UV protective lens

UV protective lens

Supplier
Szgladsome
Category
Optical Lenses
Origin
China

The UV protective lens, also called an ultraviolet filter, mainly refers to a kind of filter used in digital cameras, which serves to protect the lens and improve image quality. Generally, UV filters are usually colorless and transparent; some, due to the addition of an anti-reflection coating, appear purple or purplish-red at certain angles. UV filters are usually used to protect expensive coated lenses, but this is actually only one of their functions. UV filters can weaken the blue tint caused by ultraviolet light, and for digital cameras they can also eliminate the interference of ultraviolet light on the CCD, helping to improve clarity and color effects. However, with the widespread use of CMOS, sensitivity to ultraviolet light has been greatly reduced, so nowadays UV filters are generally mainly used to protect the lens. The main function of a UV filter is to absorb ultraviolet light with wavelengths below 400 nm, with no filtering effect on other visible/invisible light. The reason it can filter ultraviolet light is that the lens contains lead, so a UV filter is somewhat heavier than other lenses of the same size and thickness. At the same time, a UV filter can prevent the coating on the lens surface from directly contacting the external environment, playing a protective role.

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Overview

The UV protective lens, also called an ultraviolet filter, mainly refers to a kind of filter used in digital cameras, which serves to protect the lens and improve image quality. Generally, UV filters are usually colorless and transparent; some, due to the addition of an anti-reflection coating, appear purple or purplish-red at certain angles. UV filters are usually used to protect expensive coated lenses, but this is actually only one of their functions. UV filters can weaken the blue tint caused by ultraviolet light, and for digital cameras they can also eliminate the interference of ultraviolet light on the CCD, helping to improve clarity and color effects. However, with the widespread use of CMOS, sensitivity to ultraviolet light has been greatly reduced, so nowadays UV filters are generally mainly used to protect the lens. The main function of a UV filter is to absorb ultraviolet light with wavelengths below 400 nm, with no filtering effect on other visible/invisible light. The reason it can filter ultraviolet light is that the lens contains lead, so a UV filter is somewhat heavier than other lenses of the same size and thickness. At the same time, a UV filter can prevent the coating on the lens surface from directly contacting the external environment, playing a protective role.

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Supplier Information

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Szgladsome
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Shenzhen Gladsome Photoelectric Technology Co., Ltd. was founded in 2007 and is located in Longhua District, Shenzhen. It has been deeply engaged in the field of high-performance custom optical coating for more than ten years, with mature production and R&D experience, and is a manufacturer focusing on core technology R&D and precision manufacturing in the filter field. With exquisite fine film system design capabilities, the company can efficiently improve light transmission efficiency, precisely control reflection effects, and flexibly regulate polarization states across the full spectrum of ultraviolet, visible, and infrared (near-infrared, short-wave infrared, mid-wave infrared, long-wave infrared), fully adapting to high-end optical application needs in different industries and scenarios. The company's business scope fully covers high-durability metal coatings (aluminum, silver, gold), as well as complex multilayer dielectric coatings carefully designed to meet extremely high precision standards. Relying on a series of advanced deposition processes, we create industry-leading customized optical solutions that can precisely match various core technical requirements such as high laser-induced damage threshold (LIDT), ultra-narrowband filters (FWHM 0.5–3 nm), high rejection filters (up to OD6 for single piece, OD8 for cemented), and multi-bandpass filters, providing customers with full-scenario optical coating and component solutions. I. Main Business and Product System (1) Optical Coating Technology Gladsome has strong technical strength and rich practical experience in the field of optical coating, equipped with multiple high-vacuum coating equipment and ion-assisted deposition (IAD) technology, enabling high-precision film system design and nanometer-level film thickness control to ensure the stability and consistency of coated products. Main products include: Bandpass (BP), high reflection (HR), partial reflection (PR) Beamsplitter (BS) and polarizing beamsplitter (PBS) Broadband anti-reflection (BBAR), single-wavelength AR Laser protective coating, filter coating, cut-off coating, etc. The above products can cover a wide band range from ultraviolet, visible to near-infrared, strictly meeting the requirements of high-end scenarios such as scientific research experiments and industrial lasers. (2) Optical Components and Precision Assemblies The company has full-chain manufacturing capabilities from optical substrate processing, precision polishing to vacuum coating, enabling integrated supply from core components to precision assemblies, greatly improving delivery efficiency and product adaptability. Products provided include: Flat optical components: narrowband filters, bandpass filters, notch filters, neutral density filters, longpass filters, shortpass filters, dichroic filters, beamsplitters, mirrors, polarizers, mid- and far-infrared filters, colored optical glass, etc. Optical glass lenses: plano-concave, plano-convex, biconcave, biconvex, cemented achromatic lenses, etc., customizable specifications available Infrared optical components: ZnSe lenses, ZnS lenses, chalcogenide glass lenses, germanium lenses, silicon lenses, etc., with flat, spherical and aspherical processing services available Value-added services: fiber coating, infrared-transmitting acrylic processing, optical lens customization, etc. Product sizes can cover from small precision optical components to large-aperture optical windows, with precision up to λ/10 and surface quality up to 10-5, fully meeting the stringent precision requirements of high-end equipment. (3) Optoelectronic Systems and Application Solutions Gladsome is not only a professional optical component manufacturer, but also a one-stop optoelectronic system solution provider. It can provide customized system solutions for the personalized needs of scientific research users and industrial enterprises, including: Design and implementation of optical components in laser optical path construction and beam shaping solutions Optical component design for display and imaging systems Development and customization of optical components for photoelectric detection and calibration modules Manufacturing and assembly of optical components in customized optical integrated components II. Technical Advantages and R&D Strength Strong R&D team: Highly educated technical personnel account for more than 30%, and core members have many years of experience in optical coating and component R&D, deeply engaged in core technical fields of the industry. Complete software and hardware facilities: Equipped with professional film system simulation design software and advanced testing instruments (spectrophotometer, interferometer, profilometer, etc.), realizing refined management and control of the entire process from design, production to testing. Significant independent R&D achievements: In key fields such as high-power laser film damage resistance, thermal stability of high-reflection film systems, and broadband low-loss transmission films, it has multiple independent R&D achievements, with technical level at the forefront of the industry. Deep industry-university-research integration: Established long-term joint R&D cooperation mechanisms with multiple universities, relying on university scientific research resources to continuously promote technological innovation and product iteration, enhancing core competitiveness. III. Quality System and Management Standards Gladsome always regards product quality as the core of enterprise development and has established a complete ISO9001 quality management system, strictly following the quality policy of "quality, customer first, pursuit of excellence, continuous improvement". The entire production process follows strict process control standards, from substrate selection, surface treatment, clean environment processing to final product inspection, all strictly implemented in accordance with international optical standards (MIL-O-13830A) to ensure product quality meets standards. The company has introduced an ERP process-based management model to achieve full-process data traceability of material procurement, production processes, and quality inspection, ensuring the quality stability and reliability of every optical component from the source. At the same time, all products of the company have passed SGS product certification, comply with EU ROHS requirements, and meet the quality standards of high-end markets at home and abroad. IV. Market Layout and Partners At present, the company's customer network has covered mainland China, Europe and America, Southeast Asia, Japan and South Korea, and many other countries and regions. It has established long-term stable strategic partnerships with many well-known laser equipment enterprises and scientific research institutes at home and abroad. With high-quality products and professional services, it has become a trusted optical supplier for domestic and foreign customers. Products are widely used in many high-end fields, including: Laser processing and measurement industry: laser marking, welding, cutting equipment, etc. Photoelectric detection and precision instruments AR/VR head-mounted displays and projection display systems Infrared and space optics applications Precision spectral analysis: Raman spectrometers, fluorescence spectrometers, atomic absorption spectrometers, etc. Laser systems: LiDAR, laser communication, laser medical treatment, laser linewidth purification, etc. Biomedical: fluorescence detection, flow cytometers, microplate readers, biochemical analyzers, etc. Quantum technology: quantum computing, quantum sensing, etc. Aerospace and defense: hyperspectral imaging, guidance, etc. The company has an ISO-certified production base equipped with multiple advanced coating systems, building a complete and mature manufacturing system that can fully support diverse application scenarios in many high-end fields such as aerospace, defense, medical, and quantum computing. From rapid prototyping to large-scale mass production, with deep professional technical accumulation and strict quality control, we tailor customized coating products and solutions with stable performance, excellent quality, and strong adaptability for customers' difficult optical specification requirements, helping customers enhance their core product competitiveness. Gladsome always takes "providing customers with high-quality, efficient, and professional optical products and services" as its mission, and with favorable prices, reliable quality, and perfect service, provides customers with a one-stop procurement choice for optical products, working together with partners to build a new future for the optical industry.

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