  We present high-resolution ($0\farcs2$) near-infrared images of the area
surrounding the Herbig Be star LkH$\alpha$ 234 taken with the Coronagraphic
Imager with Adaptive Optics (CIAO) and the adaptive optics on the Subaru
Telescope. The near-infrared ($J$, $H$, $K$, $L'$ and $M'$ bands) images reveal
circumstellar structures around LkH$\alpha$ 234 in detail. Eight young stellar
object (YSO) candidates (Object B, C, D, E, F, G, NW1, and NW2) were detected
at 2$\arcsec$--11$\arcsec$ from LkH$\alpha$ 234. Objects B and C are likely
variable stars, which is consistent with a young evolutionary status. Three
objects (LkH$\alpha$ 234, NW1, and NW2) were identified in the 11.8 $\micron$
(SiC) and 17.65 $\micron$ images obtained with the Long Wavelength Spectrometer
(LWS) on the Keck Telescope. NW1 and NW2 are thought to be embedded young
stars. We suggest that NW1 and not LkH$\alpha$ 234 is the source illuminating
the reflection nebula west of LkH$\alpha$ 234, although Object G may be another
candidate. In our images, these objects are located at the center of the 2
$\micron$ polarization, and NW1 resides at the center of a monopolar cavity.
The SED of NW1 suggests that it is a YSO with a spectral type of B6--7. Object
F and G were discovered by our observations at $1\farcs9$ and $2\farcs3$,
respectively, from LkH$\alpha$ 234, and their proximity to LkH$\alpha$ 234
suggests that they may be its lower-mass companions.

Solar and Stellar Astrophysics