PMID- 24663995
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20141112
LR  - 20181023
IS  - 1094-4087 (Electronic)
IS  - 1094-4087 (Linking)
VI  - 22
IP  - 6
DP  - 2014 Mar 24
TI  - Speckle reduction and maintaining contrast in a LASER pico-projector using a 
      vibrating symmetric diffuser.
PG  - 6464-77
LID - 10.1364/OE.22.006464 [doi]
AB  - We proposed a design for a LASER pico-projector with a low speckle contrast value 
      and high contrast ratio that maintains system efficiency. The method for speckle 
      contrast reduction utilizes two diffusers and a Voice Coil Motor (VCM) 
      oscillator. The two different diffusers for a high contrast ratio and high system 
      efficiency can be divided into two categories. In Category 1, the speckle 
      contrast value can be decreased to 2.80% by using a circular symmetric diffuser. 
      At the same time, the full-on/full-off (FO:FO) contrast ratio can be maintained 
      within 1200:1-1300:1, but the system efficiency decreases 1.50%. In Category 2, 
      the speckle contrast value can be reduced to 6.50% by using an elliptically 
      scattering diffuser. At the same time, the FO:FO contrast ratio can be maintained 
      within 1300:1-1400:1, and the system efficiency decreases by only 1.00%.
FAU - Pan, Jui-Wen
AU  - Pan JW
FAU - Shih, Chi-Hao
AU  - Shih CH
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - Opt Express
JT  - Optics express
JID - 101137103
EDAT- 2014/03/26 06:00
MHDA- 2014/03/26 06:01
CRDT- 2014/03/26 06:00
PHST- 2014/03/26 06:00 [entrez]
PHST- 2014/03/26 06:00 [pubmed]
PHST- 2014/03/26 06:01 [medline]
AID - 281817 [pii]
AID - 10.1364/OE.22.006464 [doi]
PST - ppublish
SO  - Opt Express. 2014 Mar 24;22(6):6464-77. doi: 10.1364/OE.22.006464.