brdoptical

  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

  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

  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

  This is a custom optical product. It combines optical wedge, window and spherical lens.   Description Of Wedge Window  With Integrated Lens   This is a custom optical prism. It combines optical wedge, window and spherical lens. It is a rare precision optical component.   Specification Of Wedge Window With Integrated Lens Material Corning 7980 / Schott KG2 Dimension Upon the customer's drawing Centrer sphere diameter 26.1mm Center thickness 6.8mm Clear aperture >90% over sides Wedge angle 8.97Deg Wedge angle tolerance ±0.01° Surface accuracy Better than λ/4 @632nn Surface quality 60/40 Scratch /Dig Coating AR Coating @ 1300nm-1800nm   Ecoptik (also known as BRD Optical ) can customize and process various high- precision optical products , such as spherical mirrors, aspheric mirrors, prisms, mirrors, filters, coating service, etc.  

  Wedge Prism : Right angle prism, Dove prism, Beam splitter, Penta Prism, Corner prism, Trapezium Prism, Rhomoboid Prism, Roof Prism, Cube prism, customized prisms,etc.   If you want to get the wedge prism price , please contact us. Description Of Wedge Prism Ecoptik (also known as BRD Optical) offers wedge prisms : Right angle prism, Dove prism, Beam splitter, Penta Prism, Corner prism, Trapezium Prism, Rhomoboid Prism, Roof Prism, Cube prism, customized prisms, etc. If you want to get the wedge lens  price, please contact us now!   Specifications Of Wedge Prism   Flatness 2λ-λ/10 Surface Quality 80/50-10/5 Angle Tolerance 3’-15’’ Clear Aperture >85%-95% Chamfer 0.3mm×45°-0.1mm×45° Coating As per customer’s requirement   As one of wedge prism manufacturers , we will do our best to meet all the needs of customers.   Now the price of custom optical components  is reasonable, if you have needs to buy precision optical components , please contact us.  

  Ecoptik UV Optical dome lens is composed of two parallel optical surfaces, (A convex surface & A Concave surface). Normally we can control the parallel tolerance <±2μm. A perfect parallel surface, in the imaging, the image does not distort, and in the measurement of light, the light does not distort. Ecoptik Dome, the optical properties are unique, which are produced by the optical technology of optical grinding and polishing.   Ecoptik Dome lens mainly is hemisphere, hyper-hemisphere and customized designing. Whether it is a visible dome, UV dome  or IR dome, Ecoptik also known as BRD Optical) Dome has been confirmed in the international market. Ecoptik dome is found in areas such as defence technology, weather monitoring and optical imaging.   Description Of Ultraviolet (UV) Dome Ecoptik (also known as BRD Optical) dome lens is composed of two parallel optical surfaces, (A convex surface & A Concave surface). Normally we can control the parallel tolerance <±2μm. A per