4. Appendix

Display Brightness Adjustable Range

The display brightness adjustment range that can be selected differs depending on the model.

Model	Range of brightness
BT-35E/30E	0 ~ 20
BT-30C	0 ~ 20
BT-40	0 ~ 20
BT-45C	0 ~ 20

The range of adjustable virtual display distance step and the horizontal pixel shift amount

Refer to the table below for the virtual display distance range and horizontal shift amount that can be adjusted.
The display distance is a reference value, not a guaranteed value.
* BT-35E/30E and BT-30C are not supported.

Step	BT-40	Display distance [m]	BT-45C	Display distance [m]
	Pixel shift amount	reference value	Pixel shift amount	reference value
0	256	0.76	256	0.76
1	248	0.79	248	0.79
2	240	0.81	240	0.81
3	232	0.83	232	0.83
4	224	0.85	224	0.85
5	216	0.88	216	0.88
6	208	0.91	208	0.91
7	200	0.94	200	0.94
8	192	0.97	192	0.97
9	184	1	184	1
10	176	1.03	176	1.03
11	168	1.07	168	1.07
12	160	1.11	160	1.11
13	152	1.16	152	1.16
14	144	1.2	144	1.2
15	136	1.26	136	1.26
16	128	1.31	128	1.31
17	120	1.37	120	1.37
18	112	1.44	112	1.44
19	104	1.51	104	1.51
20	96	1.6	96	1.6
21	88	1.69	88	1.69
22	80	1.79	80	1.79
23	72	1.91	72	1.91
24	64	2.04	64	2.04
25	56	2.19	56	2.19
26	48	2.37	48	2.37
27	40	2.58	40	2.58
28	32	2.83	32	2.83
29	24	3.13	24	3.13
30	16	3.5	16	3.5
31	8	3.98	8	3.98
32	0(default)	4.6	0(default)	4.6
33	-8	5.45	-8	5.45
34	-16	6.7	-16	6.7
35	-24	8.68	-24	8.68
36	-32	12.32	-32	12.32

Earphone volume range

Adjustable earphone volume range

	range
BT-35E/30E	0 ~ 15
BT-30C	0 ~ 20
BT-40	Not support
BT-45C	Not support

Audio gain range

Adjustable audio gain range

	range
BT-35E/30E	Not support
BT-30C	Not support
BT-40	Not support
BT-45C	0 ~ +4 (default=0)