scholarly journals A Study of Optical Design on 9× Zoom Ratio by Using a Compensating Liquid Lens

2015 ◽  
Vol 5 (3) ◽  
pp. 608-621 ◽  
Author(s):  
Chih-Ta Yen ◽  
Jyun-Min Shih
Keyword(s):  
2012 ◽  
Vol 32 (8) ◽  
pp. 0822001
Author(s):  
李正达 Li Zhengda ◽  
杨波 Yang Bo

2020 ◽  
Vol 10 (20) ◽  
pp. 7331
Author(s):  
Yi-Chin Fang ◽  
Yih-Fong Tzeng ◽  
Chan-Chuan Wen ◽  
Chao-Hsien Chen ◽  
Hsiao-Yi Lee ◽  
...  

In the field of vehicle lighting, due to the diode laser, its small size and high energy conversion efficiency, it can be effectively used as the headlight source of high beam. In recent years, it was adopted by European advanced car manufacturers as a new generation of automotive headlight lighting products. The current mature technology on the market is to extend the laser beam by means of reflection and to use a single high-power laser as the light source to meet the needs of surface lighting. In this research, we propose a new integrated optical design for an automotive headlight system with the rod lens, gradient-index lens (GRIN lens) and freeform lens to expand the laser beam. With regard to the diffusion of the beam by reflection and refraction, the liquid lens is used as a switch for the high beam and low beam lights to meet the needs of vehicle lighting functions and to use low-power diode lasers to synthesize the array light source. Compared with the 24-W LED headlight module available in the current market, the energy saved by this proposed optical design can increase efficiency by an average of 33%. The maximum illuminance is 56.6 lux in the high-beam mode, which is 18% higher than the standard value. Let the laser light meet the lighting requirements of regulatory standard values even beyond.


2010 ◽  
Author(s):  
Tianling Yang ◽  
Liqiang Wang ◽  
Huilong Duan
Keyword(s):  

2010 ◽  
Author(s):  
Eric Simon ◽  
Bruno Berge ◽  
Franck Fillit ◽  
Hilario Gaton ◽  
Martin Guillet ◽  
...  

2007 ◽  
Author(s):  
Chao-Chang Hu ◽  
Yi C. Fang ◽  
Chen-Mu Tsai ◽  
Han-Ching Lin ◽  
Han-Wei Su ◽  
...  

2010 ◽  
Author(s):  
A. Santiago-Alvarado ◽  
F. Iturbide-Jiménez ◽  
S. Vázquez-Montiel ◽  
Moisés E. Ramírez Guzmán
Keyword(s):  

2009 ◽  
Vol 48 (9) ◽  
pp. 1741 ◽  
Author(s):  
Jung-Hung Sun ◽  
Bo-Ren Hsueh ◽  
Yi-Chin Fang ◽  
John MacDonald ◽  
Chao-Chang Hu

Author(s):  
John W. Coleman

In the design engineering of high performance electromagnetic lenses, the direct conversion of electron optical design data into drawings for reliable hardware is oftentimes difficult, especially in terms of how to mount parts to each other, how to tolerance dimensions, and how to specify finishes. An answer to this is in the use of magnetostatic analytics, corresponding to boundary conditions for the optical design. With such models, the magnetostatic force on a test pole along the axis may be examined, and in this way one may obtain priority listings for holding dimensions, relieving stresses, etc..The development of magnetostatic models most easily proceeds from the derivation of scalar potentials of separate geometric elements. These potentials can then be conbined at will because of the superposition characteristic of conservative force fields.


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