diff --git a/orbbec_camera/launch/dabai_a.launch.py b/orbbec_camera/launch/dabai_a.launch.py
index c105ddd5..d23afd90 100644
--- a/orbbec_camera/launch/dabai_a.launch.py
+++ b/orbbec_camera/launch/dabai_a.launch.py
@@ -148,7 +148,6 @@ def generate_launch_description():
         DeclareLaunchArgument('ir_exposure', default_value='-1'),
         DeclareLaunchArgument('ir_gain', default_value='-1'),
         DeclareLaunchArgument('ir_ae_max_exposure', default_value='-1'),
-        DeclareLaunchArgument('ir_brightness', default_value='-1'),
         DeclareLaunchArgument('enable_sync_output_accel_gyro', default_value='false'),
         DeclareLaunchArgument('enable_accel', default_value='false'),
         DeclareLaunchArgument('enable_accel_data_correction', default_value='true'),
diff --git a/orbbec_camera/launch/dabai_al.launch.py b/orbbec_camera/launch/dabai_al.launch.py
index 6dc42693..4bf3341e 100644
--- a/orbbec_camera/launch/dabai_al.launch.py
+++ b/orbbec_camera/launch/dabai_al.launch.py
@@ -148,7 +148,6 @@ def generate_launch_description():
         DeclareLaunchArgument('ir_exposure', default_value='-1'),
         DeclareLaunchArgument('ir_gain', default_value='-1'),
         DeclareLaunchArgument('ir_ae_max_exposure', default_value='-1'),
-        DeclareLaunchArgument('ir_brightness', default_value='-1'),
         DeclareLaunchArgument('enable_sync_output_accel_gyro', default_value='false'),
         DeclareLaunchArgument('enable_accel', default_value='false'),
         DeclareLaunchArgument('enable_accel_data_correction', default_value='true'),
diff --git a/orbbec_camera/launch/gemini345.launch.py b/orbbec_camera/launch/gemini345.launch.py
index 197fd52b..26942a0a 100644
--- a/orbbec_camera/launch/gemini345.launch.py
+++ b/orbbec_camera/launch/gemini345.launch.py
@@ -147,7 +147,6 @@ def generate_launch_description():
         DeclareLaunchArgument('ir_exposure', default_value='-1'),
         DeclareLaunchArgument('ir_gain', default_value='-1'),
         DeclareLaunchArgument('ir_ae_max_exposure', default_value='-1'),
-        DeclareLaunchArgument('ir_brightness', default_value='-1'),
         DeclareLaunchArgument('enable_sync_output_accel_gyro', default_value='false'),
         DeclareLaunchArgument('enable_accel', default_value='false'),
         DeclareLaunchArgument('enable_accel_data_correction', default_value='true'),
diff --git a/orbbec_camera/launch/gemini345_lg.launch.py b/orbbec_camera/launch/gemini345_lg.launch.py
index cf22d547..64739f43 100644
--- a/orbbec_camera/launch/gemini345_lg.launch.py
+++ b/orbbec_camera/launch/gemini345_lg.launch.py
@@ -148,7 +148,6 @@ def generate_launch_description():
         DeclareLaunchArgument('ir_exposure', default_value='-1'),
         DeclareLaunchArgument('ir_gain', default_value='-1'),
         DeclareLaunchArgument('ir_ae_max_exposure', default_value='-1'),
-        DeclareLaunchArgument('ir_brightness', default_value='-1'),
         DeclareLaunchArgument('enable_sync_output_accel_gyro', default_value='false'),
         DeclareLaunchArgument('enable_accel', default_value='false'),
         DeclareLaunchArgument('enable_accel_data_correction', default_value='true'),
diff --git a/orbbec_camera/launch/gemini435_le.launch.py b/orbbec_camera/launch/gemini435_le.launch.py
index 42b757c5..af71f294 100644
--- a/orbbec_camera/launch/gemini435_le.launch.py
+++ b/orbbec_camera/launch/gemini435_le.launch.py
@@ -171,7 +171,6 @@ def generate_launch_description():
         DeclareLaunchArgument('ir_exposure', default_value='-1'),
         DeclareLaunchArgument('ir_gain', default_value='-1'),
         DeclareLaunchArgument('ir_ae_max_exposure', default_value='-1'),
-        DeclareLaunchArgument('ir_brightness', default_value='-1'),
         DeclareLaunchArgument('enable_sync_output_accel_gyro', default_value='false'),
         DeclareLaunchArgument('enable_accel', default_value='false'),
         DeclareLaunchArgument('enable_accel_data_correction', default_value='true'),
diff --git a/orbbec_camera/launch/gemini_330_series.launch.py b/orbbec_camera/launch/gemini_330_series.launch.py
index 5b80cd0e..f98091af 100644
--- a/orbbec_camera/launch/gemini_330_series.launch.py
+++ b/orbbec_camera/launch/gemini_330_series.launch.py
@@ -192,7 +192,6 @@ def generate_launch_description():
         DeclareLaunchArgument('ir_exposure', default_value='-1'),
         DeclareLaunchArgument('ir_gain', default_value='-1'),
         DeclareLaunchArgument('ir_ae_max_exposure', default_value='-1'),
-        DeclareLaunchArgument('ir_brightness', default_value='-1'),
         DeclareLaunchArgument('enable_sync_output_accel_gyro', default_value='false'),
         DeclareLaunchArgument('enable_accel', default_value='false'),
         DeclareLaunchArgument('enable_accel_data_correction', default_value='true'),
diff --git a/orbbec_camera/launch/gemini_330_series_low_cpu.launch.py b/orbbec_camera/launch/gemini_330_series_low_cpu.launch.py
index 4624d300..09dcb83c 100644
--- a/orbbec_camera/launch/gemini_330_series_low_cpu.launch.py
+++ b/orbbec_camera/launch/gemini_330_series_low_cpu.launch.py
@@ -190,7 +190,6 @@ def generate_launch_description():
         DeclareLaunchArgument('ir_exposure', default_value='-1'),
         DeclareLaunchArgument('ir_gain', default_value='-1'),
         DeclareLaunchArgument('ir_ae_max_exposure', default_value='-1'),
-        DeclareLaunchArgument('ir_brightness', default_value='-1'),
         DeclareLaunchArgument('enable_sync_output_accel_gyro', default_value='false'),
         DeclareLaunchArgument('enable_accel', default_value='false'),
         DeclareLaunchArgument('enable_accel_data_correction', default_value='true'),