Copper Mirrors Φ25/25.4

Security Surveillance Lens - Focal Length [Focal Length ：25mm]: 25mm Security Surveillance Lens - Aperture [Focal Length ：25mm]: 0.8~1.2 Security Surveillance Lens - Reference Field of View (Horizontal/Vertical) [Focal Length ：25mm]: 21.7˚/16.4˚

Daheng Optics provides optical design and manufacturing for infrared lenses. Their main application is thermal imaging: an infrared detector and imaging objective receive the distribution of infrared radiation from a target and project it onto the detector's photosensitive elements to obtain a thermal image corresponding to the object's surface temperature distribution. In simple terms, an infrared imager converts invisible infrared energy into a visible thermal image, whose colors represent different object temperatures. Main applications include security surveillance, vehicle and marine navigation assistance, medical thermal imaging, and gun-sight systems. Security surveillance has substantial demand and is a major infrared-product market, including urban security, petroleum storage, power monitoring, and forest-fire prevention. Vehicle assistance systems avoid glare and improve safety and represent a future development trend. Marine navigation generally uses large, long-focal-length lenses to improve recognition of scenes during ocean voyages. Medical temperature-measurement lenses commonly have short focal lengths of 8-25mm and observe overall or local temperatures at distances of 2-3 meters to assess changes in clinical cases. Gun-sight lenses are commonly manually focused; specialized military systems may use dual-field-of-view lenses.

VY Optoelectronics Co.,Ltd. offers top-tier classics camera lens and element repair services. In the world of photography, some classics never fade, and Classics Vintage Camera Lens are one such legend. They not only capture history but also add soul to countless photographic works with their unique optical design and beautiful bokeh effects. However, over time, these precious lenses may suffer from wear and damage. We offer top-tier Classics Vintage Camera Lens lens and element restoration services. Our team consists of experienced optical engineers and technicians who are proficient in various lens structures and have extensive restoration experience. They can restore your Petzval lens to its optimal condition. 1. Lens Element Restoration and Polishing: Addressing issues such as scratches and fungus on the lens elements with professional cleaning, polishing, and coating treatments to ensure the lens elements shine anew. 2. Mechanical Structure Maintenance: Inspecting and repairing the internal mechanical structures of the lens to ensure smooth operation of the aperture and focus mechanisms. 3. Exterior Restoration: Refining and repairing the lens exterior to restore its appearance to like-new condition. 4. Professional Calibration: Precisely calibrating the restored lens to ensure its optical performance is at its best.

Acousto-optic Medium: Quartz Crystal Wavelengths: 1064 nm Operating Frequency: 40.68 MHz

The air-cooled 5041-290 acousto-optic Q-switch is designed for 1064 nm systems requiring compactness and reliable Q-switching. Operating at 40.68 MHz, it has a 1.5 mm × 1.5 mm aperture and conduction cooling through its base. Crystalline quartz supports stable optics, controlled pulse output, and good integration for precision laser platforms. It suits OEM systems with demanding space, thermal-management, and stability requirements. Model designation:5041-290 (97-03279-01).

Acousto-optic Medium: Quartz Crystal Wavelengths: 1064 nm Operating Frequency: 80 MHz

The air-cooled 5080-290 acousto-optic Q-switch is designed for 1064 nm laser systems requiring compactness and reliable Q-switching. It operates at 80 MHz with a 1.2 mm × 1.2 mm aperture and conduction cooling through its base. Crystalline quartz provides stable optical performance, low insertion loss, and high-contrast pulse modulation. It suits OEM integration requiring compact structure, reliability, and consistency. Model designation:5080-290 (97-02913-05).

Acousto-optic Medium: Quartz Crystal Wavelengths: 1064 nm Operating Frequency: 80 MHz

The air-cooled5080-2910 acousto-optic Q-switch is designed for1064 nm laser systems requiring compact structure and reliable Q-switching. It operates at80 MHz, has a small1 mm-class aperture, and uses conduction cooling through its base. Crystalline quartz provides stable optical performance, low insertion loss, and controlled pulse output for precision OEM laser systems requiring compactness, beam stability, and reliability. Model designation:5080-2910 (97-03278-03).