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| Number | Title | Issue Date |
| 7072030 | Optical sheet and optimizing method thereof An optical sheet optimization method includes the steps of: extracting a statistic sample using transmissivity, haze data and luminance data of an optical diffusion sheet corresponding to the transmissivity and the haze data; making a regression model for the extrac... | 07/04/2006 |
| 6765660 | System and method for measuring the quality of an illumination field from a laser line illumination system A system is disclosed for analyzing an illumination field of a line of laser illumination. The system includes a first movable unit, a second movable unit, and a sensor unit. The first movable unit includes a first opening through which at least a portion of the ill... | 07/20/2004 |
| 6646728 | Calibrating a focused beam of energy in a solid freeform fabrication apparatus by measuring the propagation characteristics of the beam The invention relates in general to calibrating a focused beam of energy in a solid freeform fabrication apparatus, and, in particular, to a method of measuring the propagation characteristics of the beam to produce beam propagation data. The beam propaga... | 11/11/2003 |
| 6618131 | System and method for measuring the quality of an illumination field from a laser line illumination system A system is disclosed for analyzing an illumination field of a line of laser illumination. The system includes a first movable unit, a second movable unit, and a sensor unit. The first movable unit includes a first opening through which at least a portion... | 09/09/2003 |
| 5877853 | Method of evaluating an optical transmission path A method of measuring the radius of curvature of the convex tip of a core protruding from the end of an optical transmission path is disclosed. The transmission path is implemented by an optical fiber. A measuring unit accommodating a condenser and an inf... | 03/02/1999 |
| 5647031 | Device for checking the position and/or the focusing of a focused light beam A device is provided for checking the positioning and/or the focusing of a focused light beam. This integrated optical device for checking the positioning and/or the focusing of a focused light beam having an integrated optics guidance structure includes ... | 07/08/1997 |
| 5619322 | Method of adjusting optical axis of headlight of vehicle That illuminating pattern of the headlight which appears on a screen disposed in front of the vehicle is pictured. The optical axis of the headlight is adjusted based on an image of the illuminating pattern. A distribution of illuminance of the illuminati... | 04/08/1997 |
| 5056916 | Optical axis adjusting system for lighting unit of vehicle An optical axis adjusting system comprises at least one lighting unit such as a vehicle's head lamp unit, and at least one optical instrument. The lighting unit comprises a housing having a reflector, and a lens having first and second portions which are ... | 10/15/1991 |
| 4871947 | Apparatus for automatically correcting arc position of high pressure discharge lamp Disclosed is an apparatus for stabilizing the light output of a high pressure discharge lamp comprising a coil generating a magnetic field acting upon the arc of the high pressure discharge lamp, an arc position detector detecting deviation of the positio... | 10/03/1989 |
| 4455085 | Method and apparatus for detecting a focussing condition of an objective lens A method and apparatus for detecting a focussing error signal of an objective lens with respect to a video disc on which a light beam emitted from a laser light source is to be focussed as a light spot by the objective lens. A light flux reflected by the ... | 06/19/1984 |
| 4009966 | Headlamp focusing method A headlamp with a parabolic reflector has a filament mounted on lead wires attached to a support disc which is slidably and angularly adjustable within a cylindrical ferrule attached to the reflector so as to permit positioning the filament at the reflect... | 03/01/1977 |
| 3969575 | Opto-electronic focus detection system In an opto-electronic focus detection system for determining a deviation between the plane of focussing of an objective and a radiation-reflecting surface the path of a focussing beam which is reflected by said surface includes an assembly of two radiatio... | 07/13/1976 |
