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Reflectors - Lenses

Depending on the place of application, Lenses or Reflectors may be used for diverting the light to the desired area or object, creating different lighting effects in different applications and decreasing glare depending on design features.

 

In lightings with conventional light sources and reflectors, only 60% of total luminous flux from the light source can be directed to the object to be illuminated. 

 

LEDs emit light with wide angle to one direction. When proper lens are used, it is possible to use 80% of light with LED. When quality lenses are used, this efficiency can reach over 90%.

 

LAMP 83 uses reflectors and lenses at different angles, which are specially designed in its products and suit every need.

 

Single LED:

Reflector applications for single LEDs are not very common. However LAMP 83 has made specially designed polymer multi reflectors and lenses for single LEDs.

 

COB LED:

In COB LED more than one chip are combined in one package under a layer of phosphorus by connecting chips with series and parallel connections. COB doesn’t have a single focal point like conventional luminaries (HID). Thus there must be special reflector designs for COB LEDs.

 

Correct Reflector Selection / Design:

The following criteria should be considered while selecting/designing reflector:

- COB LED that used

- Holder that used to hold COB onto the heat sink

- Reflector’s geometry and design

- Selection of reflector’s material and production method

- Diffuser

- Luminary Body

 

Two kinds of reflectors are used in LAMP 83 products:

 

Anodized Aluminum Reflectors: These reflectors are produced by forming high purity aluminum with spinning method and then putting it into chemical polishing (anodizing) procedure.

 

Vacuum Metalized Reflectors: These reflectors are produced by turning aluminum and silver parts into plasma state and coating onto reflector surfaces in a cabin with a pressure value almost 0.

 

Differences between Vacuum Metalized Reflectors and Anodized Aluminum Reflectors:

- At the same conditions Vacuum Metalized Reflectors has 3% more brightness and efficiency than Anodized Aluminum Reflectors. If silver is used instead of aluminum, efficiency will increase even more.

- With vacuum metalizing method, reflectance characteristic can be transferred not only on spinning aluminum material, but also on many materials. So much so that; reflectors can be produced from advanced plastic materials and then the top of the reflectors can be coated with aluminum or silver material. In this case with applying plastics, which have very good surface smoothness, more efficient reflectors can be produced.

- For vacuum metalizing process, if the varnish is well applied onto the reflector surface, production fault tolerances will less occur comparing to aluminum anodized reflectors.

 

According to luminary design and technical requirements, LAMP 83 chooses correct reflector type and provides the most successful optical solutions to its customers.