Liquid lens and its applications in optical design

Kari Oikarinen

Research output: ThesisMaster's thesisTheses

Abstract

The thesis presents a design of a variable focus camera with liquid lens. There are no mechanical moving parts and the only active component is a Varioptic Arctic 320 liquid lens. The liquid lens is based on a phenomenon called electrowetting that can be used to change the contact angle of a conductive liquid with a surface. Inside the liquid lens there are two immiscible liquids that have different indices of refraction: a water solution and an oil. By applying a suitable voltage the interface between the liquids changes shape. Theory behind optical design, physics of electrowetting and modeling this novel component during optical design are discussed. The designed lens system is 24 millimeters long measured from the vertex of the first lens to the surface of the image sensor. It contains no aspherical surfaces. The full field of view of the camera is 40 degrees, its f-number is 2.5 and the effective focal length is approximately 6 millimeters. Nominal performance of the design is presented exhaustively and modulation transfer function measurements from a manufactured prototype are shown. The minimum object distance of the prototype is about two centimeters.
Original languageEnglish
QualificationMaster Degree
Awarding Institution
  • University of Oulu
Place of PublicationOulu
Publisher
Publication statusPublished - 2010
MoE publication typeG2 Master's thesis, polytechnic Master's thesis

Fingerprint

lenses
liquids
cameras
prototypes
theses
modulation transfer function
field of view
refraction
apexes
oils
physics
sensors
electric potential
water

Cite this

Oikarinen, K. (2010). Liquid lens and its applications in optical design. Oulu: University of Oulu.
Oikarinen, Kari. / Liquid lens and its applications in optical design. Oulu : University of Oulu, 2010. 99 p.
@phdthesis{0bc9345a9e1e41d79b571265b48e6617,
title = "Liquid lens and its applications in optical design",
abstract = "The thesis presents a design of a variable focus camera with liquid lens. There are no mechanical moving parts and the only active component is a Varioptic Arctic 320 liquid lens. The liquid lens is based on a phenomenon called electrowetting that can be used to change the contact angle of a conductive liquid with a surface. Inside the liquid lens there are two immiscible liquids that have different indices of refraction: a water solution and an oil. By applying a suitable voltage the interface between the liquids changes shape. Theory behind optical design, physics of electrowetting and modeling this novel component during optical design are discussed. The designed lens system is 24 millimeters long measured from the vertex of the first lens to the surface of the image sensor. It contains no aspherical surfaces. The full field of view of the camera is 40 degrees, its f-number is 2.5 and the effective focal length is approximately 6 millimeters. Nominal performance of the design is presented exhaustively and modulation transfer function measurements from a manufactured prototype are shown. The minimum object distance of the prototype is about two centimeters.",
author = "Kari Oikarinen",
note = "TK612 Project code: 34429-1.8 University of Oulu, Department of Physics",
year = "2010",
language = "English",
publisher = "University of Oulu",
address = "Finland",
school = "University of Oulu",

}

Oikarinen, K 2010, 'Liquid lens and its applications in optical design', Master Degree, University of Oulu, Oulu.

Liquid lens and its applications in optical design. / Oikarinen, Kari.

Oulu : University of Oulu, 2010. 99 p.

Research output: ThesisMaster's thesisTheses

TY - THES

T1 - Liquid lens and its applications in optical design

AU - Oikarinen, Kari

N1 - TK612 Project code: 34429-1.8 University of Oulu, Department of Physics

PY - 2010

Y1 - 2010

N2 - The thesis presents a design of a variable focus camera with liquid lens. There are no mechanical moving parts and the only active component is a Varioptic Arctic 320 liquid lens. The liquid lens is based on a phenomenon called electrowetting that can be used to change the contact angle of a conductive liquid with a surface. Inside the liquid lens there are two immiscible liquids that have different indices of refraction: a water solution and an oil. By applying a suitable voltage the interface between the liquids changes shape. Theory behind optical design, physics of electrowetting and modeling this novel component during optical design are discussed. The designed lens system is 24 millimeters long measured from the vertex of the first lens to the surface of the image sensor. It contains no aspherical surfaces. The full field of view of the camera is 40 degrees, its f-number is 2.5 and the effective focal length is approximately 6 millimeters. Nominal performance of the design is presented exhaustively and modulation transfer function measurements from a manufactured prototype are shown. The minimum object distance of the prototype is about two centimeters.

AB - The thesis presents a design of a variable focus camera with liquid lens. There are no mechanical moving parts and the only active component is a Varioptic Arctic 320 liquid lens. The liquid lens is based on a phenomenon called electrowetting that can be used to change the contact angle of a conductive liquid with a surface. Inside the liquid lens there are two immiscible liquids that have different indices of refraction: a water solution and an oil. By applying a suitable voltage the interface between the liquids changes shape. Theory behind optical design, physics of electrowetting and modeling this novel component during optical design are discussed. The designed lens system is 24 millimeters long measured from the vertex of the first lens to the surface of the image sensor. It contains no aspherical surfaces. The full field of view of the camera is 40 degrees, its f-number is 2.5 and the effective focal length is approximately 6 millimeters. Nominal performance of the design is presented exhaustively and modulation transfer function measurements from a manufactured prototype are shown. The minimum object distance of the prototype is about two centimeters.

M3 - Master's thesis

PB - University of Oulu

CY - Oulu

ER -

Oikarinen K. Liquid lens and its applications in optical design. Oulu: University of Oulu, 2010. 99 p.