Wearable phototherapy headgear for targeted light therapy

Abstract

A wearable phototherapy headgear device comprises a headband and a visor connected to the headband, which is designed to rotate relative to the headband. The visor incorporates a light source configured to direct light towards the wearer during use. The device controls the operation of the light source to provide targeted phototherapy to specific regions according to the rotary position of the visor. This configuration enhances the precision of light delivery, customises treatment for different regions of the head and neck, and improves therapeutic outcomes and user comfort by adjusting light parameters based on the visor's position.

Description

Wearable Phototherapy Headgear for Targeted Light TherapyField of the Invention

[0001] The present invention relates to the field of phototherapy devices, specifically wearable phototherapy headgear designed to deliver targeted light therapy to specific regions of the head and neck. The invention is particularly applicable to therapeutic treatments involving light emission for the promotion of hair growth, scalp care, and various dermatological treatments aimed at improving skin health and appearance.Background of the Invention

[0002] Phototherapy devices have been utilised for various therapeutic treatments, including hair growth stimulation, scalp care, and skin treatment. Such devices typically use light sources emitting specific wavelengths of light to achieve desired therapeutic effects. The use of light therapy in dermatology has been well- documented, with applications ranging from the treatment of acne to the promotion of hair growth and the reduction of fine lines and wrinkles.

[0003] One notable example of prior art in this field is US20100076529A1 (Tucker et aL), 30 June 2011 which describes a phototherapy apparatus designed for the treatment of hair, scalp, and skin. This device includes a helmet-like structure fitted with an array of light-emitting diodes (LEDs) arranged to direct light towards the scalp and hair.

[0004] However, despite the advancements presented by US20100076529A1 , there remains a need for further innovation in phototherapy devices, particularly in improving precision of light delivery, and providing more comprehensive control over the treatment parameters to cater to individual therapeutic requirements.Summary of the Disclosure

[0005] The described wearable phototherapy headgear for targeted light therapy which is configured to include a headband and a visor connected to the headband, which is designed to rotate relative to the headband. The visor comprises a light source that directs light towards the wearer during use. The headgear controls the operation of the light source to provide targeted phototherapy to specific regions ofthe head and / or neck of the wearer according to the rotary position of the visor. This configuration offers significant technical advantages, such as enhancing the precision of light delivery and customising treatment for different regions of the head and neck. By adjusting the light parameters according to the visor's position, the device ensures optimal therapeutic outcomes and improved user comfort.

[0006] Preferably, the headgear includes a rotary transducer interfacing the visor and the headband, detecting the rotary position of the visor. This feature allows for precise monitoring and control of the visor's orientation, ensuring that the light source is accurately aligned with the target treatment area.

[0007] According to another aspect, the headgear may be configured to control the wavelength emission of the light source based on the rotary position of the visor. This capability enables the device to tailor the wavelength of light for specific therapeutic effects, such as using red light for hair growth stimulation or blue light for acne treatment.

[0008] In another embodiment, the light source may comprise a first light emitter configured to emit light at a first wavelength and a second light emitter configured to emit light at a second wavelength. The headgear may independently operate these emitters to control the wavelength emission, providing versatile treatment options and addressing multiple therapeutic needs simultaneously.

[0009] Additionally, the headgear may control the light intensity output of the light source according to the rotary position of the visor. This feature allows for the adjustment of light intensity based on the sensitivity and requirements of different regions, enhancing treatment efficacy and user comfort.

[0010] The rotary positions of the visor may include specific configurations, such as a cranial position adjacent to the cranial region, a facial position adjacent to the facial region, and a frontal neck position adjacent to the frontal neck region. Each positio n may be associated with a distinct lighting configuration, ensuring that the light source delivers the appropriate type and intensity of light for each targeted area.

[0011] According to another aspect, the headgear may be configured to prevent the light source from directing light at certain regions, such as the frontal neck. This selective control prevents unnecessary exposure and enhances user safety.

[0012] In one embodiment, the light source may comprise individually controllable light emitters, allowing for precise control of light delivery across the visor. This feature provides the ability to customise treatment further and target specific areas with varying light intensities and wavelengths.

[0013] Additionally, the headgear may include a rotary actuator configured to adjust the rotary position of the visor automatically. This feature ensures consistent and accurate positioning of the visor, facilitating optimal light delivery and reducing the need for manual adjustments by the user.

[0014] The headgear may also be configured to output visor positional instructions to the wearer, providing guidance for optimal use. These instructions may be delivered audibly through headphones, enhancing ease of use and ensuring that the wearer positions the visor correctly for effective treatment.

[0015] Finally, the rotary positions may include configurations for emitting specific wavelengths of light, such as red light in the range of approximately 630-670 nanometres for cranial treatments or various wavelengths for facial and frontal neck treatments. This capability allows for tailored therapeutic interventions, addressing a range of conditions and enhancing overall treatment outcomes.

[0016] Other aspects of the invention are also disclosed.Brief Description of the Drawings

[0017] Notwithstanding any other forms which may fall within the scope of the present invention, preferred embodiments of the disclosure will now be described, by way of example only, with reference to the accompanying drawings in which:

[0018] Figure 1 : Schematically illustrates a wearable phototherapy headgear having a light source 106 with multiple light emitters 107.

[0019] Figure 2: Presents the exemplary operation 122 of the headgear 100, where the light source 106 is controlled based on the rotary position of the transducer.

[0020] Figure 3: Presents another exemplary operation 130, where the visor 102 partially covers both the cranial region 1 19 and facial region 120 or partially covers the facial region 120 and frontal neck region 121.

[0021] Figure 4: Shows the wearable phototherapy headgear 100, including a headband 101 and a visor 102 connected to the headband.

[0022] Figure 5: Depicts the group 129 of nonoperational light emitters 107, preventing light from being directed towards the thyroid region.

[0023] Figure 6: Displays the visor 102 in the facial position adjacent to the facial region 120.

[0024] Figure 7: Shows the visor 102 in the cranial position adjacent to the cranial region 1 19.Description of Embodiments

[0025] Figure 4 shows a wearable phototherapy headgear 100, comprising a headband 101 and a visor 102 connected to the headband 101. The visor 102 is configured to rotate with respect to the headband 101 . The headband 101 may include a pair of bands 132 and is designed to be worn behind the neck, as illustrated in Figures 6 and 7.

[0026] The headgear 100 may also include headphones 103, which can play music from a connected device 104. At least one headphone 103 may contain concealed controller components within a cap 105.

[0027] The visor 102 incorporates a light source 106 that directs light towards the wearer when the headgear 100 is in use. Figure 1 shows that the light source 106 may consist of multiple light emitters 107, typically LEDs. The inner surface 108 of the visor 102, shown in Figure 5, contains a plurality of LEDs 109.

[0028] The headgear 100 is designed to control the light source 106 based on the rotary position of the visor 102 relative to the headband 101 .

[0029] As shown in Figure 1 , the headgear 100 may include a controller 1 10 with a processor 1 1 1 for processing digital data. A memory 1 12, connected to the processor 1 1 1 via a system bus 1 13, stores digital data, including computer program code instructions. The processor 1 1 1 fetches these instructions and associated data toimplement the functionality described. The data may include configuration data 1 14, which includes settings for controlling the light source 106.

[0030] The computer program code instructions are logically divided into several controllers 1 15. For example, there may be a rotary position controller that detects the visor's rotary position, and another controller for controlling the light source 106.

[0031] The controller 1 10 may feature an I / O interface 1 16 to control the light source 106. This interface can manage the wavelength emission, operation, and / or intensity of the light source 106. Additionally, the I / O interface 1 16 may connect to a rotary transducer 1 17, which detects the rotary position of the visor 102 by interfacing with the headband 101 and the visor 102.

[0032] The rotary transducer 1 17 detects the rotary position of the visor 102 by interfacing with both the headband 101 and the visor 102. The rotary transducer 1 17 can employ several technical methods to achieve precise detection. One example involves the use of a potentiometer integrated within the rotary transducer 1 17. As the visor 102 rotates with respect to the headband 101 , the potentiometer measures the angular displacement, converting this mechanical movement into an electrical signal. This signal is then processed by the controller 1 10 to determine the exact rotary position of the visor 102, enabling precise control of the light source 106 based on the visor's orientation.

[0033] Another example is the use of an optical encoder within the rotary transducer 1 17. The optical encoder consists of a rotating disk attached to the visor 102 and a stationary sensor mounted on the headband 101 . The disk features patterns of opaque and transparent segments, and as it rotates, the sensor detects changes in light passing through the disk. These changes generate a digital signal corresponding to the visor's rotary position. The controller 1 10 interprets this signal to adjust the light source 106 accordingly.

[0034] A magnetic rotary sensor can also be used in the rotary transducer 1 17. This sensor comprises a magnet attached to the visor 102 and a magnetic field sensor positioned on the headband 101 . As the visor 102 rotates, the magnetic field sensor detects variations in the magnetic field strength and direction. These variations aretranslated into positional data, which the controller 1 10 uses to control the light source 106 based on the visor's rotary position.

[0035] In some embodiments, a capacitive rotary sensor may be employed. The capacitive sensor includes conductive elements on both the visor 102 and the headband 101. As the visor 102 rotates, the capacitance between these elements changes. The rotary transducer 1 17 measures these capacitance changes and converts them into electrical signals representing the rotary position of the visor 102. The controller 1 10 processes these signals to manage the light source 106 effectively.

[0036] Figure 7 illustrates the visor 102 in a cranial position adjacent to a cranial region 1 19. The rotary transducer 1 17 detects this position using one of the aforementioned methods and informs the controller 1 10, which then activates the appropriate cranial lighting configuration. Similarly, Figure 6 shows the visor 102 in a facial position adjacent to a facial region 120, with the rotary transducer 1 17 detecting this new position and enabling the controller 1 10 to adjust the light source 106 to the facial lighting configuration.

[0037] The controller 1 10 may also include a data interface 1 18 for sending and receiving data. In this case, the data interface 1 18 is a short-range wireless Bluetooth interface configured to communicate with a device 104, such as a mobile phone. Besides receiving audio data for music playback through the headphones 103, the data interface 1 18 can receive configuration settings, including settings for controlling the light source 106, from the device 104.

[0038] The headgear 100 can control the wavelength emission of the light source based on the rotary position of the visor 102. The light source 106 may have first light emitters 107 emitting light at a first wavelength and second light emitters 107 emitting light at a second wavelength. Thus, the headgear 100 can independently operate the first and second light emitters to control the wavelength emission.

[0039] Furthermore, depending on the rotary position of the visor 102, the headgear 100 may control the operation and / or light intensity output of the light source 106.

[0040] Figure 7 shows the visor 102 in a cranial position adjacent to a cranial region1 19. In this configuration, the headgear 100 controls the light source according to a cranial region lighting configuration.

[0041] Figure 6 shows the visor 102 in a facial position adjacent to a facial region120. In this case, the headgear 100 controls the light source 106 according to a facial region lighting configuration.

[0042] The rotary positions can also include a frontal neck position, where the visor 102 is adjacent to a frontal neck region 121 , and the headgear 100 controls the light source 106 according to a frontal neck region lighting configuration.

[0043] With reference to Figure 7, it should be noted how the visor 102 extends further than the headband 101 / bands 132 so that the visor 102 can rotate beyond the headband 101 , especially to target the rear of the cranial region 1 19.

[0044] In embodiments, an adjustable coupling may interface the visor 102 and the headband 101 or the headphones 103 to adjust the visor 102 outwardly or inwardly to best fit the facial profile and contours of the user.

[0045] In accordance with an embodiment evident in Figure 7, the headphones 103 may travel along the bands 132 of the headband 101 to allow for axial adjustment of the headphones 103 (and therefore the visor 102) along the bands 132. As shown in Figure 7, the distal ends of the bands 132 may extend beyond the headphones 103, thereby allowing the headphones 103 to travel along the distal and proximal portions of the bands 132. The bands 132 may have teeth along their length engaged by an interference member / tooth of the headband 101 to hold the headphones 103 at various positions along the bands 132.

[0046] Figure 2 depicts an exemplary operation 122 of the headgear 100. At step 123, the rotary transducer 1 17 detects that the visor 102 is in the cranial position shown in Figure 7. Consequently, at step 124, the controller 1 10 controls the light source 106 based on the cranial lighting configuration. In this configuration, the light source 106 may emit a wavelength suitable for treating hair loss. For example, the light source 106 may emit light in the red-light spectrum, typically around 630-670nanometres (nm), which stimulates hair follicles, promotes hair growth, and improves the overall health of the scalp.

[0047] At step 125, the controller 1 10 uses the rotary transducer 1 17 to detect that the visor 102 is in the facial position shown in Figure 6. At step 126, the controller 1 10 controls the light source 106 according to the facial lighting configuration. Depending on the configuration, the light source 106 may emit light at a wavelength for facial rejuvenation or the treatment of acne.

[0048] For example, the light source 106 may be configured to emit red light in the range of 620-700 nm to stimulate collagen production, improve skin elasticity, reduce the appearance of fine lines and wrinkles, and promote overall skin rejuvenation.

[0049] Furthermore, the light source 106 may emit near-infrared light at wavelengths around 700-900 nm, which is beneficial for skin rejuvenation as it penetrates deeper into the skin. It helps enhance cellular metabolism, improve blood circulation, and promote tissue repair and regeneration.

[0050] Additionally, the light source 106 may emit blue light at wavelengths around 400-450 nm, which is effective in targeting acne-causing bacteria and reducing inflammation. It is commonly used to treat acne and improve the appearance of acne- prone skin.

[0051] Moreover, the light source 106 may emit yellow light in the range of 570-590 nm to help improve skin texture, reduce redness, and promote overall skin rejuvenation. Yellow light may also be used to address skin issues such as rosacea and sun damage.

[0052] At step 127, the controller 1 10 uses the rotary transducer 1 17 to detect that the visor 102 is in the neck position, adjacent to the frontal neck region 121 . At step 128, the controller 1 10 controls the light source 106 according to a neck lighting configuration. In this configuration, the light source 106 may emit light suitable for neck skin tightening and / or rejuvenation. In this position, the light source 106 may emit any one of the aforementioned red, near-infrared, blue, and yellow lights.

[0053] At the various rotary positions, the controller 1 10 can also control the light intensity of the light source 106. For example, when the visor 102 is in the cranialregion 1 19, the light source 106 can operate at a higher light intensity compared to when the visor 102 is in the facial region 120.

[0054] To avoid directing light to certain regions of the head, such as the eyes and thyroid region of the wearer, the controller 1 10 may be configured to control the light emitters 107 individually. Figure 5 shows a group 129 of non-operational light emitters 107, preventing light from being directed towards the thyroid region.

[0055] In terms of arrangement, the light emitters 107 of the light source 106 can be individually controllable, allowing the controller 1 10 to adjust their operation based on the rotary position of the visor.

[0056] In some embodiments, the controller 1 10 can simultaneously control the wavelength emissions of first and second groups of light emitters. Figure 3 presents another exemplary operation 130 of the headgear 100. At step 131 , the controller 1 10 detects a partial rotary position where the visor 102 partially covers both the cranial region 1 19 and facial region 120 or partially covers the facial region 120 and frontal neck region 121.

[0057] In this position, the controller 1 10 can individually control the light emitters 107 based on the arc angle. For example, the upper portion of the light source 106, adjacent to the cranial region 1 19, can emit light at a first wavelength, while the lower portion, adjacent to the facial region 120, emits light at a second wavelength.

[0058] Figure 5 illustrates rows of light emitters 107 across the visor 102, and these rows can be individually controlled. By considering the arc angle (i.e., the rotary position of the visor with respect to the headband 101 ), the light emissions of the light source 106 can be controlled.

[0059] In alternative embodiments, the controller 1 10 may only operate the light source 106 when the visor 102 is fully positioned in each respective region (cranial region 1 19, facial region 120, or frontal neck region 121 ). In other words, if the visor 102 is positioned between the facial region 120 and cranial region 1 19, the controller 1 10 would not operate the light source 106. However, when the visor 102 is fully in the cranial region 1 19, the controller 1 10 would activate the cranial lighting configuration.

[0060] Additionally, the controller 1 10 can individually control the light emitters across the visor 102 in embodiments. For example, when the visor 102 is in the frontal neck region 121 , the controller 1 10 may avoid operating (or decrease the intensity of) the light emitters 107 in the central thyroid region. Similarly, when the visor 102 is in the facial region 120, the controller 1 10 may avoid operating (or decrease the intensity of) the light emitters 107 in the eye regions to prevent blinding the wearer. The headgear 100 may include a configuration mode that allows adjustment of the regions to be avoided in terms of position and size.

[0061] In certain embodiments, the headgear 100 incorporates a rotary actuator located between the headband 101 and the visor 102. This rotary actuator is designed to automatically control the rotary position of the visor 102. In this case, the controller 1 10 can reposition the visor 102 between the different regions (cranial region 1 19, facial region 120, and frontal neck region 121 ) to apply different treatments. For instance, the headgear 100 can enter a treatment mode where, initially, the controller 1 10 positions the visor 102 at the cranial region 1 19 to apply the cranial lighting configuration. After the duration of the cranial treatment, the controller 1 10 can reposition the visor 102 to the facial region 120 to apply the facial lighting configuration, and so on.

[0062] In alternative embodiments without the rotary actuator, the headgear 100 may provide instructions to the wearer. For example, the controller 1 10 can provide audible instructions through the headphones 103, guiding the wearer to reposition the visor 102 accordingly. After treating the cranial region 1 19, the controller 1 10 may output audio instructions via the headphones 103, instructing the wearer to reposition the visor 102 to the facial region 120.

[0063] An example of use involves a user wearing the headgear 100 to treat various regions of the head and neck with targeted phototherapy. The user first dons the headband 101 , ensuring it fits comfortably behind the neck. The bands 132 can be adjusted for a secure fit, as depicted in Figure 6.

[0064] Next, the user positions the visor 102 to the desired region. For instance, if the user wishes to stimulate hair growth, they rotate the visor 102 to the cranial position,as shown in Figure 7, adjacent to the cranial region 1 19. The controller 1 10, interfacing with the rotary transducer 1 17, detects this position and activates the light source 106 according to the cranial lighting configuration. The light source 106, comprising multiple LEDs 109 on the inner surface 108 of the visor 102, emits red light in the range of 630-670 nanometres (nm), stimulating hair follicles and promoting hair growth.

[0065] After completing the cranial treatment, the user may rotate the visor 102 to the facial position, as illustrated in Figure 6, adjacent to the facial region 120. The rotary transducer 1 17 detects this new position, and the controller 1 10 adjusts the light source 106 to the facial lighting configuration. The light source 106 may now emit blue light in the range of 400-450 nm to target acne-causing bacteria, reduce inflammation, and improve the appearance of acne-prone skin. Alternatively, the user may choose a configuration emitting red light in the range of 620-700 nm to stimulate collagen production, improving skin elasticity and reducing the appearance of fine lines and wrinkles.

[0066] For neck treatments, the user can rotate the visor 102 to the frontal neck position, adjacent to the frontal neck region 121 . The rotary transducer 1 17 detects this position, and the controller 1 10 adjusts the light source 106 to the neck lighting configuration. The light source 106 may emit near-infrared light in the range of 700- 900 nm, which penetrates deeper into the skin, enhancing cellular metabolism, improving blood circulation, and promoting tissue repair and regeneration.

[0067] Throughout the treatment, the user can adjust the light intensity of the light source 106 based on the sensitivity and requirements of the treated region. For example, the light intensity can be higher for the cranial region 1 19 compared to the facial region 120.

[0068] To avoid directing light to sensitive regions such as the eyes and thyroid, the controller 1 10 can individually control the light emitters 107. As shown in Figure 5, a group 129 of non-operational light emitters 107 can be used to prevent light from being directed towards the thyroid region.

[0069] In some embodiments, the controller 1 10 can simultaneously control the wavelength emissions of first and second groups of light emitters. As illustrated in Figure 3, at step 131 , the controller 1 10 detects a partial rotary position where the visor 102 partially covers both the cranial region 1 19 and facial region 120 or partially covers the facial region 120 and frontal neck region 121. In this position, the controller 1 10 can individually control the light emitters 107 based on the arc angle, ensuring precise and targeted treatment.

[0070] In embodiments with a rotary actuator, the headgear 100 can automatically adjust the visor 102 between different regions, providing a seamless and efficient treatment experience. The controller 1 10 can reposition the visor 102 according to the treatment schedule, ensuring optimal light delivery for each targeted region.

[0071] In alternative embodiments without a rotary actuator, the headgear 100 can provide audible instructions through the headphones 103, guiding the user to reposition the visor 102 manually. This feature ensures that the user can correctly position the visor 102 for effective treatment, enhancing ease of use and overall treatment outcomes.

[0072] The foregoing description, for purposes of explanation, used specific nomenclature to provide a thorough understanding of the invention. However, it will be apparent to one skilled in the art that specific details are not required in order to practise the invention. Thus, the foregoing descriptions of specific embodiments of the invention are presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the invention to the precise forms disclosed as obviously many modifications and variations are possible in view of the above teachings. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, thereby enabling others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. It is intended that the following claims and their equivalents define the scope of the invention.

Claims

Claims1 . A wearable phototherapy headgear device comprising: a headband; a visor connected to the headband and configured to rotate with respect to the headband, the visor comprising a light source configured to direct light towards a wearer of the device in use, wherein the device is configured to control operation of the light source to provide targeted phototherapy to specific regions according to a rotary position of the visor.

2. The headgear as claimed in claim 1 , further comprising a rotary transducer interfacing the visor and the headband, the rotary transducer configured to detect the rotary position of the visor.

3. The headgear as claimed in claim 1 , wherein the headgear is configured to control a wavelength emission of the light source according to the rotary position of the visor.

4. The headgear as claimed in claim 3, wherein the light source comprises a first light emitter configured to emit light at a first wavelength and a second light emitter configured to emit light at a second wavelength, and wherein the headgear is configured to independently operate the first and second light emitters to control the wavelength emission.

5. The headgear as claimed in claim 1 , wherein the headgear is configured to control the light intensity output of the light source according to the rotary position of the visor.

6. The headgear as claimed in claim 1 , wherein the rotary positions comprise a cranial position wherein the visor is located adjacent to a cranial region, and whereinthe headgear is configured to control the light source according to a cranial lighting configuration.

7. The headgear as claimed in claim 1 , wherein the rotary positions comprise a facial position wherein the visor is located adjacent to a facial region, and wherein the headgear is configured to control the light source according to a facial lighting configuration.

8. The headgear as claimed in claim 1 , wherein the rotary positions comprise a frontal neck position wherein the visor is located adjacent to a frontal neck region, and wherein the headgear is configured to control the light source according to a frontal neck lighting configuration.

9. The headgear as claimed in claim 8, wherein the headgear is configured to control the light source to avoid directing light at the frontal neck region.

10. The headgear as claimed in claim 1 , wherein the rotary positions comprise: a cranial position wherein the visor is located adjacent to a cranial region, and wherein the headgear is configured to control the light source according to a cranial lighting configuration; a facial position wherein the visor is located adjacent to a facial region, and wherein the headgear is configured to control the light source according to a facial lighting configuration; and a frontal neck position wherein the visor is located adjacent to a frontal neck region, and wherein the headgear is configured to control the light source according to a frontal neck lighting configuration.1 1 . The headgear as claimed in claim 1 , wherein the light source comprises individually controllable light emitters.

12. The headgear as claimed in claim 1 1 , wherein the headgear is configured to individually control the light emitters according to the rotary position of the visor.

13. The headgear as claimed in claim 12, wherein the headgear is configured to simultaneously control wavelength emissions of a first and second group of the light emitters.

14. The headgear as claimed in claim 13, wherein the light emitters are individually controllable according to the rotary position.

15. The headgear as claimed in claim 1 1 , wherein the headgear is configured to simultaneously control the operation of a first and second group of the light emitters.

16. The headgear as claimed in claim 15, wherein the headgear is configured to simultaneously control the light intensity of a first and second group of the light emitters.

17. The headgear as claimed in claim 15, wherein the light emitters are individually controllable from left to right across the visor.

18. The headgear as claimed in claim 15, wherein the headgear is configured to individually control the light emitters according to a thyroid region of frontal neck region.

19. The headgear as claimed in claim 15, wherein the headgear is configured to individually control the light emitters according to eye regions of the facial region.

20. The headgear as claimed in claim 19, wherein the headgear is configured so that at least one of the position and size of the eye regions is configurable.21 . The headgear as claimed in claim 1 , wherein the headband is configured to be worn behind the neck.

22. The headgear as claimed in claim 21 , further comprising headphones held by the headband.

23. The headgear as claimed in claim 1 , wherein the headgear comprises a rotary actuator configured to adjust the rotary position of the visor.

24. The headgear as claimed in claim 23, wherein the headgear is configured to reposition the visor between various regions to apply different lighting configurations.

25. The headgear as claimed in claim 1 , wherein the headgear is configured to output visor positional instructions to the wearer.

26. The headgear as claimed in claim 25, wherein the headgear outputs audible visor positional instructions using headphones.

27. The headgear as claimed in claim 1 , wherein the rotary positions comprise a cranial position wherein the light source emits light in the red-light spectrum at approximately 630-670 nanometres (nm).

28. The headgear as claimed in claim 1 , wherein the light source is controllable to emit any one of: red light in the range of approximately 620-700 nm; near-infrared light in the range of approximately 700-900 nm; blue light in the range of approximately 400-450 nm; and yellow light in the range of 570-590 nm.

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