# 人眼視覺能力

## 水平視場能力(Horizontal Field of View, FOV) 

![](/files/-Ldamt3YpKW6C1MFWb_n)

| 範圍                       | 區域                   | 備註                                           |
| ------------------------ | -------------------- | -------------------------------------------- |
| <p></p><p>±60°（120°)</p> | <p></p><p>雙眼水平視場</p> | <p></p><p>頭、眼固定不轉動、0°為標準視線直線</p>             |
| <p></p><p>0°\~±30°</p>   | <p></p><p>中央視野區域</p> | <p></p><p>人眼辨識物件(symbol recognition)最清晰處</p> |
| ±30°\~±60°               | 周邊視野區域               |                                              |
| ±60°\~±90°               | 脖子舒適轉動可視區            | 脖子舒適轉動幅度為30°                                 |
| ±90°\~±115°              | 脖子最大轉動可視區            | 脖子最大轉動幅度為55°                                 |
| ±115°\~                  | 視覺盲區                 | 需要轉身才可見                                      |

## 垂直視場能力( Vertical FOV)

![](/files/-LdatH-86491EVl2lbf-)

**雙眼視場**

| 範圍                            | 區域                   | 備註                     |
| ----------------------------- | -------------------- | ---------------------- |
| <p></p><p>50°\~-70°（120°)</p> | <p></p><p>雙眼垂直視場</p> | <p></p><p>頭、眼固定不轉動</p> |

**站立情境**

| 範圍        | 區域                         |
| --------- | -------------------------- |
| -10°      | 正常視線(normal line of sight) |
| 25°\~-30° | 正常視野範圍                     |

**坐下情境**

| 範圍         | 區域                         |
| ---------- | -------------------------- |
| -15°       | 正常視線(normal line of sight) |
| -15°\~-50° | 正常視野範圍                     |

## 深度視場能力(Depth FOV)

![](/files/-LdapKYB2ibvfB6SNYVm)

| 範圍                     | 區域                          | 備註                               |
| ---------------------- | --------------------------- | -------------------------------- |
| <p></p><p>63mm</p>     | <p></p><p>成人平均瞳距</p>        |                                  |
| <p></p><p>40cm\~6m</p> | <p></p><p>常時間注視最舒適且清晰範圍</p> | <p></p><p>介於此範圍外容易造成眼睛壓力產生疲勞</p> |

註：人眼生活中掌管深度成像大多仰賴雙眼的輻輳調節作用來聚焦於注視的物體中，因此，眼球轉動的幅度與水晶體的調節是為人類視覺舒適度的重要影響因素之一。

##

參考資料：

1. Ankrum, D. R. (1999). Monitor Placement and Lighting Visual Ergonomics in the Office Summary : Guidelines for monitor placement and lighting EYE-TO-SCREEN DISTANCE.
2. Chu, A. (2014). VR Design: Transitioning from a 2D to 3D Design Paradigm\[Presitation]. Retrieved from <https://blog.marvelapp.com/designing-vr-beginners-guide/>
3. Oculus. (2016). Oculus Best Practices. Oculus Documentation, Introduction to Best Practices. Retrieved from <http://static.oculus.com/documentation/pdfs/intro-vr/latest/bp.pdf>
4. Validating, V. (2005). Visual Ergonomics.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://vrui-research.gitbook.io/researchonvrui/ergonomic-issues/jie-mian-zui-yu/ren-yan-kan-neng-li.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.