The reflective type optically addressed spatial light modulators (OASLMs) with an amorphous hydrogenated carbon (a-C:H) light-blocking layer sandwiched between an intrinsic hydrogenated silicon carbide (A-Si:C:H) photoconductor and broad-band and narrow-band dielectric mirrors have been developed. FLC was used as a light modulating medium. The DHF effect in an FLC with tilt angle (Theta) equals 39 degree(s) and SS (Clark-Lagerwall) effect with angle 22.5 degree(s) were employed. The study showed that a flexible design of the OASLMs are possible. As a result of optimal design of the reflective type OASLMs with the dielectric mirrors of two types, the following performance characteristics have been obtained. Diffraction efficiency was about 30%, net diffraction efficiency (NE) was about 20% (spatial frequency equal 30 lp/mm and frame refreshment rate equal 200 Hz). Sensitivity was in the interval from 50 to 100 (mu) W/cm2, depending on the mirror type. NE equals 12.5% for spatial frequency 100 lp/mm. The results of our work show promise for the development of novel FLC OASLMs with a significant decrease in the loss of light, operating in reflective mode. This net diffraction efficiency practically does not depend on the direction of the reading-out light polarization for the OASLMs operating on the DHF mode.