PMID- 29221000
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20180207
LR  - 20181023
IS  - 1094-4087 (Electronic)
IS  - 1094-4087 (Linking)
VI  - 25
IP  - 24
DP  - 2017 Nov 27
TI  - Compact illumination optic with three freeform surfaces for improved beam 
      control.
PG  - 29627-29641
LID - 10.1364/OE.25.029627 [doi]
AB  - Multi-chip and large size LEDs dominate the lighting market in developed 
      countries these days. Nevertheless, a general optical design method to create 
      prescribed intensity patterns for this type of extended sources does not exist. 
      We present a design strategy in which the source and the target pattern are 
      described by means of "edge wavefronts" of the system. The goal is then finding 
      an optic coupling these wavefronts, which in the current work is a monolithic 
      part comprising up to three freeform surfaces calculated with the simultaneous 
      multiple surface (SMS) method. The resulting optic fully controls, for the first 
      time, three freeform wavefronts, one more than previous SMS designs. Simulations 
      with extended LEDs demonstrate improved intensity tailoring capabilities, 
      confirming the effectiveness of our method and suggesting that enhanced 
      performance features can be achieved by controlling additional wavefronts.
FAU - Sorgato, Simone
AU  - Sorgato S
FAU - Mohedano, Ruben
AU  - Mohedano R
FAU - Chaves, Julio
AU  - Chaves J
FAU - Hernandez, Maikel
AU  - Hernandez M
FAU - Blen, Jose
AU  - Blen J
FAU - Grabovickic, Dejan
AU  - Grabovickic D
FAU - Benitez, Pablo
AU  - Benitez P
FAU - Minano, Juan Carlos
AU  - Minano JC
FAU - Thienpont, Hugo
AU  - Thienpont H
FAU - Duerr, Fabian
AU  - Duerr F
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Opt Express
JT  - Optics express
JID - 101137103
EDAT- 2017/12/10 06:00
MHDA- 2017/12/10 06:01
CRDT- 2017/12/10 06:00
PHST- 2017/12/10 06:00 [entrez]
PHST- 2017/12/10 06:00 [pubmed]
PHST- 2017/12/10 06:01 [medline]
AID - 376898 [pii]
AID - 10.1364/OE.25.029627 [doi]
PST - ppublish
SO  - Opt Express. 2017 Nov 27;25(24):29627-29641. doi: 10.1364/OE.25.029627.