Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Theoretical analysis of error transfer from surface slope to refractive
  ray and their application to the solar concentrated collector   This paper presents the general equation to calculate the standard deviation
of reflected ray error from optical error through geometry optics, applying the
equation to calculate the standard deviation of reflected ray error for 8 kinds
of solar concentrated reflector, provide typical results. The results indicate
that the slope errors in two direction is transferred to any one direction of
the focus ray when the incidence angle is more than 0 for solar trough and
heliostats reflector; for point focus Fresnel lens, point focus parabolic glass
mirror, line focus parabolic galss mirror, the error transferring coefficient
from optical to focus ray will increase when the rim angle increase; for TIR-R
concentrator, it will decrease; for glass heliostat, it relates to the
incidence angle and azimuth of the reflecting point. Keywords: optic error,
standard deviation, refractive ray error, concentrated solar collector

1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
23
The categories of this paper are: solv-int
2
The categories of this paper are: math
4
The categories of this paper are: cond-mat
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom