tandem solid method Brie-Perot interferometer. The choice of film material, thickness and series connection mode is determined by the required center wavelength and transmission bandwidth. Ecoptik  as a professional optical filters ltd , offers different types of custom optic c al filters , such as optical comb filte
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USAF 1951 resolution test targets/chart

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  First of all, we talk about the resolution target, which is classified on the official website of famous brand as a kind of measuring plate.   But what we're talking about today is the USAF 1951 resolution chart.   The product is a kind of calibration chart, which is designed and manufactured according to the US military standard MIL-STD-150A.Its different resolution units use corresponding groups and element markers, and the corresponding resolution of each unit can be obtained by looking up the table. It has a wide range of applications, from the complex optical systems of aviation, aerospace and astronomical telescopes to the manufacturing and production of precision optical products  commonly used in daily life. It is not only suitable for the imaging quality evaluation of various optical instruments and equipment ( such as stereo microscope, collimator and telescope, etc. ), but also very suitable for the imaging quality evaluation of various lenses and custom optical compon
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What is the Difference Between Spherical and Aspheric Lenses?

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  What is a spherical lens? What is an aspheric cylindrical lens ? What is the difference between spherical and aspheric lenses ? Why are aspheric lenses recommended? Let's talk about the difference between the two.   The spherical lenses have a spherical surface, and the radius of curvature of the entire lens is the same. On the contrary, the surface of an aspheric cylinder  lens is more complicated, and the curvature gradually changes from the center to the edge. These design differences can reduce the number of elements in the assembly and result in thinner and lighter lenses.   The surface of the spherical lens looks like a part of a spherical or cylindrical surface.   The curve is the same across the entire surface. If you draw a straight line to follow the curve, it will form a circle. Because the design is simple, the spherical lens design is usually cheaper.   The surface of an aspheric lens must not be part of a sphere or cylinder. The curve of some parts of the lens surfa
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What is a Double Concave Lens?

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  1. Introduction to double concave lens A double concave lens is also called a negative spherical lens. The middle of the lens is thin, the edge is thick, and it is concave, so it is also called a concave lens, which has a divergent effect on light.   The imaging law of the concave lens is: when the object is a real object, it becomes an upright, reduced virtual image, and the image and the object are on the same side of the lens. The concave lens has a divergent effect on the light, so the lens is also called a divergent lens, a negative spherical lens.   2. Features of biconcave lens: A double concave lens is concave on both sides and has the same radius of curvature. A double concave lens with a negative focal length is usually used for beam collimation, increasing (decreasing) the focal length or enlarging (shrink) the image.   The double concave lens has a negative focal length and is often used in imaging or beam collimation applications. The coated lens is also widely used in v
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Polarization Beamsplitter Cube (PBS)

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  Polarizing Cube Beamsplitters  Introduction Polarization beamsplitter cube  split randomly polarized beams into two orthog-onal, linearly, polarized components-S-polarized ligh is reflected at a 90°.   Angle while P-polarized light is transmitted. Each beamsplitter consists of a pair of precision high tolerance right angleprism cemented together with a dielectric coating on the hypotenuse of one of prism.   The coatings have been designed to hold both the S-and P-polarization components to the same ratio of reflection-to-transmission over aspecific laser wavelength region.   This means that they will not change the state of polarization of the incident beam. The low polarization dependence of the metallic-dielec-tric coating allows the transmission and reflection for S-and P-polarization states to be within 6% of each other. All entrance and exit surfaces are coated with a high efficiency, narrowband, anti-reflection coating. We offer both broadband and single wavelength.   Standard
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