High Reflective Broadband Dichroic Mirrors

1、What Metallic Coated types can Uni-Optics supply?

Uni-Optics mainly offers four coating types, including:

1) UV Enhanced Aluminum : Ravg > 85% from 250nm to 400nm

2) Protected Aluminum: Ravg > 87% from 400nm to 800nm

3) Protected Silver: Ravg > 95% from 400nm to 20um

4) Protected Gold: Ravg > 98% from 650nm to 16um

2、What are the features of Metallic coated mirror?

Metallic coated mirror have many key features below:

Wide spectral range

Not sensitive to the incidence angle and polarization state

Low cost

Non-durable

Relatively low reflectance

Low laser damage threshold

3、What UNI Optics can do for you?

Common Specifications:

Substrate Materials: N-BK7, Fused silica, Pyrex；Float glass

Dimensional tolerance: +/-0.1mm

Surface quality:  60-40

Parallelism:  3’

Flatness: λ/4 per 25mm@633nm

Bevel: Protective

One surface: Polished and Metallic coating

The other surface: Fine ground

Note: Aluminum is the most widely used metal reflection film, from near UV to near IR, have high reflectivity, and with low cost. Silver has higher reflectivity in the visible and near infrared wavelength than the aluminum film, but the silver in the air will be rapid oxidation, color darkening, makes the film performance and firmness declined rapidly. Gold film has a good consistency with high reflectivity in the near, middle and far infrared range, can control the thermal radiation effectively, but it is relatively soft, easy bruising, and should be paid very close attention to clean, and the cost is very high.

For high-precision machine vision applications, broadly covering dimensional inspection and surface defect detection in consumer electronics, robotic vision guidance and positioning, as well as automotive component in-line measurement, and intelligent logistics & sorting systems and so on.

· High image contrast
· High brightness uniformity
· Suitable for 2.4u sensor

· Resolution up to 10MP

· Compact, lightweight and durable

Product information: Custom designs are available upon request.

For high-precision machine vision applications, broadly covering dimensional inspection and surface defect detection in consumer electronics, robotic vision guidance and positioning, as well as automotive component in-line measurement, and intelligent logistics & sorting systems and so on.

· High relative illumination and high contrast
· Low distortion and excellent corner brightness

· High resolution

· Compatible with 1" and 1.1" 12MP camera

Product information: Custom designs are available upon request.

For SMT Assembly Inspection, Food/Beverage/Pharmaceutical Packaging Inspection , Printing & Label Inspection, etc.

· Developed for 2/3" image format
· Compact and lightweight design
· Low distortion
· High relative illumination

· Focus and iris fixed with screw

Product information: Custom designs are available upon request.

For semiconductor wafer internal defect inspection, solar cell & glass surface testing, plastic & waste material sorting, food and agricultural non-destructive grading, pharmaceutical packaging inspection, multi-spectral laboratory imaging, high-speed industrial surface inspection, electronic police license plate capture.

· High relative illumination and high contrast

· High resolution

· Compatible with 1" and 1.1" 20MP camera

Match with Teledyne camera, for Banknote Inspection, Printing Inspection 

· Ultra High Resolution 
· Large Format Lens

For Security Surveillance, Vehicle & Drone Obstacle Avoidance, Semiconductor Wafer Inspection, etc.

· Developed for 1" image format

· Large Aperture, up to F1.4

· Compact and lightweight design

Longpass filters are ideal for a variety of applications, such as gas monitoring, temperature, sensing, thermal imaging and motion sensing, etc. Longpass filters block shorter wavelengths and transmit longer wavelengths. Blocking can be from reflectance, absorption or a combination. Transmission in the pass band can be enhanced with an antireflection coating on the second surface.