Optimizing null field for EAST is important to plasma discharge.

Two-step stereogram has a narrow field of vision,also it is complex to make.

To improve the imaging quality of CCD camera and make the lens small in size,compact in structure,the wide field of view(WFOV) optical lens with the aspheric surface was designed.

The measured temperature of a target in full field of view is the real temperature.

To ameliorate the field of view of Cassegrain optical system,a diffractive optical element(DOE) is first successfully introduced to the Cassegrain optical system and the design scheme is provided in this paper.

Research of the methods for enlarging the field-of-view in digital holography;

The field-of-view of a scanning laser radar which adopts a pre-objective beam steering optical antenna is discussed - It shows that the scanning field-of-view is usually smaller than the defined field-of-view of the antenna telescope.

To enlarge the field-of-view of digital holographic surface measurement,so that digital holography can be applied in three-dimensional(3-D) surface measurement of large objects,based on Fresnel off axis digital holography,different part of the object is illuminated singly and their holograms are recorded respectively.

Design of wide-FOV optical system with optical gain;

According to the requirement of scene optical display system for large-scale transport aircraft flight simulator that the aberrance of image should be small and FOV be large, a few projects of scene optical display systems for flight simulator were discussed.